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Li H, Chen S, Wang M, Shi S, Zhao W, Xiong G, Zhou J, Qu J. Phosphate solubilization and plant growth properties are promoted by a lactic acid bacterium in calcareous soil. Appl Microbiol Biotechnol 2024; 108:24. [PMID: 38159115 DOI: 10.1007/s00253-023-12850-4] [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: 05/04/2023] [Revised: 09/19/2023] [Accepted: 10/03/2023] [Indexed: 01/03/2024]
Abstract
On the basis of good phosphate solubilization ability of a lactic acid bacteria (LAB) strain Limosilactobacillus sp. LF-17, bacterial agent was prepared and applied to calcareous soil to solubilize phosphate and promote the growth of maize seedlings in this study. A pot experiment showed that the plant growth indicators, phosphorus content, and related enzyme activity of the maize rhizospheric soils in the LF treatment (treated with LAB) were the highest compared with those of the JP treatment (treated with phosphate solubilizing bacteria, PSB) and the blank control (CK). The types of organic acids in maize rhizospheric soil were determined through LC-MS, and 12 acids were detected in all the treatments. The abundant microbes belonged to the genera of Lysobacter, Massilia, Methylbacillus, Brevundimonas, and Limosilactobacillus, and they were beneficial to dissolving phosphate or secreting growth-promoting phytohormones, which were obviously higher in the LF and JP treatments than in CK as analyzed by high-throughput metagenomic sequencing methods. In addition, the abundance values of several enzymes, Kyoto Encyclopedia of Genes and Genomes (KEGG) orthology, and Carbohydrate-Active Enzymes (CAZys), which were related to substrate assimilation and metabolism, were the highest in the LF treatment. Therefore, aside from phosphate-solubilizing microorganisms, LAB can be used as environmentally friendly crop growth promoters in agriculture and provide another viable option for microbial fertilizers. KEY POINTS: • The inoculation of LAB strain effectively promoted the growth and chlorophyll synthesis of maize seedlings. • The inoculation of LAB strain significantly increased the TP content of maize seedlings and the AP concentration of the rhizosphere soil. • The inoculation of LAB strain increased the abundances of the dominant beneficial functional microbes in the rhizosphere soil.
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Affiliation(s)
- Haifeng Li
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China.
| | - Siyuan Chen
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Mengyu Wang
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Shuoshuo Shi
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Wenjian Zhao
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Guoyang Xiong
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Jia Zhou
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Jianhang Qu
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
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Tu X, Yin B, Kang J, Wu Z, Guo Y, Ao G, Sun Y, Ge J, Ping W. Potassium persulfate enhances humification of chicken manure and straw composting: The perspective of rare and abundant microbial community structure and ecological interactions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 949:175162. [PMID: 39084372 DOI: 10.1016/j.scitotenv.2024.175162] [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: 05/11/2024] [Revised: 07/05/2024] [Accepted: 07/28/2024] [Indexed: 08/02/2024]
Abstract
Improper disposal of organic solid waste results in serious environmental pollution. Aerobic composting provides an environmentally friendly treatment method, but improving humification of raw materials remains a challenge. This study revealed the effect of different concentrations of potassium persulfate (PP) on humification of chicken manure and straw aerobic composting and the underlying microbial mechanisms. The results showed that when 0.6 % PP was added (PPH group), humus and the degree of polymerization were 80.77 mg/g and 2.52, respectively, which were significantly higher than those in 0.3 % PP (PPL group). As the concentration of PP was increased, the composition of rare taxa (RT) changed and improved in evenness, while abundant taxa (AT) was unaffected. Additionally, the density (0.037), edges (3278), and average degree (15.21) in the co-occurrence network decreased compared to PPL, while the average path (4.021) and modularity increased in PPH. This resulted in facilitating the turnover of matter, information, and energy among the microbes. Interestingly, cooperative behavior between microorganisms during the maturation period (24-60 d) occurred in PPH, but competitive relationships dominated in PPL. Cooperative behavior was positively correlated with humus (p < 0.05). Because the indices, such as higher degree, betweenness centrality, eigenvector centrality, and closeness centrality of the AT, were located in the microbial network center compared to RT, they were unaffected by the concentration of PP. The abundance of carbohydrate and amino acid metabolic pathways, which play an important role in humification, were higher in PPH. These findings contribute to understanding the relative importance of composition, interactions, and metabolic functionality of RT and AT on humification during chicken manure and straw aerobic composting under different concentrations of PP, as well as provide a basic reference for use of various conditioning agents to promote humification of organic solid waste.
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Affiliation(s)
- Xiujun Tu
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Bo Yin
- Institute of Microbiology, Heilongjiang Academy of Sciences, Harbin 150010, China
| | - Jie Kang
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Zhenchao Wu
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Yuhao Guo
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Guoxu Ao
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Yangcun Sun
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Jingping Ge
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China.
| | - Wenxiang Ping
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China.
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3
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Ma M, Ma S, Zeng D, Huang X, Zeng Y, Zhu G, Chen L. Temperature-dependent microbial mechanism and accumulation of volatile fatty acids in primary sludge pretreated with peroxymonosulfate. BIORESOURCE TECHNOLOGY 2024; 408:131201. [PMID: 39097236 DOI: 10.1016/j.biortech.2024.131201] [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: 04/27/2024] [Revised: 07/10/2024] [Accepted: 07/31/2024] [Indexed: 08/05/2024]
Abstract
For revealing the influence of temperature on volatile fatty acids (VFAs) generation from primary sludge (PS) during the anaerobic fermentation process facilitated by peroxymonosulfate (PMS), five fermentation groups (15, 25, 35, 45, and 55 °C) were designed. The results indicated that the production of VFAs (5148 mg COD/L) and acetic acid (2019 mg COD/L) reached their peaks at 45 °C. High-throughput sequencing technology disclosed that Firmicutes, Proteobacteria, and Actinobacteria was the dominant phyla, carbohydrate metabolism and membrane transport were the most vigorous at 45 °C. Additionally, higher temperature and PMS exhibit synergistic effects in promoting VFAs accumulation. This study unveiled the mechanism of the effect of the pretreatment of PS with PMS on the VFAs production, which established a theoretical foundation for the production of VFAs.
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Affiliation(s)
- Mengsha Ma
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Silan Ma
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Daojing Zeng
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Xiao Huang
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China; Shenzhen Key Laboratory of Water Resources Utilization and Environmental Pollution Control, School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
| | - Yuanxin Zeng
- Shenzhen Key Laboratory of Water Resources Utilization and Environmental Pollution Control, School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Gaoming Zhu
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Lixin Chen
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
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Geng Y, Zhou P, Wang Z, Peng C, Li G, Li D. The roles of rare and abundant microbial species in the primary succession of biological soil crusts are differentiated in metal tailings ponds with different states. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134577. [PMID: 38749248 DOI: 10.1016/j.jhazmat.2024.134577] [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: 04/02/2024] [Revised: 04/27/2024] [Accepted: 05/08/2024] [Indexed: 05/30/2024]
Abstract
Tailings ponds formed by long-term accumulation of mineral processing waste have become a global environmental problem. Even worse, tailings ponds are often simply abandoned or landfilled after they cease to be used. This allows pollution to persist and continue to spread in the environment. The significance of primary succession mediated by biological soil crusts for tailings pond remediation has been illustrated by previous studies. However, the process of primary succession may not be the same at different stages during the lifetime of tailings ponds. Therefore, we investigated the environmental differences and the successional characteristics of microbial communities in the primary successional stage of tailings ponds at three different states. The results showed that the primary succession process positively changed the environment of tailings ponds in any state of tailings ponds. The primary successional stage determined the environmental quality more than the state of the tailings pond. In the recently abandoned tailings ponds, abundant species were more subjected to heavy metal stress, while rare species were mainly limited by nutrient content. We found that as the succession progressed, rare species gradually acquired their own community space and became more responsive to environmental stresses. Rare species played an important role in microbial keystone species groups.
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Affiliation(s)
- Yuchen Geng
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Panpan Zhou
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhicong Wang
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Chengrong Peng
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Genbao Li
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Dunhai Li
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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5
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Wen X, Qin X, Long XE, Li Q. Microbial necromass facilitated the humification process through amino sugar reactions during the co-composting of cow manure plus sawdust. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:48175-48188. [PMID: 39017863 DOI: 10.1007/s11356-024-34381-9] [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: 03/26/2024] [Accepted: 07/09/2024] [Indexed: 07/18/2024]
Abstract
Humus (HS) reservoirs can embed microbial necromass (including cell wall components that are intact or with varying degrees of fragmentation) in small pores, raising widespread concerns about the potential for C/N interception and stability in composting systems. In this study, fresh cow manure and sawdust were used for microbial solid fermentation, and the significance of microbial residues in promoting humification was elucidated by measuring their physicochemical properties and analyzing their microbial informatics. These results showed that the stimulation of external carbon sources (NaHCO3) led to an increase in the accumulation of bacterial necromass C/N from 6.19 and 0.91 µg/mg to 21.57 and 3.20 µg/mg, respectively. Additionally, fungal necromass C/N values were about 3 times higher than the initial values. This contributed to the increase in HS content and the increased condensation of polysaccharides and nitrogen-containing compounds during maturation. The formation of cellular debris mainly depends on the enrichment of Actinobacteria, Proteobacteria, Ascomycota, and Chytridiomycota. Furthermore, Euryarchaeota was the core functional microorganism secreting cell wall lytic enzymes (including AA3, AA7, GH23, and GH15). In conclusion, this study comprehensively analyzed the transformation mechanisms of cellular residuals at different profile scales, providing new insights into C/N cycles and sequestration.
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Affiliation(s)
- Xiaoli Wen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Xiaoya Qin
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Xi-En Long
- School of Geographic Sciences, Nantong University, Nantong, 226019, Jiangsu, China
| | - Qunliang Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China.
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6
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Zhang S, Song C, Wang L, Wang M, Zhang D, Tang G. Exploring the promoting effect of nitrilotriacetic acid on hydroxyl radical and humification during magnetite-amended composting of sewage sludge. BIORESOURCE TECHNOLOGY 2024; 403:130863. [PMID: 38772520 DOI: 10.1016/j.biortech.2024.130863] [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: 03/26/2024] [Revised: 05/17/2024] [Accepted: 05/18/2024] [Indexed: 05/23/2024]
Abstract
The OH production by adding magnetite (MGT) alone has been reported in composting. However, the potential of nitrilotriacetic acid (NTA) addition for magnetite-amended sludge composting remained unclear. Three treatments with different addition [control check (CK); T1: 5 % MGT; T2: 5 % MGT + 5 % NTA] were investigated to characterize hydroxyl radical, humification and bacterial community response. The NTA addition manifested the best performance, with the peak OH content increase by 52 % through facilitating the cycle of Fe(Ⅱ)/Fe(Ⅲ). It led to the highest organic matters degradation (22.3 %) and humic acids content (36.1 g/kg). Furthermore, NTA addition altered bacterial community response, promoting relative abundances of iron-redox related genera, and amino acid metabolism but decreasing carbohydrate metabolism. Structural equation model indicated that temperature and Streptomyces were the primary factors affecting OH content. The study suggests that utilizing chelators is a promising strategy to strengthen humification in sewage sludge composting with adding iron-containing minerals.
