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Ummalyma SB, Bhaskar T. Recent advances in the role of biocatalyst in biofuel cells and its application: An overview. Biotechnol Genet Eng Rev 2024; 40:2051-2089. [PMID: 37010302 DOI: 10.1080/02648725.2023.2197715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 03/09/2023] [Indexed: 04/04/2023]
Abstract
Biofuel cells have recently gained popularity as a green and renewable energy source. Biofuel cells are unique devices of energy and are capable of converting the stored chemical energy from waste materials such as pollutants, organics and wastewater into reliable, renewable, pollution-free energy sources through the action of biocatalysts such as various microorganisms and enzymes. It is a promising technological device to treat waste to compensate for global warming and the energy crisis through the green energy production process. Due to their unique properties, various potential biocatalysts are attracting researchers to apply them to various microbial biofuel cells for improving electricity and power. Recent research in biofuel cells is focusing on the exploitation of different biocatalysts and how they are enhancing power generation for various applications in the field of environmental technology, and biomedical fields such as implantable devices, testing kits, and biosensors. This review focusing the importance of microbial fuel cells (MFCs) and enzymatic fuel cells (ECFs) and role of different types of biocatalysts and their mechanisms for improving biofuel cell efficiency gathered from recent reports. Finally, its multifaceted applications with special emphasis on environmental technology and biomedical field will be described, along with future perspectives.
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Affiliation(s)
- Sabeela Beevi Ummalyma
- Department of Biotechnology, Govt. of India Takyelpat, Institute of Bioresources and Sustainable Development (IBSD)An Autonomous Institute, Imphal, India
| | - Thallada Bhaskar
- Material Resource Efficiency Division, CSIR-Indian Institute of Petroleum, Dehradun, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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2
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Umar A, Mubeen M, Ali I, Iftikhar Y, Sohail MA, Sajid A, Kumar A, Solanki MK, Kumar Divvela P, Zhou L. Harnessing fungal bio-electricity: a promising path to a cleaner environment. Front Microbiol 2024; 14:1291904. [PMID: 38352061 PMCID: PMC10861785 DOI: 10.3389/fmicb.2023.1291904] [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: 09/10/2023] [Accepted: 12/20/2023] [Indexed: 02/16/2024] Open
Abstract
Integrating fungi into fuel cell systems presents a promising opportunity to address environmental pollution while simultaneously generating energy. This review explores the innovative concept of constructing wetlands as fuel cells for pollutant degradation, offering a practical and eco-friendly solution to pollution challenges. Fungi possess unique capabilities in producing power, fuel, and electricity through metabolic processes, drawing significant interest for applications in remediation and degradation. Limited data exist on fungi's ability to generate electricity during catalytic reactions involving various enzymes, especially while remediating pollutants. Certain species, such as Trametes versicolor, Ganoderma lucidum, Galactomyces reessii, Aspergillus spp., Kluyveromyce smarxianus, and Hansenula anomala, have been reported to generate electricity at 1200 mW/m3, 207 mW/m2, 1,163 mW/m3, 438 mW/m3, 850,000 mW/m3, and 2,900 mW/m3, respectively. Despite the eco-friendly potential compared to conventional methods, fungi's role remains largely unexplored. This review delves into fungi's exceptional potential as fuel cell catalysts, serving as anodic or cathodic agents to mitigate land, air, and water pollutants while simultaneously producing fuel and power. Applications cover a wide range of tasks, and the innovative concept of wetlands designed as fuel cells for pollutant degradation is discussed. Cost-effectiveness may vary depending on specific contexts and applications. Fungal fuel cells (FFCs) offer a versatile and innovative solution to global challenges, addressing the increasing demand for alternative bioenergy production amid population growth and expanding industrial activities. The mechanistic approach of fungal enzymes via microbial combinations and electrochemical fungal systems facilitates the oxidation of organic substrates, oxygen reduction, and ion exchange membrane orchestration of essential reactions. Fungal laccase plays a crucial role in pollutant removal and monitoring environmental contaminants. Fungal consortiums show remarkable potential in fine-tuning FFC performance, impacting both power generation and pollutant degradation. Beyond energy generation, fungal cells effectively remove pollutants. Overall, FFCs present a promising avenue to address energy needs and mitigate pollutants simultaneously.
