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Pérez-de-Mora A, de Wilde H, Paulus D, Roosa S, Onderwater R, Paint Y, Avignone Rossa C, Farkas D. Biostimulation of sulfate reduction for in-situ metal(loid) precipitation at an industrial site in Flanders, Belgium. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172298. [PMID: 38615778 DOI: 10.1016/j.scitotenv.2024.172298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 03/17/2024] [Accepted: 04/05/2024] [Indexed: 04/16/2024]
Abstract
A 30-month pilot study was conducted to evaluate the potential of in-situ metal(loid) removal through biostimulation of sulfate-reducing processes. The study took place at an industrial site in Flanders, Belgium, known for metal(loid) contamination in soil and groundwater. Biostimulation involved two incorporations of an organic substrate (emulsified vegetable oil) as electron donor and potassium bicarbonate to raise the pH of the groundwater by 1-1.5 units. The study focused on the most impacted permeable fine sand aquifer (8-9 m below groundwater level) confined by layers of non-permeable clay. The fine sands exhibited initially oxic conditions (50-200 mV), an acidic pH of 4.5 and sulfate concentrations ranging from 600 to 800 mg/L. At the central monitoring well, anoxic conditions (-200 to -400 mV) and a pH of 5.9 established shortly after the second substrate and reagent injection. Over the course of 12 months, there was a significant decrease in the concentration of arsenic (from 2500 to 12 μg/L), nickel (from 360 to <2 μg/L), zinc (from 78,000 to <2 μg/L), and sulfate (from 930 to 450 mg/L). Low levels of metal(loid)s were still present after 34 months (end of study). Mineralogical analysis indicated that the precipitates formed were amorphous in nature. Evidence for biologically driven metal(loid) precipitation was provided by compound specific stable isotope analysis of sulfate. In addition, changes in microbial populations were assessed using next-generation sequencing, revealing stimulation of native sulfate-reducing bacteria. These results highlight the potential of biostimulation for long-term in situ metal(loid) plume treatment/containment.
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Affiliation(s)
| | - Herwig de Wilde
- TAUW België nv, Dept. of Soil & Groundwater, Waaslandlaan 8A3, 9160 Lokeren, Belgium
| | - Dirk Paulus
- TAUW België nv, Dept. of Soil & Groundwater, Remylaan 4C, Bus 3, 3018 Leuven, Belgium
| | - Stephanie Roosa
- Materia NOVA Institute, 6 Avenue du champ de Mars, 7000 Mons, Belgium
| | - Rob Onderwater
- Materia NOVA Institute, 6 Avenue du champ de Mars, 7000 Mons, Belgium
| | - Yoann Paint
- Materia NOVA Institute, 6 Avenue du champ de Mars, 7000 Mons, Belgium
| | - Claudio Avignone Rossa
- University of Surrey, Deptartment of Microbial Sciences, Guildford GU2 7XH, United Kingdom
| | - Daniel Farkas
- University of Surrey, Deptartment of Microbial Sciences, Guildford GU2 7XH, United Kingdom.
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2
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Namburath M, Alappat BJ, Ramaswamy ST. A critical review of inverse fluidized bed reactors-start-up optimization strategies and wastewater treatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:108370-108392. [PMID: 37768490 DOI: 10.1007/s11356-023-29876-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 09/10/2023] [Indexed: 09/29/2023]
Abstract
A critical evaluation of strategies used for reducing start-up time and biological wastewater treatment using an inverse fluidized bed reactor (IFBR) was done. The start-up of an IFBR is one of the most important, time-consuming, and limiting steps in wastewater treatment using biofilm reactors. Evaluation of different strategies used by various researchers is helpful in future research works with this reactor. Different types of treated wastewater, the effect of wastewater characteristics, carriers used, and reactor hydrodynamics on the reactor performance were reviewed in detail in the first part. The second part of this review covers the use of an IFBR in the biological treatment of different wastewaters through multiple biochemical pathways and how it helped improve performance compared to other reactors. This will enable the researchers to understand the novelty of an IFBR for wastewater treatment and allow them to use it as a potential reactor.
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Affiliation(s)
- Maneesh Namburath
- Department of Civil Engineering, Indian Institute of Technology Delhi (IIT Delhi), Hauz Khas, New Delhi, 110016, India.
| | - Babu J Alappat
- Department of Civil Engineering, Indian Institute of Technology Delhi (IIT Delhi), Hauz Khas, New Delhi, 110016, India
| | - Sreekrishnan Trichur Ramaswamy
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
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3
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Din I, Khan S, Hesham AEL, Irum S, Daqiang C. Mine Wastewater Treatment with Upflow Anaerobic Fixed Film Reactors. MINE WATER AND THE ENVIRONMENT 2023; 42:340-347. [DOI: 10.1007/s10230-023-00929-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 03/23/2023] [Indexed: 09/02/2023]
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4
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Zou J, Qiu YY, Li H, Jiang F. Sulfur disproportionation realizes an organic-free sulfidogenic process for sustainable treatment of acid mine drainage. WATER RESEARCH 2023; 232:119647. [PMID: 36738555 DOI: 10.1016/j.watres.2023.119647] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/03/2023] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
Biological sulfidogenic processes (BSPs) have been considered effective biotechnologies for the treatment of organic-deficit acid mine drainage (AMD) and heavy metal recovery. However, high-rate sulfide production relies on the continuous addition of exogenous organic substrates as electron donors to facilitate dissimilatory sulfate reduction, which substantially increases the operational cost and CO2 emission and also limits the wide application of BSPs in AMD treatment. In this study, we proposed a novel chemoautotrophic elemental sulfur disproportionation (SD) process as an alternative to conventional BSPs for treating AMD, in which sulfur-disproportionating bacteria (SDB) disproportionates sulfur to sulfide and sulfate without organic substrate supplementation. During the 393-day lab-scale test, we observed that the sulfur-disproportionating reactor (SDR) achieved a stable high-rate sulfide production, with a maximal rate of 21.10 mg S/L-h at an organic-substrate-free condition. This high rate of sulfide production suggested that the SD process could provide sufficient sulfide to precipitate metal ions from AMD. Thermodynamics analysis and batch tests further revealed that alkalinity rather than sulfate was the critical factor influencing the SD process, suggesting that the abundant sulfate present in AMD would not inhibit the SD process. The critical condition of SD in the SDR was therefore determined. Microbial community analysis showed that Dissulfurimicrobium sp. was the dominant SDB during the long-term operation regardless of dynamic sulfate and/or alkalinity concentrations, which provides evidence that SDB can be employed for sustainable and high-rate sulfide production for engineering purposes. A multi-stage AMD treatment system equipped with a SDR removed over 99% of the influent metals (i.e., Fe, Al, Zn, Cu, Pb) from AMD except for Mn. This study demonstrated that the novel SD process is a green and promising biotechnology for the sustainable treatment of organic-deficient metal-laden wastewater, such as AMD.
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Affiliation(s)
- Jiahui Zou
- School of Environmental Science and Engineering, Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou, China
| | - Yan-Ying Qiu
- School of Environmental Science and Engineering, Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou, China
| | - Hao Li
- School of Environmental Science and Engineering, Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou, China
| | - Feng Jiang
- School of Environmental Science and Engineering, Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial International Joint Research Center on Urban Water Management and Treatment, Sun Yat-sen University, Guangzhou, China.