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Affiliation(s)
- Shihua Zhang
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan, Anhui 243032, China; Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education, Anhui University of Technology, Ma'anshan, Anhui 243032, China.
| | - Chunqing Song
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Liujian Wang
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Mingming Wang
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan, Anhui 243032, China; Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Dewei Zhang
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan, Anhui 243032, China; Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Gang Tang
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan, Anhui 243032, China
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Lu M, Hao Y, Lin B, Huang Z, Zhang Y, Chen L, Li K, Li J. The bioaugmentation effect of microbial inoculants on humic acid formation during co-composting of bagasse and cow manure. ENVIRONMENTAL RESEARCH 2024; 252:118604. [PMID: 38548254 DOI: 10.1016/j.envres.2024.118604] [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: 12/14/2023] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 06/07/2024]
Abstract
The effective degradation of recalcitrant lignocellulose has emerged as a bottleneck for the humification of compost, and strategies are required to improve the efficiency of bagasse composting. Bioaugmentation is a promising method for promoting compost maturation and improving the quality of final compost. In this study, the bioaugmentation effects of microbial inoculants on humic acid (HA) formation during lignocellulosic composting were explored. In the inoculated group, the maximum temperature was increased to 72.5 °C, and the phenol-protein condensation and Maillard humification pathways were enhanced, thus increasing the HA content by 43.85%. After inoculation, the intensity of the microbial community interactions increased, particularly for fungi (1.4-fold). Macrogenomic analysis revealed that inoculation enriched thermophilic bacteria and lignocellulose-degrading fungi and increased the activity of carbohydrate-active enzymes and related metabolic functions, which effectively disrupted the recalcitrant structure of lignocellulose to achieve a high humification degree. Spearman correlation analysis indicated that Stappia of the Proteobacteria phylum, Ilumatobacter of the Actinomycetes phylum, and eleven genera of Ascomycota were the main HA producers. This study provides new ideas for bagasse treatment and recycling and realizing the comprehensive use of resources.
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Affiliation(s)
- Mengling Lu
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China
| | - Yuhao Hao
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China
| | - Binfeng Lin
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China
| | - Zhi Huang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China
| | - Yu Zhang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China
| | - Liang Chen
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China
| | - Kai Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China
| | - Jianbin Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China; Academy of Sugarcane and Sugar Industry, Guangxi University, Nanning 530004, Guangxi, China.
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Mo J, Song Z, Che Y, Li J, Liu T, Feng J, Wang Z, Rong J, Gu S. Effects of aeolian deposition on soil properties and microbial carbon metabolism function in farmland of Songnen Plain, China. Sci Rep 2024; 14:14791. [PMID: 38926449 PMCID: PMC11208439 DOI: 10.1038/s41598-024-65578-0] [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: 02/22/2024] [Accepted: 06/21/2024] [Indexed: 06/28/2024] Open
Abstract
The effects of wind erosion, one of the crucial causes of soil desertification in the world, on the terrestrial ecosystem are well known. However, ecosystem responses regarding soil microbial carbon metabolism to sand deposition caused by wind erosion, a crucial driver of biogeochemical cycles, remain largely unclear. In this study, we collected soil samples from typical aeolian deposition farmland in the Songnen Plain of China to evaluate the effects of sand deposition on soil properties, microbial communities, and carbon metabolism function. We also determined the reads number of carbon metabolism-related genes by high-throughput sequencing technologies and evaluated the association between sand deposition and them. The results showed that long-term sand deposition resulted in soil infertile, roughness, and dryness. The impacts of sand deposition on topsoil were more severe than on deep soil. The diversity of soil microbial communities was significantly reduced due to sand deposition. The relative abundances of Nitrobacteraceae, Burkholderiaceae, and Rhodanobacteraceae belonging to α-Proteobacteria significantly decreased, while the relative abundances of Streptomycetaceae and Geodermatophilaceae belonging to Actinobacteria increased. The results of the metagenomic analysis showed that the gene abundances of carbohydrate metabolism and carbohydrate-activity enzyme (GH and CBM) significantly decreased with the increase of sand deposition amount. The changes in soil microbial community structure and carbon metabolism decreased soil carbon emissions and carbon cycling in aeolian deposition farmland, which may be the essential reasons for land degradation in aeolian deposition farmland.
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Affiliation(s)
- Jixian Mo
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
- College of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, 161006, China
| | - Ziwei Song
- College of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, 161006, China
| | - Yanjing Che
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Jie Li
- College of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, 161006, China
| | - Tianyi Liu
- College of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, 161006, China
| | - Jingyi Feng
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Ziying Wang
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Jiandong Rong
- Qiqihar Experimental Station, Heilongjiang Province Hydraulic Research Institute, Qiqihar, 161006, China
| | - Siyu Gu
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China.
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Shan G, Wei X, Li W, Liu J, Bao S, Wang S, Zhu L, Xi B, Tan W. Effect of aqueous phase from hydrothermal carbonization of sewage sludge on heavy metals and heavy metal resistance genes during chicken manure composting. JOURNAL OF HAZARDOUS MATERIALS 2024; 471:134398. [PMID: 38677124 DOI: 10.1016/j.jhazmat.2024.134398] [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: 12/14/2023] [Revised: 04/15/2024] [Accepted: 04/22/2024] [Indexed: 04/29/2024]
Abstract
Livestock manure is often contaminated with heavy metals (HMs) and HM resistance genes (HMRGs), which pollute the environment. In this study, we aimed to investigate the effects of the aqueous phase (AP) produced by hydrothermal carbonization (HTC) of sewage sludge (SS) alone and the AP produced by co-HTC of rice husk (RH) and SS (RH-SS) on humification, HM bioavailability, and HMRGs during chicken manure composting. RH-SS and SS increased the humic acid content of the compost products by 18.3 % and 9.7 %, respectively, and significantly increased the humification index (P < 0.05) compared to the CK (addition of tap water). The passivation of HMs (Zn, Cu, As, Pb, and Cr) increased by 12.17-23.36 % and 9.74-15.95 % for RH-SS and SS, respectively, compared with that for CK. RH-SS and SS reduced the HMRG abundance in composted products by 22.29 % and 15.07 %, respectively. The partial least squares path modeling results showed that SS and RH-SS promoted compost humification while simultaneously altering the bacterial community and reducing the bioavailability of metals and host abundance of HMRGs, which has a direct inhibitory effect on the production and distribution of HMRGs. These findings support a new strategy to reduce the environmental risk of HMs and HMRGs in livestock manure utilization.
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Affiliation(s)
- Guangchun Shan
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China; 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
| | - Xiaoshu Wei
- 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
| | - 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
| | - Shanshan Bao
- Key Laboratory of Water Management and Water Security for Yellow River Basin, Ministry of Water Resources, Yellow River Engineering Consulting Co. Ltd., Zhengzhou 450003, China
| | - Shuncai Wang
- 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
| | - 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
| | - 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.
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Liew KJ, Shahar S, Shamsir MS, Shaharuddin NB, Liang CH, Chan KG, Pointing SB, Sani RK, Goh KM. Integrating multi-platform assembly to recover MAGs from hot spring biofilms: insights into microbial diversity, biofilm formation, and carbohydrate degradation. ENVIRONMENTAL MICROBIOME 2024; 19:29. [PMID: 38706006 PMCID: PMC11071339 DOI: 10.1186/s40793-024-00572-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 04/22/2024] [Indexed: 05/07/2024]
Abstract
BACKGROUND Hot spring biofilms provide a window into the survival strategies of microbial communities in extreme environments and offer potential for biotechnological applications. This study focused on green and brown biofilms thriving on submerged plant litter within the Sungai Klah hot spring in Malaysia, characterised by temperatures of 58-74 °C. Using Illumina shotgun metagenomics and Nanopore ligation sequencing, we investigated the microbial diversity and functional potential of metagenome-assembled genomes (MAGs) with specific focus on biofilm formation, heat stress response, and carbohydrate catabolism. RESULTS Leveraging the power of both Illumina short-reads and Nanopore long-reads, we employed an Illumina-Nanopore hybrid assembly approach to construct MAGs with enhanced quality. The dereplication process, facilitated by the dRep tool, validated the efficiency of the hybrid assembly, yielding MAGs that reflected the intricate microbial diversity of these extreme ecosystems. The comprehensive analysis of these MAGs uncovered intriguing insights into the survival strategies of thermophilic taxa in the hot spring biofilms. Moreover, we examined the plant litter degradation potential within the biofilms, shedding light on the participation of diverse microbial taxa in the breakdown of starch, cellulose, and hemicellulose. We highlight that Chloroflexota and Armatimonadota MAGs exhibited a wide array of glycosyl hydrolases targeting various carbohydrate substrates, underscoring their metabolic versatility in utilisation of carbohydrates at elevated temperatures. CONCLUSIONS This study advances understanding of microbial ecology on plant litter under elevated temperature by revealing the functional adaptation of MAGs from hot spring biofilms. In addition, our findings highlight potential for biotechnology application through identification of thermophilic lignocellulose-degrading enzymes. By demonstrating the efficiency of hybrid assembly utilising Illumina-Nanopore reads, we highlight the value of combining multiple sequencing methods for a more thorough exploration of complex microbial communities.
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Grants
- FRGS/1/2023/STG02/UTM/02/1, FRGS/1/2019/STG03/UTM/02/1, FRGS/1/2019/STG04/UTM/02/4 Malaysia Fundamental Research Grant Scheme (FRGS)
- FRGS/1/2023/STG02/UTM/02/1, FRGS/1/2019/STG03/UTM/02/1, FRGS/1/2019/STG04/UTM/02/4 Malaysia Fundamental Research Grant Scheme (FRGS)
- FRGS/1/2023/STG02/UTM/02/1, FRGS/1/2019/STG03/UTM/02/1, FRGS/1/2019/STG04/UTM/02/4 Malaysia Fundamental Research Grant Scheme (FRGS)
- FRGS/1/2023/STG02/UTM/02/1, FRGS/1/2019/STG03/UTM/02/1, FRGS/1/2019/STG04/UTM/02/4 Malaysia Fundamental Research Grant Scheme (FRGS)
- FRGS/1/2023/STG02/UTM/02/1, FRGS/1/2019/STG03/UTM/02/1, FRGS/1/2019/STG04/UTM/02/4 Malaysia Fundamental Research Grant Scheme (FRGS)
- 4J549 UTM QuickWin grant
- 4J549 UTM QuickWin grant
- T2EP30123-0028 Singapore Ministry of Education ARC Tier 2 fund
- 1736255, 1849206, and 1920954 National Science Foundation
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Affiliation(s)
- Kok Jun Liew
- Codon Genomics, 42300 Seri Kembangan, Selangor, Malaysia
| | - Saleha Shahar
- Faculty of Science, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Mohd Shahir Shamsir
- Faculty of Science, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Nawal Binti Shaharuddin
- School of Professional and Continuing Education, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Chee Hung Liang
- Faculty of Science, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Stephen Brian Pointing
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Rajesh Kumar Sani
- Department of Chemical and Biological Engineering, South Dakota School of Mines and Technology, Rapid City, SD, 57701, USA.
| | - Kian Mau Goh
- Faculty of Science, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia.
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11
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Sun R, Li Q. Exogenous additive ferric sulfate regulates sulfur-oxidizing bacteria in cow manure composting to promote carbon fixation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:32212-32224. [PMID: 38649605 DOI: 10.1007/s11356-024-33417-4] [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: 01/31/2024] [Accepted: 04/17/2024] [Indexed: 04/25/2024]
Abstract
Enhancing carbon fixation in the composting process was of great significance in the era of massive generation of organic solid waste. In this study, the experimental results showed that the contents of dissolved organic matter (DOM) in the experimental group (CT) were 37.58% higher than those in the control group (CK). The CO2 emission peaked on day 5, and the value of CK was 1.34 times that of CT. Significant differences were observed between the contents of sulfur fractions in CT and CK. This phenomenon may be due to the suppression of sulfur-reducing gene expression in CT. On day 51 of composting, the abundance of sulfur-oxidizing bacteria (SOB) Rhodobacter (5.33%), Rhodovulum (14.76%), and Thioclava (23.83%) in CT was higher than that in CK. In summary, the composting fermentation regulated by Fe2(SO4)3 increased the sulfate content, enhanced the expression of sulfur-oxidizing genes and SOB, and ultimately promoted carbon sequestration during composting.
