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Wang Y, Wang H, Chen H. Response of aerobic activated sludge to edible oil exposure: Extracellular polymeric substance (EPS) characteristics and microbial community. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 335:117571. [PMID: 36871358 DOI: 10.1016/j.jenvman.2023.117571] [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: 12/18/2022] [Revised: 02/13/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
Aerobic activated sludge is widely used to degrade edible oil wastewater in wastewater treatment plants. During this process, the observed poor organics removal performance might be caused by poor sludge settling performance, which might be influenced by extracellular polymeric substances (EPS) and the structure of the microbial community. However, this hypothesis was not confirmed. Thus, this study investigated the response of activated sludge to 50% and 100% edible oil exposure in comparison to glucose, focusing on organics removal performance, characteristics of sludge, EPS, and microbial community structure. Results showed that both concentrations of edible oil influenced the systems' performance, although 100% edible oil showed more significant negative effects than 50% edible oil. The mechanisms behind the influence of edible oil on the aerobic activated sludge system and the differences between the different concentrations of edible oil were revealed. The worse system performance in the edible oil exposure system was due to the worse sludge settling performance, which was significantly affected by edible oil (p < 0.05). The sludge settling performance was mainly inhibited by promoting the formation of floating particles and the enrichment of filamentous bacteria in the 50% edible oil exposure system; biosurfactant secretion was also speculated as the reason, in addition to the above factors, in the 100% edible oil exposure system. The macroscopic largest floating particles, highest total relative abundance of foaming bacteria and biosurfactant production genera (34.32%), lowest surface tension (43.7 mN/m), and highest emulsifying activity (E24 = 25%) of EPS in 100% edible oil exposure systems provide strong evidence.
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Affiliation(s)
- Yanqiong Wang
- College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Hongwu Wang
- College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; Key Laboratory of Urban Water Supply, Water Saving and Water Environment Governance in the Yangtze River Delta of Ministry of Water Resources, Shanghai, 200092, China.
| | - Hongbin Chen
- College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; National Engineering Research Center for Urban Pollution Control, Tongji University, Shanghai, 200092, China
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2
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Pelevina AV, Berestovskaya YY, Grachev VA, Dorofeev AG, Slatinskaya OV, Maksimov GV, Kallistova AY, Nikolaev YA, Grouzdev EV, Ravin NV, Pimenov NV, Mardanov AV. A Phosphate-Accumulating Microbial Community in the Laboratory Bioreactor Predominated by “Candidatus Accumulibacter”. Microbiology (Reading) 2022. [DOI: 10.1134/s0026261722800232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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3
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Begmatov S, Dorofeev AG, Kadnikov VV, Beletsky AV, Pimenov NV, Ravin NV, Mardanov AV. The structure of microbial communities of activated sludge of large-scale wastewater treatment plants in the city of Moscow. Sci Rep 2022; 12:3458. [PMID: 35236881 PMCID: PMC8891259 DOI: 10.1038/s41598-022-07132-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 02/03/2022] [Indexed: 12/21/2022] Open
Abstract
Microbial communities in wastewater treatment plants (WWTPs) play a key role in water purification. Microbial communities of activated sludge (AS) vary extensively based on plant operating technology, influent characteristics and WWTP capacity. In this study we performed 16S rRNA gene profiling of AS at nine large-scale WWTPs responsible for the treatment of municipal sewage from the city of Moscow, Russia. Two plants employed conventional aerobic process, one plant-nitrification/denitrification technology, and six plants were operated with the University of Cape Town (UCT) anaerobic/anoxic/oxic process. Microbial communities were impacted by the technology and dominated by the Proteobacteria, Bacteroidota and Actinobacteriota. WWTPs employing the UCT process enabled efficient removal of not only organic matter, but also nitrogen and phosphorus, consistently with the high content of ammonia-oxidizing Nitrosomonas sp. and phosphate-accumulating bacteria. The latter group was represented by Candidatus Accumulibacter, Tetrasphaera sp. and denitrifiers. Co-occurrence network analysis provided information on key hub microorganisms in AS, which may be targeted for manipulating the AS stability and performance. Comparison of AS communities from WWTPs in Moscow and worldwide revealed that Moscow samples clustered together indicating that influent characteristics, related to social, cultural and environmental factors, could be more important than a plant operating technology.
