1
|
Yang Y, Zhang J, Dong S, Li M, Yang P, Meng H, Xiao J. Sustainable Cr(VI) reduction in a membrane-less TPBC-MFC driven by solid watermelon rind. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 370:122637. [PMID: 39326072 DOI: 10.1016/j.jenvman.2024.122637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 09/02/2024] [Accepted: 09/21/2024] [Indexed: 09/28/2024]
Abstract
Sustainable Cr(VI) reduction by microbial fuel cell (MFC) is a major challenge due to the electrode passivation and available electron donors. In this study, the chromate removal across a period of more than three months in a membrane-less TPBC-MFC with solid watermelon rind (SWMR) as electron donors was investigated. The TPBC benefited the Cr(VI) reduction and voltage output owing to the enhanced mass transfer. The average Cr(VI) removal efficiency (RE) of 97%, effluent COD of 80 mg/L and voltage output of 130 mV were achieved during the long-term operation on the TPBC-MFC. The SEM-EDS analysis showed that all biofilms were predominated by rod- and coccus-shaped bacteria and the Cr(VI) reduction was mainly carried out by the S-cathode. The XPS, XRD and FT-IR analysis revealed that the major product of cathodic Cr(VI) reduction was a Cr(III) precipitate in the form of Cr(OH)3. Microbial community structure disclosed that fermentation microorganisms (e.g. Anaeroarcus) and electroactive bacteria (e.g. Porphyromonadaceae) jointly responsible for SWMR degradation and electricity generation were dominant at the anode, while the chromate-associated microorganisms (e.g. Comamonadaceae and Cloacibacterium) dominated at the cathode. The biofilms adsorbing Cr(OH)3 precipitates fell off from the cathode periodically to avoid the passivation. Overall, our study suggests a really sustainable approach with which a goal of simultaneously reusing watermelon rind, reducing Cr(VI) and producing electricity was attained perfectly.
Collapse
Affiliation(s)
- Yunlong Yang
- College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, 325035, China; National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou University, Wenzhou, Zhejiang, 325035, China.
| | - Jinkui Zhang
- College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Sijia Dong
- College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Minjie Li
- College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Pan Yang
- College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Heng Meng
- College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Jibo Xiao
- College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, 325035, China; Wenzhou Chuangyuan Environment Technology Co. Ltd., Wenzhou, Zhejiang, 325036, China.
| |
Collapse
|
2
|
Ma L, Chen N, Feng C, Yang Q. Recent advances in enhanced technology of Cr(VI) bioreduction in aqueous condition: A review. CHEMOSPHERE 2024; 351:141176. [PMID: 38211783 DOI: 10.1016/j.chemosphere.2024.141176] [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: 06/07/2023] [Revised: 12/11/2023] [Accepted: 01/08/2024] [Indexed: 01/13/2024]
Abstract
Due to the extensive application of chromate in industry, chromium-contaminated water has emerged as a significant hidden danger that threatens human health and the safety of the ecological environment. The reduction of Cr(VI) to Cr(III) through microbial processes has become one of the most notable methods for remediating water polluted by chromium due to its economic efficiency and environmentally friendly nature. However, several issues persist in its practical application, such as low reduction rates, the need for additional nutrients, and challenges in solid-liquid separation. Therefore, there is a growing focus on seeking enhanced methods for Cr(VI) microbial reduction, which has become a key area of research. This review represents the initial effort to systematically classify and summarize the means of enhancing Cr(VI) microbial reduction. It categorizes the enhancement methods into two main approaches: microbial-based and multi-method combined enhancement, offering detailed explanations for their mechanisms. This research provides both inspiration and theoretical support for the practical implementation of the Cr(VI) microbial reduction method.
Collapse
Affiliation(s)
- Linlin Ma
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing, 100124, PR China; School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, PR China
| | - Nan Chen
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, PR China
| | - Chuanping Feng
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, PR China
| | - Qing Yang
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing, 100124, PR China.
| |
Collapse
|
3
|
Wang H, Zhai P, Long X, Ma J, Li Y, Liu B, Xu Z. Research progress on using biological cathodes in microbial fuel cells for the treatment of wastewater containing heavy metals. Front Microbiol 2023; 14:1270431. [PMID: 37789847 PMCID: PMC10544973 DOI: 10.3389/fmicb.2023.1270431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/04/2023] [Indexed: 10/05/2023] Open
Abstract
Various types of electroactive microorganisms can be enriched to form biocathodes that reduce charge-transfer resistance, thereby accelerating electron transfer to heavy metal ions with high redox potentials in microbial fuel cells. Microorganisms acting as biocatalysts on a biocathode can reduce the energy required for heavy metal reduction, thereby enabling the biocathode to achieve a lower reduction onset potential. Thus, when such heavy metals replace oxygen as the electron acceptor, the valence state and morphology of the heavy metals change under the reduction effect of the biocathode, realizing the high-efficiency treatment of heavy metal wastewater. This study reviews the mechanisms, primary influencing factors (e.g., electrode material, initial concentration of heavy metals, pH, and electrode potential), and characteristics of the microbial community of biocathodes and discusses the electron distribution and competition between microbial electrodes and heavy metals (electron acceptors) in biocathodes. Biocathodes reduce the electrochemical overpotential in heavy metal reduction, permitting more electrons to be used. Our study will advance the scientific understanding of the electron transport mechanism of biocathodes and provide theoretical support for the use of biocathodes to purify heavy metal wastewater.
