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Liu H, Awasthi MK, Zhang Z, Syed A, Bahkali AH. Evaluation of gases emission and enzyme dynamics in sheep manure compost occupying with peach shell biochar. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 351:124065. [PMID: 38697253 DOI: 10.1016/j.envpol.2024.124065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 03/11/2024] [Accepted: 04/25/2024] [Indexed: 05/04/2024]
Abstract
The effect of peach shell biochar (PSB) amendment on sheep manure (SM) composting was investigated. Five different ratios of PSB were applied (0%, 2.5%, 5%, 7.5%, and 10% PSB), and named T1 to T5, and run 50 days of composting experiment. It was found that PSB (especially 7.5% and 10%) could improve the compost environment, regulate the activity of microorganisms and related enzymes, and promote the decomposition of compost. 7.5% and 10% PSB advanced the heap into the thermophilic stage and increased the maximum temperature, while also increasing the germination index by 1.40 and 1.39 times compared to control. Importantly, 10% PSB effectively retained more than 60% of carbon and 55% of nitrogen by inhibiting the excess release of NH3 and greenhouse gases. High proportion PSB amendment increased the activity of dehydrogenase and cellulase, but inhibited protease and urease. The correlation results indicated that PSB changed the key bacterial genus, and there was a stronger association with environmental factors at 7.5% and 10%. Therefore, 7.5% and 10% peach shell biochar can be used as appropriate proportions to improve composting conditions.
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Affiliation(s)
- Hong Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, China.
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
| | - Ali H Bahkali
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
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Zhou W, Hao J, Guo Y, Zhao C, Zhang M, Zhang S, Han F. Revealing bioresponses of biofilm and flocs to salinity gradient in halophilic biofilm reactor. BIORESOURCE TECHNOLOGY 2024; 401:130727. [PMID: 38643952 DOI: 10.1016/j.biortech.2024.130727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/09/2024] [Accepted: 04/18/2024] [Indexed: 04/23/2024]
Abstract
Understanding the different biological responses to salinity gradient between coexisting biofilm and flocs is crucial for regulating the ecological function of biofilm system. This study investigated performance, dynamics, and community assembly of biofilm system under 3 %-7% salinity gradient. The removal efficiency of NH4+-N remained stable and exceeded 93 % at 3 %-6% salinity, but decreased to below 80 % at 7 % salinity. The elevated salinity promoted the synthesis of extracellular polymer substrates, inhibited microbial respiration, and significantly regulated the microbial community structure. Compared to flocs, biofilm exhibited greater species diversity and richer Nitrosomonas. It was found diffusion limitations dominated the microbial community assembly under the salinity gradient. And microbial network revealed positive interactions predominated the microbial relationships, designating norank Spirochaetaceae, unclassified Micrococcales, Corynebacterium, and Pusillimonas as keystone species. Moreover, distinct salinity preferences in nitrogen transformation-related genes were observed. This study can improve the understanding to the regulation of biofilm systems to salt stresses.
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Affiliation(s)
- Weizhi Zhou
- School of Civil Engineering, Shandong University, Jinan, Shandong 250002, China; School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China
| | - Jie Hao
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong 266000, China; School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China
| | - Yiting Guo
- School of Civil Engineering, Shandong University, Jinan, Shandong 250002, China; School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China
| | - Chuanfu Zhao
- School of Civil Engineering, Shandong University, Jinan, Shandong 250002, China; School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China
| | - Mengru Zhang
- School of Civil Engineering, Shandong University, Jinan, Shandong 250002, China; School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China
| | - Shuhui Zhang
- School of Civil Engineering, Shandong University, Jinan, Shandong 250002, China; School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China
| | - Fei Han
- School of Civil Engineering, Shandong University, Jinan, Shandong 250002, China; School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, China.
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Wang L, Chang R, Ren Z, Meng X, Li Y, Gao M. Mature compost promotes biodegradable plastic degradation and reduces greenhouse gas emission during food waste composting. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:172081. [PMID: 38554961 DOI: 10.1016/j.scitotenv.2024.172081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/27/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
Mature compost can promote the transformation of organic matter (OM) and reduce the emission of polluting gases during composting, which provides a viable approach to reduce the environmental impacts of biodegradable plastics (BPs). This study investigated the impact of mature compost on polybutylene adipate terephthalate (PBAT) degradation, greenhouse gas (GHG) emission, and microbial community structure during composting under two treatments with mature compost (MC) and without (CK). Under MC, visible plastic rupture was advanced from day 14 to day 10, and a more pronounced rupture was observed at the end of composting. Compared with CK, the degradation rate of PBAT in MC was increased by 4.44 % during 21 days of composting. Thermobifida, Ureibacillus, and Bacillus, as indicator species under MC treatment, played an important role in PBAT decomposition. Mature compost reduced the total global warming potential (GWP) by 25.91 % via inhibiting the activity of bacteria related to the production of CH4 and N2O. Functional Annotation of Prokaryotic Taxa (FAPROTAX) further revealed that mature compost addition increased relative abundance of bacteria related to multiple carbon (C) cycle functions such as methylotrophy, hydrocarbon degradation and cellulolysis, inhibited nitrite denitrification and denitrification, thus alleviating the emission of GHGs. Overall, mature compost, as an effective additive, exhibits great potential to simultaneously mitigate BP and GHG secondary pollution in co-composting of food waste and PBAT.
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Affiliation(s)
- Lingxiao Wang
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Ruixue Chang
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Zhiping Ren
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Xin Meng
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Yanming Li
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China.
| | - Miao Gao
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Key Laboratory of Microbial Resources Collection and Preservation, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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Wang F, Pan T, Fu D, Fotidis IA, Moulogianni C, Yan Y, Singh RP. Pilot-scale membrane-covered composting of food waste: Initial moisture, mature compost addition, aeration time and rate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:171797. [PMID: 38513870 DOI: 10.1016/j.scitotenv.2024.171797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 03/11/2024] [Accepted: 03/16/2024] [Indexed: 03/23/2024]
Abstract
The impact of different operational parameters on the composting efficiency and compost quality during pilot-scale membrane-covered composting (MCC) of food waste (FW) was evaluated. Four factors were assessed in an orthogonal experiment at three different levels: initial mixture moisture (IMM, 55 %, 60 %, and 65 %), aeration time (AT, 6, 9, and 12 h/d), aeration rate (AR, 0.2, 0.4, and 0.6 m3/h) and mature compost addition ratio (MC, 2 %, 4 %, and 6 %). Results indicated that 55 % IMM, 6 h/d AT, 0.4 m3/h AR, and 4 % MC addition ratio simultaneously provided the compost with the maximum cumulative temperature and the minimum moisture. It was shown that the IMM was the driving factor of this optimum composting process. On contrary, the optimal parameters for reducing carbon and nitrogen loss were 65 % IMM, 6 h/d AT, 0.4 m3/h AR, and 2 % MC addition ratio. The AR had the most influence on reducing carbon and nitrogen losses compared to all other factors. The optimal conditions for compost maturity were 55 % IMM, 9 h/d AT, 0.2 m3/h AR, and 6 % MC addition ratio. The primary element influencing the pH and electrical conductivity values was the AR, while the germination index was influenced by IMM. Protein was the main organic matter limiting the composting efficiency. The results of this study will provide guidance for the promotion and application of food waste MCC technology, and contribute to a better understanding of the mechanisms involved in MCC for organic solid waste treatment.
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Affiliation(s)
- Fei Wang
- School of Civil Engineering, Southeast University, Nanjing 211189, China
| | - Ting Pan
- School of Civil Engineering, Southeast University, Nanjing 211189, China
| | - Dafang Fu
- School of Civil Engineering, Southeast University, Nanjing 211189, China
| | - Ioannis A Fotidis
- School of Civil Engineering, Southeast University, Nanjing 211189, China; Department of Environment, Ionian University, 29100 Zakynthos, Greece
| | | | - Yixin Yan
- School of Civil Engineering, Southeast University, Nanjing 211189, China.
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Arshad MJ, Khan MI, Ali MH, Farooq Q, Hussain MI, Seleiman MF, Asghar MA. Enhanced wheat productivity in saline soil through the combined application of poultry manure and beneficial microbes. BMC PLANT BIOLOGY 2024; 24:423. [PMID: 38760709 PMCID: PMC11102207 DOI: 10.1186/s12870-024-05137-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 05/13/2024] [Indexed: 05/19/2024]
Abstract
BACKGROUND Soil salinity is one of the major menaces to food security, particularly in dealing with the food demand of the ever-increasing global population. Production of cereal crops such as wheat is severely affected by soil salinity and improper fertilization. The present study aimed to examine the effect of selected microbes and poultry manure (PM) on seedling emergence, physiology, nutrient uptake, and growth of wheat in saline soil. A pot experiment was carried out in research area of Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan. Saline soil (12 dS m- 1 w/w) was developed by spiking using sodium chloride, and used in experiment along with two microbial strains (i.e., Alcaligenes faecalis MH-2 and Achromobacter denitrificans MH-6) and PM. Finally, wheat seeds (variety Akbar-2019) were sown in amended and unamended soil, and pots were placed following a completely randomized design. The wheat crop was harvested after 140 days of sowing. RESULTS The results showed a 10-39% increase (compared to non-saline control) in agronomic, physiological, and nutritive attributes of wheat plants when augmented with PM and microbes. Microbes together with PM significantly enhanced seedling emergence (up to 38%), agronomic (up to 36%), and physiological (up to 33%) in saline soil as compared to their respective unamended control. Moreover, the co-use of microbes and PM also improved soil's physicochemical attributes and enhanced N (i.e., 21.7%-17.1%), P (i.e., 24.1-29.3%), and K (i.e., 28.7%-25.3%) availability to the plant (roots and shoots, respectively). Similarly, the co-use of amendments also lowered the Na+ contents in soil (i.e., up to 62%) as compared to unamended saline control. This is the first study reporting the effects of the co-addition of newly identified salt-tolerant bacterial strains and PM on seedling emergence, physiology, nutrient uptake, and growth of wheat in highly saline soil. CONCLUSION Our findings suggest that co-using a multi-trait bacterial culture and PM could be an appropriate option for sustainable crop production in salt-affected soil.
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Affiliation(s)
- Muhammad Junaid Arshad
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Imran Khan
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan.
- Department of Isotope Biogeochemistry, Helmholtz- Center for Environmental Research- UFZ, Leipzig, Germany.
| | - Muhammad Hayder Ali
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Qammar Farooq
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | | | - Mahmoud F Seleiman
- Department of Plant Production, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh, 11451, Saudi Arabia
| | - Muhammad Ahsan Asghar
- Department of Biological Resources, Agricultural Institute, Centre for Agricultural Research, ELKH, Brunzvik St, Martonvásár, 2462, Hungary
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Buates J, Sun Y, He M, Mohanty SK, Khan E, Tsang DCW. Performance of wood waste biochar and food waste compost in a pilot-scale sustainable drainage system for stormwater treatment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 348:123767. [PMID: 38492753 DOI: 10.1016/j.envpol.2024.123767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 12/28/2023] [Accepted: 03/09/2024] [Indexed: 03/18/2024]
Abstract
Sustainable drainage system (SuDS) for stormwater reclamation has the potential to alleviate the water scarcity and environmental pollution issues. Laboratory studies have demonstrated that the capacity of SuDS to treat stormwater can be improved by integrating biochar and compost in the filter media, whereas their performance in scaled-up applications is less reported. This study examines the effectiveness of a pilot-scale SuDS, bioswale followed by bioretention, amended with wood waste biochar (1, 2, and 4 wt.%) and food waste compost (2 and 4 wt.%) to simultaneously remove multiple pollutants including nutrients, heavy metals, and trace organics from the simulated stormwater. Our results confirmed that SuDS modified with both biochar (2 wt.%) and compost (2 wt.%) displayed superior water quality improvement. The system exhibited high removal efficiency (> 70%) for total phosphorus and major metal species including Ni, Pb, Cd, Cr, Cu, and Zn. Total suspended solids concentration was approaching the detection limit in the effluent, thereby confirming its capability to reduce turbidity and particle-associated pollutants from stormwater. Co-application of biochar and compost also moderately immobilized trace organic contaminants such as 2,4-dichlorophenoxyacetic acid, diuron, and atrazine at field-relevant concentrations. Moreover, the soil amendments amplified the activities of enzymes including β-D-cellobiosidase and urease, suggesting that the improved soil conditions and health of microbial communities could possibly increase phyto and bioremediation of contaminants accumulated in the filter media. Overall, our pilot-scale demonstration confirmed that the co-application of biochar and compost in SuDS can provide a variety of benefits for soil/plant health and water quality.
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Affiliation(s)
- Jittrera Buates
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Yuqing Sun
- School of Agriculture, Sun Yat-sen University, Guangdong, China
| | - Mingjing He
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Sanjay K Mohanty
- Department of Civil and Environmental Engineering, University of California Los Angeles, United States
| | - Eakalak Khan
- Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, 89154, United States
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
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Sharafi R, Salehi Jouzani G, Karimi E, Ghanavati H, Kowsari M. Integrating bioprocess and metagenomics studies to enhance humic acid production from rice straw. World J Microbiol Biotechnol 2024; 40:173. [PMID: 38630379 DOI: 10.1007/s11274-024-03959-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 03/15/2024] [Indexed: 04/19/2024]
Abstract
Rice straw burning annually (millions of tons) leads to greenhouse gas emissions, and an alternative solution is producing humic acid with high added-value. This study aimed to examine the influence of a microbial consortium and other additives (chicken manure, urea, olive mill waste, zeolite, and biochar) on the composting process of rice straw and the subsequent production of humic acid. Results showed that among the fungal species, Thermoascus aurantiacus exhibited the most prominent impact in expediting maturation and improving compost quality, and Bacillus subtilis was the most abundant bacterial species based on metagenomics analysis. The highest temperature, C/N ratio reduction, and amount of humic acid production (Respectively in lab 61 °C, 54.67%, 298 g kg-1 and in pilot level 65 °C, 72.11%, 310 g kg-1) were related to treatments containing these microorganisms and other additives except urea. Consequently, T. aurantiacus and B. subtilis can be employed on an industrial scale as compost additives to further elevate quality. Functional analysis showed that the bacterial enzymes in the treatments had the highest metabolic activities, including carbohydrate and amino acid metabolism compared to the control. The maximum enzymatic activities were in the thermophilic phase in treatments which were significantly higher than that in the control. The research emphasizes the importance of identifying and incorporating enzymatically active strains that are suitable for temperature conditions, alongside the native strains in decomposing materials. This strategy significantly improves the composting process and yields high-quality humic acid during the thermophilic phase.