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5
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Li Y, Zhao Q, Liu M, Guo J, Xia J, Wang J, Qiu Y, Zou J, He W, Jiang F. Treatment and remediation of metal-contaminated water and groundwater in mining areas by biological sulfidogenic processes: A review. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130377. [PMID: 36444068 DOI: 10.1016/j.jhazmat.2022.130377] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 10/20/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
Heavy metal pollution in the mining areas leads to serious environmental problems. The biological sulfidogenic process (BSP) mediated by sulfidogenic bacteria has been considered an attractive technology for the treatment and remediation of metal-contaminated water and groundwater. Notwithstanding, BSP driven by different sulfidogenic bacteria could affect the efficiency and cost-effectiveness of the treatment performance in practical applications, such as the microbial intolerance of pH and metal ions, the formation of toxic byproducts, and the consumption of organic electron donors. Sulfur-reducing bacteria (S0RB)-driven BSP has been demonstrated to be a promising alternative to the commonly used sulfate-reducing bacteria (SRB)-driven BSP for treating metal-contaminated wastewater and groundwater, due to the cost-saving in chemical addition, the high efficiency in sulfide production and metal removal efficiency. Although the S0RB-driven BSP has been developed and applied for decades, the present review works mainly focus on the developments in SRB-driven BSP for the treatment and remediation of metal-contaminated wastewater and groundwater. Accordingly, a comprehensive review for metal-contaminated wastewater treatment and groundwater remediation should be provided with the incorporation of the SRB- and S0RB-driven BSP. To identify the bottlenecks and to improve BSP performance, this paper reviews sulfidogenic bacteria presenting in metal-contaminated water and groundwater; highlight the critical factors for the metabolism of sulfidogenic bacteria during BSP; the ecological roles of sulfidogenic bacteria and the mechanisms of metal removal by sulfidogenic bacteria; and the application of the present sulfidogenic systems and their drawbacks. Accordingly, the research knowledge gaps, current process limitations, and future prospects were provided for improving the performance of BSP in the treatment and remediation of metal-contaminated wastewater and groundwater in mining areas.
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Affiliation(s)
- Yu Li
- School of Environment, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China
| | - Qingxia Zhao
- School of Environment, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China
| | - Ming Liu
- State Environmental Protection Key Laboratory of Urban Ecological Environment Simulation and Protection, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the People's Republic of China, Guangzhou 510655, China
| | - Jiahua Guo
- School of Environmental Science & Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Juntao Xia
- School of Environmental Science & Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Jinting Wang
- Department of Civil and Environmental Engineering, Water Technology Lab, Hong Kong Branch of Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Hong Kong University of Science & Technology, Hong Kong, China
| | - Yanying Qiu
- School of Environmental Science & Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Jiahui Zou
- School of Environmental Science & Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Weiting He
- School of Environment, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China
| | - Feng Jiang
- School of Environmental Science & Engineering, Sun Yat-sen University, Guangzhou 510275, China.
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Magalhães de Sousa C, Luiz Cardoso V, Regina Xavier Batista F. A Coupled photocatalytic system using niobium oxide and microalga: cr (vi)-contaminated wastewater treatment. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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7
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Marais TS, Huddy RJ, Harrison STL. Elemental sulphur recovery from a sulphate-rich aqueous stream in a single hybrid linear flow channel reactor is mediated through microbial community dynamics and adaptation to reactor zones. FEMS Microbiol Ecol 2022; 98:6763417. [PMID: 36259757 DOI: 10.1093/femsec/fiac059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 04/20/2022] [Accepted: 10/03/2022] [Indexed: 01/21/2023] Open
Abstract
The coupled application of biological sulphate reduction (BSR) and partial sulphide oxidation to treat sulphate-rich wastewater is an effective strategy to mitigate pollution and recover elemental sulphur for repurposing. The recent development of the hybrid linear flow channel reactor (LFCR) achieves simultaneous BSR and partial sulphide oxidation with biosulphur recovery via a floating sulphur biofilm (FSB). Here, we explore the microbial community zoning and dynamics facilitating the process. A total of three continuous LFCRs were used to evaluate the effect of reactor zones, hydraulic residence time (HRT), carbon source, namely lactate and acetate, as well as reactor geometry and scale on process performance and microbial community dynamics. Community composition of sessile and planktonic microbial consortia were resolved at a 5- and 2-day HRT through 16S rRNA amplicon sequencing. Preferential attachment and prevalence of specific phylotypes within the sessile and planktonic communities revealed clear adaptation of key microorganisms to different microenvironments. Key microbial taxa affiliated with sulphate reduction and sulphide oxidation as well as those implicated in fermentation and syntrophic metabolism, fluctuated in response to changes in HRT and process performance. Through understanding the relationship between microbial community dynamics and process performance, this research will inform better process design and optimization of the hybrid LFCR.
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Affiliation(s)
- T S Marais
- Centre for Bioprocess Engineering Research, Department of Chemical Engineering, University of Cape Town, Private Bag X1, Rondebosch 7701, South Africa.,Future Water Institute, 1 Madiba Circle, University of Cape Town, 7700, South Africa
| | - R J Huddy
- Centre for Bioprocess Engineering Research, Department of Chemical Engineering, University of Cape Town, Private Bag X1, Rondebosch 7701, South Africa.,Future Water Institute, 1 Madiba Circle, University of Cape Town, 7700, South Africa
| | - S T L Harrison
- Centre for Bioprocess Engineering Research, Department of Chemical Engineering, University of Cape Town, Private Bag X1, Rondebosch 7701, South Africa.,Future Water Institute, 1 Madiba Circle, University of Cape Town, 7700, South Africa
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8
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Zhou S, Guo J, Li Y, Li C, Jiang F. A novel steady-state model to quantitively assess the effect of pH elevation by dissimilatory sulfate reduction process in acidic waters in mining areas. WATER RESEARCH 2022; 222:118852. [PMID: 35908481 DOI: 10.1016/j.watres.2022.118852] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 06/11/2022] [Accepted: 07/09/2022] [Indexed: 06/15/2023]
Abstract
Acidic waters such as groundwater, drainage and lakes in mining area contain high-strength acids and metal ions, posing serious threats to aquatic ecosystems and human health. Dissimilatory sulfate reduction (DSR)-based processes are attractive technologies for remediating acidic waters because it produces alkalinity and sulfide for metal precipitation and acid neutralization. However, the effects of pH elevation achieved by DSR-based processes are case-sensitive and difficult to be quantitively assessed, which limits the application of DSR process for acidic water remediation. Therefore, in this study, a Sulfidogenic Acid mine water Remediation Model (SARM) considering the DSR process, weak acids balance, metal sulfide and hydroxide precipitations, and gas-liquid exchanges of H2S and CO2, was developed to quantitatively assess the effects of various environmental factors on the pH elevation by a DSR process in acidic waters. A long-term trial of a DSR reactor was conducted to calibrate and validate the SARM. The experimental results revealed that the DSR-based process is effective to relieve acidity. The calibrated SARM demonstrated the excellent performance to predict the pH variation in the DSR reactor, under the varied conditions of influent pH and organic concentration. The calibrated SARM was further validated with data collected from literatures, and the results verified that the proposed model is capable to accurately assess the effect of DSR process on acid neutralization and metal removals under various conditions in steady state. The model was employed to systematically evaluate the impacts of environmental factors on acid remediation within a DSR-based process. The results revealed that the background alkalinity plays an important role in acid neutralization. However, with an increase in sulfate reduction, biogenic sulfide and carbonate become the dominant buffering substances to neutralize acidity. Furthermore, the SARM was used to evaluate the applicability of the DSR-based process for the remediation of acidic waters by evaluating the sulfide production thresholds for acid neutralization and metal removal. The simulation results demonstrated that, the DSR-based process is recommended for the remediation of acidic waters with low background alkalinity. Collectively, the SARM proposed in this study was found to be a useful and efficient tool for quantitatively assessing the potential of DSR-based processes for neutralizing acidic waters, which is vital for biogeochemistry and environmental engineering research.
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Affiliation(s)
- Shunjie Zhou
- Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, School of Environmental Science & Engineering, Sun Yat-sen University, Guangzhou 510275, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, Guangzhou 510006, China
| | - Jiahua Guo
- Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, School of Environmental Science & Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Yu Li
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, Guangzhou 510006, China
| | - Cheng Li
- Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, School of Environmental Science & Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Feng Jiang
- Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, School of Environmental Science & Engineering, Sun Yat-sen University, Guangzhou 510275, China.
