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Mahto KU, Das S. Electroactive biofilm communities in microbial fuel cells for the synergistic treatment of wastewater and bioelectricity generation. Crit Rev Biotechnol 2024:1-20. [PMID: 39009474 DOI: 10.1080/07388551.2024.2372070] [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: 09/29/2022] [Accepted: 06/09/2024] [Indexed: 07/17/2024]
Abstract
Increasing industrialization and urbanization have contributed to a significant rise in wastewater discharge and exerted extensive pressure on the existing natural energy resources. Microbial fuel cell (MFC) is a sustainable technology that utilizes wastewater for electricity generation. MFC comprises a bioelectrochemical system employing electroactive biofilms of several aerobic and anaerobic bacteria, such as Geobacter sulfurreducens, Shewanella oneidensis, Pseudomonas aeruginosa, and Ochrobacterum pseudiintermedium. Since the electroactive biofilms constitute a vital part of the MFC, it is crucial to understand the biofilm-mediated pollutant metabolism and electron transfer mechanisms. Engineering electroactive biofilm communities for improved biofilm formation and extracellular polymeric substances (EPS) secretion can positively impact the bioelectrochemical system and improve fuel cell performance. This review article summarizes the role of electroactive bacterial communities in MFC for wastewater treatment and bioelectricity generation. A significant focus has been laid on understanding the composition, structure, and function of electroactive biofilms in MFC. Various electron transport mechanisms, including direct electron transfer (DET), indirect electron transfer (IET), and long-distance electron transfer (LDET), have been discussed. A detailed summary of the optimization of process parameters and genetic engineering strategies for improving the performance of MFC has been provided. Lastly, the applications of MFC for wastewater treatment, bioelectricity generation, and biosensor development have been reviewed.
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Affiliation(s)
- Kumari Uma Mahto
- Laboratory of Environmental Microbiology and Ecology (LEnME), Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Surajit Das
- Laboratory of Environmental Microbiology and Ecology (LEnME), Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
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2
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Ding J, Guo Y, Tang M, Zhou S. Effects of exogenous riboflavin or cytochrome addition on the cathodic reduction of Cr(VI) in microbial fuel cell with Shewanella putrefaciens. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:29185-29198. [PMID: 38568314 DOI: 10.1007/s11356-024-33118-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 03/24/2024] [Indexed: 05/01/2024]
Abstract
Bioreduction of Cr(VI) is recognized as a cost-effective and environmentally friendly method, attracting widespread interest. However, the slow rate of Cr(VI) bioreduction remains a practical challenge. Additionally, the direct removal efficiency of microbes for high concentrations of Cr(VI) is not ideal due to the toxicity. Therefore, this study investigated the effects of exogenous riboflavin or cytochrome on the cathodic reduction of Cr(VI) in microbial fuel cells. The results demonstrated that the exogenous riboflavin or cytochrome effectively improved the voltage output of the cells, with riboflavin increasing the voltage by 52.08%. Within the first 24 h, the Cr(VI) removal ratio in the normal, cytochrome, and riboflavin groups was 14.3%, 29.3%, and 53.8%, respectively. And the final removal ratio was 55.1%, 69.1%, and 98.0%, respectively. These results showed different enhancement effects of riboflavin and cytochrome on Cr(VI) removal. The analysis of riboflavin and cytochrome contents revealed that the additions did not have a significant impact on the autocrine riboflavin of S. putrefaciens, but affected the autocrine cytochrome. SEM, XPS, and FTIR results confirmed the presence of reduced Cr(III) on the cathode, which formed precipitate and adhered to the cathode surface. The EDS analysis showed that the amount of Cr on the cathode in normal, cytochrome, and riboflavin groups was 4.71%, 6.37%, 7.56%, respectively, which was consistent with the voltage and Cr(VI) removal data. These findings demonstrated the significant enhancement of exogenous riboflavin or cytochrome on Cr(VI) reduction, thereby providing data reference for the future bio-assisted remediation of Cr(VI) pollution.
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Affiliation(s)
- Jing Ding
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China.
| | - Yonglei Guo
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Mingfang Tang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Sijia Zhou
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
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3
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Wang Q, Zhang C, Zhao X, Wang Y, Li Z, Zhou Y, Ren G. Algae-Bacteria cooperated microbial ecosystem: A self-circulating semiartificial photosynthetic purifying strategy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167187. [PMID: 37748602 DOI: 10.1016/j.scitotenv.2023.167187] [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: 08/02/2023] [Revised: 09/16/2023] [Accepted: 09/16/2023] [Indexed: 09/27/2023]
Abstract
The microbial fuel cell (MFC) is a promising bio-electrochemical technology that enables simultaneous electricity generation and effluent purification. Harnessing solar energy to provide sustainable power for MFC operation holds great potential. In this study, a semiartificial photosynthetic self-circulating MFC ecosystem is successfully established through the collaboration of electrogenic microorganisms and photosynthetic algae. The ecosystem can operate continuously without carbon sources and produces a voltage of 150 mV under irradiation. The irradiation doubles the maximum power density of the ecosystem, reaching 8.07 W/m2 compared to dark conditions. The results of cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) suggest a higher diffusion capacity or faster electron replenishment ability within the ecosystem. Furthermore, the capacity of ecosystem for removing chromium (Cr(VI)) has been investigated comprehensively. Under irradiation, the ecosystem demonstrates a 2.25-fold increase in Cr(VI) removal rate compared to dark conditions. Finally, the results of 16S rRNA amplicon sequencing indicates an increase in the relative abundance of strict and facultative aerobic electroactive bacteria in the ecosystem, including Citrobacter (21 %), Bacillus (15 %) and Enterococcus (6 %). The ecosystem offers a novel, self-sustaining approach to address the challenges of energy recovery and environmental pollution.