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Grants
- 2-05-05-017-960740 Agricultural Biotechnology Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO)
- 2-05-05-017-960740 Agricultural Biotechnology Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO)
- 2-05-05-017-960740 Agricultural Biotechnology Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO)
- 2-05-05-017-960740 Agricultural Biotechnology Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO)
- 2-05-05-017-960740 Agricultural Biotechnology Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO)
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Affiliation(s)
- Reza Sharafi
- Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Fahmideh Blvd, P.O. Box, Karaj, 31535-1897, Iran
| | - Gholamreza Salehi Jouzani
- Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Fahmideh Blvd, P.O. Box, Karaj, 31535-1897, Iran.
| | - Ebrahim Karimi
- Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Fahmideh Blvd, P.O. Box, Karaj, 31535-1897, Iran
| | - Hosein Ghanavati
- Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Fahmideh Blvd, P.O. Box, Karaj, 31535-1897, Iran
| | - Mojegan Kowsari
- Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Fahmideh Blvd, P.O. Box, Karaj, 31535-1897, Iran
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Lyu Q, Feng Z, Liu Y, Wang J, Xu L, Tian X, Yan Z, Ji G. Analysis of latrine fecal odor release pattern and the deodorization with composited microbial agent. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 178:371-384. [PMID: 38432182 DOI: 10.1016/j.wasman.2024.02.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/02/2024] [Accepted: 02/24/2024] [Indexed: 03/05/2024]
Abstract
As an important source of malodor, the odor gases emitted from public toilet significantly interfered the air quality of living surroundings, resulting in environmental problem which received little attention before. Thus, this paper explored the odor release pattern of latrine feces and deodorization effect with composited microbial agent in Chengdu, China. The odor release rules were investigated in sealed installations with a working volume of 9 L for 20 days. The odor units (OU), ammonia (NH3), hydrogen sulfide (H2S) and total volatile organic compounds (TVOC) were selected to assess the release of malodorous gases under different temperature and humidity, while the highest malodor release was observed under 45℃, with OU and TVOC concentration was 643.91 ± 2.49 and 7767.33 ± 33.50 mg/m3, respectively. Microbes with deodorization ability were screened and mixed into an agent, which composited of Bacillus amyloliquefaciens, Lactobacillus plantarum, Enterococcus faecalis and Pichia fermentans. The addition of microbial deodorant could significantly suppress the release of malodor gas during a 20-day trial, and the removal efficiency of NH3, H2S, TVOC and OU was 81.50 %, 38.31 %, 64.38 %, and 76.86 %, respectively. The analysis of microbial community structure showed that temperature was the main environmental factor driving the microbial variations in latrine feces, while Firmicutes, Actinobacteria, Proteobacteria and Bacteroidetes were the main bacteria phyla involved in the formation and emission of malodorous gases. However, after adding the deodorant, the abundance of Bacteroidetes, Proteobacteria and Actinobacteria were decreased, while the abundance of Firmicutes was increased. Furthermore, P. fermentans successfully colonized in fecal substrates and became the dominant fungus after deodorization. These results expanded the understanding of the odor release from latrine feces, and the composited microbial deodorant provided a valuable basis to the management of odor pollution.
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Affiliation(s)
- Qingyang Lyu
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Zhaozhuo Feng
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Yang Liu
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Jialing Wang
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Lishan Xu
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Xueping Tian
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Zhiying Yan
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Gaosheng Ji
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.
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Wu X, Zhao X, Yi G, Zhang W, Gao R, Tang DKH, Xiao R, Zhang Z, Yao Y, Li R. Promoting nitrogen conversion in aerobic biotransformation of swine slurry with the co-application of manganese sulfate and biochar. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 356:120604. [PMID: 38518501 DOI: 10.1016/j.jenvman.2024.120604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/15/2024] [Accepted: 03/10/2024] [Indexed: 03/24/2024]
Abstract
This study aimed to explore the co-application of MnSO4 (Mn) and biochar (BC) in nitrogen conversion during the composting process. A 70-day aerobic composting was conducted using swine slurry, supplemented with different levels of Mn (0, 0.25%, and 0.5%) and 5% BC. The results demonstrated that the treatment with 0.5MnBC had the highest levels of NH4+-N (3.07 g kg-1), TKN (29.90 g kg-1), and NO3--N (1.94 g kg-1) among all treatments. Additionally, the 0.5MnBC treatment demonstrated higher urease, protease, nitrate reductase, and nitrite reductase activities than the other treatments, with the peak values of 18.12, 6.96, 3.57, and 15.14 mg g-1 d-1, respectively. The addition of Mn2+ increased the total organic nitrogen content by 29.59%-47.82%, the acid hydrolyzed ammonia nitrogen (AN) content by 13.84%-57.86% and the amino acid nitrogen (AAN) content by 55.38%-77.83%. The richness of Chloroflexi and Ascomycota was also enhanced by the simultaneous application of BC and Mn. Structural equation modeling analysis showed that Mn2+ can promote the conversion of Hydrolyzed Unknown Nitrogen (HUN) into AAN, and there is a positive association between urease and NH4+-N according to redundancy analysis. Firmicutes, Basidiomycota, and Mortierellomycota showed significant positive correlations with ASN, AN, and NH4+-N, indicating their crucial roles in nitrogen conversion. This study sheds light on promoting nitrogen conversion in swine slurry composting through the co-application of biochar and manganese sulfate.
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Affiliation(s)
- Xuan Wu
- College of Natural Resources and Environment, Northwest A&F University (NWAFU), Yangling, Shaanxi, 712100, China
| | - Xinyu Zhao
- College of Natural Resources and Environment, Northwest A&F University (NWAFU), Yangling, Shaanxi, 712100, China
| | - Guorong Yi
- College of Natural Resources and Environment, Northwest A&F University (NWAFU), Yangling, Shaanxi, 712100, China
| | - Wanqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University (NWAFU), Yangling, Shaanxi, 712100, China
| | - Runyu Gao
- College of Natural Resources and Environment, Northwest A&F University (NWAFU), Yangling, Shaanxi, 712100, China
| | - Daniel Kuok Ho Tang
- The University of Arizona (UA), The Department of Environmental Science, Shantz Building Rm 4291177 E 4th St.Tucson, AZ, 85721, USA; College of Natural Resources and Environment, NWAFU-AU Microcampus, Yangling, Shaanxi, 712100, China.
| | - Ran Xiao
- College of Resources and Environment, Southwest University, Chongqing, 400715, China
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University (NWAFU), Yangling, Shaanxi, 712100, China; College of Natural Resources and Environment, NWAFU-AU Microcampus, Yangling, Shaanxi, 712100, China; Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi, 712100, China
| | - Yiqing Yao
- Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi, 712100, China; College of Mechanical & Electronic Engineering, Northwest Research Center Rural Renewable Energy Exploitation, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Ronghua Li
- College of Natural Resources and Environment, Northwest A&F University (NWAFU), Yangling, Shaanxi, 712100, China; College of Natural Resources and Environment, NWAFU-AU Microcampus, Yangling, Shaanxi, 712100, China; Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi, 712100, China.
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10
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He X, Peng Z, Zhu Y, Chen Y, Huang Y, Xiong J, Fang C, Du S, Wang L, Zhou L, Huang G, Han L. Wheat straw biochar as an additive in swine manure Composting: An in-depth analysis of mixed material particle characteristics and interface interactions. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 176:41-51. [PMID: 38262072 DOI: 10.1016/j.wasman.2024.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 01/08/2024] [Accepted: 01/12/2024] [Indexed: 01/25/2024]
Abstract
In recent research, biochar has been proven to reduce the greenhouse gases and promote organic matter during the composting. However, gas degradation may be related to the microstructure of compost. To investigate the mechanism of biochar additive, composting was performed using swine manure, wheat straw and biochar and representative solid compost samples were analyzed to characterize the mixed biochar and compost particles. We focused on the microscale, such as the particle size distributions, surface morphologies, aerobic layer thicknesses and the functional groups. The biochar and compost particle agglomerations gradually became weaker and the predominant particle size in the experiment group was < 200 μm. The aerobic layer thickness (Lp) was determined by infrared spectroscopy using the wavenumbers 2856 and 1568 cm-1, which was 0-50 μm increased as composting proceeded in both groups. The biochar increased Lp and facilitated oxygen penetrating the compost particle cores. Besides, in the biochar-swine manure particle interface, the aliphatic compound in the organic components degraded and the content of aromaticity increased with the composting process, which was indicated by the absorption intensity at 2856 cm-1 decreasing trend and the absorption intensity at 1568 cm-1 increasing trend. In summary, biochar performed well in the microscale of compost pile.
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Affiliation(s)
- Xueqin He
- China Agricultural University, China.
| | | | - Yuxiong Zhu
- Xinjiang Qianhai Farm Biotechnology Development Co., Ltd, China
| | | | | | | | - Chen Fang
- China Agricultural University, China
| | - Shurong Du
- Chinese Academy of Agricultural Mechanization Sciences Group Co., Ltd, China
| | | | | | | | - Lujia Han
- China Agricultural University, China
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11
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Yang J, Du Z, Huang C, Li W, Xi B, Zhu L, Wu X. Dynamics of microbial functional guilds involved in the humification process during aerobic composting of chicken manure on an industrial scale. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:21044-21056. [PMID: 38381293 DOI: 10.1007/s11356-024-32390-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 02/05/2024] [Indexed: 02/22/2024]
Abstract
Proper composting treatment of poultry manure waste is recommended before its use as a fertilizer. This involves many bioprocesses driven by microorganisms. Therefore, it is important to understand microbial mechanisms behind these bioprocesses in manure composting systems. Many efforts have been made to study the microbial community structure and diversity in these systems using high-throughput sequencing techniques. However, the dynamics of microbial interaction and functionality, especially for key microbial functional guilds, are not yet fully understood. To address these knowledge gaps, we collected samples from a 150-day industrial chicken manure composting system and performed the microbial network analysis based on the sequencing data. We found that the family Bacillaceae and genus Bacillus might play important roles in organic matter biodegradation at the mesophilic/thermophilic phases. Genera Virgibacillus, Gracilibacillus, Nocardiopsis, Novibacillus, and Bacillaceae_BM62 were identified as the key ones for humic acid synthesis at the mature phases. These findings improve our understanding about the fundamental mechanisms behind manure composting and can aid the development of microbial agents to promote manure composting performance.
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Affiliation(s)
- Jie Yang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, No. 8 Dayangfang, Beiyuan Road, Chaoyang District, Beijing, 100012, China
- State Environmental Protection Key Laboratory of Ecological Effect and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Zhe Du
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, No. 8 Dayangfang, Beiyuan Road, Chaoyang District, Beijing, 100012, China
- State Environmental Protection Key Laboratory of Ecological Effect and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Caihong Huang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, No. 8 Dayangfang, Beiyuan Road, Chaoyang District, Beijing, 100012, China.
- State Environmental Protection Key Laboratory of Ecological Effect and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
| | - Wei Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, No. 8 Dayangfang, Beiyuan Road, Chaoyang District, Beijing, 100012, China
- State Environmental Protection Key Laboratory of Ecological Effect and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Beidou Xi
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, No. 8 Dayangfang, Beiyuan Road, Chaoyang District, Beijing, 100012, China
- State Environmental Protection Key Laboratory of Ecological Effect and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Lin Zhu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, No. 8 Dayangfang, Beiyuan Road, Chaoyang District, Beijing, 100012, China
- State Environmental Protection Key Laboratory of Ecological Effect and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Xinxin Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, No. 8 Dayangfang, Beiyuan Road, Chaoyang District, Beijing, 100012, China
- State Environmental Protection Key Laboratory of Ecological Effect and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
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12
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Zhang L, Yang Y, Bao Z, Zhang X, Yao S, Li Y, Li G, Wang D, Li Q, Yuan J. Plant-derived biochar amendment for compost maturity improvement and gaseous emission reduction in food waste composting: Insight from bacterial community and functions. CHEMOSPHERE 2024; 352:141457. [PMID: 38378050 DOI: 10.1016/j.chemosphere.2024.141457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/30/2024] [Accepted: 02/12/2024] [Indexed: 02/22/2024]
Abstract
This study assessed the impact of different plant-derived biochar (cornstalk, rice husk, and sawdust) on bacterial community and functions for compost maturity and gaseous emissions during the composting of food waste. Results showed that all biochar strengthened organic biotransformation and caused a higher germination index on day 12 (over 100%), especially for rice husk biochar to enhance the growth of Thermobifida related to aerobic chemoheterotrophy. Rice husk biochar also achieved a relatively higher reduction efficiency of methane (85.8%) and ammonia (82.7%) emissions since its greater porous structure. Besides, the growth of Pseudomonas, Pusillimonas, and Desulfitibacter was restricted to constrict nitrate reduction, nitrite respiration, and sulfate respiration by optimized temperature and air permeability, thus reducing nitrous oxide and hydrogen sulfide emissions by 48.0-57.3% by biochar addition. Therefore, rice husk biochar experienced the optimal potential for maturity increment and gaseous emissions mitigation.