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9
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Santos AMD, Costa JM, Braga JK, Flynn TM, Brucha G, Sancinetti GP, Rodriguez RP. Lactate as an effective electron donor in the sulfate reduction: impacts on the microbial diversity. ENVIRONMENTAL TECHNOLOGY 2022; 43:3149-3160. [PMID: 33840369 DOI: 10.1080/09593330.2021.1916092] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 04/05/2021] [Indexed: 06/12/2023]
Abstract
The competition between sulfate-reducing bacteria and methane-producing archaea has a major influence on organic matter removal, as well as the success of sulfidogenic systems. This study investigated the performance of six batch sulfidogenic reactors in response to different COD/sulfate ratios (1.0 and 2.0) and electron donors (cheese whey, ethanol, and sodium lactate) by evaluating the biochemical mechanisms of sulfate reduction, organic matter oxidation, and microbial structure modification. A COD/sulfate ratio of 1.0 resulted in high sulfidogenic activity for all electron donors, thereby achieving a nearly 80% sulfate removal. Lactate provided high sulfate removal rates at COD/sulfate ratios of 1.0 (80%) and 2.0 (90%). A COD/sulfate ratio of 2.0 decreased the sulfate removal rates by 25 and 28% when ethanol and cheese whey were used as substrates. The sulfate-reducing bacteria populations increased using ethanol and lactate at a COD/sulfate ratio of 1.0. Particularly, Desulfovibrio, Clostridium, and Syntrophobacter were predominant. Influent composition and COD/sulfate ratio influenced the relative abundance of the microbial communities. Therefore, controlling these parameters may facilitate the wastewater treatment with high sulfate levels through bacterial activity.
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Affiliation(s)
- Angélica Marcia Dos Santos
- Fundação Getúlio Vargas (FGV-Energia), Rio de Janeiro, Brazil
- Federal University of Catalão (UFCAT), Catalão, Brazil
- Laboratory of Anaerobic Biotechnology - Science and Technology Institute, Federal University of Alfenas (UNIFAL-MG), Poços de Caldas, Brazil
| | | | - Juliana Kawanishi Braga
- Laboratory of Anaerobic Biotechnology - Science and Technology Institute, Federal University of Alfenas (UNIFAL-MG), Poços de Caldas, Brazil
| | - Theodore M Flynn
- California Department of Water Resources, West Sacramento, CA, USA
| | - Gunther Brucha
- Laboratory of Anaerobic Biotechnology - Science and Technology Institute, Federal University of Alfenas (UNIFAL-MG), Poços de Caldas, Brazil
| | - Giselle Patricia Sancinetti
- Laboratory of Anaerobic Biotechnology - Science and Technology Institute, Federal University of Alfenas (UNIFAL-MG), Poços de Caldas, Brazil
| | - Renata Piacentini Rodriguez
- Laboratory of Anaerobic Biotechnology - Science and Technology Institute, Federal University of Alfenas (UNIFAL-MG), Poços de Caldas, Brazil
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Ostermeyer P, Van Landuyt J, Bonin L, Folens K, Williamson A, Hennebel T, Rabaey K. High rate production of concentrated sulfides from metal bearing wastewater in an expanded bed hydrogenotrophic sulfate reducing bioreactor. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2022; 11:100173. [PMID: 36158753 PMCID: PMC9488047 DOI: 10.1016/j.ese.2022.100173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 03/28/2022] [Accepted: 03/29/2022] [Indexed: 06/16/2023]
Abstract
Metallurgical wastewaters contain high concentrations of sulfate, up to 15 g L-1. Sulfate-reducing bioreactors are employed to treat these wastewaters, reducing sulfates to sulfides which subsequently co-precipitate metals. Sulfate loading and reduction rates are typically restricted by the total H2S concentration. Sulfide stripping, sulfide precipitation and dilution are the main strategies employed to minimize inhibition by H2S, but can be adversely compromised by suboptimal sulfate reduction, clogging and additional energy costs. Here, metallurgical wastewater was treated for over 250 days using two hydrogenotrophic granular activated carbon expanded bed bioreactors without additional removal of sulfides. H2S toxicity was minimized by operating at pH 8 ± 0.15, resulting in an average sulfate removal of 7.08 ± 0.08 g L-1, sulfide concentrations of 2.1 ± 0.2 g L-1 and peaks up to 2.3 ± 0.2 g L-1. A sulfate reduction rate of 20.6 ± 0.9 g L-1 d-1 was achieved, with maxima up to 27.2 g L-1 d-1, which is among the highest reported considering a literature review of 39 studies. The rates reported here are 6-8 times higher than those reported for other reactors without active sulfide removal and the only reported for expanded bed sulfate-reducing bioreactors using H2. By increasing the influent sulfate concentration and maintaining high sulfide concentrations, sulfate reducers were promoted while fermenters and methanogens were suppressed. Industrial wastewater containing 4.4 g L-1 sulfate, 0.036 g L-1 nitrate and various metals (As, Fe, Tl, Zn, Ni, Sb, Co and Cd) was successfully treated with all metal(loid)s, nitrates and sulfates removed below discharge limits.
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Affiliation(s)
- Pieter Ostermeyer
- Center of Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
- CAPTURE, Frieda Saeysstraat 1, 9000, Gent, Belgium1
www.capture-resources.be
| | - Josefien Van Landuyt
- Center of Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
| | - Luiza Bonin
- Center of Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
- CAPTURE, Frieda Saeysstraat 1, 9000, Gent, Belgium1
www.capture-resources.be
| | - Karel Folens
- Center of Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
| | - Adam Williamson
- Center of Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
- CENBG, Université de Bordeaux, CNRS-IN2P3/, 19 chemin du Solarium, CS10120, 33175, Gradignan, France
| | - Tom Hennebel
- Center of Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
- CAPTURE, Frieda Saeysstraat 1, 9000, Gent, Belgium1
www.capture-resources.be - Umicore, Group Research & Development, Competence Area Recycling and Extraction Technologies, Watertorenstraat 33, B-2250, Olen, Belgium
| | - Korneel Rabaey
- Center of Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
- CAPTURE, Frieda Saeysstraat 1, 9000, Gent, Belgium1
www.capture-resources.be
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11
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Ostermeyer P, Bonin L, Leon-Fernandez LF, Dominguez-Benetton X, Hennebel T, Rabaey K. Electrified bioreactors: the next power-up for biometallurgical wastewater treatment. Microb Biotechnol 2021; 15:755-772. [PMID: 34927376 PMCID: PMC8913880 DOI: 10.1111/1751-7915.13992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/26/2021] [Accepted: 11/29/2021] [Indexed: 12/23/2022] Open
Abstract
Over the past decades, biological treatment of metallurgical wastewaters has become commonplace. Passive systems require intensive land use due to their slow treatment rates, do not recover embedded resources and are poorly controllable. Active systems however require the addition of chemicals, increasing operational costs and possibly negatively affecting safety and the environment. Electrification of biological systems can reduce the use of chemicals, operational costs, surface footprint and environmental impact when compared to passive and active technologies whilst increasing the recovery of resources and the extraction of products. Electrification of low rate applications has resulted in the development of bioelectrochemical systems (BES), but electrification of high rate systems has been lagging behind due to the limited mass transfer, electron transfer and biomass density in BES. We postulate that for high rate applications, the electrification of bioreactors, for example, through the use of electrolyzers, may herald a new generation of electrified biological systems (EBS). In this review, we evaluate the latest trends in the field of biometallurgical and microbial‐electrochemical wastewater treatment and discuss the advantages and challenges of these existing treatment technologies. We advocate for future research to focus on the development of electrified bioreactors, exploring the boundaries and limitations of these systems, and their validity upon treating industrial wastewaters.