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Affiliation(s)
- Ru Sun
- 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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12
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Luo Q, Wang H, Lu X, Wang C, Chen R, Cheng J, He T, Fu T. Potential of combined reactor and static composting applications for the removal of heavy metals and antibiotic resistance genes from chicken manure. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 356:120592. [PMID: 38508009 DOI: 10.1016/j.jenvman.2024.120592] [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: 03/01/2024] [Accepted: 03/10/2024] [Indexed: 03/22/2024]
Abstract
Chicken manure (CM) can pose a serious threat to environmental and human health, and need to be managed properly. The compost can effectively treat CM. However, there is limited research on the heavy metals and antibiotic resistance genes (ARGs) during compost CM. In this study, the combined application of reactor and static composting (RSC) was used to produce organic fertilizer of CM (OCM), and heavy metals, ARGs and bacterial community structure was investigated. The results show that RSC could be used to produce OCM, and OCM meet the National organic fertilizer standard (NY/T525-2021). Compared to the initial CM, DTPA-Cu, DTPA-Zn, DTPA-Pb, DTPA-Cr, DTPA-Ni and DTPA-As in OCM decreased by 40.83%, 23.73%, 34.27%, 38.62%, 16.26%, and 43.35%, respectively. RSC decreased the relative abundance of ARGs in CM by 84.06%, while the relative abundance of sul1 and ermC increased. In addition, the relative abundance and diversity of ARGs were mainly influenced by the bacterial community, with Actinobacteria, Firmicutes, and Proteobacteria becoming the dominant phyla during composting, and probably being the main carriers and dispersers of most of the ARGs. Network analyses confirmed that Gracilibacillus, Lactobacillus, Nocardiopsis, Mesorhizobium and Salinicoccus were the main potential hosts of ARGs, with the main potential hosts of sul1 and ermC being Mesorhizobium and Salinicoccus. The passivation and physicochemical properties of heavy metals contribute to the removal of ARGs, with sul1 and ermC being affected by the toal heavy metals. Application of RSC allows CM to produce mature, safe organic fertilizer after 32 d and reduces the risk of rebound from ARGs, but the issues of sul1 and ermC gene removal cannot be ignored.
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Affiliation(s)
- Qu Luo
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, Guizhou, China; Guizhou Engineering Laboratory of Mountain Livestock and Poultry Farming Pollution Control and Resource Technology, Institute of New Rural Development, Guizhou University, Guiyang, 550025, China
| | - Hu Wang
- Guizhou Chuyang Ecological Environmental Protection Technology Co., Ltd., Guizhou, 550003, China
| | - Xiaoqing Lu
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, Guizhou, China; Guizhou Engineering Laboratory of Mountain Livestock and Poultry Farming Pollution Control and Resource Technology, Institute of New Rural Development, Guizhou University, Guiyang, 550025, China
| | - Can Wang
- Lijiang Agricultural Environmental Protection Monitoring Station, Lijiang, Yunnan, 674100, China
| | - Ruiying Chen
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, Guizhou, China; Guizhou Engineering Laboratory of Mountain Livestock and Poultry Farming Pollution Control and Resource Technology, Institute of New Rural Development, Guizhou University, Guiyang, 550025, China
| | - Jianbo Cheng
- Guizhou Engineering Laboratory of Mountain Livestock and Poultry Farming Pollution Control and Resource Technology, Institute of New Rural Development, Guizhou University, Guiyang, 550025, China
| | - Tengbing He
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, Guizhou, China; Guizhou Engineering Laboratory of Mountain Livestock and Poultry Farming Pollution Control and Resource Technology, Institute of New Rural Development, Guizhou University, Guiyang, 550025, China
| | - Tianling Fu
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, Guizhou, China; Guizhou Engineering Laboratory of Mountain Livestock and Poultry Farming Pollution Control and Resource Technology, Institute of New Rural Development, Guizhou University, Guiyang, 550025, China.
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13
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Liang X, Wen X, Yang H, Lu H, Wang A, Liu S, Li Q. Incorporating microbial inoculants to reduce nitrogen loss during sludge composting by suppressing denitrification and promoting ammonia assimilation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 915:170000. [PMID: 38242453 DOI: 10.1016/j.scitotenv.2024.170000] [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: 09/15/2023] [Revised: 12/29/2023] [Accepted: 01/06/2024] [Indexed: 01/21/2024]
Abstract
To address the challenge of increasing nitrogen retention in compost, this study investigated the effects of microbial communities on denitrification and ammonia assimilation during sludge composting by inoculating microbial inoculants. The results showed that the retention rates of total Kjeldahl nitrogen (TKN) and humic acid (HA) in MIs group (with microbial inoculants) were 4.94 % and 18.52 % higher than those in the control group (CK), respectively. Metagenomic analysis showed that Actinobacteria and Proteobacteria were identified as main microorganisms contributing to denitrification and ammonia assimilation. The addition of microbial agents altered the structure of the microbial community, which in turn stimulated the expression of functional genes. During cooling period, the ammonia assimilation genes glnA, gltB and gltD in MIs were 15.98 %, 24.84 % and 32.88 % higher than those in CK, respectively. Canonical correspondence analysis revealed a positive correlation between the dominant bacterial genera from the cooling stage to the maturity stage and the levels of NO3--N, NH4+-N, HA, and TKN contents. NH4+-N was positively correlated with HA, indicating NH4+-N might be incorporated into HA. Heat map and network analyses revealed NH4+-N as a key factor affecting functional genes of denitrification and ammonia assimilation, with Nitrospira identified as the core bacteria in the microbial network. Therefore, the addition of microbial agents could increase nitrogen retention and improve compost product quality.
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Affiliation(s)
- Xueling Liang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Xiaoli Wen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Hongmei Yang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Heng Lu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Ao Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Shuaipeng Liu
- 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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14
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Song T, Zhang F, Chen Q, Tao Y, Chang W, Xia W, Ding W, Jin J. Acceleration of the biodegradation of cationic polyacrylamide by the coupling effect of thermophilic microorganisms and high temperature in hyperthermophilic composting. Bioprocess Biosyst Eng 2024; 47:403-415. [PMID: 38421394 DOI: 10.1007/s00449-024-02972-y] [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: 06/23/2023] [Accepted: 01/20/2024] [Indexed: 03/02/2024]
Abstract
As a flocculant of sewage sludge, cationic polyacrylamide (CPAM) enters the environment with sludge and exists for a long time, posing serious threats to the environment. Due to the environmental friendliness and high efficiency in the process of organic solid waste treatment, hyperthermophilic composting (HTC) has received increasing attention. However, it is still unclear whether the HTC process can effectively remove CPAM from sludge. In this study, the effects of HTC and conventional thermophilic composting (CTC) on CPAM in sludge were compared and analyzed. At the end of HTC and CTC, the concentrations of CPAM were 278.96 mg kg-1 and 533.89 mg kg-1, respectively, and the removal rates were 72.17% and 46.61%, respectively. The coupling effect of thermophilic microorganisms and high temperature improved the efficiency of HTC and accelerated the biodegradation of CPAM. The diversity and composition of microbial community changed dramatically during HTC. Geobacillus, Thermobispora, Pseudomonas, Brevundimonas, and Bacillus were the dominant bacteria responsible for the high HTC efficiency. To our knowledge, this is the first study in which CPAM-containing sludge is treated using HTC. The ideal performance and the presence of key microorganisms revealed that HTC is feasible for the treatment of CPAM-containing sludge.
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Affiliation(s)
- Tianwen Song
- College of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, China.
| | - Fan Zhang
- College of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, China
| | - Qu Chen
- Medical College, Qingdao Binhai University, Qingdao, 266555, China
| | - Yinglu Tao
- College of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, China
| | - Wei Chang
- College of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, China
| | - Wenxiang Xia
- College of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, China.
| | - Wande Ding
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China
| | - Jiafeng Jin
- Key Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education, Qingdao, 266580, China
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15
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Pan Z, Wang W, Chen J, Chen Z, Avellán-Llaguno RD, Xu W, Duan Y, Liu B, Huang Q. Temporal dynamics of microbial composition and antibiotic resistome in fermentation bed culture pig farms across various ages. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168728. [PMID: 37992830 DOI: 10.1016/j.scitotenv.2023.168728] [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: 09/26/2023] [Revised: 11/18/2023] [Accepted: 11/18/2023] [Indexed: 11/24/2023]
Abstract
The discharge from pig farms presents significant challenges to the environment and human health, specifically regarding the dissemination of antimicrobial resistance (AMR). Fermentation bed culture has emerged as an increasingly popular and environmentally friendly pig farming model in China, as it minimizes the release of harmful substances into the environment. However, there remains a limited understanding of the occurrence and dynamics of microbiome and antibiotic resistome in fermentation bed culture. Herein, we collected fermentation bed materials (FBM) from four fermentation bed culture pig farms with varying service ages and investigated their bacterial communities, antibiotic resistance genes (ARGs), mobile genetic elements (MGEs), metal resistance genes (MRGs) and potential antibiotic-resistant bacterial hosts through metagenomics. Pseudomonadota, Actinomycetota, Bacteroidota and Bacillota were identified as the dominant phyla present in the FBM. In total, we detected 258 unique ARGs in the FBM samples, with 79 core ARGs shared by all FBM samples, accounting for 95 % of the total ARG abundance. Our results revealed significant variations in microbial communities and ARG profiles across varying service ages of FBM. Compared to long-term FBW, short-term FBM exhibited higher numbers and abundances of ARGs, MRGs and MGEs, along with higher levels of potential bacterial pathogens and high-risk ARGs. Further analysis of metagenome-assembled genome (MAG) indicated that the putative hosts of ARGs primarily belonged to Pseudomonadota, Actinomycetota and Bacillota. Alarmingly, among the 80 recovered ARG-carrying MAGs, 23 MAGs encoded multi-resistance, including clinically significant species that require urgent attention. Overall, this study provided valuable insights into the temporal patterns of antibiotic resistome and bacterial communities within FBM, enhancing our understanding of FBM in pig farming. The findings could potentially contribute to the development of effective strategies for evaluating and regulating fermentation bed culture practices in pig farming.