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Affiliation(s)
- Aisha Umar
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- Institute of Botany, University of the Punjab, Lahore, Pakistan
| | - Mustansar Mubeen
- Department of Plant Pathology, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Iftikhar Ali
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, United States
| | - Yasir Iftikhar
- Department of Plant Pathology, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Muhammad Aamir Sohail
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Ashara Sajid
- Department of Plant Pathology, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Ajay Kumar
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India
| | - Manoj Kumar Solanki
- Department of Life Sciences and Biological Sciences, IES University, Bhopal, Madhya Pradesh, India
- Plant Cytogenetics and Molecular Biology Group, Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Katowice, Poland
| | | | - Lei Zhou
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
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Guo H, Xie S, Huang C, Tang S, Geng X, Jia X. An electricity-generating bacterium separated from oil sludge microbial fuel cells and its environmental adaptability. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:3697-3706. [PMID: 35953747 DOI: 10.1007/s11356-022-22467-1] [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: 03/25/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
Electricity-generating bacteria as biocatalysts for microbial fuel cells (MFCs), their species, and power generation performance determine the pollution control and power generation performance of MFCs. And there are few studies on the types and performance of electricity-generating bacteria isolated from oily sludge microbial fuel cells. For improving the power generation performance of oily sludge MFCs, an electricity-generating bacterium was isolated from the oily sludge. More importantly, the adaptability of nitrogen to phosphorus ratio, temperature, and pH of the electricity-generating bacteria were adjusted by a controlled variable method. The results of this study showed that the electricity-generating bacterium was identified as Bacillus cereus, with a rod-shaped cell, about 0.5-1.0 μm in length. The optimal nitrogen-phosphorus ratio, temperature, and pH of MFCs were 4.67:1, 25 ℃, and pH = 7, respectively. Its maximum power density, COD, and oil removal rate was up to 65 mW·m-3, 90.51%, and 87.76%, respectively. The study of this functional bacterium will provide beneficial assistance for the improvement of oil removal and power generation performance of oily sludge MFCs.
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Affiliation(s)
- Haiying Guo
- College of Chemical Engineering and Safety, Binzhou University, Binzhou, 256600, China.
| | - Shuixiang Xie
- CNPC Research Institute of Safety & Environment Technology, Beijing, 100083, China
| | - Chunfeng Huang
- Shengli Oil Field, Sinopec Group, Dongying, 257000, China
| | - Shanfa Tang
- School of Petroleum Engineering, Yangtze University, Wuhan, 430100, China
| | - Xiaoheng Geng
- College of Chemical Engineering and Safety, Binzhou University, Binzhou, 256600, China
| | - Xinlei Jia
- College of Chemical Engineering and Safety, Binzhou University, Binzhou, 256600, China
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Aliyah, Nasution MAF, Ayudia Putri YMT, Gunlazuardi J, Ivandini TA. Modification of carbon foam with 4-mercaptobenzoic acid functionalised gold nanoparticles for an application in a yeast-based microbial fuel cell. RSC Adv 2022; 12:28647-28657. [PMID: 36320496 PMCID: PMC9540246 DOI: 10.1039/d2ra05100a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 09/30/2022] [Indexed: 02/24/2023] Open
Abstract
Modification of carbon foam with gold nanoparticles (AuNPs) was successfully performed through a hydrothermal method. The modified AuNPs were functionalised with 4-mercaptobenzoic acid (MBA) to improve their affinity toward microorganisms. TEM and SEM characterization indicated that although polydisperse spherical nanoparticles of AuNPs with particle sizes around 17 nm were obtained, the attached nanoparticles were agglomerated to be around 0.4 to 1.5 μm in size on the carbon foam surface. The electrochemical studies using cyclic voltammetry technique affirmed that the modified carbon foam electrodes have electroactive properties against glucose. Evaluation of the electrode was performed for a microbial fuel cell using Candida fukuyamaensis yeast as the microorganisms. The polarization curves showed that functionalisation of AuNPs-modified carbon foam with MBA provides around three times higher current density (1226.93 mA m-2) and power density (330.61 mW m-2) compared to the unmodified one. This result indicated that the modification is suitable to improve yeast attachment on the electrode surface.
