1
|
Hu H, Liu S, Li D, Zhou A, Cai W, Luo J, Liu Z, He Z, Yue X, Liu W. Sulfate-reducing bacteria decreases fractional pressure of H 2 to accelerate short-chain fatty acids production from waste activated sludge fermentation assisted with zero-valent iron activated sulfite pretreatment. Sci Total Environ 2024; 931:172898. [PMID: 38697543 DOI: 10.1016/j.scitotenv.2024.172898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/25/2024] [Accepted: 04/28/2024] [Indexed: 05/05/2024]
Abstract
The production of short-chain fatty acids (SCFAs) is constrained by substrate availability and the increased fractional pressure of H2 emitted by acidogenic/fermentative bacteria during anaerobic fermentation of waste activated sludge (WAS). This study introduced a novel approach employing zero-valent iron (ZVI)-activated sulfite pretreatment combined with H2-consuming sulfate-reducing bacteria (SRB) mediation to improve SCFAs, especially acetate production from WAS fermentation. Experimental results showed that the combined ZVI-activated sulfite and incomplete-oxidative SRB (io-SRB) process achieved a peak SCFAs production of 868.11 mg COD/L, with acetate accounting for 80.55 %, which was 7.90- and 2.18-fold higher than that obtained from raw WAS fermentation, respectively. This could be firstly attributed to the SO4- and OH generated by ZVI-activated sulfite, which significantly promoted WAS decomposition, e.g., soluble proteins and carbohydrates increased 14.3- and 10.8-fold, respectively, over those in raw WAS. The biodegradation of dissolved organic matter was subsequently enhanced by the synergistic interaction and H2 transfer between anaerobic fermentation bacteria (AFB) and io-SRB. The positive and negative correlations among AFB, nitrate-reducing bacteria (NRB) and the io-SRB consortia were revealed by molecular ecological network (MEN) and Mantel test. Moreover, the expression of functional genes was also improved, for instance, in relation to acetate formation, the relative abundances of phosphate acetyltransferase and acetate kinase was 0.002 % and 0.005 % higher than that in the control test, respectively. These findings emphasized the importance of sulfate radicals-based oxidation pretreatment and the collaborative relationships of multifunctional microbes on the value-added chemicals and energy recovery from sludge fermentation.
Collapse
Affiliation(s)
- Huitao Hu
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Engineer Research Institute of Sludge Disposition and Resources, Taiyuan University of Technology, Taiyuan 030000, China
| | - Shuli Liu
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Dengfei Li
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Engineer Research Institute of Sludge Disposition and Resources, Taiyuan University of Technology, Taiyuan 030000, China
| | - Aijuan Zhou
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Engineer Research Institute of Sludge Disposition and Resources, Taiyuan University of Technology, Taiyuan 030000, China.
| | - Weiwei Cai
- School of Environment, Beijing Jiaotong University, Beijing 100044, China
| | - Jingyang Luo
- College of Environment, Hohai University, Nanjing 210098, China
| | - Zhihong Liu
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Engineer Research Institute of Sludge Disposition and Resources, Taiyuan University of Technology, Taiyuan 030000, China
| | - Zhangwei He
- School of Environment and Municipal Engineering, Xi'an University of Architecture and Technology, Shanxi 710055, China
| | - Xiuping Yue
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Engineer Research Institute of Sludge Disposition and Resources, Taiyuan University of Technology, Taiyuan 030000, China
| | - Wenzong Liu
- Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen 518055, China
| |
Collapse
|
2
|
Tan H, Zhou A, Jia L, Duan Y, Liu Z, Zhao W, He Z, Liu W, Yue X. Tailored short-chain fatty acids conversion from waste activated sludge fermentation via persulfate oxidation and C3-C5 io-SRB metabolizers. J Environ Manage 2023; 346:118967. [PMID: 37714089 DOI: 10.1016/j.jenvman.2023.118967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/23/2023] [Accepted: 09/09/2023] [Indexed: 09/17/2023]
Abstract
Boosting acetate production from waste activated sludge (WAS) fermentation is often hindered by the inefficient solubilization in the hydrolysis step and the high hydrogen pressure ( [Formula: see text] ) during the acidogenesis of C3-C5 short-chain fatty acid (SCFAs), i.e., propionate (HPr), butyrate (HBu) and valerate (HVa). Therefore, this study employed persulfate (PS) oxidation and C3-C5 incomplete-oxidative sulfate reducing bacteria (io-SRB) metabolizers to tailor SCFAs conversion from WAS fermentation. The decomposition efficiency, performance of SCFAs production was investigated. Results showed that the PS significantly promoted WAS decomposition, with a dissolution rate of 39.4%, which is 26.0% higher than the un-treated test. Furthermore, SCFAs yields were increased to 462.7 ± 42 mg COD/g VSS in PS-HBu-SRB, which was 7.4 and 2.2 times higher than that of un-treated and sole PS tests, respectively. In particular, the sum of acetate and HPr reached the peak value of 85%, indicating that HBu-SRB mediation promoted the biotransformation of HBu and macromolecular organics by reducing the [Formula: see text] restriction. Meanwhile, sulfate radical (SO4∙-)-based oxidation (SR-AOPs) was effective in the decomposition of WAS, the oxidative product, i.e., sulfate served the necessary electron acceptor for the metabolism of io-SRB. Further analysis of Mantel test revealed the cluster of the functional genus and their interaction with environmental variables. Additionally, molecular ecological network analysis explored the potential synergistic and competitive relationships between critical genera. Additionally, the potential synergistic and competitive relationships between critical genera was explored by molecular ecological network analysis. This study provides new insights into the integration of SR-AOPs with microbial mediation in accelerating SCFAs production from WAS fermentation.
Collapse
Affiliation(s)
- Huijie Tan
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China; Shanxi Shanan Lide Environmental Science & Technology Co., LTD, Taiyuan, 030032, China.
| | - Aijuan Zhou
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China; Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, 030000, China.
| | - Lijun Jia
- Shanxi Shanan Lide Environmental Science & Technology Co., LTD, Taiyuan, 030032, China.
| | - Yanqing Duan
- Department of Environmental and Safety Engineering, Taiyuan Institute of Technology, Taiyuan, 030008, China.
| | - Zhihong Liu
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China.
| | - Wenjing Zhao
- Shanxi Shanan Lide Environmental Science & Technology Co., LTD, Taiyuan, 030032, China.
| | - Zhangwei He
- Shaanxi Key Laboratory of Environmental Engineering, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
| | - Wenzong Liu
- School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen, 51805, China.
| | - Xiuping Yue
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China; Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, 030000, China; Shanxi Engineer Research Institute of Sludge Disposition and Resources, Taiyuan University of Technology, Taiyuan, 030024, China.
| |
Collapse
|
3
|
Yan X, Guan DX, Li J, Song Y, Tao H, Zhang X, Ma M, Ji J, Zhao W. Fate of Cd during mineral transformation by sulfate-reducing bacteria in clay-size fractions from soils with high geochemical background. J Hazard Mater 2023; 459:132213. [PMID: 37549581 DOI: 10.1016/j.jhazmat.2023.132213] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/12/2023] [Accepted: 08/02/2023] [Indexed: 08/09/2023]
Abstract
Sulfate-reducing bacteria (SRB) can immobilize heavy metals in soils through biomineralization, and the parent rock and minerals in the soil are critical to the immobilization efficiency of SRB. To date, there is little knowledge about the fate of Cd associated with the parent rocks and minerals of soil during Cd immobilized by SRB. In this study, we created a model system using clay-size fraction of soil and SRB to explore the role of SRB in immobilizing Cd in soils from stratigraphic successions with high geochemical background. In the system, clay-size fractions (particle size < 2 µm) with concentration of Cd (0.24-2.84 mg/kg) were extracted from soils for bacteria inoculation. After SRB reaction for 10 days, the Cd fraction tended to transform into iron-manganese bound. Further, two clay-size fractions, i.e., the non-crystalline iron oxide (Fe-OX) and the crystalline iron oxide (Fe-CBD), were separated by extraction. The reaction of SRB with them verified the transformation of primary iron-bearing minerals into secondary iron-bearing minerals, which contributed to Cd redistribution. This study shows that SRB could exploit the composition and structure of minerals to induce mineral recrystallization, thereby aggravating Cd redistribution and immobilization in clay-size fractions from stratigraphic successions with high geochemical background.