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Affiliation(s)
- Qijun Wang
- The Key Laboratory of Mineral Resources in Western China (Gansu Province), School of Earth Sciences, Lanzhou University, The Key Laboratory of Strategic Mineral Resources of the Upper Yellow River, Ministry of Natural Resources, Lanzhou 730000, PR China
| | - Chengbin Zhang
- The Key Laboratory of Mineral Resources in Western China (Gansu Province), School of Earth Sciences, Lanzhou University, The Key Laboratory of Strategic Mineral Resources of the Upper Yellow River, Ministry of Natural Resources, Lanzhou 730000, PR China
| | - Xu Zhao
- The Key Laboratory of Mineral Resources in Western China (Gansu Province), School of Earth Sciences, Lanzhou University, The Key Laboratory of Strategic Mineral Resources of the Upper Yellow River, Ministry of Natural Resources, Lanzhou 730000, PR China
| | - Ye Wang
- The Key Laboratory of Mineral Resources in Western China (Gansu Province), School of Earth Sciences, Lanzhou University, The Key Laboratory of Strategic Mineral Resources of the Upper Yellow River, Ministry of Natural Resources, Lanzhou 730000, PR China
| | - Zitong Li
- The Key Laboratory of Mineral Resources in Western China (Gansu Province), School of Earth Sciences, Lanzhou University, The Key Laboratory of Strategic Mineral Resources of the Upper Yellow River, Ministry of Natural Resources, Lanzhou 730000, PR China
| | - Yunzhu Zhou
- The Key Laboratory of Mineral Resources in Western China (Gansu Province), School of Earth Sciences, Lanzhou University, The Key Laboratory of Strategic Mineral Resources of the Upper Yellow River, Ministry of Natural Resources, Lanzhou 730000, PR China
| | - Guiping Ren
- The Key Laboratory of Mineral Resources in Western China (Gansu Province), School of Earth Sciences, Lanzhou University, The Key Laboratory of Strategic Mineral Resources of the Upper Yellow River, Ministry of Natural Resources, Lanzhou 730000, PR China.
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Kieu TQH, Nguyen TY, Do CL. Treatment of Organic and Sulfate/Sulfide Contaminated Wastewater and Bioelectricity Generation by Sulfate-Reducing Bioreactor Coupling with Sulfide-Oxidizing Fuel Cell. Molecules 2023; 28:6197. [PMID: 37687026 PMCID: PMC10488401 DOI: 10.3390/molecules28176197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 08/19/2023] [Accepted: 08/19/2023] [Indexed: 09/10/2023] Open
Abstract
A wastewater treatment system has been established based on sulfate-reducing and sulfide-oxidizing processes for treating organic wastewater containing high sulfate/sulfide. The influence of COD/SO42- ratio and hydraulic retention time (HRT) on removal efficiencies of sulfate, COD, sulfide and electricity generation was investigated. The continuous operation of the treatment system was carried out for 63 days with the optimum COD/SO42- ratio and HRT. The result showed that the COD and sulfate removal efficiencies were stable, reaching 94.8 ± 0.6 and 93.0 ± 1.3% during the operation. A power density level of 18.0 ± 1.6 mW/m2 was obtained with a sulfide removal efficiency of 93.0 ± 1.2%. However, the sulfide removal efficiency and power density decreased gradually after 45 days. The results from scanning electron microscopy (SEM) with an energy dispersive X-ray (EDX) show that sulfur accumulated on the anode, which could explain the decline in sulfide oxidation and electricity generation. This study provides a promising treatment system to scale up for its actual applications in this type of wastewater.
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Affiliation(s)
- Thi Quynh Hoa Kieu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
- Faculty of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Str., Cau Giay, Hanoi 100000, Vietnam
| | - Thi Yen Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Chi Linh Do
- Institute of Material Sciences, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
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5
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Yang H, Chen J, Yu L, Li W, Huang X, Qin Q, Zhu S. Performance optimization and microbial community evaluation for domestic wastewater treatment in a constructed wetland-microbial fuel cell. ENVIRONMENTAL RESEARCH 2022; 212:113249. [PMID: 35421392 DOI: 10.1016/j.envres.2022.113249] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 03/17/2022] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
Constructed wetland-microbial fuel cell system (CW-MFC), an attractive technology still under study, has shown to improve domestic wastewater treatment efficiency and generate bioelectricity. This work investigated the effect of multiple factors on the performance optimization for the pollutants removal and bioelectricity production compared to a traditional CW, including influent chemical oxygen demand (COD) concentration, hydraulic retention time (HRT) and external resistance. The results showed that the optimal operating conditions of COD concentration, HRT and external resistance for CW-MFC were 200 mg/L, 24 h and 1000 Ω, respectively. The average COD, NH4+-N, NO3--N and TP removal efficiencies were 6.06%, 3.85%, 3.68% and 3.68% higher than these in CW system, respectively. Meanwhile, the maximum output voltage and power density of CW-MFC were 388 ± 12 mV and 107.54 mW/m3. In addition, the microbial community analysis indicated that the pollution removal and bioelectricity generation might benefit from the gradual enrichment of electroactive bacteria (Tolumonas) and denitrifying bacteria (Denitratisoma, Methylotenera and Sulfuritales). The findings can provide the optimum operation parameters and mechanism insight for the performance of CW-MFC systems.
