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Guadarrama-Pérez O, Moeller-Chávez GE, Bustos-Terrones V, Guillén-Garcés RA, Hernández-Romano J, Barragán-Trinidad M, Estrada-Arriaga EB, Guadarrama-Pérez VH. Identification of sugars as root exudates of the macrophyte species Juncus effusus and Philodendron cordatum in constructed wetland-microbial fuel cells during bioelectricity production. ENVIRONMENTAL TECHNOLOGY 2024; 45:716-730. [PMID: 36062824 DOI: 10.1080/09593330.2022.2121180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
Constructed wetland-microbial fuel cells (CW-MFCs) systems are a sustainable technology capable of producing bioelectricity and treating wastewater simultaneously. It is also possible to obtain bioelectricity from the photosynthetic substrates obtained by the rhizodeposition of macrophytes, where the electroactive microorganisms present in the rhizosphere use these compounds as biofuel. In the present study, the bioelectricity production capacity of Juncus effusus and Philodendron cordatum species was evaluated in a CW-MFC without an external carbon source. The Juncus effusus species showed a higher bioelectrochemical performance, as they recorded a maximum voltage of 399 mV, a power density of 63.7 mW/m2, a volumetric power density of 15.9 W/m3, an internal resistance of 200 Ω, an anodic potential of -368 mV, and a cathodic potential of 229 mV. In addition, different types of carbohydrates in the form of sugars (sucrose, fructose, galactose, and glucose) were quantified by liquid chromatography, with concentrations of 100-450 μg/L. Chromatographic analysis were performed from the root exudates released in the effluent of both species of macrophyte. Sucrose and glucose were the types of sugars that produced the largest amount with portions of up to 35% and 24%, respectively. Sugars are compounds that worked as electron donors for the production of bioelectricity by using endogenous substrates that fed the anodic biofilm. Consumption was 45-55% for sucrose and 40-65% for glucose. Of the different macrophytes evaluated in the CW-MFCs, it was observed that the production of bioelectricity differs mainly due to the quantity of the root exudates released in the rhizosphere.
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Affiliation(s)
- Oscar Guadarrama-Pérez
- Dirección de Ingeniería en Tecnología Ambiental y Biotecnología, Universidad Politécnica del Estado de Morelos, Jiutepec, México
| | - Gabriela Eleonora Moeller-Chávez
- Dirección de Ingeniería en Tecnología Ambiental y Biotecnología, Universidad Politécnica del Estado de Morelos, Jiutepec, México
| | - Victoria Bustos-Terrones
- Dirección de Ingeniería en Tecnología Ambiental y Biotecnología, Universidad Politécnica del Estado de Morelos, Jiutepec, México
| | - Rosa Angélica Guillén-Garcés
- Dirección de Ingeniería en Tecnología Ambiental y Biotecnología, Universidad Politécnica del Estado de Morelos, Jiutepec, México
| | - Jesús Hernández-Romano
- Dirección de Ingeniería en Tecnología Ambiental y Biotecnología, Universidad Politécnica del Estado de Morelos, Jiutepec, México
| | - Martín Barragán-Trinidad
- Dirección de Ingeniería en Tecnología Ambiental y Biotecnología, Universidad Politécnica del Estado de Morelos, Jiutepec, México
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Vo NXP, Dang Nguyen Hoang D, Doan Huu T, Doan Van T, Lam Pham Thanh H, Vo Nguyen Xuan Q. Performance of vertical up-flow-constructed wetlands integrating with microbial fuel cell (VFCW-MFC) treating ammonium in domestic wastewater. ENVIRONMENTAL TECHNOLOGY 2023; 44:1822-1837. [PMID: 34859740 DOI: 10.1080/09593330.2021.2014574] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 11/25/2021] [Indexed: 06/13/2023]
Abstract
Vertical up-flow-constructed wetlands integrating with microbial fuel cell (VFCW-MFC) were evaluated for NH4+-N removal and bioelectricity recovery. The experiments were carried out in lab-scale VFCW-MFC microcosms treating synthetic domestic wastewater under different operational conditions of pH, hydraulic retention time, and mass loading rate. Effects of wild ornamental grass (Cenchrus setaceus) on treatment performance and voltage output were investigated simultaneously. Experiments demonstrated that the neutral pH of influents favoured NH4+-N removal and power generation. Extended retention time improved treatment capacity and power output but likely depended on the substrate availability. COD removal and power output increased, while NH4+-N removal decreased with increasing mass loading rates. At the loading rate of 88.31 mg COD/L.day, planted VFCW-MFCs exhibited better NH4+-N treatment performance (36.9%) and higher voltage output (132%-143%) than unplanted systems. Plants did not affect the COD removal efficiency of VFCW-MFCs (>95%). Power density was in the range of 1.26-1.59 mW/m2 in planted microcosms with a maximum CE of 13.6%. The anode layer accounted for a major proportion of NH4+-N removal in VFCW-MFCs. This study implies that NH4+-N in domestic wastewaters with relatively high COD:N ratios can be treated effectively in up-flow CW-MFCs via anaerobic processes, including anammox and heterotrophic denitrifying processes. The mass loading rate could be a critical parameter to balance different microbial processes, thus, coincidently determining the potential of power recovery from wastewaters.
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Affiliation(s)
| | - Dat Dang Nguyen Hoang
- Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Thuy Doan Huu
- Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | | | - Hien Lam Pham Thanh
- Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Que Vo Nguyen Xuan
- Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
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The role of hydroponic microbial fuel cell in the reduction of methane emission from rice plants. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
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Simeon IM, Weig A, Freitag R. Optimization of soil microbial fuel cell for sustainable bio-electricity production: combined effects of electrode material, electrode spacing, and substrate feeding frequency on power generation and microbial community diversity. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2022; 15:124. [PMID: 36380346 PMCID: PMC9667596 DOI: 10.1186/s13068-022-02224-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Microbial fuel cells (MFCs) are among the leading research topics in the field of alternative energy sources due to their multifunctional potential. However, their low bio-energy production rate and unstable performance limit their application in the real world. Therefore, optimization is needed to deploy MFCs beyond laboratory-scale experiments. In this study, we investigated the combined influence of electrode material (EM), electrode spacing (ES), and substrate feeding interval (SFI) on microbial community diversity and the electrochemical behavior of a soil MFC (S-MFC) for sustainable bio-electricity generation. RESULTS Two EMs (carbon felt (CF) and stainless steel/epoxy/carbon black composite (SEC)) were tested in an S-MFC under three levels of ES (2, 4, and 8 cm) and SFI (4, 6, and 8 days). After 30 days of operation, all MFCs achieved open-circuit voltage in the range of 782 + 12.2 mV regardless of the treatment. However, the maximum power of the SEC-MFC was 3.6 times higher than that of the CF-MFC under the same experimental conditions. The best solution, based on the interactive influence of the two discrete variables, was obtained with SEC at an ES of 4.31 cm and an SFI of 7.4 days during an operating period of 66 days. Analysis of the experimental treatment effects of the variables revealed the order SFI < ES < EM, indicating that EM is the most influential factor affecting the performance of S-MFC. The performance of S-MFC at a given ES value was found to be dependent on the levels of SFI with the SEC electrode, but this interactive influence was found to be insignificant with the CF electrode. The microbial bioinformatic analysis of the samples from the S-MFCs revealed that both electrodes (SEC and CF) supported the robust metabolism of electroactive microbes with similar morphological and compositional characteristics, independent of ES and SFI. The complex microbial community showed significant compositional changes at the anode and cathode over time. CONCLUSION This study has demonstrated that the performance of S-MFC depends mainly on the electrode materials and not on the diversity of the constituent microbial communities. The performance of S-MFCs can be improved using electrode materials with pseudocapacitive properties and a larger surface area, instead of using unmodified CF electrodes commonly used in S-MFC systems.