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Affiliation(s)
- Shahjahon Begmatov
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Prosp, bld. 33-2, Moscow, Russia, 119071
| | - Alexander G Dorofeev
- Winogradsky Institute of Microbiology, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Prosp, bld. 33‑2, Moscow, Russia, 119071
| | - Vitaly V Kadnikov
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Prosp, bld. 33-2, Moscow, Russia, 119071
| | - Alexey V Beletsky
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Prosp, bld. 33-2, Moscow, Russia, 119071
| | - Nikolai V Pimenov
- Winogradsky Institute of Microbiology, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Prosp, bld. 33‑2, Moscow, Russia, 119071
| | - Nikolai V Ravin
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Prosp, bld. 33-2, Moscow, Russia, 119071.
| | - Andrey V Mardanov
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Prosp, bld. 33-2, Moscow, Russia, 119071.
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4
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Kallistova AY, Nikolaev YA, Mardanov AV, Berestovskaya YY, Grachev VA, Kostrikina NA, Pelevina AV, Ravin NV, Pimenov NV. Investigation of Formation and Development of Anammox Biofilms by Light, Epifluorescence, and Electron Microscopy. Microbiology (Reading) 2020. [DOI: 10.1134/s0026261720060077] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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5
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Cordero JA, He K, Okuta E, Echigo S, Itoh S. Effect of biodegradation on haloacetic acid formation potentials of anthropogenic compounds during chlorination. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:18117-18128. [PMID: 32172417 DOI: 10.1007/s11356-020-08125-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 02/17/2020] [Indexed: 06/10/2023]
Abstract
During drinking water treatment processes, anthropogenic compounds act as important precursors of disinfection by-products such as haloacetic acids (HAAs). Several transformations in these precursors occur prior to the disinfection stage, such as partial biodegradation. We hypothesized that this partial biodegradation of anthropogenic compounds potentially affects their HAA formation potentials (HAAFPs). In this study, the HAAFPs of 51 anthropogenic compounds after short-term contact (less than 1 h) and long-term contact (24 h) with activated sludge were compared. Considerable changes were observed particularly in trichloroacetic acid (TCAA) formation potentials (FPs) of phenols, demonstrating that biodegradation should be considered in investigations of potential precursors of HAAs. Phenols with low HAAFPs, such as hydroquinone, show higher HAAFPs after biodegradation, but HAAFPs of most phenols and anilines decreased after biodegradation. Thus, biodegradation will most likely have a positive impact on water quality from the standpoint of HAAFP reduction. For most aliphatic compounds, changes in HAAFP were negligible, but the dichloroacetic acid (DCAA) FP of acrylic acid largely increased. This study illustrates that biodegradation may have a large effect on the HAAFPs of anthropogenic compounds.
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Affiliation(s)
- José Andrés Cordero
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Nishikyo, Kyoto, 615-8540, Japan
| | - Kai He
- Research Center for Environmental Quality Management, Kyoto University, 1-2 Yumihama, Otsu, Shiga, 520-0811, Japan.
