1
|
Quintero-Díaz JC, Gil-Posada JO. Batch and semi-continuous treatment of cassava wastewater using microbial fuel cells and metataxonomic analysis. Bioprocess Biosyst Eng 2024; 47:1057-1070. [PMID: 38842769 PMCID: PMC11213813 DOI: 10.1007/s00449-024-03025-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 04/26/2024] [Indexed: 06/07/2024]
Abstract
The treatment of agroindustrial wastewater using microbial fuel cells (MFCs) is a technological strategy to harness its chemical energy while simultaneously purifying the water. This manuscript investigates the organic load effect as chemical oxygen demand (COD) on the production of electricity during the treatment of cassava wastewater by means of a dual-chamber microbial fuel cell in batch mode. Additionally, specific conditions were selected to evaluate the semi-continuous operational mode. The dynamics of microbial communities on the graphite anode were also investigated. The maximum power density delivered by the batch MFC (656.4 μW m- 2 ) was achieved at the highest evaluated organic load (6.8 g COD L- 1 ). Similarly, the largest COD removal efficiency (61.9%) was reached at the lowest organic load (1.17 g COD L- 1 ). Cyanide degradation percentages (50-70%) were achieved across treatments. The semi-continuous operation of the MFC for 2 months revealed that the voltage across the cell is dependent on the supply or suspension of the organic load feed. The electrode polarization resistance was observed to decreases over time, possibly due to the enrichment of the anode with electrogenic microbial communities. A metataxonomic analysis revealed a significant increase in bacteria from the phylum Firmicutes, primarily of the genus Enterococcus.
Collapse
Affiliation(s)
- Juan Carlos Quintero-Díaz
- Department of Chemical Engineering, Universidad de Antioquia, Calle 70 No. 52-21, Medellín, 050010, Antioquia, Colombia.
| | - Jorge Omar Gil-Posada
- Department of Chemical Engineering, Universidad de Antioquia, Calle 70 No. 52-21, Medellín, 050010, Antioquia, Colombia
| |
Collapse
|
2
|
Hemdan BA, El-Taweel GE, Naha S, Goswami P. Bacterial community structure of electrogenic biofilm developed on modified graphite anode in microbial fuel cell. Sci Rep 2023; 13:1255. [PMID: 36690637 PMCID: PMC9871009 DOI: 10.1038/s41598-023-27795-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 01/09/2023] [Indexed: 01/24/2023] Open
Abstract
Formation of electrogenic microbial biofilm on the electrode is critical for harvesting electrical power from wastewater in microbial biofuel cells (MFCs). Although the knowledge of bacterial community structures in the biofilm is vital for the rational design of MFC electrodes, an in-depth study on the subject is still awaiting. Herein, we attempt to address this issue by creating electrogenic biofilm on modified graphite anodes assembled in an air-cathode MFC. The modification was performed with reduced graphene oxide (rGO), polyaniline (PANI), and carbon nanotube (CNTs) separately. To accelerate the growth of the biofilm, soybean-potato composite (plant) powder was blended with these conductive materials during the fabrication of the anodes. The MFC fabricated with PANI-based anode delivered the current density of 324.2 mA cm-2, followed by CNTs (248.75 mA cm-2), rGO (193 mA cm-2), and blank (without coating) (151 mA cm-2) graphite electrodes. Likewise, the PANI-based anode supported a robust biofilm growth containing maximum bacterial cell densities with diverse shapes and sizes of the cells and broad metabolic functionality. The alpha diversity of the biofilm developed over the anode coated with PANI was the loftiest operational taxonomic unit (2058 OUT) and Shannon index (7.56), as disclosed from the high-throughput 16S rRNA sequence analysis. Further, within these taxonomic units, exoelectrogenic phyla comprising Proteobacteria, Firmicutes, and Bacteroidetes were maximum with their corresponding level (%) 45.5, 36.2, and 9.8. The relative abundance of Gammaproteobacteria, Clostridia, and Bacilli at the class level, while Pseudomonas, Clostridium, Enterococcus, and Bifidobacterium at the genus level were comparatively higher in the PANI-based anode.
Collapse
Affiliation(s)
- Bahaa A Hemdan
- Water Pollution Research Department, Environmental Research and Climate Change Institute, National Research Centre, 33 El-Bohouth St., Dokki, 12622, Giza, Egypt.
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, India.
| | - Gamila E El-Taweel
- Water Pollution Research Department, Environmental Research and Climate Change Institute, National Research Centre, 33 El-Bohouth St., Dokki, 12622, Giza, Egypt
| | - Sunandan Naha
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, India
| | - Pranab Goswami
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, India
| |
Collapse
|
3
|
Ahirwar A, Das S, Das S, Yang YH, Bhatia SK, Vinayak V, Ghangrekar MM. Photosynthetic microbial fuel cell for bioenergy and valuable production: A review of circular bio-economy approach. ALGAL RES 2023. [DOI: 10.1016/j.algal.2023.102973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
4
|
Prathiba S, Kumar PS, Vo DVN. Recent advancements in microbial fuel cells: A review on its electron transfer mechanisms, microbial community, types of substrates and design for bio-electrochemical treatment. CHEMOSPHERE 2022; 286:131856. [PMID: 34399268 DOI: 10.1016/j.chemosphere.2021.131856] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 07/28/2021] [Accepted: 08/08/2021] [Indexed: 06/13/2023]
Abstract
The development in urbanization, growth in industrialization and deficiency in crude oil wealth has made to focus more for the renewable and also sustainable spotless energy resources. In the past two decades, the concepts of microbial fuel cell have caught more considerations among the scientific societies for the probability of converting, organic waste materials into bio-energy using microorganisms catalyzed anode, and enzymatic/microbial/abiotic/biotic cathode electro-chemical reactions. The added benefit with MFCs technology for waste water treatment is numerous bio-centered processes are available such as sulfate removal, denitrification, nitrification, removal of chemical oxygen demand and biological oxygen demand and heavy metals removal can be performed in the same MFC designed systems. The various factors intricate in MFC concepts in the direction of bioenergy production consists of maximum coulombic efficiency, power density and also the rate of removal of chemical oxygen demand which calculates the efficacy of the MFC unit. Even though the efficacy of MFCs in bioenergy production was initially quietly low, therefore to overcome these issues few modifications are incorporated in design and components of the MFC units, thereby functioning of the MFC unit have improvised the rate of bioenergy production to a substantial level by this means empowering application of MFC technology in numerous sectors including carbon capture, bio-hydrogen production, bioremediation, biosensors, desalination, and wastewater treatment. The present article reviews about the microbial community, types of substrates and information about the several designs of MFCs in an endeavor to get the better of practical difficulties of the MFC technology.
Collapse
Affiliation(s)
- S Prathiba
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603 110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603 110, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603 110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603 110, India.
| | - Dai-Viet N Vo
- Institute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam
| |
Collapse
|
5
|
Dynamic Changes in Soil Microbial Communities with Glucose Enrichment in Sediment Microbial Fuel Cells. Indian J Microbiol 2021; 61:497-505. [PMID: 34744205 DOI: 10.1007/s12088-021-00959-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 06/17/2021] [Indexed: 12/21/2022] Open
Abstract
To investigate soil microbial community dynamics in sediment microbial fuel cells (MFCs), this study applied nonhydric (D) and hydric (S) soils to single-chamber and mediator-free MFCs. Glucose was also used to enrich microorganisms in the soils. The voltage outputs of both the D and S sediment MFCs increased over time but differed from each other. The initial open circuit potentials were 345 and 264 mV for the D and S MFCs. The voltage output reached a maximum of 503 and 604 mV for D and S on days 125 and 131, respectively. The maximum power densities of the D and S MFCs were 2.74 and 2.12 mW m-2, analyzed on day 50. Clustering results revealed that the two groups did not cluster after glucose supplementation and 126 days of MFC function. The change in Geobacter abundance was consistent with the voltage output, indicating that these bacteria may act as the main exoelectrogens on the anode. Spearman correlation analysis demonstrated that, in the D soils, Geobacter was positively correlated with Dialister and negatively correlated with Bradyrhizobium, Kaistobacter, Pedomicrobium, and Phascolarctobacterium; in the S soils, Geobacter was positively correlated with Shewanella and negatively correlated with Blautia. The results suggested that different soil sources in the MFCs and the addition of glucose as a nutrient produced diverse microbial communities with varying voltage output efficiencies. Supplementary Information The online version contains supplementary material available at 10.1007/s12088-021-00959-x.
Collapse
|
6
|
McCuskey SR, Chatsirisupachai J, Zeglio E, Parlak O, Panoy P, Herland A, Bazan GC, Nguyen TQ. Current Progress of Interfacing Organic Semiconducting Materials with Bacteria. Chem Rev 2021; 122:4791-4825. [PMID: 34714064 DOI: 10.1021/acs.chemrev.1c00487] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Microbial bioelectronics require interfacing microorganisms with electrodes. The resulting abiotic/biotic platforms provide the basis of a range of technologies, including energy conversion and diagnostic assays. Organic semiconductors (OSCs) provide a unique strategy to modulate the interfaces between microbial systems and external electrodes, thereby improving the performance of these incipient technologies. In this review, we explore recent progress in the field on how OSCs, and related materials capable of charge transport, are being used within the context of microbial systems, and more specifically bacteria. We begin by examining the electrochemical communication modes in bacteria and the biological basis for charge transport. Different types of synthetic organic materials that have been designed and synthesized for interfacing and interrogating bacteria are discussed next, followed by the most commonly used characterization techniques for evaluating transport in microbial, synthetic, and hybrid systems. A range of applications is subsequently examined, including biological sensors and energy conversion systems. The review concludes by summarizing what has been accomplished so far and suggests future design approaches for OSC bioelectronics materials and technologies that hybridize characteristic properties of microbial and OSC systems.