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Affiliation(s)
- Imologie Meshack Simeon
- Process Biotechnology & Center for Energy Technology (ZET), University of Bayreuth, 95447, Bayreuth, Germany.
- Department of Agricultural and Bioresources Engineering, Federal University of Technology Minna, PMB 65, Minna, Nigeria.
| | - Alfons Weig
- Genomics & Bioinformatics, University of Bayreuth, 95447, Bayreuth, Germany
| | - Ruth Freitag
- Process Biotechnology & Center for Energy Technology (ZET), University of Bayreuth, 95447, Bayreuth, Germany
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Luo X, Huang L, Cai X, Zhou L, Zhou S, Yuan Y. Structure and core taxa of bacterial communities involved in extracellular electron transfer in paddy soils across China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 844:157196. [PMID: 35810886 DOI: 10.1016/j.scitotenv.2022.157196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/25/2022] [Accepted: 07/02/2022] [Indexed: 06/15/2023]
Abstract
Microbial communities with extracellular electron transfer (EET) activity are capable of driving geochemical changes and cycles, but a comprehensive understanding of the key microbiota responsible for EET in complex soil matrices is still lacking. Herein, the EET activities, in terms of maximum current density (jmax) and accumulated charge output (Cout), of 41 paddy soils across China were evaluated from the exoelectrogenic properties with a conventional bioelectrochemical system (BES). The jmax with a range of 8.85 × 10-4 to 0.41 A/m2 and Cout with a range of 0.27 to 172.21C were obtained from these soil-based BESs. The bacterial community analyses revealed that the most abundant phylum, order, and genus were Firmicutes, Clostridiales, and Clostridum-sensus-stricto 10, respectively. Bacterial network analysis displayed the positive correlations between the majority of electroactive bacteria-containing genera and multiple other genera, indicating their underlying cooperation for the EET. Partial least squares regression (PLSR) model showed remarkable performance in describing the EET activity with 75 most abundant genera as input variables, identified that 32 genera were very important for governing the EET activities. Multiple linear regression (MLR) analyses further prioritized that the genera norank-c-Berkelbacteria and Fonticella were the key contributors, while the genus Paenibacillus was the key competitor against bacterial exoelectrogenesis in paddy soils. Moreover, the spearman analysis showed that the abundance of these keystone taxa was mainly influenced by the carbon content and pH. This approach provides a promising avenue to monitor the microbial activities in paddy soils as well as the links between microbial community composition and ecological function.
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Affiliation(s)
- Xiaoshan Luo
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Lingyan Huang
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Xixi Cai
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Lihua Zhou
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Shungui Zhou
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, School of Resources and Environment, Fujian Agriculture and Forestry, Fuzhou 350000, China
| | - Yong Yuan
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
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Guadarrama-Pérez O, Bahena-Rabadan KY, Dehesa-Carrasco U, Guadarrama Pérez VH, Estrada-Arriaga EB. Bioelectricity production using shade macrophytes in constructed wetlands-microbial fuel cells. ENVIRONMENTAL TECHNOLOGY 2022; 43:1532-1543. [PMID: 33092463 DOI: 10.1080/09593330.2020.1841306] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 10/15/2020] [Indexed: 06/11/2023]
Abstract
The coupling of constructed wetlands (CW) to microbial fuel cells (MFC) has become a promising hybrid technology due to its high compatibility to generate electricity and remove pollutants from wastewater. In the present study, the bioelectricity production generated from constructed wetlands-microbial fuel cells (CW-MFCs) was evaluated using four species of shade macrophytes: Aglaonema commutatum, Epipremnum aureum, Dranacaena braunni, and Philodendron cordatum. The CW-MFCs were operated in a continuous upflow mode with a hydraulic retention time (HRT) of 4 d. The systems were fed with synthetic water without an external carbon source. The bioelectrochemical systems were operated under diffuse radiation conditions (shadow). Philodendron cordatum was the macrophyte species that produced a maximum voltage of 103 mV, with a power density of 12.5 mW/m2. High voltages were obtained when the diffuse radiation in the CW-MFCs was 3000-4000 µmol.m2/s. The maximum production of root exudates was 20.6 mg/L as total organic carbon for the Philodendron cordatum species. Philodendron cordatum was the macrophyte species that obtained high conversion efficiency (0.0014%), compared to other macrophyte species (< 0.0008%). In the CW-MFCs systems it was observed that the bioelectricity production was mainly due to the quantity of the root exudates released into the rhizospheres of the plants.
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Affiliation(s)
- Oscar Guadarrama-Pérez
- Subcoordinación de Tratamiento de Aguas Residuales, Instituto Mexicano de Tecnología del Agua, Jiutepec, México
- Subcoordinación de Posgrado, Instituto Mexicano de Tecnología del Agua, Jiutepec, México
| | | | - Ulises Dehesa-Carrasco
- Coordinación de Riego y Drenaje, Instituto Mexicano de Tecnología del Agua, Jiutepec, México
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Li B, Xu D, Feng L, Liu Y, Zhang L. Advances and prospects on the aquatic plant coupled with sediment microbial fuel cell system. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 297:118771. [PMID: 35007677 DOI: 10.1016/j.envpol.2021.118771] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/21/2021] [Accepted: 12/28/2021] [Indexed: 06/14/2023]
Abstract
Energy resource scarcity and sediment pollution perniciousness have become enormous challenges, to which research has been focused on energy recovery and recycle technologies to solve both above problems. The organic matter stored in anoxic sediments of freshwater ecosystem represents a tremendous potential energy source. The system of aquatic plant coupled with sediment microbial fuel cell (AP-SMFC) has attracted much attention as a more feasible, economical and eco-friendly way to remediate sediment and surface water and generate electricity. However, the research on AP-SMFC has only been carried out in the last decade, and relevant studies have not been well summarized. In this review, the advances and prospects on AP-SMFC were systematically introduced. Firstly, the annual publication counts and keywords co-occurrence cluster of AP-SMFC were identified and visualized by resorting to the CiteSpace software, and the result showed that the research on AP-SMFC increased significantly in the last decade on the whole and will continue to increase. The bibliometric results provided valuable references and information on potential research directions for future studies. And then, the research progress and reaction mechanism of AP-SMFC were systematically described. Thirdly, the performance of AP-SMFC, including nutrients removal, organic contaminants removal, and electricity generation, was systematically summarized. AP-SMFC can enhance the removal of pollutants and electricity generation compared with SMFC without AP, and is considered to be an ideal technology for pollutants removal and resource recovery. Finally, the current challenges and future perspectives were summarized and prospected. Therefore, the review could serve as a guide for the new entrants to the field and further development of AP-SMFC application.
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Affiliation(s)
- Benhang Li
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing, 100083, China
| | - Dandan Xu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing, 100083, China
| | - Li Feng
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing, 100083, China
| | - Yongze Liu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing, 100083, China
| | - Liqiu Zhang
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing, 100083, China.
