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Wu ZH, Yang XD, Huang LY, Li SL, Xia FY, Qiu YZ, Yi XZ, Jia P, Liao B, Liang JL, Shu WS, Li JT. In situ enrichment of sulphate-reducing microbial communities with different carbon sources stimulating the acid mine drainage sediments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 898:165584. [PMID: 37467988 DOI: 10.1016/j.scitotenv.2023.165584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 07/13/2023] [Accepted: 07/15/2023] [Indexed: 07/21/2023]
Abstract
The applications of sulphate-reducing microorganisms (SRMs) in acid mine drainage (AMD) treatment systems have received extensive attention due to their ability to reduce sulphate and stabilize metal(loid)s. Despite great phylogenetic diversity of SRMs, only a few have been used in AMD treatment bioreactors. In situ enrichment could be an efficient approach to select new effective SRMs for AMD treatment. Here, we performed in situ enrichment of SRMs in highly stratified AMD sediment cores using different kinds of carbon source mixture. The dsrAB (dissimilatory sulfite reductase) genes affiliated with nine phyla (two archaeal and seven bacterial phyla) and 26 genera were enriched. Remarkably, those genes affiliated with Aciduliprofundum and Vulcanisaeta were enriched in situ in AMD-related environments for the first time, and their relative abundances were negatively correlated with pH. Furthermore, 107 dsrAB-containing metagenome-assembled genomes (MAGs) were recovered from metagenomic datasets, with 14 phyla (two archaeal and 12 bacterial phyla) and 15 genera. The relative abundances of MAGs were positively correlated with total carbon and sulphate contents. Our findings expanded the diversity of SRMs that can be enriched in AMD sediment, and revealed the physiochemical properties that might affect the growth of SRMs, which provided guidance for AMD treatment bioreators.
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Affiliation(s)
- Zhuo-Hui Wu
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Xiao-Dan Yang
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Li-Ying Huang
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Shi-Lin Li
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Fei-Yun Xia
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Yong-Zhi Qiu
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Xin-Zhu Yi
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Pu Jia
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Bin Liao
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Jie-Liang Liang
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China.
| | - Wen-Sheng Shu
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Jin-Tian Li
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
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Yan S, Cheng KY, Ginige MP, Morris C, Deng X, Li J, Song S, Zheng G, Zhou L, Kaksonen AH. Sequential removal of selenate, nitrate and sulfate and recovery of elemental selenium in a multi-stage bioreactor process with redox potential feedback control. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127539. [PMID: 34800843 DOI: 10.1016/j.jhazmat.2021.127539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 10/11/2021] [Accepted: 10/15/2021] [Indexed: 06/13/2023]
Abstract
Bioreduction can facilitate oxyanions removal from wastewater. However, simultaneously removing selenate, nitrate and sulfate and recovering high-purity elemental selenium (Se0) from wastewater by a single system is difficult and may lead to carcinogenic selenium monosulfide (SeS) formation. To solve this issue, a two-stage biological fluidized bed (FBR) process with ethanol dosing based on oxidation-reduction potential (ORP) feedback control was developed in this study. FBR1 performance was first evaluated at various ORP setpoints (between -520 and -360 mV vs. Ag/AgCl) and elevated sulfate concentration. Subsequently, ethanol-fed FBR2 was used to reduce sulfate from FBR1 effluent, followed by an aerated sulfide oxidation reactor (SOR). At - 520 mV≤ ORPs≤ -480 mV, FBR1 removed 100 ± 0.1% nitrate and 99.7 ± 0.3% selenate without sulfate reduction. At ORPs ≥ -440 mV, selenate reduction was incomplete, whereas nitrate removal remained stable. Se0 recovery efficiency from FBR1 effluent was 37.5% with 71% Se purity. FBR2 converted 86% of the remaining sulfate in FBR1 effluent to hydrogen sulfide, but the over-oxidation of dissolved sulfide in SOR decreased the overall sulfate removal efficiency to ~46.3%. Overall, the two-stage FBR process with ORP feedback dosing of ethanol was effective for sequentially removing selenate, nitrate and sulfate and recovering Se0 from wastewater.
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Affiliation(s)
- Su Yan
- CSIRO Land and Water, 147 Underwood Avenue, Floreat, WA 6014, Australia; Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China; College of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Ka Yu Cheng
- CSIRO Land and Water, 147 Underwood Avenue, Floreat, WA 6014, Australia; School of Engineering and Information Technology, Murdoch University, Perth, WA 6150, Australia
| | - Maneesha P Ginige
- CSIRO Land and Water, 147 Underwood Avenue, Floreat, WA 6014, Australia
| | - Christina Morris
- CSIRO Land and Water, 147 Underwood Avenue, Floreat, WA 6014, Australia
| | - Xiao Deng
- CSIRO Land and Water, 147 Underwood Avenue, Floreat, WA 6014, Australia; International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
| | - Jian Li
- CSIRO Mineral Resources, Australian Resources and Research Centre, Kensington, WA 6151, Australia
| | - Shaokun Song
- CSIRO Land and Water, 147 Underwood Avenue, Floreat, WA 6014, Australia
| | - Guanyu Zheng
- Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Lixiang Zhou
- Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Anna H Kaksonen
- CSIRO Land and Water, 147 Underwood Avenue, Floreat, WA 6014, Australia; School of Biomedical Sciences, University of Western Australia, 35 Stirling Highway, Nedlands, WA 6009, Australia.