Collapse
Affiliation(s)
- Samantha R McCuskey
- Department of Chemistry, National University of Singapore, Singapore 119077, Singapore
| | - Jirat Chatsirisupachai
- Center for Polymers and Organic Solids & Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States.,Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong 21210, Thailand
| | - Erica Zeglio
- Division of Micro and Nanosystems, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm 17177, Sweden
| | - Onur Parlak
- Dermatology and Venereology Division, Department of Medicine(Solna), Karolinska Institute, Stockholm 17177, Sweden.,AIMES Center of Integrated Medical and Engineering Sciences, Department of Neuroscience, Karolinska Institute, Stockholm 17177, Sweden
| | - Patchareepond Panoy
- Center for Polymers and Organic Solids & Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States.,Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong 21210, Thailand
| | - Anna Herland
- Division of Micro and Nanosystems, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm 17177, Sweden.,AIMES Center of Integrated Medical and Engineering Sciences, Department of Neuroscience, Karolinska Institute, Stockholm 17177, Sweden
| | - Guillermo C Bazan
- Department of Chemistry, National University of Singapore, Singapore 119077, Singapore
| | - Thuc-Quyen Nguyen
- Center for Polymers and Organic Solids & Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| |
Collapse
|
7
|
Yanuka-Golub K, Dubinsky V, Korenblum E, Reshef L, Ofek-Lalzar M, Rishpon J, Gophna U. Anode Surface Bioaugmentation Enhances Deterministic Biofilm Assembly in Microbial Fuel Cells. mBio 2021; 12:e03629-20. [PMID: 33653887 PMCID: PMC8092319 DOI: 10.1128/mbio.03629-20] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 01/19/2021] [Indexed: 11/20/2022] Open
Abstract
Microbial fuel cells (MFCs) generate energy while aiding the biodegradation of waste through the activity of an electroactive mixed biofilm. Metabolic cooperation is essential for MFCs' efficiency, especially during early colonization. Thus, examining specific ecological processes that drive the assembly of anode biofilms is highly important for shortening startup times and improving MFC performance, making this technology cost-effective and sustainable. Here, we use metagenomics to show that bioaugmentation of the anode surface with a taxonomically defined electroactive consortium, dominated by Desulfuromonas, resulted in an extremely rapid current density generation. Conversely, the untreated anode surface resulted in a highly stochastic and slower biofilm assembly. Remarkably, an efficient anode colonization process was obtained only if wastewater was added, leading to a nearly complete replacement of the bioaugmented community by Geobacter lovleyi Although different approaches to improve MFC startup have been investigated, we propose that only the combination of anode bioaugmentation with wastewater inoculation can reduce stochasticity. Such an approach provides the conditions that support the growth of specific newly arriving species that positively support the fast establishment of a highly functional anode biofilm.IMPORTANCE Mixed microbial communities play important roles in treating wastewater, in producing renewable energy, and in the bioremediation of pollutants in contaminated environments. While these processes are well known, especially the community structure and biodiversity, how to efficiently and robustly manage microbial community assembly remains unknown. Moreover, it has been shown that a high degree of temporal variation in microbial community composition and structure often occurs even under identical environmental conditions. This heterogeneity is directly related to stochastic processes involved in microbial community organization, similarly during the initial stages of biofilm formation on surfaces. In this study, we show that anode surface pretreatment alone is not sufficient for a substantial improvement in startup times in microbial fuel cells (MFCs), as previously thought. Rather, we have discovered that the combination of applying a well-known consortium directly on the anode surface together with wastewater (including the bacteria that they contain) is the optimized management scheme. This allowed a selected colonization process by the wastewater species, which improved the functionality relative to that of untreated systems.
Collapse
Affiliation(s)
- Keren Yanuka-Golub
- The Porter School of Environmental Studies, Tel Aviv University, Tel Aviv, Israel
- The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Vadim Dubinsky
- The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Elisa Korenblum
- Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Leah Reshef
- The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | | | - Judith Rishpon
- The Porter School of Environmental Studies, Tel Aviv University, Tel Aviv, Israel
- The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Uri Gophna
- The Porter School of Environmental Studies, Tel Aviv University, Tel Aviv, Israel
- The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| |
Collapse
|
8
|
Bioelectrochemical treatment of real-field bagasse-based paper mill wastewater in dual-chambered microbial fuel cell. 3 Biotech 2021; 11:42. [PMID: 33479596 DOI: 10.1007/s13205-020-02606-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 12/23/2020] [Indexed: 01/20/2023] Open
Abstract
The present study is aimed at analysing the feasibility of bioelectrochemical treatment of bagasse-based paper mill wastewater. Bioelectrochemical treatment was carried out in dual-chambered microbial fuel cell with plain graphite plates as electrodes. Wastewater from sugarcane bagasse storage and washing units of paper mill was used as anolyte. High power density and current density of 53 mW m-2 and 173 mA m-2 at 470 Ω, respectively, could be produced with wastewater treatment efficiency of 85% and coulumbic efficiency of 6%. Whereas, wastewater from pulping and bleaching units of bagasse-based paper mill was not suitable for bioelectrochemical treatment, yielding low power density and current density of 4 mW m-2 and 16 mA m-2 respectively at 10,000 Ω. Later, treating blended wastewater containing bagasse wash water and pulping wastewater in the ratio of 9:1 v/v generated higher power density and current density of 73 mW m-2/202 mA m-2, respectively, at 470 Ω, with wastewater treatment efficiency and coulumbic efficiency of 82% and 18%, respectively. Lignin and its derivatives present in pulping wastewater mediated electron transfer leading to high power density. Further, compounds in pulping wastewater were also toxic to methanogens growth in anode chamber of MFC, resulting in improved coulumbic efficiency of the blended wastewater treatment.
Collapse
|
9
|
Aiyer KS. Synergistic effects in a microbial fuel cell between co-cultures and a photosynthetic alga Chlorella vulgaris improve performance. Heliyon 2021; 7:e05935. [PMID: 33490687 PMCID: PMC7810779 DOI: 10.1016/j.heliyon.2021.e05935] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/21/2020] [Accepted: 01/06/2021] [Indexed: 12/01/2022] Open
Abstract
Microbial communities are catalysts that drive the operation of microbial fuel cells (MFCs). In this study, the use of a defined co-culture of Escherichia coli and Pseudomonas aeruginosa towards improved power generation in MFCs is described. The co-culture has been initially evaluated for substrate consumption, biofilm formation and microbial electron transfer activity. The co-culture gave an enhanced power density of 190.44 mW m−2, while E. coli and P. aeruginosa as pure cultures generated lesser power densities of 139.24 and 158.76 mW m−2 respectively. The photosynthetic alga Chlorella vulgaris was then inoculated in the cathode chamber. Co-cultures in the presence of C. vulgaris improved the mean power density from 175 mW m−2 to 248 mW m−2, a 41.7% rise. A synergistic effect was observed when the co-cultures were coupled with C. vulgaris. Combining co-cultures with photosynthetic MFCs offers a lot of promise in studying mechanisms and expanding the nature of applications.
Collapse
Affiliation(s)
- Kartik S Aiyer
- Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Puttaparthi, Andhra Pradesh 515134, India
| |
Collapse
|
10
|
Leininger A, Yates MD, Ramirez M, Kjellerup B. Biofilm structure, dynamics, and ecology of an upscaled biocathode wastewater microbial fuel cell. Biotechnol Bioeng 2020; 118:1305-1316. [PMID: 33305821 DOI: 10.1002/bit.27653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 10/12/2020] [Accepted: 11/21/2020] [Indexed: 11/05/2022]
Abstract
A microbial fuel cell (MFC) system containing modular half-submerged biocathode was operated for 6 months in an 800 L flow-through system with domestic wastewater. For the first time, spatial and temporal differences in biofilm communities were examined on large three-dimensional electrodes in a wastewater MFC. Biocathode microbial community analysis showed a specialized biofilm community with electrogenic and electrotrophic taxa forming during operation, suggesting potentially opposing electrode reactions. The anodic community structure shifted during operation, but no spatial differences were observed along the length of the electrode. Power output from the system was most strongly influenced by pH. Higher power densities were associated with the use of solids-dewatering filtrate with increased organic matter, conductivity, and pH. The results show that the biocathode was the rate-limiting step and that future MFC design should consider the effect of size, shape, and orientation of biocathodes on their community assembly and electrotrophic ability.
Collapse
Affiliation(s)
- Aaron Leininger
- Department of Civil and Environmental Engineering, University of Maryland, College Park, Maryland, USA
| | - Matthew D Yates
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, District of Columbia, USA
| | - Mark Ramirez
- DC Water Blue Plains, Resource Recovery, Washington, District of Columbia, USA
| | - Birthe Kjellerup
- Department of Civil and Environmental Engineering, University of Maryland, College Park, Maryland, USA
| |
Collapse
|
11
|
Cui Y, Chen X, Pan Z, Wang Y, Xu Q, Bai J, Jia H, Zhou J, Yong X, Wu X. Biosynthesized iron sulfide nanoparticles by mixed consortia for enhanced extracellular electron transfer in a microbial fuel cell. BIORESOURCE TECHNOLOGY 2020; 318:124095. [PMID: 32927315 DOI: 10.1016/j.biortech.2020.124095] [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: 07/24/2020] [Revised: 08/28/2020] [Accepted: 09/02/2020] [Indexed: 06/11/2023]
Abstract
The bioanode of mixed consortia was for the first time used to in-situ synthesize iron sulfide nanoparticles in a microbial fuel cell (MFC) over a long-term period (46 days). These poorly crystalline nanoparticles with an average size of 29.97 ± 7.1 nm, comprising of FeS and FeS2, significantly promoted extracellular electron transfer and thus the electricity generation of the MFC. A maximum power density of 519.00 mW/m2 was obtained from the MFC, which was 1.92 times as high as that of the control. The cell viability was promoted by a small amount of iron sulfide nanoparticles but inhibited by the thick nanoparticle "shell" covered on the bacterial cells. Some electroactive and sulfur reducing bacteria (eg. Enterobacteriaceae, Desulfovibrio, and Geobacter) were specifically enriched on the anode. This study provides a novel insight for improving the performance of bioelectrochemical systems through in-situ sustainable nanomaterials biofabrication by mixed consortia.
Collapse
Affiliation(s)
- Yan Cui
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xueru Chen
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Zhengyong Pan
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yuqi Wang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Qiang Xu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jiaying Bai
- 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
| | - Xiayuan Wu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China.
| |
Collapse
|
12
|
Ali J, Wang L, Waseem H, Song B, Djellabi R, Pan G. Turning harmful algal biomass to electricity by microbial fuel cell: A sustainable approach for waste management. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 266:115373. [PMID: 32827985 DOI: 10.1016/j.envpol.2020.115373] [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: 04/23/2020] [Revised: 06/22/2020] [Accepted: 08/04/2020] [Indexed: 06/11/2023]
Abstract
Effective utilization of harmful algal biomass from eutrophic lakes is required for sustainable waste management and circular bioeconomy. In this study, Microcystis aeruginosa derived biomass served as an electron donor in the microbial fuel cell (MFC) for waste treatment and electricity generation. Bioelectrochemical performance of MFC fed with microalgae (MFC-Algae) was compared with MFC fed with a commercial substrate (MFC-Acetate). Complete removal of microcystin-LR (MC-LR) and high chemical oxygen demand (COD) removal efficiency (67.5 ± 1%) in MFC-Algae showed that harmful algal biomass could be converted into bioelectricity. Polarization curves revealed that MFC-Algae delivered the maximum power density (83 mW/m2) and current density (672 mA/m2), which was 43% and 45% higher than that of MFC-Acetate respectively. Improved electrochemical performance and substantial coulombic efficiency (7.6%) also verified the potential use of harmful algal biomass as an alternate MFC substrate. Diverse microbial community profiles showed the substrate-dependent electrogenic activities in each MFC. Biodegradation pathway of MC-LR by anodic microbes was also explored in detail. Briefly, a sustainable approach for on-site waste management of harmful algal biomass was presented, which was deprived of transportation and special pretreatments. It is anticipated that current findings will help to pave the way for practical applications of MFC technology.