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Affiliation(s)
- Houyun Yang
- Key Laboratory of Water Pollution Control and Wastewater Reuse of Anhui Province, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei, China.
| | - Jian Chen
- Key Laboratory of Water Pollution Control and Wastewater Reuse of Anhui Province, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei, China
| | - Li Yu
- Key Laboratory of Water Pollution Control and Wastewater Reuse of Anhui Province, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei, China
| | - Weihua Li
- Key Laboratory of Water Pollution Control and Wastewater Reuse of Anhui Province, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei, China
| | - Xianhuai Huang
- Key Laboratory of Water Pollution Control and Wastewater Reuse of Anhui Province, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei, China
| | - Qian Qin
- Key Laboratory of Water Pollution Control and Wastewater Reuse of Anhui Province, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei, China
| | - Shuguang Zhu
- Key Laboratory of Water Pollution Control and Wastewater Reuse of Anhui Province, Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei, China
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Hoang AT, Nižetić S, Ng KH, Papadopoulos AM, Le AT, Kumar S, Hadiyanto H, Pham VV. Microbial fuel cells for bioelectricity production from waste as sustainable prospect of future energy sector. CHEMOSPHERE 2022; 287:132285. [PMID: 34563769 DOI: 10.1016/j.chemosphere.2021.132285] [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: 06/29/2021] [Revised: 08/23/2021] [Accepted: 09/16/2021] [Indexed: 06/13/2023]
Abstract
Microbial fuel cell (MFC) is lauded for its potentials to solve both energy crisis and environmental pollution. Technologically, it offers the capability to harness electricity from the chemical energy stored in the organic substrate with no intermediate steps, thereby minimizes the entropic loss due to the inter-conversion of energy. The sciences underneath such MFCs include the electron and proton generation from the metabolic decomposition of the substrate by microbes at the anode, followed by the shuttling of these charges to cathode for electricity generation. While its promising prospects were mutually evinced in the past investigations, the upscaling of MFC in sustaining global energy demands and waste treatments is yet to be put into practice. In this context, the current review summarizes the important knowledge and applications of MFCs, concurrently identifies the technological bottlenecks that restricted its vast implementation. In addition, economic analysis was also performed to provide multiangle perspectives to readers. Succinctly, MFCs are mainly hindered by the slow metabolic kinetics, sluggish transfer of charged particles, and low economic competitiveness when compared to conventional technologies. From these hindering factors, insightful strategies for improved practicality of MFCs were formulated, with potential future research direction being identified too. With proper planning, we are delighted to see the industrialization of MFCs in the near future, which would benefit the entire human race with cleaner energy and the environment.
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Affiliation(s)
- Anh Tuan Hoang
- Institute of Engineering, Ho Chi Minh City University of Technology (HUTECH), Ho Chi Minh City, Viet Nam.
| | - Sandro Nižetić
- University of Split, FESB, Rudjera Boskovica 32, 21000, Split, Croatia
| | - Kim Hoong Ng
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City, 24301, Taiwan.
| | - Agis M Papadopoulos
- Process Equipment Design Laboratory, Department of Mechanical Engineering, Aristotle University of Thessaloniki, Postal Address: GR-54124, Thessaloniki, Greece
| | - Anh Tuan Le
- School of Transportation Engineering, Hanoi University of Science and Technology, Hanoi, Viet Nam.
| | - Sunil Kumar
- Waste Reprocessing Division, CSIR-National Environmental Engineering Research Institute, Nagpur, 440 020, India
| | - H Hadiyanto
- Center of Biomass and Renewable Energy (CBIORE), Department of Chemical Engineering, Diponegoro University, Jl. Prof. Soedarto SH, Tembalang, Semarang, 50271, Indonesia; School of Postgraduate Studies, Diponegoro University, Jl. Imam Bardjo, SH Semarang, 50241, Indonesia.
| | - Van Viet Pham
- PATET Research Group, Ho Chi Minh City University of Transport, Ho Chi Minh City, Viet Nam.
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7
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Zaman SA, Ghosh S. A generic input-output approach in developing and optimizing an Aspen plus steam-gasification model for biomass. BIORESOURCE TECHNOLOGY 2021; 337:125412. [PMID: 34166930 DOI: 10.1016/j.biortech.2021.125412] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/09/2021] [Accepted: 06/10/2021] [Indexed: 06/13/2023]
Abstract
Steam-gasification is drawing great interests as it yields higher H2 in syngas than any other gasification process. In this article, an equilibrium steam-gasification model developed in Aspen plus has been presented. The effect of the major input variables along with their synchronized effects on the response variables i.e., cold gas efficiency (CGE) and lower heating value (LHV) have been performed. Steam-gasification process optimization has been carried out employing response surface methodology (RSM) considering wide variety of biomass to get the best possible outcomes. The generic relations for both CGE and LHV as response variables have also been framed from obtained individual relations to estimate the response variables for considered biomass feeds at optimum operating conditions. The analysis reveals that the optimum response is obtained having almost 100% desirability (D) at the optimum operating condition (steam to biomass ratio of 0.7 and gasification temperature between 780 and 790 °C) of the steam-gasification model.
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Affiliation(s)
- Sk Arafat Zaman
- Department of Mechanical Engineering, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
| | - Sudip Ghosh
- Department of Mechanical Engineering, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India.