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Affiliation(s)
- Pieter Ostermeyer
- Faculty of Bioscience Engineering, Center of Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, Ghent, B-9000, Belgium.,CAPTURE, Frieda Saeysstraat 1, Ghent, 9000, Belgium
| | - Luiza Bonin
- Faculty of Bioscience Engineering, Center of Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, Ghent, B-9000, Belgium.,CAPTURE, Frieda Saeysstraat 1, Ghent, 9000, Belgium
| | - Luis Fernando Leon-Fernandez
- Separation and Conversion Technology, Flemish Institute for Technological Research (VITO), Boeretang 200, Mol, 2400, Belgium
| | - Xochitl Dominguez-Benetton
- Separation and Conversion Technology, Flemish Institute for Technological Research (VITO), Boeretang 200, Mol, 2400, Belgium
| | - Tom Hennebel
- Faculty of Bioscience Engineering, Center of Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, Ghent, B-9000, Belgium.,Group Research and Development, Competence Area Recycling and Extraction Technologies, Umicore, Watertorenstraat 33, Olen, B-2250, Belgium
| | - Korneel Rabaey
- Faculty of Bioscience Engineering, Center of Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, Ghent, B-9000, Belgium.,CAPTURE, Frieda Saeysstraat 1, Ghent, 9000, Belgium
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12
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Abstract
The interest in metal sulfide precipitation has recently increased given its capacity to efficiently recover several metals and metalloids from different aqueous sources, including wastewaters and hydrometallurgical solutions. This article reviews recent studies about metal sulfide precipitation, considering that the most relevant review article on the topic was published in 2010. Thus, our review emphasizes and focuses on the overall process and its main unit operations. This study follows the flow diagram definition, discussing the recent progress in the application of this process on different aqueous matrices to recover/remove diverse metals/metalloids from them, in addition to kinetic reaction and reactor types, different sulfide sources, precipitate behavior, improvements in solid–liquid separation, and future perspectives. The features included in this review are: operational conditions in terms of pH and Eh to perform a selective recovery of different metals contained in an aqueous source, the aggregation/colloidal behavior of precipitates, new materials for controlling sulfide release, and novel solid–liquid separation processes based on membrane filtration. It is therefore relevant that the direct production of nanoparticles (Nps) from this method could potentially become a future research approach with important implications on unit operations, which could possibly expand to several applications.
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Ma R, Yan X, Pu X, Fu X, Bai L, Du Y, Cheng M, Qian J. An exploratory study on the aqueous Cr(VI) removal by the sulfate reducing sludge-based biochar. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119314] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Makhathini TP, Mulopo J, Bakare BF. Sulfidogenic fluidized-bed bioreactor kinetics for co-treatment of hospital wastewater and acid mine drainage. ACTA ACUST UNITED AC 2021; 32:e00683. [PMID: 34745909 PMCID: PMC8551841 DOI: 10.1016/j.btre.2021.e00683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/05/2021] [Accepted: 10/06/2021] [Indexed: 11/05/2022]
Abstract
Bioremediation process for acidic mine water co-treatment with hospital wastewater. Metal precipitation reached 98% and soluble concentrations of Fe and Zn were less than 0.1 mg/l. SO42− removal was above 90% in the sulfidogenic bioreactor. Naproxen, ibuprofen, ketoprofen, and diclofenac partially removed during the co-treatment process.
A passive co-treatment of acid mine drainage and hospital wastewater previously demonstrated a promising bioremediation viable approach for both toxic streams. The study of inhibition kinetics and microbial communities is essential to understand better the diverse species and the reaction mechanisms within the system. The kinetics and microbiology diversity in the sulfidogenic fluidized-bed reactor (at 30 °C) for co-treatment of hospital wastewater and metal-containing acidic water were examined. The alkalinity from organic oxidation raised the pH of the effluent from 2.3 to 6.1–8.2. Michaelis-Menten modeling yielded (Km =7.3 mg/l, Vmax = 0.12 mg/l min−1) in the batch bioreactor treatment using sulfate-reducing bacteria. For COD oxidation, the dissolved sulfide inhibition constant (Ki) was 3.6 mg/l, and the Ki value for H2S was 9 mg/l. The dominant species in the treatment process belong to the Proteobacteria group (especially Deltaproteobacteria). The ibuprofen and diclofenac compounds achieved the highest removal rates in the bioreactor of 58.6% and 52.3%, respectively; while, ketoprofen and naproxen of 41.9% and 46.6%, respectively. The findings in COD kinetics, sulfate-reducing bacteria abundance, and selected pharmaceutical concentration reduction provide insight into this co-treatment process's capability.
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Affiliation(s)
- Thobeka Pearl Makhathini
- School of Chemical and Metallurgical Engineering, University of the Witwatersrand, P/Bag 3, Wits 2050, Johannesburg, South Africa.,Department of Chemical Engineering, Mangosuthu University of Technology, 511 Mangosuthu Highway, Umlazi, Durban 4031, South Africa
| | - Jean Mulopo
- School of Chemical and Metallurgical Engineering, University of the Witwatersrand, P/Bag 3, Wits 2050, Johannesburg, South Africa
| | - Babatunde Femi Bakare
- Department of Chemical Engineering, Mangosuthu University of Technology, 511 Mangosuthu Highway, Umlazi, Durban 4031, South Africa
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Menzel K, Barros L, García A, Ruby-Figueroa R, Estay H. Metal sulfide precipitation coupled with membrane filtration process for recovering copper from acid mine drainage. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118721] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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16
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Chen J, Deng S, Jia W, Li X, Chang J. Removal of multiple heavy metals from mining-impacted water by biochar-filled constructed wetlands: Adsorption and biotic removal routes. BIORESOURCE TECHNOLOGY 2021; 331:125061. [PMID: 33823487 DOI: 10.1016/j.biortech.2021.125061] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/19/2021] [Accepted: 03/21/2021] [Indexed: 06/12/2023]
Abstract
Granular biochar made from walnut shells was layered into sand-based constructed wetlands (CWs) to treat simulated mining-impacted water (MIW). The results showed that the biochar media exhibited markedly high capacities for metal binding and acidity neutralization, supported notably better plant growth and mitigated metal transfer from the plant roots to the shoots. The addition of organic liquid wastes (domestic sewage and plant straw hydrolysation broth) stimulated biogenic sulfate reduction after 40 d of adaptation to effectively remove multiple heavy metals in the MIW. The microbial community compositions were prominently regulated by organic carbon, with desirable communities dominated by Cellulomonas and Desulfobulbus formed in the CWs for MIW biotreatment. The role of macrophytes in the CWs in MIW treatment was insignificant and was dependent on operation conditions and metal species. A biochar-packed CW system with liquid organic waste supplementation was effective in metal removal and acidity neutralization of MIW.
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Affiliation(s)
- Jinquan Chen
- School of Ecology and Environmental Science & Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming 650500, China
| | - Shengjiong Deng
- School of Ecology and Environmental Science & Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming 650500, China; Institute of International Rivers and Eco-security, Yunnan University, Kunming 650500, China
| | - Wei Jia
- School of Ecology and Environmental Science & Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming 650500, China; China Machinery International Engineering Design and Research Institute Co., Ltd, Changsha 410007, China
| | - Xuan Li
- School of Ecology and Environmental Science & Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming 650500, China; Institute of International Rivers and Eco-security, Yunnan University, Kunming 650500, China
| | - Junjun Chang
- School of Ecology and Environmental Science & Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming 650500, China.