Collapse
Affiliation(s)
- Jafar Ali
- Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing, 100085, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China; Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Department of Biotechnology, University of Sialkot, Punjab, 51310, Pakistan
| | - Lei Wang
- Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing, 100085, PR China
| | - Hassan Waseem
- Department of Biotechnology, University of Sialkot, Punjab, 51310, Pakistan
| | - Bo Song
- Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing, 100085, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Ridha Djellabi
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco- Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China
| | - Gang Pan
- Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing, 100085, PR China; Centre of Integrated Water-Energy-Food Studies, School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Brackenhurst Campus, Southwell NG25 0QF, United Kingdom.
| |
Collapse
|
13
|
Aiyer KS, Rai R, Vijayakumar BS. Dye reduction-based electron-transfer activity monitoring assay for assessing microbial electron transfer activity of microbial fuel cell inocula. J Environ Sci (China) 2020; 96:171-177. [PMID: 32819691 DOI: 10.1016/j.jes.2020.04.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 04/23/2020] [Accepted: 04/23/2020] [Indexed: 06/11/2023]
Abstract
Microbial fuel cells (MFC) utilize microbes as catalysts to convert chemical energy to electricity. Inocula used for MFC operation must therefore contain active microbial population. The dye reduction-based electron-transfer activity monitoring (DREAM) assay was employed to evaluate different inocula used in MFCs for their microbial bioelectrical activity. The assay utilizes the redox property of Methylene Blue to undergo color change from blue to colorless state upon microbial reduction. The extent of Methylene Blue reduction was denoted as the DREAM assay coefficient. DREAM assay was initially performed on a microbial culture along with the growth curve and estimation of colony forming units (CFUs). DREAM coefficient correlated to the CFU/mL obtained over time as growth progressed. The assay was then extended to water samples (domestic sewage, lake and a man-made pond) serving as inocula in MFCs. Domestic wastewater gave the highest DREAM coefficient (0.300 ± 0.05), followed by pond (0.224 ± 0.07) and lake (0.157 ± 0.04) water samples. Power density obtained conformed to the DREAM coefficient values, with the three samples generating power densities of 46.45 ± 5.1, 36.12 ± 3.2 and 25.08 ± 4.3 mW/m2 respectively. We have also studied the role of addition of various carbon sources and their concentrations towards improving the sensitivity of the assay. The DREAM assay is a rapid, easy-to-perform and cost-effective method to assess inocula for their suitability as anolytes in terms of electron transfer potential in MFCs.
Collapse
Affiliation(s)
- Kartik S Aiyer
- Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Puttaparthi, Andhra Pradesh - 515134, India.
| | - Roshan Rai
- Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Puttaparthi, Andhra Pradesh - 515134, India
| | - B S Vijayakumar
- Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Puttaparthi, Andhra Pradesh - 515134, India
| |
Collapse
|
14
|
Ramírez-Vargas CA, Arias CA, Zhang L, Paredes D, Brix H. Community level physiological profiling of microbial electrochemical-based constructed wetlands. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 721:137761. [PMID: 32163740 DOI: 10.1016/j.scitotenv.2020.137761] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 03/02/2020] [Accepted: 03/04/2020] [Indexed: 06/10/2023]
Abstract
The performance of constructed wetlands (CW) can be enhanced through the use of microbial electrochemical technologies like METland systems. Given its novelty, uncertainties exist regarding processes responsible for the pollutant removal and microbial activity within the systems. Genetic characterization of microbial communities of METlands is desirable, but it is a time and resource consuming. An alternative, is the functional analysis based on community-level physiological profile (CLPP), which allows to evaluate the diversity of microbial communities based on the carbon consumption patterns and derived indexes (average well color development - AWCD -, richness, and diversity). This study aimed to characterize the microbial community function of laboratory-scale METlands using the CLPP method. It encompassed the analysis of planted and non-planted set-ups of two carbon-based electroconductive materials (Coke-A and Coke-LSN) colonized with electroactive biofilms, and compared to Sand-filled columns. Variations in the microbial metabolic activity were found to depend on the characteristics of the material rather than to the presence of plants. Coke-A systems showed lower values of AWCD, richness, and diversity than Sand and Coke-LSN systems. This suggests that Coke-A systems provided more favorable conditions for the development of relatively homogeneous microbial biofilms. Additionally, typical parameters of water quality were measured and correlations between utilization of carbon sources and removal of pollutants were established. The results provide useful insight into the spatial dynamics of the microbial activity of METland systems.
Collapse
Affiliation(s)
- Carlos A Ramírez-Vargas
- Department of Bioscience, Aarhus University, 8000 Aarhus C, Denmark; WATEC, Aarhus University, 8000 Aarhus C, Denmark.
| | - Carlos A Arias
- Department of Bioscience, Aarhus University, 8000 Aarhus C, Denmark; WATEC, Aarhus University, 8000 Aarhus C, Denmark
| | - Liang Zhang
- Department of Bioscience, Aarhus University, 8000 Aarhus C, Denmark; WATEC, Aarhus University, 8000 Aarhus C, Denmark
| | - Diego Paredes
- Grupo de Investigación en Agua y Saneamiento (GIAS), Universidad Tecnológica de Pereira, 660003 Pereira, Colombia
| | - Hans Brix
- Department of Bioscience, Aarhus University, 8000 Aarhus C, Denmark; WATEC, Aarhus University, 8000 Aarhus C, Denmark
| |
Collapse
|
15
|
Shen J, Du Z, Li J, Cheng F. Co-metabolism for enhanced phenol degradation and bioelectricity generation in microbial fuel cell. Bioelectrochemistry 2020; 134:107527. [PMID: 32279033 DOI: 10.1016/j.bioelechem.2020.107527] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 03/31/2020] [Accepted: 04/01/2020] [Indexed: 12/16/2022]
Abstract
Co-metabolism is one of the effective approaches to increase the removal of refractory pollutants in microbial fuel cells (MFCs), but studies on the links between the co-substrates and biodegradation remain limited. In this study, four external carbon resources were used as co-substrates for phenol removal and power generation in MFC. The result demonstrated that acetate was the most efficient co-substrate with an initial phenol degradation of 78.8% and the voltage output of 389.0 mV. Polarization curves and cyclic voltammogram analysis indicated that acetate significantly increased the activity of extracellular electron transfer (EET) enzyme of the anodic microorganism, such as cytochrome c OmcA. GC-MS and LC-MS results suggested that phenol was biodegraded via catechol, 2-hydroxymuconic semialdehyde, and pyruvic acid, and these intermediates were reduced apparently in acetate feeding MFC. The microbial community analysis by high-throughput sequencing showed that Acidovorax, Geobacter, and Thauera were predominant species when using acetate as co-substrate. It can be concluded that the efficient removal of phenol was contributed to the positive interactions between electrochemically active bacteria and phenolic degradation bacteria. This study might provide new insight into the positive role of the co-substrate during the treatment of phenolic wastewater by MFC.
Collapse
Affiliation(s)
- Jing Shen
- Institute of Resources and Environmental Engineering, Shanxi Collaborative Innovation Center of High Value-added Utilization of Coal-related Wastes, Shanxi University, Taiyuan 030006, China
| | - Zhiping Du
- Institute of Resources and Environmental Engineering, Shanxi Collaborative Innovation Center of High Value-added Utilization of Coal-related Wastes, Shanxi University, Taiyuan 030006, China.
| | - Jianfeng Li
- Institute of Resources and Environmental Engineering, Shanxi Collaborative Innovation Center of High Value-added Utilization of Coal-related Wastes, Shanxi University, Taiyuan 030006, China.
| | - Fangqin Cheng
- Institute of Resources and Environmental Engineering, Shanxi Collaborative Innovation Center of High Value-added Utilization of Coal-related Wastes, Shanxi University, Taiyuan 030006, China
| |
Collapse
|
16
|
Kim J, Kim YE, Park M, Song YE, Seol E, Kim JR, Oh YK. Microbial Enrichment and Community Analysis for Bioelectrochemical Acetate Production from Carbon Dioxide. ACTA ACUST UNITED AC 2020. [DOI: 10.7849/ksnre.2020.2056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
17
|
Aiyer KS, Vijayakumar BS. An improvised microtiter dish biofilm assay for non-invasive biofilm detection on microbial fuel cell anodes and studying biofilm growth conditions. Braz J Microbiol 2019; 50:769-775. [PMID: 31104214 PMCID: PMC6863186 DOI: 10.1007/s42770-019-00091-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 05/04/2019] [Indexed: 10/26/2022] Open
Abstract
Microbial life is predominantly observed as biofilms, which are a sessile aggregation of microbial cells formed in response to stress conditions. The microtiter dish biofilm formation assay is one of the most important methods of studying biofilm formation. In this study, the assay has been improvised to allow easy detection of biofilm formation on different substrata. The method has then been used to study growth conditions that affect biofilm formation, viz., the effect of pH, temperature, shaking conditions, and the carbon source provided. Glass, cellulose acetate, and carbon cloth materials were used as substrata to study biofilm development under the above conditions. The method was then extended to determine biofilm formation on the anodes of a microbial fuel cell in order to study the effect of biofilm formation on power production. A high correlation was observed between biofilm formation and power density (r = 0.951). When the electrode containing a biofilm was replaced with another electrode without biofilm, the average power density dropped from 59.55 to 5.76 mW/m2. This method offers an easy way to study the suitability of different materials to support biofilm formation. Growth conditions determining biofilm formation can be studied using this method. This method also offers a non-invasive way to determine biofilm formation on anodes of microbial fuel cells and preserves the anode for further studies.