| | - Erika Okuta
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Nishikyo, Kyoto, 615-8540, Japan
| | - Shinya Echigo
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Nishikyo, Kyoto, 615-8540, Japan
- Department of Environmental Health, National Institute of Public Health, Wako, Saitama, 351-0197, Japan
| | - Sadahiko Itoh
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Nishikyo, Kyoto, 615-8540, Japan
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6
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Zhang L, Shen Z, Fang W, Gao G. Composition of bacterial communities in municipal wastewater treatment plant. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 689:1181-1191. [PMID: 31466158 DOI: 10.1016/j.scitotenv.2019.06.432] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 06/12/2019] [Accepted: 06/26/2019] [Indexed: 06/10/2023]
Abstract
Efforts to understand the environmental and biological factors that influence the dynamics of microbial communities have received substantial attention in microbial ecology. In this study, Illumina MiSeq high-throughput sequencing technology was used to examine the microbial community structure of activated sludge in municipal wastewater treatment systems (Chuzhou city, China). Overall, Proteobacteria, Chloroflexi, Actinobacteria, Acidobacteria, Actinobacteria, Bacteroidetes, and Firmicutes were the most dominant phyla in the five activated sludge samples. However, the community structure of nitrifying bacteria was relatively simple, and diversity was low; only AOB (Nitrosomonas) and NOB (Nitrospira) were detected. The dominant bacteria in the anaerobic sludge, anoxic sludge and oxic sludge were the same, and each bacterial species was relatively uniform, with differences only in proportions. Redundancy analysis indicated that pH, TP and COD were strong environmental factors influencing the bacterial community distribution. PICRUSt was used to describe the metabolic and functional abilities of the activated sludge bacterial communities. The results emphasized the vast genetic diversity of these organisms, which are involved in various essential processes such as amino acid transport and metabolism, energy production and conversion, cell wall/membrane/envelope/biogenesis, signal transduction mechanisms, and carbohydrate transport and metabolism. Activated sludge of municipal wastewater treatment systems can be ranked in the following order based on the 16S rRNA gene copy numbers of the detected phylotypes: S1 > S2 > S4 > S5 > S3. This study provides basic data and a theoretical analysis of the optimal design and operation in wastewater treatment plants.
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Affiliation(s)
- Lei Zhang
- School of Civil Engineering and Architecture, Chuzhou University, Chuzhou 239000, China; State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Zhen Shen
- School of Civil Engineering and Architecture, Chuzhou University, Chuzhou 239000, China
| | - Wangkai Fang
- School of Civil Engineering and Architecture, Chuzhou University, Chuzhou 239000, China
| | - Guang Gao
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
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7
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Li J, Peng Y, Zhang L, Liu J, Wang X, Gao R, Pang L, Zhou Y. Quantify the contribution of anammox for enhanced nitrogen removal through metagenomic analysis and mass balance in an anoxic moving bed biofilm reactor. WATER RESEARCH 2019; 160:178-187. [PMID: 31146189 DOI: 10.1016/j.watres.2019.05.070] [Citation(s) in RCA: 186] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 05/14/2019] [Accepted: 05/21/2019] [Indexed: 06/09/2023]
Abstract
In this study, enhanced nitrogen removal through in situ enrichment of anammox bacteria was successfully obtained in a full-scale municipal wastewater treatment plant (WWTP). The WWTP was an anaerobic-anoxic-oxic (AAO) process and upgraded by adding moving carriers into the anoxic zone. Enhanced nitrogen removal was obtained during almost two years of operation. The significant nitrogen removal might be associated with the in situ enrichment of anammox bacteria on the adding carriers, as revealed by the comprehensive results of molecular analysis and 15N-stable isotope tracing tests. Quantitative PCR results indicated that anammox bacteria in the anoxic-carrier biofilms presented a higher abundance than flocculent sludge (16S rRNA: P < 0.005; HzsB: P < 0.042). The 16S rRNA amplicon sequencing showed significant differences in the phylum Planctomycetes (P < 0.001) between anoxic-carrier biofilms and flocculent sludge. And metagenomic sequencing analysis further revealed the anammox relative abundance in the anoxic-carrier biofilms was significantly higher than the reported level in the flocculent sludge of conventional WWTPs. In addition, 15N-stable isotope tracing tests showed that anammox could be combined with nitrate reduction by the anoxic-carrier biofilms. Thus, enriched anammox bacteria might contribute to nitrogen loss and lead to improvements in the nitrogen removal, which was also supported by the mass balance analysis of organic carbon, nitrogen, and phosphorus of the WWTP. Overall, this study suggests that anoxic-carrier biofilms might be a candidate to enhance nitrogen removal through partial anammox in municipal WWTPs.
