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Zeng T, Wang L, Ren X, Al-Dhabi NA, Sha H, Fu Y, Tang W, Zhang J. The effect of quorum sensing on cadmium- and lead-containing wastewater treatment using activated sludge: Removal efficiency, enzyme activity, and microbial community. ENVIRONMENTAL RESEARCH 2024; 252:118835. [PMID: 38582423 DOI: 10.1016/j.envres.2024.118835] [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: 12/29/2023] [Revised: 03/26/2024] [Accepted: 03/29/2024] [Indexed: 04/08/2024]
Abstract
Quorum sensing (QS) is prevalent in activated sludge processes; however, its essential role in the treatment of heavy metal wastewater has rarely been studied. Therefore, in this study, acyl homoserine lactone (AHL)-mediated QS was used to regulate the removal performance, enzyme activity, and microbial community of Cd- and Pb-containing wastewater in a sequencing batch reactor (SBR) over 30 cycles. The results showed that exogenous AHL strengthened the removal of Cd(II) and Pb(II) in their coexistence wastewater during the entire period. The removal of NH4+-N, total phosphorus, and chemical oxygen demand (COD) was also enhanced by the addition of AHL despite the coexistence of Cd(II) and Pb(II). Meanwhile, the protein content of extracellular polymeric substances was elevated and the microbial metabolism and antioxidative response were stimulated by the addition of AHL, which was beneficial for resistance to heavy metal stress and promoted pollutant removal by activated sludge. Microbial sequencing indicated that AHL optimized the microbial community structure, with the abundance of dominant taxa Proteobacteria and Unclassified_f_Enterobacteriaceae increasing by 73.9% and 59.2% maximally, respectively. This study offers valuable insights into the mechanisms underlying Cd(II) and Pb(II) removal as well as microbial community succession under AHL availability in industrial wastewater.
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Affiliation(s)
- Taotao Zeng
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, 421001, Hunan, China
| | - Liangqin Wang
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, 421001, Hunan, China
| | - Xiaoya Ren
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazard, School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China.
| | - Naif Abdullah Al-Dhabi
- Department of Botany and Microbiology, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Haichao Sha
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, 421001, Hunan, China
| | - Yusong Fu
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, 421001, Hunan, China
| | - Wangwang Tang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
| | - Jie Zhang
- State Key Laboratory of Urban Water Resources & Environment, Harbin Institute of Technology, Harbin, 150090, China.
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Zeng M, Li Z, Cheng Y, Long B, Wu J, Zeng Y, Liu Y. Stability of aerobic granular sludge for simultaneous nitrogen and Pb(II) removal from inorganic wastewater. ENVIRONMENTAL TECHNOLOGY 2024; 45:649-666. [PMID: 36039390 DOI: 10.1080/09593330.2022.2119607] [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: 04/16/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
ABSTRACTIn this paper, we proposed a strategy for the establishment of an aerobic granular sludge (AGS) system for simultaneous nitrogen and Pb(II) removal from inorganic wastewater. AGS was stored in lead nitrate solution to select functional bacteria resistant to lead poison, and then an AGS system for ammonia nitrogen (180-270 mg/L) and Pb(II) (15-30 mg/L) removal was established based on carbon dosing and a two-stage oxic/anoxic operational mode. After storage for 40 days, the stability of AGS decreased because specific oxygen uptake rate, nitrification rate and abundance of Nitrosomonas decreased to different degrees compared with those before storage. During the first 70 days of the recovery process, AGS in R1 (the blank reactor) and R2 (the control reactor) both experienced a first breakage and then regranulation process. The main properties of AGS in reactors R1 and R2 tended to be stable after days 106 and 117, respectively, but the structure of steady-state AGS in R2 was more compact. The total inorganic nitrogen (TIN) in effluent from R1 and R2 basically remained below 25 mg/L after days 98 and 90, respectively. The Pb(II) concentration in effluent from R2 was always below 0.3 mg/L. On day 140, the relative abundance of Nitrosomonas in R2 (6.17%) was significantly lower than that in R1 (12.15%), whereas the relative abundance of denitrifying bacteria was significantly higher than that in R1 (62.44% and 46.79%). The system removed 1 kg of influent TIN only consuming approximately 1.85 kg of carbon source, demonstrating clear advantages in energy savings.