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Shi X, Mai X, Wei R, Ma Y, Naik N, He Z, Chen Y, Wang C, Dong B, Guo Z. Removing Pb2+ and As(V) from polluted water by highly reusable Fe-Mg metal-organic complex adsorbent. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2021.01.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Li G, Liang Z, Sun J, Qiu Y, Qiu C, Liang X, Zhu Y, Wang P, Li Y, Jiang F. A pilot-scale sulfur-based sulfidogenic system for the treatment of Cu-laden electroplating wastewater using real domestic sewage as electron donor. WATER RESEARCH 2021; 195:116999. [PMID: 33714911 DOI: 10.1016/j.watres.2021.116999] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 02/25/2021] [Accepted: 03/01/2021] [Indexed: 06/12/2023]
Abstract
Elemental sulfur (S0) reduction process has been demonstrated as an attractive and cost-efficient approach for metal-laden wastewater treatment in lab-scale studies. However, the system performance and stability have not been evaluated in pilot- or large-scale wastewater treatment. Especially, the sulfide production rate and microbial community structure may significantly vary from lab-scale system to pilot- or large-scale systems using real domestic sewage as carbon source, which brings questions to this novel technology. In this study, therefore, a pilot-scale sulfur-based sulfidogenic treatment system was newly developed and applied for the treatment of Cu-laden electroplating wastewaters using domestic sewage as carbon source. During the 175-d operation, >99.9% of Cu2+ (i.e., 5580 and 1187 mg Cu/L for two types of electroplating wastewaters) was efficiently removed by the biogenic hydrogen sulfide that produced through S0 reduction. Relatively high level of sulfide production (200 mg S/L) can be achieved by utilizing organics in raw domestic sewage, which was easily affected by the organic content and pH value of the domestic sewage. The long-term feeding of domestic sewage significantly re-shaped the microbial community in sulfur-reducing bioreactors. Compared to the reported lab-scale bioreactors, higher microbial community diversity was found in our pilot-scale bioreactors. The presence of hydrolytic, fermentative and sulfur-reducing bacteria was the critical factor for system stability. Accordingly, a two-step ecological interaction among fermentative and sulfur-reducing bacteria was newly proposed for sulfide production: biodegradable particulate organic carbon (BPOC) was firstly degraded to dissolved organic carbon (DOC) by the hydrolytic and fermentative bacteria. Then, sulfur-reducing bacteria utilized the total DOC (both DOC degraded from BPOC and the original DOC present in domestic sewage) as electron donor and reduced the S0 to sulfide. Afterwards, the sulfide precipitated Cu2+ in the post sedimentation tank. Compared with other reported technologies, the sulfur-based treatment system remarkable reduced the total chemical cost by 87.5‒99.6% for the same level of Cu2+ removal. Therefore, this pilot-scale study demonstrated that S0 reduction process can be a sustainable technology to generate sulfide for the co-treatment of Cu-laden electroplating wastewater and domestic sewage, achieving higher Cu2+removal and higher cost-effectiveness than the conventional technologies.
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Affiliation(s)
- Guibiao Li
- School of Environment, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China
| | - Zhensheng Liang
- School of Environment, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China
| | - Jianliang Sun
- School of Environment, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China
| | - Yanying Qiu
- School of Environmental Science & Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Chuyin Qiu
- School of Environment, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China
| | - Xiaomin Liang
- Guangzhou Zhiye Synthetic Inorganic Salt Material. Co., Ltd, Guangzhou, 511400, China
| | - Yuhang Zhu
- Guangzhou Zhiye Synthetic Inorganic Salt Material. Co., Ltd, Guangzhou, 511400, China
| | - Peng Wang
- Water Desalination and Reuse Center, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia; Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China
| | - Yu Li
- School of Environment, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China.
| | - Feng Jiang
- School of Environmental Science & Engineering, Sun Yat-sen University, Guangzhou, 510275, China.
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Abstract
The main objective of this study was to achieve the continuous biorecovery and bioreduction of Pb(II) using an industrially obtained consortia as a biocatalyst. An upflow anaerobic sludge blanket reactor was used in the treatment process. The bioremediation technique that was applied made use of a yeast extract as the microbial substrate and Pb(NO3)2 as the source of Pb(II). The UASB reactor exhibited removal efficiencies of between 90 and 100% for the inlet Pb concentrations from 80 to 2000 ppm and a maximum removal rate of 1948.4 mg/(L·d) was measured. XRD and XPS analyses of the precipitate revealed the presence of Pb0, PbO, PbS and PbSO4. Supporting experimental work carried out included growth measurements, pH, oxidation–reduction potentials and nitrate levels.
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Mahamat Ahmat A, Mamindy-Pajany Y. Over-sulfated soils and sediments treatment: A brief discussion on performance disparities of biological and non-biological methods throughout the literature. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2021; 39:528-545. [PMID: 33461442 DOI: 10.1177/0734242x20982053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
High sulfate concentrations in industrial effluents as well as solid materials (excavated soils, dredged sediments, etc.) are a major hindrance for circular economy outlooks. SO42- acceptability standards are indeed increasingly restrictive, given the potential outcomes for public health and ecosystems. This literature review deals with the treatment pathways relying on precipitation, adsorption and microbial redox principles. Although satisfactory removal performances can be achieved with each of them, significant yield differences are displayed throughout the bibliography. The challenge here was to identify the parameters leading to this variability and to assess their impact. The precipitation pathway is based on the formation of two main minerals (ettringite and barite). It can lead to total sulfate removal but can also be limited by aqueous wastes chemistry. Stabilizer kinetics of formation and equilibrium are highly constrained by background properties such as pH, Eh, SO42- saturation state and inhibiting metal occurrences. Regarding the adsorption route, sorbents' intrinsic features such as the qmax parameter govern removal yields. Concerning the microbial pathway, the chemical oxygen demand/SO42- ratio and the hydraulic retention time, which are classically evoked as yield variation factors, appear here to be weakly influential. The effect of these parameters seems to be overridden by the influence of electron donors, which constitute a first order factor of variability. A second order variability can be read according to the nature of these electron donors. Approaches using simple monomers (ethanol lactates, etc.) perform better than those using predominantly ligneous organic matter.
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Affiliation(s)
- Adoum Mahamat Ahmat
- Laboratoire de Génie Civil et géo-Environnement (LGCgE), IMT-Lille-Douai, France
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21
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Enriched Co-Treatment of Pharmaceutical and Acidic Metal-Containing Wastewater with Nano Zero-Valent Iron. MINERALS 2021. [DOI: 10.3390/min11020220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Among traditional hazardous waste sources, pharmaceutical-containing wastewater and acidic mine drainage need treatment to preserve the expected water supply quality. A nano zero-valent iron (nZVI)-enriched treatment of these two streams is evaluated for simultaneous removal of various heavy metal ions, organic pollutants, sulfates, the efficiency of the treatment system, and separation of reaction products in the fluidized-bed reactor. The reactor packed with silica sand was inoculated with sludge from an anaerobic digester, then 1–3 g/L of nZVI slurry added to cotreat a hospital feed and acid mine wastewater at 5:2 v/v. The biotreatment process is monitored through an oxidation–reduction potential (Eh) for 90 days. The removal pathway for the nZVI used co-precipitation, sorption, and reduction. The removal load for Zn and Mn was approximately 198 mg Zn/g Fe and 207 mg Mn/g Fe, correspondingly; achieving sulfate (removal efficiency of 94% and organic matter i.e., chemical oxygen demand (COD), biological oxygen demand (BOD), dissolved organic carbon (DOC), total dissolved nitrogen (TDN) reduced significantly, but ibuprofen and naproxen achieved 31% and 27% removal, respectively. This enriched cotreatment system exhibited a high reducing condition in the reactor, as confirmed by Eh; hence, the nZVI was dosed only a few times in biotreatment duration, demonstrating a cost-effective system.
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22
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Liu Y, Serrano A, Wyman V, Marcellin E, Southam G, Vaughan J, Villa-Gomez D. Nickel complexation as an innovative approach for nickel-cobalt selective recovery using sulfate-reducing bacteria. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123506. [PMID: 32712361 DOI: 10.1016/j.jhazmat.2020.123506] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/06/2020] [Accepted: 07/14/2020] [Indexed: 06/11/2023]
Abstract
This study evaluated the differences in nickel (Ni) and cobalt (Co) solubility in the presence of sulfate reducing bacteria (SRB) to evaluate the feasibility of selective recovery of both metals from mine-impacted waters. A series of sulfate reducing activity tests with Ni, Co and both metals showed that up to 99 % Ni remained soluble despite the availability of sulfide for precipitation, while Co sulfide precipitation always occurred (over 84.5 %). The characterization of proteins in the liquid phase of the experiments revealed that some proteins were only produced in the experiments where Ni displayed higher solubility, suggesting their involvement in metal complexation. Some functions of these proteins included maintaining Ni homeostasis, acting as metalloenzymes and containing Ni-binding ligands. Desulfomicrobium baculatum, Stenotrophomonas maltophilia, and Desulfovibrio magneticus, were the main responsible species producing these proteins.