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Affiliation(s)
- Jianwei Li
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing, 100124, PR China
| | - Yongzhen Peng
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing, 100124, PR China.
| | - Liang Zhang
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing, 100124, PR China
| | - Jinjin Liu
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing, 100124, PR China
| | - Xiaodan Wang
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing, 100124, PR China
| | - Ruitao Gao
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing, 100124, PR China
| | - Lu Pang
- Xi'an Water Group Company Limited, Shaanxi, 710018, PR China
| | - Yaxu Zhou
- Xi'an Water Group Company Limited, Shaanxi, 710018, PR China
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8
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Miranda ARL, Antunes JEL, de Araujo FF, Melo VMM, Bezerra WM, Van den Brink PJ, Araujo ASFD. Less abundant bacterial groups are more affected than the most abundant groups in composted tannery sludge-treated soil. Sci Rep 2018; 8:11755. [PMID: 30082922 PMCID: PMC6079073 DOI: 10.1038/s41598-018-30292-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 07/27/2018] [Indexed: 11/13/2022] Open
Abstract
The application of composted tannery sludge (CTS) has promoted shifts in soil chemical properties and, therefore, can affect the soil bacterial community. This study assessed the effect of the CTS on the soil bacterial community over time. The CTS was applied at five rates (0, 2.5, 5, 10 and 20 t/ha), and the bacterial community was evaluated for 180 days. The principal curve response (PRC) analysis showed that the most abundant phyla were not influenced by the CTS rates over time, while the analysis of the bacterial community showed that some of the less abundant phyla were influenced by the CTS rates. Similarly, the PRC analysis for the bacterial classes showed the significant effect of the CTS rates. The redundancy analyses for the bacterial phyla and classes showed the relationship between the significant chemical properties and the bacterial community of the soil after the CTS amendment over time. Therefore, there was a shift in the bacterial community over time with the application of the composted tannery sludge. Our study has shown that the less abundant bacterial groups were more influenced by the CTS than the most abundant bacterial groups and that these bacterial groups were driven by soil chemical properties, primarily chromium (Cr) and the soil pH.
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Affiliation(s)
- Ana Roberta Lima Miranda
- Federal University of Piauí, Department of Agricultural Engineering and Soil Science, Teresina, 64049-550, Brazil
| | - Jadson Emanuel Lopes Antunes
- Federal University of Piauí, Department of Agricultural Engineering and Soil Science, Teresina, 64049-550, Brazil
| | | | | | | | - Paul J Van den Brink
- Wageningen University, Aquatic Ecology and Water Quality Management Group, Wageningen, P.O. Box 47, 6700 AA, The Netherlands
- Wageningen Environmental Research (Alterra), Wageningen, P.O. Box 47, 6700 AA, The Netherlands
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9
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Nikolaev Y, Kallistova A, Kevbrina M, Dorofeev A, Agarev A, Mardanov A, Ravin N, Kozlov M, Pimenov N. Novel design and optimisation of a nitritation/anammox set-up for ammonium removal from filtrate of digested sludge. ENVIRONMENTAL TECHNOLOGY 2018; 39:593-606. [PMID: 28303746 DOI: 10.1080/09593330.2017.1308442] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 03/13/2017] [Indexed: 06/06/2023]
Abstract
Although the anammox process is extensively applied for the treatment of NH4-rich wastewater, new technical solutions overcoming the operational difficulties remain an important task. An innovative design of anammox-based set-up was employed to improve sludge settling under high ammonium load. The set-up included a completely mixed bioreactor with suspended and immobilised activated sludge. To prevent sludge flotation, recycled suspended sludge was additionally treated in an aerated tank at dissolved oxygen (DO) concentration of 1.5 ± 0.2 mg/l followed by processing in a flow-homogeniser. Introduction of these elements resulted in a 3.5-fold increase in total nitrogen removal efficiency (TNRE). The bioreactor achieved maximal TNRE of 86% corresponding to total nitrogen removal rate of 0.77 kg N/m3/d under defined optimal conditions: temperature of 35 ± 2°C, DO of 0.6 ± 0.2 mg/l, hydraulic retention time of 12 h, and dose of suspended sludge of 1.5 ± 0.1 g total suspended solids (TSS)/l. A weakly attached sludge was first described as a technologically important factor. Suspended, weakly and firmly attached sludge exhibited the highest heterotrophic, nitrifying, and anammox activities, respectively. New probes were constructed to detect anammox bacteria by fluorescence in situ hybridisation. Probe for Candidatus 'Jettenia' could be recommended for widespread use.