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3
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Li C, Wang R, Yang X, Zhou M, Pan X, Cai G, Zhang Y, Zhu G. Deeper investigation on methane generation from synthetic wastewater containing oxytetracycline in a scale up acidic anaerobic baffled reactor. BIORESOURCE TECHNOLOGY 2021; 333:125156. [PMID: 33906019 DOI: 10.1016/j.biortech.2021.125156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/05/2021] [Accepted: 04/07/2021] [Indexed: 06/12/2023]
Abstract
Acidic anaerobic digestion attracted much attention and interest due to its significant advantage in wastewater treatment. In the present study, methanogenic fermentation was successfully operated under acidic condition during treating wastewater containing oxytetracycline (OTC) in a scale up anaerobic baffled reactor (ABR). After start-up process, the pH value in the first compartment was 4.60 with high activity of methanogenesis. After stabilization, different OTC loading of 1.0, 3.3 and 5.0 g/m3/d was added in the influent for OTC removal. The resulted showed that OTC addition had little impact on the methane generation with whole COD and OTC removal rate of 95% and 60%, respectively. The microbial analysis, OTC addition could significantly influence the bacteria and archaea communities. To be more specific, Methanosaeta showed the highest relative abundance and tolerance to OTC under acidic condition. The present work supplied deeper insights into methane generation from acidic condition during wastewater containing OTC treatment.
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Affiliation(s)
- Chunxing Li
- School of Environment and Nature Resources, Renmin University of China, Beijing 100872, PR China; State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing 102249, PR China; Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Ruming Wang
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Xiaoyong Yang
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Mingdian Zhou
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Xiaofang Pan
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Guanjing Cai
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Yifeng Zhang
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Gefu Zhu
- School of Environment and Nature Resources, Renmin University of China, Beijing 100872, PR China.
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Demir EK, Yaman BN, Çelik PA, Puhakka JA, Sahinkaya E. Simulated acid mine drainage treatment in iron oxidizing ceramic membrane bioreactor with subsequent co-precipitation of iron and arsenic. WATER RESEARCH 2021; 201:117297. [PMID: 34118649 DOI: 10.1016/j.watres.2021.117297] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/17/2021] [Accepted: 05/24/2021] [Indexed: 06/12/2023]
Abstract
Acid mine drainage (AMD), generated in the active and abandoned mine sites, is characterized by low pH and high metal concentrations. One AMD treatment possibility is biologically oxidizing Fe2+ followed by precipitation through pH control. As compared to autotrophic iron oxidizing microbial community, a microbial community enriched in the presence of organic nutrients was hypothesized to yield higher biomass during commissioning the bioreactor. In this study, the treatment of Fe, Cu, Co, Mn, Zn, Ni, and As containing simulated AMD was studied using an iron-oxidizing ceramic membrane bioreactor (CMBR) at varying hydraulic retention times (HRTs) (6-24 h) and two different feed Fe2+ concentrations (250 and 750 mg/L). The impact of tryptone soya broth (TSB) on the CMBR performance was also investigated. Almost complete Fe2+ oxidation and sustainable flux at around 5.0 L/(m2.h) were obtained in the CMBR with the Alicyclobacillus tolerans and Acidiphilium cryptum dominated enrichment culture. The Fe2+ oxidation rate, as assessed in batch operation cycles of CMBR, increased significantly with increasing Fe2+ loading to the bioreactor. The iron oxidation rate decreased by the elimination of organic matter from the feed. The increase of the CMBR permeate pH to 3.5-4.0 resulted in selective co-precipitation of As and Fe (over 99%) with the generation of biogenic schwertmannite.
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Affiliation(s)
- Emir Kasım Demir
- Environmental and Energy Systems Engineering Program, Istanbul Medeniyet University, Istanbul, 34700, Turkey
| | - Belma Nural Yaman
- Department of Biomedical Engineering, Eskisehir Osmangazi University, Eskisehir, 26040, Turkey
| | - Pınar Aytar Çelik
- Environmental Protection and Control Program, Eskisehir Osmangazi University, Eskisehir, 26110, Turkey
| | - Jaakko A Puhakka
- Tampere University, Faculty of Engineering and Natural Sciences, P.O. Box 541, FI-33104 Tampere University, Finland
| | - Erkan Sahinkaya
- Environmental and Energy Systems Engineering Program, Istanbul Medeniyet University, Istanbul, 34700, Turkey; Department of Bioengineering, Istanbul Medeniyet University, Istanbul, 34700, Turkey.
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6
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Marais T, Huddy R, Harrison S, van Hille R. Effect of hydraulic residence time on biological sulphate reduction and elemental sulphur recovery in a single-stage hybrid linear flow channel reactor. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107717] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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7
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Oztemur G, Teksoy Basaran S, Tayran Z, Sahinkaya E. Fluidized bed membrane bioreactor achieves high sulfate reduction and filtration performances at moderate temperatures. CHEMOSPHERE 2020; 252:126587. [PMID: 32443270 DOI: 10.1016/j.chemosphere.2020.126587] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/09/2020] [Accepted: 03/21/2020] [Indexed: 06/11/2023]
Abstract
The study explored the potential of an up-flow sulfate reducing fluidized-bed membrane bioreactor (SR-FMBR) for biogenic sulfide generation at room temperature together with evaluation of filtration and fouling characteristics developed under various operational conditions. The SR-FMBR was tested at different COD/sulfate (mg/mg) ratios for a total of 127 days, initially at 35 °C and then at 23 °C. SR-FMBR was able to achieve COD oxidation and sulfate reduction efficiencies up to 98%, and allowed for biogenic sulfide generation up to 600 mg/L (97% of theoretical value) at room temperature. Alkalinity was generated as a result of sulfate reduction and averaged around 1900 mgCaCO3/L in the permeate. Hence, starting the bioreactor operation at 35 °C and then decreasing it to 23 °C did not adversely affect the process performance. High filtration fluxes up to 9.3 L/m2/h (LMH) could be maintained at employed hydraulic retention times between 24 h and 6 h. Observing relatively high filtration performance was due to keeping a high fraction of biomass attached to the carrier material, which decreased the cake formation potential on the membrane surface compared to conventional MBR operation. The SR-FMBR performance may further be tested for heavy metal removal under sulfidogenic conditions for acid mine drainage treatment.