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Affiliation(s)
- Zhizhen Pan
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Weiyi Wang
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Institute of Life Sciences and Green Development, College of Life Sciences, Hebei University, Hebei 071002, China
| | - Jingyu Chen
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Zheng Chen
- Institue of Plant Protection, Fujian Academy of Agriculture Sciences, Fuzhou 350003, China
| | - Ricardo David Avellán-Llaguno
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Wenjuan Xu
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yifang Duan
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Bo Liu
- Fujian Academy of Agriculture Sciences, Fuzhou 350003, China
| | - Qiansheng Huang
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
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16
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Xiang Y, Zhou B, Jiang C, Tang Z, Liu P, Ding W, Lin H, Tang J. Revealing the formation mechanisms of key flavors in fermented broad bean paste. Food Res Int 2024; 177:113880. [PMID: 38225117 DOI: 10.1016/j.foodres.2023.113880] [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: 06/11/2023] [Revised: 12/08/2023] [Accepted: 12/14/2023] [Indexed: 01/17/2024]
Abstract
Pixian Douban (PXDB) is a popular Chinese condiment for its distinctive flavor. Broad bean fermentation (Meju) is the most important process in the formation of flavor substances. Key flavors were analyzed qualitatively and quantitatively, and metagenomic technology was applied to study the microbial diversity during broad bean fermentation. In addition, the main metabolic pathways of key flavors were explored. Results indicated that Staphylococcus_gallinarum was the main microorganism in the microbial community, accounting for 39.13%, followed by Lactobacillus_agilis, accounting for 13.76%. Aspergillus_flavus was the fungus with the highest species abundance, accounting for 3.02%. The KEGG Pathway enrichment analysis showed that carbohydrate metabolism and amino acid metabolism were the main metabolic pathways. Glycoside hydrolase and glycosyltransferase genes were the most abundant, accounting for more than 70% of the total number of active enzyme genes. A total of 113 enzymes related to key flavors and 39 microorganisms corresponding to enzymes were annotated. And Staphylococcus_gallinarum, Lactobacillus_agilis, Weissella_confusa, Pediococcus_acidilactici, Staphylococcus_kloosii, Aspergillus_oryzae, and Aspergillus_flavus played a key role in the metabolic pathway. This study reveals the formation mechanism of key flavors in fermented broad bean, it is important for guiding the industrial production of PXDB and improving product quality.
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Affiliation(s)
- Yue Xiang
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China; Food Microbiology Key Laboratory of Sichuan Province, Chengdu 610039, China.
| | - Binbin Zhou
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China
| | - Chunyan Jiang
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China; Chongqing Key Laboratory of Specialty Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China
| | - Zhirui Tang
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China; Chongqing Key Laboratory of Specialty Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China
| | - Ping Liu
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China; Chongqing Key Laboratory of Specialty Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China
| | - Wenwu Ding
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China; Chongqing Key Laboratory of Specialty Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China
| | - Hongbin Lin
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China; Chongqing Key Laboratory of Specialty Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China.
| | - Jie Tang
- Food Microbiology Key Laboratory of Sichuan Province, Chengdu 610039, China.
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17
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Huang Y, Mei J, Duan E, Zhu Y, Wu Y. Effect and its mechanism of potassium persulfate on aerobic composting process of vegetable wastes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:7111-7121. [PMID: 38157178 DOI: 10.1007/s11356-023-31466-9] [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: 08/29/2023] [Accepted: 12/06/2023] [Indexed: 01/03/2024]
Abstract
Vegetable waste (VW) is a potential organic fertilizer resource. As an important way to utilize vegetable wastes, aerobic composting of VW generally has the problems of long fermentation cycle and incomplete decomposition of materials. In this study, 0.3-1.2% of potassium persulfate (KPS) was added to promote the maturity of compost. The results showed that the addition of KPS promoted the degradation of materials, accelerated the temperature rise of compost. KPS also promoted the formation of humic substances (HS). Compared with the control, HS contents of treatments with KPS addition increased by 7.81 ~ 17.52%. Fourier transform infrared (FTIR) spectroscopy and scanning electron microscope (SEM) analysis reveal the mechanism of KPS affecting the composting process: KPS stimulated the degradation of various organic substances such as lignin at high temperature stage, and the degradation of lignin could accelerate the release and decomposition of other components; KPS made the structure of the material looser, with more voids and pores, and more specific surface area of the material, which was more suitable for microbial degradation activities. Therefore, the addition of KPS can promote the decomposition of organic matter in the early stage of composting, accelerate the process of thermophilic phase, and shorten the composting process and improve product maturity.
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Affiliation(s)
- YuYing Huang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Juan Mei
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China.
- Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou, 215009, China.
| | - EnShuai Duan
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Ying Zhu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - YanZe Wu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
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18
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Zhou Y, Shen Y, Wang H, Jia Y, Ding J, Fan S, Li D, Zhang A, Zhou H, Xu Q, Li Q. Biochar addition accelerates the humification process by affecting the microbial community during human excreta composting. ENVIRONMENTAL TECHNOLOGY 2023:1-14. [PMID: 38100615 DOI: 10.1080/09593330.2023.2291418] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/30/2023] [Indexed: 12/17/2023]
Abstract
Biochar addition plays an important role in manure composting, but its driving mechanism on microbial succession and humification process of human excreta composting is still unclear. In the present study, the mechanism of biochar addition was explored by analysing the humification process and microbial succession pattern of human excreta aerobic composting without and with 10% biochar (HF and BHF). Results indicated that BHF improved composting temperature, advanced the thermophilic phase by 1 d, increased the germination index by 49.03%, promoted the growth rate of humic acid content by 17.46%, and raised the compost product with the ratio of humic acid to fulvic acid (HA/FA) by 16.19%. Biochar regulated the diversity of fungi and bacteria, increasing the relative abundance of Planifilum, Meyerozyma and Melanocarpus in the thermophilic phase, and Saccharomonospora, Flavobacterium, Thermomyces and Remersonia in the mature phase, which accelerates the humification. Bacterial communities' succession had an obvious correlation with the total carbon, total nitrogen, and temperature (P < 0.05), while the succession of fungal communities was influenced by the HA/FA and pH (P < 0.05). This study could provide a reference for the improvement of on-site human excreta harmless by extending the thermophilic phase, and facilitating the humification in human excreta compost with biochar addition.
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Affiliation(s)
- Yawen Zhou
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Yujun Shen
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Huihui Wang
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Yiman Jia
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Jingtao Ding
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Shengyuan Fan
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Danyang Li
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Aiqin Zhang
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Haibin Zhou
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Qing Xu
- United Nations International Children's Emergency Fund China, Beijing, People's Republic of China
| | - Qian Li
- United Nations International Children's Emergency Fund China, Beijing, People's Republic of China
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19
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Shan G, Li W, Liu J, Tan W, Bao S, Wang S, Zhu L, Hu X, Xi B. Macrogenomic analysis of the effects of aqueous-phase from hydrothermal carbonation of sewage sludge on nitrogen metabolism pathways and associated bacterial communities during composting. BIORESOURCE TECHNOLOGY 2023; 389:129811. [PMID: 37776912 DOI: 10.1016/j.biortech.2023.129811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/21/2023] [Accepted: 09/27/2023] [Indexed: 10/02/2023]
Abstract
The effects of aqueous phases (AP) formed from hydrothermal carbonation of sewage sludge (with or without rice husk) as moisture regulators of nitrogen metabolism pathways during composting are currently unclear. Macrogenomic analyses revealed that both APs resulted in notably changes in bacterial communities during composting; increased levels of nitrogen assimilation, nitrification, and denitrification metabolic pathways; and decreased levels of nitrogen mineralization metabolic pathways. Genes associated with nitrogen assimilation and mineralization accounted for 34-41% and 32-40% of the annotated reads related to nitrogen cycling during composting, respectively, representing them as the most abundant nitrogen metabolism processes. The gudB and norB were identified as key genes for nitrogen mineralization and nitrous oxide emission, respectively. This research offers a better understanding of the effects of additional nitrogen sources on nitrogen metabolism pathways during composting.
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Affiliation(s)
- Guangchun Shan
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China; 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
| | - 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
| | - 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.
| | - Shanshan Bao
- Key Laboratory of Water Management and Water Security for Yellow River Basin, Ministry of Water Resources, Yellow River Engineering Consulting Co. Ltd., Zhengzhou 450003, China
| | - Shuncai Wang
- 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
| | - 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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20
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Li J, Lu H, Wang A, Wen X, Huang Y, Li Q. The fates of antibiotic resistance genes and their association with cell membrane permeability in response to peroxydisulfate during composting. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 344:118659. [PMID: 37478721 DOI: 10.1016/j.jenvman.2023.118659] [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: 02/16/2023] [Revised: 06/18/2023] [Accepted: 07/15/2023] [Indexed: 07/23/2023]
Abstract
The aims of this study were to use metagenomics to reveal the fates of antibiotic resistance genes (ARGs) during composting under the regulation of peroxydisulfate and clarify the relationship between ARGs and cell membrane permeability. Results showed that peroxydisulfate increased cell membrane permeability by effectively regulating the expression of outer membrane protein and lipopolysaccharide related genes. Besides, it reduced polysaccharides and proteins in extracellular polymer substances by 36% and 58%, respectively, making it easier for intracellular ARGs (i-ARGs) to reach the extracellular environment, among which the absolute intracellular abundance of mphK, Erm(31), and tet(44) decreased to 1.2, 1.0, and 0.89 fold of the control, respectively. Finally, variation partitioning analysis showed that i-ARGs dominated the removal of ARGs. These results revealed that the removal of i-ARGs by activated peroxydisulfate was the key to the removal of ARGs and increased cell membrane permeability played a key role for peroxydisulfate to remove i-ARGs during composting.
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Affiliation(s)
- Jixuan Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Heng Lu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Ao Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Xiaoli Wen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Yite Huang
- 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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21
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Lu H, Liu S, Wang A, Yang H, Liang X, Chen X, Li Q. Transmission and regulation insights into antibiotic resistance genes in straw-sludge composting system amended with calcium peroxide. BIORESOURCE TECHNOLOGY 2023; 386:129539. [PMID: 37488016 DOI: 10.1016/j.biortech.2023.129539] [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: 05/23/2023] [Revised: 07/18/2023] [Accepted: 07/19/2023] [Indexed: 07/26/2023]
Abstract
This study developed a Fenton-like system by adding calcium peroxide (CaO2) to a composting system containing straw and sludge. The objective was to examine the influence of antibiotic resistance genes (ARGs) and the structure of the bacterial community. The findings indicated that the inclusion of CaO2 facilitated the reduction of ARGs. ARGs abundance in the test group (T) with CaO2 was 19.02% lower than that in the control check group (CK) without CaO2, and the abundance of ARGs in both groups after composting was lower than the initial abundance. Additionally, the structure of bacterial community in both groups underwent significant changes. Redundancy analysis (RDA) revealed that the CaO2-induced Fenton-like reaction predominantly affected temperature, pH, and the bacterial community by means of reactive oxygen species (ROS). In conclusion, the addition of CaO2 enhanced the removal of ARGs from sewage-sludge and improved compost quality in the composting.
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Affiliation(s)
- Heng Lu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Shuaipeng Liu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Ao Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Hongmei Yang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Xueling Liang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Xiaojing Chen
- 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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Ma Y, Liu L, Zhou X, Tian T, Xu S, Li D, Li C, Li Y. Optimizing Straw-Rotting Cultivation for Sustainable Edible Mushroom Production: Composting Spent Mushroom Substrate with Straw Additions. J Fungi (Basel) 2023; 9:925. [PMID: 37755033 PMCID: PMC10532571 DOI: 10.3390/jof9090925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 09/03/2023] [Accepted: 09/09/2023] [Indexed: 09/28/2023] Open
Abstract
In recent years, the optimization of straw-rotting formulations for cultivating edible mushrooms and the management of the resulting spent mushroom substrate have emerged as new challenges. This study aimed to investigate the composting of spent mushroom substrate produced from mushroom cultivation with various straw additions, under conditions where chicken manure was also used. Parameters measured during the composting process included temperature, pH, electrical conductivity (EC), germination index (GI), moisture, and total nitrogen content. Additionally, changes in nutrient content within the compost piles before and after composting were determined, and the variations in bacterial and fungal communities across different treatments before and after composting were analyzed using 16S rRNA and ITS sequencing. The results indicated that the spent mushroom substrate produced by adding 20% straw during mushroom cultivation was more suitable for composting treatment. The findings suggest that incorporating an appropriate amount of straw in mushroom cultivation can facilitate subsequent composting of spent mushroom substrate, providing an effective strategy for both environmental protection and cost reduction.