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Affiliation(s)
- Lanxia Zhang
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China
| | - Yan Yang
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China
| | - Ziyang Bao
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China; Organic Recycling Institute (Suzhou) of China Agricultural University, Wuzhong District, Suzhou, 215128, China
| | - Xuanshuo Zhang
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China; Organic Recycling Institute (Suzhou) of China Agricultural University, Wuzhong District, Suzhou, 215128, China
| | - Sheng Yao
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China; Organic Recycling Institute (Suzhou) of China Agricultural University, Wuzhong District, Suzhou, 215128, China
| | - Yanming Li
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China
| | - Guoxue Li
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China; Organic Recycling Institute (Suzhou) of China Agricultural University, Wuzhong District, Suzhou, 215128, China.
| | - Dingmei Wang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, China
| | - Qinfen Li
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, China
| | - Jing Yuan
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China; Organic Recycling Institute (Suzhou) of China Agricultural University, Wuzhong District, Suzhou, 215128, China.
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13
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Wang Z, Zhang M, Li J, Wang J, Sun G, Yang G, Li J. Effect of biochar with various pore characteristics on heavy metal passivation and microbiota development during pig manure composting. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 352:120048. [PMID: 38246105 DOI: 10.1016/j.jenvman.2024.120048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/20/2023] [Accepted: 01/04/2024] [Indexed: 01/23/2024]
Abstract
Understanding the porosity of biochar (BC) that promotes the heavy metal (HM) passivation during composting can contribute to the sustainable management of pig manure (PM). The current work aimed to explore the influence of BC with varying pore sizes on the physicochemical properties and morphological changes of HMs (including Zn, Cu, Cr, As, and Hg), and microbiota development during PM composting. The various pore sizes of BC were generated by pyrolyzing pine wood at 400 (T1), 500 (T2), 600 (T3) and 700 (T4) °C, respectively. The results revealed a positive correlation between specific surface area of BC and pyrolysis temperature. BC addition contributed to a significantly extended compost warming rate and duration of high-temperature period, as well as HM passivation, reflected in the decrease in Exc-Zn (63-34%) and Red-Cu (28-13%) content, and the conversion of Oxi-Cr (29-21%) and Red-Hg (16-5%) to more stable forms. Moreover, BC at T4 exhibited the best effect on Zn and Cu passivation due to the highest specific surface area (380.03 m2/g). In addition to its impact on HM passivation, BC addition improved the microbial environment during PM composting, leading to enhanced microbial diversity and richness. Notably, Chloroflexi and Bacteroidota played key roles in promoting the transformation of Exc-Cu and Red-Hg into stable forms. This phenomenon further stimulated the enhanced decomposition of organic matter (OM) when BC prepared at 600-700 °C was added. Therefore, it can be concluded that the regulation of BC porosity is an effective strategy to improve HM passivation and the overall effectiveness of PM composting.
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Affiliation(s)
- Ziqi Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Min Zhang
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Ju Li
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jiamin Wang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China; Key Laboratory of Protected Horticulture Engineering in Northwest, Ministry of Agriculture and Rural Affairs, China
| | - Guotao Sun
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China; Key Laboratory of Protected Horticulture Engineering in Northwest, Ministry of Agriculture and Rural Affairs, China.
| | - Gongshe Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jianming Li
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China; Key Laboratory of Protected Horticulture Engineering in Northwest, Ministry of Agriculture and Rural Affairs, China
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14
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Guo L, Li L, Zhou S, Xiao P, Zhang L. Metabolomic insight into regulatory mechanism of heterotrophic bacteria nitrification-aerobic denitrification bacteria to high-strength ammonium wastewater treatment. BIORESOURCE TECHNOLOGY 2024; 394:130278. [PMID: 38168563 DOI: 10.1016/j.biortech.2023.130278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/28/2023] [Accepted: 12/28/2023] [Indexed: 01/05/2024]
Abstract
This work aimed to elucidate the metabolic mechanism of heterotrophic nitrification-aerobic denitrification (HN-AD) bacteria influenced by varying concentrations of ammonium nitrogen (NH4+-N) in high-strength synthetic wastewater treatment. The results showed that the removal rates of NH4+-N and total nitrogen, along with enzymatic activities related to nitrification and denitrification, increased with rising NH4+-N concentrations (N500:500 mg/L, N1000:1000 mg/L and N2000:2000 mg/L). The relative abundances of HN-AD bacteria were 50 %, 62 % and 82 % in the three groups. In the N2000 group, the cAMP signaling pathway, glycerophospholipid metabolites, purines and pyrimidines related to DNA/RNA synthesis, electron donor NAD+-related energy, the tricarboxylic acid (TCA) cycle and glutamate metabolism were upregulated. Therefore, influent NH4+-N at 2000 mg/L promoted glutamate metabolism to accelerate the TCA cycle, and enhanced cellular energy and advanced denitrification activity of bacteria for HN-AD. This mechanism, in turn, enhanced microbial growth and the carbon and nitrogen metabolism of bacteria for HN-AD.
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Affiliation(s)
- Lei Guo
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China; School of Chemical Engineering, Chongqing Chemical Industry Vocational College, Chongqing 401228, China
| | - Longshan Li
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China
| | - Shibo Zhou
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China
| | - PengYing Xiao
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China.
| | - Lei Zhang
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China
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15
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You X, Wang S, Chen J. Magnetic biochar accelerates microbial succession and enhances assimilatory nitrate reduction during pig manure composting. ENVIRONMENT INTERNATIONAL 2024; 184:108469. [PMID: 38324928 DOI: 10.1016/j.envint.2024.108469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/30/2024] [Accepted: 01/30/2024] [Indexed: 02/09/2024]
Abstract
Biochar promotes microbial metabolic activities and reduces N2O on aerobic composting. However, the effects of magnetic biochar (MBC) on the microbial succession and N2O emissions during pig manure composting remain unclear. Herein, a 42-day composting experiment was conducted with five treatment regimes: pig manure without biochar (CK), 5 % pig manure-based biochar (5 % PBC), 2 % MBC (2 % MBC), 5 % MBC (5 % MBC) and 7.5 % MBC (7.5 % MBC)), to clarify the variation in functional microorganisms and genes associated with nitrogen and direct interspecies electron transfer via metagenomics. Fourier-transform infrared spectroscopy showed that MBC possessed more stable aromatic structures than pig manure-based biochar (PBC), indicating its greater potential for nitrous oxide reduction. MBC treatments were more effective in composting organic matter and improving the carbon/nitrogen ratio than PBC. The microbial composition during composting varied significantly, with the dominant phyla shifting from Firmicutes to Proteobacteria, Actinobacteria, and Bacteroidota. Network and hierarchical clustering analyses showed that the MBC treatment enhanced the interactions of dominant microbes (Proteobacteria and Bacteroidota) and accelerated the composting process. The biochar addition accelerated assimilatory nitrate reduction and slowed dissimilatory nitrate reduction and denitrification. The Mantel test demonstrated that magnetic biochar potentially helped regulate composting nutrients and affected functional nitrogen genes. These findings shed light on the role of MBC in mitigating greenhouse gas emissions during aerobic composting.
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Affiliation(s)
- Xinxin You
- Institute of Eco-environmental Sciences, Wenzhou Academy of Agricultural Sciences, Wenzhou 325006, PR China; Southern Zhejiang Key Laboratory of Crop Breeding, Wenzhou Academy of Agricultural Sciences, Wenzhou 325006, PR China; The State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, PR China.
| | - Sheng Wang
- Institute of Eco-environmental Sciences, Wenzhou Academy of Agricultural Sciences, Wenzhou 325006, PR China
| | - Junhui Chen
- The State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, PR China
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16
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Yu C, Li M, Huang H, Yan J, Zhang X, Luo T, Ye M, Meng F, Sun T, Hou J, Xi B. Electron transfer and microbial mechanism of synergistic degradation of lignocellulose by hydrochar and aerobic fermentation. BIORESOURCE TECHNOLOGY 2024; 394:129980. [PMID: 38042433 DOI: 10.1016/j.biortech.2023.129980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 11/02/2023] [Accepted: 11/02/2023] [Indexed: 12/04/2023]
Abstract
In response to the problem of asynchronous fermentation between lignocellulose and perishable materials in compost, the combined technology of low-temperature hydrochar and compost has been studied. Hydrochar was prepared through low-temperature hydrothermal reactions and applied to aerobic fermentation. The response relationship between lignocellulose content, electron transfer capability, and microbes was explored. The results showed that a pore structure with oxygen-containing functional groups was formed in hydrochar, promoting electron transfer during composting. With the rapid increase in composting temperature, the lignocellulose content decreased by 64.36 mg/g. Oceanobacillus, Cerasibacillus, Marinimicrobium, and Gracilibacillus promoted the degradation of lignocellulose and the carbon/nitrogen cycle during aerobic fermentation, and there was a significant response relationship between electron transfer capability and functional microbes. The combined application of hydrochar and aerobic fermentation accelerated the degradation of lignocellulose. This study provides technical support for the treatment of heterogeneous organic waste.
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Affiliation(s)
- Chengze Yu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; College of Management and Economics, Tianjin University, Tianjin 300072, China
| | - Mingxiao Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Haipeng Huang
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing 100871, China
| | - Jie Yan
- School of Renewable Energy, North China Electric Power University, Beijing 102206, China
| | - Xiaolei Zhang
- Department of Chemical and Process Engineering, University of Strathclyde, UK
| | - Tao Luo
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 10041, China
| | - Meiying Ye
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Fanhua Meng
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Tiecheng Sun
- Fujian Provincial Animal Husbandry Station, Fujian 350003, China
| | - Jiaqi Hou
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Beidou Xi
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
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17
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Su Y, Wang Y, Liu G, Zhang Z, Li X, Chen G, Gou Z, Gao Q. Nitrogen (N) "supplementation, slow release, and retention" strategy improves N use efficiency via the synergistic effect of biochar, nitrogen-fixing bacteria, and dicyandiamide. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168518. [PMID: 37967639 DOI: 10.1016/j.scitotenv.2023.168518] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/10/2023] [Accepted: 11/10/2023] [Indexed: 11/17/2023]
Abstract
Irrational nitrogen (N) fertilizer management and application practices have led to a range of ecological and environmental problems that seriously threaten food security. In this study, an effective N fertilizer management strategy was established for improving N fertilizer utilization efficiency (NUE). Biochar, N2-fixing bacteria (Enterobacter cloacae), and a nitrification inhibitor (dicyandiamide, DCD) were simultaneously added to the soil during maize cultivation. The goal was to increase soil ammonium nitrogen content and NUE by regulating the relative abundance, enzyme activity, and functional gene expression of N conversion-related soil microbes. Biochar combined with E. cloacae and DCD significantly increased soil N content, and the NUE reached 46.69 %. The relative abundance of Burkholderia and Bradyrhizobium and the activity of nitrogenase increased significantly during biological N2 fixation. Further, the abundance of the nifH gene was significantly up-regulated. The relative abundance of Sphingomonas, Pseudomonas, Nitrospira, and Castellaniella and the activities of ammonia monooxygenase and nitrate reductase decreased significantly during nitrification and denitrification. Moreover, the abundance of the genes amoA and narG was significantly down-regulated. Correlation analyses showed that the increase in soil N2 fixation and the suppression of nitrification and denitrification reactions were the key contributors to the increase in soil N content and NUE. Biochar combined with E. cloacae and DCD synergistically enabled the supplementation, slow release, and retention of N, thus providing adequate N for maize growth. Thus, the combination of biochar, E. cloacae, and DCD is effective for mitigating the irrational application of N fertilizers and reducing N pollution.
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Affiliation(s)
- Yingjie Su
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Yanran Wang
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Guoqing Liu
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Zhongqing Zhang
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Xiaoyu Li
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Guang Chen
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Zechang Gou
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
| | - Qiang Gao
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
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18
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Liu Z, Awasthi MK, Zhao J, Liu G, Syed A, Al-Shwaiman HA, Fang J. Unraveling impacts of inoculating novel microbial agents on nitrogen conversion during cattle manure composting: Core microorganisms and functional genes. BIORESOURCE TECHNOLOGY 2023; 390:129887. [PMID: 37858800 DOI: 10.1016/j.biortech.2023.129887] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/16/2023] [Accepted: 10/16/2023] [Indexed: 10/21/2023]
Abstract
The impacts of microbial agents on nitrogen conversion during composting is still not entirely clear. In this research, a novel microbial agent containing two thermotolerant nitrifying bacteria was identified and its impacts on nitrogen conversion, bacterial structure and functional genes during cattle manure composting were investigated. The results revealed that the inoculation enhancing the maturation of compost, increased the total nitrogen by 13.6-26.8%, reduced NH3 emission and the N2O emission by 24.8-36.1% and 22.7-32.1%, respectively. Particularly, the microbial agents mixed Acinetobacter radioresistens and Bacillus nitratireducens (1:1, treatment group 1) had the best nitrogen preservation effect. Furthermore, the inoculation not only produced diverse diazotroph community but could strength the co-occurrence between core microorganisms to promote nitrogen metabolism. The metagenomic analysis demonstrated that the inoculation decreased the abundance of nitrate reduction gene (nirS, norC, nap and nif), and increased the abundance of hao, thus facilitating nitrification and suppressing NH3 and N2O emission.
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Affiliation(s)
- Zhuangzhuang Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Hunan Engineering Laboratory for Pollution Control and Waste Utilization in Swine Production, Changsha 410128, PR Chin
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Jinfeng Zhao
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Hunan Engineering Laboratory for Pollution Control and Waste Utilization in Swine Production, Changsha 410128, PR Chin
| | - Gang Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Hunan Engineering Laboratory for Pollution Control and Waste Utilization in Swine Production, Changsha 410128, PR Chin
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
| | - Hind A Al-Shwaiman
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
| | - Jun Fang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Hunan Engineering Laboratory for Pollution Control and Waste Utilization in Swine Production, Changsha 410128, PR Chin.