Collapse
Affiliation(s)
- Hui Wang
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, China
- Department of Municipal and Environmental Engineering, School of Water Resources and Hydro-Electric Engineering, Xi'an University of Technology, Xi'an, China
| | - Pengxiang Zhai
- Department of Municipal and Environmental Engineering, School of Water Resources and Hydro-Electric Engineering, Xi'an University of Technology, Xi'an, China
| | - Xizi Long
- Key Laboratory of Typical Environmental Pollution and Health Hazards of Hunan Province, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
| | - Jianghang Ma
- Department of Municipal and Environmental Engineering, School of Water Resources and Hydro-Electric Engineering, Xi'an University of Technology, Xi'an, China
| | - Yu Li
- Department of Municipal and Environmental Engineering, School of Water Resources and Hydro-Electric Engineering, Xi'an University of Technology, Xi'an, China
| | - Bo Liu
- Department of Municipal and Environmental Engineering, School of Water Resources and Hydro-Electric Engineering, Xi'an University of Technology, Xi'an, China
| | - Zhiqiang Xu
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, China
- Department of Municipal and Environmental Engineering, School of Water Resources and Hydro-Electric Engineering, Xi'an University of Technology, Xi'an, China
| |
Collapse
|
4
|
Zhuang X, Tang S, Dong W, Xin F, Jia H, Wu X. Improved performance of Cr(vi)-reducing microbial fuel cells by nano-FeS hybridized biocathodes. RSC Adv 2023; 13:6768-6778. [PMID: 36860531 PMCID: PMC9969982 DOI: 10.1039/d3ra00683b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 02/22/2023] [Indexed: 03/02/2023] Open
Abstract
Biocathode microbial fuel cells (MFCs) show promise for Cr(vi)-contaminated wastewater treatment. However, biocathode deactivation and passivation caused by highly toxic Cr(vi) and nonconductive Cr(iii) deposition limit the development of this technology. A nano-FeS hybridized electrode biofilm was fabricated by simultaneously feeding Fe and S sources into the MFC anode. This bioanode was then reversed as the biocathode to treat Cr(vi)-containing wastewater in a MFC. The MFC obtained the highest power density (40.75 ± 0.73 mW m-2) and Cr(vi) removal rate (3.99 ± 0.08 mg L-1 h-1), which were 1.31 and 2.00 times those of the control, respectively. The MFC also maintained high stability for Cr(vi) removal in three consecutive cycles. These improvements were due to synergistic effects of nano-FeS with excellent properties and microorganisms in the biocathode. The mechanisms were: (1) the accelerated electron transfer mediated by nano-FeS 'electron bridges' strengthened bioelectrochemical reactions, firstly realizing deep reduction of Cr(vi) to Cr(0) and thus effectively alleviating cathode passivation; (2) nano-FeS as 'armor' layers improved cellular viability and extracellular polymeric substance secretion; (3) the biofilm selectively enriched a diversity of bifunctional bacteria for electrochemical activity and Cr(vi) removal. This study provides a new strategy to obtain electrode biofilms for sustainable treatment of heavy metal wastewater.
Collapse
Affiliation(s)
- Xinglei Zhuang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University Nanjing 211816 China +86 25 58139929 +86 25 58139929
| | - Shien Tang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University Nanjing 211816 China +86 25 58139929 +86 25 58139929
| | - Weiliang Dong
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University Nanjing 211816 China +86 25 58139929 +86 25 58139929
| | - Fengxue Xin
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University Nanjing 211816 China +86 25 58139929 +86 25 58139929
| | - Honghua Jia
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University Nanjing 211816 China +86 25 58139929 +86 25 58139929
| | - Xiayuan Wu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University Nanjing 211816 China +86 25 58139929 +86 25 58139929
| |
Collapse
|
5
|
Li D, Feng Y, Li F, Tang J, Hua T. Carbon Fibers for Bioelectrochemical: Precursors, Bioelectrochemical System, and Biosensors. ADVANCED FIBER MATERIALS 2023; 5:699-730. [PMID: 36818429 PMCID: PMC9923679 DOI: 10.1007/s42765-023-00256-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 01/02/2023] [Indexed: 05/27/2023]
Abstract
Abstract Carbon fibers (CFs) demonstrate a range of excellent properties including (but not limited to) microscale diameter, high hardness, high strength, light weight, high chemical resistance, and high temperature resistance. Therefore, it is necessary to summarize the application market of CFs. CFs with good physical and chemical properties stand out among many materials. It is believed that highly fibrotic CFs will play a crucial role. This review first introduces the precursors of CFs, such as polyacrylonitrile, bitumen, and lignin. Then this review introduces CFs used in BESs, such as electrode materials and modification strategies of MFC, MEC, MDC, and other cells in a large space. Then, CFs in biosensors including enzyme sensor, DNA sensor, immune sensor and implantable sensor are summarized. Finally, we discuss briefly the challenges and research directions of CFs application in BESs, biosensors and more fields. Highlights CF is a new-generation reinforced fiber with high hardness and strength.Summary precursors from different sources of CFs and their preparation processes.Introduction of the application and modification methods of CFs in BESs and biosensor.Suggest the challenges in the application of CFs in the field of bio-electrochemistry.Propose the prospective research directions for CFs. Graphical abstract
Collapse
Affiliation(s)
- Donghao Li
- College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Tianjin, 300350 China
- Key Laboratory of Pollution Process and Environmental Criteria, Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, Tianjin, 300350 China
| | - Yimeng Feng
- College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Tianjin, 300350 China
- Key Laboratory of Pollution Process and Environmental Criteria, Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, Tianjin, 300350 China
| | - Fengxiang Li
- College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Tianjin, 300350 China
- Key Laboratory of Pollution Process and Environmental Criteria, Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, Tianjin, 300350 China
| | - Jingchun Tang
- College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Tianjin, 300350 China
- Key Laboratory of Pollution Process and Environmental Criteria, Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, Tianjin, 300350 China
| | - Tao Hua
- College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Tianjin, 300350 China
- Key Laboratory of Pollution Process and Environmental Criteria, Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, Tianjin, 300350 China
| |
Collapse
|
6
|
Srivastava RK, Sarangi PK, Vivekanand V, Pareek N, Shaik KB, Subudhi S. Microbial fuel cells for waste nutrients minimization: Recent process technologies and inputs of electrochemical active microbial system. Microbiol Res 2022; 265:127216. [DOI: 10.1016/j.micres.2022.127216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 09/19/2022] [Accepted: 09/27/2022] [Indexed: 11/30/2022]
|
7
|
Wang S, Adekunle A, Raghavan V. Bioelectrochemical systems-based metal removal and recovery from wastewater and polluted soil: Key factors, development, and perspective. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 317:115333. [PMID: 35617867 DOI: 10.1016/j.jenvman.2022.115333] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/28/2022] [Accepted: 05/14/2022] [Indexed: 06/15/2023]
Abstract
Bioelectrochemical systems (BES) are considered efficient and sustainable technologies for bioenergy generation and simultaneously removal/recovery metal (loid)s from soil and wastewater. However, several current challenges of BES-based metal removal and recovery, especially concentrating target metals from complex contaminated wastewater or soil and their economic feasibility of engineering applications. This review summarized the applications of BES-based metal removal and recovery systems from wastewater and contaminated soil and evaluated their performances on electricity generation and metal removal/recovery efficiency. In addition, an in depth review of several key parameters (BES configurations, electrodes, catalysts, metal concentration, pH value, substrate categories, etc.) of BES-based metal removal and recovery was carried out to facilitate a deep understanding of their development and to suggest strategies for scaling up their specific application fields. Finally, the future intervention on multifunctional BES to improve their performances of mental removal and recovery were revealed.