Collapse
Affiliation(s)
- Xing Yan
- Chongqing Key Laboratory of Karst Environment, School of Geographical Sciences, Southwest University, Chongqing 400715, PR China
| | - Dong-Xing Guan
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Jie Li
- Center of Molecular Ecophysiology (CMEP), College of Resources and Environment, Southwest University, Chongqing 400715, PR China
| | - Yinxian Song
- Department of Geosciences, Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan Province, PR China
| | - Hua Tao
- Chongqing Geological and Mineral Resource Exploration and Development Bureau 607 Geological Team, Chongqing 401120, PR China
| | - Xianming Zhang
- Chongqing Key Laboratory of Karst Environment, School of Geographical Sciences, Southwest University, Chongqing 400715, PR China
| | - Ming Ma
- Center of Molecular Ecophysiology (CMEP), College of Resources and Environment, Southwest University, Chongqing 400715, PR China
| | - Junfeng Ji
- Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, PR China
| | - Wancang Zhao
- Chongqing Key Laboratory of Karst Environment, School of Geographical Sciences, Southwest University, Chongqing 400715, PR China.
| |
Collapse
|
4
|
Gao P, Fan K. Sulfur-oxidizing bacteria (SOB) and sulfate-reducing bacteria (SRB) in oil reservoir and biological control of SRB: a review. Arch Microbiol 2023; 205:162. [PMID: 37010699 DOI: 10.1007/s00203-023-03520-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 03/18/2023] [Accepted: 03/26/2023] [Indexed: 04/04/2023]
Abstract
Sulfur-oxidizing bacteria (SOB) and sulfate-reducing bacteria (SRB) inhabit oilfield production systems. Sulfur oxidation driven by SOB and dissimilatory sulfate reduction driven by SRB play important roles in sulfur cycle of oil reservoirs. More importantly, hydrogen sulfide produced by SRB is an acidic, flammable, and smelly toxic gas associated with reservoir souring, corrosion of oil-production facilities, and personnel safety. Effective control of SRB is urgently needed for the oil industry. This depends on an in-depth understanding of the microbial species that drive sulfur cycle and other related microorganisms in oil reservoir environments. Here, we identified SOB and SRB in produced brines of Qizhong block (Xinjiang Oilfield, China) from metagenome sequencing data based on reported SOB and SRB, reviewed metabolic pathways of sulfur oxidation and dissimilatory sulfate reduction, and ways for SRB control. The existing issues and future research of microbial sulfur cycle and SRB control are also discussed. Knowledge of the distribution of the microbial populations, their metabolic characteristics and interactions can help to develop an effective process to harness these microorganisms for oilfield production.
Collapse
Affiliation(s)
- Peike Gao
- College of Life Sciences, Qufu Normal University, Qufu, 273165, Shandong, China.
| | - Keyan Fan
- College of Life Sciences, Qufu Normal University, Qufu, 273165, Shandong, China
| |
Collapse
|
5
|
Barton LL, Duarte AG, Staicu LC. Genomic insight into iron acquisition by sulfate-reducing bacteria in microaerophilic environments. Biometals 2023; 36:339-350. [PMID: 35767096 DOI: 10.1007/s10534-022-00410-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 06/08/2022] [Indexed: 11/30/2022]
Abstract
Historically, sulfate-reducing bacteria (SRB) have been considered to be strict anaerobes, but reports in the past couple of decades indicate that SRB tolerate exposure to O2 and can even grow in aerophilic environments. With the transition from anaerobic to microaerophilic conditions, the uptake of Fe(III) from the environment by SRB would become important. In evaluating the metabolic capability for the uptake of iron, the genomes of 26 SRB, representing eight families, were examined. All SRB reviewed carry genes (feoA and feoB) for the ferrous uptake system to transport Fe(II) across the plasma membrane into the cytoplasm. In addition, all of the SRB genomes examined have putative genes for a canonical ABC transporter that may transport ferric siderophore or ferric chelated species from the environment. Gram-negative SRB have additional machinery to import ferric siderophores and ferric chelated species since they have the TonB system that can work alongside any of the outer membrane porins annotated in the genome. Included in this review is the discussion that SRB may use the putative siderophore uptake system to import metals other than iron.
Collapse
Affiliation(s)
- Larry L Barton
- Department of Biology, University of New Mexico, MSCO3 2020, Albuquerque, NM, 87131, USA
| | - Americo G Duarte
- Instituto de Tecnologia Química E Biológica António Xavier/Universidade NOVA de Lisboa, Av. República, Estação Agronómica Nacional, 2780-157, Oeiras, Portugal
| | - Lucian C Staicu
- Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland.
| |
Collapse
|
6
|
Liu S, Zhou A, Fan Y, Duan Y, Liu Z, He Z, Liu W, Yue X. Using heat-activated persulfate to accelerate short-chain fatty acids production from waste activated sludge fermentation triggered by sulfate-reducing microbial consortium. Sci Total Environ 2023; 861:160795. [PMID: 36493824 DOI: 10.1016/j.scitotenv.2022.160795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/04/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
Persulfate has been applied extensively for waste activated sludge (WAS) decomposition due to the strong oxidizing sulfate radical generated as a product. However, the efficiency is not improved without activation to produce free radicals. In this study, a novel coupling strategy of heat-activated persulfate (Heat_PS) pretreatment and sulfate-reducing bacteria (SRB) triggering was explored to enhance short-chain fatty acids (SCFAs) produced by WAS fermentation. The remaining sulfate acts as an essential acceptor of electrons for the metabolism of synergistic SRB, thereby boosting WAS acidification by energetic cooperation with anaerobic fermenters. The results showed that SCFAs yield in the Heat_PS + SRB group peaked at 431.89 mg COD/gVSS, with the proportion of acetate reaching 57.8 %. This was 6.33 and 1.75 times higher than that in raw and single Heat_PS treated WAS, respectively. Carbon balance revealed a conversion rate of 26.1 % of carbon content in WAS to SCFAs, with 4.5 % lower CO2 equivalents emitted than that in raw WAS fermentation by the assessments of environmental impacts. This was partially attributed to the strong decomposition of WAS by SO4•- and •OH oxidation from heat-activated PS and the SRB trigger. In addition, the synergistic relationship among acidogenic/fermentative bacteria and SRB consortia was further verified by the positive correlation among Desulfovibrio, the hydrolytic Escherichia-Shigella, Morganella and the fermetative Macellibacteroides and Bacteroides, as revealed by molecular ecological networks (MENs) analysis. The results of this study may highlight the cooperation of the synergistic micribial consortia as an additional perspective for the recovery of value-added biological metabolites from complex biotransformation.