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Affiliation(s)
- Guldenur Oztemur
- Environmental and Energy Systems Engineering Program, Istanbul Medeniyet University, 34700, Istanbul, Turkey
| | - Senem Teksoy Basaran
- Environmental and Energy Systems Engineering Program, Istanbul Medeniyet University, 34700, Istanbul, Turkey; Department of Bioengineering, Istanbul Medeniyet University, 34700, Istanbul, Turkey.
| | - Zeynep Tayran
- Environmental and Energy Systems Engineering Program, Istanbul Medeniyet University, 34700, Istanbul, Turkey
| | - Erkan Sahinkaya
- Environmental and Energy Systems Engineering Program, Istanbul Medeniyet University, 34700, Istanbul, Turkey; Department of Bioengineering, Istanbul Medeniyet University, 34700, Istanbul, Turkey
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Yan S, Cheng KY, Morris C, Douglas G, Ginige MP, Zheng G, Zhou L, Kaksonen AH. Sequential hydrotalcite precipitation and biological sulfate reduction for acid mine drainage treatment. CHEMOSPHERE 2020; 252:126570. [PMID: 32443266 DOI: 10.1016/j.chemosphere.2020.126570] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/09/2020] [Accepted: 03/19/2020] [Indexed: 06/11/2023]
Abstract
Hydrotalcite precipitation is a promising technology for the on-site treatment of acid mine drainage (AMD). This technology is underpinned by the synthesis of hydrotalcite that can effectively remove various contaminants. However, hydrotalcite precipitation has only limited capacity to facilitate sulfate removal from AMD. Therefore, the feasibility of coupling biological sulfate reduction with the hydrotalcite precipitation to maximize sulfate removal was evaluated in this study. AMD emanating from a gold mine (pH 4.3, sulfate 2000 mg L-1, with various metals including Al, Cd, Co, Cu, Fe, Mn, Ni, Zn) was first treated using the hydrotalcite precipitation. Subsequently, biological treatment of the post-hydrotalcite precipitation effluent was conducted in an ethanol-fed fluidized bed reactor (FBR) at a hydraulic retention time (HRT) of 0.8-1.6 day. The hydrotalcite precipitation readily neutralized the acidity of AMD and removed 10% of sulfate and over 99% of Al, Cd, Co, Cu, Fe, Mn, Ni, Zn. The overall sulfate removal increased to 73% with subsequent FBR treatment. Based on 454 pyrosequencing of 16S rRNA genes, the identified genera of sulfate-reducing bacteria (SRB) included Desulfovibrio, Desulfomicrobium and Desulfococcus. This study showed that sulfate-rich AMD can be effectively treated by integrating hydrotalcite precipitation and a biological sulfate reducing FBR.
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Affiliation(s)
- Su Yan
- CSIRO Land and Water, 147 Underwood Avenue, Floreat, Western Australia (WA), 6014, Australia; Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ka Yu Cheng
- CSIRO Land and Water, 147 Underwood Avenue, Floreat, Western Australia (WA), 6014, Australia; School of Engineering and Information Technology, Murdoch University, Perth, WA, Australia
| | - Christina Morris
- CSIRO Land and Water, 147 Underwood Avenue, Floreat, Western Australia (WA), 6014, Australia
| | - Grant Douglas
- CSIRO Land and Water, 147 Underwood Avenue, Floreat, Western Australia (WA), 6014, Australia
| | - Maneesha P Ginige
- CSIRO Land and Water, 147 Underwood Avenue, Floreat, Western Australia (WA), 6014, Australia
| | - Guanyu Zheng
- Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Lixiang Zhou
- Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Anna H Kaksonen
- CSIRO Land and Water, 147 Underwood Avenue, Floreat, Western Australia (WA), 6014, Australia; School of Biomedical Sciences, University of Western Australia, 35 Stirling Highway, Nedlands, WA, 6009, Australia.
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9
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Reyes-Alvarado LC, Hatzikioseyian A, Rene ER, Houbron E, Rustrian E, Esposito G, Lens PNL. Hydrodynamics and mathematical modelling in a low HRT inverse fluidized-bed reactor for biological sulphate reduction. Bioprocess Biosyst Eng 2018; 41:1869-1882. [DOI: 10.1007/s00449-018-2008-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 09/09/2018] [Indexed: 11/28/2022]
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Jiang H, Nie H, Ding J, Stinner W, Sun K, Zhou H. The startup performance and microbial distribution of an anaerobic baffled reactor (ABR) treating medium-strength synthetic industrial wastewater. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2018; 53:46-54. [PMID: 29035674 DOI: 10.1080/10934529.2017.1368297] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, an anaerobic baffled reactor (ABR) with seven chambers was applied to treat medium-strength synthetic industrial wastewater (MSIW). The performance of startup and shock test on treating MSIW was investigated. During the acclimation process, the chemical oxygen demand (COD) of MSIW gradually increased from 0 to 2,000 mg L-1, and the COD removal finally reached 90%. At shock test, the feeding COD concentration increased by one-fifth and the reactor adapted very well with a COD removal of 82%. In a stable state, Comamonas, Smithella, Syntrophomonas and Pseudomonas were the main populations of bacteria, while the predominant methanogen was Methanobacterium. The results of chemical and microbiological analysis indicated the significant advantages of ABR, including buffering shocks, separating stages with matching microorganisms and promoting syntrophism. Meanwhile, the strategies for acclimation and operation were of great importance. Further work can test reactor performance in the treatment of actual industrial wastewater.