Collapse
Affiliation(s)
- Shuyao Wang
- Bioresource Engineering, McGill University, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC, H9X 3V9, Canada.
| | - Ademola Adekunle
- National Research Council of Canada, 6100 Avenue Royalmount, Montréal, QC, H4P 2R2, Canada.
| | - Vijaya Raghavan
- Bioresource Engineering, McGill University, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC, H9X 3V9, Canada.
| |
Collapse
|
8
|
Wang D, Zong Z, Ye J, Wu Q, Zhang X, Wu Z, Zhang J, Xu H, Cai D. A sodium hyposulfite fuel cell for efficient Cr(VI) removal. CHEMOSPHERE 2022; 294:133803. [PMID: 35104540 DOI: 10.1016/j.chemosphere.2022.133803] [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: 10/28/2021] [Revised: 12/25/2021] [Accepted: 01/28/2022] [Indexed: 06/14/2023]
Abstract
This work shows a strategy of reducing hexavalent chromium (Cr(VI)) by sodium hyposulfite (Na2S2O3) with self-generated electricity via a dual-chamber non-biological fuel cell (D-nBFC). Therein, Na2S2O3 was electro-oxidized on graphite felt (GF) at anode and Cr(VI) in strong acidic solution was electro-reduced at GF/CCP cathode (GF decorated with conductive carbon paint (CCP)). Additionally, an agar salt bridge, consisting of saturated KCl solution, was introduced to form complete circuit by offering ions. The results showed that Cr(VI) was reduced to trivalent chromium (Cr(III)) and the D-nBFC system could produce electricity in this process. This system could obtain a high Cr(VI) removal efficiency (97.0%), 110 μA maximum current, and 13.4 mW m-2 maximum power density in 4 h. In addition, the proposed system had high reusability after five cycles and the relative standard deviation was only 3.4% (n = 5). Thus, this D-nBFC system provides a promising and eco-friendly method for treatment of Cr(VI) pollution and generating electricity simultaneously, and also has potential application value for other heavy metals remediation.
Collapse
Affiliation(s)
- Dongfang Wang
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, People's Republic of China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, People's Republic of China
| | - Zhiqiang Zong
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, People's Republic of China
| | - Jinghong Ye
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, People's Republic of China
| | - Qingchuan Wu
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230031, People's Republic of China
| | - Xiaojiang Zhang
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, People's Republic of China
| | - Zhengyan Wu
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230031, People's Republic of China
| | - Jing Zhang
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, People's Republic of China
| | - He Xu
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, People's Republic of China.
| | - Dongqing Cai
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, People's Republic of China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, People's Republic of China.
| |
Collapse
|
9
|
Ni H, Khan A, Yang Z, Gong Y, Ali G, Liu P, Chen F, Li X. Wood carbon electrode in microbial fuel cell enhances chromium reduction and bioelectricity generation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:13709-13719. [PMID: 34595714 DOI: 10.1007/s11356-021-16652-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/17/2021] [Indexed: 06/13/2023]
Abstract
Microbial fuel cell (MFC) is a recommended treatment to remediate hexavalent chromium (Cr(VI)) in wastewater. In this study, a wood carbon (WC) electrode was introduced in MFC to enhance the Cr(VI) removal efficiency. WC electrode in MFC completely removed Cr(VI) as compared to the carbon cloth (31.12%) and carbon felt (34.83) within 48 h of operation at 20 mg L-1 of Cr(VI) concentration. The maximum power density of WC electrode was 62.59 mW m-2 higher than 0.115 and 3.154 mW m-2 of carbon cloth and felt respectively. The specific surface area of WC increased to 158.47 m-2 g-1 after high-temperature carbonization, and electrochemical tests indicate it has higher electrocatalytic ability. Therefore, WC might be a good electrode material to effectively remove Cr(VI) and generate bioelectricity simultaneously.
Collapse
Affiliation(s)
- Hongyuhang Ni
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, 730000, People's Republic of China
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Aman Khan
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, 730000, People's Republic of China
| | - Zi Yang
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou, Gansu, 730000, People's Republic of China
| | - Yuxin Gong
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, 730000, People's Republic of China
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, People's Republic of China
| | - Gohar Ali
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, 730000, People's Republic of China
| | - Pu Liu
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, 730000, People's Republic of China
| | - Fengjuan Chen
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou, Gansu, 730000, People's Republic of China.
| | - Xiangkai Li
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, 730000, People's Republic of China.
| |
Collapse
|
10
|
Anjum A, Ali Mazari S, Hashmi Z, Sattar Jatoi A, Abro R. A review of role of cathodes in the performance of microbial fuel cells. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115673] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
11
|
Li S, Zhu X, Yu H, Wang X, Liu X, Yang H, Li F, Zhou Q. Simultaneous sulfamethoxazole degradation with electricity generation by microbial fuel cells using Ni-MOF-74 as cathode catalysts and quantification of antibiotic resistance genes. ENVIRONMENTAL RESEARCH 2021; 197:111054. [PMID: 33775682 DOI: 10.1016/j.envres.2021.111054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/25/2021] [Accepted: 03/17/2021] [Indexed: 06/12/2023]
Abstract
Antibiotic wastewater presents serious challenges in water treatment. Metal-organic frameworks (MOFs) have received significant attention as promising precursors and sacrificial templates in the preparation of porous carbon-supported catalysts. Herein, we investigated the sulfamethoxazole (SMX) degradation and electrochemical performance of microbial fuel cells (MFCs) that applied as-prepared Ni-MOF-74 and Ni-N-C (Ni-MOF-74 underwent pyrolysis treatment at different temperatures) as air-cathode catalyst. Firstly, the electrocatalytic activity towards oxygen reduction reaction (ORR) of the catalyst was investigated by rotating disk electrode. The results showed that electron transfer number for Ni-MOF-74 was 2.12, while that of 800Ni-N-C was 3.44, which was close to four-electron reduction. Applying Ni-MOF-74 in MFCs, a maximum power density of 446 mW/m2 was obtained, which was close to that of 800Ni-N-C. Besides, using Ni-MOF-74 as cathode catalyst, a chemical oxygen demand removal rate of about 84% was obtained, and the degradation rate of 10 mg/L SMX was 61%. The degradation rate decreased with increasing antibiotic concentration, but the average degradation efficiency increased stepwise. Additionally, the relative abundance of resistant gene sul1 in the reactors of the new catalytic material was about 62% lower than that of sul1 in the control (Pt/C) reactors, and the relative abundance of sul2 was about 73% lower. Moreover, cost assessments related to the catalyst performance are presented. The findings of this study demonstrated that Ni-MOF-74 could be considered as a two-electron transfer ORR catalyst, and offers a promising technique for preparation of Ni-N-C for use as four-electron transfer ORR catalysts. In comparison, Ni-MOF-74 could be a promising ORR catalyst of MFCs for antibiotic degradation.