Collapse
Affiliation(s)
- Kartik S. Aiyer
- Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Puttaparthi, Andhra Pradesh 515134 India
| | - B. S. Vijayakumar
- Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Puttaparthi, Andhra Pradesh 515134 India
| |
Collapse
|
18
|
Ramírez-Vargas CA, Arias CA, Carvalho P, Zhang L, Esteve-Núñez A, Brix H. Electroactive biofilm-based constructed wetland (EABB-CW): A mesocosm-scale test of an innovative setup for wastewater treatment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 659:796-806. [PMID: 31096410 DOI: 10.1016/j.scitotenv.2018.12.432] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 12/28/2018] [Accepted: 12/28/2018] [Indexed: 05/20/2023]
Abstract
Constructed wetlands (CWs) performance enhancement can be done with intensification strategies. A recent strategy still in study is the coupling with Microbial Electrochemical Technologies (MET). An alternative system using electro-conductive biofilters instead of electrodes and circuits used in MET, resulted in the development of a Microbial Electrochemical-based CW (METland). This system relies on electroactive bacteria (EAB) metabolism to transfer electrons to an electro-conductive material, thus boosting substrate consumption, and diminishing electron availability for biomass build-up and methane generation. In previous studies this biofilters have shown an improvement in biodegradation rates in comparison with subsurface flow CW. However, this set-up is still in development, hence there are uncertainties regarding the dynamics involve in the removal of pollutants. Considering that, this work aimed at establishing the capacity and removal kinetics of organic matter and nutrients in an Electroactive Biofilm-Based CW (EABB-CW). Two electro-conductive materials were tested (PK-A and PK-LSN) in planted and non-planted mesocosms and compared with sand. The systems were operated in a continuous upflow mode for 32 weeks and fed with real wastewater. The electro-conductive systems reached removal efficiencies up to 88% for BOD5, 90% for COD, 46% for NH4-N, and 86% for PO4-P. Organic matter removal in electro-conductive systems was possible even at loading rates 10-fold higher than recommended for horizontal flow CWs. First-order area-based removal constants (k), calculated for organic matter and nutrients are higher than values typically reported for saturated CW and in certain cases comparable with vertical flow CW. The organic removal was correlated with electron current densities measures, as indicator of the presence of EAB. The tested EABB-CW profiles as a promising CW type for the removal of organic matter and PO4-P with margin for modifications to improve nitrogen removal. Future studies with pilot/real scale systems are proposed to validate the findings of this study.
Collapse
Affiliation(s)
- Carlos A Ramírez-Vargas
- Department of Bioscience - Aquatic Biology, Aarhus University, Denmark; WATEC, Aarhus University, 8000 Aarhus C, Denmark.
| | - Carlos A Arias
- Department of Bioscience - Aquatic Biology, Aarhus University, Denmark; WATEC, Aarhus University, 8000 Aarhus C, Denmark.
| | - Pedro Carvalho
- Department of Bioscience - Aquatic Biology, Aarhus University, Denmark; WATEC, Aarhus University, 8000 Aarhus C, Denmark
| | - Liang Zhang
- Department of Bioscience - Aquatic Biology, Aarhus University, Denmark; WATEC, Aarhus University, 8000 Aarhus C, Denmark
| | | | - Hans Brix
- Department of Bioscience - Aquatic Biology, Aarhus University, Denmark; WATEC, Aarhus University, 8000 Aarhus C, Denmark
| |
Collapse
|
19
|
Ebadinezhad B, Ebrahimi S, Shokrkar H. Evaluation of microbial fuel cell performance utilizing sequential batch feeding of different substrates. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.02.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
20
|
Cao Y, Mu H, Liu W, Zhang R, Guo J, Xian M, Liu H. Electricigens in the anode of microbial fuel cells: pure cultures versus mixed communities. Microb Cell Fact 2019; 18:39. [PMID: 30782155 PMCID: PMC6380051 DOI: 10.1186/s12934-019-1087-z] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 02/12/2019] [Indexed: 11/10/2022] Open
Abstract
Microbial fuel cell (MFC) is an environmentally friendly technology for electricity harvesting from a variety of substrates. Microorganisms used as catalysts in the anodic chamber, which are termed as electricigens, play a major role in the operation of MFCs. This review provides an introduction to the currently identified electricigens on their taxonomical groups and electricity producing abilities. The mechanism of electron transfer from electricigens to electrode is highlighted. The performances of pure culture and mixed communities are compared particularly. It has been proved that the electricity generation capacity and the ability to adapt to the complex environment of MFC systems constructed by pure microbial cultures are less than the systems constructed by miscellaneous consortia. However, pure cultures are useful to clarify the electron transfer mechanism at the microbiological level and further reduce the complexity of mixed communities. Future research trends of electricigens in MFCs should be focused on screening, domestication, modification and optimization of multi-strains to improve their electrochemical activities. Although the MFC techniques have been greatly advanced during the past few years, the present state of this technology still requires to be combined with other processes for cost reduction.
Collapse
Affiliation(s)
- Yujin Cao
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China.
| | - Hui Mu
- Shandong Key Laboratory of Biomass Gasification Technology, Energy Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Wei Liu
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
| | - Rubing Zhang
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
| | - Jing Guo
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
| | - Mo Xian
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China.
| | - Huizhou Liu
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China.
| |
Collapse
|
21
|
Armato C, Ahmed D, Agostino V, Traversi D, Degan R, Tommasi T, Margaria V, Sacco A, Gilli G, Quaglio M, Saracco G, Schilirò T. Anodic microbial community analysis of microbial fuel cells based on enriched inoculum from freshwater sediment. Bioprocess Biosyst Eng 2019; 42:697-709. [PMID: 30694390 DOI: 10.1007/s00449-019-02074-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 01/11/2019] [Indexed: 01/30/2023]
Abstract
The characterization of anodic microbial communities is of great importance in the study of microbial fuel cells (MFCs). These kinds of devices mainly require a high abundance of anode respiring bacteria (ARB) in the anode chamber for optimal performance. This study evaluated the effect of different enrichments of environmental freshwater sediment samples used as inocula on microbial community structures in MFCs. Two enrichment media were compared: ferric citrate (FeC) enrichment, with the purpose of increasing the ARB percentage, and general enrichment (Gen). The microbial community dynamics were evaluated by polymerase chain reaction followed by denaturing gradient gel electrophoresis (PCR-DGGE) and real time polymerase chain reaction (qPCR). The enrichment effect was visible on the microbial community composition both during precultures and in anode MFCs. Both enrichment approaches affected microbial communities. Shannon diversity as well as β-Proteobacteria and γ-Proteobacteria percentages decreased during the enrichment steps, especially for FeC (p < 0.01). Our data suggest that FeC enrichment excessively reduced the diversity of the anode community, rather than promoting the proliferation of ARB, causing a condition that did not produce advantages in terms of system performance.
Collapse
Affiliation(s)
- Caterina Armato
- Department of Public Health and Pediatrics, University of Torino, Piazza Polonia 94, 10126, Turin, Italy.,Centre for Sustainable Future Technologies (CSFT@PoliTo), Istituto Italiano di Tecnologia, Turin, Italy
| | - Daniyal Ahmed
- Centre for Sustainable Future Technologies (CSFT@PoliTo), Istituto Italiano di Tecnologia, Turin, Italy.,Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
| | - Valeria Agostino
- Centre for Sustainable Future Technologies (CSFT@PoliTo), Istituto Italiano di Tecnologia, Turin, Italy.,Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
| | - Deborah Traversi
- Department of Public Health and Pediatrics, University of Torino, Piazza Polonia 94, 10126, Turin, Italy
| | - Raffaella Degan
- Department of Public Health and Pediatrics, University of Torino, Piazza Polonia 94, 10126, Turin, Italy
| | - Tonia Tommasi
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
| | - Valentina Margaria
- Centre for Sustainable Future Technologies (CSFT@PoliTo), Istituto Italiano di Tecnologia, Turin, Italy
| | - Adriano Sacco
- Centre for Sustainable Future Technologies (CSFT@PoliTo), Istituto Italiano di Tecnologia, Turin, Italy
| | - Giorgio Gilli
- Department of Public Health and Pediatrics, University of Torino, Piazza Polonia 94, 10126, Turin, Italy
| | - Marzia Quaglio
- Centre for Sustainable Future Technologies (CSFT@PoliTo), Istituto Italiano di Tecnologia, Turin, Italy
| | - Guido Saracco
- Centre for Sustainable Future Technologies (CSFT@PoliTo), Istituto Italiano di Tecnologia, Turin, Italy
| | - Tiziana Schilirò
- Department of Public Health and Pediatrics, University of Torino, Piazza Polonia 94, 10126, Turin, Italy.
| |
Collapse
|
22
|
Pepè Sciarria T, Arioli S, Gargari G, Mora D, Adani F. Monitoring microbial communities' dynamics during the start-up of microbial fuel cells by high-throughput screening techniques. ACTA ACUST UNITED AC 2019; 21:e00310. [PMID: 30805299 PMCID: PMC6374581 DOI: 10.1016/j.btre.2019.e00310] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 01/08/2019] [Accepted: 01/17/2019] [Indexed: 12/30/2022]
Abstract
Microbial Electrochemical Technologies are based on the use of electrochemically active microorganisms that can carry out extracellular electron transfer to an electrode while they are oxidizing the organic compounds. The dynamics and changes of the bacterial community in the anode biofilm and planktonic broth of an acetate fed batch single chamber air cathode MFC have been studied by combing flow-cytometry and Illumina sequencing techniques. At the beginning of the test, from 0 h to 70 h, microbial planktonic communities changed from four groups to two groups, as revealed by DNA content, and from three groups to one group based on the cell membrane polarization revealed by a DiOC6(3) probe. Between 4th day and 13th day, microbial communities changed from one group to a maximum of three groups, monitoring DNA content, and from one group to two based on the cell membrane polarization. The 16S rDNA gene profiling confirmed the shift in microbial communities, with Acinetobacter (39.34%), Azospirillum (27.66%), Arcobacter (4.17%) and Comamonas (2.62%) being the most abundant genera at the beginning of MFC activation. After 70 h the main genera detected were Azospirillum (46.42%), Acinetobacter (34.66%), Enterococcus (2.32%), Dysgonomonas (2.14%). Data obtained have shown that flow cytometry and illumina sequencing are useful tools to monitor "online" the changes in microbial communities during the MFCs start-up and the increase of Azospirillum and Acinetobacter genera is in good agreement with the MFC voltage generation. Moreover, monitoring planktonic populations, instead of the less accessible anode biofilm, was in good agreement with the evolution of MFC voltage.