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Arulmani SRB, Gnanamuthu HL, Kandasamy S, Govindarajan G, Alsehli M, Elfasakhany A, Pugazhendhi A, Zhang H. Sustainable bioelectricity production from Amaranthus viridis and Triticum aestivum mediated plant microbial fuel cells with efficient electrogenic bacteria selections. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.04.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Guan CY, Yu CP. Evaluation of plant microbial fuel cells for urban green roofs in a subtropical metropolis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 765:142786. [PMID: 33572039 DOI: 10.1016/j.scitotenv.2020.142786] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 08/30/2020] [Accepted: 10/01/2020] [Indexed: 06/12/2023]
Abstract
Plant microbial fuel cells (PMFCs) is a sustainable technology that can convert sunlight to electricity through the integration of plants, microorganism and electrode systems. Urban greening, such as green roofs, is considered as one of the measures to resolve the urban heat island effect caused by the increasing urbanization. In this study, PMFCs were installed as green roofs in a subtropical metropolis. During the operation, the biomass of Chinese pennisetum, Dwarf rotala, and Narrowleaf cattail increased from spring to summer. Furthermore, the maximum daily average output voltage of Chinese pennisetum and Narrowleaf cattail PMFCs was 667.94 ± 128.65 mV in March and 451.12 ± 94.37 mV in June, respectively. For no plant conditions, the maximum daily average output voltage of soil MFCs was 243.70 ± 128.93 mV in March and 100.16 ± 23.43 mV in June. However, little output voltage of Dwarf rotala PMFCs indicated different plant species in PMFC systems would result in varied efficiencies of electricity generation. The trends of electricity generation in Chinese pennisetum and Narrowleaf cattail PMFCs were influenced by net solar radiation and air temperature, respectively according to the results of correlation analysis. The PMFCs based green roofs could lower the temperature of underneath floor slabs as many as 24.81 °C and 29.37 °C compared with bare slabs at noon in March and June. Vegetation of the PMFCs could relieve soil heat flux, and simulated results showed Chinese pennisetum PMFCs with higher vegetation had lower U-value for energy savings of air conditioning. Microbial community analysis showed Geobacter was among the dominant genera and had higher relative abundance in anode soils than cathode soils in Chinese pennisetum and Narrowleaf cattail PMFCs, which generated higher output voltage. Our roof-top research demonstrated that using PMFCs based green roofs for urban greening is promising and warrants the potential for future application.
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Affiliation(s)
- Chung-Yu Guan
- Graduate Institute of Environmental Engineering, National Taiwan University, Taipei 106, Taiwan; Department of Environmental Engineering, National Ilan University, Yilan 260, Taiwan
| | - Chang-Ping Yu
- Graduate Institute of Environmental Engineering, National Taiwan University, Taipei 106, Taiwan; Water Innovation, Low Carbon and Environmental Sustainability Research Center, National Taiwan University, Taipei 106, Taiwan.
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Park Y, Yu J, Nguyen VK, Park S, Kim J, Lee T. Understanding complete ammonium removal mechanism in single-chamber microbial fuel cells based on microbial ecology. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 764:144231. [PMID: 33385649 DOI: 10.1016/j.scitotenv.2020.144231] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/23/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
The removal of organics and ammonium from domestic wastewater was successfully achieved by a flat-panel air-cathode microbial fuel cell (FA-MFC). To elucidate the reason for complete ammonium removal in the single-chamber MFCs, microbial communities were analyzed in biofilms on the surface of each anode, separator, and cathode of separator-electrode assemblies (SEAs). The spatial distribution of bacterial families related to the nitrogen cycle varied based on local conditions. Since oxygen diffusing from the air-cathode created a locally aerobic condition, ammonia-oxidizing bacteria (AOB) Nitrosomonadacea and nitrite-oxidizing bacteria (NOB) Nitrospiraceae were present near the cathode. NOB (~12.1%) was more abundant than AOB (~4.4%), suggesting that the nitrate produced by NOB may be reduced back to nitrite by heterotrophic denitrifiers such as Rhodocyclaceae (~21.7%) and Comamonadaceae (~5%) in the anoxic zone close to the NOB layer. Near that zone, the "nitrite loop" also substantially enriched two nitrite-reducing bacterial families: Ignavibacteriaceae (~18.1%), facultative heterotrophs, and Brocadiaceae (~11.2%), anaerobic ammonium oxidizing autotrophs. A larger inner area of biofilm contained abundant heterotrophic denitrifiers and fermentation bacteria. These results indicate that the large-surface SEA of FA-MFC allows counter-diffusion between substrates and oxygen, resulting in interactions of bacteria involved in the nitrogen cycle for complete ammonium removal.
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Affiliation(s)
- Younghyun Park
- Korea Testing & Research Institute, Ulsan 44412, Republic of Korea
| | - Jaecheul Yu
- Department of Civil and Environmental Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Van Khanh Nguyen
- Department of Microbiology, Pusan National University, Busan 46241, Republic of Korea
| | - Seonghwan Park
- Future Environmental Research Center, Gyeongnam Department of Environmental Toxicology & Chemistry, Korea Institute of Toxicology, Jinju 52834, Republic of Korea
| | - Jeongmi Kim
- Department of Civil and Environmental Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Taeho Lee
- Department of Civil and Environmental Engineering, Pusan National University, Busan 46241, Republic of Korea.
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Wang W, Zhang Y, Li M, Wei X, Wang Y, Liu L, Wang H, Shen S. Operation mechanism of constructed wetland-microbial fuel cells for wastewater treatment and electricity generation: A review. BIORESOURCE TECHNOLOGY 2020; 314:123808. [PMID: 32713782 DOI: 10.1016/j.biortech.2020.123808] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/02/2020] [Accepted: 07/04/2020] [Indexed: 06/11/2023]
Abstract
Constructed wetland-microbial fuel cells (CWL-MFCs) are eco-friendly and sustainable technology, simultaneously implementing contaminant removal and electricity production. According to intensive research over the last five years, this review on the operation mechanism was conducted for in-depth understanding and application guidance of CWL-MFCs. The electrochemical mechanism based on anodic oxidation and cathodic reduction is the core for improved treatment in CWL-MFCs compared to CWLs. As the dominant bacterial community, the abundance and gene-expression patterns of electro-active bacteria responds to electrode potentials and contaminant loadings, further affecting operational efficiency of CWL-MFCs. Plants benefit COD and N removal by supplying oxygen for aerobic degradation and rhizosphere secretions for microorganisms. Multi-electrode configuration, carbon-based electrodes and rich porous substrates affect transfer resistance and bacterial communities. The possibilities of CWL-MFCs targeting at recalcitrant contaminants like flame retardants and interchain interactions among effect components need systematic research.
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Affiliation(s)
- Wenjing Wang
- Xiong'an Institute of Eco-Environment, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, China; Institute of Ecology and Environmental Governance, College of Life Sciences, Hebei University, China
| | - Yu Zhang
- Xiong'an Institute of Eco-Environment, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, China; Institute of Ecology and Environmental Governance, College of Life Sciences, Hebei University, China
| | - Mengxiang Li
- Xiong'an Institute of Eco-Environment, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, China; Institute of Ecology and Environmental Governance, College of Life Sciences, Hebei University, China
| | - Xiaogang Wei
- Xiong'an Institute of Eco-Environment, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, China; Institute of Ecology and Environmental Governance, College of Life Sciences, Hebei University, China
| | - Yali Wang
- Xiong'an Institute of Eco-Environment, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, China; Institute of Ecology and Environmental Governance, College of Life Sciences, Hebei University, China
| | - Ling Liu
- Xiong'an Institute of Eco-Environment, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, China; Institute of Ecology and Environmental Governance, College of Life Sciences, Hebei University, China
| | - Hongjie Wang
- Xiong'an Institute of Eco-Environment, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, China; Institute of Ecology and Environmental Governance, College of Life Sciences, Hebei University, China.