Collapse
Affiliation(s)
- Shengnan Li
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Remediation and Pollution Control for Urban Ecological Environmental, Nankai University, Tianjin, 300350 China; State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province, 150090, China
| | - Xuya Zhu
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Remediation and Pollution Control for Urban Ecological Environmental, Nankai University, Tianjin, 300350 China
| | - Hang Yu
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Remediation and Pollution Control for Urban Ecological Environmental, Nankai University, Tianjin, 300350 China
| | - Xizi Wang
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Remediation and Pollution Control for Urban Ecological Environmental, Nankai University, Tianjin, 300350 China
| | - Xiaqing Liu
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Remediation and Pollution Control for Urban Ecological Environmental, Nankai University, Tianjin, 300350 China
| | - Hui Yang
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Remediation and Pollution Control for Urban Ecological Environmental, Nankai University, Tianjin, 300350 China
| | - Fengxiang Li
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Remediation and Pollution Control for Urban Ecological Environmental, Nankai University, Tianjin, 300350 China.
| | - Qixing Zhou
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Remediation and Pollution Control for Urban Ecological Environmental, Nankai University, Tianjin, 300350 China
| |
Collapse
|
12
|
Ma W, Gao J, Chen Z, Hu J, Xin G, Pan Y, Zhang Z, Tan D. A new method of Cr(VI) reduction using SiC doped carbon electrode and Cr(III) recovery by hydrothermal precipitation. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125724] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
|
13
|
Xia X, Wu S, Zhou Z, Wang G. Microbial Cd(II) and Cr(VI) resistance mechanisms and application in bioremediation. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123685. [PMID: 33113721 DOI: 10.1016/j.jhazmat.2020.123685] [Citation(s) in RCA: 83] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 07/16/2020] [Accepted: 08/05/2020] [Indexed: 05/21/2023]
Abstract
The heavy metals cadmium (Cd) and chromium (Cr) are extensively used in industry and result in water and soil contamination. The highly toxic Cd(II) and Cr(VI) are the most common soluble forms of Cd and Cr, respectively. They enter the human body through the food chain and drinking water and then cause serious illnesses. Microorganisms can adsorb metals or transform Cd(II) and Cr(VI) into insoluble or less bioavailable forms, and such strategies are applicable in Cd and Cr bioremediation. This review focuses on the highlighting of novel achievements on microbial Cd(II) and Cr(VI) resistance mechanisms and their bioremediation applications. In addition, the knowledge gaps and research perspectives are also discussed in order to build a bridge between the theoretical breakthrough and the resolution of Cd(II) and Cr(VI) contamination problems.
Collapse
Affiliation(s)
- Xian Xia
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; Hubei Key Laboratory of Edible Wild Plants Conservation & Utilization, Hubei Engineering Research Center of Special Wild Vegetables Breeding and Comprehensive Utilization Technology, National Experimental Teaching Demonstrating Center, College of Life Sciences, Hubei Normal University, Huangshi, 435002, PR China
| | - Shijuan Wu
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Zijie Zhou
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Gejiao Wang
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.
| |
Collapse
|
14
|
Zhou J, Li M, Zhou W, Hu J, Long Y, Tsang YF, Zhou S. Efficacy of electrode position in microbial fuel cell for simultaneous Cr(VI) reduction and bioelectricity production. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 748:141425. [PMID: 32798878 DOI: 10.1016/j.scitotenv.2020.141425] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 07/27/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
Microbial fuel cells (MFCs) that are bio-energy transducers capture bioelectricity produced from the oxidation of organic matter by using the electro-active bacteria grown on the biofilm attached on anode. Previous studies explored the effect of several limiting factors, such as electrode material, catalyst type, membrane structure, and electrolyte, on the electrochemical performance of MFCs. However, the effects of electrode position on Cr(VI) reduction and bioelectricity production remain unknown. In this study, MFCs with different electrode positions (i.e., 4 cm (MFC-4), 3 cm (MFC-3), 2 cm (MFC-2), and 1 cm (MFC-1)) were designed and fabricated to evaluate the overall performance of MFCs. The results of electrochemical analysis confirmed that MFC-2 exhibited low exchange transfer resistance (4.9 Ω) and strong conductivity, resulting in optimal electrochemical performance. In addition, Cr(VI) was completely removed within 11 h in MFC-2 with a large reduction rate of 0.91 g/m3·h. and COD removal efficiency of 78.25%. The overall performance of MFC-2 was comparatively higher than those of MFC-1 (0.80 g/m3·h and 68.82%), MFC-3 (0.64 g/m3·h and 61.67%), and MFC-4 (0.52 g/m3·h and 39.85%). Meanwhile, MFC-2 generated high open voltage (1.02 V) and power density (535.4 mW/m2), which are 1.4- and 3.1-fold larger than those of MFC-4 (0.72 V and 171.3 mW/m2). High COD removal and power density indicated the strong electrochemical activity of electroactive bacteria in the anode chamber of the MFCs, which was due to the low resistance in the MFCs could accelerate electron transfer and boost electrochemical reaction. Consequently, the optimal electrode spacing in MFCs was 2 cm. Further studies confirmed that Cr(VI) was removed and deposited in the form of Cr(III) on the electrode surface. High-throughput analysis suggested Pseudomonas species are the key electroactive bacteria for electricity generation.
Collapse
Affiliation(s)
- Juan Zhou
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, 510006, PR China; Guizhou Academy of Sciences, Shanxi Road 1, Guiyang 550001, PR China
| | - Meng Li
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, 510006, PR China; Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China.
| | - Wei Zhou
- Guizhou Academy of Sciences, Shanxi Road 1, Guiyang 550001, PR China
| | - Jing Hu
- Guizhou Academy of Sciences, Shanxi Road 1, Guiyang 550001, PR China
| | - Yunchuan Long
- Guizhou Academy of Sciences, Shanxi Road 1, Guiyang 550001, PR China
| | - Yiu Fai Tsang
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, New Territories, 999077, Hong Kong
| | - Shaoqi Zhou
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, 510006, PR China; Guizhou Academy of Sciences, Shanxi Road 1, Guiyang 550001, PR China.
| |
Collapse
|
15
|
Enhanced chromium recovery and simultaneous sludge degradation in a novel bioelectrochemical system assembled with bio/abio-cathodes. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117229] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
16
|
Wang H, Song X, Zhang H, Tan P, Kong F. Removal of hexavalent chromium in dual-chamber microbial fuel cells separated by different ion exchange membranes. JOURNAL OF HAZARDOUS MATERIALS 2020; 384:121459. [PMID: 31732350 DOI: 10.1016/j.jhazmat.2019.121459] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 09/29/2019] [Accepted: 10/10/2019] [Indexed: 05/17/2023]
Abstract
An ion exchange membrane (IEM) is an important component in dual-chamber microbial fuel cells (MFCs) to separate cathodic chromium from anode bacteria to avoid toxicity. Common used IEMs (e.g., BPM, CEM, PEM, AEM) have different ionic transfer abilities which could influence MFC performance and chromium removal. Additionally, to distinguish chromium "removal" or "reduction" by MFCs, the chromium removal in this study was further analyzed into cathodic reduction, adsorption on the membrane and permeation through membrane to the anode chamber. It was found that BPM achieved the best performance in removing hexavalent chromium (99.4 ± 0.2 %) and balancing pH and conductivity in both chambers, followed by AEM (97.9 ± 0.8 %) and CEM (95.6 ± 0.8 %), while PEM can not well maintain pH and conductivity leading to the worst anode performance and lowest chromium removal efficiency. However, the adsorption of chromium on the AEM accounts for 91.1 ± 0.7 %, which was much higher than the other three membranes. The permeation of chromium through the membrane were all lower than 0.2% which can be ignored. SEM and EDS results showed that chromium deposits and bacteria were detected on the membrane facing cahtode and anode, respectively, indicating that membrane scaling and fouling were inevitable and happened within 24 h operation.