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Affiliation(s)
- Mingjing Zeng
- School of Civil and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, People's Republic of China
| | - Zhenghao Li
- School of Civil and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, People's Republic of China
| | - Yuanyuan Cheng
- School of Civil and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, People's Republic of China
| | - Bei Long
- School of Civil and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, People's Republic of China
| | - Junfeng Wu
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, Henan, People's Republic of China
| | - Yu Zeng
- School of Civil and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, People's Republic of China
| | - Yong Liu
- School of Civil and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, People's Republic of China
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Basri HF, Anuar AN, Halim MHA, Yuzir MA, Muda K, Omoregie AI, Najib MZM. Aerobic granular sludge development using diatomite for low-strength wastewater treatment. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:420. [PMID: 36809517 DOI: 10.1007/s10661-023-11028-9] [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: 08/08/2022] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
This paper presents an assessment of the start-up performance of aerobic granular sludge (AGS) for the treatment of low-strength (chemical oxygen demand, COD < 200 mg/L) domestic wastewater by the application of a diatomite carrier. The feasibility was evaluated in terms of the start-up period and stability of the aerobic granules as well as COD and phosphate removal efficiencies. A single pilot-scale sequencing batch reactor (SBR) was used and operated separately for the control granulation and granulation with diatomite. Complete granulation (granulation rate ≥ 90%) was achieved within 20 days for the case of diatomite with an average influent COD concentration of 184 mg/L. In comparison, control granulation required 85 days to accomplish the same feat with a higher average influent COD concentration (253 mg/L). The presence of diatomite solidifies the core of the granules and enhances physical stability. AGS with diatomite recorded the strength and sludge volume index of 18 IC and 53 mL/g suspended solids (SS) which is superior to control AGS without diatomite (19.3 IC, 81 mL/g SS). Quick start-up and achievement of stable granules lead to an efficient COD (89%) and phosphate removal (74%) in 50 days of bioreactor operation. Interestingly, this study revealed that diatomite has some special mechanism in enhancing the removal of both COD and phosphate. Also, diatomite has a significant influence on microbial diversity. The result of this research implies that the advanced development of granular sludge by using diatomite can provide promising low-strength wastewater treatment.
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Affiliation(s)
- Hazlami Fikri Basri
- Department of Water and Environmental Engineering, School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia.
| | - Aznah Nor Anuar
- Department of Environment and Green Technology, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
| | - Mohd Hakim Ab Halim
- Department of Environment and Green Technology, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
| | - Muhammad Ali Yuzir
- Department of Environment and Green Technology, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
| | - Khalida Muda
- Department of Water and Environmental Engineering, School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Armstrong Ighodalo Omoregie
- Department of Water and Environmental Engineering, School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Mohamed Zuhaili Mohamed Najib
- Department of Water and Environmental Engineering, School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
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Jagaba AH, Kutty SRM, Isa MH, Ghaleb AAS, Lawal IM, Usman AK, Birniwa AH, Noor A, Abubakar S, Umaru I, Saeed AAH, Afolabi HK, Soja UB. Toxic Effects of Xenobiotic Compounds on the Microbial Community of Activated Sludge. CHEMBIOENG REVIEWS 2022. [DOI: 10.1002/cben.202100055] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Ahmad Hussaini Jagaba
- Universiti Teknologi PETRONAS Department of Civil and Environmental Engineering 32610 Bandar Seri Iskandar Perak Darul Ridzuan Malaysia
- Abubakar Tafawa Balewa University Department of Civil Engineering Bauchi Nigeria
| | - Shamsul Rahman Mohamed Kutty
- Universiti Teknologi PETRONAS Department of Civil and Environmental Engineering 32610 Bandar Seri Iskandar Perak Darul Ridzuan Malaysia
- Universiti Teknologi PETRONAS Centre of Urban Resource Sustainability Institute of Self-Sustainable Building 32610 Bandar Seri Iskandar Perak Darul Ridzuan Malaysia
| | - Mohamed Hasnain Isa
- Universiti Teknologi Brunei Civil Engineering Programme Faculty of Engineering Tungku Highway BE1410 Gadong Brunei Darussalam
| | - Aiban Abdulhakim Saeed Ghaleb
- Universiti Teknologi PETRONAS Department of Civil and Environmental Engineering 32610 Bandar Seri Iskandar Perak Darul Ridzuan Malaysia
| | - Ibrahim Mohammed Lawal
- Abubakar Tafawa Balewa University Department of Civil Engineering Bauchi Nigeria
- University of Strathclyde Department of Civil and Environmental Engineering Glasgow United Kingdom
| | | | | | - Azmatullah Noor
- Universiti Teknologi PETRONAS Department of Civil and Environmental Engineering 32610 Bandar Seri Iskandar Perak Darul Ridzuan Malaysia
| | - Sule Abubakar
- Abubakar Tafawa Balewa University Department of Civil Engineering Bauchi Nigeria
| | - Ibrahim Umaru
- Abubakar Tafawa Balewa University Department of Civil Engineering Bauchi Nigeria
| | - Anwar Ameen Hezam Saeed
- Universiti Teknologi PETRONAS Department of Civil and Environmental Engineering 32610 Bandar Seri Iskandar Perak Darul Ridzuan Malaysia
| | - Haruna Kolawole Afolabi
- Universiti Teknologi PETRONAS Department of Civil and Environmental Engineering 32610 Bandar Seri Iskandar Perak Darul Ridzuan Malaysia
| | - Usman Bala Soja