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8
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Zhang Z, Zhang K, Ouyang H, Li MKK, Luo Z, Li Y, Chen C, Yang X, Shao Z, Yan DYS. Simultaneous PAHs degradation, odour mitigation and energy harvesting by sediment microbial fuel cell coupled with nitrate-induced biostimulation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 284:112045. [PMID: 33567357 DOI: 10.1016/j.jenvman.2021.112045] [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: 08/13/2020] [Revised: 12/17/2020] [Accepted: 12/18/2020] [Indexed: 06/12/2023]
Abstract
The study investigates a bioremediation process of polycyclic aromatic hydrocarbons (PAHs) removal and odour mitigation combined with energy harvesting. Sediment microbial fuel cells (SMFCs) were constructed with the addition of nitrate in the sediment to simultaneously remove acid-volatile sulphide (AVS) and PAHs. With the combined nitrate-SMFC treatment, over 90% of the AVS was removed from the sediment in 6 weeks of the SMFC operation and a maximum of 94% of AVS removal efficiency was reached at Week 10. The highest removal efficiencies of phenanthrene, pyrene, and benzo[a]pyrene was 93%, 80%, and 69%, respectively. The maximum voltage attained for the combined nitrate-SMFC treatment was 341 mV. Illumina HiSeq sequencing revealed that the autotrophic denitrifiers Thiobacillus are the dominant genus. In electricity generation, both sulphide-oxidation and PAH-oxidation are the possible pathways. Besides, the addition of nitrate stimulated the growth of Pseudomonas which is responsible for the electricity generation and direct biodegradation of the PAHs, indicating a synergistic effect. The developed bioremediation process demonstrated the potential in the in-situ bioremediation process utilizing SMFC combined with nitrate-induced bioremediation.
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Affiliation(s)
- Zhen Zhang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Kun Zhang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China; College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - He Ouyang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Marcus K K Li
- Faculty of Science and Technology, Technological and Higher Education Institute of Hong Kong, Hong Kong
| | - Zifeng Luo
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Yongtao Li
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Chengyu Chen
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Xingjian Yang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Zhiwei Shao
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Dickson Y S Yan
- Faculty of Science and Technology, Technological and Higher Education Institute of Hong Kong, Hong Kong.
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9
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Chang M, Wang Y, Zhong R, Zhang K, Pan Y, Lyu L, Zhu T. Performance of HABR + MSABP system for the treatment of dairy wastewater and analyses of microbial community structure and low excess sludge production. BIORESOURCE TECHNOLOGY 2020; 311:123576. [PMID: 32470867 DOI: 10.1016/j.biortech.2020.123576] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/20/2020] [Accepted: 05/21/2020] [Indexed: 05/12/2023]
Abstract
The potential of the system, a hybrid anaerobic baffled reactor (HABR) coupled with a multi-stage active biological process (MSABP) reactor, for simulated dairy wastewater at various temperature, hydraulic retention time (HRT), and pH was investigated. Percentage removals of chemical oxygen demand (COD) and NH4+ were optimized using response surface methodology. Under optimized conditions (temperature, 33 °C; HRT, 24 h; pH, 7.35), the removal efficiencies of COD and NH4+ were 99.89% and 97.83%, respectively. Miseq sequencing analysis exhibited that the anaerobic segment of the system was dominated by fermentation and acetogenic bacteria, and in the aerobic segment, microorganisms involved in the nitrogen cycle were significantly enriched. Meanwhile, it could be found that the excess sludge production of the process was much lower than that of other bio-processes. The average excess sludge production rate was 0.025-0.05 g SS/g COD removed under different organic loadings.
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Affiliation(s)
- Mingdong Chang
- School of Mechanical Engineering and Automation, Northeastern University, 3-11, Wenhua Road, Heping District, Shenyang 110819, China
| | - Youzhao Wang
- School of Mechanical Engineering and Automation, Northeastern University, 3-11, Wenhua Road, Heping District, Shenyang 110819, China
| | - Rui Zhong
- School of Mechanical Engineering and Automation, Northeastern University, 3-11, Wenhua Road, Heping District, Shenyang 110819, China
| | - Kuo Zhang
- School of Mechanical Engineering and Automation, Northeastern University, 3-11, Wenhua Road, Heping District, Shenyang 110819, China
| | - Yuan Pan
- School of Mechanical Engineering and Automation, Northeastern University, 3-11, Wenhua Road, Heping District, Shenyang 110819, China
| | - Liting Lyu
- School of Mechanical Engineering and Automation, Northeastern University, 3-11, Wenhua Road, Heping District, Shenyang 110819, China
| | - Tong Zhu
- School of Mechanical Engineering and Automation, Northeastern University, 3-11, Wenhua Road, Heping District, Shenyang 110819, China.
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Yuan Y, Cheng H, Chen F, Zhang Y, Xu X, Huang C, Chen C, Liu W, Ding C, Li Z, Chen T, Wang A. Enhanced methane production by alleviating sulfide inhibition with a microbial electrolysis coupled anaerobic digestion reactor. ENVIRONMENT INTERNATIONAL 2020; 136:105503. [PMID: 32006760 DOI: 10.1016/j.envint.2020.105503] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/15/2020] [Accepted: 01/16/2020] [Indexed: 06/10/2023]
Abstract
Anaerobic digestion (AD) of organics is a challenging task under high-strength sulfate (SO42-) conditions. The generation of toxic sulfides by SO42--reducing bacteria (SRB) causes low methane (CH4) production. This study investigated the feasibility of alleviating sulfide inhibition and enhancing CH4 production by using an anaerobic reactor with built-in microbial electrolysis cell (MEC), namely ME-AD reactor. Compared to AD reactor, unionized H2S in the ME-AD reactor was sufficiently converted into ionized HS- due to the weak alkaline condition created via cathodic H2 production, which relieved the toxicity of unionized H2S to methanogenesis. Correspondingly, the CH4 production in the ME-AD system was 1.56 times higher than that in the AD reactor with alkaline-pH control and 3.03 times higher than that in the AD reactors (no external voltage and no electrodes) without alkaline-pH control. MEC increased the amount of substrates available for CH4-producing bacteria (MPB) to generate more CH4. Microbial community analysis indicated that hydrogentrophic MPB (e.g. Methanosphaera) and acetotrophic MPB (e.g. Methanosaeta) participated in the two major pathways of CH4 formation were successfully enriched in the cathode biofilm and suspended sludge of the ME-AD system. Economic revenue from increased CH4 production totally covered the cost of input electricity. Integration of MEC with AD could be an attractive technology to alleviate sulfide inhibition and enhance CH4 production from AD of organics under SO42--rich condition.