Collapse
Affiliation(s)
- Heming Wang
- State Key Laboratory of Heavy Oil Processing, Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing, 102249, China; College of Chemical Engineering and Environment, China University of Petroleum, Beijing, 102249, China.
| | - Xueyong Song
- College of Chemical Engineering and Environment, China University of Petroleum, Beijing, 102249, China
| | - Huihui Zhang
- College of Chemical Engineering and Environment, China University of Petroleum, Beijing, 102249, China
| | - Pan Tan
- College of Chemical Engineering and Environment, China University of Petroleum, Beijing, 102249, China
| | - Fanxin Kong
- State Key Laboratory of Heavy Oil Processing, Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing, 102249, China; College of Chemical Engineering and Environment, China University of Petroleum, Beijing, 102249, China
| |
Collapse
|
17
|
Wu X, Li C, Lv Z, Zhou X, Chen Z, Jia H, Zhou J, Yong X, Wei P, Li Y. Positive effects of concomitant heavy metals and their reduzates on hexavalent chromium removal in microbial fuel cells. RSC Adv 2020; 10:15107-15115. [PMID: 35495465 PMCID: PMC9052389 DOI: 10.1039/d0ra01471k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 04/05/2020] [Indexed: 11/21/2022] Open
Abstract
The cooperative cathode modification by BioAu from Au(iii) and in situ Cu(ii) co-reduction enhanced Cr(vi) removal and bioelectricity generation in MFCs.
Collapse
Affiliation(s)
- Xiayuan Wu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Chunrui Li
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Zuopeng Lv
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou 221116
- China
| | - Xiaowei Zhou
- Department of Philosophy
- Nanjing University
- Nanjing 210023
- China
| | - Zixuan Chen
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Honghua Jia
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Jun Zhou
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Xiaoyu Yong
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Ping Wei
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Yan Li
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| |
Collapse
|
18
|
Xiong Y, Chen J, Duan M, Li X, Li J, Zhang C, Fang S, Liu R, Zhang R. Insight into the Adsorption-Interaction Mechanism of Cr(VI) at the Silica Adsorbent Surface by Evanescent Wave Measurement. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:14414-14427. [PMID: 31607126 DOI: 10.1021/acs.langmuir.9b01556] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The investigation of adsorption performance at the adsorbent surface can help to reveal the treatment mechanism and improve the treatment efficiency of adsorption technology for heavy metal ions (HMIs). This work developed a methodology to investigate the adsorption behavior of HMI Cr(VI) at the silica surface by confined near-field evanescent wave (CNFEW) measurement. A silica optical fiber (SOF) was used as the adsorption substrate and light waveguide element to integrate both Cr(VI) adsorption and CNFEW production on its surface. According to the sensitive CNFEW response, the adsorption behavior of Cr(VI) was in situ monitored and real-time evaluated. The thermodynamic information of adsorption equilibrium constant (Kads) and adsorption free energy (ΔG) and dynamic information of the apparent adsorption rate (vads) and adsorption time (tads) were obtained through Langmuir isotherm and kinetic fitting, respectively. Different reaction performances between Cr(VI) and adsorption sites were successfully differentiated, evaluated, and characterized. A site-decided-mechanism was therefore presented to describe the surface interaction process for Cr(VI), which including fast adsorption on type I Si-O- site through electrostatic attraction with [Formula: see text] and slow adsorption on type II Si-OH site through coordinative interaction with ΔGSiOH-Cr(VI)II = -26.18 kJ mol-1. The adsorption mechanism of Cr(VI) at the SOF silica surface was furthermore verified by zeta potential analysis, Fourier transform infrared investigation, and fluorescence imaging. Unlike conventional ex situ or in bulk detection, the present CNFEW-based approach targets the "localized" adsorption of Cr(VI) adsorbed to the solid adsorbent surface. Consequently, our work favorably constructs a surface platform and provides new insights on understanding the adsorption mechanism for HMIs.
Collapse
Affiliation(s)
- Yan Xiong
- School of Chemistry and Chemical Engineering , Southwest Petroleum University , Chengdu 610500 , China
- Compiègne University of Technology, CNRS Institute for Enzyme and Cell Engineering , Rue Roger Couttolenc, CS 60319 , Compiègne Cedex 60203 , France
| | - Jie Chen
- School of Chemistry and Chemical Engineering , Southwest Petroleum University , Chengdu 610500 , China
| | - Ming Duan
- School of Chemistry and Chemical Engineering , Southwest Petroleum University , Chengdu 610500 , China
| | - Xiang Li
- School of Chemistry and Chemical Engineering , Southwest Petroleum University , Chengdu 610500 , China
| | - Jun Li
- School of Chemistry and Chemical Engineering , Southwest Petroleum University , Chengdu 610500 , China
| | - Can Zhang
- School of Chemistry and Chemical Engineering , Southwest Petroleum University , Chengdu 610500 , China
| | - Shenwen Fang
- School of Chemistry and Chemical Engineering , Southwest Petroleum University , Chengdu 610500 , China
| | - Rui Liu
- School of Chemistry and Chemical Engineering , Southwest Petroleum University , Chengdu 610500 , China
| | - Run Zhang
- Australian Institute for Bioengineering and Nanotechnology, AIBN , The University of Queensland , St Lucia , Queensland 4072 , Australia
| |
Collapse
|
19
|
Abstract
Chromium is one of the most frequently used metal contaminants. Its hexavalent form Cr(VI), which is exploited in many industrial activities, is highly toxic, is water-soluble in the full pH range, and is a major threat to groundwater resources. Alongside traditional approaches to Cr(VI) treatment based on physical-chemical methods, technologies exploiting the ability of several microorganisms to reduce toxic and mobile Cr(VI) to the less toxic and stable Cr(III) form have been developed to improve the cost-effectiveness and sustainability of remediating hexavalent chromium-contaminated groundwater. Bioelectrochemical systems (BESs), principally investigated for wastewater treatment, may represent an innovative option for groundwater remediation. By using electrodes as virtually inexhaustible electron donors and acceptors to promote microbial oxidation-reduction reactions, in in situ remediation, BESs may offer the advantage of limited energy and chemicals requirements in comparison to other bioremediation technologies, which rely on external supplies of limiting inorganic nutrients and electron acceptors or donors to ensure proper conditions for microbial activity. Electron transfer is continuously promoted/controlled in terms of current or voltage application between the electrodes, close to which electrochemically active microorganisms are located. Therefore, this enhances the options of process real-time monitoring and control, which are often limited in in situ treatment schemes. This paper reviews research with BESs for treating chromium-contaminated wastewater, by focusing on the perspectives for Cr(VI) bioelectrochemical remediation and open research issues.