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Affiliation(s)
- Hao Jiang
- a Institute of New Energy, State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Biogas Upgrading , China University of Petroleum , Beijing , China
| | - Hong Nie
- a Institute of New Energy, State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Biogas Upgrading , China University of Petroleum , Beijing , China
| | - Jiangtao Ding
- a Institute of New Energy, State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Biogas Upgrading , China University of Petroleum , Beijing , China
| | - Walter Stinner
- b Biochemical Conversion Department , Deutsches Biomasseforschungszentrum gGmbH (DBFZ) , Leipzig , Germany
| | - Kaixuan Sun
- a Institute of New Energy, State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Biogas Upgrading , China University of Petroleum , Beijing , China
| | - Hongjun Zhou
- a Institute of New Energy, State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Biogas Upgrading , China University of Petroleum , Beijing , China
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11
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An overview of sulfidogenic biological reactors for the simultaneous treatment of sulfate and heavy metal rich wastewater. Chem Eng Sci 2017. [DOI: 10.1016/j.ces.2016.11.002] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Zhao J, Fang D, Zhang P, Zhou L. Long-term effects of increasing acidity on low-pH sulfate-reducing bioprocess and bacterial community. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:4067-4076. [PMID: 27933494 DOI: 10.1007/s11356-016-8147-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 11/23/2016] [Indexed: 06/06/2023]
Abstract
An ethanol-fed, sulfate-reducing anaerobic baffled reactor was operated over a period of 260 days to assess the effects of sequentially more acidic conditions (pH 4.5-2.5) on sulfate reduction and bacterial community. Results showed that the reactor could reduce sulfate and generate alkalinity at progressively lower pH values of 4.5, 3.5, and 2.5 in a synthetic wastewater containing 2500 mg/L sulfate. About 93.9% of the influent sulfate was removed at a rate of 4691 mg/L/day, and the effluent pH was increased to 6.8 even when challenged with influent pH as low as 2.5. Illumina MiSeq sequencing revealed that a step decrease in influent pH from 4.5 to 2.5 resulted in noticeable decrease in the biodiversity inside the sulfidogenic reactor. Additionally, complete and incomplete organic oxidizers Desulfobacter and Desulfovibrio were observed to be the most dominant sulfate reducers at pH 2.5, sustaining the low-pH, high-rate sulfate removal and alkalinity generation.
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Affiliation(s)
- Jing Zhao
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Di Fang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Pengfei Zhang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Lixiang Zhou
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
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Evaluation of A Novel Split-Feeding Anaerobic/Oxic Baffled Reactor (A/OBR) For Foodwaste Anaerobic Digestate: Performance, Modeling and Bacterial Community. Sci Rep 2016; 6:34640. [PMID: 27708368 PMCID: PMC5052610 DOI: 10.1038/srep34640] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 09/16/2016] [Indexed: 01/04/2023] Open
Abstract
To enhance the treatment efficiency from an anaerobic digester, a novel six-compartment anaerobic/oxic baffled reactor (A/OBR) was employed. Two kinds of split-feeding A/OBRs R2 and R3, with influent fed in the 1st, 3rd and 5th compartment of the reactor simultaneously at the respective ratios of 6:3:1 and 6:2:2, were compared with the regular-feeding reactor R1 when all influent was fed in the 1st compartment (control). Three aspects, the COD removal, the hydraulic characteristics and the bacterial community, were systematically investigated, compared and evaluated. The results indicated that R2 and R3 had similar tolerance to loading shock, but the R2 had the highest COD removal of 91.6% with a final effluent of 345 mg/L. The mixing patterns in both split-feeding reactors were intermediate between plug-flow and completely-mixed, with dead spaces between 8.17% and 8.35% compared with a 31.9% dead space in R1. Polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) analysis revealed that the split-feeding strategy provided a higher bacterial diversity and more stable bacterial community than that in the regular-feeding strategy. Further analysis indicated that Firmicutes, Bacteroidetes, and Proteobacteria were the dominant bacteria, among which Firmicutes and Bacteroidetes might be responsible for organic matter degradation and Proteobacteria for nitrification and denitrification.