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Affiliation(s)
- Yongsheng Ma
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (Y.M.); (L.L.); (X.Z.); (T.T.); (S.X.); (D.L.); (Y.L.)
| | - Lingyun Liu
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (Y.M.); (L.L.); (X.Z.); (T.T.); (S.X.); (D.L.); (Y.L.)
| | - Xiaoyan Zhou
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (Y.M.); (L.L.); (X.Z.); (T.T.); (S.X.); (D.L.); (Y.L.)
| | - Tian Tian
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (Y.M.); (L.L.); (X.Z.); (T.T.); (S.X.); (D.L.); (Y.L.)
| | - Shuai Xu
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (Y.M.); (L.L.); (X.Z.); (T.T.); (S.X.); (D.L.); (Y.L.)
| | - Dan Li
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (Y.M.); (L.L.); (X.Z.); (T.T.); (S.X.); (D.L.); (Y.L.)
| | - Changtian Li
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (Y.M.); (L.L.); (X.Z.); (T.T.); (S.X.); (D.L.); (Y.L.)
- International Joint Research Center for the Creation of New Edible Mushroom Germplasm Resources, Ministry of Science and Technology, Jilin Agricultural University, Changchun 130118, China
| | - Yu Li
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (Y.M.); (L.L.); (X.Z.); (T.T.); (S.X.); (D.L.); (Y.L.)
- International Joint Research Center for the Creation of New Edible Mushroom Germplasm Resources, Ministry of Science and Technology, Jilin Agricultural University, Changchun 130118, China
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23
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Li J, Zhou Y, Liu S, Wen X, Huang Y, Li K, Li Q. The removal performances and evaluation of heavy metals, antibiotics, and resistomes driven by peroxydisulfate amendment during composting. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131819. [PMID: 37307729 DOI: 10.1016/j.jhazmat.2023.131819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/24/2023] [Accepted: 06/08/2023] [Indexed: 06/14/2023]
Abstract
This study aimed to explore the effect of peroxydisulfate on the removal of heavy metals, antibiotics, heavy metal resistance genes (HMRGs), and antibiotic resistance genes (ARGs) during composting. The results showed that peroxydisulfate achieved the passivation of Fe, Mn, Zn, and Cu by promoting their speciation variations, thus reducing their bioavailability. And the residual antibiotics were better degraded by peroxydisulfate. In addition, metagenomics analysis indicated that the relative abundance of most HMRGs, ARGs, and MGEs was more effectively down-regulated by peroxydisulfate. Network analysis confirmed Thermobifida and Streptomyces were dominant potential host bacteria of HMRGs and ARGs, whose relative abundance was also effectively down-regulated by peroxydisulfate. Finally, mantel test showed the significant effect of the evolution of microbial communities and strong oxidation of peroxydisulfate on the removal of pollutants. These results suggested that heavy metals, antibiotics, HMRGs, and ARGs shared a joint fate of being removed driven by peroxydisulfate during composting.
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Affiliation(s)
- Jixuan Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Yucheng Zhou
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Shuaipeng Liu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Xiaoli Wen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Yite Huang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Kecheng Li
- 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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24
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Li J, Lu H, Yang H, Wen X, Huang Y, Li Q. Performances of antibiotic resistance genes profile upon the action of biochar-activated peroxydisulfate in composting. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 334:117509. [PMID: 36801799 DOI: 10.1016/j.jenvman.2023.117509] [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: 12/22/2022] [Revised: 01/28/2023] [Accepted: 02/11/2023] [Indexed: 06/18/2023]
Abstract
In this study, the amendment of biochar-activated peroxydisulfate during composting to remove antibiotic resistance genes (ARGs) by direct (microbial community succession) and indirect methods (physicochemical factors) was analyzed. When implementing indirect methods, the synergistic effect of peroxydisulfate with biochar optimized the physicochemical habitat of compost, maintaining its moisture within a range of 62.95%-65.71%, and a pH of 6.87-7.73, and causing the compost to mature 18 days earlier than the control groups. The direct methods caused the optimized physicochemical habitat to adjust the microbial communities and reduce the abundance of most of the ARG host bacteria (Thermopolyspora, Thermobifida, and Saccharomonospora), thus inhibiting this substance's amplification. Heatmap analysis confirmed the necessary connection between physicochemical factors, microbial communities, and ARGs. Moreover, a mantel test confirmed the direct significant effect of the microbial communities on ARGs and the indirect significant effect of physicochemical factors on ARGs. The results showed that the abundance of more ARGs was down-regulated at the end of composting and regulated by biochar-activated peroxydisulfate, especially for the abundance of AbaF, tet(44), golS, and mryA, which was significantly decreased by 0.87-1.07 fold. These results provide new insights into the removal of ARGs during composting.
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Affiliation(s)
- Jixuan Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Heng Lu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Hongmei Yang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Xiaoli Wen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Yite Huang
- 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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25
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Wang Y, Li Q. Competition and interaction between DNRA and denitrification in composting ecosystems: insights from metagenomic analysis. BIORESOURCE TECHNOLOGY 2023; 381:129140. [PMID: 37169197 DOI: 10.1016/j.biortech.2023.129140] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 05/02/2023] [Accepted: 05/04/2023] [Indexed: 05/13/2023]
Abstract
This study investigated denitrification and dissimilatory nitrate reduction to ammonium (DNRA) competition for nitrite in composting of sugarcane pith and cow manure. Metagenomic analysis showed that Actinobacteria was the main DNRA microorganism. During heating phase and thermophilic phase, the abundances of denitrification functional genes (nirK and nirS decreased by 40.22% and 98.60%, respectively) and DNRA functional genes (nirB, nirD increased by 195.24% and 176.61%, and nrfA decreased by 45%, respectively) showed different trends. Interestingly, the abundance of nrfA increased by 250% during cooling and maturity phases. Mantel test revealed that competition between denitrification and DNRA microorganisms for NO2--N limited the succession of their respective communities (P < 0.01). Network analysis showed that unclassified Solirubrobacterales, Altererythrobacter and Microbacterium were the key microorganisms in DNRA microbial communities. The results provided new insights into the key microorganisms and their driving factors affecting DNRA and nitrogen management in the composting ecosystems.
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Affiliation(s)
- Yiwu 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; Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, Guangxi University, Nanning 530004, China.
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26
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Wen X, Zhou Y, Liang X, Li J, Huang Y, Li Q. A novel carbon-nitrogen coupled metabolic pathway promotes the recyclability of nitrogen in composting habitats. BIORESOURCE TECHNOLOGY 2023; 381:129134. [PMID: 37164230 DOI: 10.1016/j.biortech.2023.129134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/02/2023] [Accepted: 05/04/2023] [Indexed: 05/12/2023]
Abstract
This study revealed a novel carbon-nitrogen coupled metabolic pathway. Results showed that the addition of inorganic carbon sources slowed down the decomposition of urea and conserved more nutrients in composting. Metagenomic analysis showed that the main bacteria involved in this new pathway were Actinobacteria, Proteobacteria and Firmicutes. During the late composting period, the dominant genus Microbacteium involved in denitrification accounted for 22.18% in control (CP) and only 0.12% in treatment group (T). Moreover, ureC, rocF, argF, argI, argG were key genes involved in urea cycle. The abundance of functional gene ureC and denitrification genes decreased in thermophilic and cooling phases, respectively. The genes hao, nosZ, ureA and nifH were more closely associated with Chloroflexi_bacterium and Bacillus_paralichenformis. In conclusion, composting habitats with additional inorganic carbon sources could not only weaken denitrification but also allow more nitrogen to be conserved through slow-release urea to improve resource utilization and decrease the environmental risk.
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Affiliation(s)
- Xiaoli Wen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Yucheng Zhou
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Xueling Liang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Jixuan Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Yite Huang
- 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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27
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Shan G, Li W, Zhou Y, Bao S, Zhu L, Tan W. Effects of persulfate-assisted hydrothermal treatment of municipal sludge on aqueous phase characteristics and phytotoxicity. J Environ Sci (China) 2023; 126:163-173. [PMID: 36503745 DOI: 10.1016/j.jes.2022.04.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/22/2022] [Accepted: 04/24/2022] [Indexed: 06/17/2023]
Abstract
Hydrothermal technology (HT) has received much attention in recent years as a process to convert wet organic waste into hydrochar. The aqueous phase (HTAP) produced by this process is still a burden and has become a bottleneck issue for HT process development. In this study, we provide the first investigation of the HTAP characteristics, phytotoxicity, and their correlation with persulfate (PS) (PS, 2.0 mmol/g TS)-assisted municipal sludge HT. The results showed that PS accelerated the hydrolysis of protein substances and increased the concentration of NH4+ by 13.4% to 190.5% and that of PO43- by 24.2% to 1103.7% in HTAP at hydrothermal temperatures of 120 to 240 °C. PS can reduce the phytotoxicity of HTAP by reducing aldehydes, ketones, N heterocyclic compounds, and particle size and by increasing its humification index. The maximum values of the root length and biomass of pakchoi (Brassica chinensis L.) seedlings occurred when electrical conductivity was 0.2 mS/cm of HTAP. This work provided a new strategy for the selection and design of HTAP management strategies.
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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
| | - Yujie Zhou
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Shanshan Bao
- Key Laboratory of Water Management and Water Security for Yellow River Basin of Ministry of Water Resources (Under Construction), Yellow River Engineering Consulting Co. Ltd, Zhengzhou 450003, China
| | - Lin Zhu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, 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.
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28
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Li X, Li K, Wang Y, Huang Y, Yang H, Zhu P, Li Q. Diversity of lignocellulolytic functional genes and heterogeneity of thermophilic microbes during different wastes composting. BIORESOURCE TECHNOLOGY 2023; 372:128697. [PMID: 36731616 DOI: 10.1016/j.biortech.2023.128697] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/26/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
The goal of this study was to investigate the heterogeneity of thermophilic microorganisms and their lignocellulose-degrading gene diversity during composting. In this study, bagasse pith/dairy manure (BAG) and sawdust/dairy manure (SAW) were used as experimental subjects. The pour plate method indicated that thermophilic bacteria and thermophilic actinobacteria were more culturable than thermophilic fungi. Metagenomics analysis showed that the Actinobacteria, Firmicutes and Proteobacteria were the dominant phyla during composting. In addition, auxiliary activity and glycoside hydrolase families were critical for lignocellulosic degradation, which were found to be more abundant in BAG. As a result, the degradation rates of cellulose, hemicellulose and lignin in BAG (7.36%, 13.99% and 5.68%) were observably higher than those in SAW (6.13%, 12.09% and 2.62%). These findings contribute to understanding how thermophilic microbial communities play a role in the deconstruction of different lignocelluloses and provide a potential strategy to comprehensively utilize the resources of lignocellulosic biomass.