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19
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de Morais JS, Cabral L, Bezerril FF, Uhlmann LO, Dos Santos Lima M, Noronha MF, Dos Santos SA, Madruga MS, Olegario LS, Wagner R, Sant'Ana AS, Magnani M. Farming system impacts the bioactive compounds, microbial diversity, aroma and color in edible red mini-roses (Rosa chinensis Jacq.). Food Res Int 2023; 173:113233. [PMID: 37803548 DOI: 10.1016/j.foodres.2023.113233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 06/15/2023] [Accepted: 06/27/2023] [Indexed: 10/08/2023]
Abstract
Mini-roses (Rosa chinensis Jacq.) is largely used in salty dishes and desserts. This study evaluated instrumental color, sugars, organic acids, phenolics, volatiles, and the indigenous microbiota (fungi and bacteria) in edible mini-roses farmed in discarded fruits biocompost and animal manure systems. A descriptive sensory analysis of flowers was also performed. Mini-roses farmed in biocompost had higher luminosity and intensity of instrumental red color, a higher concentration of phenolic compounds, including anthocyanins related to red color, and fructose than mini-roses farmed in animal manure (p < 0.05). Furthermore, mini-roses farmed in biocompost had higher concentrations of various volatiles (p < 0.05), including hexyl acetate and cis-3 -hexenyl butyrate related to the fruity aroma. Bacterial groups related to plant growth-promoting such as Stenotrophomonas and endophilic fungal groups such as Eurotiales sp, Pleosporales sp were found in higher abundance (p < 0.05) in mini-roses farmed in biocompost. Mini-rose farmed in biocompost also received higher score (p < 0.05) for fruity aroma and red color than mini-rose mini-roses farmed in animal manure. Results indicate that farming mini-roses using biocompost from discarded fruits impacts the synthesis of phenolics and volatiles, resulting in a more intense fruity aroma and red color. Findings also suggest that the microbiota of mini-roses farmed in biocompost or animal manure do not represent a major risk for the safety of these products.
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Affiliation(s)
- Janne Santos de Morais
- Laboratory of Microbial Processes in Foods, Department of Food Engineering, Center of Technology, Federal University of Paraíba, Campus I, 58051-900 João Pessoa, Paraíba, Brazil
| | - Lucélia Cabral
- Laboratory of Microbial Processes in Foods, Department of Food Engineering, Center of Technology, Federal University of Paraíba, Campus I, 58051-900 João Pessoa, Paraíba, Brazil
| | - Fabricia França Bezerril
- Laboratory of Microbial Processes in Foods, Department of Food Engineering, Center of Technology, Federal University of Paraíba, Campus I, 58051-900 João Pessoa, Paraíba, Brazil
| | - Lilian Osmari Uhlmann
- Department of Phytotechnics, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Marcos Dos Santos Lima
- Department of Food Technology, Federal Institute of Sertão Pernambucano, Petrolina, Pernambuco, Brazil
| | - Melline F Noronha
- Department of Microbiology and Immunology, Stritch School of Medicine, Loyola University Chicago, Maywood, IL, USA
| | - Silvana Alves Dos Santos
- Empresa Paraibana de Abastecimento e Serviços Agrícolas - EMPASA, João Pessoa, Paraíba 58071-000, Brazil
| | - Marta Suely Madruga
- Laboratory of Flavor Analysis, Department of Food Engineering, Center of Technology, Federal University of Paraíba, João Pessoa, Brazil
| | - Lary Souza Olegario
- Laboratory of Flavor Analysis, Department of Food Engineering, Center of Technology, Federal University of Paraíba, João Pessoa, Brazil
| | - Roger Wagner
- Department of Food Science Technology, Federal University Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Anderson S Sant'Ana
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, State of São Paulo, Brazil
| | - Marciane Magnani
- Laboratory of Microbial Processes in Foods, Department of Food Engineering, Center of Technology, Federal University of Paraíba, Campus I, 58051-900 João Pessoa, Paraíba, Brazil.
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20
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Ding S, Jiang L, Hu J, Huang W, Lou L. Microbiome data analysis via machine learning models: Exploring vital players to optimize kitchen waste composting system. BIORESOURCE TECHNOLOGY 2023; 388:129731. [PMID: 37704090 DOI: 10.1016/j.biortech.2023.129731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 08/24/2023] [Accepted: 09/05/2023] [Indexed: 09/15/2023]
Abstract
Composting, reliant on microorganisms, effectively treats kitchen waste. However, it is difficult to precisely understand the specific role of key microorganisms in the composting process by relying solely on experimental research. This study aims to employ machine learning models to explore key microbial genera and to optimize composting systems. After introducing a novel microbiome preprocessing approach, Stacking models were constructed (R2 is about 0.8). The SHAP method (SHapley Additive exPlanations) identified Bacillus, Acinetobacter, Thermobacillus, Pseudomonas, Psychrobacter, and Thermobifida as prominent microbial genera (Shapley values ranging from 3.84 to 1.24). Additionally, microbial agents were prepared to target the identified key genera, and experiments demonstrated that the composting quality score was 76.06 for the treatment and 70.96 for the control. The exogenous agents enhanced decomposition and improved compost quality in later stages. In summary, this study opens up a new avenue to identifying key microorganisms and optimizing the biological treatment process.
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Affiliation(s)
- Shang Ding
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Liyan Jiang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Jiyuan Hu
- College of Computer Science and Technology, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Wuji Huang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Liping Lou
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China.
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21
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Ma L, Zhou Y, Wang A, Li Q. A potential heavy metals detoxification system in composting: Biotic and abiotic synergy mediated by shell powder. BIORESOURCE TECHNOLOGY 2023; 386:129576. [PMID: 37506928 DOI: 10.1016/j.biortech.2023.129576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/18/2023] [Accepted: 07/25/2023] [Indexed: 07/30/2023]
Abstract
Regulating heavy metal resistance genes (HMRGs) was an effective method for heavy metal resistant bacteria (HMRB) to cope with heavy metal stress during dairy manure composting. This research aimed to investigate heavy metal detoxification mediated by shell powder (SP) in composting and the response of HMRB and HMRGs to changes in heavy metal bioavailability during composting. Research showed that SP additive reduced the bioavailability of Zu, Cu, and Mn by 10.64%, 13.90% and 14.14%, respectively. SP increased the composition percentage of humic acid (HA) in humus (HS) by 8%. SP enhanced the resistance of Actinobacteria to heavy metals and improved the regulation of HMRGs. Correlation analysis demonstrated that the bioavailability of heavy metals was positively correlated with most HMRGs. HA was significantly negatively correlated with the bioavailability of Zn, Cu and Mn. Therefore, SP additive could be a novel strategy for heavy metals detoxification during composting.
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Affiliation(s)
- Liangcai Ma
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Yucheng Zhou
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Ao Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Qunliang Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
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22
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Zhang L, Tsui TH, Wah Tong Y, Sharon S, Shoseyov O, Liu R. Biochar applications in microbial fermentation processes for producing non-methane products: Current status and future prospects. BIORESOURCE TECHNOLOGY 2023; 386:129478. [PMID: 37460021 DOI: 10.1016/j.biortech.2023.129478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/05/2023] [Accepted: 07/08/2023] [Indexed: 07/23/2023]
Abstract
The objective of this review is to encourage the technical development of biochar-assisted microbial fermentation. To this end, recent advances in biochar applications for microbial fermentation processes (i.e., non-methane products of hydrogen, acids, alcohols, and biofertilizer) have been critically reviewed, including process performance, enhanced mechanisms, and current research gaps. Key findings of enhanced mechanisms by biochar applications in biochemical conversion platforms are summarized, including supportive microbial habitats due to the immobilization effect, pH buffering due to alkalinity, nutrition supply due to being rich in nutrient elements, promoting electron transfer by acting as electron carriers, and detoxification of inhibitors due to high adsorption capacity. The current technical limitations and biochar's industrial applications in microbial fermentation processes are also discussed. Finally, suggestions like exploring functionalized biochar materials, biochar's automatic addition and pilot-scale demonstration are proposed. This review would further promote biochar applications in microbial fermentation processes for the production of non-methane products.
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Affiliation(s)
- Le Zhang
- Biomass Energy Engineering Research Centre/Department of Resources and Environment, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, 800 Dongchuan Road, Shanghai 200240, PR China.
| | - To-Hung Tsui
- Department of Engineering Science, University of Oxford, OX1 3PJ, Oxford, UK
| | - Yen Wah Tong
- NUS Environmental Research Institute, National University of Singapore, 1 Create Way, Create Tower #15-02, Singapore 138602, Singapore; Energy and Environmental Sustainability for Megacities (E2S2) Phase II, Campus for Research Excellence and Technological Enterprise (CREATE), 1 Create Way, Singapore 138602, Singapore; Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Sigal Sharon
- Plant Molecular Biology and Nano Biotechnology, The Robert H Smith Institute of Plant Science and Genetics, The Robert H Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Herzl 229, Rehovot 7610001, Israel
| | - Oded Shoseyov
- Plant Molecular Biology and Nano Biotechnology, The Robert H Smith Institute of Plant Science and Genetics, The Robert H Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Herzl 229, Rehovot 7610001, Israel
| | - Ronghou Liu
- Biomass Energy Engineering Research Centre/Department of Resources and Environment, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, 800 Dongchuan Road, Shanghai 200240, PR China
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23
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Liu H, Awasthi MK, Zhang Z, Syed A, Bahkali AH, Sindhu R, Verma M. Microbial dynamics and nitrogen retention during sheep manure composting employing peach shell biochar. BIORESOURCE TECHNOLOGY 2023; 386:129555. [PMID: 37499921 DOI: 10.1016/j.biortech.2023.129555] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/23/2023] [Accepted: 07/24/2023] [Indexed: 07/29/2023]
Abstract
In this study, the effects of peach shell biochar (PSB) and microbial agent (EM) amendment on nitrogen conservation and bacterial dynamics during sheep manure (SM) composting were examined. Six treatments were performed including T1 (control with no addition), T2 (EM), T3 (EM + 2.5 %PSB), T4 (EM + 5 %PSB), T5 (EM + 7.5 %PSB), and T6 (EM + 10 %PSB). The results showed that the additives amendment reduced NH3 emissions by 6.12%∼32.88% and N2O emissions by 10.96%∼19.76%, while increased total Kjeldahl nitrogen (TKN) content by 8.15-9.13 g/kg. Meanwhile, Firmicutes were the dominant flora in the thermophilic stages, while Proteobacteria, Actinobacteriota, and Bacteroidota were the dominant flora in the maturation stages. The abundance of Bacteroidota and Actinobacteriota were increased by 17.49%∼32.51% and 2.31%∼12.60%, respectively, which can accelerate the degradable organic materials decomposition. Additionally, redundancy analysis showed that Proteobacteria, Actinobacteriota, and Bacteroidota were positively correlated with NO3--N, TKN, and N2O, but a negative correlation with NH3 and NH4+-N. Finally, results confirmed that (EM + 10 %PSB) additives were more effective to reduce nitrogen loss and improve bacterial dynamics.
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Affiliation(s)
- Hong Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China.
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Ali H Bahkali
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Raveendran Sindhu
- Department of Food Technology, TKM Institute of Technology, Kollam 691505, Kerala, India
| | - Meenakshi Verma
- University Centre for Research & Development, Department of Chemistry, Chandigarh University, Gharuan, Mohali, India
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24
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Ye J, Wang Y, Wang Y, Hong L, Kang J, Jia Y, Li M, Chen Y, Wu Z, Wang H. Improvement of soil acidification and ammonium nitrogen content in tea plantations by long-term use of organic fertilizer. PLANT BIOLOGY (STUTTGART, GERMANY) 2023; 25:994-1008. [PMID: 37345615 DOI: 10.1111/plb.13554] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 05/07/2023] [Indexed: 06/23/2023]
Abstract
Soil acidification is common in some Chinese tea plantations, which seriously affected growth of tea trees. Hence, it is essential to explore soil remediation in acidified tea plantations for sustainable development of the tea industry. We sought to determine how different fertilizers affect acidified soil and their N transformation in tea plantations. Different fertilizers were used on acidified tea plantation soils for 4 years (2017-2021), and changes in soil pH, indices related to soil N transformation and tea yield were analysed to construct interaction networks of these indices and find which had the largest influence on fertilization. Long-term use of sheep manure reduced soil acidification, increased soil pH, enhanced the number and intensity of N-fixing and ammonifying bacteria, urease, protease, asparaginase and N-acetamide glucose ribosidase activity and nifH gene expression. This treatment reduced the number and intensity of soil nitrifying and denitrifying bacteria, nitrate reductase and nitrite reductase activity, while the expression of amoA-AOA, nirK, nirS, narG and nosZ in turn increased ammonium N content of the soil, reduced nitrate N content, and enhanced tea yield. Topsis index weight analysis showed that ammonium N content in the soil had the largest impact among fertilization effects. Long-term use of sheep manure was beneficial in restoring the balance of the micro-ecosystem in acidified soil. This study provides an important practical basis for soil remediation and fertilizer management in acidified tea plantation soils.