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Affiliation(s)
- Yury Nikolaev
- a Wastewater and Sludge Treatment Division of Engineering and Technology Centre , JSC Mosvodokanal , Moscow , Russia
| | - Anna Kallistova
- b Winogradsky Institute of Microbiology , The Research Center of Biotechnology of Russian Academy of Sciences , Moscow , Russia
| | - Marina Kevbrina
- a Wastewater and Sludge Treatment Division of Engineering and Technology Centre , JSC Mosvodokanal , Moscow , Russia
| | - Alexander Dorofeev
- a Wastewater and Sludge Treatment Division of Engineering and Technology Centre , JSC Mosvodokanal , Moscow , Russia
| | - Anton Agarev
- a Wastewater and Sludge Treatment Division of Engineering and Technology Centre , JSC Mosvodokanal , Moscow , Russia
| | - Andrey Mardanov
- c Centre 'Bioengineering' , The Research Center of Biotechnology of Russian Academy of Sciences , Moscow , Russia
| | - Nikolay Ravin
- c Centre 'Bioengineering' , The Research Center of Biotechnology of Russian Academy of Sciences , Moscow , Russia
| | - Michail Kozlov
- a Wastewater and Sludge Treatment Division of Engineering and Technology Centre , JSC Mosvodokanal , Moscow , Russia
| | - Nikolay Pimenov
- b Winogradsky Institute of Microbiology , The Research Center of Biotechnology of Russian Academy of Sciences , Moscow , Russia
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10
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Sui Q, Jiang C, Yu D, Chen M, Zhang J, Wang Y, Wei Y. Performance of a sequencing-batch membrane bioreactor (SMBR) with an automatic control strategy treating high-strength swine wastewater. JOURNAL OF HAZARDOUS MATERIALS 2018; 342:210-219. [PMID: 28841468 DOI: 10.1016/j.jhazmat.2017.05.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 04/14/2017] [Accepted: 05/07/2017] [Indexed: 05/11/2023]
Abstract
Due to high-strength of organic matters, nutrients and pathogen, swine wastewater is a major source of pollution to rural environment and surface water. A sequencing-batch membrane bioreactor (SMBR) system with an automatic control strategy was developed for high-strength swine wastewater treatment. Short-cut nitrification and denitrification (SND) was achieved at nitrite accumulation rate of 83.6%, with removal rates of COD, NH4+-N and TN at 95%, 99% and 93%, respectively, at reduced HRT of 6.0 d and TN loading rate of 0.02kgN/(kgVSS d). With effective membrane separation, the reduction of total bacteria (TB) and putative pathogen were 2.77 logs and 1%, respectively. The shift of microbial community was well responded to controlling parameters. During the SND process, ammonia oxidizing bacteria (AOB) (Nitrosomonas, Nitrosospira) and nitrite oxidizing bacteria (NOB) (Nitrospira) were enriched by 52 times and reduced by 2 times, respectively. The denitrifiers (Thauera) were well enriched and the diversity was enhanced.