Collapse
|
20
|
Performance of microbial fuel cells based on the operational parameters of biocathode during simultaneous Congo red decolorization and electricity generation. Bioelectrochemistry 2019; 128:291-297. [DOI: 10.1016/j.bioelechem.2019.04.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/25/2019] [Accepted: 04/25/2019] [Indexed: 11/20/2022]
|
21
|
Cheng C, Hu Y, Shao S, Yu J, Zhou W, Cheng J, Chen Y, Chen S, Chen J, Zhang L. Simultaneous Cr(VI) reduction and electricity generation in Plant-Sediment Microbial Fuel Cells (P-SMFCs): Synthesis of non-bonding Co 3O 4 nanowires onto cathodes. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 247:647-657. [PMID: 30711820 DOI: 10.1016/j.envpol.2019.01.084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 01/18/2019] [Accepted: 01/19/2019] [Indexed: 06/09/2023]
Abstract
Development of low-cost cathode materials for Plant-Sediment Microbial Fuel Cells (P-SMFCs) has gained increasing interest, due to improved performance levels in terms of power and pollutant removal. A novel low cost three-dimensional cathode prepared by simple three-step strategy with growth of Co3O4 in-situ biofilm was successfully prepared. Different cathodes were applied to the six parallel P-SMFCs systems (reactor: R1-R6), such as graphite felt (GF), Pt/C, GF@Co3O4 (non-bonding Co3O4 nanowires on GF), GF@SG-Co3O4 (using argon as shielding gas (SG)). Its performances (R1, R2: control groups) were evaluated by electricity generation and Cr(VI) reduction at initial cadmium concentrations (4.97, 10.29 and 21.16 mg L-1). A significant Cr(VI) removal efficiency of 99.76%, maximum power density of 75.12 ± 2.90 mW m-2 and Cr(VI) adsorption capacity of 1.67 mg g-1 were obtained at initial Cr(VI) concentration of 21.16 mg L-1 with non-bonding GF@Co3O4 and bio-GF@SG-Co3O4 as cathodes. This indicated that these two materials were better than others (GF, Pt/C and GF@Co3O4) as cathodes. Characterization analysis including scanning electron microscope (SEM), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), Polarization curve, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) showed that high current generation Cr(VI) removal mainly attributed to transportation of plants, adsorption of bio-cathode, formation of a relatively high concentration region and abundant oxygen vacancies of GF@SG-Co3O4. The results show that P-SMFCs with GF@SG-Co3O4 cathode may be a potentially novel approach for remediating Cr(VI) contaminated waster or soil.
Collapse
Affiliation(s)
- Ce Cheng
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
| | - Yongyou Hu
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China.
| | - Sicheng Shao
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China.
| | - Jiayuan Yu
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
| | - Weijia Zhou
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
| | - Jianhua Cheng
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
| | - Yuancai Chen
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
| | - Shengnan Chen
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
| | - Junfeng Chen
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
| | - Lihua Zhang
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
| |
Collapse
|
22
|
Mukherjee P, Saravanan P. Perspective View on Materialistic, Mechanistic and Operating Challenges of Microbial Fuel Cell on Commercialisation and Their Way Ahead. ChemistrySelect 2019. [DOI: 10.1002/slct.201802694] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Priya Mukherjee
- Environmental Nanotechnology LaboratoryDepartment of Environmental Science and EngineeringIndian Institute of Technology [ISM], Dhanbad Dhanbad- 826004 Jharkhand India
| | - Pichiah Saravanan
- Environmental Nanotechnology LaboratoryDepartment of Environmental Science and EngineeringIndian Institute of Technology [ISM], Dhanbad Dhanbad- 826004 Jharkhand India
| |
Collapse
|
23
|
Wu X, Xiong X, Owens G, Brunetti G, Zhou J, Yong X, Xie X, Zhang L, Wei P, Jia H. Anode modification by biogenic gold nanoparticles for the improved performance of microbial fuel cells and microbial community shift. BIORESOURCE TECHNOLOGY 2018; 270:11-19. [PMID: 30199701 DOI: 10.1016/j.biortech.2018.08.092] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 08/19/2018] [Accepted: 08/20/2018] [Indexed: 06/08/2023]
Abstract
In this study, carbon cloth anodes were modified using biogenic gold nanoparticles (BioAu) and nanohybrids of multi-walled carbon nanotubes blended with BioAu (BioAu/MWCNT) to improve the performance of microbial fuel cells (MFCs). The results demonstrated that BioAu modification significantly enhanced the electricity generation of MFCs. In particular, BioAu/MWCNT nanohybrids as the modifier displayed a better performance. The MFC with the BioAu/MWCNT electrode had the shortest start-up time (6.74 d) and highest power density (178.34 ± 4.79 mW/m2), which were 141.69% shorter and 56.11% higher compared with those of the unmodified control, respectively. These improvements were attributed to the excellent electrocatalytic activity and strong affinity towards exoelectrogens of the BioAu/MWCNT nanohybrids on the electrode. High throughput sequencing analysis indicated that the relative abundance of electroactive bacteria in the biofilm community, mostly from the classes of Gammaproteobacteria and Negativicutes, increased after anode modification.