Collapse
Affiliation(s)
- Shuli Liu
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Aijuan Zhou
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Engineer Research Institute of Sludge Disposition and Resources, Taiyuan University of Technology, Taiyuan 030024, China.
| | - Yaxin Fan
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Yanqing Duan
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Department of Environmental and Safety Engineering, Taiyuan Institute of Technology, Taiyuan 030008, China.
| | - Zhihong Liu
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Zhangwei He
- School of Environment and Municipal Engineering, Xi'An University of Architecture and Technology, Xi'An 710055, China
| | - Wenzong Liu
- School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 51805, China
| | - Xiuping Yue
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Engineer Research Institute of Sludge Disposition and Resources, Taiyuan University of Technology, Taiyuan 030024, China
| |
Collapse
|
7
|
Vásquez Y, Galvis JA, Pazos J, Vera C, Herrera O. Acid mine drainage treatment using zero-valent iron nanoparticles in biochemical passive reactors. Environ Technol 2022; 43:1988-2001. [PMID: 33308050 DOI: 10.1080/09593330.2020.1864024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 12/03/2020] [Indexed: 06/12/2023]
Abstract
Acid mine drainage (AMD) is the major effluent generated from metal and coal mines, causing serious ecological risks and degradation of aquatic habitats and surrounding soil quality. Biochemical passive reactors (BPRs) are an option for improving AMD affected water. This study investigates the effect of the size and concentration of zerovalent iron nanoparticles (nZVI) on the efficiency of batch BPRs during AMD remediation. Atomic force microscopy (AFM) and transmission electron microscopy (TEM) were also used as complementary techniques for the investigation of the changes in microbial cells and nZVI properties after the AMD remediation. The results from the batch experiment showed that the concentration of nZVI increases the pH and decreases ORP during AMD treatment, thus favouring the removal of metals. The results also suggest that metal sulfide precipitation occurred in all the batch with reactive mixture but was greater in reactors amended with nZVI of larger size. This study revealed that the presence of nZVI in the BPR leads to metal removal as well as the inhibition of sulfate-reducing bacteria (SRB) activity. Microscopy study indicated that the addition of nZVI creates a morphological change on certain microorganisms in which the cellular membrane was fully covered with nZVI, inducing cell lysis process. These results show that nZVI is a promising reactive material for the treatment of AMD in BPR systems.
Collapse
Affiliation(s)
- Yaneth Vásquez
- Faculty of Engineering and Basic Sciences, Department of Natural Sciences, Universidad Central, Bogotá, Colombia
| | - José A Galvis
- Faculty of Engineering and Basic Sciences, Department of Natural Sciences, Universidad Central, Bogotá, Colombia
| | - Jhon Pazos
- Convergence Science and Technology Cluster, Universidad Central, Bogotá, Colombia
| | - Camila Vera
- Faculty of Engineering and Basic Sciences, Department of Natural Sciences, Universidad Central, Bogotá, Colombia
| | - Oscar Herrera
- Faculty of Engineering and Basic Sciences, Department of Natural Sciences, Universidad Central, Bogotá, Colombia
| |
Collapse
|
8
|
Bounaga A, Alsanea A, Lyamlouli K, Zhou C, Zeroual Y, Boulif R, Rittmann BE. Microbial transformations by sulfur bacteria can recover value from phosphogypsum: A global problem and a possible solution. Biotechnol Adv 2022;:107949. [PMID: 35337932 DOI: 10.1016/j.biotechadv.2022.107949] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 03/16/2022] [Accepted: 03/18/2022] [Indexed: 11/22/2022]
Abstract
Rising global population and affluence are increasing demands for food production and the phosphorus (P) fertilizers needed to grow that food. Essential are new approaches for managing the growing amount of phosphogypsum (PG) that is a by-product of phosphoric-acid production from phosphate rock. Today, only ~15% of the worldwide production of PG is recycled, mainly for agriculture and road construction. This review addresses microbial valorization of PG through strategies that apply sulfur-transforming bacteria: sulfate-reducing bacteria (SRB) and sulfur-oxidizing bacteria (SOB). The focus is on recovering elemental sulfur (S0), which can be used to make the sulfuric acid needed to produce phosphoric acid from rock phosphate. Our review provides in-depth understanding of the microbiological, chemical, and technological bases for microbial reclamation of S0 from PG. The review presents the principles and practices for sulfate leaching from PG, reduction of sulfate to sulfide by SRB, and oxidation of sulfide to S0 by SOB. The choice of electron donor for SRB, control of oxygen delivery to SOB, and nutrient requirements are emphasized. Although microorganism-based technologies for PG reclamation are far from mature, the efficiency of such SRB- and SOB-based processes has been documented at laboratory and industrial scales. This review should spur biotechnological advances toward recovering value from PG.
Collapse
|
9
|
Niu ZS, Yan J, Guo XP, Xu M, Sun Y, Tou FY, Yin GY, Hou LJ, Liu M, Yang Y. Human activities can drive sulfate-reducing bacteria community in Chinese intertidal sediments by affecting metal distribution. Sci Total Environ 2021; 786:147490. [PMID: 33975107 DOI: 10.1016/j.scitotenv.2021.147490] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/28/2021] [Accepted: 04/28/2021] [Indexed: 06/12/2023]
Abstract
Sulfate-reducing bacteria (SRB), which are ubiquitous in intertidal sediments, play an important role in global sulfur and carbon cycles, and in the bioremediation of toxic metalloids/metals. Pollution from human activities is now a major challenge to the sustainable development of the intertidal zone, but little is known about how and to what extent various anthropic and/or natural factors affect the SRB community. In the current study, based on the dsrB gene, we investigated the SRB community in intertidal sediment along China's coastline. The results showed that dsrB gene abundances varied among different sampling sites, with the highest average abundance of SRB at XHR (near the Bohai Sea). The SRB community structures showed obvious spatial distribution patterns with latitude along the coastal areas of China, with Desulfobulbus generally being the dominant genus. Correlation analysis and redundancy discriminant analysis revealed that total organic carbon (TOC) and pH were significantly correlated with the richness of the SRB community, and salinity, pH, sulfate and climatic parameters could be the important natural factors influencing the composition of the SRB community. Moreover, metals, especially bioavailable metals, could regulate the diversity and composition of the SRB communities. Importantly, according to structural equation model (SEM) analysis, anthropic factors (e.g., population, economy and industrial activities) could drive SRB community diversity directly or by significantly affecting the concentrations of metals. This study provides the first comprehensive investigation of the direct and indirect anthropic factors on the SRB community in intertidal sediments on a continental scale.
Collapse
Affiliation(s)
- Zuo-Shun Niu
- Key Laboratory of Geographic Information Science of the Ministry of Education, School of Geographic Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Jia Yan
- Key Laboratory of Geographic Information Science of the Ministry of Education, School of Geographic Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Xing-Pan Guo
- Key Laboratory of Geographic Information Science of the Ministry of Education, School of Geographic Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Miao Xu
- Key Laboratory of Geographic Information Science of the Ministry of Education, School of Geographic Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yuan Sun
- Key Laboratory of Geographic Information Science of the Ministry of Education, School of Geographic Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Fei-Yun Tou
- Key Laboratory of Geographic Information Science of the Ministry of Education, School of Geographic Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Guo-Yu Yin
- Key Laboratory of Geographic Information Science of the Ministry of Education, School of Geographic Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Li-Jun Hou
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China; Yangtze Delta Estuarine Wetland Ecosystem Observation and Research Station, Ministry of Education & Shanghai, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China.
| | - Min Liu
- Key Laboratory of Geographic Information Science of the Ministry of Education, School of Geographic Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China; Institute of Eco-Chongming, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yi Yang
- Key Laboratory of Geographic Information Science of the Ministry of Education, School of Geographic Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China; State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China; Yangtze Delta Estuarine Wetland Ecosystem Observation and Research Station, Ministry of Education & Shanghai, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China.