| | - Shigang Shen
- Xiong'an Institute of Eco-Environment, Hebei University, Baoding 071002, China; Institute of Life Science and Green Development, Hebei University, China
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Wang L, Pang Q, Zhou Y, Peng F, He F, Li W, Xu B, Cui Y, Zhu X. Robust nitrate removal and bioenergy generation with elucidating functional microorganisms under carbon constraint in a novel multianode tidal constructed wetland coupled with microbial fuel cell. BIORESOURCE TECHNOLOGY 2020; 314:123744. [PMID: 32615443 DOI: 10.1016/j.biortech.2020.123744] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/23/2020] [Accepted: 06/23/2020] [Indexed: 06/11/2023]
Abstract
This study investigated synthetic wastewater treatment under low inflow C/N ratio and characterized NO3--N-transforming and electricity-producing bacteria in a multi-anode tidal constructed wetland-microbial fuel cell (TFCW-MFC). The optimal concurrent average removal rates of NH4+-N and NO3--N were 73% and 78%, respectively, under a flood/rest/flood time of 4 h/2h/4h in "tide" mode accompanied by one recirculation. The lowest NO3--N concentration among all anodes was observed when the electrode gap was 45 cm. Similarly, the 45 cm anode exhibited selective enrichment of Variovorax and Azoarcus. Correction analysis showed that the high relative abundance of Azoarcus was crucial in enhancing NO3--N removal, and the internal resistance significantly decreased as the relative abundance of Acidovorax increased. These results suggest that NO3--N removal and bioelectricity generation can be promoted in a TFCW-MFC with limited carbon by improving the culture conditions for specific genera.
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Affiliation(s)
- Longmian Wang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, PR China.
| | - Qingqing Pang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, PR China
| | - Ying Zhou
- College of Environment, Hohai University, Nanjing 210098, PR China
| | - Fuquan Peng
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, PR China
| | - Fei He
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, PR China
| | - Weixin Li
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, PR China; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science & Technology, Nanjing 210044, PR China
| | - Bin Xu
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, PR China
| | - Yibin Cui
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, PR China
| | - Xiang Zhu
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, PR China
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Chung TH, Meshref MN, Dhar BR. Microbial electrochemical biosensor for rapid detection of naphthenic acid in aqueous solution. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114405] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Srivastava P, Abbassi R, Yadav AK, Garaniya V, Asadnia M. A review on the contribution of electron flow in electroactive wetlands: Electricity generation and enhanced wastewater treatment. CHEMOSPHERE 2020; 254:126926. [PMID: 32957303 DOI: 10.1016/j.chemosphere.2020.126926] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/26/2020] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
In less than a decade, bioelectrochemical systems/microbial fuel cell integrated constructed wetlands (electroactive wetlands) have gained a considerable amount of attention due to enhanced wastewater treatment and electricity generation. The enhancement in treatment has majorly emanated from the electron transfer or flow, particularly in anaerobic regions. However, the chemistry associated with electron transfer is complex to understand in electroactive wetlands. The electroactive wetlands accommodate diverse microbial community in which each microbe set their own potential to further participate in electron transfer. The conductive materials/electrodes in electroactive wetlands also contain some potential, due to which, several conflicts occur between microbes and electrode, and results in inadequate electron transfer or involvement of some other reaction mechanisms. Still, there is a considerable research gap in understanding of electron transfer between electrode-anode and cathode in electroactive wetlands. Additionally, the interaction of microbes with the electrodes and understanding of mass transfer is also essential to further understand the electron recovery. This review mainly deals with the electron transfer mechanism and its role in pollutant removal and electricity generation in electroactive wetlands.
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Affiliation(s)
- Pratiksha Srivastava
- Australian Maritime College, College of Sciences and Engineering, University of Tasmania, Launceston, 7248, Australia
| | - Rouzbeh Abbassi
- School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney, NSW, 2109, Australia.
| | - Asheesh Kumar Yadav
- Environment and Sustainability Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, 751013, India
| | - Vikram Garaniya
- Australian Maritime College, College of Sciences and Engineering, University of Tasmania, Launceston, 7248, Australia
| | - Mohsen Asadnia
- School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney, NSW, 2109, Australia
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16
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Zhang K, Wu X, Luo H, Li X, Chen W, Chen J, Mo Y, Wang W. CH 4 control and associated microbial process from constructed wetland (CW) by microbial fuel cells (MFC). JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 260:110071. [PMID: 32090814 DOI: 10.1016/j.jenvman.2020.110071] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 12/31/2019] [Accepted: 01/03/2020] [Indexed: 06/10/2023]
Abstract
Global warming is becoming more severe. We here proposed an innovative green technique aimed at reducing the CH4 emissions from constructed wetlands (CWs) in which CH4 is controlled by microbial fuel cells (MFCs). The results of our work indicated that CH4 emissions from CWs could be controlled by operating MFC. The CH4 fluxes significantly decreased in the MFC-CW (close circuit CC) compared with the control MFC-CW (open circuit OC). The bioelectricity generation and COD removal rates also differed in the two systems. The highest power density (0.27 W m-3) and the lowest CH4 emissions (4.7 mg m-2 h-1) were observed in the CC system. The plants' effects on the performance of the MFC-CWs were also investigated. The plant species had a profound impact on the CH4 emissions and electricity production in MFC-CWs. The greatest CH4 flux (9.5 mg m-2 h-1) was observed from the MFC-CW planted with Typha orientalis, while the CH4 emissions from the MFC-CW planted with Cyperus alternifolius were reduced by 45%. Additional microbial processes were investigated. Quantitative real-time PCR (q-PCR) analysis indicated that the gene abundance of eubacterial 16 S rRNA, particulate methane monooxygenase (pmoA), and methyl coenzyme M reductase (mcrA) significantly differed for the control CW and MFC-CWs planted with different plants. In the CC systems, the mcrA genes in the anode were low, while the pmoA genes in the cathode were high. The operation of MFCs in CWs changed the exoelectrogenic and methanogenic community structures. Sequencing analysis indicated that phylotypes related to Geobacter, Bacteroides, and Desulfovibrio were specifically enriched in the CC systems. The results demonstrated that the operation of MFCs in the CWs resulted in the competition between the electrogenes and methanogenes, which resulted in distinctive microbial populations and biochemical processes that suppressed the CH4 emissions from the CWs.
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Affiliation(s)
- Ke Zhang
- School of Environment, Harbin Institute of Technology, Harbin, 150090, Heilongjiang, PR China; College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, 611830, PR China.
| | - Xiangling Wu
- College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, 611830, PR China
| | - Hongbing Luo
- College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, 611830, PR China
| | - Xiangkun Li
- School of Environment, Harbin Institute of Technology, Harbin, 150090, Heilongjiang, PR China.
| | - Wei Chen
- College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, 611830, PR China
| | - Jia Chen
- College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, 611830, PR China
| | - You Mo
- College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, 611830, PR China
| | - Wei Wang
- School of Environment, Harbin Institute of Technology, Harbin, 150090, Heilongjiang, PR China
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A Thin Layer of Activated Carbon Deposited on Polyurethane Cube Leads to New Conductive Bioanode for (Plant) Microbial Fuel Cell. ENERGIES 2020. [DOI: 10.3390/en13030574] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Large-scale implementation of (plant) microbial fuel cells is greatly limited by high electrode costs. In this work, the potential of exploiting electrochemically active self-assembled biofilms in fabricating three-dimensional bioelectrodes for (plant) microbial fuel cells with minimum use of electrode materials was studied. Three-dimensional robust bioanodes were successfully developed with inexpensive polyurethane foams (PU) and activated carbon (AC). The PU/AC electrode bases were fabricated via a water-based sorption of AC particles on the surface of the PU cubes. The electrical current was enhanced by growth of bacteria on the PU/AC bioanode while sole current collectors produced minor current. Growth and electrochemical activity of the biofilm were shown with SEM imaging and DNA sequencing of the microbial community. The electric conductivity of the PU/AC electrode enhanced over time during bioanode development. The maximum current and power density of an acetate fed MFC reached 3 mA·m−2 projected surface area of anode compartment and 22 mW·m−3 anode compartment. The field test of the Plant-MFC reached a maximum performance of 0.9 mW·m−2 plant growth area (PGA) at a current density of 5.6 mA·m−2 PGA. A paddy field test showed that the PU/AC electrode was suitable as an anode material in combination with a graphite felt cathode. Finally, this study offers insights on the role of electrochemically active biofilms as natural enhancers of the conductivity of electrodes and as transformers of inert low-cost electrode materials into living electron acceptors.