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Yurtsever A, Çınar Ö, Sahinkaya E. Treatment of textile wastewater using sequential sulfate-reducing anaerobic and sulfide-oxidizing aerobic membrane bioreactors. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2016.03.044] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Zhang M, Wang H, Han X. Preparation of metal-resistant immobilized sulfate reducing bacteria beads for acid mine drainage treatment. CHEMOSPHERE 2016; 154:215-223. [PMID: 27058913 DOI: 10.1016/j.chemosphere.2016.03.103] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 03/17/2016] [Accepted: 03/22/2016] [Indexed: 06/05/2023]
Abstract
Novel immobilized sulfate-reducing bacteria (SRB) beads were prepared for the treatment of synthetic acid mine drainage (AMD) containing high concentrations of Fe, Cu, Cd and Zn using up-flow anaerobic packed-bed bioreactor. The tolerance of immobilized SRB beads to heavy metals was significantly enhanced compared with that of suspended SRB. High removal efficiencies of sulfate (61-88%) and heavy metals (>99.9%) as well as slightly alkaline effluent pH (7.3-7.8) were achieved when the bioreactor was fed with acidic influent (pH 2.7) containing high concentrations of multiple metals (Fe 469 mg/L, Cu 88 mg/L, Cd 92 mg/L and Zn 128 mg/L), which showed that the bioreactor filled with immobilized SRB beads had tolerance to AMD containing high concentrations of heavy metals. Partially decomposed maize straw was a carbon source and stabilizing agent in the initial phase of bioreactor operation but later had to be supplemented by a soluble carbon source such as sodium lactate. The microbial community in the bioreactor was characterized by denaturing gradient gel electrophoresis (DGGE) and sequencing of partial 16S rDNA genes. Synergistic interaction between SRB (Desulfovibrio desulfuricans) and co-existing fermentative bacteria could be the key factor for the utilization of complex organic substrate (maize straw) as carbon and nutrients source for sulfate reduction.
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Affiliation(s)
- Mingliang Zhang
- School of Resources and Environment, University of Jinan, Jinan 250022, China.
| | - Haixia Wang
- School of Resources and Environment, University of Jinan, Jinan 250022, China
| | - Xuemei Han
- School of Resources and Environment, University of Jinan, Jinan 250022, China
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16
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Cai WF, Fang XW, Xu MX, Liu XH, Wang YH. Sequential recovery of copper and nickel from wastewater without net energy input. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2015; 71:754-760. [PMID: 25768223 DOI: 10.2166/wst.2015.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A novel bioelectrochemical system (BES) was designed to recover copper and nickel from wastewater sequentially. The BES has two chambers separated by a bipolar membrane and two cathodes. Firstly, the copper ions were reduced on a graphite cathode with electricity output, and then with an additional bias-potential applied, the nickel ions were recovered sequentially on a copper sheet with electricity input. In this design, nickel and copper can be recovered and separated sequentially on two cathodes. By adjusting the molar ratio of copper and nickel ions to 2.99:1 in wastewater, 1.40 mmol Cu²⁺ could be recovered with 143.78 J electricity outputs, while 50.68 J electricity was input for 0.32 mmol nickel reduction. The total energy output of copper recovery was far more than the electricity input of nickel reduction. The present technology provides a potential method for heavy metal ion separation and recovery.
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Affiliation(s)
- Wen-Fang Cai
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China E-mail:
| | - Xiao-Wen Fang
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China E-mail:
| | - Meng-Xi Xu
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China E-mail:
| | - Xiao-He Liu
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China E-mail:
| | - Yun-Hai Wang
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China E-mail:
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17
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Moussavi G, Ghodrati S, Mohseni-Bandpei A. The biodegradation and COD removal of 2-chlorophenol in a granular anoxic baffled reactor. J Biotechnol 2014; 184:111-7. [DOI: 10.1016/j.jbiotec.2014.05.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 03/29/2014] [Accepted: 05/06/2014] [Indexed: 10/25/2022]
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18
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Altun M, Sahinkaya E, Durukan I, Bektas S, Komnitsas K. Arsenic removal in a sulfidogenic fixed-bed column bioreactor. JOURNAL OF HAZARDOUS MATERIALS 2014; 269:31-37. [PMID: 24360509 DOI: 10.1016/j.jhazmat.2013.11.047] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Revised: 11/13/2013] [Accepted: 11/21/2013] [Indexed: 06/03/2023]
Abstract
In the present study, the bioremoval of arsenic from synthetic acidic wastewater containing arsenate (As(5+)) (0.5-20mg/L), ferrous iron (Fe(2+)) (100-200mg/L) and sulfate (2,000 mg/L) was investigated in an ethanol fed (780-1,560 mg/L chemical oxygen demand (COD)) anaerobic up-flow fixed bed column bioreactor at constant hydraulic retention time (HRT) of 9.6h. Arsenic removal efficiency was low and averaged 8% in case iron was not supplemented to the synthetic wastewater. Neutral to slightly alkaline pH and high sulfide concentration in the bioreactor retarded the precipitation of arsenic. Addition of 100mg/L Fe(2+) increased arsenic removal efficiency to 63%. Further increase of influent Fe(2+) concentration to 200mg/L improved arsenic removal to 85%. Decrease of influent COD concentration to its half, 780 mg/L, resulted in further increase of As removal to 96% when Fe(2+) and As(5+) concentrations remained at 200mg/L and 20mg/L, respectively. As a result of the sulfidogenic activity in the bioreactor the effluent pH and alkalinity concentration averaged 7.4 ± 0.2 and 1,736 ± 239 mg CaCO3/L respectively. Electron flow from ethanol to sulfate averaged 72 ± 10%. X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) analyses were carried out to identify the nature of the precipitate generated by sulfate reducing bacteria (SRB) activity. Precipitation of arsenic in the form of As2S3 (orpiment) and co-precipitation with ferrous sulfide (FeS), pyrite (FeS2) or arsenopyrite (FeAsS) were the main arsenic removal mechanisms.