| |
Collapse
|
10
|
Lin WH, Chen CC, Sheu YT, Tsang DCW, Lo KH, Kao CM. Growth inhibition of sulfate-reducing bacteria for trichloroethylene dechlorination enhancement. Environ Res 2020; 187:109629. [PMID: 32460090 DOI: 10.1016/j.envres.2020.109629] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/26/2020] [Accepted: 05/03/2020] [Indexed: 06/11/2023]
Abstract
Trichloroethylene (TCE) is a frequently found organic contaminant in polluted-groundwater. In this microcosm study, effects of hydrogen-producing bacteria [Clostridium butyricum (Clostridium sp.)] and inhibitor of sulfate-reducing bacteria (SRB) addition on the enhancement of TCE dechlorination were evaluated. Results indicate that Clostridium sp. supplement could effectively enhance TCE reductive dechlorination (97.4% of TCE removal) due to increased hydrogen concentration and Dehalococcoides (DHC) populations (increased to 1 × 104 gene copies/L). However, addition of Clostridium sp. also caused the increase in dsrA (dissimilatory sulfide reductase subunit A) (increased to 2 × 108 gene copies/L), and thus, part of the hydrogen was consumed by SRB, which would limit the effective application of hydrogen by DHC. Control of Clostridium sp. addition is a necessity to minimize the adverse impact of Clostridium sp. on DHC growth. Ferric citrate caused the slight raise of the oxidation-reduction state, which resulted in growth inhibition of SRB. Molybdate addition inhibited the growth of SRB, and thus, the dsrA concentrations (dropped from 4 × 107 to 9 × 105 gene copies/L) and sulfate reduction efficiency were decreased. Increased DHC populations (increased from 8 × 103 to 1 × 105 gene copies/L) were due to increased available hydrogen (increased from 0 to 2 mg/L), which enhanced TCE dechlorination (99.3% TCE removal). Metagenomic analyses show that a significant microbial diversity was detected in microcosms with different treatments. Clostridium sp., ferric citrate, and molybdate addition caused a decreased SRB communities and increased fatty acid production microbial communities (increased from 4.9% to 20.2%), which would be beneficial to the hydrogen production and TCE dechlorination processes.
Collapse
Affiliation(s)
- Wei-Han Lin
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Chien-Cheng Chen
- Department of Biotechnology, National Kaohsiung Normal University, Kaohsiung, Taiwan
| | - Yih-Terng Sheu
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Kai-Hung Lo
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Chih-Ming Kao
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan.
| |
Collapse
|
11
|
Kumar SS, Kumar V, Gnaneswar Gude V, Malyan SK, Pugazhendhi A. Alkalinity and salinity favor bioelectricity generation potential of Clostridium, Tetrathiobacter and Desulfovibrio consortium in Microbial Fuel Cells (MFC) treating sulfate-laden wastewater. Bioresour Technol 2020; 306:123110. [PMID: 32172090 DOI: 10.1016/j.biortech.2020.123110] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/26/2020] [Accepted: 02/28/2020] [Indexed: 06/10/2023]
Abstract
Clostridium, Tetrathiobacter and Desulfovibrio species are identified as suitable biocatalysts for treating organic-rich and sulfate-laden wastewater. Results from this study show that the power generation was much higher under alkaline conditions, i.e., pH of 8 when compared to neutral and acidic conditions. The effect of salinity was studied by varying the sodium chloride concentration at (1.5, 3, 4.5, 6, and 7.5 g/L NaCl) in anolyte. The highest power density of 1188 mW/m3 was produced at a sodium chloride concentration of 6 g/L in the anolyte. Results from cyclic voltammetry and linear scan voltammetry analysis suggested the direct electron transfer mechanism favored by cytb and cytc, Redox peaks observed for the biogenic synthesis of sulfite and sulfide support the complete one-step mineralization of sulfate. Bioelectrochemical behavior of the selectively enriched microbial consortium confirms its use for the treatment of wastewaters high in salinity and sulfate concentrations.
Collapse
Affiliation(s)
- Smita S Kumar
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, 10016 New Delhi, India; Department of Environmental Sciences, J.C. Bose University of Science and Technology, YMCA, Faridabad, 121006 Haryana, India
| | - Vivek Kumar
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, 10016 New Delhi, India
| | - Veera Gnaneswar Gude
- Department of Civil and Environmental Engineering, Mississippi State University, Mississippi State, MS 39762, United States
| | - Sandeep K Malyan
- Institute of Soil, Water, and Environmental Sciences, The Volcani Center, Agricultural Research Organization (ARO), Rishon LeZion 7505101, Israel
| | - Arivalagan Pugazhendhi
- Innovative Green Product Synthesis and Renewable Environment Development Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
| |
Collapse
|
12
|
Cao J, Zhang L, Hong J, Sun J, Jiang F. Different ferric dosing strategies could result in different control mechanisms of sulfide and methane production in sediments of gravity sewers. Water Res 2019; 164:114914. [PMID: 31400595 DOI: 10.1016/j.watres.2019.114914] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 07/15/2019] [Accepted: 07/23/2019] [Indexed: 06/10/2023]
Abstract
Ferric salt dosing is widely used to mitigate sulfide and methane emissions from sewers. In gravity sewers with sediments, responses of sulfate-reducing bacteria (SRB) and methanogenic archaea (MA) residing in different zones to Fe3+ dosing strategies still remain unknown. In this study, we investigated the changes in behavior of SRB and MA in different depths of sewer sediment using laboratory-scale sewer sediment reactors with different Fe3+ dosing strategies (different instant dosages and frequencies). All Fe3+ dosing strategies examined efficiently suppressed sulfide concentration for a short time, but the control mechanisms were different. When a low-dosage, high-frequency Fe3+ dosing strategy was employed, Fe3+ could not penetrate into the sewer sediment, therefore, the abundances of SRB and MA in all zones of sewer sediment did not change substantially. As a result, the active sulfide-producing and methane-producing zones kept unchanged. Sulfide was controlled mainly via chemical sulfide oxidation and precipitation, and methane formation was not influenced. In contrast, when a high-dosage, low-frequency Fe3+ dosing strategy was used, the SRB activity in the upper layer of the sewer sediment was nearly fully suppressed according to the down moving zones of sulfide production (from 0-5 mm to 20-25 mm) and lower sulfate reduction, in which sulfate reduction decreased by 56% in the long-term trial. The generated sulfide was further removed via chemical sulfide oxidation and precipitation. This strategy also significantly suppressed MA activity (21% reduction in methane production). However, considering a long-term satisfactory sulfide control, a low operational cost and less sediments deposited in gravity sewers, a low-dosage, high-frequency Fe3+ dosing strategy would be a more cost-effective solution for sulfide control in gravity sewers with thin (<20 mm) or thick (>20 mm) sediments if methane mitigation does not need to be taken into account.
Collapse
Affiliation(s)
- Juanjuan Cao
- Guangdong Provincial Engineering Technology Research Center for Wastewater Management and Treatment, School of Chemistry & Environment, South China Normal University, Guangzhou, China
| | - Liang Zhang
- Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Jiaying Hong
- Guangdong Provincial Engineering Technology Research Center for Wastewater Management and Treatment, School of Chemistry & Environment, South China Normal University, Guangzhou, China
| | - Jianliang Sun
- Guangdong Provincial Engineering Technology Research Center for Wastewater Management and Treatment, School of Chemistry & Environment, South China Normal University, Guangzhou, China
| | - Feng Jiang
- Guangdong Provincial Engineering Technology Research Center for Wastewater Management and Treatment, School of Chemistry & Environment, South China Normal University, Guangzhou, China; School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, China.