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Affiliation(s)
- Ye Yuan
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China; Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Haoyi Cheng
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Fan Chen
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Yiqian Zhang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Xijun Xu
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Cong Huang
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Chuan Chen
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Wenzong Liu
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Cheng Ding
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Zhaoxia Li
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Tianming Chen
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
| | - Aijie Wang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China; Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
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11
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Kim T, An J, Jang JK, Chang IS. Determination of optimum electrical connection mode for multi-electrode-embedded microbial fuel cells coupled with anaerobic digester for enhancement of swine wastewater treatment efficiency and energy recovery. BIORESOURCE TECHNOLOGY 2020; 297:122464. [PMID: 31791918 DOI: 10.1016/j.biortech.2019.122464] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/15/2019] [Accepted: 11/16/2019] [Indexed: 06/10/2023]
Abstract
In this work, three multi-electrode-embedded microbial fuel cells (MFCs) were connected sequentially and operated in series and parallel modes, fed by effluent of an anaerobic digester continuously operated using swine wastewater. The anaerobic digester achieved ~0.75 CH4 L d-1 while removing 71.2% of COD and 0.8% of ammonia, which was comparable to the literatures reported. The MFCs removed additional COD from the anaerobic digester effluent, achieving the lowest concentration in the last unit, leading to a voltage reversal in the serially-connected unit. The MFCs connected and operated in parallel mode showed the highest power density of ~25 W m-3, which is 18% higher compared to the one operated in series mode. These results definitively show that differences in substrate concentrations among MFC units are inevitable with sequential flow. Further, a parallel connection mode of operation is necessary to achieve stable, long-term power generation from MFC units, without any electrical malfunction.
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Affiliation(s)
- Taeyoung Kim
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea; Green Energy Institute, 177 Samhyangcheon-ro, Mokpo, Jeollanam-do 58656, Republic of Korea
| | - Junyeong An
- Environmental Assessment Group, Korea Environment Institute, Seojong 30147, Republic of Korea
| | - Jae Kyung Jang
- Energy and Environmental Engineering Division, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju-si 54875, Republic of Korea
| | - In Seop Chang
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea.
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12
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Process validation of integrated bioelectrochemical and membrane reactor for synchronous bioenergy extraction and sustainable wastewater treatment at a semi-pilot scale. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.107309] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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13
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Wang C, Yao Z, Bai L, Wang C, Jiang H. Application of a microbial fuel cell-based biosensor for the energy-saving operation of macrophyte residues bioreactor with low concentration of dissolved organic carbon in effluents. CHEMOSPHERE 2019; 220:1075-1082. [PMID: 33395794 DOI: 10.1016/j.chemosphere.2018.12.209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 11/26/2018] [Accepted: 12/31/2018] [Indexed: 06/12/2023]
Abstract
The increasing application of plant residues bioreactor for aquatic environment remediation may release numerous dissolved organic carbon (DOC) into aquatic ecosystems. In this study, a microbial fuel cell (MFC) sensor was integrated with a macrophyte residues bioreactor (MRBR) to provide an energy-saving way for reduction of DOC concentrations in the effluent. Through re-utilization of macrophyte residues as solid carbon source, DOC concentrations in the effluent of MRBR increased to the maximum on day 5 and then dropped down rapidly to a low value, while the ratio of bioavailable DOC decreased gradually. Interestingly, it was found that there existed a linear relationship between DOC concentrations in initial residue leachate and the voltage from MFC biosensor (R2 = 0.9852). Accordingly, aerobic biofilm through aeration were applied in the upper part of MRBR to enhance the degradation of DOC prior to discharge to aquatic systems, and aeration rate was adjusted based on MFC sensor signal. Further experiments demonstrated that when voltage decreased from 0.18 V to 0.09 V, a half of aeration rate (7.5 L min-1) could still lead to a high DOC degradation efficiency (above 50%) and a low DOC concentration (∼10 mg L-1) in the reactor effluent. Thus, the integrated MFC signal could be used to regulate the aeration rate in order to obtain a low DOC concentration in effluents under an energy-saving way.
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Affiliation(s)
- Chunliu Wang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zongbao Yao
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Leilei Bai
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Changhui Wang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Helong Jiang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China.