Collapse
Affiliation(s)
- Tommy Pepè Sciarria
- Gruppo Ricicla, Department of Agriculture and Environmental Science, University of Milan, Milano, Italy
| | - Stefania Arioli
- Department of Food Environmental and Nutritional Sciences, University of Milan, Milano, Italy
| | - Giorgio Gargari
- Department of Food Environmental and Nutritional Sciences, University of Milan, Milano, Italy
| | - Diego Mora
- Department of Food Environmental and Nutritional Sciences, University of Milan, Milano, Italy
| | - Fabrizio Adani
- Gruppo Ricicla, Department of Agriculture and Environmental Science, University of Milan, Milano, Italy
| |
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
|
Pasternak G, Greenman J, Ieropoulos I. Dynamic evolution of anodic biofilm when maturing under different external resistive loads in microbial fuel cells. Electrochemical perspective. JOURNAL OF POWER SOURCES 2018; 400:392-401. [PMID: 30739982 PMCID: PMC6358148 DOI: 10.1016/j.jpowsour.2018.08.031] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Appropriate inoculation and maturation may be crucial for shortening the startup time and maximising power output of Microbial Fuel Cells (MFCs), whilst ensuring stable operation. In this study we explore the relationship between electrochemical parameters of MFCs matured under different external resistance (Rext) values (50 Ω - 10 kΩ) using non-synthetic fuel (human urine). Maturing the biofilm under the lower selected Rext results in improved power performance and lowest internal resistance (Rint), whereas using higher Rext results in increased ohmic losses and inferior performance. When the optimal load is applied to the MFCs following maturity, dependence of microbial activity on original Rext values does not change, suggesting an irreversible effect on the biofilm, within the timeframe of the reported experiments. Biofilm microarchitecture is affected by Rext and plays an important role in MFC efficiency. Presence of water channels, EPS and precipitated salts is distinctive for higher Rext and open circuit MFCs. Correlation analysis reveals that the biofilm changes most dynamically in the first 5 weeks of operation and that fixed Rext lefts an electrochemical effect on biofilm performance. Therefore, the initial conditions of the biofilm development can affect its long-term structure, properties and activity.
Collapse
Affiliation(s)
- Grzegorz Pasternak
- Bristol BioEnergy Centre, Bristol Robotics Laboratory, Coldharbour Lane, BS16 1QY Bristol, UK
- Faculty of Chemistry, Wrocław University of Science and Technology, Wyb. Wyspiańskiego 27, 50-370, Wrocław, Poland
- Corresponding author. Bristol BioEnergy Centre, Bristol Robotics Laboratory, Coldharbour Lane, BS16 1QY Bristol, UK.
| | - John Greenman
- Bristol BioEnergy Centre, Bristol Robotics Laboratory, Coldharbour Lane, BS16 1QY Bristol, UK
| | - Ioannis Ieropoulos
- Bristol BioEnergy Centre, Bristol Robotics Laboratory, Coldharbour Lane, BS16 1QY Bristol, UK
- Corresponding author.
| |
Collapse
|
25
|
Toczyłowska-Mamińska R, Szymona K, Kloch M. Bioelectricity production from wood hydrothermal-treatment wastewater: Enhanced power generation in MFC-fed mixed wastewaters. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 634:586-594. [PMID: 29635201 DOI: 10.1016/j.scitotenv.2018.04.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 04/01/2018] [Accepted: 04/02/2018] [Indexed: 06/08/2023]
Abstract
Electrogenic microorganisms are the heart of microbial fuel cell (MFC) systems that enable the conversion of waste into bioelectricity. Bacteria able to generate current, found in various natural and anthropogenic environments, need simple substrates such as acetate or glucose. Complex substrates are utilized by bacterial consortia made up of strains that exhibit a wide range of enzymatic and metabolic activity that determines the type of substrate they are able to degrade. The characteristics of the environment that a bacterial consortium develops in strongly affect the consortium's species composition and electrogenic potential. This study presents the first attempt to use industrial raw wastewater from the hydrothermal treatment of wood (WHTW) as a substrate and a source of bacterial consortia for MFC, so that such wastewater could simultaneously be treated and produce bioelectricity. The power generated in MFCs fed with WHTW was enhanced remarkably from 70 to 360mW/m2 when municipal wastewater was introduced into the reactor. An analysis of the bacterial composition of these two types of wastewater revealed that the WHTW was dominated by the genera Thermoanaerobacterium and Paenibacillus while in the biofilm developed in the anode the main genera were Hydrogenophilus and Anaerobaculum. It has been shown for the first time that highly polluted wood industry wastewater may be effectively treated in MFC systems and the use of appropriate bacterial consortium may result in enhancing power generation accompanying wastewater treatment.
Collapse
Affiliation(s)
| | - Karolina Szymona
- Warsaw University of Life Sciences, Faculty of Wood Technology, 159 Nowoursynowska St, Warsaw, Poland
| | - Monika Kloch
- Warsaw University of Life Sciences, Faculty of Wood Technology, 159 Nowoursynowska St, Warsaw, Poland
| |
Collapse
|
26
|
Revelo Romo DM, Hurtado Gutiérrez NH, Ruiz Pazos JO, Pabón Figueroa LV, Ordóñez Ordóñez LA. Bacterial diversity in the Cr(VI) reducing biocathode of a Microbial Fuel Cell with salt bridge. Rev Argent Microbiol 2018; 51:110-118. [PMID: 30144991 DOI: 10.1016/j.ram.2018.04.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 02/16/2018] [Accepted: 04/07/2018] [Indexed: 02/04/2023] Open
Abstract
Although Cr(VI)-reducing and/or tolerant microorganisms have been investigated, there is no detailed information on the composition of the microbial community of the biocathode microbial fuel cell for Cr(VI) reduction. In this investigation, the bacterial diversity of a biocathode was analyzed using 454 pyrosequencing of the 16S rRNA gene. It was found that most bacteria belonged to phylum Proteobacteria (78.8%), Firmicutes (7.9%), Actinobacteria (6.6%) and Bacteroidetes (5.5%), commonly present in environments contaminated with Cr(VI). The dominance of the genus Pseudomonas (34.87%), followed by the genera Stenotrophomonas (5.8%), Shinella (4%), Papillibacter (3.96%), Brevundimonas (3.91%), Pseudochrobactrum (3.54%), Ochrobactrum (3.49%), Hydrogenophaga (2.88%), Rhodococcus (2.88%), Fluviicola (2.35%), and Alcaligenes (2.3%), was found. It is emphasized that some genera have not previously been associated with Cr(VI) reduction. This biocathode from waters contaminated with tannery effluents was able to remove Cr(VI) (97.83%) in the cathodic chamber. Additionally, through use of anaerobic sludge in the anodic chamber, the removal of 76.6% of organic matter (glucose) from synthetic waste water was achieved. In this study, an efficient biocathode for the reduction of Cr(VI) with future use in bioremediation, was characterized.
Collapse
Affiliation(s)
- Dolly Margot Revelo Romo
- Biology Department, Universidad de Nariño, Calle 18 Carrera 50, Campus Torobajo, San Juan de Pasto, Nariño, Colombia.
| | | | - Jaime Orlando Ruiz Pazos
- Electrical Engineering Department, Universidad de Nariño, Calle 18 Carrera 50, Campus Torobajo, San Juan de Pasto, Nariño, Colombia
| | - Lizeth Vanessa Pabón Figueroa
- Biology Department, Universidad de Nariño, Calle 18 Carrera 50, Campus Torobajo, San Juan de Pasto, Nariño, Colombia
| | | |
Collapse
|
27
|
Kokko M, Epple S, Gescher J, Kerzenmacher S. Effects of wastewater constituents and operational conditions on the composition and dynamics of anodic microbial communities in bioelectrochemical systems. BIORESOURCE TECHNOLOGY 2018; 258:376-389. [PMID: 29548640 DOI: 10.1016/j.biortech.2018.01.090] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/17/2018] [Accepted: 01/19/2018] [Indexed: 06/08/2023]
Abstract
Over the last decade, there has been an ever-growing interest in bioelectrochemical systems (BES) as a sustainable technology enabling simultaneous wastewater treatment and biological production of, e.g. electricity, hydrogen, and further commodities. A key component of any BES degrading organic matter is the anode where electric current is biologically generated from the oxidation of organic compounds. The performance of BES depends on the interactions of the anodic microbial communities. To optimize the operational parameters and process design of BES a better comprehension of the microbial community dynamics and interactions at the anode is required. This paper reviews the abundance of different microorganisms in anodic biofilms and discusses their roles and possible side reactions with respect to their implications on the performance of BES utilizing wastewaters. The most important operational parameters affecting anodic microbial communities grown with wastewaters are highlighted and guidelines for controlling the composition of microbial communities are given.
Collapse
Affiliation(s)
- Marika Kokko
- Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; Laboratory of Chemistry and Bioengineering, Tampere University of Technology, Tampere, Finland
| | - Stefanie Epple
- Institute for Applied Biosciences, Department of Applied Biology, Karlsruhe Institute of Technology, Fritz-Haber-Weg 2, 76131 Karlsruhe, Germany
| | - Johannes Gescher
- Institute for Applied Biosciences, Department of Applied Biology, Karlsruhe Institute of Technology, Fritz-Haber-Weg 2, 76131 Karlsruhe, Germany
| | - Sven Kerzenmacher
- Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; Center for Environmental Research and Sustainable Technology (UFT), University of Bremen, Leobener Strasse 6, 28359 Bremen, Germany.
| |
Collapse
|
28
|
Zou S, He Z. Efficiently "pumping out" value-added resources from wastewater by bioelectrochemical systems: A review from energy perspectives. WATER RESEARCH 2018; 131:62-73. [PMID: 29274548 DOI: 10.1016/j.watres.2017.12.026] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 12/11/2017] [Accepted: 12/12/2017] [Indexed: 06/07/2023]
Abstract
Bioelectrochemical systems (BES) can accomplish simultaneous wastewater treatment and resource recovery via interactions between microbes and electrodes. Often deemed as "energy efficient" technologies, BES have not been well evaluated for their energy performance, such as energy production and consumption. In this work, we have conducted a review and analysis of energy balance in BES with parameters like normalized energy recovery, specific energy consumption, and net energy production. Several BES representatives based on their functions were selected for analysis, including direct electricity generation in microbial fuel cells, hydrogen production in microbial electrolysis cells, nitrogen recovery in BES, chemical production in microbial electrosynthesis cells, and desalination in microbial desalination cells. Energy performance was normalized to water volume (kWh m-3), organic removal (kWh kg COD-1), nitrogen recovery (kWh kg N-1), chemical production (kWh kg-1), or removed salt during desalination (kWh kg-1). The key operating factors such as pumping system (recirculation/feeding pumps) and external power supply were discussed for their effects on energy performance. This is an in-depth analysis of energy performance of various BES and expected to encourage more thinking, analysis, and presentation of energy data towards appropriate research and development of BES technology for resource recovery from wastewater.