| |
Collapse
|
13
|
Zhang H, Song S, Jia Y, Wu D, Lu H. Stress-responses of activated sludge and anaerobic sulfate-reducing bacteria sludge under long-term ciprofloxacin exposure. Water Res 2019; 164:114964. [PMID: 31419666 DOI: 10.1016/j.watres.2019.114964] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 07/17/2019] [Accepted: 08/07/2019] [Indexed: 06/10/2023]
Abstract
The activated sludge (AS) and sulfate-reducing bacteria (SRB) sludge systems were continuously operated for 200 days in laboratory to investigate the stress-responses of these two sludge systems under ciprofloxacin (CIP) exposure. It was found that CIP was effectively removed by SRB sludge via adsorption and biodegradation, but little biodegradation in AS system. The CIP biodegradation by SRB sludge made the SRB sludge system more sustainable and tolerant to long-term CIP exposure than AS system with significant (p < 0.05) CIP desorption and decrease of CIP removal. CIP shaped the microbial communities in AS and SRB sludge, and significantly (p < 0.05) inhibited the family Nitrosomonadaceae (ammonia-oxidizing bacteria (AOB)) and genus Nitrospira (nitrite-oxidizing bacteria (NOB)/complete ammonia oxidizer(comammox)) and the nitrogen removal in AS system. Moreover, CIP posed the increase of genus Zoogloea-like organisms and the non-filamentous bulking of AS, e.g. 313 ± 12 mL/g of sludge volume index (SVI) at phase V (influent CIP = 5000 μg/L). The genus Desulfobacter was enriched in SRB sludge system under long-term CIP exposure, and stimulated chemical oxygen demand (COD) removal and sulfate reduction. The increase of genera Zoogloea, Acinetobacter and Flavobacterium in AS, and Zoogloea and Acinetobacter in SRB sludge systems under CIP exposure promoted extracellular polymeric substances (EPS) production and CIP adsorption for self-protection of microbes against CIP toxicity. The functional groups of N-H, O-H, C-O-C and C=O in EPS of AS and SRB sludge provided adsorption sites for CIP and impeded CIP impact on microbial cells. The findings of this study provide an insight into the stress-responses of AS and SRB sludge under long-term CIP exposure, and exhibit the great potential of treating CIP-laden wastewater by SRB sludge system.
Collapse
Affiliation(s)
- Huiqun Zhang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, 510275, China
| | - Shiliu Song
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, 510275, China
| | - Yanyan Jia
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong, China
| | - Di Wu
- Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong, China
| | - Hui Lu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, 510275, China.
| |
Collapse
|
14
|
Jia Y, Zhang H, Khanal SK, Yin L, Lu H. Insights into pharmaceuticals removal in an anaerobic sulfate-reducing bacteria sludge system. Water Res 2019; 161:191-201. [PMID: 31195335 DOI: 10.1016/j.watres.2019.06.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 06/03/2019] [Accepted: 06/04/2019] [Indexed: 06/09/2023]
Abstract
In this study, we examined eight typical and widely detected pharmaceuticals (PhAs) removal in an anaerobic sulfate-reducing bacteria (SRB) sludge system (five antibiotics: sulfadiazine (SD), sulfamethoxazole (SMX), trimethoprim (TMP), ciprofloxacin (CIP) and enoxacin (ENO), and three nonsteroidal anti-inflammatory drugs (NSAIDs): ibuprofen (IBU), ketoprofen (KET) and diclofenac (DIC)). The results showed that the SRB sludge had the higher removal efficacy (20 to 90%) for antibiotics (SD, SMX, TMP, CIP and ENO) than NSAIDs (<20%) via adsorption and biodegradation under different operating conditions. Based on a series of batch studies, fluoroquinolone antibiotics (CIP and ENO) were instantly (<15 min) removed (∼98%) via adsorption on SRB sludge with adsorption coefficient (Kd) as high as 25.3 ± 1.8 L/g-suspended solids (SS). And thermodynamics results indicated that the adsorption of CIP and ENO on SRB sludge was spontaneous (Gibbs free energy change (ΔG°) <0 kJ/mol), exothermic (enthalpy change (ΔH°) <0 kJ/mol), and the adsorption process involved both physisorption and chemisorption (absolute value of ΔH° = 20 to 80 kJ/mol). Three widely prescribed antibiotics (SMX, TMP and CIP) were further investigated for their possible biodegradation pathways along with functional enzymes involved through a series of batch experiments. The biotransformation intermediates indicated that biotransformations of SMX and CIP in SRB sludge system could be initiated from the cleavage of isoxazole and piperazinyl rings catalyzed by sulfite reductase (SR) and cytochrome P450 (CYP450) enzymes, respectively. TMP was likely biotransformed via O-demethylation and N-acetylation coupled with hydroxylation reactions with CYP450 enzymes as the main functional enzymes. This study provided new insight into PhAs removal in SRB sludge system, and has significant potential of implementing sulfur-mediated biological process for the treatment of PhAs containing wastewater.
Collapse
Affiliation(s)
- Yanyan Jia
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, PR China; Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong
| | - Huiqun Zhang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, PR China
| | - Samir Kumar Khanal
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, USA
| | - Linwan Yin
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, PR China
| | - Hui Lu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, PR China.
| |
Collapse
|
15
|
Rodrigues C, Núñez-Gómez D, Silveira DD, Lapolli FR, Lobo-Recio MA. Chitin as a substrate for the biostimulation of sulfate-reducing bacteria in the treatment of mine-impacted water (MIW). J Hazard Mater 2019; 375:330-338. [PMID: 30826155 DOI: 10.1016/j.jhazmat.2019.02.086] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 01/30/2019] [Accepted: 02/23/2019] [Indexed: 06/09/2023]
Abstract
This study aims to know the basis of sulfate-reducing bacteria (SRB) and chitin source relationship for the development of a biotreatment system for mine-impacted water (MIW). The MIW consists of river water impacted by coal acid mine drainage (AMD), an extremely acid effluent, rich in sulfate and dissolved metal ions, with a high pollutant potential. Chitin was used as metal ion sorbent and biostimulant of SRB, whose anaerobic dissimilatory metabolism reduces sulfate to sulfide. Microcosms were built in an oxygen-free atmosphere using chitin from two different sources: commercial chitin and shrimp shell waste, which contains calcium carbonate, an acidity removal agent, in addition to chitin. The results indicate that the shrimp shell performs best in removing sulfate (99.75%), iron (99.04%), aluminum (98.47%), and manganese (100%) ions. The iron ion sorption kinetics of the sediments were also studied; pseudo-second order behavior was observed. High-throughput sequencing analysis revealed the present bacterial community and its abundance in the microcosms after 11 and 30 treatment days: SRB were detected but were not the majority. Thus, this research aims to contribute to the sustainable treatment MIW through the employment of an abundant and low-cost biomaterial.
Collapse
Affiliation(s)
- Caroline Rodrigues
- Department of Environmental Engineering, Federal University of Santa Catarina (UFSC), 88040-900, Florianópolis, SC, Brazil.
| | - Dámaris Núñez-Gómez
- Department of Environmental Engineering, Federal University of Santa Catarina (UFSC), 88040-900, Florianópolis, SC, Brazil.
| | - Daniele D Silveira
- Department of Environmental Engineering, Federal University of Santa Catarina (UFSC), 88040-900, Florianópolis, SC, Brazil.
| | - Flávio R Lapolli
- Department of Environmental Engineering, Federal University of Santa Catarina (UFSC), 88040-900, Florianópolis, SC, Brazil.
| | - María A Lobo-Recio
- Department of Environmental Engineering, Federal University of Santa Catarina (UFSC), 88040-900, Florianópolis, SC, Brazil; Department of Energy and Sustainability, Federal University of Santa Catarina (UFSC), 88900-000, Araranguá, SC, Brazil.
| |
Collapse
|
16
|
Deja-Sikora E, Gołębiewski M, Kalwasińska A, Krawiec A, Kosobucki P, Walczak M. Comamonadaceae OTU as a Remnant of an Ancient Microbial Community in Sulfidic Waters. Microb Ecol 2019; 78:85-101. [PMID: 30341500 PMCID: PMC6560000 DOI: 10.1007/s00248-018-1270-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 10/03/2018] [Indexed: 05/25/2023]
Abstract
Intraterrestrial waters harbor microbial communities being extensively studied to understand microbial processes underlying subsurface ecosystem functioning. This paper provides the results of an investigation on the microbiomes of unique, subsurface sulfidic waters associated with Upper Jurassic, Cretaceous, and Miocene sediments. We used high-throughput 16S rDNA amplicon sequencing to reveal the structure of bacterial and archaeal communities in water samples differing in sulfide content (20-960 mg/dm3), salinity (1.3-3.2%), and depth of extraction (60-660 m below ground level). Composition of the bacterial communities strongly varied across the samples; however, the bacteria participating in the sulfur cycle were common in all sulfidic waters. The shallowest borehole water (60 m bgl) was dominated by sulfur-oxidizing Epsilonproteobacteria (Sulfurimonas, Sulfurovum). In the waters collected from greater depths (148-300 m bgl), the prevalence of Betaproteobacteria (Comamonadaceae) and sulfate/sulfur-reducing Deltaproteobacteria (Desulfopila, Desulfomicrobium, MSBL7) was observed. Sulfate reducers (members of Clostridia: Candidatus Desulforudis) were the most abundant bacteria in the deepest borehole water (660 m bgl). Out of 850 bacterial OTUs, only one, affiliated with the Comamonadaceae family, was found abundant (> 1% of total bacterial sequences) in all samples. Contribution of Archaea to the whole microbial communities was lower than 0.5%. Archaeal communities did not differ across the samples and they consisted of Halobacteriaceae. Out of 372 archaeal OTUs, five, belonging to the four genera Natronomonas, Halorubrum, Halobellus, and Halorhabdus, were the most numerous.