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Affiliation(s)
- Qianwen Sui
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Department of Water Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Chao Jiang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Department of Water Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Dawei Yu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Department of Water Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Meixue Chen
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Department of Water Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Junya Zhang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Department of Water Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yawei Wang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Department of Water Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yuansong Wei
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Department of Water Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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11
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Guo J, Ni BJ, Han X, Chen X, Bond P, Peng Y, Yuan Z. Unraveling microbial structure and diversity of activated sludge in a full-scale simultaneous nitrogen and phosphorus removal plant using metagenomic sequencing. Enzyme Microb Technol 2017; 102:16-25. [DOI: 10.1016/j.enzmictec.2017.03.009] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 03/19/2017] [Accepted: 03/20/2017] [Indexed: 12/25/2022]
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12
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Mardanov AV, Beletskii AV, Kallistova AY, Kotlyarov RY, Nikolaev YA, Kevbrina MV, Agarev AM, Ravin NV, Pimenov NV. Dynamics of the composition of a microbial consortium during start-up of a single-stage constant flow laboratory nitritation/anammox setup. Microbiology (Reading) 2016. [DOI: 10.1134/s002626171606014x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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13
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Yuan L, Zhi W, Liu Y, Smiley E, Gallagher D, Chen X, Dietrich AM, Zhang H. Degradation of cis- and trans-(4-methylcyclohexyl) methanol in activated sludge. JOURNAL OF HAZARDOUS MATERIALS 2016; 306:247-256. [PMID: 26745518 DOI: 10.1016/j.jhazmat.2015.12.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 11/30/2015] [Accepted: 12/11/2015] [Indexed: 06/05/2023]
Abstract
Crude (4-methylcyclohexyl)methanol (MCHM) caused extensive contamination of drinking water, wastewater, and the environment during the 2014 West Virginia Chemical Spill. However, information related to the environmental degradation of cis- and trans-4-MCHM, the main components of the crude 4-MCHM mixture, remains largely unknown. This study is among the first to investigate the degradation kinetics and transformation of 4-MCHM isomers in activated sludge. The 4-MCHM loss was mainly due to biodegradation to form carbon dioxide (CO2), plus acetic, propionic, isobutyric, and isovaleric acids with little contribution from adsorption. The biodegradation of 4-MCHM isomers followed the first-order kinetic model with half-lives higher than 0.50 days. Nitrate augmented the degradation of 4-MCHM isomers, while glucose and acetate decreased their degradation. One 4-MCHM-degrading bacterium isolated from activated sludge was identified as Acinetobacter bouvetii strain EU40 based on 16S rRNA gene sequences. This study will enhance the prediction of the environmental fate of 4-MCHM in water treatment systems.
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Affiliation(s)
- Li Yuan
- Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg 24061, USA; College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Wei Zhi
- Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg 24061, USA
| | - Yangsheng Liu
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Elizabeth Smiley
- Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg 24061, USA
| | - Daniel Gallagher
- Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg 24061, USA
| | - Xi Chen
- Department of Earth and Environmental Engineering, Columbia University, New York 10027, USA
| | - Andrea M Dietrich
- Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg 24061, USA
| | - Husen Zhang
- Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg 24061, USA.
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14
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Nikolaev YA, Kozlov MN, Kevbrina MV, Dorofeev AG, Pimenov NV, Kallistova AY, Grachev VA, Kazakova EA, Zharkov AV, Kuznetsov BB, Patutina EO, Bumazhkin BK. Candidatus “Jettenia moscovienalis” sp. nov., a new species of bacteria carrying out anaerobic ammonium oxidation. Microbiology (Reading) 2015. [DOI: 10.1134/s0026261715020101] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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