Collapse
Affiliation(s)
- Shiqiang Zou
- Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
| | - Zhen He
- Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA.
| |
Collapse
|
29
|
|
30
|
Park Y, Cho H, Yu J, Min B, Kim HS, Kim BG, Lee T. Response of microbial community structure to pre-acclimation strategies in microbial fuel cells for domestic wastewater treatment. BIORESOURCE TECHNOLOGY 2017; 233:176-183. [PMID: 28279910 DOI: 10.1016/j.biortech.2017.02.101] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 02/21/2017] [Accepted: 02/22/2017] [Indexed: 06/06/2023]
Abstract
Microbial community structures and performance of air-cathode microbial fuel cells (MFCs) inoculated with activated sludge from domestic wastewater were investigated to evaluate the effects of three substrate pre-acclimation strategies: 1, serial pre-acclimation with acetate and glucose before supplying domestic wastewater; 2, one step pre-acclimation with acetate before supplying domestic wastewater; and 3, direct supply of domestic wastewater without any pre-acclimation. Strategy 1 showed much higher current generation (1.4mA) and Coulombic efficiency (33.5%) than strategies 2 (0.7mA and 9.4%) and 3 (0.9mA and 10.3%). Pyrosequencing showed that microbial communities were significantly affected by pre-acclimation strategy. Although Proteobacteria was the dominant phylum with all strategies, Actinobacteria was abundant when MFCs were pre-acclimated with glucose after acetate. Not only anode-respiring bacteria (ARB) in the genus Geobacter but also non-ARB belonging to the family Anaerolinaceae seemed to play important roles in air-cathode MFCs to produce electricity from domestic wastewater.
Collapse
Affiliation(s)
- Younghyun Park
- Department of Civil and Environmental Engineering, Pusan National University, Busan 609-735, Republic of Korea
| | - Hyunwoo Cho
- Department of Civil and Environmental Engineering, Pusan National University, Busan 609-735, Republic of Korea
| | - Jaechul Yu
- Department of Civil and Environmental Engineering, Pusan National University, Busan 609-735, Republic of Korea
| | - Booki Min
- Department of Environmental Science and Engineering, Kyung Hee University, 1 Seocheon-dong, Yongin-si, Gyeonggi-do 446-701, Republic of Korea
| | - Hong Suck Kim
- The MFC Research and Business Development (R&BD) Center, K-water Institute, Jeonmin-Dong, Yuseong-Gu, Daejeon 305-730, Republic of Korea
| | - Byung Goon Kim
- The MFC Research and Business Development (R&BD) Center, K-water Institute, Jeonmin-Dong, Yuseong-Gu, Daejeon 305-730, Republic of Korea
| | - Taeho Lee
- Department of Civil and Environmental Engineering, Pusan National University, Busan 609-735, Republic of Korea.
| |
Collapse
|
31
|
Logroño W, Pérez M, Urquizo G, Kadier A, Echeverría M, Recalde C, Rákhely G. Single chamber microbial fuel cell (SCMFC) with a cathodic microalgal biofilm: A preliminary assessment of the generation of bioelectricity and biodegradation of real dye textile wastewater. CHEMOSPHERE 2017; 176:378-388. [PMID: 28278426 DOI: 10.1016/j.chemosphere.2017.02.099] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 02/15/2017] [Accepted: 02/19/2017] [Indexed: 06/06/2023]
Abstract
An air exposed single-chamber microbial fuel cell (SCMFC) using microalgal biocathodes was designed. The reactors were tested for the simultaneous biodegradation of real dye textile wastewater (RTW) and the generation of bioelectricity. The results of digital image processing revealed a maximum coverage area on the biocathodes by microalgal cells of 42%. The atmospheric and diffused CO2 could enable good algal growth and its immobilized operation on the cathode electrode. The biocathode-SCMFCs outperformed an open circuit voltage (OCV), which was 18%-43% higher than the control. Furthermore, the maximum volumetric power density achieved was 123.2 ± 27.5 mW m-3. The system was suitable for the treatment of RTW and the removal/decrease of COD, colour and heavy metals. High removal efficiencies were observed in the SCMFCs for Zn (98%) and COD (92-98%), but the removal efficiencies were considerably lower for Cr (54-80%). We observed that this single chamber MFC simplifies a double chamber system. The bioelectrochemical performance was relatively low, but the treatment capacity of the system seems encouraging in contrast to previous studies. A proof-of-concept experiment demonstrated that the microalgal biocathode could operate in air exposed conditions, seems to be a promising alternative to a Pt cathode and is an efficient and cost-effective approach to improve the performance of single chamber MFCs.
Collapse
Affiliation(s)
- Washington Logroño
- Centro de Investigación de Energías Alternativas y Ambiente, Escuela Superior Politécnica de Chimborazo, Chimborazo, EC060155, Ecuador; Department of Biotechnology, University of Szeged, H-6726, Szeged, Hungary.
| | - Mario Pérez
- Centro de Investigación de Energías Alternativas y Ambiente, Escuela Superior Politécnica de Chimborazo, Chimborazo, EC060155, Ecuador
| | - Gladys Urquizo
- Centro de Investigación de Energías Alternativas y Ambiente, Escuela Superior Politécnica de Chimborazo, Chimborazo, EC060155, Ecuador
| | - Abudukeremu Kadier
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, National University of Malaysia (UKM), 43600, UKM Bangi, Selangor, Malaysia
| | - Magdy Echeverría
- Centro de Investigación de Energías Alternativas y Ambiente, Escuela Superior Politécnica de Chimborazo, Chimborazo, EC060155, Ecuador
| | - Celso Recalde
- Centro de Investigación de Energías Alternativas y Ambiente, Escuela Superior Politécnica de Chimborazo, Chimborazo, EC060155, Ecuador; Instituto de Ciencia, Innovación, Tecnología y Saberes, Universidad Nacional de Chimborazo, Riobamba, Ecuador
| | - Gábor Rákhely
- Department of Biotechnology, University of Szeged, H-6726, Szeged, Hungary; Institute of Biophysics, Biological Research Centre Hungarian Academy of Sciences, Szeged, Hungary
| |
Collapse
|
32
|
Tian Y, Mei X, Liang Q, Wu D, Ren N, Xing D. Biological degradation of potato pulp waste and microbial community structure in microbial fuel cells. RSC Adv 2017. [DOI: 10.1039/c6ra27385h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The syntrophic interactions between polysaccharide-degrading bacteria and exoelectrogens drove simultaneous alternative energy production and degradation of potato pulp waste in microbial fuel cells.
Collapse
Affiliation(s)
- Yushi Tian
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090
- P. R. China
| | - Xiaoxue Mei
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090
- P. R. China
| | - Qing Liang
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090
- P. R. China
| | - Di Wu
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090
- P. R. China
- College of Life Science
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090
- P. R. China
| | - Defeng Xing
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090
- P. R. China
| |
Collapse
|
33
|
Carbon quantum dots shuttle electrons to the anode of a microbial fuel cell. 3 Biotech 2016; 6:228. [PMID: 28330300 PMCID: PMC5080269 DOI: 10.1007/s13205-016-0552-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 10/19/2016] [Indexed: 11/12/2022] Open
Abstract
Electrodes based on graphite, graphene, and carbon nanomaterials have been used in the anode chamber of microbial fuel cells (MFCs). Carbon quantum dots (C-dots) are a class of versatile nanomaterials hitherto not reported in MFCs. C-dots previously synthesized from coconut husk were reported to possess hydroxyl and carboxyl functional groups on their surface. The presence of these functional groups on a carbon matrix conferred on the C-dots the ability to conduct and transfer electrons. Formation of silver nanoparticles from silver nitrate upon addition of C-dots confirmed their reducing ability. DREAM assay using a mixed microbial culture containing C-dots showed a 172% increase in electron transfer activity and thus confirmed the involvement of C-dots in supplementing redox activity of a microbial culture. Addition of C-dots as a suspension in the anode chamber of an MFC resulted in a 22.5% enhancement in maximum power density. C-dots showed better performance as electron shuttles than methylene blue, a conventional electron shuttle used in MFCs.
Collapse
|
34
|
Hodgson DM, Smith A, Dahale S, Stratford JP, Li JV, Grüning A, Bushell ME, Marchesi JR, Avignone Rossa C. Segregation of the Anodic Microbial Communities in a Microbial Fuel Cell Cascade. Front Microbiol 2016; 7:699. [PMID: 27242723 PMCID: PMC4863660 DOI: 10.3389/fmicb.2016.00699] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Accepted: 04/26/2016] [Indexed: 11/13/2022] Open
Abstract
Metabolic interactions within microbial communities are essential for the efficient degradation of complex organic compounds, and underpin natural phenomena driven by microorganisms, such as the recycling of carbon-, nitrogen-, and sulfur-containing molecules. These metabolic interactions ultimately determine the function, activity and stability of the community, and therefore their understanding would be essential to steer processes where microbial communities are involved. This is exploited in the design of microbial fuel cells (MFCs), bioelectrochemical devices that convert the chemical energy present in substrates into electrical energy through the metabolic activity of microorganisms, either single species or communities. In this work, we analyzed the evolution of the microbial community structure in a cascade of MFCs inoculated with an anaerobic microbial community and continuously fed with a complex medium. The analysis of the composition of the anodic communities revealed the establishment of different communities in the anodes of the hydraulically connected MFCs, with a decrease in the abundance of fermentative taxa and a concurrent increase in respiratory taxa along the cascade. The analysis of the metabolites in the anodic suspension showed a metabolic shift between the first and last MFC, confirming the segregation of the anodic communities. Those results suggest a metabolic interaction mechanism between the predominant fermentative bacteria at the first stages of the cascade and the anaerobic respiratory electrogenic population in the latter stages, which is reflected in the observed increase in power output. We show that our experimental system represents an ideal platform for optimization of processes where the degradation of complex substrates is involved, as well as a potential tool for the study of metabolic interactions in complex microbial communities.