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Affiliation(s)
- Aliyah
- Department of Chemistry, Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Indonesia, Kampus UI Depok Depok 16424 Indonesia
| | | | - Yulia Mariana Tesa Ayudia Putri
- Department of Chemistry, Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Indonesia, Kampus UI Depok Depok 16424 Indonesia
| | - Jarnuzi Gunlazuardi
- Department of Chemistry, Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Indonesia, Kampus UI Depok Depok 16424 Indonesia
| | - Tribidasari Anggraningrum Ivandini
- Department of Chemistry, Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Indonesia, Kampus UI Depok Depok 16424 Indonesia
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Sarma H, Bhattacharyya P, Jadhav DA, Pawar P, Thakare M, Pandit S, Mathuriya AS, Prasad R. Fungal-mediated electrochemical system: Prospects, applications and challenges. CURRENT RESEARCH IN MICROBIAL SCIENCES 2021; 2:100041. [PMID: 34841332 PMCID: PMC8610361 DOI: 10.1016/j.crmicr.2021.100041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 05/03/2021] [Accepted: 05/27/2021] [Indexed: 11/26/2022] Open
Abstract
Microbial fuel cells (MFCs) that generate bioelectricity from biodegradable waste have received considerable attention from biologists. Fungi play a significant role as both anodic and cathodic catalysts in MFCs. Saccharomyces cerevisiae is a fungus with an ability to transfer electrons through mediators such as methylene blue (MB), neutral red (NR) or even without a mediator. This unique role of fungal cells in exocellular electron transfer (EET) and their interactions with electrodes hold a lot of promise in areas such as wastewater treatment where yeast cell-based MFCs can be used. The present article highlights the physico-chemical factors affecting the performance of fungal-mediated MFCs in terms of power output and degradation of organic pollutants, along with the challenges associated with fungal MFCs. In addition, to this comparative assessment of fungal-mediated bio-electrochemical systems, their development, possible applications and potential challenges are also discussed.
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Affiliation(s)
- Hemen Sarma
- Department of Botany, Nanda Nath Saikia College, Titabar 785630, Assam, India
| | - P.N. Bhattacharyya
- Mycology and Microbiology Department, Tocklai Tea Research Institute, Tea Research Association, Jorhat 785008, Assam, India
| | - Dipak A. Jadhav
- Department of Agricultural Engineering, Maharashtra Institute of Technology, Aurangabad, 431010, India
| | - Prajakta Pawar
- Amity Institute of Biotechnology, Amity University, Mumbai, Maharashtra, 410206, India
| | - Mayur Thakare
- Amity Institute of Biotechnology, Amity University, Mumbai, Maharashtra, 410206, India
| | - Soumya Pandit
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, 201306, India
| | - Abhilasha Singh Mathuriya
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, 201306, India
| | - Ram Prasad
- Department of Botany, Mahatma Gandhi Central University, Motihari, 845401, Bihar, India
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A sustainable fungal microbial fuel cell (FMFC) for the bioremediation of acetaminophen (APAP) and its main by-product (PAP) and energy production from biomass. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101376] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Li X, Li Y, Zhao X, Zhang X, Zhao Q, Wang X, Li Y. Restructured fungal community diversity and biological interactions promote metolachlor biodegradation in soil microbial fuel cells. CHEMOSPHERE 2019; 221:735-749. [PMID: 30682662 DOI: 10.1016/j.chemosphere.2019.01.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 12/01/2018] [Accepted: 01/06/2019] [Indexed: 06/09/2023]
Abstract
Soil microbial fuel cells (MFCs) provide an inexhaustible electron acceptor for the removal of metolachlor and in situ biocurrent stimulation for fungal activity was investigated. The metolachlor degradation rates enhanced by 33%-36% upon the introduction of electrodes after 23 d. In closed MFCs, the abundance of Mortierella as the most dominant genus increased to 43%-54% from 17% in the original soil, whereas those of Aphanoascus and Penicillium decreased to 0.24%-0.39% and 0.38-0.72% from 14% to 11%, respectively. Additionally, a 10-fold amplification of unique OTUs was observed, mainly from increase on the electrode surface. The different treatments were clustered, especially samples near the cathode. The linear discriminant analysis showed that Aphanoascus fulvescens acted as a biomarker between the original and treated soils. The co-occurrence networks demonstrated that Mortierella universally competed for growth with coexisting species while Cladosporium exhibited the most affiliations with species from the 36 other genera present. The correlation analysis indicated that the species associated with degradation belonged to Mortierella, Kernia, Chaetomium and Trichosporon, while the species associated with electrogenesis were Debaryomyces hansenii and Mortierella polycephala. Importantly, this study is the first to reveal fungal community structure in soil MFCs with degrading pollutants and producing electricity.