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Affiliation(s)
- Xiaolan Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Kecheng Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Yiwu Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Yite Huang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Hongxiang Yang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Pengfei Zhu
- 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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29
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Yu X, Cheng A, Chen D, Li T, Fan X, Wang X, Ji W, Wang J, Ren L. Insight into the evolution characteristics on molecular weight of compost dissolved organic matters using high-performance size exclusion chromatography combined with a two-dimensional correlation analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:37197-37207. [PMID: 36571693 DOI: 10.1007/s11356-022-24922-5] [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: 07/08/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
The information on molecular weight (MW) characteristics of DOM and relevant evolution behaviors during composting are limited. In this study, DOM extracted from co-composting of chicken manure and rice husks were comprehensively analyzed by using high-performance size exclusion chromatography (HPSEC) combined with a two-dimensional correlation spectroscopy (2D COS) to explore the evolution characteristics of MW of compost DOM. The HPSEC detected at UV of 254 nm and at fluorescence (FL) Ex/Em wavelengths (315/410, 270/455 nm) all showed a gradual increase in both weight-average and number-average MW for DOM, suggesting that the large MW fractions were continuously generated and polymerized during composting. The 2D COS applied on HPSEC-UV and -FL further identified the key active MW chromophoric (i.e., 0.5, 7.2. 9.5, 26.3, 30.7, and 83.9 kDa) and fluorophoric (i.e., 0.55 and 3.5 kDa) molecules that mainly participated in the transformation processes of compost DOM. Moreover, these active MW species were preferentially formed by the order of small to large molecules. A hetero-2D COS analysis disclosed the change sequence in the order of 0.5 and 7.2 kDa chromophores → 3.5 kDa fluorophores, and the 0.55 and 3.5 kDa fluorophores → 26.3 and 83.9 kDa chromophores.
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Affiliation(s)
- Xufang Yu
- College of Resource and Environment, Anhui Science and Technology University, Fengyang, 233100, People's Republic of China
| | - Ao Cheng
- College of Resource and Environment, Anhui Science and Technology University, Fengyang, 233100, People's Republic of China
| | - Dan Chen
- College of Resource and Environment, Anhui Science and Technology University, Fengyang, 233100, People's Republic of China
| | - Ting Li
- College of Resource and Environment, Anhui Science and Technology University, Fengyang, 233100, People's Republic of China
| | - Xingjun Fan
- College of Resource and Environment, Anhui Science and Technology University, Fengyang, 233100, People's Republic of China.
- Anhui Province Key Laboratory of Biochar and Cropland Pollution Prevention, Bengbu, 233400, People's Republic of China.
| | - Xiang Wang
- College of Resource and Environment, Anhui Science and Technology University, Fengyang, 233100, People's Republic of China
- Anhui Province Key Laboratory of Biochar and Cropland Pollution Prevention, Bengbu, 233400, People's Republic of China
| | - Wenchao Ji
- College of Resource and Environment, Anhui Science and Technology University, Fengyang, 233100, People's Republic of China
- Anhui Province Key Laboratory of Biochar and Cropland Pollution Prevention, Bengbu, 233400, People's Republic of China
| | - Jianfei Wang
- College of Resource and Environment, Anhui Science and Technology University, Fengyang, 233100, People's Republic of China
- Anhui Province Key Laboratory of Biochar and Cropland Pollution Prevention, Bengbu, 233400, People's Republic of China
| | - Lantian Ren
- College of Agronomy, Anhui Science and Technology University, Fengyang, 233100, China
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Jia P, Wang X, Liu S, Hua Y, Zhou S, Jiang Z. Combined use of biochar and microbial agent can promote lignocellulose degradation and humic acid formation during sewage sludge-reed straw composting. BIORESOURCE TECHNOLOGY 2023; 370:128525. [PMID: 36572158 DOI: 10.1016/j.biortech.2022.128525] [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: 11/06/2022] [Revised: 12/17/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
This study investigated the effects of corn straw biochar (CSB) and effective microorganisms (EM) added individually or combinedly on lignocellulose degradation, compost humification, and microbial communities during sewage sludge-reed straw composting process. All the additive practices were found to significantly elevate the humification degree of compost products. The degradation rates of cellulose, hemicellulose, and lignin in different additive treatments were 20.8-31.2 %, 36.2-44.8 %, and 19.9-25.7 %, respectively, which were greatly higher than those of the control. Compared with the single uses of CSB or EM, the combined use of CSB and EM generated greater promotions in lignin and hemicellulose degradations and increase in humic acid content. By comparing the differences in microbial communities among different treatments, the CSB-EM demonstrated greater increases in activity and diversity of lignocellulose degradation-related microbes, especially for fungus. Lastly, the combined use of CSB and EM was highly recommended as a high-efficient improvement strategy for organic compost production.
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Affiliation(s)
- Peiyin Jia
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China; Carbon Neutrality and Eco-Environmental Technology Innovation Center of Qingdao, Qingdao 266071, China
| | - Xin Wang
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China; Carbon Neutrality and Eco-Environmental Technology Innovation Center of Qingdao, Qingdao 266071, China
| | - Shuming Liu
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China; Carbon Neutrality and Eco-Environmental Technology Innovation Center of Qingdao, Qingdao 266071, China
| | - Yuting Hua
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China; Carbon Neutrality and Eco-Environmental Technology Innovation Center of Qingdao, Qingdao 266071, China
| | - Shunxi Zhou
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Zhixiang Jiang
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China; Carbon Neutrality and Eco-Environmental Technology Innovation Center of Qingdao, Qingdao 266071, China.
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31
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Chen L, Li W, Zhao Y, Zhang S, Meng L. Mechanism of sulfur-oxidizing inoculants and nitrate on regulating sulfur functional genes and bacterial community at the thermophilic compost stage. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 326:116733. [PMID: 36372033 DOI: 10.1016/j.jenvman.2022.116733] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/05/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
The emission of H2S odors predominantly occurred at the thermophilic phase of composting, which could cause odorous gas pollution and reduce the fertilizer value of composting products. And sulfur-oxidizing bacteria (SOB) possess oxidative capacities for inorganic sulfur compounds with nitrate applied as electron acceptors. Therefore, this study aimed to assess the effectiveness of combined additives (SOB inoculants and nitrate) on the bacterial community diversity, sulfur-oxidizing gene abundances, and metabolic function prediction at the thermophilic stage of sewage sludge composting. The highest sulfate contents were increased by 1.02-1.34 folds, and the abundances of the sulfur-oxidizing genes (sqr, pdo, sox, and sor) were also enhanced by adding the combined additives. Network patterns revealed a strengthened interaction of inoculants and sulfur functional genes. Microbial functional pathways predicted higher metabolic levels of carbohydrate and amino acid metabolisms with the addition of combined additives, and the predicted relative abundances of sulfur metabolism and nitrogen metabolism were increased by 19.3 ± 2.5% and 24.7 ± 4.1%, respectively. Heatmap analysis showed that the SOB might have a competitive advantage over the indigenous denitrifying bacteria in using nitrate for biochemical reactions. Correlation analyses suggested that sulfur-oxidizing efficacy could be indirectly affected by the environmental parameters through changing the structure of bacterial community. These findings provide new insights toward an optimized inoculation strategy of using SOB and nitrate to enhance sulfur preservation and modulate the bacterial communities at the thermophilic phase of sewage sludge composting.
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Affiliation(s)
- Li Chen
- School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Weiguang Li
- School of Environment, Harbin Institute of Technology, Harbin, 150090, China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China.
| | - Yi Zhao
- School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Shumei Zhang
- Institute of Microbiology, Heilongjiang Academy of Sciences, Harbin, 150010, China
| | - Liqiang Meng
- Institute of Microbiology, Heilongjiang Academy of Sciences, Harbin, 150010, China
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32
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Kukkar D, Sharma PK, Kim KH. Recent advances in metagenomic analysis of different ecological niches for enhanced biodegradation of recalcitrant lignocellulosic biomass. ENVIRONMENTAL RESEARCH 2022; 215:114369. [PMID: 36165858 DOI: 10.1016/j.envres.2022.114369] [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: 08/12/2022] [Revised: 09/06/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Lignocellulose wastes stemming from agricultural residues can offer an excellent opportunity as alternative energy solutions in addition to fossil fuels. Besides, the unrestrained burning of agricultural residues can lead to the destruction of the soil microflora and associated soil sterilization. However, the difficulties associated with the biodegradation of lignocellulose biomasses remain as a formidable challenge for their sustainable management. In this respect, metagenomics can be used as an effective option to resolve such dilemma because of its potential as the next generation sequencing technology and bioinformatics tools to harness novel microbial consortia from diverse environments (e.g., soil, alpine forests, and hypersaline/acidic/hot sulfur springs). In light of the challenges associated with the bulk-scale biodegradation of lignocellulose-rich agricultural residues, this review is organized to help delineate the fundamental aspects of metagenomics towards the assessment of the microbial consortia and novel molecules (such as biocatalysts) which are otherwise unidentifiable by conventional laboratory culturing techniques. The discussion is extended further to highlight the recent advancements (e.g., from 2011 to 2022) in metagenomic approaches for the isolation and purification of lignocellulolytic microbes from different ecosystems along with the technical challenges and prospects associated with their wide implementation and scale-up. This review should thus be one of the first comprehensive reports on the metagenomics-based analysis of different environmental samples for the isolation and purification of lignocellulose degrading enzymes.
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Affiliation(s)
- Deepak Kukkar
- Department of Biotechnology, Chandigarh University, Gharuan, Mohali - 140413, Punjab, India; University Centre for Research and Development, Chandigarh University, Gharuan, Mohali - 140413, Punjab, India.
| | | | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, Seongdong-gu, Wangsimni-ro, Seoul - 04763, South Korea.
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33
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Mei J, Li B, Su L, Zhou X, Duan E. Effects of potassium persulfate on nitrogen loss and microbial community during cow manure and corn straw composting. BIORESOURCE TECHNOLOGY 2022; 363:127919. [PMID: 36089132 DOI: 10.1016/j.biortech.2022.127919] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/02/2022] [Accepted: 09/04/2022] [Indexed: 06/15/2023]
Abstract
Strong oxidants can reduce the emission of NH3 during composting. But as a commonly used oxidant, the influence of persulfate on nitrogen transformation during composting is unclear. In this study, the effects of 0.3 %-1.2 % potassium persulfate (PS) on nitrogen losses and microbial community during air-dried cow manure composting were investigated. The results showed that PS could reduce nitrogen losses compared to the control. This was because it decreased pH and the maximum NH4+-N content of treatments, which was beneficial to nitrogen retention. In addition, Pseudoxanthomonas and Chelativorans were enriched compared to the control, which might be associated with NH4+-N transformation and nitrogen fixation. Meanwhile, PS increased the abundance of thermophilic lignocellulose degrading bacteria, and 0.3 % and 0.6 % PS increased the maximum temperature and the duration of the thermophilic period. This study indicated that PS could reduce nitrogen losses in composting and greatly influence nitrogen transforming and lignocellulose degrading bacteria.
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Affiliation(s)
- Juan Mei
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China; Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou 215009, China.
| | - Ben Li
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Lianghu Su
- Nanjing Institute of Environmental Sciences, Ministry of Environment and Ecology, Nanjing 210042, China
| | - Xiaojie Zhou
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Enshuai Duan
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
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Lin D, Fu Y, Li X, Wang L, Hou M, Hu D, Li Q, Zhang Z, Xu C, Qiu S, Wang Z, Boczkaj G. Application of persulfate-based oxidation processes to address diverse sustainability challenges: A critical review. JOURNAL OF HAZARDOUS MATERIALS 2022; 440:129722. [PMID: 35963083 DOI: 10.1016/j.jhazmat.2022.129722] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
Over the past years, persulfate (PS) is widely applied due to their high versatility and efficacy in decontamination and sterilization. While treatment of organic chemicals, remediation of soil and groundwater, sludge treatment, disinfection on pathogen microorganisms have been covered by most published reviews, there are no comprehensive and specific reviews on its application to address diverse sustainability challenges, including solid waste treatment, resources recovery and regeneration of ecomaterials. PS applications mainly rely on direct oxidation by PS itself or the reactive sulfate radical (SO4•-) or hydroxyl radical (•OH) from the activation of peroxodisulfate (PDS, S2O82-) or peroxymonosulfate (PMS, HSO5-) in SO4•--based advanced oxidation processes (SO4•--AOPs). From a broader perspective of environmental cleanup and sustainability, this review summarizes the various applications of PS except pollutant decontamination and elaborates the possible reaction mechanisms. Additionally, the differences between PS treatment and conventional technologies are highlighted. Challenges, research needs and future prospect are thus discussed to promote the development of the applications of PS-based oxidation processes in niche environmental fields. In all, this review is a call to pay more attention to the possibilities of PS application in practical resource reutilization and environmental protection except widely reported pollutant degradation.