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Affiliation(s)
- J Ye
- College of Tea and Food, Wuyi University, Wuyishan, China
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Y Wang
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
- College of Life Science, Longyan University, Longyan, China
| | - Y Wang
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - L Hong
- College of Life Science, Longyan University, Longyan, China
| | - J Kang
- College of Life Science, Longyan University, Longyan, China
| | - Y Jia
- College of Life Science, Longyan University, Longyan, China
| | - M Li
- College of Life Science, Longyan University, Longyan, China
| | - Y Chen
- College of Life Science, Longyan University, Longyan, China
| | - Z Wu
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - H Wang
- College of Tea and Food, Wuyi University, Wuyishan, China
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25
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Le VR, Nguyen MK, Nguyen HL, Lin C, Rakib MRJ, Thai VA, Le VG, Malafaia G, Idris AM. Organic composts as A vehicle for the entry of microplastics into the environment: A comprehensive review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 892:164758. [PMID: 37308024 DOI: 10.1016/j.scitotenv.2023.164758] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/06/2023] [Accepted: 06/06/2023] [Indexed: 06/14/2023]
Abstract
Plastic pollution is a widespread issue that poses a threat to agroecosystems. Recent data on microplastic (MP) pollution from compost and its application to soil have highlighted the potential impact of micropollutants that may be transferred from compost. Thus, we aim with this review to elucidate the distribution-occurrence, characterization, fate/transport, and potential risk of MPs from organic compost to gain comprehensive knowledge and mitigate the adverse impacts of compost application. The concentration of MPs in compost was up to thousands of items/kg. Among micropollutants, fibers, fragments, and films are the most common, with small MPs having a higher potential to absorb other pollutants and cause harm to organisms. Various synthetic polymers, including polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polystyrene (PS), polyvinyl chloride (PVC), polyester (PES), and acrylic polymers (AP), have been widely used of plastic items. MPs are emerging pollutants that can have diverse effects on soil ecosystems, as they can transfer potential pollutants from MPs to compost and then to the soil. Following the microbial degradation scheme, the transfer chain from plastics to compost to soil can be broken down into main stages, i.e., colonization - (bio)fragmentation - assimilation - and mineralization. Microorganisms and adding biochar play an essential role during composting, which can be an effective solution to enhance MP degradation. Findings have shown that stimulating free radical generation could promote the biodegradation efficacy of MPs and possibly remove their occurrence in compost, thereby reducing their contribution to ecosystem pollution. Furthermore, future recommendations were discussed to reduce ecosystem risks and health challenges.
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Affiliation(s)
- Van-Re Le
- Ho Chi Minh City University of Food Industry (HUFI), 140 Le Trong Tan Street, Tan Phu District, Ho Chi Minh City 700000, Viet Nam
| | - Minh-Ky Nguyen
- Faculty of Environment and Natural Resources, Nong Lam University of Ho Chi Minh City, Hamlet 6, Linh Trung Ward, Thu Duc City, Ho Chi Minh City 700000, Viet Nam; Ph.D. Program in Maritime Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan.
| | - Hoang-Lam Nguyen
- Department of Civil Engineering, McGill University, Montreal, Canada
| | - Chitsan Lin
- Ph.D. Program in Maritime Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan; Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan
| | - Md Refat Jahan Rakib
- Department of Fisheries and Marine Science, Faculty of Science, Noakhali Science and Technology University, Noakhali 3814, Bangladesh.
| | - Van-Anh Thai
- Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan
| | - Van-Giang Le
- Central Institute for Natural Resources and Environmental Studies, Vietnam National University, Hanoi 111000, Viet Nam
| | - Guilherme Malafaia
- Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil.
| | - Abubakr M Idris
- Department of Chemistry, College of Science, King Khalid University, 61431 Abha, Saudi Arabia; Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61421, Saudi Arabia
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26
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Wang Z, Song B, Xu L, He Y, Chen H, Zhang A, Wang Y, Tai J, Zhang R, Song L, Xue G. Organic carbon source excites extracellular polymeric substances to boost Fe 0-mediated autotrophic denitrification in mixotrophic system. CHEMOSPHERE 2023:139352. [PMID: 37394192 DOI: 10.1016/j.chemosphere.2023.139352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 06/06/2023] [Accepted: 06/25/2023] [Indexed: 07/04/2023]
Abstract
Fe0-mediated autotrophic denitrification (ADN) can be suppressed by iron oxide coverage resulting from Fe0 corrosion. The mixotrophic denitrification (MDN) coupling Fe0-mediated ADN with heterotrophic denitrification (HDN) can circumvent the weakening of Fe0-mediated ADN over operation time. But the interaction between HDN and Fe0-mediated ADN for nitrogen removal of secondary effluent with deficient bioavailable organics remains unclear. When the influent COD/NO3--N ratio increased from 0.0 to 1.8-2.1, the TN removal efficiency was promoted significantly. The increased carbon source did not inhibit ADN, but promoted ADN and HDN synchronously. The formation of extracellular polymeric substances (EPS) was also facilitated concomitantly. Protein (PN) and humic acid (HA) in EPS increased significantly, which capable of accelerating electron transfer of denitrification. Due to that the electron transfer of HDN occurs intracellularly, the EPS with the capacity of accelerating electron transfer had a negligible influence on HDN. But for Fe0-mediated ADN, the increased EPS as well as corresponding PN and HA facilitated TN and NO3--N removal significantly, while accelerated the electron release originating from Fe0 corrosion. The bioorganic-Fe complexes were generated on Fe0 surface after used, meaning that the soluble EPS and soluble microbial products (SMP) participated in the electron transfer of Fe0-mediated ADN. The coexistence of HDN and ADN denitrifiers demonstrated the synchronous enhancement of HDN and ADN by the external carbon source. From the perspective of EPS and related SMP, the insight of enhancing Fe0-mediated ADN by external carbon source is beneficial to implement high-efficiency MDN for organics-deficient secondary wastewater.
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Affiliation(s)
- Zheng Wang
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Binxue Song
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Lei Xu
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Yueling He
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Hong Chen
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Ai Zhang
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Yayi Wang
- College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Jun Tai
- Shanghai Environmental Sanitation Engineering Design Institute Co. Ltd, Shanghai, 200232, China
| | - Ruina Zhang
- Shanghai Environmental Sanitation Engineering Design Institute Co. Ltd, Shanghai, 200232, China
| | - Lijie Song
- Shanghai Environmental Sanitation Engineering Design Institute Co. Ltd, Shanghai, 200232, China
| | - Gang Xue
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China.
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27
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Duan Y, Awasthi MK, Yang J, Tian Y, Li H, Cao S, Syed A, Verma M, Ravindran B. Bacterial community dynamics and co-occurrence network patterns during different stages of biochar-driven composting. BIORESOURCE TECHNOLOGY 2023:129358. [PMID: 37336449 DOI: 10.1016/j.biortech.2023.129358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/12/2023] [Accepted: 06/16/2023] [Indexed: 06/21/2023]
Abstract
Bacterial communities were dynamically tracked at four stages of biochar-driven sheep manure pile composting, and the co-occurrence networks with keystone taxa were established. The succession of bacterial community obvious varied during the composting process, Proteobacteria predominant in initial stage (39%) then shifted into Firmicutes in thermophilic (41%) and mesophilic (27%) stages, finally the maturation stage dominant by Bacteroidota (26%). Visualizations of bacterial co-occurrence networks demonstrate more cooperative mutualism and complex interactions in the thermophilic and mesophilic phases. Noticeably, the 7.5 and 10% biochar amended composts shown highest connections (736 and 663 total links) and positive cooperation (97.37 and 97.13% positive link) as well as higher closeness centrality and betweenness centrality of keystone taxa. Overall, appropriate biochar addition alters bacterial community succession and strengthens connection between keystone taxa and other bacteria, with 7.5 and 10% biochar amended composts has intense mutualistic symbiosis among bacterial communities.
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Affiliation(s)
- Yumin Duan
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Jianfeng Yang
- College of Resources Environment Science and Technology, Hubei University of Science and Technology, Xianning 437100, Hubei, China
| | - Yuan Tian
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Huike Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China.
| | - Shan Cao
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Meenakshi Verma
- University Centre for Research & Development Department of Chemistry Chandigarh University Gharuan, Mohali, India
| | - Balasubramani Ravindran
- Department of Environmental Energy and Engineering, Kyonggi University, Yeongtong-Gu, Suwon, Gyeonggi-Do 16227, South Korea
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28
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Li H, Tan L, Liu W, Li X, Zhang D, Xu Y. Unraveling the effect of added microbial inoculants on ammonia emissions during co-composting of kitchen waste and sawdust: Core microorganisms and functional genes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 874:162522. [PMID: 36868270 DOI: 10.1016/j.scitotenv.2023.162522] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/15/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
Despite the role of microorganisms in nitrogen biotransformation has been extensively explored, how microorganisms mitigate NH3 emissions in the transformation of nitrogen throughout the composting system is rarely addressed. The present study explored the effect of microbial inoculants (MIs) and the contribution of different composted phases (solid, leachate, and gas) on NH3 emissions by constructing a co-composting system of kitchen waste and sawdust with and without the addition of MI. The results showed that NH3 emissions increased markedly after adding MIs, in which the contribution of leachate ammonia volatilization to NH3 emissions was most prominent. The core microorganisms of NH3 emission had a clear proliferation owing to the MIs reshaping community stochastic process. Also, MIs can strengthen the co-occurrence between microorganisms and functional genes of nitrogen to promote nitrogen metabolism. In particular, the abundances of nrfA, nrfH, and nirB genes, which could augment the dissimilatory nitrate reduction process, were increased, thus enhancing NH3 emissions. This study bolsters the fundamental, community-level understanding of nitrogen reduction treatments for agricultural.
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Affiliation(s)
- Houyu Li
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Lu Tan
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Wei Liu
- Department F.A. Forel for Environmental and Aquatic Sciences, Section of Earth and Environmental Sciences and Institute for Environmental Sciences, University of Geneva, Switzerland.
| | - Xiaojing Li
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Dandan Zhang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Yan Xu
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Department F.A. Forel for Environmental and Aquatic Sciences, Section of Earth and Environmental Sciences and Institute for Environmental Sciences, University of Geneva, Switzerland.
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Chen K, Yu C, Cai L, Zhang W, Xing Y, Yang Y. Bacterial community succession in aerobic-anaerobic-coupled and aerobic composting with mown hay affected C and N losses. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27572-3. [PMID: 37204571 DOI: 10.1007/s11356-023-27572-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 05/08/2023] [Indexed: 05/20/2023]
Abstract
The primary objective of this work was to investigate how the dominant microbial species change and affect C and N losses under aerobic and aerobic-anaerobic-coupled composting of mown hay (MH, ryegrass) and corn stover (CS) mix. Results showed that C and N losses in aerobic compost of MH-CS were significantly decreased by 19.57-31.47% and 29.04-41.18%, respectively. 16S rRNA gene sequencing indicated that the bacterial microbiota showed significant differences in aerobic and aerobic-anaerobic-coupled composting. LEfSe analyses showed that aerobic composting promoted the growth of bacteria related to lignocellulosic degradation and nitrogen fixation, while aerobic-anaerobic-coupled composting promoted the growth of bacteria related to denitrification. Correlation analysis between bacterial community and environmental factors indicated that moisture content (MC) was the most important environmental factor influencing the differentiation of bacterial growth. KEGG analysis showed that aerobic composting enhanced the amino acid, carbohydrate, and other advantageous metabolic functions compared to that of aerobic-anaerobic-coupled composting. As a conclusion, the addition of 10-20% corn stover (w/w) to new-mown hay (ryegrass) appeared to inhibit anaerobic composting and prompt aerobic composting in MH-CS mix, which led to the effective utilization of mown hay as a resource for composting.
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Affiliation(s)
- Kaishan Chen
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, 730070, People's Republic of China
| | - Chenxu Yu
- Department of Agriculture and Biosystem Engineering, Iowa State University, Ames, 50010, USA
| | - Liqun Cai
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, 730070, People's Republic of China
| | - Wenming Zhang
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, 730070, People's Republic of China.
| | - Yanhong Xing
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, 730070, People's Republic of China
| | - Yingxiang Yang
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, 730070, People's Republic of China
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Tran HT, Bolan NS, Lin C, Binh QA, Nguyen MK, Luu TA, Le VG, Pham CQ, Hoang HG, Vo DVN. Succession of biochar addition for soil amendment and contaminants remediation during co-composting: A state of art review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 342:118191. [PMID: 37210821 DOI: 10.1016/j.jenvman.2023.118191] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 05/13/2023] [Accepted: 05/15/2023] [Indexed: 05/23/2023]
Abstract
This paper aimed to highlight the succession of biochar addition for soil amendment and contaminants remediation during composting process. Biochar incorporated into the compost mixture promotes composting performance and enhances contaminants reduction. Co-composting with biochar for soil biota has been demonstrated via modified soil biological community abundance and diversity. On the other hand, adverse alterations to soil properties were noted, which had a negative impact on the communication of microbe-to-plant interactions within the rhizosphere. As a result, these changes influenced the competition between soilborne pathogens and beneficial soil microorganisms. Co-composting with biochar promoted the heavy metals (HMs) remediation efficiency in contaminated soils by around 66-95%. Notably, applying biochar during composting could improve nutrient retention and mitigate leaching. The adsorption of nutrients such as nitrogen and phosphorus compounds by biochar can be applied to manage environmental contamination and presents an excellent opportunity to enhance soil quality. Additionally, the various specific functional groups and large specific surface areas of biochar allow for excellent adsorption of persistent pollutants (e.g., pesticides, polychlorinated biphenyls (PCBs)) and emerging organic pollutants, such as microplastic, phthalate acid esters (PAEs) during co-composting. Finally, future perspectives, research gaps, and recommendations for further studies are highlighted, and potential opportunities are discussed.
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Affiliation(s)
- Huu-Tuan Tran
- Laboratory of Ecology and Environmental Management, Science and Technology Advanced Institute, Van Lang University, Ho Chi Minh City, 700000, Viet Nam; Faculty of Applied Technology, School of Technology, Van Lang University, Ho Chi Minh City, 700000, Viet Nam
| | - Nanthi S Bolan
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6001, Australia; School of Agriculture and Environment, The University of Western Australia, Perth, WA 6001, Australia
| | - Chitsan Lin
- Program in Maritime Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung, 81157, Taiwan; Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, 81157, Taiwan
| | - Quach An Binh
- Department of Academic Affair and Testing, Dong Nai Technology University, Bien Hoa, Dong Nai, 810000, Viet Nam
| | - Minh-Ky Nguyen
- Program in Maritime Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung, 81157, Taiwan; Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, 81157, Taiwan; Faculty of Environment and Natural Resources, Nong Lam University of Ho Chi Minh City, Hamlet 6, Linh Trung Ward, Thu Duc City, Ho Chi Minh City, 700000, Viet Nam.
| | - The Anh Luu
- Central Institute for Natural Resources and Environmental Studies, Vietnam National University, Hanoi, 111000, Viet Nam
| | - Van-Giang Le
- Central Institute for Natural Resources and Environmental Studies, Vietnam National University, Hanoi, 111000, Viet Nam
| | - Cham Q Pham
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City, 755414, Viet Nam
| | - Hong-Giang Hoang
- Faculty of Medicine, Dong Nai Technology University, Bien Hoa, Dong Nai, 810000, Viet Nam
| | - Dai-Viet N Vo
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City, 755414, Viet Nam.