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Affiliation(s)
- Yun Liu
- School of Civil Engineering, The University of Queensland, 4072 QLD, Australia.
| | - Antonio Serrano
- School of Civil Engineering, The University of Queensland, 4072 QLD, Australia
| | - Valentina Wyman
- School of Civil Engineering, The University of Queensland, 4072 QLD, Australia
| | - Esteban Marcellin
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, 4072 QLD, Australia
| | - Gordon Southam
- School of Earth and Environmental Sciences, The University of Queensland, 4072 QLD, Australia
| | - James Vaughan
- School of Chemical Engineering, The University of Queensland, 4072 QLD, Australia
| | - Denys Villa-Gomez
- School of Civil Engineering, The University of Queensland, 4072 QLD, Australia
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23
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Pei K, Xiao K, Hou H, Tao S, Xu Q, Liu B, Yu Z, Yu W, Wang H, Xue Y, Liang S, Hu J, Deng H, Yang J. Improvement of sludge dewaterability by ammonium sulfate and the potential reuse of sludge as nitrogen fertilizer. ENVIRONMENTAL RESEARCH 2020; 191:110050. [PMID: 32828760 DOI: 10.1016/j.envres.2020.110050] [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: 06/13/2020] [Revised: 07/20/2020] [Accepted: 08/07/2020] [Indexed: 06/11/2023]
Abstract
A novel method to enhance sludge dewaterability with ammonium sulfate ((NH4)2SO4) was proposed, and the potential reuse of dewatered sludge cake and filtrate as nitrogen fertilizers was evaluated. Compared with raw sludge, 87.91% reduction of capillary suction time (CST) and 88.02% reduction of specific resistance to filtration (SRF) after adding 80% (m/m) (NH4)2SO4 were achieved, with 38.49% of protein precipitated simultaneously. The (NH4)2SO4 dose destroyed cell membrane, resulting in the release of intracellular water by converting bound water into free water, thus enhancing sludge dewaterability. In the solid phase, the content of protein-N increased, and larger protein aggregates were formed. The (NH4)2SO4 dose destroyed the hydration shell, making proteins to exhibit hydrophobic interactions, and to be aggregated, and precipitated from the liquid phase. When incubated Pennisetum alopecuroides L. with the dewatered sludge cake and filtrate after dewatering and conditioning with (NH4)2SO4, the germination rate of grass seed and shoot lengths both increased while compared with those incubated with dewatered sludge cake and filtrate of the raw sludge. This study might provide insights into sustainable sludge treatment by integrating sludge dewatering and the potential reuse of dewatered sludge cake and filtrate as nitrogen fertilizer via treatment with (NH4)2SO4.
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Affiliation(s)
- Kangyue Pei
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycle Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China
| | - Keke Xiao
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycle Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China.
| | - Huijie Hou
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycle Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China.
| | - Shuangyi Tao
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycle Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China
| | - Qi Xu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycle Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China
| | - Bingchuan Liu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycle Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China
| | - Zecong Yu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycle Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China
| | - Wenbo Yu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycle Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China
| | - Hui Wang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycle Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China
| | - Ying Xue
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycle Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China
| | - Sha Liang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycle Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China
| | - Jingping Hu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycle Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China
| | - Huali Deng
- Dongjiang Environmental Company Limited, Langshan Road 9, Shenzhen, 518029, China
| | - Jiakuan Yang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycle Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China; State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, Hubei, 430074, China
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Iron-assisted biological wastewater treatment: Synergistic effect between iron and microbes. Biotechnol Adv 2020; 44:107610. [DOI: 10.1016/j.biotechadv.2020.107610] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 08/06/2020] [Accepted: 08/08/2020] [Indexed: 12/21/2022]
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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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26
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Rahman Z. An overview on heavy metal resistant microorganisms for simultaneous treatment of multiple chemical pollutants at co-contaminated sites, and their multipurpose application. JOURNAL OF HAZARDOUS MATERIALS 2020; 396:122682. [PMID: 32388182 DOI: 10.1016/j.jhazmat.2020.122682] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 04/02/2020] [Accepted: 04/07/2020] [Indexed: 05/24/2023]
Abstract
Anthropogenic imbalance of chemical pollutants in environment raises serious threat to all life forms. Contaminated sites often possess multiple heavy metals and other types of pollutants. Elimination of chemical pollutants at co-contaminated sites is imperative for the safe ecosystem functions, and simultaneous removal approach is an attractive scheme for their remediation. Different conventional techniques have been applied as concomitant treatment solution but fall short at various parameters. In parallel, use of microorganisms offers an innovative, cost effective and ecofriendly approach for simultaneous treatment of various chemical pollutants. However, microbiostasis due to harmful effects of heavy metals or other contaminants is a serious bottleneck facing remediation practices in co-contaminated sites. But certain microorganisms have unique mechanisms to resist heavy metals, and can act on different noxious wastes. Considering this significant, my review provides information on different heavy metal resistant microorganisms for bioremediation of different chemical pollutants, and other assistance. In this favour, the integrated approach of simultaneous treatment of multiple heavy metals and other environmental contaminants using different heavy metal resistant microorganisms is summarized. Further, the discussion also intends toward the use of heavy metal resistant microorganisms associated with industrial and environmental applications, and healthcare. PREFACE: Simultaneous treatment of multiple chemical pollutants using microorganisms is relatively a new approach. Therefore, this subject was not well received for review before. Also, multipurpose application of heavy metal microorganisms has certainly not considered for review. In this regard, this review attempts to gather information on recent progress on studies on different heavy metal resistant microorganisms for their potential of treatment of co-contaminated sites, and multipurpose application.
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Affiliation(s)
- Zeeshanur Rahman
- Department of Botany, Zakir Husain Delhi College, University of Delhi, Delhi, 110002, India.
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27
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Assessment of the tolerance to Fe, Cu and Zn of a sulfidogenic sludge generated from hydrothermal vents sediments as a basis for its application on metals precipitation. Mol Biol Rep 2020; 47:6165-6177. [PMID: 32749633 DOI: 10.1007/s11033-020-05690-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 07/26/2020] [Indexed: 10/23/2022]
Abstract
A paramour factor limiting metal-microorganism interaction is the metal ion concentration, and the metal precipitation efficiency driven by microorganisms is sensitive to metal ion concentration. The aim of the work was to determine the tolerance of the sulfidogenic sludge generated from hydrothermal vent sediments at microcosms level to different concentrations of Fe, Cu and Zn and the effect on the microbial community. In this study the chemical oxygen demand (COD) removal, sulfate-reducing activity (SRA) determination, inhibition effect through the determination of IC50, and the characterization of the bacterial community´s diversity were conducted. The IC50 on SRA was 34 and 81 mg/L for Zn and Cu, respectively. The highest sulfide concentration (H2S mg/L) and % of sulfate reduction obtained were: 511.30 ± 0.75 and 35.34 ± 0.51 for 50 mg/L of Fe, 482.48 ± 6.40 and 33.35 ± 0.44 for 10 mg/L of Cu, 442.26 ± 17.1 and 30.57 ± 1.18 for 10 mg/L of Zn, respectively. The COD removal rates were of 71.81 ± 7.6, 53.92 ± 1.07 and 57.68 ± 10.2 mg COD/ L d for Fe (50 mg/L), Cu (40 mg/L) and Zn (20 mg/L), respectively. Proteobacteria, Firmicutes, Chloroflexi and Actinobacteria were common phyla to four microcosms (stabilized sulfidogenic and added with Fe, Cu or Zn). The dsrA genes of Desulfotomaculum acetoxidans, Desulfotomaculum gibsoniae and Desulfovibrio desulfuricans were expressed in the microcosms supporting the SRA results. The consortia could be explored for ex-situ bioremediation purposes in the presence of the metals tested in this work.
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Su JF, Wang Z, Huang TL, Zhang H, Zhang H. Simultaneous removal of nitrate, phosphorous and cadmium using a novel multifunctional biomaterial immobilized aerobic strain Proteobacteria Cupriavidus H29. BIORESOURCE TECHNOLOGY 2020; 307:123196. [PMID: 32220820 DOI: 10.1016/j.biortech.2020.123196] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 03/14/2020] [Accepted: 03/15/2020] [Indexed: 06/10/2023]
Abstract
A novel biomaterial FeCl3/CaCl2/KH2PO4 modified municipal sludge biochar (FCPC) was synthesized. And the impacts of critical factors such as HRT, temperature and C/N ratio on simultaneous denitrification, dephosphorization and Cd(II) removal were investigated. Results show that the highest nitrate removal efficiency reached 92.22% (8.49 mg·L-1·h-1) in test group A and approximately 100% (9.19 mg·L-1·h-1) in test group B. Very low phosphate concentrations (approximately 2.50 mg/L) were detected in the effluent. The average removal efficiency of Cd(II) reached 86.40% (4.42 mg·L-1·h-1) in experimental group A and 90.15% (4.61 mg·L-1·h-1) in experimental group B. Gas emissions and biological precipitation in the bioreactors were monitored, further to confirming contaminant removal mechanisms. Additionally, Cupriavidus H29 was found to contribute dominantly to the FCPC bioreactor activity.