Collapse
Affiliation(s)
- Xiayuan Wu
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xiaomin Xiong
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Gary Owens
- Environmental Contaminants Group, Future Industries Institute, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Gianluca Brunetti
- Environmental Contaminants Group, Future Industries Institute, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Jun Zhou
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xiaoyu Yong
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xinxin Xie
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Lijuan Zhang
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Ping Wei
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Honghua Jia
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China.
| |
Collapse
|
24
|
Wu X, Ren X, Owens G, Brunetti G, Zhou J, Yong X, Wei P, Jia H. A Facultative Electroactive Chromium(VI)-Reducing Bacterium Aerobically Isolated From a Biocathode Microbial Fuel Cell. Front Microbiol 2018; 9:2883. [PMID: 30534122 PMCID: PMC6275177 DOI: 10.3389/fmicb.2018.02883] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 11/12/2018] [Indexed: 11/16/2022] Open
Abstract
A facultative electroactive bacterium, designated strain H, was aerobically isolated from the biocathode of a hexavalent chromium (Cr(VI))-reducing microbial fuel cell (MFC). Strain H is Gram-positive and rod shaped (1–3 μm length). 16S rRNA gene analysis suggested that this strain (accession number MH782060) belongs to the genus Bacillus and shows maximum similarity to Bacillus cereus whose electrochemical activity has never previously been reported. Moreover, this strain showed efficient Cr(VI)-reducing ability in both heterotrophic (aerobic LB broth) and autotrophic (anaerobic MFC cathode) environments. Cr(VI) removal reached 50.6 ± 1.8% after 20 h in LB broth supplemented with Cr(VI) (40 mg/L). The strain H biocathode significantly improved the performance of the Cr(VI)-reducing MFC, achieving a maximum power density of 31.80 ± 1.06 mW/m2 and Cr(VI) removal rate of 2.56 ± 0.10 mg/L–h, which were 1.26 and 1.75 times higher than those of the MFC with the sterile control cathode, respectively. This study offers a novel Gram-positive Bacillus sp. strain for Cr(VI) removal in MFCs, and shows a facile aerobic isolation method could be used to screen facultative electroactive bacteria.
Collapse
Affiliation(s)
- Xiayuan Wu
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Xiaoqian Ren
- College of Chemical Engineering, Nanjing Tech University, Nanjing, China
| | - Gary Owens
- Environmental Contaminants Group, Future Industries Institute, University of South Australia, Adelaide, SA, Australia
| | - Gianluca Brunetti
- Environmental Contaminants Group, Future Industries Institute, University of South Australia, Adelaide, SA, Australia
| | - Jun Zhou
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Xiaoyu Yong
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Ping Wei
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Honghua Jia
- Bioenergy Research Institute, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| |
Collapse
|
25
|
Katuri KP, Kalathil S, Ragab A, Bian B, Alqahtani MF, Pant D, Saikaly PE. Dual-Function Electrocatalytic and Macroporous Hollow-Fiber Cathode for Converting Waste Streams to Valuable Resources Using Microbial Electrochemical Systems. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1707072. [PMID: 29707854 DOI: 10.1002/adma.201707072] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Indexed: 06/08/2023]
Abstract
Dual-function electrocatalytic and macroporous hollow-fiber cathodes are recently proposed as promising advanced material for maximizing the conversion of waste streams such as wastewater and waste CO2 to valuable resources (e.g., clean freshwater, energy, value-added chemicals) in microbial electrochemical systems. The first part of this progress report reviews recent developments in this type of cathode architecture for the simultaneous recovery of clean freshwater and energy from wastewater. Critical insights are provided on suitable materials for fabricating these cathodes, as well as addressing some challenges in the fabrication process with proposed strategies to overcome them. The second and complementary part of the progress report highlights how the unique features of this cathode architecture can solve one of the intrinsic bottlenecks (gas-liquid mass transfer limitation) in the application of microbial electrochemical systems for CO2 reduction to value-added products. Strategies to further improve the availability of CO2 to microbial catalysts on the cathode are proposed. The importance of understanding microbe-cathode interactions, as well as electron transfer mechanisms at the cathode-cell and cell-cell interface to better design dual-function macroporous hollow-fiber cathodes, is critically discussed with insights on how the choice of material is important in facilitating direct electron transfer versus mediated electron transfer.
Collapse
Affiliation(s)
- Krishna P Katuri
- Biological and Environmental Sciences and Engineering (BESE) Division, Water Desalination and Reuse Center (WDRC), King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Shafeer Kalathil
- Biological and Environmental Sciences and Engineering (BESE) Division, Water Desalination and Reuse Center (WDRC), King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Ala'a Ragab
- Biological and Environmental Sciences and Engineering (BESE) Division, Water Desalination and Reuse Center (WDRC), King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Bin Bian
- Biological and Environmental Sciences and Engineering (BESE) Division, Water Desalination and Reuse Center (WDRC), King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Manal F Alqahtani
- Biological and Environmental Sciences and Engineering (BESE) Division, Water Desalination and Reuse Center (WDRC), King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Deepak Pant
- Separation and Conversion Technology, Flemish Institute for Technological Research (VITO), Boeretang 200, Mol, 2400, Belgium
| | - Pascal E Saikaly
- Biological and Environmental Sciences and Engineering (BESE) Division, Water Desalination and Reuse Center (WDRC), King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| |
Collapse
|
26
|
Chen Y, Cong S, Wang Q, Han H, Lu J, Kang Y, Kang W, Wang H, Han S, Song H, Zhang J. Optimization of crystal growth of sub-micron ZSM-5 zeolite prepared by using Al(OH) 3 extracted from fly ash as an aluminum source. JOURNAL OF HAZARDOUS MATERIALS 2018; 349:18-26. [PMID: 29414748 DOI: 10.1016/j.jhazmat.2018.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 12/29/2017] [Accepted: 01/03/2018] [Indexed: 06/08/2023]
Abstract
A novel approach was proposed to prepare ZSM-5 zeolite via hydrothermal synthesis by using Al(OH)3, which was extracted from fly ash by a staged treatment, as an aluminum source. The synthesis parameters and crystal growth of ZSM-5 were optimized. The optimization of crystal growth for ZSM-5 was investigated under the effect of organic steric-hindrance agents. The crystal phase and morphology of the ZSM-5 were characterized by X-ray diffractometry and scanning electron microscopy, and the particle size distribution was measured by laser particle-size analyzer. The crystal growth of ZSM-5 under different hydrothermal conditions obeyed the "S" regulation. According to the analysis, the formation of ZSM-5 crystal occurred via four steps: (1) the formation of amorphous aluminosilicate by the condensation of silicate ions and aluminate ions; (2) the particle growth and aggregation of the amorphous aluminosilicate; (3) crystallization and crystal growth of ZSM-5; (4) Gentle growth after the zeolite crystal reaches a certain size. The addition of organic steric hindrance agents resulted in a decrease in grain size and crystal-particle formation with a narrow size distribution. Single-grain dispersion resulted and the micropore volume, mesopore volume, and specific surface areas were improved by the presence of organic steric agents.