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Chen Z, Zhang S, Li Y, Wang Y. Characteristics of denitrification activity, functional genes, and denitrifying community composition in the composting process of kitchen and garden waste. BIORESOURCE TECHNOLOGY 2023; 381:129137. [PMID: 37164228 DOI: 10.1016/j.biortech.2023.129137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/28/2023] [Accepted: 05/04/2023] [Indexed: 05/12/2023]
Abstract
N2O can be easily produced during the co-composting of kitchen waste (KW) and garden waste (GW). This study investigated the effects of the co-composting of KW and GW at different ratios (1:2, 1:1.5, 1:1, and 1.5:1) on the denitrifying activities, functional genes, and community composition of denitrifiers. The results showed that the denitrification activity of KW and GW at a 1:2 ratio was the lowest. The gene abundances of nirS, nirK, nosZI, and nosZII were high on days 12 and 28 under the four different ratios. Network analysis demonstrated that nosZ-type denitrifiers could construct a complex and reciprocal bacterial network to promote the reduction of N2O to N2. Mantel test results revealed that nirS-, nirK-, nosZI-, and nosZII-type denitrifiers were significantly positively correlated with pH, C/N, and moisture content. These findings demonstrated that composting with appropriate proportions of KW and GW could reduce N2O emissions caused by denitrification.
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Affiliation(s)
- Zhou Chen
- College of Harbour and Coastal Engineering, Jimei University, Xiamen 361021, People's Republic of China; Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Shenghua Zhang
- College of Harbour and Coastal Engineering, Jimei University, Xiamen 361021, People's Republic of China.
| | - Yanzeng Li
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Yuantao Wang
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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32
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Khairunisa BH, Loganathan U, Ogejo JA, Mukhopadhyay B. Nitrogen transformation processes catalyzed by manure microbiomes in earthen pit and concrete storages on commercial dairy farms. ENVIRONMENTAL MICROBIOME 2023; 18:32. [PMID: 37041573 PMCID: PMC10091836 DOI: 10.1186/s40793-023-00483-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 03/15/2023] [Indexed: 06/19/2023]
Abstract
Storing manure is an essential aspect of nutrient management on dairy farms. It presents the opportunity to use manure efficiently as a fertilizer in crop and pasture production. Typically, the manure storages are constructed as earthen, concrete, or steel-based structures. However, storing manure can potentially emit aerial pollutants to the atmosphere, including nitrogen and greenhouse gases, through microbial and physicochemical processes. We have characterized the composition of the microbiome in two manure storage structures, a clay-lined earthen pit and an aboveground concrete storage tank, on commercial dairy farms, to discern the nitrogen transformation processes, and thereby, inform the development of mitigation practices to preserve the value of manure. First, we analyzed the 16S rRNA-V4 amplicons generated from manure samples collected from several locations and depths (0.3, 1.2, and 2.1-2.75 m below the surface) of the storages, identifying a set of Amplicon Sequence Variant (ASVs) and quantifying their abundances. Then, we inferred the respective metabolic capabilities. These results showed that the manure microbiome composition was more complex and exhibited more location-to-location variation in the earthen pit than in the concrete tank. Further, the inlet and a location with hard surface crust in the earthen pit had unique consortia. The microbiomes in both storages had the potential to generate ammonia but lacked the organisms for oxidizing it to gaseous compounds. However, the microbial conversion of nitrate to gaseous N2, NO, and N2O via denitrification and to stable ammonia via dissimilatory nitrite reduction seemed possible; minor quantities of nitrate was present in manure, potentially originating from oxidative processes occurring on the barn floor. The nitrate-transformation linked ASVs were more prevalent at the near-surface locations and all depths of the inlet. Anammox bacteria and archaeal or bacterial autotrophic nitrifiers were not detected in either storage. Hydrogenotrophic Methanocorpusculum species were the primary methanogens or methane producers, exhibiting higher abundance in the earthen pit. These findings suggested that microbial activities were not the main drivers for nitrogen loss from manure storage, and commonly reported losses are associated with the physicochemical processes. Finally, the microbiomes of stored manure had the potential to emit greenhouse gases such as NO, N2O, and methane.
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Affiliation(s)
- Bela Haifa Khairunisa
- Genetics, Bioinformatics, and Computational Biology Ph.D. Program, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Usha Loganathan
- Department of Biochemistry, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Jactone A Ogejo
- Department of Biological System Engineering, Blacksburg, VA, 24061, USA.
| | - Biswarup Mukhopadhyay
- Genetics, Bioinformatics, and Computational Biology Ph.D. Program, Virginia Tech, Blacksburg, VA, 24061, USA.
- Department of Biochemistry, Virginia Tech, Blacksburg, VA, 24061, USA.
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33
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Piao M, Li A, Du H, Sun Y, Du H, Teng H. A review of additives use in straw composting. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:57253-57270. [PMID: 37012566 DOI: 10.1007/s11356-023-26245-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 02/27/2023] [Indexed: 05/10/2023]
Abstract
Straw composting is not only a process of decomposition and re-synthesis of organic matter, but also a process of harmless treatment, avoiding air pollution caused by straw burning. Many factors, including raw materials, humidity, C/N, and microbial structure, may determine the composting process and the quality of final product. In recent years, many researches have focused on composting quality improvement by adding one or more exogenous substances, including inorganic additives, organic additives, and microbial agents. Although a few review publications have compiled the research on the use of additives in composting, none of them has specifically addressed the composting of crop straw. Additives used in straw composting can increase degradation of recalcitrant substances and provide ideal living surroundings for microorganism, and thus reduce nitrogen loss and promote humus formation, etc. This review's objective is to critically evaluate the impact of various additives on straw composting process, and analyze how these additives enhance final quality of composting. Furthermore, a vision for future perspectives is provided. This paper can serve as a reference for straw composting process optimization and composting end-product improvement.
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Affiliation(s)
- Mingyue Piao
- Key Laboratory of Environmental Materials and Pollution Control, Education Department of Jilin Province, Jilin Normal University, Siping, China
- College of Engineering, Jilin Normal University, Siping, China
| | - Ang Li
- College of Engineering, Jilin Normal University, Siping, China
| | - Huishi Du
- College of Tourism and Geographical Science, Jilin Normal University, Siping, China
| | - Yuwei Sun
- Key Laboratory of Environmental Materials and Pollution Control, Education Department of Jilin Province, Jilin Normal University, Siping, China
- College of Engineering, Jilin Normal University, Siping, China
| | - Hongxue Du
- Key Laboratory of Environmental Materials and Pollution Control, Education Department of Jilin Province, Jilin Normal University, Siping, China
| | - Honghui Teng
- Key Laboratory of Environmental Materials and Pollution Control, Education Department of Jilin Province, Jilin Normal University, Siping, China.
- College of Engineering, Jilin Normal University, Siping, China.
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Zhou Y, Ren X, Tsui TH, Barcelo D, Wang Q, Zhang Z, Yongzhen D. Microplastics as an underestimated emerging contaminant in solid organic waste and their biological products: Occurrence, fate and ecological risks. JOURNAL OF HAZARDOUS MATERIALS 2023; 445:130596. [PMID: 37055952 DOI: 10.1016/j.jhazmat.2022.130596] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/24/2022] [Accepted: 12/10/2022] [Indexed: 06/19/2023]
Abstract
Microplastics (MPs), as an emerging pollutant, have been widely detected in aquatic, terrestrial, and atmospheric ecosystems. Recently, more researchers indicated that solid organic waste is also a crucial repository of MPs and has become a vital pollution source in ecosystems. Although the occurrence and fate of MPs in solid organic waste and the interaction between MPs and biological treatments have been explored, there still needs to be comprehensive summaries. Hence, this study reviewed the occurrence and characteristics of MPs in solid organic waste and organic fertilizers. Meanwhile, this study summarized the influence of MPs on biological treatments (composting and anaerobic digestion) and their degradation characteristics. MPs are abundant in solid organic waste (0-220 ×103 particles/kg) and organic fertilizer (0-30 ×103 particles/kg), PP and PE are the prominent MPs, and fibers and fragments are the main shapes. MPs can affect the carbon and nitrogen conversion during biological treatments and interfere with microbial communities. The MP's characteristics changed after biological treatments, which should further consider their potential ecological risks. This review points out the existing problems of MPs in organic waste recycling and provides directions for their treatment in the future.
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Affiliation(s)
- Yanting Zhou
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Xiuna Ren
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - To-Hung Tsui
- NUS Environment Research Institute, National University of Singapore, 5A Engineering Drive 1, 117411, Singapore
| | - Damia Barcelo
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona, 18-26, 08034 Barcelona, Spain
| | - Quan Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Ding Yongzhen
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China.
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35
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Tong Z, Liu F, Sun B, Tian Y, Zhang J, Duan J, Bi W, Qin J, Xu S. Effect of biochars with different particle sizes on fates of antibiotics and antibiotic resistance genes during composting of swine manure. BIORESOURCE TECHNOLOGY 2023; 370:128542. [PMID: 36581235 DOI: 10.1016/j.biortech.2022.128542] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 12/23/2022] [Accepted: 12/25/2022] [Indexed: 06/17/2023]
Abstract
The impact of biochars with large particle sizes (LPB, 5-10 mm) and small particle sizes (SPB, <0.074 mm) on fates of antibiotics and antibiotic resistance genes (ARGs) during composting of swine manure with maize straw was explored. The results showed that antibiotics removal efficiencies were 40 %, 50 %, and 76 % for control treatment, control with LPB treatment, and control with SPB treatment after composting, respectively. The introduction of SPB reduced the total ARGs and mobile genetic elements (MGEs) levels by 28 % and 19 % after composting, respectively. The Mantel test results showed that organic matter, moisture content, and NH4+-N contributed the most to changes in antibiotics and ARGs. The significant effects of biochar specific surface area and antibiotics on MGEs further regulated the behavior of ARGs. Therefore, composting with SPB is more conducive to the removal of antibiotics and ARGs during composting of swine manure.
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Affiliation(s)
- Zhenye Tong
- College of Resources and Environment, Shanxi Agricultural University, Jinzhong, Shanxi 030801, PR China
| | - Fenwu Liu
- College of Resources and Environment, Shanxi Agricultural University, Jinzhong, Shanxi 030801, PR China.
| | - Bo Sun
- College of Resources and Environment, Shanxi Agricultural University, Jinzhong, Shanxi 030801, PR China
| | - Yu Tian
- College of Resources and Environment, Shanxi Agricultural University, Jinzhong, Shanxi 030801, PR China
| | - Jingzhi Zhang
- College of Resources and Environment, Shanxi Agricultural University, Jinzhong, Shanxi 030801, PR China
| | - Jiaze Duan
- Nongshengyuan Family Farm, Jinzhong, Shanxi 030801, PR China
| | - Wenlong Bi
- College of Resources and Environment, Shanxi Agricultural University, Jinzhong, Shanxi 030801, PR China
| | - Junmei Qin
- College of Resources and Environment, Shanxi Agricultural University, Jinzhong, Shanxi 030801, PR China
| | - Shaozu Xu
- College of Resources and Environment, Shanxi Agricultural University, Jinzhong, Shanxi 030801, PR China
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36
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Shan G, Li W, Liu J, Zhu L, Hu X, Yang W, Tan W, Xi B. Nitrogen loss, nitrogen functional genes, and humification as affected by hydrochar addition during chicken manure composting. BIORESOURCE TECHNOLOGY 2023; 369:128512. [PMID: 36538962 DOI: 10.1016/j.biortech.2022.128512] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
This study investigated the effect of hydrochar addition on nitrogen (N) transformation, N functional genes, and humification during chicken manure composting. The addition of 10 % hydrochar reduced cumulative ammonia (NH3) and nitrous oxide emissions by 55.24 % and 45.30 %, respectively, and N losses by 32.07 %. Further, it increased the relative abundance of amoA while decreasing that of nirK, nirS, and nosZ in compost. Hydrochar reduces NH3 emissions during composting owing to its acid-carbon properties that lower the pH of the composting pile and promote ammonia oxidation. Moreover, hydrochar addition enhances the humification of the composting pile and significantly increases the content of humic substances. Moreover, after hydrochar addition, the germination index of the compost product reached >80 % 10 days earlier. The results demonstrate that hydrochar is a suitable composting additive for reducing N loss and shortening the composting time.
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Affiliation(s)
- Guangchun Shan
- State Key Laboratory of Environmental Criteria and Risk Assessment, and State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Weiguang Li
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jie Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Lin Zhu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Xinhao Hu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Wei Yang
- China Land Surveying and Planning Institute, Beijing 100035, China
| | - Wenbing Tan
- State Key Laboratory of Environmental Criteria and Risk Assessment, and State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Beidou Xi
- State Key Laboratory of Environmental Criteria and Risk Assessment, and State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
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37
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Pang L, Huang Z, Yang P, Wu M, Zhang Y, Pang R, Jin B, Zhang R. Effects of biochar on the degradation of organophosphate esters in sewage sludge aerobic composting. JOURNAL OF HAZARDOUS MATERIALS 2023; 442:130047. [PMID: 36194960 DOI: 10.1016/j.jhazmat.2022.130047] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 09/09/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
In this study, the impact of biochar on the degradation of organophosphate esters (OPEs) during the aerobic composting of sewage sludge was investigated. Three treatments were conducted with different percentages of biochar in the compost, including 5 %, 10 %, and 20 %. The treatment with 10 % of biochar showed the longest thermophilic phase compared to that of 5 % and 20 % of biochar, which greatly promoted the decomposition of organic matter. In addition, the degradation rate of the hard-to-degrade chlorinated-OPEs was significantly increased by 10 % biochar, reaching to 57.2 %. Correspondingly, approximately 43.6 % of the total concentration of OPEs (Σ6OPEs) was eliminated in the presence of 10 % of biochar, which was higher than the treatments with 5 % and 20 % of biochar. Biochar significantly influenced the microbial community structure of compost, but the previously reported organophosphorus-degrading bacteria did not play a major role in the degradation of OPEs. The redox ability of the increased oxygen-containing functional groups such as quinone on the surface of biochar and the biochar-mediated electron transfer ability may play an essential role in the degradation of OPEs during the composting process.