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Affiliation(s)
- Jun Feng Su
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; State Key Laboratory of Green Building in West China, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Zhao Wang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Ting Lin Huang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Hao Zhang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Han Zhang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
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Rambabu K, Banat F, Pham QM, Ho SH, Ren NQ, Show PL. Biological remediation of acid mine drainage: Review of past trends and current outlook. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2020; 2:100024. [PMID: 36160925 PMCID: PMC9488087 DOI: 10.1016/j.ese.2020.100024] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 02/13/2020] [Accepted: 03/18/2020] [Indexed: 05/20/2023]
Abstract
Formation of acid mine drainage (AMD) is a widespread environmental issue that has not subsided throughout decades of continuing research. Highly acidic and highly concentrated metallic streams are characteristics of such streams. Humans, plants and surrounding ecosystems that are in proximity to AMD producing sites face immediate threats. Remediation options include active and passive biological treatments which are markedly different in many aspects. Sulfate reducing bacteria (SRB) remove sulfate and heavy metals to generate non-toxic streams. Passive systems are inexpensive to operate but entail fundamental drawbacks such as large land requirements and prolonged treatment period. Active bioreactors offer greater operational predictability and quicker treatment time but require higher investment costs and wide scale usage is limited by lack of expertise. Recent advancements include the use of renewable raw materials for AMD clean up purposes, which will likely achieve much greener mitigation solutions.
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Affiliation(s)
- K. Rambabu
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Fawzi Banat
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Quan Minh Pham
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 11307, Ha Noi, Viet Nam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 11307, Ha Noi, Viet Nam
| | - Shih-Hsin Ho
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Nan-Qi Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, Semenyih, 43500, Selangor Darul Ehsan, Malaysia
- Corresponding author.
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Huang H, Biswal BK, Chen GH, Wu D. Sulfidogenic anaerobic digestion of sulfate-laden waste activated sludge: Evaluation on reactor performance and dynamics of microbial community. BIORESOURCE TECHNOLOGY 2020; 297:122396. [PMID: 31748132 DOI: 10.1016/j.biortech.2019.122396] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/05/2019] [Accepted: 11/07/2019] [Indexed: 06/10/2023]
Abstract
This study investigated the impact of sludge retention times (SRTs: 40, 20, 10 and 5 days) on performance of the sulfidogenic anaerobic digestion (SAD) reactor treating sulfate-laden waste activated sludge and dynamics of sulfate reducing bacteria (SRB). The findings showed that sulfide production, volatile sludge removal efficiency, ammonia release and methane yield decreased by 33.7%, 66.4%, 21.3% and 68.7%, respectively when SRT was shortened from 40 to 5 d. Significant enrichment of hydrolyzers/fermenters (genera Mesotoga and Sulfurovum) was observed at longer SRT (40 d), but shorter SRT (5 d) favors enrichment of diverse SRB (genera Desulfomicrobium and Desulfovibrio). PICRUSt data revealed bacterial communities possessed diverse predicted functions including sulfur metabolism enzymes (e.g. sulfate adenylyltransferase), and their abundance was higher at shorter SRT. Statistical analysis (PCA) confirmed positive relationships between SRB and SAD performance. The findings of this research could be useful for design and optimization of sulfidogenic-based anaerobic digestion process.
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Affiliation(s)
- Hao Huang
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Basanta Kumar Biswal
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Guang-Hao Chen
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Di Wu
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.
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Recovery of Metals from Waste Lithium Ion Battery Leachates Using Biogenic Hydrogen Sulfide. MINERALS 2019. [DOI: 10.3390/min9090563] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Lithium ion battery (LIB) waste is increasing globally and contains an abundance of valuable metals that can be recovered for re-use. This study aimed to evaluate the recovery of metals from LIB waste leachate using hydrogen sulfide generated by a consortium of sulfate-reducing bacteria (SRB) in a lactate-fed fluidised bed reactor (FBR). The microbial community analysis showed Desulfovibrio as the most abundant genus in a dynamic and diverse bioreactor consortium. During periods of biogenic hydrogen sulfide production, the average dissolved sulfide concentration was 507 mg L−1 and the average volumetric sulfate reduction rate was 278 mg L−1 d−1. Over 99% precipitation efficiency was achieved for Al, Ni, Co, and Cu using biogenic sulfide and NaOH, accounting for 96% of the metal value contained in the LIB waste leachate. The purity indices of the precipitates were highest for Co, being above 0.7 for the precipitate at pH 10. However, the process was not selective for individual metals due to simultaneous precipitation and the complexity of the metal content of the LIB waste. Overall, the process facilitated the production of high value mixed metal precipitates, which could be purified further or used as feedstock for other processes, such as the production of steel.
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Smith NW, Shorten PR, Altermann E, Roy NC, McNabb WC. A Mathematical Model for the Hydrogenotrophic Metabolism of Sulphate-Reducing Bacteria. Front Microbiol 2019; 10:1652. [PMID: 31379794 PMCID: PMC6653664 DOI: 10.3389/fmicb.2019.01652] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 07/03/2019] [Indexed: 12/13/2022] Open
Abstract
Sulphate-reducing bacteria (SRB) are studied across a range of scientific fields due to their characteristic ability to metabolise sulphate and produce hydrogen sulphide, which can lead to significant consequences for human activities. Importantly, they are members of the human gastrointestinal microbial population, contributing to the metabolism of dietary and host secreted molecules found in this environment. The role of the microbiota in host digestion is well studied, but the full role of SRB in this process has not been established. Moreover, from a human health perspective, SRB have been implicated in a number of functional gastrointestinal disorders such as Irritable Bowel Syndrome and the development of colorectal cancer. To assist with the study of SRB, we present a mathematical model for the growth and metabolism of the well-studied SRB, Desulfovibrio vulgaris in a closed system. Previous attempts to model SRB have resulted in complex or highly specific models that are not easily adapted to the study of SRB in different environments, such as the gastrointestinal tract. We propose a simpler, Monod-based model that allows for easy alteration of both key parameter values and the governing equations to enable model adaptation. To prevent any incorrect assumptions about the nature of SRB metabolic pathways, we structure the model to consider only the concentrations of initial and final metabolites in a pathway, which circumvents the current uncertainty around hydrogen cycling by SRB. We parameterise our model using experiments with varied initial substrate conditions, obtaining parameter values that compare well with experimental estimates in the literature. We then validate our model against four independent experiments involving D. vulgaris with further variations to substrate availability. Further use of the model will be possible in a number of settings, notably as part of larger models studying the metabolic interactions between SRB and other hydrogenotrophic microbes in the human gastrointestinal tract and how this relates to functional disorders.