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18
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Srivastava P, Yadav AK, Garaniya V, Lewis T, Abbassi R, Khan SJ. Electrode dependent anaerobic ammonium oxidation in microbial fuel cell integrated hybrid constructed wetlands: A new process. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 698:134248. [PMID: 31494423 DOI: 10.1016/j.scitotenv.2019.134248] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 08/23/2019] [Accepted: 09/01/2019] [Indexed: 06/10/2023]
Abstract
This study provides a new approach of electrode dependent anaerobic ammonium oxidation (electroanammox) in microbial fuel cell (MFC) integrated hybrid constructed wetlands (CWs). The study was carried out in three CWs, each with a horizontal flow (HF) followed by a vertical upflow (VUF). Two of the CWs were integrated with MFC, one was operated in closed circuit (CL) mode and the other in open circuit (OP) mode to determine the influence of electron transfer through an external electrical circuit. The initial nitrogen and carbon concentration were 40 mg/l and 880 mg/l respectively. The total nitrogen (TN), NH4+-N, TOC and COD removal achieved in CW-MFC-CL were 90.0 ± 1.15%, 94.4 ± 0.75%, 64.8 ± 3.0% and up to 99.5 ± 3.4%, respectively. The TN and NH4+-N removal in CW-MFC-CL was 20.0% and 13.6% higher than normal CW. Maximum current density achieved in CW-MFC-HF was of 75 mA/m3 and in CW-MFC-VUF was 156 mA/m3. Furthermore, the study revealed that even at low microbiological biomass, an MFC integrated CW operating in closed circuit gave higher removal of NH4+-N and COD than the normal CW and open circuit CW-MFC. Microbiological analysis shows the presence of already known nitrifier and denitrifer which indicates their role in electrode dependent nitrogen removal.
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Affiliation(s)
- Pratiksha Srivastava
- Australian Maritime College, College of Sciences and Engineering, University of Tasmania, Launceston 7248, Australia
| | - Asheesh Kumar Yadav
- Environment and Sustainability Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
| | - Vikram Garaniya
- Australian Maritime College, College of Sciences and Engineering, University of Tasmania, Launceston 7248, Australia
| | - Trevor Lewis
- School of Natural Sciences, College of Sciences and Engineering, University of Tasmania, Launceston 7250, Tasmania, Australia
| | - Rouzbeh Abbassi
- School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney 2109, NSW, Australia.
| | - Stuart J Khan
- School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW, Australia
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Liu B, Zhai H, Liang Y, Ji M, Wang R. Increased power production and removal efficiency of polycyclic aromatic hydrocarbons by plant pumps in sediment microbial electrochemical systems: A preliminary study. JOURNAL OF HAZARDOUS MATERIALS 2019; 380:120896. [PMID: 31349145 DOI: 10.1016/j.jhazmat.2019.120896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 06/21/2019] [Accepted: 07/12/2019] [Indexed: 05/21/2023]
Abstract
The low mass transfer of sediment substrates has limited the efficiency and application of a sediment microbial electrochemical system (SMES) as a power generator and as a practical bioremediation technology. In this study, we designed a new plant-driven SMES (New-PSMES) with a separated sand-filled anode column in order to improve the mass transfer and thereby enhance the microorganism activity, power generation and bioremediation range and efficiency for polycyclic aromatic hydrocarbons (PAHs). Because of the mass flow driven by the plants, the New-PSMESs started up approximately 7 d earlier and produced voltages 30-70 mV higher than the planted SMESs, and had greater enzyme activities and residual organic carbon than the unplanted and planted SMESs. In the New-PSMES, the total mass removal rates of phenanthrene and pyrene were 62.98% and 57.02% after 82 d, and these values were 1.5-2 times higher than those of the unplanted and planted SMESs. The removal of PAHs in the sediment was primarily attributed to nonelectrochemical biodegradation at sites far from the anode and to electrochemical reactions on the anode. The top three most abundant phyla in all samples were Proteobacteria, Chloroflexi, and Bacteroidetes. Aerobic bacteria, such as Nautella, were enriched in the biofilms of the New-PSMESs.
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Affiliation(s)
- Boyue Liu
- School of Environmental Science and Engineering, Tianjin University, Weijin Road 92, Tianjin, 300072, China
| | - Hongyan Zhai
- School of Environmental Science and Engineering, Tianjin University, Weijin Road 92, Tianjin, 300072, China.
| | - Yinxiu Liang
- School of Environmental Science and Engineering, Tianjin University, Weijin Road 92, Tianjin, 300072, China
| | - Min Ji
- School of Environmental Science and Engineering, Tianjin University, Weijin Road 92, Tianjin, 300072, China
| | - Rumeng Wang
- School of Environmental Science and Engineering, Tianjin University, Weijin Road 92, Tianjin, 300072, China
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20
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Kabutey FT, Antwi P, Ding J, Zhao QL, Quashie FK. Enhanced bioremediation of heavy metals and bioelectricity generation in a macrophyte-integrated cathode sediment microbial fuel cell (mSMFC). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:26829-26843. [PMID: 31300989 DOI: 10.1007/s11356-019-05874-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 06/28/2019] [Indexed: 06/10/2023]
Abstract
Sediment microbial fuel cell (SMFC) and constructed wetlands with macrophytes have been independently employed for the removal of heavy metals from polluted aquatic ecosystems. Nonetheless, the coupling of macrophytes at the cathode of SMFCs for efficient and synchronous heavy metal removal and bioelectricity generation from polluted river sediment has not been fully explored. Therefore, a novel macrophyte biocathode SMFC (mSMFC) was proposed, developed, and evaluated for heavy metals/organics removal as well as bioelectricity generation in an urban polluted river. With macrophyte-integrated cathode, higher heavy metal removals of Pb 99.58%, Cd 98.46%, Hg 95.78%, Cr 92.60%, As 89.18%, and Zn 82.28% from the sediments were exhibited after 120 days' operation. Total chemical oxygen demand, total suspended solids, and loss on ignition reached 73.27%, 44.42 ± 4.4%, and 5.87 ± 0.4%, respectively. A maximum voltage output of 0.353 V, power density of 74.16 mW/m3, columbic efficiency of 19.1%, normalized energy recovery of 0.028 kWh/m3, and net energy production of 0.015 kWh/m3 were observed in the Lemna minor L. SMFC. Heavy metal and organic removal pathways included electrochemical reduction, precipitation and recovery, bioaccumulation by macrophyte from the surface water, and bioelectrochemical reduction in the sediment. This study established that mSMFC proved as an efficient system for the remediation of heavy metals Pb, Cd, Hg, Cr, As, and Zn, and TCOD in polluted rivers along with bioelectricity generation.