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14
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Jia H, Liu W, Wang J, Ngo HH, Guo W, Zhang H. Optimization of sensing performance in an integrated dual sensors system combining microbial fuel cells and upflow anaerobic sludge bed reactor. CHEMOSPHERE 2018; 210:931-940. [PMID: 30208553 DOI: 10.1016/j.chemosphere.2018.07.119] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 07/16/2018] [Accepted: 07/21/2018] [Indexed: 06/08/2023]
Abstract
Two bio-cathode microbial fuel cells (MFCs) with Upflow anaerobic sludge blanket (UASB) are integrated to construct a UASB-MFC dual sensors system, developed to solve the problems of low accuracy and less information about the single sensor system. The bio-cathode MFC is developed as the biosensor for UASB operation performance and online monitoring. Owing to the biosorption of anaerobic microbes, the MFC in the suspended layer is more suitable for effluent chemical oxygen demand (COD) real-time monitoring, and the MFC in the sludge layer is more suitable for total volatile fatty acid (TVFA) real-time monitoring. Electrochemical analysis discovers that the lower electron transfer resistance determines the higher sensitivity of MFC in the suspended layer. The difference in species abundance indicates that TVFA has a stronger inhibitory effect on MFC in the sludge layer. The novel UASB-MFC dual sensors system shows promising potential for COD and TVFA simultaneous online monitoring, which can enhance the reliability of anaerobic reaction.
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Affiliation(s)
- Hui Jia
- State Key Laboratory of Separation Membranes and Membrane Process, Tianjin Polytechnic University, Tianjin 300387, China; School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China
| | - Wenbin Liu
- State Key Laboratory of Separation Membranes and Membrane Process, Tianjin Polytechnic University, Tianjin 300387, China; School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China
| | - Jie Wang
- State Key Laboratory of Separation Membranes and Membrane Process, Tianjin Polytechnic University, Tianjin 300387, China; School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Huu-Hao Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Wenshan Guo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Hongwei Zhang
- State Key Laboratory of Separation Membranes and Membrane Process, Tianjin Polytechnic University, Tianjin 300387, China; School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China
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15
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Perazzoli S, Bastos RB, Santana FB, Soares HM. Biological fuel cells produce bioelectricity with in-situ brackish water purification. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2018; 78:301-309. [PMID: 30101765 DOI: 10.2166/wst.2018.295] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Biological fuel cells, namely microbial desalination cells (MDCs) are a promising alternative to traditional desalination technologies, as microorganisms can convert the energy stored in wastewater directly into electricity and utilize it in situ to drive desalination, producing a high-quality reuse water. However, there are several challenges to be overcome in order to scale up from laboratory research. This study was conducted in order to better understand the performance of MDCs inoculated with marine sediments during the treatment of brackish water (5.0 g L-1 of NaCl) under three different configurations and cycles of desalination, envisaging the future treatment of saline wastewaters with conductivities lower than 10 mS cm-1. Results have shown that by increasing the desalination cycle three times, the efficiency of salt removal was improved by 3.4, 2.4 and 2.3 times for 1-MDC, 3-MDC, and 5-MDC, respectively. The same trend was observed for electrochemical data. Findings encourage further development of the MDC for sustainable brackish water and wastewater purification and future on-site utilization.
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Affiliation(s)
- Simone Perazzoli
- Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, SC 88034-001, Brazil E-mail:
| | - Renan B Bastos
- College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande, RS 95500-000, Brazil
| | - Fabrício B Santana
- College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande, RS 95500-000, Brazil
| | - Hugo M Soares
- Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, SC 88034-001, Brazil E-mail:
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16
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Liu W, Jia H, Wang J, Zhang H, Xin C, Zhang Y. Microbial fuel cell and membrane bioreactor coupling system: recent trends. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:23631-23644. [PMID: 29971742 DOI: 10.1007/s11356-018-2656-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 06/25/2018] [Indexed: 06/08/2023]
Abstract
Membrane bioreactor (MBR) and microbial fuel cell (MFC) are new technologies based on microbial process. MBR takes separation process as the core to achieve the high efficient separation and enrichment the beneficiation of microbes during the biological treatment. MFC is a novel technology based on electrochemical process to realize the mutual conversion between biomass energy and electric energy, in order to solve the problems of serious membrane fouling and low efficiency of denitrification in membrane bioreactor, the low power generation efficiency, and unavailability of bioelectric energy of MFC. In recent years, MFC-MBR coupling system emerged. It can effectively mitigate the membrane fouling and reduce the excess sludge production. Simultaneously, the electricity can be used effectively. The new coupling system has good prospects for development. In this paper, we summarized the research progresses of the two kinds of coupling systems in recent years and analyzed the coupling structure and forms. Based on the above, the future development fields of the MFC-MBR coupling system were prospected.
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Affiliation(s)
- Wenbin Liu
- School of Environmental and Chemical Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin, 300387, China
- School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin, 300387, China
| | - Hui Jia
- School of Environmental and Chemical Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin, 300387, China.
- School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin, 300387, China.
| | - Jie Wang
- School of Environmental and Chemical Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin, 300387, China.
- School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin, 300387, China.