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Affiliation(s)
- Long Pang
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China.
| | - Ziling Huang
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Peijie Yang
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Mingkai Wu
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Yanyan Zhang
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Rong Pang
- Department of Medicine, Huanghe Science and Technology College, Zhengzhou, Henan, 450001, China
| | - Baodan Jin
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Ruiming Zhang
- College of Chemistry and Materials, Longyan University, Fujian 364012, China
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38
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Gou Z, Zheng H, He Z, Su Y, Chen S, Chen H, Chen G, Ma NL, Sun Y. The combined action of biochar and nitrogen-fixing bacteria on microbial and enzymatic activities of soil N cycling. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 317:120790. [PMID: 36460190 DOI: 10.1016/j.envpol.2022.120790] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 11/04/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
This study aims to investigate the positive effects of the combined use of Enterobacter cloacae and biochar on improving nitrogen (N) utilization. The greenhouse pots experimental results showed the synergy of biochar and E. cloacae increased soil total N content and plant N uptake by 33.54% and 15.1%, respectively. Soil nitrogenase (NIT) activity increased by 253.02%. Ammonia monooxygenase (AMO) and nitrate reductase (NR) activity associated with nitrification and denitrification decreased by 10.94% and 29.09%, respectively. The relative abundance of N fixing microorganisms like Burkholderia and Bradyrhizobium significantly increased. Sphingomonas and Ottowia, two bacteria involved in the nitrification and denitrification processes, were found to be in lower numbers. The E. cloacae's ability to fix N2 and promote the growth of plants allow the retention of N in soil and make more N available for plant development. Biochar served as a reservoir of N for plants by adsorbing N from the soil and providing a shelter for E. cloacae. Thus, biochar and E. cloacae form a synergy for the management of agricultural N and the mitigation of negative impacts of pollution caused by excessive use of N fertilizer.
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Affiliation(s)
- Zechang Gou
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Sciences, Jilin Agricultural University, Changchun, 130118, China
| | - Haoyu Zheng
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Sciences, Jilin Agricultural University, Changchun, 130118, China
| | - Ziqi He
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Sciences, Jilin Agricultural University, Changchun, 130118, China
| | - Yingjie Su
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Sciences, Jilin Agricultural University, Changchun, 130118, China
| | - Siji Chen
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Sciences, Jilin Agricultural University, Changchun, 130118, China
| | - Huan Chen
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Sciences, Jilin Agricultural University, Changchun, 130118, China
| | - Guang Chen
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Sciences, Jilin Agricultural University, Changchun, 130118, China
| | - Nyuk Ling Ma
- Faculty of Science and Marine Environment, University Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Yang Sun
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Sciences, Jilin Agricultural University, Changchun, 130118, China.
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39
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Yang Q, Zhang S, Li X, Rong K, Li J, Jiang L. Effects of microbial inoculant and additives on pile composting of cow manure. Front Microbiol 2023; 13:1084171. [PMID: 36687613 PMCID: PMC9850233 DOI: 10.3389/fmicb.2022.1084171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 12/13/2022] [Indexed: 01/06/2023] Open
Abstract
Composting is an effective method of recycling organic solid waste, and it is the key process linking planting with recycling. To explore the reuse of agricultural organic solid waste as a resource in the Yellow River Delta, the effects of microbial inoculant and different additives (calcium superphosphate, biochar, tomato straw, rice husk, and sugar residue) on pile composting of cow dung were studied to obtain the best composting conditions. The results showed that microbial inoculant and additives all played positive roles in the process of aerobic composting, and the experimental groups outperformed the control groups without any additives. For discussion, the microbial inoculant promoted rapid pile body heating more than the recovery materials alone, and the effects on aerobic composting were related to the organic matter of substrates and biochar. After being composted, all the materials were satisfactorily decomposed. Degradation of additives into humic acid might serve as electron shuttles to promote thorough organic matter decomposition. These results provide a scientific basis data for industrial composting of organic solid waste processed by on-site stacking, and provide a reference for researcher and practitioners for studying the applications of microbial inoculant on aerobic composting.
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Affiliation(s)
- Qian Yang
- College of Biological and Environmental Engineering, Binzhou University, Binzhou, China
- Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou, China
| | - Shiqiu Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, China
| | - Xueping Li
- College of Biological and Environmental Engineering, Binzhou University, Binzhou, China
- Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou, China
| | - Kun Rong
- College of Biological and Environmental Engineering, Binzhou University, Binzhou, China
| | - Jialiang Li
- College of Biological and Environmental Engineering, Binzhou University, Binzhou, China
| | - Lihua Jiang
- College of Resources and Environmental Engineering, Shandong Agricultural and Engineering University, Jinan, China
- Binzhou Jingyang Biological Fertilizer Co., Ltd., Binzhou, China
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Gong X, Zou L, Wang L, Zhang B, Jiang J. Biochar improves compost humification, maturity and mitigates nitrogen loss during the vermicomposting of cattle manure-maize straw. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 325:116432. [PMID: 36274337 DOI: 10.1016/j.jenvman.2022.116432] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 09/22/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
Maintaining humidification and inhibiting nitrogen losses during vermicomposting process have emerged to be key factors for high-quality productions. Previous data have showed outstanding functions of biochar addition in improving vermicomposting quality. In this study, the influence of bamboo biochar (BB) and rice husk biochar (RHB) addition on compost maturity, humification and nitrogen loss was evaluated in the vermicomposting of cattle manure and maize straw. Results revealed that BB or RHB amendment improved organic matter decomposition, enhanced humification and maturity of compost, particularly in the 10% BB treatment, which exerted the highest humic acids content and GI value. Furthermore, BB or RHB addition significantly reduced nitrogen losses, in which the volatilization of NH3 and N2O were reduced by 24.93%-66.23% and 14.91%-55.12%. The fewest nitrogen loss was detected in the treatment of 10% BB. Biochar inhibited nirK, nirS but promoted AOB-amoA, nosZ expression; fewer N2O producing bacteria (Pseudomonas, Devosia, Luteimonas genus) were observed in the biochar treatment, and thereby decreased the N2O emission. Therefore, 10% BB addition for co-vermicomposting cattle manure and maize straw is an efficient way to increase humification, maturity, and reduce nitrogen loss, and future applications following this strategy is believed to generate better productions.
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Affiliation(s)
- Xiaoqiang Gong
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Lan Zou
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Li Wang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, China.
| | - Bo Zhang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Junxian Jiang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
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Deng L, Liu W, Chang N, Sun L, Zhang J, Bello A, Uzoamaka Egbeagu U, Shi S, Sun Y, Xu X. Disentangling the coupling relationships between functional denitrifiers and nitrogen transformation during cattle-manure and biochar composting: A novel perspective. BIORESOURCE TECHNOLOGY 2023; 367:128235. [PMID: 36332857 DOI: 10.1016/j.biortech.2022.128235] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/24/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
This study explored the coupling relationships between denitrifiers and N-transformation using multi-level (DNA, RNA and enzyme) and multi-aspect (abundance, diversity, structure, key community, network pattern, and functional module) analyses during cattle-manure (CM) and biochar (CMB) composting. Amino sugar-N (ASN, 0.914) and hydrolysable unknown-N (-0.724) were main organic-N components mediating NH4+-N in CM and CMB, respectively. Biochar lowered nirK, nirS, and nosZ genes copies, up-regulated nir gene transcripts, and inhibited nitrite reductase (NIR) activity. For nirK-denitrifiers, Luteimonas was predominant taxa influencing NO2--N and amino acid-N (AAN). Unclassified_k_norank_d_Bacteria and unclassified_p_Proteobacteria regulated NO3--N and ASN, respectively. These three genera played crucial roles in mediating NIR activity and nosZ/nirK. For nirS-denitrifiers, Paracoccus and Pseudomonas mediated NH4+-N and AAN, respectively, and they were vital genera regulating NO3--N, ASN and NIR activity. Furthermore, nirK-denitrifiers was major contributor to denitrification. Overall, functional denitrifiers might simultaneously participate in multiple N-transformation processes.
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Affiliation(s)
- Liting Deng
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Wanying Liu
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Nuo Chang
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Lei Sun
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Jizhou Zhang
- Institute of Natural Resources and Ecology, Heilongjiang Academy of Sciences, Harbin 150040, China
| | - Ayodeji Bello
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Ugochi Uzoamaka Egbeagu
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Shuai Shi
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Yu Sun
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Xiuhong Xu
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China.
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Holatko J, Hammerschmiedt T, Kucerik J, Baltazar T, Radziemska M, Havlicek Z, Kintl A, Jaskulska I, Malicek O, Brtnicky M. Soil Properties and Maize Yield Improvement with Biochar-Enriched Poultry Litter-Based Fertilizer. MATERIALS (BASEL, SWITZERLAND) 2022; 15:9003. [PMID: 36556809 PMCID: PMC9785905 DOI: 10.3390/ma15249003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/07/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
Conversion of poultry litter into fertilizer presents an environmentally friendly way for its disposal. The amendment of stabilizing sorption materials (e.g., biochar) to broiler chicken rearing seems promising, as it protects produced litter from nutrient losses and improves fertilizing efficacy. Thus, a pot experiment was carried out with maize and organic fertilizers produced from biochar-amended chicken bedding. The properties of three types of poultry-matured litter, amended with biochar at 0%, 10% and 20% dose, were analyzed. These matured litters were added to soil and physicochemical, biological properties and dry aboveground crop biomass yield were determined. Both biochar doses improved matured litter dry matter (+29%, +68% compared to unamended litter) and organic carbon (+5%, +9%). All three fertilizers significantly increased dry plant aboveground biomass yield (+3% and +42% compared to control litter-treated variant) and N-acetyl-β-D-glucosaminidase activity (+51%, +57%) compared to unamended control soil. The 20% biochar poultry-matured litter derived the highest dry plant aboveground biomass, highest respiration induced by D-glucose (+53%) and D-mannose (+35%, compared to control litter-treated variant), and decreased pH (-6% compared to unamended control). Biochar-derived modification of poultry litter maturation process led to organic fertilizer which enhanced degradation of soil organic matter in the subsequently amended soil. Furthermore, this type of fertilizer, compared to conventional unamended litter-based type, increased microbial activity, nutrient availability, and biomass yield of maize in selected biochar doses, even under conditions of significant soil acidification.
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Affiliation(s)
- Jiri Holatko
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
- Agrovyzkum Rapotin, Ltd., Vyzkumniku 267, 788 13 Rapotin, Czech Republic
| | - Tereza Hammerschmiedt
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
| | - Jiri Kucerik
- Faculty of Chemistry, Institute of Chemistry and Technology of Environmental Protection, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic
| | - Tivadar Baltazar
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
| | - Maja Radziemska
- Institute of Environmental Engineering, Warsaw University of Life Sciences, 02-787 Warsaw, Poland
| | - Zdenek Havlicek
- Department of Animal Morphology, Physiology and Genetics, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
| | - Antonin Kintl
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
- Agricultural Research, Ltd., Zahradni 1, 664 41 Troubsko, Czech Republic
| | - Iwona Jaskulska
- Faculty of Agriculture and Biotechnology Bydgoszcz, Bydgoszcz University of Science and Technology, 85-796 Bydgoszcz, Poland
| | - Ondrej Malicek
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
| | - Martin Brtnicky
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
- Faculty of Chemistry, Institute of Chemistry and Technology of Environmental Protection, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic
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Zhu P, Wu Y, Ru Y, Hou Y, San KW, Yu X, Guo W. Industrial-scale aerobic composting of livestock manures with the addition of biochar: Variation of bacterial community and antibiotic resistance genes caused by various composting stages. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 314:120270. [PMID: 36162559 DOI: 10.1016/j.envpol.2022.120270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/04/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
The presence of large amounts of antibiotic resistance genes (ARGs) in livestock manures poses an impending, tough safety risk to ecosystems. To investigate more comprehensively the mechanisms of ARGs removal from industrial-scale composting of livestock manure based on biochar addition, we tracked the dynamics of bacterial community and ARGs at various stages of aerobic composting of livestock manures with 10% biochar. There were no significant effects of biochar on the bacterial community and the profiles of ARGs. During aerobic composting, the relative abundance of ARGs and mobile genetic elements (MGEs) showed overall trends of decreasing and then increasing. The key factor driving the dynamics of ARGs was bacterial community composition, and the potential hosts of ARGs were Caldicoprobacter, Tepidimicrobium, Ignatzschineria, Pseudogracilibacillus, Actinomadura, Flavobacterium and Planifilum. The retention of the thermophilic bacteria and the repopulation of the initial bacteria were the dominant reasons for the increase in ARGs at maturation stage. Additionally, among the MGEs, the relative abundance of transposon gene was substantially removed, while the integron genes remained at high relative abundance. Our results highlighted that the suitability of biochar addition to industrial-scale aerobic composting needs to be further explored and that effective measures are needed to prevent the increase of ARGs content on maturation stage.