- Federal University Dutsin-Ma Department of Civil Engineering P.M.B. 5001 Dutsin-Ma Katsina State Nigeria
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Liu Z, Liu Q, Qi X, Li Y, Zhou G, Dai M, Miao M, Kong Q. Evolution and resistance of a microbial community exposed to Pb(II) wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 694:133722. [PMID: 31401502 DOI: 10.1016/j.scitotenv.2019.133722] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/30/2019] [Accepted: 08/01/2019] [Indexed: 06/10/2023]
Abstract
This study investigated the treatment performance of activated sludge on Pb(II)-containing wastewater, including contaminant removal efficiency, extracellular polymeric substances, pbrT gene content and the microbial community. The average removal efficiencies of ammonia nitrogen, chemical oxygen demand, total phosphorus, total nitrogen and Pb(II) were 40% ± 4%, 91% ± 3%, 95% ± 3%, 51% ± 5% and 92% ± 9% during the stable operation stage, respectively. Moreover, the extracellular polymeric substance -protein contents increased significantly from day 0 to day 60 (p < 0.05). The most abundant fluorescent component in extracellular polymeric substances was a humic acid-like substance, and its fluorescence intensity increased significantly from day 0 to day 60 (p < 0.05). Adsorption of negatively charged organic functional groups in extracellular polymeric substances was identified as a major component of the removal of Pb(II). Most of the denitrifying bacteria associated with nitrogen removal showed an increasing trend during the acclimation stage, which may have resulted in high total nitrogen removal efficiency. In addition, pbrT uptake protein was found to be responsible for the uptake of Pb(II) into cells. The abundance of the pbrT gene showed a downward trend (p < 0.05) after adding Pb(II), probably because expression of the pbrT gene was inhibited under Pb(II) stress. Sphingopyxis containing the pbrT gene was the dominant resistance genus, and its relative abundance increased significantly (p < 0.05) from day 0 to day 60. This study provided a theoretical basis for the treatment of Pb(II)-containing wastewater.
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Affiliation(s)
- Zhaosheng Liu
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China; Editorial Office of China's Population, Resources and Environment, Shandong Normal University, 88 Wenhua Donglu, Jinan 250014, Shandong, PR China
| | - Qi Liu
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China; College of Life Science, Shandong Normal University, 88 Wenhua Donglu, Jinan 250014, Shandong, PR China
| | - Xiaoyu Qi
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China
| | - Yexuan Li
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China; College of Life Science, Shandong Normal University, 88 Wenhua Donglu, Jinan 250014, Shandong, PR China
| | - Guangqing Zhou
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China; College of Life Science, Shandong Normal University, 88 Wenhua Donglu, Jinan 250014, Shandong, PR China
| | - Meixue Dai
- College of Life Science, Shandong Normal University, 88 Wenhua Donglu, Jinan 250014, Shandong, PR China
| | - Mingsheng Miao
- College of Life Science, Shandong Normal University, 88 Wenhua Donglu, Jinan 250014, Shandong, PR China
| | - Qiang Kong
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China; Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore.
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Li ZH, Zhu YM, Zhang YL, Zhang YR, He CB, Yang CJ. Characterization of aerobic granular sludge of different sizes for nitrogen and phosphorus removal. ENVIRONMENTAL TECHNOLOGY 2019; 40:3622-3631. [PMID: 29855222 DOI: 10.1080/09593330.2018.1483971] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 05/27/2018] [Indexed: 06/08/2023]
Abstract
Granular size plays a key role in the performance of the aerobic granular sludge (AGS). As the diameter of the granule increases, stratification may begin to appear due to the increase in mass transfer resistance. Aerobic granules harvested from a lab-scale anaerobic-aerobic sequencing batch reactor (AO-SBR) were classified into three categories according to their size: (a) 0.15-0.28 mm, (b) 0.28-0.45 mm and (c) larger than 0.45 mm. In this study, the categories were called small-size, medium-size and large-size granules, respectively. A fraction of the different forms of phosphate and denitrification efficiency was investigated in each category. Results show that small-size granules present much more easily mobile phosphorus than other granules. Moreover, the denitrification performance has been tested by using dumping and trickling patterns for COD and NO3--N feeding. The results demonstrated that the large-size granules exhibit poor denitrification rates, as opposed to the medium-size granules. Therefore, medium-size granules, with a size of 0.28-0.45 mm, are regarded as the most suitable granular size for AGS in this experiment from the perspective of denitrification and phosphorus removal.
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Affiliation(s)
- Zhi-Hua Li
- Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology , Xi'an , People's Republic of China
| | - Yuan-Mo Zhu
- Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology , Xi'an , People's Republic of China
| | - Ya-Li Zhang
- Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology , Xi'an , People's Republic of China
| | - Yu-Rong Zhang
- School of Civil Engineering, Lanzhou University of Technology , Lanzhou , People's Republic of China
| | - Chun-Bo He
- Department of Civil and Environmental Engineering, Norwegian University of Science and Technology , Trondheim , Norway
| | - Cheng-Jian Yang
- Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology , Xi'an , People's Republic of China
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Chen K, Zhao Z, Yang X, Lei Z, Zhang Z, Zhang S. Desorption trials and granular stability of chromium loaded aerobic granular sludge from synthetic domestic wastewater treatment. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.biteb.2018.01.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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