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Affiliation(s)
- Felix Tetteh Kabutey
- State Key Laboratory of Urban Water Resources and Environments (SKLURE), Harbin Institute of Technology, Harbin, 150090, China
- Council for Scientific and Industrial Research-Institute for Scientific and Technological Information (CSIR-INSTI), P. O. Box, M-32, Accra, Ghana
| | - Philip Antwi
- Jiangxi Key Laboratory of Mining and Metallurgy Environmental Pollution Control, School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, People's Republic of China
| | - Jing Ding
- State Key Laboratory of Urban Water Resources and Environments (SKLURE), Harbin Institute of Technology, Harbin, 150090, China
| | - Qing-Liang Zhao
- State Key Laboratory of Urban Water Resources and Environments (SKLURE), Harbin Institute of Technology, Harbin, 150090, China.
| | - Frank Koblah Quashie
- State Key Laboratory of Urban Water Resources and Environments (SKLURE), Harbin Institute of Technology, Harbin, 150090, China
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21
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Activated Carbon Mixed with Marine Sediment is Suitable as Bioanode Material for Spartina anglica Sediment/Plant Microbial Fuel Cell: Plant Growth, Electricity Generation, and Spatial Microbial Community Diversity. WATER 2019. [DOI: 10.3390/w11091810] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Wetlands cover a significant part of the world’s land surface area. Wetlands are permanently or temporarily inundated with water and rich in nutrients. Therefore, wetlands equipped with Plant-Microbial Fuel Cells (Plant-MFC) can provide a new source of electricity by converting organic matter with the help of electrochemically active bacteria. In addition, sediments provide a source of electron donors to generate electricity from available (organic) matters. Eight lab-wetlands systems in the shape of flat-plate Plant-MFC were constructed. Here, four wetland compositions with activated carbon and/or marine sediment functioning as anodes were investigated for their suitability as a bioanode in a Plant-MFC system. Results show that Spartina anglica grew in all of the plant-MFCs, although the growth was less fertile in the 100% activated carbon (AC100) Plant-MFC. Based on long-term performance (2 weeks) under 1000 ohm external load, the 33% activated carbon (AC33) Plant-MFC outperformed the other plant-MFCs in terms of current density (16.1 mA/m2 plant growth area) and power density (1.04 mW/m2 plant growth area). Results also show a high diversity of microbial communities dominated by Proteobacteria with 42.5%–69.7% relative abundance. Principal Coordinates Analysis shows clear different bacterial communities between 100% marine sediment (MS100) Plant-MFC and AC33 Plant-MFC. This result indicates that the bacterial communities were affected by the anode composition. In addition, small worms (Annelida phylum) were found to live around the plant roots within the anode of the wetland with MS100. These findings show that the mixture of activated carbon and marine sediment are suitable material for bioanodes and could be useful for the application of Plant-MFC in a real wetland. Moreover, the usage of activated carbon could provide an additional function like wetland remediation or restoration, and even coastal protection.
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Saba B, Khan M, Christy AD, Kjellerup BV. Microbial phyto-power systems – A sustainable integration of phytoremediation and microbial fuel cells. Bioelectrochemistry 2019; 127:1-11. [DOI: 10.1016/j.bioelechem.2018.12.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 12/14/2018] [Accepted: 12/14/2018] [Indexed: 10/27/2022]
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Rusyn IB, Vakuliuk VV, Burian OV. Prospects of use of Caltha palustris in soil plant-microbial eco-electrical biotechnology. REGULATORY MECHANISMS IN BIOSYSTEMS 2019. [DOI: 10.15421/021935] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Soil plant-microbial biosystems are a promising sustainable technology, resulting in electricity as final product. Soil microbes convert organic products of plant photosynthesis and transfer electrons through an electron transport chain onto electrodes located in soil. This article presents a study of prospects for the generation of bioelectricity by a soil plant-microbial electro-biotechnological system with Caltha palustris L. (Ranunculaceae), a marshy winter-hardy plant that develops early in the spring and is widespread in the moderate climatic zone, in clay-peat medium and with introduction of Lumbricus terrestris L. (Lumbricidae). The experiment was carried out in the wetlands of the Ukrainian Polissya and the Carpathian mountains in situ, and on the balconies and terraces of buildings to assess the possibilities of using green energy sources located directly in buildings. The electrodes were placed stationary in the soil to measure the values of bioelectric potential and current strength. We monitored the bioelectricity indices in open circle and under load using external resistors, and calculated the current density and power density, normalized to the soil surface covered by plants and electrodes. The revealed high maximal values of the bioelectric potential, 1454.1 mV, and current, 11.2 mA, and high average bioelectricity values in optimal natural conditions in wetlands in situ make C. palustris a promising component of soil plant-microbial bio-electrotechnology. We analyzed the influence of temperature and precipitation on the functioning of the soil plant-microbial biosystem. The use of thickets of C. palustris in wetlands in situ, as a stable source of plant-microbial eco-electricity in the summer, is complicated by the fact that the plant sensitively reacts to long periods of high temperature and periods of drought, which is accompanied by decrease in the level of bioelectric parameters. The cultivation of the marsh plant C. palustris as a component of electro-biosystems is possible on terraces and balconies of buildings. The cultivation of C. palustris in clay-peat soil with electrode system for production of eco-electricity on shaded balconies and terraces of buildings requires optimal irrigation, lighting, and introduction of L. terrestris into the substrate, which increase the bioelectricity values of this biotechnology.
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Kirmizakis P, Doherty R, Mendonça CA, Costeira R, Allen CCR, Ofterdinger US, Kulakov L. Enhancement of gasworks groundwater remediation by coupling a bio-electrochemical and activated carbon system. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:9981-9991. [PMID: 30739291 PMCID: PMC6469603 DOI: 10.1007/s11356-019-04297-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 01/18/2019] [Indexed: 05/03/2023]
Abstract
Here, we show the electrical response, bacterial community, and remediation of hydrocarbon-contaminated groundwater from a gasworks site using a graphite-chambered bio-electrochemical system (BES) that utilizes granular activated carbon (GAC) as both sorption agent and high surface area anode. Our innovative concept is the design of a graphite electrode chamber system rather than a classic non-conductive BES chamber coupled with GAC as part of the BES. The GAC BES is a good candidate as a sustainable remediation technology that provides improved degradation over GAC, and near real-time observation of associated electrical output. The BES chambers were effectively colonized by the bacterial communities from the contaminated groundwater. Principal coordinate analysis (PCoA) of UniFrac Observed Taxonomic Units shows distinct grouping of microbial types that are associated with the presence of GAC, and grouping of microbial types associated with electroactivity. Bacterial community analysis showed that β-proteobacteria (particularly the PAH-degrading Pseudomonadaceae) dominate all the samples. Rhodocyclaceae- and Comamonadaceae-related OTU were observed to increase in BES cells. The GAC BES (99% removal) outperformed the control graphite GAC chamber, as well as a graphite BES and a control chamber both filled with glass beads.
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Affiliation(s)
- Panagiotis Kirmizakis
- School of the Natural and Built Environment, Queen's University Belfast, Stranmillis Road, Belfast, BT9 5AG, UK
| | - Rory Doherty
- School of the Natural and Built Environment, Queen's University Belfast, Stranmillis Road, Belfast, BT9 5AG, UK.