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Affiliation(s)
- Pengcheng Zhu
- Key Laboratory of Ecological Prewarning, Protection and Restoration of Bohai Sea, Ministry of Natural Resources, School of Life Sciences, Shandong University, Qingdao, 266237, PR China
| | - Yuxin Wu
- Key Laboratory of Ecological Prewarning, Protection and Restoration of Bohai Sea, Ministry of Natural Resources, School of Life Sciences, Shandong University, Qingdao, 266237, PR China
| | - Yuning Ru
- Key Laboratory of Ecological Prewarning, Protection and Restoration of Bohai Sea, Ministry of Natural Resources, School of Life Sciences, Shandong University, Qingdao, 266237, PR China
| | - Yihang Hou
- Key Laboratory of Ecological Prewarning, Protection and Restoration of Bohai Sea, Ministry of Natural Resources, School of Life Sciences, Shandong University, Qingdao, 266237, PR China
| | - Kim Woon San
- Tounong Organic Fertilizer Co. Ltd., Qingdao, 266733, PR China
| | - Xiaona Yu
- Key Laboratory of Ecological Prewarning, Protection and Restoration of Bohai Sea, Ministry of Natural Resources, School of Life Sciences, Shandong University, Qingdao, 266237, PR China
| | - Weihua Guo
- Key Laboratory of Ecological Prewarning, Protection and Restoration of Bohai Sea, Ministry of Natural Resources, School of Life Sciences, Shandong University, Qingdao, 266237, PR China.
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Qi C, Yin R, Cheng J, Xu Z, Chen J, Gao X, Li G, Nghiem L, Luo W. Bacterial dynamics for gaseous emission and humification during bio-augmented composting of kitchen waste with lime addition for acidity regulation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 848:157653. [PMID: 35926596 DOI: 10.1016/j.scitotenv.2022.157653] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/22/2022] [Accepted: 07/22/2022] [Indexed: 06/15/2023]
Abstract
This study investigated the impacts of lime addition and further microbial inoculum on gaseous emission and humification during kitchen waste composting. High-throughput sequencing was integrated with Linear Discriminant Analysis Effect Size (LEfSe) and Functional Annotation of Prokaryotic Taxa (FAPROTAX) to decipher bacterial dynamics in response to different additives. Results showed that lime addition enriched bacteria, such as Taibaiella and Sphingobacterium as biomarkers, to strengthen organic biodegradation toward humification. Furthermore, lime addition facilitated the proliferation of thermophilic bacteria (e.g. Bacillus and Symbiobacterium) for aerobic chemoheterotrophy, leading to enhanced organic decomposition to trigger notable gaseous emission. Such emission profile was further exacerbated by microbial inoculum to lime-regulated condition given the rapid enrichment of bacteria (e.g. Caldicoprobacter and Pusillimonas as biomarkers) for fermentation and denitrification. In addition, microbial inoculum slightly hindered humus formation by narrowing the relative abundance of bacteria for humification. Results from this study show that microbial inoculum to feedstock should be carefully regulated to accelerate composting and avoid excessive gaseous emission.
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Affiliation(s)
- Chuanren Qi
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Rongrong Yin
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Jingwen Cheng
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Zhicheng Xu
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Jie Chen
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Xingzu Gao
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Guoxue Li
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Long Nghiem
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Wenhai Luo
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China.
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Zhang S, Zhong B, An X, Han Y, Xiao X, Zhang Q. Effect of moisture content on the evolution of bacterial communities and organic matter degradation during bioaugmented biogas residues composting. World J Microbiol Biotechnol 2022; 39:1. [PMID: 36344669 DOI: 10.1007/s11274-022-03454-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 11/01/2022] [Indexed: 11/09/2022]
Abstract
Composting is an excellent way to recycle biogas residues into a stable, non-toxic agricultural end product. In this study, the dynamic changes of physical-chemical parameters and bacterial community in three groups of bioaugmentation composting systems at different moisture contents (MC) of 50% (MC50), 60% (MC60) and 70% (MC70) were monitored. The differences of bacterial communities in composts with different initial MC were compared, and the interaction between biological and non-biological parameters was also explored. The results revealed that after 30 days of composting, the biogas residues compost in MC60 reached highest temperature of 64 °C, total Kjeldahl nitrogen (TKN) of 2%, seed germination index (GI) of 110%, and the longest thermophilic period duration of 5 days (55 °C). Additionally, the result of high-throughput sequencing showed that the diversity of bacterial communities in MC60 was the highest, and the abundance of Actinobacteria (16.93-52.63%), Firmicutes (8.71-56.75%), and Proteobacteria (16.88-46.95%) in all groups were the highest at phylum level. The LEfSe analysis indicated that the abundance of Ochrobactrum and Cellulomonadaceae in MC60 was significantly (p < 0.05) higher than with other treatments. Moreover, canonical correspondence analysis (CCA) indicated thermophilic period duration is significantly (p < 0.05) positively correlated with Paenibacillus. Besides, it was found the relative abundance of Nocardiopsis and Georgenia has a significant (p < 0.01) correlation with the fertilizer efficiency of compost. These results showed that controlling the initial moisture content at 60% can improve the maturity and fertilizer efficiency of compost, and enable the bacteria beneficial to composting to gain the advantage of proliferation.
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Affiliation(s)
- Shulin Zhang
- College of Bioscience and Bioengineering, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Jiangxi Agricultural University, Nanchang, 330045, People's Republic of China
| | - Bin Zhong
- College of Bioscience and Bioengineering, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Jiangxi Agricultural University, Nanchang, 330045, People's Republic of China
| | - Xuejiao An
- College of Bioscience and Bioengineering, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Jiangxi Agricultural University, Nanchang, 330045, People's Republic of China
| | - Yanyan Han
- College of Bioscience and Bioengineering, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Jiangxi Agricultural University, Nanchang, 330045, People's Republic of China
| | - Xiaoshuang Xiao
- College of Bioscience and Bioengineering, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Jiangxi Agricultural University, Nanchang, 330045, People's Republic of China
| | - Qinghua Zhang
- College of Bioscience and Bioengineering, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Jiangxi Agricultural University, Nanchang, 330045, People's Republic of China.
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Wu X, Amanze C, Yu Z, Li J, Liu Y, Shen L, Yu R, Wu X, Xu X, Tan S, Zeng W. Evaluation of fungal community assembly and function during food waste composting with Aneurinibacillus sp. LD3 inoculant. BIORESOURCE TECHNOLOGY 2022; 363:127923. [PMID: 36096323 DOI: 10.1016/j.biortech.2022.127923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/04/2022] [Accepted: 09/05/2022] [Indexed: 06/15/2023]
Abstract
The objective of this work was to evaluate the fungal community assembly and function during food waste composting with Aneurinibacillus sp. LD3 (LD3) inoculant. Inoculation reduced the content of total organic carbon, moisture content, nitrate nitrogen, and nitrite nitrogen. The LD3 inoculant was able to drive the changes in the assembly of the fungal community. In particular, inoculation with LD3 not only increased the relative abundance of Ascomycota and Trichocomaceae_unclassified for lignocellulose degradation at the mesophilic and cooling stages but also reduced the relative abundances of the opportunistic human pathogen Candida. Saprotroph was the predominant fungal trophic mode in composting, and inoculation with LD3 has a better inactivation effect on animal and plant pathogenic fungi during composting. Furthermore, the variation of the fungal community after inoculation with LD3 was the largest explained by temperature (30.64%). These results implied that LD3 significantly regulated fungal composition and function of food waste composting.
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Affiliation(s)
- Xiaoyan Wu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Charles Amanze
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Zhaojing Yu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Jiaokun Li
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Yuandong Liu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Li Shen
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Runlan Yu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Xueling Wu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Xuewen Xu
- Hunan Tevos Ecological Technology Co, Ltd, Changsha 410083, China; Hunan Biological Fertilizer Engineering Technology Research Center, Changsha 410083, China
| | - Shiyong Tan
- Hunan Tevos Ecological Technology Co, Ltd, Changsha 410083, China; Hunan Biological Fertilizer Engineering Technology Research Center, Changsha 410083, China
| | - Weimin Zeng
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China.
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Li H, Wei Z, Song C, Chen X, Zhang R, Liu Y. Functional keystone drive nitrogen conversion during different animal manures composting. BIORESOURCE TECHNOLOGY 2022; 361:127721. [PMID: 35914672 DOI: 10.1016/j.biortech.2022.127721] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
In this study, nitrogen transformation of chicken manure (CM) and cattle dung (CD) during composting was analyzed and its related functional keystones were identified. The results showed that chicken manure showed more severe nitrogen conversion during composting. The main N conversion factors in cattle dung were nitrite nitrogen (NO2--N) and ammonium nitrogen (NH4+-N), while the main N conversion factors in chicken manure were NH4+-N and nitrate nitrogen (NO3--N). The nitrogen-transforming bacterial community in chicken manure was more diverse. Variations in functional keystone abundances in cattle dung tended to be confined to the cooling and maturation periods, whereas changes in chicken manure persisted throughout the composting process. Environmental factors affected the functional keystones of nitrogen transformation. This study may provide directions for regulating nitrogen conversion in animal manure composting.
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Affiliation(s)
- Huiying Li
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Zimin Wei
- College of Life Science, Northeast Agricultural University, Harbin 150030, China.
| | - Caihong Song
- College of Life Science, Liaocheng University, Liaocheng 252000, China
| | - Xiaomeng Chen
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Ruju Zhang
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Yumeng Liu
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
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48
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Ding S, Huang W, Xu W, Wu Y, Zhao Y, Fang P, Hu B, Lou L. Improving kitchen waste composting maturity by optimizing the processing parameters based on machine learning model. BIORESOURCE TECHNOLOGY 2022; 360:127606. [PMID: 35835416 DOI: 10.1016/j.biortech.2022.127606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/04/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
As a novel analytical method based on big data, machine learning model can explore the relationship between different parameters and draw universal conclusions, which was used to predict composting maturity and identify key parameters in this study. The results showed that the Stacking model exhibited excellent prediction accuracy. SHapley Additive exPlanations (SHAP) and Partial Dependence Analysis (PDA) were performed to evaluate the importance of different parameters as well as their optimal interval. Optimal starting conditions should be maintained in the mesophilic state (temperature: 30-45℃, moisture content: 55-65%, pH: 6.3-8.0), and nutrients (total nitrogen > 2.3%, total organic carbon > 35%) should be adjusted in the thermophilic state. Experiments revealed that model-based optimization strategies could improve composting maturity because they could optimize compost microbial flora and perform complex carbon cycle functions. In conclusion, this study provides new insights into the enhancement of the composting process.
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Affiliation(s)
- Shang Ding
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, PR China
| | - Wuji Huang
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, PR China
| | - Weijian Xu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, PR China
| | - Yiqu Wu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, PR China
| | - Yuxiang Zhao
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, PR China
| | - Ping Fang
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, PR China
| | - Baolan Hu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, PR China
| | - Liping Lou
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, PR China.
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49
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Wu X, Amanze C, Yu R, Li J, Wu X, Shen L, Liu Y, Yu Z, Wang J, Zeng W. Insight into the microbial mechanisms for the improvement of composting efficiency driven by Aneurinibacillus sp. LD3. BIORESOURCE TECHNOLOGY 2022; 359:127487. [PMID: 35724906 DOI: 10.1016/j.biortech.2022.127487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 06/13/2022] [Accepted: 06/14/2022] [Indexed: 06/15/2023]
Abstract
This work explored the microbial mechanisms for the improvement of composting efficiency driven by thermotolerant lignin-degrading bacterium Aneurinibacillus sp. LD3 (LD3). Results showed that LD3 inoculant prolonged the thermophilic period by 4 days, improved the final content of humic acid, total phosphorus (TP), nitrogen, potassium and seed germination index. Inoculating LD3 enhanced the relative abundance of thermotolerant and phosphate-solubilizing microbes including the phyla of Proteobacteria, Bacteroidota, Firmicutes, and Actinobacteriota, and the genus of Bacillus, Thermoactinomyces, and Pseudomonas. Metabolic function analysis showed that sequences involved in carbohydrate and amino acid metabolism were boosted, while sequences associated with human disease were reduced after inoculating LD3. Spearman correlation analysis revealed that Aneurinibacillus has a significant positive correlation with temperature, TP, Bacillus, and Thermoactinomyces. This study provides useful information for understanding the microbial mechanisms of LD3 promoting composting efficiency, and reveals the tremendous potential of LD3 in the resource utilization of organic solid wastes.
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Affiliation(s)
- Xiaoyan Wu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Charles Amanze
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Runlan Yu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Jiaokun Li
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Xueling Wu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Li Shen
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Yuandong Liu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Zhaojing Yu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Jingshu Wang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Weimin Zeng
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China.
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50
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Dai X, Wang X, Gu J, Song Z, Guo H, Shi M, Li H. Mechanism associated with the positive effect of nanocellulose on nitrogen retention in a manure composting system. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 316:115308. [PMID: 35658259 DOI: 10.1016/j.jenvman.2022.115308] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 05/10/2022] [Accepted: 05/12/2022] [Indexed: 06/15/2023]
Abstract
Additives can play important roles in effectively inhibiting nitrogen losses during livestock manure composting due to the activities of microbes. This study investigated the effects of adding nanocellulose at 300 mg/kg, 600 mg/kg, and 900 mg/kg (NC900) on nitrogen conversion, nitrogen conversion functional genes, and related microorganisms during composting. The results showed that compared with the control, nanocellulose hindered the ammoniation reaction. In addition, NC900 promoted nitrification, interfered with the denitrification process, and reduced the abundance of the nirK gene, thereby increasing the nitrate nitrogen content and decreasing ammonia spillover. NC900 promoted nitrogen fixation by increasing the abundance of members of Rhizobiales, which play important roles in nitrogen fixation. In general, compared with the control, NC900 improved the retention of nitrogen by controlling ammonia emissions. The results obtained in this study demonstrate that nanocellulose can be applied in the treatment of organic solid waste and agricultural production.
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Affiliation(s)
- Xiaoxia Dai
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiaojuan Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China; Shaanxi Engineering Research Center of Utilization of Agricultural Waste Resources, Northwest A&F University, Yangling, Shaanxi, 712100, China.
| | - Jie Gu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China; Shaanxi Engineering Research Center of Utilization of Agricultural Waste Resources, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zilin Song
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China; Shaanxi Engineering Research Center of Utilization of Agricultural Waste Resources, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Honghong Guo
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Meiling Shi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Huakang Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
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