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Affiliation(s)
- Muslum Altun
- Hacettepe University, Department of Chemistry, Beytepe, Ankara, Turkey.
| | - Erkan Sahinkaya
- Istanbul Medeniyet University, Bioengineering Department, Goztepe, Istanbul, Turkey
| | - Ilknur Durukan
- Hacettepe University, Department of Chemistry, Beytepe, Ankara, Turkey
| | - Sema Bektas
- Hacettepe University, Department of Chemistry, Beytepe, Ankara, Turkey
| | - Kostas Komnitsas
- Technical University of Crete, Department of Mineral Resources Engineering, Chania, Greece
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19
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Bratkova S, Koumanova B, Beschkov V. Biological treatment of mining wastewaters by fixed-bed bioreactors at high organic loading. BIORESOURCE TECHNOLOGY 2013; 137:409-413. [PMID: 23611703 DOI: 10.1016/j.biortech.2013.03.177] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 03/25/2013] [Accepted: 03/27/2013] [Indexed: 06/02/2023]
Abstract
Acid wastewaters contaminated with Fe - 1000 mg L(-1) and Cu - 100 mg L(-1) were remediated by microbial sulfate-reduction at high organic loading (theoretical TOC/SO4(2-) ratio 1.1) in a laboratory installation. The installation design includes a fixed-bed anaerobic bioreactor for sulfate-reduction, a chemical reactor, a settler and a three-sectional bioreactor for residual organic compounds and hydrogen sulfide removal. Sulfate-reducing bacteria are immobilized on saturated zeolite in the fixed-bed bioreactor. The source of carbon and energy for bacteria was concentrated solution, containing ethanol, glycerol, lactate and citrate. Heavy metals removal was achieved by produced H2S at sulfate loading rate 88 mg L(-1)h(-1). The effluent of the anaerobic bioreactor was characterized with high concentrations of acetate and ethanol. The design of the second bioreactor (presence of two aerobic and an anoxic zones) makes possible the occurrence of nitrification and denitrification as well as the efficiently removal of residual organic compounds and H2S.
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Affiliation(s)
- Svetlana Bratkova
- Department of Engineering Geoecology, University of Mining and Geology, St. Ivan Rilski, Sofia, Bulgaria.
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20
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Zhang B, Zhang J, Yang Q, Feng C, Zhu Y, Ye Z, Ni J. Investigation and optimization of the novel UASB-MFC integrated system for sulfate removal and bioelectricity generation using the response surface methodology (RSM). BIORESOURCE TECHNOLOGY 2012; 124:1-7. [PMID: 22985846 DOI: 10.1016/j.biortech.2012.08.045] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Revised: 08/08/2012] [Accepted: 08/11/2012] [Indexed: 06/01/2023]
Abstract
COD/sulfate ratio and hydraulic residence time (HRT), both of which influence sulfate loadings jointly, are recognized as the most two important affecting factors for sulfate removal and bioelectricity generation in the novel up-flow anaerobic sludge blanket reactor-microbial fuel cell (UASB-MFC) integrated system. The response surface methodology (RSM) was employed for the optimization of this system and the optimum condition with COD/sulfate ratio of 2.3 and HRT of 54.3h was obtained with the target of maximizing the power output. In terms of maximizing the total sulfate removal efficiency, the obtained optimum condition was COD/sulfate ratio of 3.7 and HRT of 55.6h. Experimental results indicated the undistorted simulation and reliable optimized results. These demonstrated that RSM was effective to evaluate and optimize the UASB-MFC system for sulfate removal and energy recovery, providing a promising guide to further improvement of the system for potential applications.
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Affiliation(s)
- Baogang Zhang
- School of Water Resources and Environment, China University of Geosciences (Beijing), Key Laboratory of Groundwater Circulation and Evolution, Ministry of Education, Beijing 100083, China.
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21
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Bai H, Kang Y, Quan H, Han Y, Feng Y. Treatment of copper wastewater by sulfate reducing bacteria in the presence of zero valent iron. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.minpro.2012.06.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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22
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Fang D, Zhang R, Deng W, Li J. Highly efficient removal of Cu(II), Zn(II), Ni(II) and Fe(II) from electroplating wastewater using sulphide from sulphidogenic bioreactor effluent. ENVIRONMENTAL TECHNOLOGY 2012; 33:1709-1715. [PMID: 22988632 DOI: 10.1080/09593330.2011.643319] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A bench-scale, stirred-tank batch precipitator was used to assess the selective removal of Cu2+, Zn2+, Ni2+ and Fe2+ from acidic electroplating wastewater using sulphide from a sulphidogenic bioreactor effluent. At pH approximately 1.7, >99% of Cu was selectively precipitated, over Zn, Ni and Fe, from the wastewater as pure CuS by recycling H2S from the bioreactor effluent via N2 sparging, resulting in a Cu effluent concentration <0.4 mg/L. The rate of Cu precipitation increased from 1.6 to 6.4 mg Cu/(L x min) when the pH of the bioreactor effluent decreased from 7.5 to 5.5. Experiments focusing on the precipitation of Zn, Ni and Fe from the wastewater devoid of Cu (at pH approximately 1.7), using sulphide-rich bioreactor effluent, achieved approximately 85-97% precipitation efficiency for Zn, approximately 25-92% for Ni, and approximately 2-99% for Fe, depending on the initial sulphide/metal molar ratio. The sulphide/metal ratio of 1.76 was found to be optimal for the precipitation of Zn, Ni and Fe with sulphides and, to a lesser extent, with hydroxides, resulting in residual metal concentrations of 1 mg Zn/L, 3 mg Ni/L, and 0.5 mg Fe/L. These findings suggest the potential of waste biogenic sulphides for the selective recovery of valuable metals from acidic metal-rich industrial wastewaters.
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Affiliation(s)
- Di Fang
- Department of Environmental Engineering, Ocean University of China, Qingdao 266100, China.