| | - Hongwei Zhang
- School of Environmental and Chemical Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin, 300387, China
- School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin, 300387, China
| | - Changchun Xin
- School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin, 300387, China
| | - Yingjie Zhang
- School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin, 300387, China
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17
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18
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Seo Y, Kang H, Chang S, Lee YY, Cho KS. Effects of nitrate and sulfate on the performance and bacterial community structure of membrane-less single-chamber air-cathode microbial fuel cells. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2018; 53:13-24. [PMID: 29035628 DOI: 10.1080/10934529.2017.1366242] [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] [Indexed: 06/07/2023]
Abstract
Membrane-less, single-chamber, air-cathode, microbial fuel cells (ML-SC MFCs) have attracted attention as being suitable for wastewater treatment. In this study, the effects of nitrate and sulfate on the performance of ML-SC MFCs and their bacterial structures were evaluated. The maximum power density increased after nitrate addition from 8.6 mW·m-2 to 14.0 mW·m-2, while it decreased after sulfate addition from 11.5 mW·m-2 to 7.7 mW·m-2. The chemical oxygen demand removal efficiencies remained at more than 90% regardless of the nitrate or sulfate additions. The nitrate was removed completely (93.0%) in the ML-SC MFC, while the sulfate removal efficiency was relatively low (17.6%). Clostridium (23.1%), Petrimonas (20.0%), and unclassified Rhodocyclaceae (6.2%) were dominant on the anode before the addition of nitrate or sulfate. After the addition of nitrate, Clostridium was still the most dominant on the anode (23.6%), but Petrimonas significantly decreased (6.0%) and unclassified Rhodocyclaceae increased (17.1%). After the addition of sulfate, the amount of Clostridium almost doubled in the composition on the anode (43.2%), while Petrimonas decreased (5.5%). The bacterial community on the cathode was similar to that on the anode after the addition of nitrate. However, Desulfovibrio was remarkably dominant on the cathode (32.9%) after the addition of sulfate. These results promote a deeper understanding of the effects of nitrate or sulfate on the ML-SC MFCs' performance and their bacterial community.
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Affiliation(s)
- Yoonjoo Seo
- a Department of Environmental Science and Engineering , Ewha Womans University , Seoul , Republic of Korea
| | - Hyemin Kang
- a Department of Environmental Science and Engineering , Ewha Womans University , Seoul , Republic of Korea
| | - Sumin Chang
- a Department of Environmental Science and Engineering , Ewha Womans University , Seoul , Republic of Korea
| | - Yun-Yeong Lee
- a Department of Environmental Science and Engineering , Ewha Womans University , Seoul , Republic of Korea
| | - Kyung-Suk Cho
- a Department of Environmental Science and Engineering , Ewha Womans University , Seoul , Republic of Korea
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19
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Cetinkaya AY, Ozdemir OK, Koroglu EO, Hasimoglu A, Ozkaya B. The development of catalytic performance by coating Pt-Ni on CMI7000 membrane as a cathode of a microbial fuel cell. BIORESOURCE TECHNOLOGY 2015; 195:188-193. [PMID: 26116447 DOI: 10.1016/j.biortech.2015.06.064] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 06/12/2015] [Accepted: 06/13/2015] [Indexed: 06/04/2023]
Abstract
Performance of cathode materials in microbial fuel cell (MFC) from dairy wastewater has been investigated in laboratory tests. Both cyclic voltammogram experiments and MFC tests showed that Pt-Ni cathode much better than pure Pt cathode. MFC with platinum cathode had the maximum power density of 0.180 W m(-2) while MFC with Pt:Ni (1:1) cathode produced the maximum power density of 0.637 W m(-2), even if the mass mixing ratio of Pt is lower in the alloy were used. The highest chemical oxygen demand (COD) removal efficiency was around 82-86% in both systems. The cyclic voltammogram (CV) analyses show that Pt:Ni (1:1) offers higher specific surface area than Pt alone does. X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM) results showed that entire Pt:Ni (1:1) alloys can reduce the oxygen easily than pure platinum, even though less precious metal amount. The main outcome of this study is that Pt-Ni, may serve as a alternative catalyst in MFC applications.
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Affiliation(s)
- Afsin Y Cetinkaya
- Yildiz Technical University, Department of Environmental Engineering, Istanbul, Turkey.
| | - Oguz Kaan Ozdemir
- Yildiz Technical University, Department of Metallurgical and Material Engineering, Istanbul, Turkey
| | - Emre Oguz Koroglu
- Yildiz Technical University, Department of Environmental Engineering, Istanbul, Turkey
| | - Aydin Hasimoglu
- Nanotechnology Research Center, Gebze Institute of Technology, Istanbul, Turkey
| | - Bestami Ozkaya
- Yildiz Technical University, Department of Environmental Engineering, Istanbul, Turkey
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20
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Liu Y, Zhang B, Tian C, Feng C, Wang Z, Cheng M, Hu W. Optimization of enhanced bioelectrical reactor with electricity from microbial fuel cells for groundwater nitrate removal. ENVIRONMENTAL TECHNOLOGY 2015; 37:1008-1017. [PMID: 26402418 DOI: 10.1080/09593330.2015.1096962] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Factors influencing the performance of a continual-flow bioelectrical reactor (BER) intensified by microbial fuel cells for groundwater nitrate removal, including nitrate load, carbon source and hydraulic retention time (HRT), were investigated and optimized by response surface methodology (RSM). With the target of maximum nitrate removal and minimum intermediates accumulation, nitrate load (for nitrogen) of 60.70 mg/L, chemical oxygen demand (COD) of 849.55 mg/L and HRT of 3.92 h for the BER were performed. COD was the dominant factor influencing performance of the system. Experimental results indicated the undistorted simulation and reliable optimized values. These demonstrate that RSM is an effective method to evaluate and optimize the nitrate-reducing performance of the present system and can guide mathematical models development to further promote its practical applications.