Collapse
Affiliation(s)
- Edyta Deja-Sikora
- Interdisciplinary Center for Modern Technologies, Nicolaus Copernicus University, Wilenska 4, 87-100, Toruń, Poland.
- Department of Environmental Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, Nicolaus Copernicus University, Lwowska 1, 87-100, Toruń, Poland.
| | - Marcin Gołębiewski
- Interdisciplinary Center for Modern Technologies, Nicolaus Copernicus University, Wilenska 4, 87-100, Toruń, Poland
- Chair of Plant Physiology and Biotechnology, Faculty of Biology and Environmental Protection, Nicolaus Copernicus University, Lwowska 1, 87-100, Toruń, Poland
| | - Agnieszka Kalwasińska
- Department of Environmental Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, Nicolaus Copernicus University, Lwowska 1, 87-100, Toruń, Poland
| | - Arkadiusz Krawiec
- Department of Geology and Hydrogeology, Faculty of Earth Sciences, Nicolaus Copernicus University, Lwowska 1, 87-100, Toruń, Poland
| | - Przemysław Kosobucki
- Department of Food Analysis and Environmental Protection, Faculty of Chemical Technology and Engineering, UTP University of Science and Technology, Seminaryjna 3, 85-326, Bydgoszcz, Poland
| | - Maciej Walczak
- Department of Environmental Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, Nicolaus Copernicus University, Lwowska 1, 87-100, Toruń, Poland.
| |
Collapse
|
17
|
Blázquez E, Baeza JA, Gabriel D, Guisasola A. Treatment of real flue gas desulfurization wastewater in an autotrophic biocathode in view of elemental sulfur recovery: Microbial communities involved. Sci Total Environ 2019; 657:945-952. [PMID: 30677960 DOI: 10.1016/j.scitotenv.2018.12.037] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 12/03/2018] [Accepted: 12/04/2018] [Indexed: 06/09/2023]
Abstract
Sulfur oxide emissions can lead to acidic precipitation and health concerns. Flue gas desulfurization (FGD) systems treat these emissions generating a wastewater with high-sulfate content. This work is the first attempt to treat this effluent with bioelectrochemical systems (BES) in order to recover elemental sulfur, a technology that allows the treatment of several wastewaters that lack of electron donor. The sulfate treatment and elemental sulfur recovery have been studied in a biocathode with simultaneous sulfate reduction to sulfide and partial sulfide oxidation, comparing the performance obtained with synthetic and real wastewater. A decrease of the sulfate removal rate (SRR) from 108 to 73mgS-SO42-L-1d-1 was observed coupled to an increase in the elemental sulfur recovery from 1.4 to 27mgS-S0L-1d-1. This elemental sulfur recovered as a solid from the real wastewater represented a 64% of the theoretical elemental sulfur produced (the elemental sulfur corresponded to a 72% of the solid weight). In addition, microbial communities analysis of the membrane and cathode biofilms and planktonic biomass showed that the real wastewater allowed a higher growth of sulfur oxidizing bacteria (SOB) adapted to more complex waters as Halothiobacillus sp. while decreasing the relative abundance of sulfate reducing bacteria (SRB).
Collapse
Affiliation(s)
- Enric Blázquez
- GENOCOV, Departament d'Enginyeria Química, Biològica i Ambiental, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
| | - Juan Antonio Baeza
- GENOCOV, Departament d'Enginyeria Química, Biològica i Ambiental, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
| | - David Gabriel
- GENOCOV, Departament d'Enginyeria Química, Biològica i Ambiental, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
| | - Albert Guisasola
- GENOCOV, Departament d'Enginyeria Química, Biològica i Ambiental, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
| |
Collapse
|
18
|
Zhang Y, Hua ZS, Lu H, Oehmen A, Guo J. Elucidating functional microorganisms and metabolic mechanisms in a novel engineered ecosystem integrating C, N, P and S biotransformation by metagenomics. Water Res 2019; 148:219-230. [PMID: 30388523 DOI: 10.1016/j.watres.2018.10.061] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 09/11/2018] [Accepted: 10/23/2018] [Indexed: 06/08/2023]
Abstract
Denitrifying sulfur conversion-associated enhanced biological phosphorous removal (DS-EBPR) system is not only a novel wastewater treatment process, but also an ideal model for microbial ecology in a community context. However, it exists the knowledge gap on the roles and interactions of functional microorganisms in the DS-EBPR system for carbon (C), nitrogen (N), phosphorus (P) and sulfur (S) bioconversions. We use genome-resolved metagenomics to build up an ecological model of microbial communities in a lab-scale DS-EBPR system with stable operation for more than 400 days. Our results yield 11 near-complete draft genomes that represent a substantial portion of the microbial community (39.4%). Sulfate-reducing bacteria (SRB) and sulfide-oxidizing bacteria (SOB) promote complex metabolic processes and interactions for C, N, P and S conversions. Bins 1-4 and 10 are considered as new potential polyphosphate-accumulating organisms (PAOs), in which Bins 1-4 can be considered as S-related PAOs (S-PAOs) with no previously cultivated or reported members. Our findings give an insight into a new ecological system with C, N, P and S simultaneous bioconversions and improve the understanding of interactions among SRB, SOB, denitrifiers and PAOs within a community context.
Collapse
Affiliation(s)
- Yan Zhang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, PR China; School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, PR China
| | - Zheng-Shuang Hua
- Department of Biological Sciences, Dartmouth College, 78 College Street, Hanover, NH, 03755, USA
| | - Hui Lu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, PR China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, 510275, PR China.
| | - Adrian Oehmen
- School of Chemical Engineering, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Jianhua Guo
- Advanced Water Management Centre, The University of Queensland, St Lucia, Queensland, 4072, Australia.
| |
Collapse
|
19
|
Jia Y, Khanal SK, Shu H, Zhang H, Chen GH, Lu H. Ciprofloxacin degradation in anaerobic sulfate-reducing bacteria (SRB) sludge system: Mechanism and pathways. Water Res 2018; 136:64-74. [PMID: 29494897 DOI: 10.1016/j.watres.2018.02.057] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 02/20/2018] [Accepted: 02/21/2018] [Indexed: 06/08/2023]
Abstract
Ciprofloxacin (CIP), a fluoroquinolone antibiotic, removal was examined for the first time, in an anaerobic sulfate-reducing bacteria (SRB) sludge system. About 28.0% of CIP was biodegraded by SRB sludge when the influent CIP concentration was 5000 μg/L. Some SRB genera with high tolerance to CIP (i.e. Desulfobacter), were enriched at CIP concentration of 5000 μg/L. The changes in antibiotic resistance genes (ARGs) of SRB sludge coupled with CIP biodegradation intermediates were used to understand the mechanism of CIP biodegradation for the first time. The percentage of efflux pump genes associated with ARGs increased, while the percentage of fluoroquinolone resistance genes that inhibit the DNA copy of bacteria decreased during prolonged exposure to CIP. It implies that some intracellular CIP was extruded into extracellular environment of microbial cells via efflux pump genes to reduce fluoroquinolone resistance genes accumulation caused by exposure to CIP. Additionally, the degradation products and the possible pathways of CIP biodegradation were also examined using the new method developed in this study. The results suggest that CIP was biodegraded intracellularly via desethylation reaction in piperazinyl ring and hydroxylation reaction catalyzed by cytochrome P450 enzymes. This study provides an insight into the mechanism and pathways of CIP biodegradation by SRB sludge, and opens-up a new opportunity for the treatment of CIP-containing wastewater using sulfur-mediated biological process.