| | - Carlos A Mendonça
- Department of Geophysics, University of São Paulo, Rua do Matão, São Paulo, 1226, Brazil
| | - Ricardo Costeira
- School of Biological Sciences, Queen's University Belfast, Lisburn Road, Belfast, BT9 7BL, UK
| | - Chris C R Allen
- School of Biological Sciences, Queen's University Belfast, Lisburn Road, Belfast, BT9 7BL, UK
- Institute for Global Food Security, Queen's University Belfast, Lisburn Road, Belfast, BT9 7BL, UK
| | - Ulrich S Ofterdinger
- School of the Natural and Built Environment, Queen's University Belfast, Stranmillis Road, Belfast, BT9 5AG, UK
| | - Leonid Kulakov
- School of Biological Sciences, Queen's University Belfast, Lisburn Road, Belfast, BT9 7BL, UK
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Rusyn IB, Hamkalo КR. Bioelectricity production in an indoor plant-microbial biotechnological system with Alisma plantago-aquatica. ACTA ACUST UNITED AC 2019. [DOI: 10.14232/abs.2018.2.170-179] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The paper descibes the development of a biotechnological system for generating bioelectricity on closed balconies of buildings from living plants Alisma plantago-aquatica and soil microorganisms grown in containers with natural wetland substrate, provided with a graphite and Zn-galvanized steel electrode system. This biotechnology worked efficiently from the first days after installation and was practically at full capacity 2 weeks later. Electric power output was highest in the spring-summer and the early autumn period (at the time of the highest photosynthetic activity of plants). The highest current output was 58.6 mA at 10 Ω load. Bioelectricity generation by the biosystem was stable with slight fluctuations throughout the year in well-lighted and heated premises at a temperature of 21-26 °C, and the seasonal reduction of the bioelectricity level was 8.71%. On not-heated closed terraces and glazed balconies, with temperature fluctuations from 5 to 26 °C, the electricity production decreased in the winter period by 19.98% and 39.91% with and without adding of sulfate-reducing bacteria, respectively. The proposed system of electrodes for collection of bioelectric power is new, easy to manufacture and economical. It is resistant to waterlogged environment, and has good prospects for further improvements for more effective collection of plant-microbial bioelectricity. Maintainance of the biosystem is simple and accessible to everyone without special skills.
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26
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Rusyn IB, Hamkalo KR. Use of Carex hirta in electro-biotechnological systems on green roofs. REGULATORY MECHANISMS IN BIOSYSTEMS 2019. [DOI: 10.15421/021906] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Production of bioelectricity from substrates with growing plants and developing microorganisms is the newest technology of alternative energetics that has great perspectives. The efforts of scientists around the world are aimed at improving biotechnology: the development of effective electrode systems for the collection of plant-microbial bioelectricity, the search for new plants, suitable for technology, testing of new substrates for the development of plants. In this paper, we presented tests of new model electro-biosystems (EBS) consisting of graphite-zinc-steelical systems of electrodes with stainless steel elements placed in plastic containers with soil substrate and planted sedges Carex hirta. The experiment was conducted during the year on the roofs of a university building in the climatic conditions of the Western Ukrainian region to assess the functioning of the electro-biosystems in outdoor conditions. We analyzed the different types of electrode placement in containers: with the horizontal alocation of the electrodes under the root system, with the vertical placement cathodes and anodes in a container and with the increased contact area of the cathodes with the substrate and reinforced connecting of cathodes with each other. During the experiment, we monitored the bioelectric potential of the samples which were in an open circle and under load of an external resistor. To analyze short-term voltage and current, polarization measurements were performed by changing the external resistance from 10 Ω to 5 kΩ, and the current strength, current density and power density were calculated. The conducted experiments showed C. hirta can be successfully cultivated on green roofs in open soil in the climatic conditions of the Western Ukrainian region. The studied electro-biosystems operate round-the-year as the plants are frost-resistant. Metereological conditions, especially the temperature and precipitation intensity, affect the electro-performance of the electro-biosystems on the roofs. The maximum average weekly current of 21.36 mA was recorded in May at optimum temperatures and a favourable humidity level, with an average temperature of 11.4 °C and rainfall of 5.39 mm/day. The electrical performance of electro-biosystems decreases during the winter and dry periods without an organized irrigation system. During the winter period, electrode systems are damaged by adverse factors. The configuration of the electrode system EBS3 is less susceptible to breakdowns due to the destructive action of water during freezing in the winter and more effective in collecting bioelectricity. The research represented in the paper is one more step towards improving bioelectricity technology on green roofs.
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Md Khudzari J, Gariépy Y, Kurian J, Tartakovsky B, Raghavan GV. Effects of biochar anodes in rice plant microbial fuel cells on the production of bioelectricity, biomass, and methane. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2018.10.012] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Zhao N, Jiang Y, Alvarado-Morales M, Treu L, Angelidaki I, Zhang Y. Electricity generation and microbial communities in microbial fuel cell powered by macroalgal biomass. Bioelectrochemistry 2018; 123:145-149. [DOI: 10.1016/j.bioelechem.2018.05.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/02/2018] [Accepted: 05/02/2018] [Indexed: 10/17/2022]
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Heidrich E, Dolfing J, Wade M, Sloan W, Quince C, Curtis T. Temperature, inocula and substrate: Contrasting electroactive consortia, diversity and performance in microbial fuel cells. Bioelectrochemistry 2018; 119:43-50. [DOI: 10.1016/j.bioelechem.2017.07.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 06/21/2017] [Accepted: 07/14/2017] [Indexed: 11/29/2022]
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Dessì P, Porca E, Haavisto J, Lakaniemi AM, Collins G, Lens PNL. Composition and role of the attached and planktonic microbial communities in mesophilic and thermophilic xylose-fed microbial fuel cells. RSC Adv 2018; 8:3069-3080. [PMID: 35541202 PMCID: PMC9077550 DOI: 10.1039/c7ra12316g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 01/08/2018] [Indexed: 11/21/2022] Open
Abstract
A mesophilic (37 °C) and a thermophilic (55 °C) two-chamber microbial fuel cell (MFC) were studied and compared for their power production from xylose and the microbial communities involved. The anode-attached, membrane-attached, and planktonic microbial communities, and their respective active subpopulations, were determined by next generation sequencing (Illumina MiSeq), based on the presence and expression of the 16S rRNA gene. Geobacteraceae accounted for 65% of the anode-attached active microbial community in the mesophilic MFC, and were associated to electricity generation likely through direct electron transfer, resulting in the highest power production of 1.1 W m-3. A lower maximum power was generated in the thermophilic MFC (0.2 W m-3), likely due to limited acetate oxidation and the competition for electrons by hydrogen oxidizing bacteria and hydrogenotrophic methanogenic archaea. Aerobic microorganisms, detected among the membrane-attached active community in both the mesophilic and thermophilic MFC, likely acted as a barrier for oxygen flowing from the cathodic chamber through the membrane, favoring the strictly anaerobic exoelectrogenic microorganisms, but competing with them for xylose and its degradation products. This study provides novel information on the active microbial communities populating the anodic chamber of mesophilic and thermophilic xylose-fed MFCs, which may help in developing strategies to favor exoelectrogenic microorganisms at the expenses of competing microorganisms.