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Affiliation(s)
- Ye Liu
- a Key Laboratory of Groundwater Circulation and Evolution, Ministry of Education of China , School of Water Resources and Environment, China University of Geosciences Beijing , Beijing , People's Republic of China
| | - Baogang Zhang
- a Key Laboratory of Groundwater Circulation and Evolution, Ministry of Education of China , School of Water Resources and Environment, China University of Geosciences Beijing , Beijing , People's Republic of China
| | - Caixing Tian
- a Key Laboratory of Groundwater Circulation and Evolution, Ministry of Education of China , School of Water Resources and Environment, China University of Geosciences Beijing , Beijing , People's Republic of China
| | - Chuanping Feng
- a Key Laboratory of Groundwater Circulation and Evolution, Ministry of Education of China , School of Water Resources and Environment, China University of Geosciences Beijing , Beijing , People's Republic of China
| | - Zhijun Wang
- a Key Laboratory of Groundwater Circulation and Evolution, Ministry of Education of China , School of Water Resources and Environment, China University of Geosciences Beijing , Beijing , People's Republic of China
| | - Ming Cheng
- a Key Laboratory of Groundwater Circulation and Evolution, Ministry of Education of China , School of Water Resources and Environment, China University of Geosciences Beijing , Beijing , People's Republic of China
| | - Weiwu Hu
- a Key Laboratory of Groundwater Circulation and Evolution, Ministry of Education of China , School of Water Resources and Environment, China University of Geosciences Beijing , Beijing , People's Republic of China
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21
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A microbial fuel cell treating organic wastewater containing high sulfate under continuous operation: Performance and microbial community. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.06.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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22
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Yu J, Zeng A, Yuan X, Zhang X, Ju J. Optimizing and scale-up strategy of molecular distillation for the purification of lactic acid from fermentation broth. SEP SCI TECHNOL 2015. [DOI: 10.1080/01496395.2015.1056363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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23
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Cai J, Zheng P, Qaisar M, Luo T. Prediction and quantifying parameter importance in simultaneous anaerobic sulfide and nitrate removal process using artificial neural network. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:8272-8279. [PMID: 25523291 DOI: 10.1007/s11356-014-3976-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 12/09/2014] [Indexed: 06/04/2023]
Abstract
The present investigation deals with the prediction of the performance of simultaneous anaerobic sulfide and nitrate removal in an upflow anaerobic sludge bed (UASB) reactor through an artificial neural network (ANN). Influent sulfide concentration, influent nitrate concentration, S/N mole ratio, pH, and hydraulic retention time (HRT) for 144 days' steady-state condition were the inputs of the model; whereas output parameters were sulfide removal percentage, nitrate removal percentage, sulfate production percentage, and nitrogen production percentage. The prediction performance was evaluated by calculating root mean square error (RMSE), mean absolute error (MAE), mean absolute relative error (MARE), and determination coefficient (R (2)) values. Generally, the ANN model exhibited good prediction of the simultaneous sulfide and nitrate removal process. The effect of five input parameters to the performance of the reactor was quantified and compared using the connection weights method, Garson's algorithm method, and partial derivatives (PaD) method. The results showed that HRT markedly affects the performance of the reactor.
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Affiliation(s)
- Jing Cai
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310012, China,
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Wang H, Ren ZJ. A comprehensive review of microbial electrochemical systems as a platform technology. Biotechnol Adv 2013; 31:1796-807. [PMID: 24113213 DOI: 10.1016/j.biotechadv.2013.10.001] [Citation(s) in RCA: 334] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 09/17/2013] [Accepted: 10/02/2013] [Indexed: 10/26/2022]
Abstract
Microbial electrochemical systems (MESs) use microorganisms to covert the chemical energy stored in biodegradable materials to direct electric current and chemicals. Compared to traditional treatment-focused, energy-intensive environmental technologies, this emerging technology offers a new and transformative solution for integrated waste treatment and energy and resource recovery, because it offers a flexible platform for both oxidation and reduction reaction oriented processes. All MESs share one common principle in the anode chamber, in which biodegradable substrates, such as waste materials, are oxidized and generate electrical current. In contrast, a great variety of applications have been developed by utilizing this in situ current, such as direct power generation (microbial fuel cells, MFCs), chemical production (microbial electrolysis cells, MECs; microbial electrosynthesis, MES), or water desalination (microbial desalination cells, MDCs). Different from previous reviews that either focus on one function or a specific application aspect, this article provides a comprehensive and quantitative review of all the different functions or system constructions with different acronyms developed so far from the MES platform and summarizes nearly 50 corresponding systems to date. It also provides discussions on the future development of this promising yet early-stage technology.
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Affiliation(s)
- Heming Wang
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, CO 80309, United States.
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Zhang J, Zhang B, Tian C, Ye Z, Liu Y, Lei Z, Huang W, Feng C. Simultaneous sulfide removal and electricity generation with corn stover biomass as co-substrate in microbial fuel cells. BIORESOURCE TECHNOLOGY 2013; 138:198-203. [PMID: 23612180 DOI: 10.1016/j.biortech.2013.03.167] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 03/22/2013] [Accepted: 03/24/2013] [Indexed: 06/02/2023]
Abstract
Microbial fuel cells (MFCs), representing a promising method to treat combined pollutants with energy recovery, were utilized to remove sulfide and recover power with corn stover filtrate (CSF) as the co-substrate in present study. A maximum power density of 744 mW/m(2) was achieved with sulfide removal of 91% during 72 h operation when the CSF concentrations (mg-COD/l) and the electrolyte conductivity were set at 800 mg/l and 10.06 mS/cm, respectively, while almost 52% COD was removed due to the microbial degradation of CSF to the volatile organic carbons. CSF concentrations and electrolyte conductivities had significant effects on the performance of the MFCs. Simultaneous removals of inorganic pollutant and complex organic compounds with electricity generation in MFCs are reported for the first time. These results provide a good reference for multiple contaminations treatment especially sulfide containing wastewaters based on the MFC technology.
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Affiliation(s)
- Jing Zhang
- Key Laboratory of Groundwater Circulation and Evolution, China University of Geosciences Beijing, Ministry of Education, Beijing 100083, China
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