Collapse
Affiliation(s)
- Yanyan Jia
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou, 510275, China
| | - Samir Kumar Khanal
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, USA
| | - Haoyue Shu
- State Key Laboratory of Biocontrol and Guangdong School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Huiqun Zhang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou, 510275, China
| | - Guang-Hao Chen
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Hui Lu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou, 510275, China.
| |
Collapse
|
20
|
Vasquez Y, Escobar MC, Saenz JS, Quiceno-Vallejo MF, Neculita CM, Arbeli Z, Roldan F. Effect of hydraulic retention time on microbial community in biochemical passive reactors during treatment of acid mine drainage. Bioresour Technol 2018; 247:624-632. [PMID: 28988048 DOI: 10.1016/j.biortech.2017.09.144] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 09/20/2017] [Accepted: 09/21/2017] [Indexed: 06/07/2023]
Abstract
The effect of hydraulic retention time (HRT) on the microbial community during acid mine drainage (AMD) treatment was investigated. Physicochemical and molecular (illumina and qPCR) analyses were performed on reactive mixtures collected from seven bioreactors in three-operation period (8, 17 and 36weeks). Long HRT (4day) favored the relative abundance of SRB, causing the increase of residual sulfides and short HRT (1day) affected the anaerobic conditions of the bioreactors and favored the presence the acidophilic chemolithotrophic microorganisms. Besides qPCR indicated that genes related to cellulose degradation were present in low copy numbers and were affected by the HRT. Finally, environmental factors (pH, organic source, metal sulfides, and sulfate concentrations) had significant impact on relative abundance of the phylogenetic lineages, rather than the types of lineages present in the reactive mixture. The findings of this study indicate that HRT affects the stability of passive bioreactors and their microbial communities.
Collapse
Affiliation(s)
- Yaneth Vasquez
- Departamento de Ciencias Naturales, Facultad de Ingeniería y Ciencias Básicas, Universidad Central, Calle 21 No. 4-40, Bogota, Colombia; Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biología, Pontificia Universidad Javeriana, Cra. 7 No. 40-62, Bogota, Colombia.
| | - Maria C Escobar
- Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biología, Pontificia Universidad Javeriana, Cra. 7 No. 40-62, Bogota, Colombia
| | - Johan S Saenz
- Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biología, Pontificia Universidad Javeriana, Cra. 7 No. 40-62, Bogota, Colombia
| | - Maria F Quiceno-Vallejo
- Departamento de Ciencias Naturales, Facultad de Ingeniería y Ciencias Básicas, Universidad Central, Calle 21 No. 4-40, Bogota, Colombia
| | - Carmen M Neculita
- Canada Research Chair in Treatment of Contaminated Mine Water, Research Institute on Mines and Environment (RIME), University of Quebec in Abitibi-Temiscamingue (UQAT), 445 Boulevard de l'Universite, Rouyn-Noranda, QC J9X 5E4, Canada
| | - Ziv Arbeli
- Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biología, Pontificia Universidad Javeriana, Cra. 7 No. 40-62, Bogota, Colombia
| | - Fabio Roldan
- Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biología, Pontificia Universidad Javeriana, Cra. 7 No. 40-62, Bogota, Colombia
| |
Collapse
|
21
|
Blázquez E, Gabriel D, Baeza JA, Guisasola A. Evaluation of key parameters on simultaneous sulfate reduction and sulfide oxidation in an autotrophic biocathode. Water Res 2017; 123:301-310. [PMID: 28675843 DOI: 10.1016/j.watres.2017.06.050] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 05/13/2017] [Accepted: 06/18/2017] [Indexed: 06/07/2023]
Abstract
Bioelectrochemical systems (BESs) are being studied as an alternative technology for the treatment of several kinds of wastewaters with a lack of electron donor such as high-strength sulfate wastewaters. This study evaluates different parameters that influence the simultaneous sulfate reduction and sulfide oxidation in an autotrophic biocathode: ion-exchange membrane (IEM), cathodic pH and cathode potential. Two different membranes were studied to evaluate sulfate and sulfide adsorption and diffusion from the cathode to the anode, observing that a cation-exchange membrane (CEM) widely decreased these effects. Three different cathode pH (5.5, 7 and 8.5) were studied in a long-term operation observing that pH = 7 was the optimal for sulfate removal, achieving reduction rates around 150 mg S-SO42- L-1 d-1. Microbial community analysis of the cathode biofilm demonstrated a high abundance of sulfate-reducing bacteria (SRB, 67% at pH 7, 60% at pH 8.5 and 42% at pH 5.5), mainly Desulfovibrio sp. at pH 5.5 and 7 and Desulfonatronum sp. at pH 8.5. The cathode potential also was studied from -0.7 to -1.2 V vs. SHE achieving sulfate removal rates higher than 700 mg S-SO42- L-1 d-1 at cathode potentials from -1.0 to -1.2 V vs. SHE. Also, the highest cathodic recovery and the highest sulfur species imbalance were observed at a cathode potential of -1.0 V vs. SHE, which indicated a higher elemental sulfur production.
Collapse
Affiliation(s)
- Enric Blázquez
- GENOCOV, Department of Chemical, Biological and Environmental Engineering, School of Engineering, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain
| | - David Gabriel
- GENOCOV, Department of Chemical, Biological and Environmental Engineering, School of Engineering, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain
| | - Juan Antonio Baeza
- GENOCOV, Department of Chemical, Biological and Environmental Engineering, School of Engineering, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain.
| | - Albert Guisasola
- GENOCOV, Department of Chemical, Biological and Environmental Engineering, School of Engineering, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain
| |
Collapse
|
22
|
Blázquez E, Gabriel D, Baeza JA, Guisasola A. Treatment of high-strength sulfate wastewater using an autotrophic biocathode in view of elemental sulfur recovery. Water Res 2016; 105:395-405. [PMID: 27662048 DOI: 10.1016/j.watres.2016.09.014] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 09/08/2016] [Accepted: 09/08/2016] [Indexed: 06/06/2023]
Abstract
Treatment of high-strength sulfate wastewaters is becoming a research issue not only for its optimal management but also for the possibility of recovering elemental sulfur. Moreover, sulfate-rich wastewater production is expected to grow due to the increased SO2 emission contained in flue gases which are treated by chemical absorption in water. Bioelectrochemical systems (BESs) are a promising alternative for sulfate reduction with a lack of electron donor, since hydrogen can be generated in situ from electricity. However, complete sulfate reduction leads to hydrogen sulfide as final sulfur compound. This work is the first to demonstrate that, in addition to an efficient sulfate-rich wastewater treatment, elemental sulfur could be recovered in a biocathode of a BES under oxygen limiting conditions. The key of the process is the biological oxidation of sulfide to elemental sulfur simultaneously to the sulfate reduction in the cathode using the oxygen produced in the anode that diffuses through the membrane. High sulfate reduction rates (up to 388 mg S-SO42- L-1 d-1) were observed linked to a low production of sulfide. Accumulation of elemental sulfur over graphite fibers of the biocathode was demonstrated by energy dispersive spectrometry, discarding the presence of metal sulfides. Microbial community analysis of the cathode biofilm demonstrated the presence of sulfate-reducing bacteria (mainly Desulfovibrio sp.) and sulfide-oxidizing bacteria (mainly Sulfuricurvum sp.). Hence, this biocathode allows simultaneous biological sulfate reduction and biological sulfide oxidation to elemental sulfur, opening up a novel process for recovering sulfur from sulfate-rich wastewaters.