Collapse
Affiliation(s)
- Douglas M Hodgson
- Department of Microbial and Cellular Sciences, University of Surrey Guildford, UK
| | - Ann Smith
- Cardiff School of Biosciences, Cardiff University Cardiff, UK
| | - Sonal Dahale
- Department of Microbial and Cellular Sciences, University of Surrey Guildford, UK
| | - James P Stratford
- Warwick Integrative Synthetic Biology Centre, University of Warwick Coventry, UK
| | - Jia V Li
- Centre for Digestive and Gut Health, Department of Surgery and Cancer, Imperial College LondonLondon, UK; Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College LondonLondon, UK
| | - André Grüning
- Department of Computer Science, University of Surrey Guildford, UK
| | - Michael E Bushell
- Department of Microbial and Cellular Sciences, University of Surrey Guildford, UK
| | - Julian R Marchesi
- Cardiff School of Biosciences, Cardiff UniversityCardiff, UK; Centre for Digestive and Gut Health, Department of Surgery and Cancer, Imperial College LondonLondon, UK
| | - C Avignone Rossa
- Department of Microbial and Cellular Sciences, University of Surrey Guildford, UK
| |
Collapse
|
35
|
Xiao Y, Zheng Y, Wu S, Zhang EH, Chen Z, Liang P, Huang X, Yang ZH, Ng IS, Chen BY, Zhao F. Pyrosequencing Reveals a Core Community of Anodic Bacterial Biofilms in Bioelectrochemical Systems from China. Front Microbiol 2015; 6:1410. [PMID: 26733958 PMCID: PMC4679932 DOI: 10.3389/fmicb.2015.01410] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 11/27/2015] [Indexed: 01/31/2023] Open
Abstract
Bioelectrochemical systems (BESs) are promising technologies for energy and product recovery coupled with wastewater treatment, and the core microbial community in electrochemically active biofilm in BESs remains controversy. In the present study, 7 anodic communities from 6 bioelectrochemical systems in 4 labs in southeast, north and south-central of China are explored by 454 pyrosequencing. A total of 251,225 effective sequences are obtained for 7 electrochemically active biofilm samples at 3% cutoff level. While Alpha-, Beta-, and Gamma-proteobacteria are the most abundant classes (averaging 16.0-17.7%), Bacteroidia and Clostridia are the two sub-dominant and commonly shared classes. Six commonly shared genera i.e., Azospira, Azospirillum, Acinetobacter, Bacteroides, Geobacter, Pseudomonas, and Rhodopseudomonas dominate the electrochemically active communities and are defined as core genera. A total of 25 OTUs with average relative abundance >0.5% were selected and designated as core OTUs, and some species relating to these OTUs have been reported electrochemically active. Furthermore, cyclic voltammetry and chronoamperometry tests show that two strains from Acinetobacter guillouiae and Stappia indica, bacteria relate to two core OTUs, are electrochemically active. Using randomly selected bioelectrochemical systems, the study has presented extremely diverse bacterial communities in anodic biofilms, though, we still can suggest some potentially microbes for investigating the electrochemical mechanisms in bioelectrochemical systems.
Collapse
Affiliation(s)
- Yong Xiao
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of SciencesXiamen, China
| | - Yue Zheng
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of SciencesXiamen, China
- College of Environmental Science and Engineering, Hunan UniversityChangsha, China
| | - Song Wu
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of SciencesXiamen, China
- College of Environmental Science and Engineering, Hunan UniversityChangsha, China
| | - En-Hua Zhang
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of SciencesXiamen, China
- College of Environmental Science and Engineering, Hunan UniversityChangsha, China
| | - Zheng Chen
- Research Center for Eco-Environmental Sciences, Chinese Academy of SciencesBeijing, China
| | - Peng Liang
- School of Environment, Tsinghua UniversityBeijing, China
| | - Xia Huang
- School of Environment, Tsinghua UniversityBeijing, China
| | - Zhao-Hui Yang
- College of Environmental Science and Engineering, Hunan UniversityChangsha, China
| | - I-Son Ng
- Department of Chemical Engineering, National Cheng Kung UniversityTainan, Taiwan
| | - Bor-Yann Chen
- Department of Chemical and Materials Engineering, National I-Lan UniversityI-Lan, Taiwan
| | - Feng Zhao
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of SciencesXiamen, China
| |
Collapse
|
36
|
Electricity generation from organic fraction of municipal solid wastes in tubular microbial fuel cell. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.10.042] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
37
|
Li Y, Wang C, Zhang W, Wang P, Niu L, Hou J, Wang J, Wang L. Modeling the Effects of Hydrodynamic Regimes on Microbial Communities within Fluvial Biofilms: Combining Deterministic and Stochastic Processes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:12869-12878. [PMID: 26437120 DOI: 10.1021/acs.est.5b03277] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
To fully understand the effects of hydrodynamics on a microbial community, the roles of niche-based and neutral processes must be considered in a mathematical model. To this end, a two-dimensional model combining mechanisms of immigration, dispersal, and niche differentiation was first established to describe the effects of hydrodynamics on bacterial communities within fluvial biofilms. Deterministic factors of the model were identified via the calculation of Spearman's rank correlation coefficients between parameters of hydrodynamics and the bacterial community. It was found that turbulent kinetic energy and turbulent intensity were considered as a set of reasonable predictors of community composition, whereas flow velocity and turbulent intensity can be combined together to predict biofilm bacterial biomass. According to the modeling result, the bacterial community could get its favorable assembly condition with a flow velocity ranging from 0.041 to 0.061 m/s. However, the driving force for biofilm community assembly changed with the local hydrodynamics. Individuals reproduction within the biofilm was the main driving force with flow velocity less than 0.05 m/s, while cell migration played a much more important role with velocity larger than 0.05 m/s. The developed model could be considered as a useful tool for improving the technologies of water environment protection and remediation.
Collapse
Affiliation(s)
- Yi Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University , Nanjing, Jiangsu 210098, P.R. China
| | - Chao Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University , Nanjing, Jiangsu 210098, P.R. China
| | - Wenlong Zhang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University , Nanjing, Jiangsu 210098, P.R. China
| | - Peifang Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University , Nanjing, Jiangsu 210098, P.R. China
| | - Lihua Niu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University , Nanjing, Jiangsu 210098, P.R. China
| | - Jun Hou
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University , Nanjing, Jiangsu 210098, P.R. China
| | - Jing Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University , Nanjing, Jiangsu 210098, P.R. China
| | - Linqiong Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University , Nanjing, Jiangsu 210098, P.R. China
| |
Collapse
|
38
|
Winfield J, Chambers LD, Rossiter J, Stinchcombe A, Walter XA, Greenman J, Ieropoulos I. Fade to Green: A Biodegradable Stack of Microbial Fuel Cells. CHEMSUSCHEM 2015. [PMID: 26212495 DOI: 10.1002/cssc.201500431] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The focus of this study is the development of biodegradable microbial fuel cells (MFCs) able to produce useful power. Reactors with an 8 mL chamber volume were designed using all biodegradable products: polylactic acid for the frames, natural rubber as the cation-exchange membrane and egg-based, open-to-air cathodes coated with a lanolin gas diffusion layer. Forty MFCs were operated in various configurations. When fed with urine, the biodegradable stack was able to power appliances and was still operational after six months. One useful application for this truly sustainable MFC technology includes onboard power supplies for biodegradable robotic systems. After operation in remote ecological locations, these could degrade harmlessly into the surroundings to leave no trace when the mission is complete.
Collapse
Affiliation(s)
- Jonathan Winfield
- Bristol BioEnergy Centre, University of the West of England, Bristol (UK)
| | - Lily D Chambers
- Bristol Robotics Laboratory, University of Bristol, Bristol (UK)
| | | | - Andrew Stinchcombe
- Bristol BioEnergy Centre, University of the West of England, Bristol (UK)
| | - X Alexis Walter
- Bristol BioEnergy Centre, University of the West of England, Bristol (UK)
| | - John Greenman
- Microbiology Department, University of the West of England, Bristol (UK)
| | - Ioannis Ieropoulos
- Bristol BioEnergy Centre, University of the West of England, Bristol (UK)
| |
Collapse
|
39
|
Grüning A, Beecroft NJ, Avignone-Rossa C. Low-potential respirators support electricity production in microbial fuel cells. MICROBIAL ECOLOGY 2015; 70:266-273. [PMID: 25388758 DOI: 10.1007/s00248-014-0518-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 10/09/2014] [Indexed: 06/04/2023]
Abstract
In this paper, we analyse how electric power production in microbial fuel cells (MFCs) depends on the composition of the anodic biofilm in terms of metabolic capabilities of identified sets of species. MFCs are a promising technology for organic waste treatment and sustainable bioelectricity production. Inoculated with natural communities, they present a complex microbial ecosystem with syntrophic interactions between microbes with different metabolic capabilities. Our results demonstrate that low-potential anaerobic respirators--that is those that are able to use terminal electron acceptors with a low redox potential--are important for good power production. Our results also confirm that community metabolism in MFCs with natural inoculum and fermentable feedstock is a two-stage system with fermentation followed by anode respiration.
Collapse
Affiliation(s)
- André Grüning
- Faculty of Engineering and Physical Sciences, Department of Computing Science, University of Surrey, Guildford, GU72XH, UK,
| | | | | |
Collapse
|
40
|
Daghio M, Gandolfi I, Bestetti G, Franzetti A, Guerrini E, Cristiani P. Anodic and cathodic microbial communities in single chamber microbial fuel cells. N Biotechnol 2015; 32:79-84. [DOI: 10.1016/j.nbt.2014.09.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 09/16/2014] [Accepted: 09/28/2014] [Indexed: 12/26/2022]
|
41
|
Stratford JP, Beecroft NJ, Slade RCT, Grüning A, Avignone-Rossa C. Anodic microbial community diversity as a predictor of the power output of microbial fuel cells. BIORESOURCE TECHNOLOGY 2014; 156:84-91. [PMID: 24491292 DOI: 10.1016/j.biortech.2014.01.041] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2013] [Revised: 01/08/2014] [Accepted: 01/12/2014] [Indexed: 06/03/2023]
Abstract
The relationship between the diversity of mixed-species microbial consortia and their electrogenic potential in the anodes of microbial fuel cells was examined using different diversity measures as predictors. Identical microbial fuel cells were sampled at multiple time-points. Biofilm and suspension communities were analysed by denaturing gradient gel electrophoresis to calculate the number and relative abundance of species. Shannon and Simpson indices and richness were examined for association with power using bivariate and multiple linear regression, with biofilm DNA as an additional variable. In simple bivariate regressions, the correlation of Shannon diversity of the biofilm and power is stronger (r=0.65, p=0.001) than between power and richness (r=0.39, p=0.076), or between power and the Simpson index (r=0.5, p=0.018). Using Shannon diversity and biofilm DNA as predictors of power, a regression model can be constructed (r=0.73, p<0.001). Ecological parameters such as the Shannon index are predictive of the electrogenic potential of microbial communities.