Collapse
Affiliation(s)
- Yanguang Chen
- College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, 163318, China; Provincial Key Laboratory of Oil & Gas Chemical Technology, Northeast Petroleum University, Daqing, 163318, China.
| | - Shuli Cong
- College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, 163318, China; Provincial Key Laboratory of Oil & Gas Chemical Technology, Northeast Petroleum University, Daqing, 163318, China
| | - Qiqi Wang
- College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, 163318, China; Provincial Key Laboratory of Oil & Gas Chemical Technology, Northeast Petroleum University, Daqing, 163318, China
| | - Hongjing Han
- College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, 163318, China; Provincial Key Laboratory of Oil & Gas Chemical Technology, Northeast Petroleum University, Daqing, 163318, China
| | - Jia Lu
- Energy & Environmental Research Institute of Heilongjiang Province, Harbin, 150027, China
| | - Yue Kang
- College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, 163318, China; Provincial Key Laboratory of Oil & Gas Chemical Technology, Northeast Petroleum University, Daqing, 163318, China
| | - Wei Kang
- College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, 163318, China; Provincial Key Laboratory of Oil & Gas Chemical Technology, Northeast Petroleum University, Daqing, 163318, China
| | - Haiying Wang
- College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, 163318, China; Provincial Key Laboratory of Oil & Gas Chemical Technology, Northeast Petroleum University, Daqing, 163318, China
| | - Shuyu Han
- College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, 163318, China; Provincial Key Laboratory of Oil & Gas Chemical Technology, Northeast Petroleum University, Daqing, 163318, China
| | - Hua Song
- College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, 163318, China; Provincial Key Laboratory of Oil & Gas Chemical Technology, Northeast Petroleum University, Daqing, 163318, China
| | - Jiaojing Zhang
- College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, 163318, China; Provincial Key Laboratory of Oil & Gas Chemical Technology, Northeast Petroleum University, Daqing, 163318, China
| |
Collapse
|
27
|
Synthesis of magnetic biochar from iron sludge for the enhancement of Cr (VI) removal from solution. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.07.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
28
|
Fei K, Song TS, Wang H, Zhang D, Tao R, Xie J. Electrophoretic deposition of carbon nanotube on reticulated vitreous carbon for hexavalent chromium removal in a biocathode microbial fuel cell. ROYAL SOCIETY OPEN SCIENCE 2017; 4:170798. [PMID: 29134084 PMCID: PMC5666267 DOI: 10.1098/rsos.170798] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 09/27/2017] [Indexed: 05/16/2023]
Abstract
For Cr(VI)-removal microbial fuel cell (MFC), a more efficient biocathode in MFCs is required to improve the Cr(VI) removal and electricity generation. RVC-CNT electrode was prepared through the electrophoretic deposition of carbon nanotube (CNT) on reticulated vitreous carbon (RVC). The power density of MFC with an RVC-CNT electrode increased to 132.1 ± 2.8 mW m-2, and 80.9% removal of Cr(VI) was achieved within 48 h; compared to only 44.5% removal of Cr(VI) in unmodified RVC. Cyclic voltammetry, energy-dispersive spectrometry and X-ray photoelectron spectrometry showed that the RVC-CNT electrode enhanced the electrical conductivity and the electron transfer rate; and provided more reaction sites for Cr(VI) reduction. This approach provides process simplicity and a thickness control method for fabricating three-dimensional biocathodes to improve the performance of MFCs for Cr(VI) removal.
Collapse
Affiliation(s)
- Kangqing Fei
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China
- College of Life Science and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China
| | - Tian-shun Song
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China
- College of Life Science and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China
- Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, People's Republic of China
- Authors for correspondence: Tian-shun Song e-mail:
| | - Haoqi Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China
- College of Life Science and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China
| | - Dalu Zhang
- International Cooperation Division, China National Center for Biotechnology Development, Beijing 100039, People's Republic of China
| | - Ran Tao
- Nanjing Foreign Language School, Nanjing 210018, People's Republic of China
| | - Jingjing Xie
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China
- College of Life Science and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China
- Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, People's Republic of China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing 211816, People's Republic of China
- Authors for correspondence: Jingjing Xie e-mail:
| |
Collapse
|
29
|
Ucar D, Zhang Y, Angelidaki I. An Overview of Electron Acceptors in Microbial Fuel Cells. Front Microbiol 2017; 8:643. [PMID: 28469607 PMCID: PMC5395574 DOI: 10.3389/fmicb.2017.00643] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 03/29/2017] [Indexed: 11/29/2022] Open
Abstract
Microbial fuel cells (MFC) have recently received increasing attention due to their promising potential in sustainable wastewater treatment and contaminant removal. In general, contaminants can be removed either as an electron donor via microbial catalyzed oxidization at the anode or removed at the cathode as electron acceptors through reduction. Some contaminants can also function as electron mediators at the anode or cathode. While previous studies have done a thorough assessment of electron donors, cathodic electron acceptors and mediators have not been as well described. Oxygen is widely used as an electron acceptor due to its high oxidation potential and ready availability. Recent studies, however, have begun to assess the use of different electron acceptors because of the (1) diversity of redox potential, (2) needs of alternative and more efficient cathode reaction, and (3) expanding of MFC based technologies in different areas. The aim of this review was to evaluate the performance and applicability of various electron acceptors and mediators used in MFCs. This review also evaluated the corresponding performance, advantages and disadvantages, and future potential applications of select electron acceptors (e.g., nitrate, iron, copper, perchlorate) and mediators.
Collapse
Affiliation(s)
- Deniz Ucar
- Department of Environmental Engineering, Harran UniversitySanliurfa, Turkey.,GAP Renewable Energy and Energy Efficiency Center, Harran UniversitySanliurfa, Turkey
| | - Yifeng Zhang
- Department of Environmental Engineering, Technical University of DenmarkLyngby, Denmark
| | - Irini Angelidaki
- Department of Environmental Engineering, Technical University of DenmarkLyngby, Denmark
| |
Collapse
|
30
|
Hałas P, Kołodyńska D, Płaza A, Gęca M, Hubicki Z. Modified fly ash and zeolites as an effective adsorbent for metal ions from aqueous solution. ADSORPT SCI TECHNOL 2017. [DOI: 10.1177/0263617417700420] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
31
|
Wu X, Xiong X, Brunetti G, Yong X, Zhou J, Zhang L, Wei P, Jia H. Effect of MWCNT-modified graphite felts on hexavalent chromium removal in biocathode microbial fuel cells. RSC Adv 2017. [DOI: 10.1039/c7ra11696a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Oxidized MWCNT-modified graphite felt significantly improved Cr(vi) removal in biocathode MFCs due to its affinity towards microbes and Cr(vi).
Collapse
Affiliation(s)
- Xiayuan Wu
- Bioenergy Research Institute
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Xiaomin Xiong
- Bioenergy Research Institute
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Gianluca Brunetti
- Future Industries Institute
- School of Natural and Built Environments
- University of South Australia
- Adelaide
- Australia
| | - Xiaoyu Yong
- Bioenergy Research Institute
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Jun Zhou
- Bioenergy Research Institute
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Lijuan Zhang
- Bioenergy Research Institute
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Ping Wei
- Bioenergy Research Institute
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Honghua Jia
- Bioenergy Research Institute
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| |
Collapse
|