Collapse
Affiliation(s)
- Enric Blázquez
- GENOCOV, Department of Chemical, Biological and Environmental Engineering, School of Engineering, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain
| | - David Gabriel
- GENOCOV, Department of Chemical, Biological and Environmental Engineering, School of Engineering, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain
| | - Juan Antonio Baeza
- GENOCOV, Department of Chemical, Biological and Environmental Engineering, School of Engineering, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain.
| | - Albert Guisasola
- GENOCOV, Department of Chemical, Biological and Environmental Engineering, School of Engineering, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain
| |
Collapse
|
23
|
An X, Baker P, Li H, Su J, Yu C, Cai C. The patterns of bacterial community and relationships between sulfate-reducing bacteria and hydrochemistry in sulfate-polluted groundwater of Baogang rare earth tailings. Environ Sci Pollut Res Int 2016; 23:21766-21779. [PMID: 27522211 DOI: 10.1007/s11356-016-7381-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Accepted: 08/02/2016] [Indexed: 06/06/2023]
Abstract
Microorganisms are the primary agents responsible for the modification, degradation, and/or detoxification of pollutants, and thus, they play a major role in their natural attenuation; yet, little is known about the structure and diversity of the subsurface community and relationships between microbial community and groundwater hydrochemistry. In this study, denaturing gradient gel electrophoresis (DGGE) and terminal restriction fragment length polymorphism (T-RFLP) allowed a comparative microbial community analysis of sulfate-contaminated groundwater samples from nine different wells in the region of Baogang rare earth tailings. Using real-time PCR, the abundance of total bacteria and the sulfate-reducing genes of aprA and dsrB were quantified. Statistical analyses showed a clear distinction of the microbial community diversity between the contaminated and uncontaminated samples, with Proteobacteria being the most dominant members of the microbial community. SO42- concentrations exerted a significant effect on the variation of the bacterial community (P < 0.05), with higher concentrations of sulfate reducing the microbial diversity (H' index), indicating that human activity (e.g., mining industries) was a possible factor disturbing the structure of the bacterial community. Quantitative analysis of the functional genes showed that the proportions of dsrB to total bacteria were 0.002-2.85 %, and the sulfate-reducing bacteria (SRB) were predominant within the prokaryotic community in the groundwater. The uncontaminated groundwater with low sulfate concentration harbored higher abundance of SRB than that in the polluted samples, while no significant correlation was observed between sulfate concentrations and SRB abundances in this study, suggesting other environmental factors possibly contributed to different distributions and abundances of SRB in the different sites. The results should facilitate expanded studies to identify robust microbe-environment interactions and provide a strong foundation for qualitative exploration of the bacterial diversity in rare earth tailings groundwater that might ultimately be incorporated into the remediation of environmental contamination.
Collapse
Affiliation(s)
- Xinli An
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Paul Baker
- Bangor University, Bangor, Gwynedd, LL572DG, UK
| | - Hu Li
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jianqiang Su
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| | - Changping Yu
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| | - Chao Cai
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
| |
Collapse
|
24
|
Vasquez Y, Escobar MC, Neculita CM, Arbeli Z, Roldan F. Biochemical passive reactors for treatment of acid mine drainage: Effect of hydraulic retention time on changes in efficiency, composition of reactive mixture, and microbial activity. Chemosphere 2016; 153:244-253. [PMID: 27016821 DOI: 10.1016/j.chemosphere.2016.03.052] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 03/11/2016] [Accepted: 03/12/2016] [Indexed: 06/05/2023]
Abstract
Biochemical passive treatment represents a promising option for the remediation of acid mine drainage. This study determined the effect of three hydraulic retention times (1, 2, and 4 days) on changes in system efficiency, reactive mixture, and microbial activity in bioreactors under upward flow conditions. Bioreactors were sacrificed in the weeks 8, 17 and 36, and the reactive mixture was sampled at the bottom, middle, and top layers. Physicochemical analyses were performed on reactive mixture post-treatment and correlated with sulfate-reducing bacteria and cellulolytic and dehydrogenase activity. All hydraulic retention times were efficient at increasing pH and alkalinity and removing sulfate (>60%) and metals (85-99% for Fe(2+) and 70-100% for Zn(2+)), except for Mn(2+). The longest hydraulic retention time (4 days) increased residual sulfides, deteriorated the quality of treated effluent and negatively impacted sulfate-reducing bacteria. Shortest hydraulic retention time (1 day) washed out biomass and increased input of dissolved oxygen in the reactors, leading to higher redox potential and decreasing metal removal efficiency. Concentrations of iron, zinc and metal sulfides were high in the bottom layer, especially with 2 day of hydraulic retention time. Sulfate-reducing bacteria, cellulolytic and dehydrogenase activity were higher in the middle layer at 4 days of hydraulic retention time. Hydraulic retention time had a strong influence on overall performance of passive reactors.
Collapse
Affiliation(s)
- Yaneth Vasquez
- Departamento de Ciencias Naturales, Universidad Central, Cra. 5 No. 21-38, Bogotá, Colombia; Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biologia, Pontificia Universidad Javeriana, Cra. 7 No. 40-62, Bogotá, Colombia
| | - Maria C Escobar
- Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biologia, Pontificia Universidad Javeriana, Cra. 7 No. 40-62, Bogotá, Colombia
| | - Carmen M Neculita
- Canada Research Chair on Passive Treatment of Contaminated Mine Water, Research Institute on Mines and Environment (RIME), University of Quebec in Abitibi-Temiscamingue (UQAT), 445 Boulevard de l'Universite, Rouyn-Noranda, QC J9X 5E4, Canada
| | - Ziv Arbeli
- Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biologia, Pontificia Universidad Javeriana, Cra. 7 No. 40-62, Bogotá, Colombia
| | - Fabio Roldan
- Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biologia, Pontificia Universidad Javeriana, Cra. 7 No. 40-62, Bogotá, Colombia.
| |
Collapse
|
25
|
Weng H, Dai Z, Ji Z, Gao C, Liu C. Release and control of hydrogen sulfide during sludge thermal drying. J Hazard Mater 2015; 296:61-67. [PMID: 25913672 DOI: 10.1016/j.jhazmat.2015.04.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 03/20/2015] [Accepted: 04/05/2015] [Indexed: 05/20/2023]
Abstract
The release of hydrogen sulfide (H2S) during sludge drying is a major environmental problem because of its toxicity to human health. A series of experiments were performed to investigate the mechanisms and factors controlling the H2S release. Results of this study show that: (1) the biomass and activity of sulfate-reducing bacteria (SRB) in sludge were the major factors controlling the amount of H2S release, (2) the sludge drying temperature had an important effect on both the extent and the timing of H2S release from the sludge, and (3) decreasing sludge pH increased the H2S release. Based on the findings from this study, a new system that integrates sludge drying and H2S gas treatment was developed, by which 97.5% of H2S and 99.7% of smoke released from sludge treatments was eliminated.
Collapse
Affiliation(s)
- Huanxin Weng
- Institute of Environment & Biogeochemistry, Zhejiang University, Hangzhou 310027, PR China.
| | - Zhixi Dai
- Institute of Environment & Biogeochemistry, Zhejiang University, Hangzhou 310027, PR China
| | - Zhongqiang Ji
- Institute of Environment & Biogeochemistry, Zhejiang University, Hangzhou 310027, PR China
| | - Caixia Gao
- Institute of Environment & Biogeochemistry, Zhejiang University, Hangzhou 310027, PR China
| | - Chongxuan Liu
- China University of Geosciences, Wuhan, PR China; Geochemistry, Fundamental and Computational Science Directorate, Pacific Northwest National Laboratory, USA.
| |
Collapse
|