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23
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Bilek F, Wagner S. Long term performance of an AMD treatment bioreactor using chemolithoautotrophic sulfate reduction and ferrous iron precipitation under in situ groundwater conditions. BIORESOURCE TECHNOLOGY 2012; 104:221-227. [PMID: 22133606 DOI: 10.1016/j.biortech.2011.11.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Revised: 11/04/2011] [Accepted: 11/05/2011] [Indexed: 05/31/2023]
Abstract
Chemolithoautotrophic sulfate reduction (CSR) was tested to treat natural acid mine drainage influenced groundwaters. The long term behavior was studied for more than 3 years under groundwater conditions (10 °C, autochthonous sulfate reducing bacteria (SRB)) without biomass replenishment in a 190 L bench scale reactor. The process produces water with alkalinity >10 mM. pH can be controlled by p(CO(2)) for all expectable water qualities. SRB were immobilized using an expanded clay bed. After 1.3 years of operation, a constant biomass content and sulfate reduction rate of 0.25-0.30 mmol(so)₄(Lh)⁻¹ were established. The sulfate reduction rate was limited by biomass content. Most of the electrons were used for sulfate reduction (98%). The hydrogen turn over in competing processes like methanogenesis and homoacetogenesis was successfully suppressed by adjusting the sulfate concentration to be >2 mM in the runoff.
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Affiliation(s)
- F Bilek
- Dresden Groundwater Research Centre (DGFZ), Meraner Str. 12, 01217 Dresden, Germany.
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24
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Sarti A, Zaiat M. Anaerobic treatment of sulfate-rich wastewater in an anaerobic sequential batch reactor (AnSBR) using butanol as the carbon source. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2011; 92:1537-1541. [PMID: 21277676 DOI: 10.1016/j.jenvman.2011.01.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2010] [Revised: 12/02/2010] [Accepted: 01/05/2011] [Indexed: 05/30/2023]
Abstract
Biological sulfate reduction was studied in a laboratory-scale anaerobic sequential batch reactor (14 L) containing mineral coal for biomass attachment. The reactor was fed industrial wastewater with increasingly high sulfate concentrations to establish its application limits. Special attention was paid to the use of butanol in the sulfate reduction that originated from melamine resin production. This product was used as the main organic amendment to support the biological process. The reactor was operated for 65 cycles (48 h each) at sulfate loading rates ranging from 2.2 to 23.8 g SO(4)(2-)/cycle, which corresponds to sulfate concentrations of 0.25, 0.5, 1.0, 2.0 and 3.0 g SO(4)(2-) L(-1). The sulfate removal efficiency reached 99% at concentrations of 0.25, 0.5 and 1.0 g SO(4)(2-) L(-1). At higher sulfate concentrations (2.0 and 3.0 g SO(4)(2-) L(-1)), the sulfate conversion remained in the range of 71-95%. The results demonstrate the potential applicability of butanol as the carbon source for the biological treatment of sulfate in an anaerobic batch reactor.
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Affiliation(s)
- Arnaldo Sarti
- Departamento de Hidráulica e Saneamento, Universidade de São Paulo, São Carlos, SP, Brazil.
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25
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Bekmezci OK, Ucar D, Kaksonen AH, Sahinkaya E. Sulfidogenic biotreatment of synthetic acid mine drainage and sulfide oxidation in anaerobic baffled reactor. JOURNAL OF HAZARDOUS MATERIALS 2011; 189:670-676. [PMID: 21320747 DOI: 10.1016/j.jhazmat.2011.01.087] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2010] [Revised: 01/18/2011] [Accepted: 01/21/2011] [Indexed: 05/30/2023]
Abstract
The treatment of synthetic acid mine drainage (AMD) water (pH 3.0-6.5) containing sulfate (3.0-3.5 g L(-1)) and various metals (Co, Cu, Fe, Mn, Ni, and Zn) was studied in an ethanol-fed sulfate-reducing 4-compartment anaerobic baffled reactor (ABR) at 32°C. The reactor was operated for 160 days at different chemical oxygen demand (COD)/sulfate ratios, hydraulic retention times (HRT), pH, and metal concentrations to study the robustness of the process. The last compartment of the reactor was aerated at different rates to study the bio-oxidation of sulfide to elemental sulfur. The highest sulfate reduction efficiency (88%) was obtained with a feed sulfate concentration of 3.5 g L(-1), COD/sulfate mass ratio of 0.737, feed pH of 3.0 and HRT of 2 days without aeration in the 4th compartment. The corresponding COD removal efficiency was about 92%. The alkalinity produced in the sulfidogenic ethanol oxidation neutralized the acidic mine water from pH 3.0-4.5 to pH 7.0-8.0. Effluent soluble and total heavy metal concentrations were substantially reduced with removal efficiencies generally higher than 99%, except for Mn (25-77%). Limited aeration in the 4th compartment of ABR promoted incomplete oxidation of sulfide to elemental sulfur rather than complete oxidation to sulfate. Depending on the aeration rate and HRT, 32-74% of produced sulfide was oxidized to elemental sulfur. This study demonstrates that by optimizing operating conditions, sulfate reduction, metal removal, alkalinity generation, and excess sulfide oxidation can be achieved in a single ABR treating AMD.