Collapse
Affiliation(s)
- James P Stratford
- Department of Microbial and Cellular Sciences, University of Surrey, Guildford, Surrey GU2 7XH, UK
| | - Nelli J Beecroft
- Department of Microbial and Cellular Sciences, University of Surrey, Guildford, Surrey GU2 7XH, UK
| | - Robert C T Slade
- Department of Chemistry, University of Surrey, Guildford, Surrey GU2 7XH, UK
| | - André Grüning
- Department of Computing, University of Surrey, Guildford, Surrey GU2 7XH, UK
| | - Claudio Avignone-Rossa
- Department of Microbial and Cellular Sciences, University of Surrey, Guildford, Surrey GU2 7XH, UK.
| |
Collapse
|
42
|
Wang Z, Lee T, Lim B, Choi C, Park J. Microbial community structures differentiated in a single-chamber air-cathode microbial fuel cell fueled with rice straw hydrolysate. BIOTECHNOLOGY FOR BIOFUELS 2014; 7:9. [PMID: 24433535 PMCID: PMC3896841 DOI: 10.1186/1754-6834-7-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 01/08/2014] [Indexed: 05/22/2023]
Abstract
BACKGROUND The microbial fuel cell represents a novel technology to simultaneously generate electric power and treat wastewater. Both pure organic matter and real wastewater can be used as fuel to generate electric power and the substrate type can influence the microbial community structure. In the present study, rice straw, an important feedstock source in the world, was used as fuel after pretreatment with diluted acid method for a microbial fuel cell to obtain electric power. Moreover, the microbial community structures of anodic and cathodic biofilm and planktonic culturewere analyzed and compared to reveal the effect of niche on microbial community structure. RESULTS The microbial fuel cell produced a maximum power density of 137.6 ± 15.5 mW/m2 at a COD concentration of 400 mg/L, which was further increased to 293.33 ± 7.89 mW/m2 through adjusting the electrolyte conductivity from 5.6 mS/cm to 17 mS/cm. Microbial community analysis showed reduction of the microbial diversities of the anodic biofilm and planktonic culture, whereas diversity of the cathodic biofilm was increased. Planktonic microbial communities were clustered closer to the anodic microbial communities compared to the cathodic biofilm. The differentiation in microbial community structure of the samples was caused by minor portion of the genus. The three samples shared the same predominant phylum of Proteobacteria. The abundance of exoelectrogenic genus was increased with Desulfobulbus as the shared most abundant genus; while the most abundant exoelectrogenic genus of Clostridium in the inoculum was reduced. Sulfate reducing bacteria accounted for large relative abundance in all the samples, whereas the relative abundance varied in different samples. CONCLUSION The results demonstrated that rice straw hydrolysate can be used as fuel for microbial fuel cells; microbial community structure differentiated depending on niches after microbial fuel cell operation; exoelectrogens were enriched; sulfate from rice straw hydrolysate might be responsible for the large relative abundance of sulfate reducing bacteria.
Collapse
Affiliation(s)
- Zejie Wang
- Department of Environmental Engineering, Daejeon University, Daejeon, South Korea
- Institute of Urban Environment, Chinese Academy of Sciences, Urban, China
| | - Taekwon Lee
- School of Civil and Environmental Engineering, Yonsei University, Seoul, South Korea
- Department of Microbiology and Ecosystem Science, University of Vienna, Vienna, Austria
| | - Bongsu Lim
- Department of Environmental Engineering, Daejeon University, Daejeon, South Korea
| | - Chansoo Choi
- Department of Applied Chemistry, Daejeon University, Daejeon, South Korea
| | - Joonhong Park
- School of Civil and Environmental Engineering, Yonsei University, Seoul, South Korea
| |
Collapse
|
43
|
Sciarria TP, Tenca A, D'Epifanio A, Mecheri B, Merlino G, Barbato M, Borin S, Licoccia S, Garavaglia V, Adani F. Using olive mill wastewater to improve performance in producing electricity from domestic wastewater by using single-chamber microbial fuel cell. BIORESOURCE TECHNOLOGY 2013; 147:246-253. [PMID: 23999258 DOI: 10.1016/j.biortech.2013.08.033] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 07/31/2013] [Accepted: 08/05/2013] [Indexed: 06/02/2023]
Abstract
Improving electricity generation from wastewater (DW) by using olive mill wastewater (OMW) was evaluated using single-chamber microbial fuel cells (MFC). Doing so single-chambers air cathode MFCs with platinum anode were fed with domestic wastewater (DW) alone and mixed with OMW at the ratio of 14:1 (w/w). MFCs fed with DW+OMW gave 0.38 V at 1 kΩ, while power density from polarization curve was of 124.6 mW m(-2). The process allowed a total reduction of TCOD and BOD5 of 60% and 69%, respectively, recovering the 29% of the coulombic efficiency. The maximum voltage obtained from MFC fed with DW+OMW was 2.9 times higher than that of cell fed with DW. DNA-fingerprinting showed high bacterial diversity for both experiments and the presence on anodes of exoelectrogenic bacteria, such as Geobacter spp. Electrodes selected peculiar consortia and, in particular, anodes of both experiments showed a similar specialization of microbial communities independently by feeding used.
Collapse
Affiliation(s)
- Tommy Pepè Sciarria
- RICICLA GROUP, Dipartimento di Scienze Agrarie e Ambientali: Produzione, Territorio, Agroenergia, Via Celoria 2, 20133 Milan, Italy; NAST Centre & Department of Chemical Science and Technology, University of Rome Tor Vergata, Rome, Italy
| | - Alberto Tenca
- RICICLA GROUP, Dipartimento di Scienze Agrarie e Ambientali: Produzione, Territorio, Agroenergia, Via Celoria 2, 20133 Milan, Italy
| | - Alessandra D'Epifanio
- NAST Centre & Department of Chemical Science and Technology, University of Rome Tor Vergata, Rome, Italy
| | - Barbara Mecheri
- NAST Centre & Department of Chemical Science and Technology, University of Rome Tor Vergata, Rome, Italy
| | - Giuseppe Merlino
- Department of Food Environmental and Nutritional Sciences (DEFENS), University of Milan, Celoria 2, 20133 Milan, Italy
| | - Marta Barbato
- Department of Food Environmental and Nutritional Sciences (DEFENS), University of Milan, Celoria 2, 20133 Milan, Italy
| | - Sara Borin
- Department of Food Environmental and Nutritional Sciences (DEFENS), University of Milan, Celoria 2, 20133 Milan, Italy
| | - Silvia Licoccia
- NAST Centre & Department of Chemical Science and Technology, University of Rome Tor Vergata, Rome, Italy
| | - Virgilio Garavaglia
- RICICLA GROUP, Dipartimento di Scienze Agrarie e Ambientali: Produzione, Territorio, Agroenergia, Via Celoria 2, 20133 Milan, Italy
| | - Fabrizio Adani
- RICICLA GROUP, Dipartimento di Scienze Agrarie e Ambientali: Produzione, Territorio, Agroenergia, Via Celoria 2, 20133 Milan, Italy.
| |
Collapse
|
44
|
Yusoff MZM, Hu A, Feng C, Maeda T, Shirai Y, Hassan MA, Yu CP. Influence of pretreated activated sludge for electricity generation in microbial fuel cell application. BIORESOURCE TECHNOLOGY 2013; 145:90-96. [PMID: 23566463 DOI: 10.1016/j.biortech.2013.03.003] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2012] [Revised: 02/28/2013] [Accepted: 03/02/2013] [Indexed: 06/02/2023]
Abstract
Influence of different pretreated sludge for electricity generation in microbial fuel cells (MFCs) was investigated in this study. Pre-treatment has shown significant improvement in MFC electricity productivity especially from microwave treated sludge. Higher COD reduction in the MFC has been revealed from microwave treated sludge with 55% for total and 85% for soluble COD, respectively. Nonetheless, longer ozonation treatment did not give additional advantage compared to the raw sludge. On the other hand, samples from anodes were analyzed using the 16S rRNA gene-based pyrosequencing technique for microbial community analysis. There was substantial difference in community compositions among MFCs fed with different pretreated sludge. Bacteroidetes was the abundant bacterial phylum dominated in anodes of higher productivity MFCs. These results demonstrate that using waste sludge as the substrate in MFCs could achieve both sludge reduction and electricity generation, and proper pre-treatment of sludge could improve the overall process performance.
Collapse
Affiliation(s)
- Mohd Zulkhairi Mohd Yusoff
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | | | | | | | | | | | | |
Collapse
|
45
|
Wang Z, Mei X, Ma J, Wu Z. Recent Advances in Microbial Fuel Cells Integrated with Sludge Treatment. Chem Eng Technol 2012. [DOI: 10.1002/ceat.201200132] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
46
|
Ieropoulos IA, Greenman J, Melhuish C, Horsfield I. Microbial fuel cells for robotics: energy autonomy through artificial symbiosis. CHEMSUSCHEM 2012; 5:1020-6. [PMID: 22674692 DOI: 10.1002/cssc.201200283] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The development of the microbial fuel cell (MFC) technology has seen an enormous growth over the last hundred years since its inception by Potter in 1911. The technology has reached a level of maturity that it is now considered to be a field in its own right with a growing scientific community. The highest level of activity has been recorded over the last decade and it is perhaps considered commonplace that MFCs are primarily suitable for stationary, passive wastewater treatment applications. Sceptics have certainly not considered MFCs as serious contenders in the race for developing renewable energy technologies. Yet this is the only type of alternative system that can convert organic waste-widely distributed around the globe-directly into electricity, and therefore, the only technology that will allow artificial agents to autonomously operate in a plethora of environments. This Minireview describes the history and current state-of-the-art regarding MFCs in robotics and their vital role in artificial symbiosis and autonomy. Furthermore, the article demonstrates how pursuing practical robotic applications can provide insights of the core MFC technology in general.
Collapse
Affiliation(s)
- Ioannis A Ieropoulos
- Bristol Robotics Laboratory, Department of Engineering, Design & Mathematics, University of the West of England, Bristol, T-Building, Frenchay Campus, BS16 1QY, Bristol, UK.
| | | | | | | |
Collapse
|