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Affiliation(s)
- Dagang Lin
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Yu Fu
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Xiaodie Li
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Lingli Wang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Meiru Hou
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Dongdong Hu
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Qingchao Li
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Zhen Zhang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Chunxiao Xu
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Sifan Qiu
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Zhaohui Wang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Technology Innovation Center for Land Spatial Eco-restoration in Metropolitan Area, Ministry of Natural Resources, 3663 N. Zhongshan Road, Shanghai 200062, China; Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai 200241, China.
| | - Grzegorz Boczkaj
- Department of Sanitary Engineering, Faculty of Civil and Environmental Engineering, Gdańsk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland; EkoTech Center, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland
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35
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Yang H, Huang Y, Li K, Zhu P, Wang Y, Li X, Meng Q, Niu Q, Wang S, Li Q. Lignocellulosic depolymerization induced by ionic liquids regulating composting habitats based on metagenomics analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:76298-76309. [PMID: 35668255 DOI: 10.1007/s11356-022-21148-3] [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: 02/08/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
The application of ionic liquids with sawdust and fresh dairy manure was studied in composting. The degradation of organic matter (OM), dissolved organic matter (DOM), and lignocellulose was analyzed. The DOM decreased by 14.25 mg/g and 11.11 mg/g in experimental group (ILs) and control group (CK), respectively. OM decreased by 7.32% (CK) and 8.91% (ILs), respectively. The degradation rates of hemicellulose, lignin, and cellulose in ILs (56.62%, 42.01%, and 23.97%) were higher than in CK (38.39%, 39.82%, and 16.04%). Microbial community and carbohydrate-active enzymes (CAZymes) were analyzed based on metagenomics. Metagenomic analysis results showed that ionic liquids enriched Actinobacteria and Proteobacteria in composting. Compared with CK, the total abundance values of GH11, GH6, AA6, and AA3_2 in ILs increased by 13.98%, 10.12%, 11.21%, and 13.68%, respectively. Ionic liquids can improve the lignocellulosic degradation by regulating the environmental physicochemical parameters (temperature, pH, C/N) to promote the growth of Actinobacteria and Proteobacteria and carbohydrate-active enzymes (CAZymes) abundance. Therefore, ionic liquids are a promising additive in lignocellulosic waste composting.
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Affiliation(s)
- Hongxiang Yang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Yite Huang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Kecheng Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Pengfei Zhu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Yiwu Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Xiaolan Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Qingran Meng
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Qiuqi Niu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Susu 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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36
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Shen Q, Tang J, Sun H, Yao X, Wu Y, Wang X, Ye S. Straw waste promotes microbial functional diversity and lignocellulose degradation during the aerobic process of pig manure in an ectopic fermentation system via metagenomic analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:155637. [PMID: 35513151 DOI: 10.1016/j.scitotenv.2022.155637] [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: 02/28/2022] [Revised: 04/24/2022] [Accepted: 04/28/2022] [Indexed: 06/14/2023]
Abstract
This study compares the physicochemical properties, lignocellulose degradation, microbial community composition, and carbohydrate-active enzymes (CAZymes) in ectopic fermentation systems (EFS) of pig manure mixed with either conventional padding (C) or straw waste (A). The degradation rates of cellulose, hemicellulose, and lignin were found to be significantly higher in A (27.72%, 22.72%, and 18.80%, respectively) than in C (21.05%, 16.17%, and 11.69%, respectively) owing to the activities of lignocellulolytic enzymes. Metagenomics revealed that straw addition had a stronger effect on the bacterial community succession than fungi. The abundances of Sphingobacterium, Pseudomonas, and CAZymes were higher in A than in C, as well as the auxiliary activity enzymes, which are crucial for lignocellulose degradation. Redundancy analysis indicates a positive correlation between lignocellulose degradation and Sphingobacterium, Pseudomonas, Bacillus, and Actinobacteria contents. A structural equation model was applied to further verify that the increased microbial functional diversity was the primary driver of lignocellulosic degradation, which could be effectively regulated by the enhanced temperature with straw addition. Replacing traditional padding with straw can thus accelerate lignocellulosic degradation, promote microbial functional diversity, and improve the EFS efficiency.
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Affiliation(s)
- Qi Shen
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agriculture Science, Hangzhou, Zhejiang, PR China
| | - Jiangwu Tang
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agriculture Science, Hangzhou, Zhejiang, PR China.
| | - Hong Sun
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agriculture Science, Hangzhou, Zhejiang, PR China
| | - Xiaohong Yao
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agriculture Science, Hangzhou, Zhejiang, PR China
| | - Yifei Wu
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agriculture Science, Hangzhou, Zhejiang, PR China
| | - Xin Wang
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agriculture Science, Hangzhou, Zhejiang, PR China
| | - Shihao Ye
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, PR China
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37
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Wang S, Niu Q, Zhu P, Huang Y, Li K, Li Q. Metagenomics analysis unraveled the influence of sulfate radical-mediated compost nitrogen transformation process. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 317:115436. [PMID: 35653842 DOI: 10.1016/j.jenvman.2022.115436] [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: 12/02/2021] [Revised: 05/06/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
The mechanism of nitrogen transformation of sulfate radical (SO- 4⋅) in the process of composting is unclear. The objectives of this study were to investigate the influence of SO- 4⋅ on nitrogen biotransformation during composting and to compare the differences in physicochemical parameters and metagenomics analysis between CK (fresh dairy manure and bagasse pith) and PS (the composting raw materials added with potassium persulfate). The results indicated that SO-4⋅ guides electron transfer in the conversion of NH+4-N to NO- 3-N and breaches the extracellular polysaccharide (EPS) structure to promote nitrogen removal. Aminomonooxygenase (AMO) and nitrate reductase (NR) levels displayed an interactive relationship between microorganisms and substrates. Metagenomics analysis revealed distinct microbial community compositions and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways between nitrification and denitrification. Correlation analysis indicated that Methanobrevibacter, Bacillus and Pseudomonas were closely related to these processes. This work demonstrates the effect of SO- 4⋅ on nitrogen cycling and retention, and possible mechanisms of nitrification and denitrification during composting.
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Affiliation(s)
- Susu Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Qiuqi Niu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Pengfei Zhu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Yite Huang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Kecheng Li
- 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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38
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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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39
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Li K, Wang Y, Li X, Huang Y, Niu Q, Meng Q, Yang H, Li Q. In-situ generation of H 2O 2 by zero valent iron to control depolymerization of lignocellulose in composting niche. CHEMOSPHERE 2022; 302:134908. [PMID: 35551932 DOI: 10.1016/j.chemosphere.2022.134908] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 04/23/2022] [Accepted: 05/07/2022] [Indexed: 06/15/2023]
Abstract
Lignocellulosic degradation is a bottleneck of bioconversion during the composting process. In-situ generation of H2O2 in the composting system was an ideal method for efficiently promoting lignocellulase degradation, and zero valent iron (ZVI) was concerned because it can generate H2O2 by reducing dissolved oxygen. This study focused on the effects of ZVI treatment on lignocellulose degradation, microbial communities, and carbohydrate-active enzymes (CAZymes) genes during composting. Its results indicated that ZVI increased H2O2 content during composting, accompanied by the formation of •OH. The degradation rates of lignin, cellulose and hemicellulose in ZVI group (20.77%, 30.35% and 44.7%) were significantly higher than in CK group (17.01%, 26.12% and 38.5%). Metagenomic analysis showed that ZVI induced microbial growth that favored lignocellulose degradation, which increased the abundance of Actinobacteria and Firmicutes but reduced Proteobacteria. At the genus level, the abundance of Thermomonospora, Streptomyces, and Bacillus significantly increased. In addition, glycoside hydrolases and auxiliary activities were important CAZymes families of lignocellulose degradation, and their abundance was higher in the ZVI group. Redundancy analysis showed that the increased H2O2 and •OH content was a critical factor in improving lignocellulose degradation. Overall, H2O2 as a co-substrate enhanced the enzymatic efficiency, •OH unspecifically attacked lignocellulose, and the increase in functional microbial abundance was the main reason for promoting lignocellulose degradation in composting.
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Affiliation(s)
- Kecheng Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Yiwu Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Xiaolan Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Yite Huang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Qiuqi Niu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Qingran Meng
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
| | - Hongxiang Yang
- 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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40
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Niu Q, Li K, Yang H, Zhu P, Huang Y, Wang Y, Li X, Li Q. Exploring the effects of heavy metal passivation under Fenton-like reaction on the removal of antibiotic resistance genes during composting. BIORESOURCE TECHNOLOGY 2022; 359:127476. [PMID: 35714777 DOI: 10.1016/j.biortech.2022.127476] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/09/2022] [Accepted: 06/12/2022] [Indexed: 06/15/2023]
Abstract
This study aims to explore the succession of microbes carrying antibiotic resistance genes (ARGs), the relationship between heavy metal speciation and ARGs via Fenton-like reaction during composting. The results indicated that the passivation of Cu and Ni was more prominent, and the Fenton-like reaction promoted exceptionally the passivation of Zn, Ni and Mn. The removals of macrolides-lincosamids-streptogramins (MLS), aminoglycoside and tetracycline resistance genes were induced with the composting process, but the relative abundance of bacitracin resistance genes increased. Additionally, Proteobacteria, Firmicutes, Actinobacteria and Bacteroidetes were main carriers and disseminators of ARGs, and the Fenton-like reaction improved the contribution degree of Proteobacteria to bacitracin, tetracycline and aminoglycoside resistance genes. Redundancy analysis revealed the passivation of heavy metal contributed to the removal of tetracycline, MLS and aminoglycoside resistance genes. Conclusively, the Fenton-like reaction promoted the passivation of Zn, Ni and Mn, and controlled the abundance of bacitracin resistance genes in composting.
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Affiliation(s)
- Qiuqi Niu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Kecheng Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Hongxiang Yang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Pengfei Zhu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Yite Huang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Yiwu Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Xiaolan Li
- 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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41
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Green Public Areas and Urban Open Spaces Management: New GreenCAL Tool Algorithms and Circular Economy Implications. LAND 2022. [DOI: 10.3390/land11060886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Urban Open Spaces (UOS) are green infrastructures that provide social and ecosystem services. Green public areas contribute to mitigation and adaptation strategies for addressing climate changes, but their maintenance has a significant cost. Frequent grass cutting operations must be carried out during growing periods to ensure the safe livability of UOS to citizens. In the present paper, a geo database was developed to map green public areas of the city of Latina (Lazio Region, Central Italy) by using a multisource dataset according to the European INSPIRE Directive. The GreenCAL Tool was implemented. Two algorithms to determine UOS extension and the necessary budget for grass cutting operations are used, considering the contribution of different mowing (i.e., mulcher, lawnmower, or brush cutter) and UOS extension itself (~160 ha). The implemented processing chain allowed us to simulate forestation of abandoned areas and potential CO2 sequestration values. Two different scenarios of maintenance programs were also implemented to reduce more than 60% of operational cost according to: (1) different use of UOS; (2) their position within the urban area; (3) guidelines of Italian working group on public green management; and (4) management of vegetal residues. The management of the latter, derived by mowing, contribute to more than 23% of the budget allocated to maintain UOS. Besides the long-term environmental and health perspective, the short-term impact of the present applied research is relevant for a geomatic approach, green public procurements, as well as land use and climate interactions. The alternative management of UOS discussed in the present paper can also reduce organic waste production if the mowing within the UOS is managed as a resource for agriculture rather than urban waste.