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Affiliation(s)
- Ozan K Bekmezci
- Harran University, Environmental Engineering Department, Osmanbey Campus, 63000 Sanliurfa, Turkey
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26
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Sahinkaya E, Hasar H, Kaksonen AH, Rittmann BE. Performance of a sulfide-oxidizing, sulfur-producing membrane biofilm reactor treating sulfide-containing bioreactor effluent. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2011; 45:4080-4087. [PMID: 21452867 DOI: 10.1021/es200140c] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Sulfide-containing waste streams are generated in mining, petrochemical plants, tanneries, viscose rayon manufacture, and the gasification of coal. Colorless sulfur bacteria can oxidize sulfide to elemental sulfur (S°), which can be recovered, when oxygen is their electron acceptor. This study evaluated sulfide oxidation and S° recovery in an oxygen-based membrane biofilm reactor (MBfR) treating the effluent from a sulfidogenic anaerobic baffled reactor. Sulfide oxidation efficiency (37-99%) and S° recovery (64-89% of oxidized sulfide) could be controlled by manipulating the sulfide loading, oxygen pressure to the fibers, and hydraulic retention time (HRT). For example, too-low oxygen pressure decreased S° recovery due to decreased sulfide oxidation, but too-high oxygen pressure lowered S° recovery due to its oxidation to sulfate. Most importantly, high sulfide oxidation (>98%) and conversion to S° (>75%) could be achieved together when the sulfide loading was less than 1.7 mol/m²·d and the O₂ pressure was sufficient to give an O₂ flux of at least 1.5 mol/m²·d. However, higher sulfide loading could be compensated by a higher O₂ pressure, and the best performance occurred when the sulfide loading was high (2 molS/m²·d), the O₂ pressure was high (∼1 atm), and the HRT was short (1.9 h). Membrane fouling caused a low O₂ flux, which led to low sulfide-oxidation efficiency, but fouling could be reversed by mild acid washing.
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Affiliation(s)
- Erkan Sahinkaya
- Department of Environmental Engineering, Harran University , Osmanbey Campus, 63000 Sanliurfa, Turkey.
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27
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Zhang D, Li J, Guo P, Li P, Suo Y, Wang X, Cui Z. Dynamic transition of microbial communities in response to acidification in fixed-bed anaerobic baffled reactors (FABR) of two different flow directions. BIORESOURCE TECHNOLOGY 2011; 102:4703-11. [PMID: 21316948 DOI: 10.1016/j.biortech.2011.01.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2010] [Revised: 01/11/2011] [Accepted: 01/15/2011] [Indexed: 05/16/2023]
Abstract
Two five-compartment fixed-bed anaerobic baffled reactors (FABRs) were operated under deteriorative and stable conditions. The FABRs were identical except for flow direction: one was horizontal (H-reactor) and the other was vertical (V-reactor). The microbial community dynamics in 1, 3 and 5 compartments were analyzed using denaturing gradient gel electrophoresis (DGGE), 16S rRNA gene clone library screening and quantitative PCR. After start-up, the Methanomicrobiales were typically dominant in adhering sludge of 5th compartments of two reactors. Because methanogenesis mainly occurred in the latter compartment, Methanomicrobiales were likely to play important roles in FABRs. FABRs recovered from performance deterioration very quickly. Meanwhile, methanogens and dominant methanogens greatly increased in every compartment of two reactors. Our results indicated that 16S rRNA levels of methanogens in the adhering sludge were higher than those in the deposited sludge and the adhering fraction of V-reactor held up more acid-resistant bacteria and methanogens than that of H-reactor.
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Affiliation(s)
- Dongdong Zhang
- College of Agronomy and Biotechnology/Center of Biomass Engineering, China Agricultural University, Beijing 100193, China
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28
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Biotreatment of acidic zinc- and copper-containing wastewater using ethanol-fed sulfidogenic anaerobic baffled reactor. Bioprocess Biosyst Eng 2010; 33:989-97. [DOI: 10.1007/s00449-010-0423-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2010] [Accepted: 03/18/2010] [Indexed: 11/30/2022]
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29
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Sahinkaya E, Gungor M, Bayrakdar A, Yucesoy Z, Uyanik S. Separate recovery of copper and zinc from acid mine drainage using biogenic sulfide. JOURNAL OF HAZARDOUS MATERIALS 2009; 171:901-906. [PMID: 19608339 DOI: 10.1016/j.jhazmat.2009.06.089] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2009] [Revised: 06/13/2009] [Accepted: 06/16/2009] [Indexed: 05/28/2023]
Abstract
Precipitation of metals from acid mine drainage (AMD) using sulfide gives the possibility of selective recovery due to different solubility product of each metal. Using sulfate reducing bacteria to produce sulfide for that purpose is advantageous due to in situ and on-demand sulfide production. In this study, separate precipitation of Cu and Zn was studied using sulfide produced in anaerobic baffled reactor (ABR). ABR fed with ethanol (1340 mg/L chemical oxygen demand (COD)) and sulfate (2000 mg/L) gave a stable performance with 65% sulfate reduction, 85% COD removal and around 320 mg/L sulfide production. Cu was separately precipitated at low pH (pH<2) using sulfide transported from ABR effluent via N(2) gas. Cu precipitation was complete within 45-60 min and Zn did not precipitate during Cu removal. The Cu precipitation rate increased with initial Cu concentration. After selective Cu precipitation, Zn recovery was studied using ABR effluent containing sulfide and alkalinity. Depending on initial sulfide/Zn ratio, removal efficiency varied between 84 and 98%. The low pH of Zn bearing AMD was also increased to neutral values using alkalinity produced by sulfate reducing bacteria in ABR. The mode of particle size distribution of ZnS and CuS precipitates was around 17 and 46 microm, respectively.
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Affiliation(s)
- Erkan Sahinkaya
- Environmental Engineering Department, Harran University, 63000 Sanliurfa, Turkey.
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