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Affiliation(s)
- Xiaojing Li
- Agro-Environmental Protection Institute, Ministry of Agriculture / Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, MARA / Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin 300191, China.
| | - Yue Li
- Agro-Environmental Protection Institute, Ministry of Agriculture / Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, MARA / Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin 300191, China
| | - Xiaodong Zhao
- Agro-Environmental Protection Institute, Ministry of Agriculture / Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, MARA / Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin 300191, China
| | - Xiaolin Zhang
- Agro-Environmental Protection Institute, Ministry of Agriculture / Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, MARA / Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin 300191, China
| | - Qian Zhao
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Nankai University, Tianjin 300350, China
| | - Xin Wang
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Nankai University, Tianjin 300350, China
| | - Yongtao Li
- Agro-Environmental Protection Institute, Ministry of Agriculture / Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, MARA / Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin 300191, China; College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
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8
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Abstract
Fungi are among the microorganisms able to generate electricity as a result of their metabolic processes. Throughout the last several years, a large number of papers on various microorganisms for current production in microbial fuel cells (MFCs) have been published; however, fungi still lack sufficient evaluation in this regard. In this review, we focus on fungi, paying special attention to their potential applicability to MFCs. Fungi used as anodic or cathodic catalysts, in different reactor configurations, with or without the addition of an exogenous mediator, are described. Contrary to bacteria, in which the mechanism of electron transfer is pretty well known, the mechanism of electron transfer in fungi-based MFCs has not been studied intensively. Thus, here we describe the main findings, which can be used as the starting point for future investigations. We show that fungi have the potential to act as electrogens or cathode catalysts, but MFCs based on bacteria–fungus interactions are especially interesting. The review presents the current state-of-the-art in the field of MFC systems exploiting fungi.
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Islam MA, Ethiraj B, Cheng CK, Yousuf A, Thiruvenkadam S, Prasad R, Rahman Khan MM. Enhanced Current Generation Using Mutualistic Interaction of Yeast-Bacterial Coculture in Dual Chamber Microbial Fuel Cell. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b01855] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. Amirul Islam
- Faculty
of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, 26300 Pahang, Malaysia
| | - Baranitharan Ethiraj
- Department
of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam,
Erode District, Tamil Nadu 638401, India
| | - Chin Kui Cheng
- Faculty
of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, 26300 Pahang, Malaysia
- Centre
of Excellence for advancement Research Fluid Flow (CARIFF), Universiti Malaysia Pahang, 26300 Pahang, Malaysia
| | - Abu Yousuf
- Faculty
of Engineering Technology, Universiti Malaysia Pahang, 26300 Pahang, Malaysia
| | - Selvakumar Thiruvenkadam
- Department
of Chemical and Environmental Engineering, Universiti Putra Malaysia, 43400 Serdang, Malaysia
| | - Reddy Prasad
- Department
of Petroleum and Chemical Engineering, Institut Teknologi, Gadong BE1410, Brunei
| | - Md. Maksudur Rahman Khan
- Faculty
of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, 26300 Pahang, Malaysia
- Centre
of Excellence for advancement Research Fluid Flow (CARIFF), Universiti Malaysia Pahang, 26300 Pahang, Malaysia
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Forootanfar H, Arjmand S, Behzadi M, Faramarzi MA. Laccase-Mediated Treatment of Pharmaceutical Wastes. RESEARCH ADVANCEMENTS IN PHARMACEUTICAL, NUTRITIONAL, AND INDUSTRIAL ENZYMOLOGY 2018. [DOI: 10.4018/978-1-5225-5237-6.ch010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Laccases are versatile multi-copper enzymes belonging to the superfamily of oxidase enzymes, which have been known since the nineteenth century. Recent discoveries have refined investigators' views of the potential of laccase as a magic tool for remarkable biotechnological purposes. A literature review of the capabilities of laccases, their assorted substrates, and their molecular mechanism of action now indicates the emergence of a new direction for laccase application as part of an arsenal in the fight against the contamination of water supplies by a number of frequently prescribed medications. This chapter provides a critical review of the literature and reveals the pivotal role of laccases in the elimination and detoxification of pharmaceutical contaminants in aquatic environments and wastewaters.