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Affiliation(s)
- Nick W Smith
- AgResearch, Ruakura Research Centre, Hamilton, New Zealand.,AgResearch, Grasslands Research Centre, Palmerston North, New Zealand.,Riddet Institute, Massey University, Palmerston North, New Zealand.,School of Food and Advanced Technology, Massey University, Palmerston North, New Zealand
| | - Paul R Shorten
- AgResearch, Ruakura Research Centre, Hamilton, New Zealand.,Riddet Institute, Massey University, Palmerston North, New Zealand
| | - Eric Altermann
- AgResearch, Grasslands Research Centre, Palmerston North, New Zealand.,Riddet Institute, Massey University, Palmerston North, New Zealand
| | - Nicole C Roy
- AgResearch, Grasslands Research Centre, Palmerston North, New Zealand.,Riddet Institute, Massey University, Palmerston North, New Zealand.,High-Value Nutrition National Science Challenge, The University of Auckland, Auckland, New Zealand
| | - Warren C McNabb
- Riddet Institute, Massey University, Palmerston North, New Zealand.,High-Value Nutrition National Science Challenge, The University of Auckland, Auckland, New Zealand
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Sinharoy A, Pakshirajan K. Heavy metal sequestration by sulfate reduction using carbon monoxide as the sole carbon and energy source. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.04.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yao K, Jia M, Wu H, Li Y, Chen C, Huang Y. Synthesis of BiOCl using Cl source from industrial wastewater and its application for wastewater treatment. ENVIRONMENTAL TECHNOLOGY 2019; 40:374-385. [PMID: 29047325 DOI: 10.1080/09593330.2017.1393014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 09/29/2017] [Indexed: 06/07/2023]
Abstract
Cl- in industrial wastewater from glyphosate production has been used as Cl source to synthesize BiOCl photocatalyst via a simple solvothermal route. The crystalline, morphology, specific surface area and optical properties of photocatalysts prepared under various conditions have been investigated. BiOCl photocatalyst prepared in acidic solution shows the highest crystallinity and without impurities and microcellular structure. The degradation of industrial wastewater contaminants demonstrates the possibility of this BiOCl used in industrial wastewater treatment and phosphorus recycling through the subsequent phosphorus recovery processes. This study not only sheds light on the possibility of photocatalysts' preparation in situ using industrial wasterwater as raw materials and the feasibility of using photocatalysis technology in wastewater treatment area, but also the chloride ions have been removed as an available resource and the corrosion to treatment facilities has been slowed down. The phosphorus and nitrogen resources can be recycled by other subsequent recycle recoveries. It offers a novel way for the wastewater treatment process in succession from photocatalysts' manufacture to contaminants disposal.
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Affiliation(s)
- Kun Yao
- a College of Biological and Pharmaceutical Sciences , China Three Gorges University , Hubei Yichang , People's Republic of China
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education , China Three Gorges University , Hubei Yichang , People's Republic of China
| | - Manke Jia
- a College of Biological and Pharmaceutical Sciences , China Three Gorges University , Hubei Yichang , People's Republic of China
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education , China Three Gorges University , Hubei Yichang , People's Republic of China
| | - Huanhuan Wu
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education , China Three Gorges University , Hubei Yichang , People's Republic of China
| | - Yonggang Li
- c Hubei Xingfa Chemicals Group Co. Ltd , Hubei Yichang , People's Republic of China
| | - Chuncheng Chen
- a College of Biological and Pharmaceutical Sciences , China Three Gorges University , Hubei Yichang , People's Republic of China
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education , China Three Gorges University , Hubei Yichang , People's Republic of China
| | - Yingping Huang
- a College of Biological and Pharmaceutical Sciences , China Three Gorges University , Hubei Yichang , People's Republic of China
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education , China Three Gorges University , Hubei Yichang , People's Republic of China
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Pan L, Li Q, Zhou Y, Song N, Yu L, Wang X, Xiong K, Yap L, Huo J. Effects of different calcium sources on the mineralization and sand curing of CaCO3 by carbonic anhydrase-producing bacteria. RSC Adv 2019; 9:40827-40834. [PMID: 35540045 PMCID: PMC9076266 DOI: 10.1039/c9ra09025h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 11/25/2019] [Indexed: 02/03/2023] Open
Abstract
The deposition and dissolution of calcium carbonate can be affected by the action of biological factors, such as microbial-induced carbonate precipitation (MICP).
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Affiliation(s)
- Ling Pan
- Life Science and Engineering College
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - Qiongfang Li
- Life Science and Engineering College
- Southwest University of Science and Technology
- Mianyang 621010
- China
- Key Laboratory of Solid Waste Treatment and Resource Recycle
| | - Yi Zhou
- School of Agriculture
- Food & Wine
- Waite Campus
- The University of Adelaide
- Urrbrae
| | - Na Song
- Life Science and Engineering College
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - Lujia Yu
- Life Science and Engineering College
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - Xuhui Wang
- Life Science and Engineering College
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - Ke Xiong
- Life Science and Engineering College
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - LikSen Yap
- Life Science and Engineering College
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - Jianlin Huo
- Life Science and Engineering College
- Southwest University of Science and Technology
- Mianyang 621010
- China
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36
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Batch study on the removal of mercury (II) ion from industrial wastewater using activated palm oil fuel ash. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.matpr.2019.06.536] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kumar M, Sinharoy A, Pakshirajan K. Process integration for biological sulfate reduction in a carbon monoxide fed packed bed reactor. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 219:294-303. [PMID: 29753237 DOI: 10.1016/j.jenvman.2018.04.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 03/26/2018] [Accepted: 04/06/2018] [Indexed: 06/08/2023]
Abstract
This study examined immobilized anaerobic biomass for sulfate reduction using carbon monoxide (CO) as the sole carbon source under batch and continuous fed conditions. The immobilized bacteria with beads made of 10% polyvinyl alcohol (PVA) showed best results in terms of sulfate reduction (84 ± 3.52%) and CO utilization (98 ± 1.67%). The effect of hydraulic retention time (HRT), sulfate loading rate and CO loading rate on sulfate and CO removal was investigated employing a 1L packed bed bioreactor containing the immobilized biomass. At 48, 24 and 12 h HRT, the sulfate removal was 94.42 ± 0.15%, 89.75 ± 0.47% and 61.08 ± 0.34%, respectively, along with a CO utilization of more than 90%. The analysis of variance (ANOVA) of the results obtained showed that only the initial CO concentration significantly affected the sulfate reduction process. The reactor effluent sulfate concentrations were 27.41 ± 0.44, 59.16 ± 1.08, 315.83 ± 7.33 mg/L for 250, 500 and 1000 mg/L of influent sulfate concentrations respectively, under the optimum operating conditions. The sulfate reduction rates matched well with low inlet sulfate loading rates, indicating stable performance of the bioreactor system. Overall, this study yielded very high sulfate reduction efficiency by the immobilized anaerobic biomass under high CO loading condition using the packed bed reactor system.
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Affiliation(s)
- Manoj Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Arindam Sinharoy
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Kannan Pakshirajan
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.
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Navamani Kartic D, Aditya Narayana BC, Arivazhagan M. Removal of high concentration of sulfate from pigment industry effluent by chemical precipitation using barium chloride: RSM and ANN modeling approach. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 206:69-76. [PMID: 29059573 DOI: 10.1016/j.jenvman.2017.10.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 10/05/2017] [Accepted: 10/08/2017] [Indexed: 06/07/2023]
Abstract
Sulfate ions pose a major threat and challenge in the treatment of industrial effluents. The sample of wastewater obtained from a pigment industry contained large quantities of sulfate in the form of sodium sulfate which resulted in high TDS. As the removal of sulfate from pigment industry effluent was not reported previously, this work was focused on removing the sulfate ions from the effluent by chemical precipitation using barium chloride. The efficiency of sulfate removal was nearly 100% at an excess dosage of barium chloride, which precipitates the dissolved sulfate ions in the form of barium sulfate. Optimization of the parameters was done using Response Surface Methodology (RSM). This work is the first attempt for modeling the removal of sulfate from pigment industry effluent using RSM and Artificial Neural Network (ANN). Prediction by both the models was evaluated and both of them exhibited good performance (R2 value > 0.99). It was observed that the prediction by RSM (R2 value 0.9986) was closer to the experimental results than ANN prediction (R2 value 0.9955). The influence on the pH and conductivity of the solution by dosage of precipitant was also studied. The formation of barium sulfate was confirmed by characterization of the precipitate. Therefore, the sulfate removed from the effluent was converted into a commercially valuable precipitate.
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Affiliation(s)
- D Navamani Kartic
- Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli 620015, Tamil Nadu, India
| | - B Ch Aditya Narayana
- Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli 620015, Tamil Nadu, India
| | - M Arivazhagan
- Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli 620015, Tamil Nadu, India.
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Iron-oxide modified sericite alginate beads: A sustainable adsorbent for the removal of As(V) and Pb(II) from aqueous solutions. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.05.086] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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