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Liu Z, Wei Y, Li J, Ding GC. Integrating 16S rRNA amplicon metagenomics and selective culture for developing thermophilic bacterial inoculants to enhance manure composting. WASTE MANAGEMENT (NEW YORK, N.Y.) 2022; 144:357-365. [PMID: 35436715 DOI: 10.1016/j.wasman.2022.04.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 03/30/2022] [Accepted: 04/10/2022] [Indexed: 06/14/2023]
Abstract
Composting is an important method for treating and recycling organic waste, and the use of microbial inoculants can increase the efficiency of composting. Herein, we illustrate an approach that integrate 16S rRNA amplicon metagenomics and selective culture of thermophilic bacteria for the development of inoculants to improve manure composting. The 16S rRNA amplicon sequencing analysis revealed that Firmicutes and Actinobacteria were dominant in the composting mixture, and that different microbial hubs succeeded during the thermophilic stage. All isolated thermophilic bacteria were affiliated with the order Bacillales, such as Geobacillus, Bacillus, and Aeribacillus. These isolated thermophilic bacteria were grouped into 11 phylotypes, which shared >99% sequence identity to 0.15% to 5.32% of 16S rRNA reads by the amplicon sequencing. Three of these phylotypes transiently enriched during the thermophilic stage. Six thermophilic bacteria were selected from the three phylotypes to obtain seven microbial inoculants. Five out of seven of the microbial inoculants enhanced the thermophilic stage of composting by 16.9% to 52.2%. Three-dimensional excitation emission matrix analysis further revealed that two inoculants (Thermoactinomyces intermedius and Ureibacillus thermophilus) stimulated humification. Additionally, the 16S rRNA amplicon sequencing analysis revealed that inoculation with thermophilic bacteria enhanced the succession of the microbial community during composting. In conclusion, 16S rRNA amplicon metagenomics is a useful tool for the development of microbial inoculants to enhance manure composting.
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Affiliation(s)
- Zixiu Liu
- College of Resources and Environmental Science, Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing, China
| | - Yuquan Wei
- College of Resources and Environmental Science, Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing, China; Organic Recycling Institute (Suzhou) of China Agricultural University, Wuzhong District, 215128, Jiangsu Province, China
| | - Ji Li
- College of Resources and Environmental Science, Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing, China; Organic Recycling Institute (Suzhou) of China Agricultural University, Wuzhong District, 215128, Jiangsu Province, China
| | - Guo-Chun Ding
- College of Resources and Environmental Science, Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing, China; Organic Recycling Institute (Suzhou) of China Agricultural University, Wuzhong District, 215128, Jiangsu Province, China.
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Zhang X, Yang Y, Hao Ngo H, Guo W, Long T, Wang X, Zhang J, Sun F. Enhancement of urea removal from reclaimed water using thermally modified spent coffee ground biochar activated by adding peroxymonosulfate for ultrapure water production. BIORESOURCE TECHNOLOGY 2022; 349:126850. [PMID: 35167903 DOI: 10.1016/j.biortech.2022.126850] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 02/08/2022] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
To enhance the degradation of urea in reclaimed water for producing ultrapure water (UPW), thermally modified biochar (TBC) was prepared by secondary pyrolysis using spent coffee biochar with the function as an activator of peroxymonosulfate (PMS). Results showed that 94.4% of urea can be degraded effectively by the TBC-PMS system at the dosage of 0.4 g/L TBC and 2 g/L PMS under neutral and weak acid conditions. Moreover, urea removal mainly depended on the free radical pathway (SO4• - and OH•), especially OH•. The inorganic anions of TBC increased via secondary pyrolysis, especially carbonate and phosphate, resulting in higher electrical conductance (EC) value than the original biochar. It was conducive to activating PMS. As well, C-O, -OH worked as an active site in the TBC-PMS system, providing electrons and activating PMS. This work provides a novel strategy for UPW production using TBC-PMS system.
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Affiliation(s)
- Xinbo Zhang
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin 300384, China; School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yuanying Yang
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin 300384, China
| | - Huu Hao Ngo
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China; Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia.
| | - Wenshan Guo
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China; Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Tianwei Long
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin 300384, China
| | - Xiao Wang
- TG Hilyte Environment Technology (Beijing) Co., LTD., Beijing 100000, China
| | - Jianqing Zhang
- TG Hilyte Environment Technology (Beijing) Co., LTD., Beijing 100000, China
| | - Fengxia Sun
- College of Resources and Environment, Shandong Agricultural University, Taian 271000, China
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Wang Y, Li X, Li K, Huang Y, Yang H, Zhu P, Chi Z, Xu Y, Li Q. Signature of dissolved organic matter and microbial communities based on different oxygen levels response during distillers dried grains with solubles plus sugarcane pith co-fermentations. BIORESOURCE TECHNOLOGY 2022; 349:126868. [PMID: 35183724 DOI: 10.1016/j.biortech.2022.126868] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 02/14/2022] [Accepted: 02/15/2022] [Indexed: 06/14/2023]
Abstract
The objective of this study was to investigate the relationship between dissolved organic matter (DOM) and microbial communities during the co-fermentation of distillers dried grains with solubles (DDGS) and sugarcane pith at different oxygen levels. In aerobic fermentation (AF), the content of DOM decreased from 32.61 mg/g to 14.14 mg/g, and decreased from 32.61 mg/g to 30.83 mg/g in anaerobic fermentation (ANF). Phenols and alcohols were consumed first in AF, while lipids and proteins were consumed first in ANF. Degradation rates of cellulose, hemicellulose and lignin in AF (6.67%, 39.93%, 36.50%) were higher than those in ANF (0.69%, 18.36%, 9.12%). Firmicutes, Actinobacteriota and Ascomycota were the main phyla in community. Distance-based redundancy analysis showed that pH, organic matter (OM) and DOM were the main driving factors of microbial community succession.
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Affiliation(s)
- Yiwu Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Xiaolan Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Kecheng Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Yite Huang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Hongxiang Yang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Pengfei Zhu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Zhanyou Chi
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China
| | - Yongping Xu
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China
| | - Qunliang Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
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45
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Huang Y, Yang H, Li K, Meng Q, Wang S, Wang Y, Zhu P, Niu Q, Yan H, Li X, Li Q. Red mud conserved compost nitrogen by enhancing nitrogen fixation and inhibiting denitrification revealed via metagenomic analysis. BIORESOURCE TECHNOLOGY 2022; 346:126654. [PMID: 34979278 DOI: 10.1016/j.biortech.2021.126654] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/22/2021] [Accepted: 12/26/2021] [Indexed: 06/14/2023]
Abstract
The objective of this study was to investigate the effects of adding red mud (RM) on denitrification and nitrogen fixation in composting. The results revealed that the retentions of NH4+-N and NO3--N in experimental group (T) with RM were 16.20% and 7.27% higher than that in control group (CK) at the mature stage, respectively. The composition and structure of RM can effectively inhibit denitrification and enhance nitrogen fixation. Moreover, metagenomic analysis revealed that Actinobacteria and Proteobacteria were the main microorganisms in denitrification process, while Firmicutes were the main microorganisms in nitrogen fixation process. In T, denitrifying genes nirK and nosZ were 11% and 18% lower than those in CK, respectively, while nitrogen-fixing genes nifK and nifD were 18% and 34% higher than those in control group, respectively. Therefore, adding RM could reduce nitrogen loss and improve the quality of compost via enhancing nitrogen fixation and inhibiting denitrification process.
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Affiliation(s)
- Yite Huang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Hongxiang Yang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Kecheng Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Qingran Meng
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Susu Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Yiwu Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Pengfei Zhu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Qiuqi Niu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Hailong Yan
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Xiaolan Li
- 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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Zhang X, Yang Y, Hao Ngo H, Guo W, Sun F, Wang X, Zhang J, Long T. Urea removal in reclaimed water used for ultrapure water production by spent coffee biochar/granular activated carbon activating peroxymonosulfate and peroxydisulfate. BIORESOURCE TECHNOLOGY 2022; 343:126062. [PMID: 34601025 DOI: 10.1016/j.biortech.2021.126062] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 09/23/2021] [Accepted: 09/27/2021] [Indexed: 06/13/2023]
Abstract
This study evaluated the performance of spent coffee biochar (SCBC)/granular activated carbon (GAC) activating peroxymonosulfate (PMS) and peroxydisulfate (PDS) for urea degradation in reclaimed water used for ultrapure water production. Results showed that catalyst and oxidant wielded a great influence on urea removal. Of them, the GAC-PMS system could completely remove urea at the least oxidant (1 g/L) and catalyst dosage (0.2 g/L). GAC activating PMS mainly depended on graphite C structure and minor oxygen functional groups. However, the amounts of urea removed by 600BC-PMS and 900BC-PMS were 57% and 70%, respectively. In the PDS system, the urea removal through GAC-PDS could reach 90%, which mainly depends on the graphite C structure of GAC. Using the same conditions, the urea removal of 900BC-PDS was similar to GAC-PDS, so it has some potential as an alternative to commercial GAC.
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Affiliation(s)
- Xinbo Zhang
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin 300384, China
| | - Yuanying Yang
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin 300384, China
| | - Huu Hao Ngo
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China; Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia.
| | - Wenshan Guo
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China; Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Fengxia Sun
- College of Resources and Environment, Shandong Agricultural University, Taian 271000, China
| | - Xiao Wang
- TG Hilyte Environment Technology (Beijing) Co., LTD., Beijing 100000, China
| | - Jianqing Zhang
- TG Hilyte Environment Technology (Beijing) Co., LTD., Beijing 100000, China
| | - Tianwei Long
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin 300384, China
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47
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Niu Q, Meng Q, Yang H, Wang Y, Li X, Li G, Li Q. Humification process and mechanisms investigated by Fenton-like reaction and laccase functional expression during composting. BIORESOURCE TECHNOLOGY 2021; 341:125906. [PMID: 34523564 DOI: 10.1016/j.biortech.2021.125906] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/29/2021] [Accepted: 09/03/2021] [Indexed: 06/13/2023]
Abstract
This study aims to explore the impacts of the Fenton-like reaction on hydrogen peroxide, hydroxyl radicals, humic substance (HS) formation, laccase activity and microbial communities during composting to optimize composting performances. The results indicated that the activity of laccase in the presence of the Fenton-like reaction (HC) (35.92 U/g) was significantly higher than that in the control (CP) (29.56 U/g). The content of HS in HC (151.91 g/kg) was higher than that in CP (131.73 g/kg), and amides, quinones, aliphatic compounds and aromatic compounds were promoted to form HS in HC by 2D-FTIR-COS analysis. Proteobacteria contributed most greatly to AA1 at phylum level, Pseudomonas and Sphingomonas abundances increased in HC. Redundancy analysis indicated that there was a strong positive correlation among the Fenton-like reaction, laccase and HS. Conclusively, the Fenton-like reaction improved the activity of laccase, promoted the formation of HS and enhanced the quality of compost.
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Affiliation(s)
- Qiuqi Niu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Qingran Meng
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Hongxiang Yang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Yiwu Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Xiaolan Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Gen Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Qunliang Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China.
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