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Lee YY, Kim TG, Cho KS. Characterization of the COD removal, electricity generation, and bacterial communities in microbial fuel cells treating molasses wastewater. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2016; 51:1131-8. [PMID: 27428492 DOI: 10.1080/10934529.2016.1199926] [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: 05/07/2023]
Abstract
The chemical oxygen demand (COD) removal, electricity generation, and microbial communities were compared in 3 types of microbial fuel cells (MFCs) treating molasses wastewater. Single-chamber MFCs without and with a proton exchange membrane (PEM), and double-chamber MFC were constructed. A total of 10,000 mg L(-1) COD of molasses wastewater was continuously fed. The COD removal, electricity generation, and microbial communities in the two types of single-chamber MFCs were similar, indicating that the PEM did not enhance the reactor performance. The COD removal in the single-chamber MFCs (89-90%) was higher than that in the double-chamber MFC (50%). However, electricity generation in the double-chamber MFC was higher than that in the single-chamber MFCs. The current density (80 mA m(-2)) and power density (17 mW m(-2)) in the double-chamber MFC were 1.4- and 2.2-times higher than those in the single-chamber MFCs, respectively. The bacterial community structures in single- and double-chamber MFCs were also distinguishable. The amount of Proteobacteria in the double-chamber MFC was 2-3 times higher than those in the single-chamber MFCs. For the archaeal community, Methanothrix (96.4%) was remarkably dominant in the single-chamber MFCs, but Methanobacterium (35.1%), Methanosarcina (28.3%), and Methanothrix (16.2%) were abundant in the double-chamber MFC.
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Affiliation(s)
- Yun-Yeong Lee
- a Department of Environmental Science and Engineering , Ewha Womans University , 52 Ewhayeodae-gil, Seodaemun-gu, Seoul , 03760 , Republic of Korea
| | - Tae G Kim
- a Department of Environmental Science and Engineering , Ewha Womans University , 52 Ewhayeodae-gil, Seodaemun-gu, Seoul , 03760 , Republic of Korea
| | - Kyung-Suk Cho
- a Department of Environmental Science and Engineering , Ewha Womans University , 52 Ewhayeodae-gil, Seodaemun-gu, Seoul , 03760 , Republic of Korea
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Yun J, Lee YY, Choi HJ, Cho KS. Process contribution evaluation for COD removal and energy production from molasses wastewater in a BioH 2-BioCH 4-MFC-integrated system. Bioprocess Biosyst Eng 2016; 40:55-62. [PMID: 27573932 DOI: 10.1007/s00449-016-1674-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 08/17/2016] [Indexed: 10/21/2022]
Abstract
In this study, a three-stage-integrated process using the hydrogenic process (BioH2), methanogenic process (BioCH4), and a microbial fuel cell (MFC) was operated using molasses wastewater. The contribution of individual processes to chemical oxygen demand (COD) removal and energy production was evaluated. The three-stage integration system was operated at molasses of 20 g-COD L-1, and each process achieved hydrogen production rate of 1.1 ± 0.24 L-H2 L-1 day-1, methane production rate of 311 ± 18.94 mL-CH4 L-1 day-1, and production rate per electrode surface area of 10.8 ± 1.4 g m-2 day-1. The three-stage integration system generated energy production of 32.32 kJ g-COD-1 and achieved COD removal of 98 %. The contribution of BioH2, BioCH4, and the MFC reactor was 20.8, 72.2, and, 7.0 % of the total COD removal, and 18.7, 81.2, and 0.16 % of the total energy production, respectively. The continuous stirred-tank reactor BioH2 at HRT of 1 day, up-flow anaerobic sludge blanket BioCH4 at HRT of 2 days, and MFC reactor at HRT of 3 days were decided in 1:2:3 ratios of working volume under hydraulic retention time consideration. This integration system can be applied to various configurations depending on target wastewater inputs, and it is expected to enhance energy recovery and reduce environmental impact of the final effluent.
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Affiliation(s)
- Jeonghee Yun
- Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 120-750, Republic of Korea
| | - Yun-Yeong Lee
- Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 120-750, Republic of Korea
| | - Hyung Joo Choi
- Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 120-750, Republic of Korea
| | - Kyung-Suk Cho
- Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 120-750, Republic of Korea.
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