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Affiliation(s)
- Paolo Dessì
- Laboratory of Chemistry and Bioengineering, Tampere University of Technology P.O. Box 541 FI-33101 Tampere Finland +358 417239696
| | - Estefania Porca
- Microbial Communities Laboratory, School of Natural Sciences, National University of Ireland Galway University Road Galway H91 TK33 Ireland
| | - Johanna Haavisto
- Laboratory of Chemistry and Bioengineering, Tampere University of Technology P.O. Box 541 FI-33101 Tampere Finland +358 417239696
| | - Aino-Maija Lakaniemi
- Laboratory of Chemistry and Bioengineering, Tampere University of Technology P.O. Box 541 FI-33101 Tampere Finland +358 417239696
| | - Gavin Collins
- Microbial Communities Laboratory, School of Natural Sciences, National University of Ireland Galway University Road Galway H91 TK33 Ireland
| | - Piet N L Lens
- Laboratory of Chemistry and Bioengineering, Tampere University of Technology P.O. Box 541 FI-33101 Tampere Finland +358 417239696
- UNESCO-IHE, Institute for Water Education Westvest 7 2611AX Delft The Netherlands
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Wang J, Song X, Wang Y, Bai J, Li M, Dong G, Lin F, Lv Y, Yan D. Bioenergy generation and rhizodegradation as affected by microbial community distribution in a coupled constructed wetland-microbial fuel cell system associated with three macrophytes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 607-608:53-62. [PMID: 28686895 DOI: 10.1016/j.scitotenv.2017.06.243] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 06/26/2017] [Accepted: 06/27/2017] [Indexed: 06/07/2023]
Abstract
Rhizodeposits excreted by various macrophytes might lead to the potential discrepancy of microbial community distribution in constructed wetland coupled with microbial fuel cell (CW-MFC), which has been considered as main factors for the variations of bioelectricity generation during wastewater treatment. In this study, CW-MFC has been associated with three macrophytes (J. effuses, T. orientalis and S. validus) for domestic sewage treatment, also unplanted CW-MFC was performed as a control system. Macrophyte T. orientalis and S. validus can significantly strengthen the bioenergy output in CW-MFC. Highest current (94.27mAm-2) and power densities (21.53mWm-2) were obtained in CW-MFC planted with T. orientalis. Removal efficiencies of COD, NO3-N and NH3-N in CW-MFC planted with S. validus was respectively 5.8%, 7.2%, and 23.9% higher than that of unplanted system. Notably, the oxygen depletion in S. validus CW-MFC reactor during the dark cycle was higher that of other reactors. Results of high-throughput sequencing analysis showed that higher biodiversity was observed in rhizosphere than that of anode material, and the relative abundance of Desulfobulbus sp. and Geobacter sp. has been apparently promoted in the samples of rhizosphere. However, a higher relative abundance of electrochemically active bacteria (Proteobacteria) was observed on the surface of anode electrode material. In addition, microbes (Cytophagales, Clostridium sp., and Dechloromonas sp., and so forth) found in rhizosphere show a capability to decompose refractory contaminants. These contaminants and death roots in the upper part of wetland could be oxidized to fat acids, which may be used as the electrons acceptors for promoting the bioelectricity generation during wastewater treatment.
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Affiliation(s)
- Junfeng Wang
- College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China
| | - Xinshan Song
- College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China.
| | - Yuhui Wang
- College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China.
| | - Junhong Bai
- School of Environment, Beijing Normal University, Beijing 100038, China
| | - Manjie Li
- State Key Laboratory Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
| | - Guoqiang Dong
- College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China
| | - Fanda Lin
- College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China
| | - Yanfeng Lv
- College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China
| | - Denghua Yan
- China Institute of Water Resource and Hydropower Research, Beijing 100038, China
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Engel M, Endesfelder D, Schloter-Hai B, Kublik S, Granitsiotis MS, Boschetto P, Stendardo M, Barta I, Dome B, Deleuze JF, Boland A, Müller-Quernheim J, Prasse A, Welte T, Hohlfeld J, Subramanian D, Parr D, Gut IG, Greulich T, Koczulla AR, Nowinski A, Gorecka D, Singh D, Gupta S, Brightling CE, Hoffmann H, Frankenberger M, Hofer TP, Burggraf D, Heiss-Neumann M, Ziegler-Heitbrock L, Schloter M, zu Castell W. Influence of lung CT changes in chronic obstructive pulmonary disease (COPD) on the human lung microbiome. PLoS One 2017; 12:e0180859. [PMID: 28704452 PMCID: PMC5509234 DOI: 10.1371/journal.pone.0180859] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 06/22/2017] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Changes in microbial community composition in the lung of patients suffering from moderate to severe COPD have been well documented. However, knowledge about specific microbiome structures in the human lung associated with CT defined abnormalities is limited. METHODS Bacterial community composition derived from brush samples from lungs of 16 patients suffering from different CT defined subtypes of COPD and 9 healthy subjects was analyzed using a cultivation independent barcoding approach applying 454-pyrosequencing of 16S rRNA gene fragment amplicons. RESULTS We could show that bacterial community composition in patients with changes in CT (either airway or emphysema type changes, designated as severe subtypes) was different from community composition in lungs of patients without visible changes in CT as well as from healthy subjects (designated as mild COPD subtype and control group) (PC1, Padj = 0.002). Higher abundance of Prevotella in samples from patients with mild COPD subtype and from controls and of Streptococcus in the severe subtype cases mainly contributed to the separation of bacterial communities of subjects. No significant effects of treatment with inhaled glucocorticoids on bacterial community composition were detected within COPD cases with and without abnormalities in CT in PCoA. Co-occurrence analysis suggests the presence of networks of co-occurring bacteria. Four communities of positively correlated bacteria were revealed. The microbial communities can clearly be distinguished by their associations with the CT defined disease phenotype. CONCLUSION Our findings indicate that CT detectable structural changes in the lung of COPD patients, which we termed severe subtypes, are associated with alterations in bacterial communities, which may induce further changes in the interaction between microbes and host cells. This might result in a changed interplay with the host immune system.
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Affiliation(s)
- Marion Engel
- Scientific Computing Research Unit, Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany
- Research Unit Comparative Microbiome Analysis, Helmholtz Zentrum München, Neuherberg, Germany
| | - David Endesfelder
- Scientific Computing Research Unit, Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Brigitte Schloter-Hai
- Research Unit Comparative Microbiome Analysis, Helmholtz Zentrum München, Neuherberg, Germany
| | - Susanne Kublik
- Research Unit Comparative Microbiome Analysis, Helmholtz Zentrum München, Neuherberg, Germany
| | - Michael S. Granitsiotis
- Research Unit Comparative Microbiome Analysis, Helmholtz Zentrum München, Neuherberg, Germany
| | - Piera Boschetto
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | | | - Imre Barta
- Department of Pathophysiology, National Koranyi Institute for TB and Pulmonology, Budapest, Hungary
| | - Balazs Dome
- Department of Pathophysiology, National Koranyi Institute for TB and Pulmonology, Budapest, Hungary
| | | | - Anne Boland
- Centre National de Génotypage, Institut de Génomique, CEA, Evry, France
| | | | - Antje Prasse
- Department of Respiratory Medicine, Hannover Medical School, Hannover, Germany
- Member of the German Center for Lung Research (DZL), Giessen, Germany
| | - Tobias Welte
- Department of Respiratory Medicine, Hannover Medical School, Hannover, Germany
- Member of the German Center for Lung Research (DZL), Giessen, Germany
| | - Jens Hohlfeld
- Department of Respiratory Medicine, Hannover Medical School, Hannover, Germany
- Member of the German Center for Lung Research (DZL), Giessen, Germany
- Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany
| | - Deepak Subramanian
- Department of Respiratory Medicine, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - David Parr
- Department of Respiratory Medicine, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - Ivo Glynne Gut
- CNAG-CRG, Centre for Genomic Regulation, Barcelona Institute for Science and Technology, Barcelona, Spain
| | - Timm Greulich
- Member of the German Center for Lung Research (DZL), Giessen, Germany
- Department of Medicine, Pulmonary and Critical Care Medicine, University Medical Center Giessen and Marburg Philipps-University, Marburg, Germany
| | - Andreas Rembert Koczulla
- Member of the German Center for Lung Research (DZL), Giessen, Germany
- Department of Medicine, Pulmonary and Critical Care Medicine, University Medical Center Giessen and Marburg Philipps-University, Marburg, Germany
| | - Adam Nowinski
- Second Department of Respiratory Medicine, National Tuberculosis and Lung Diseases Research Institute, Warsaw, Poland
| | - Dorota Gorecka
- Second Department of Respiratory Medicine, National Tuberculosis and Lung Diseases Research Institute, Warsaw, Poland
| | - Dave Singh
- University of Manchester, Medicines Evaluation Unit and University Hospital of South Manchester Foundation Trust, Manchester, United Kingdom
| | - Sumit Gupta
- Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
| | - Christopher E. Brightling
- Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
| | - Harald Hoffmann
- Institute of Microbiology and Laboratory Medicine, Synlab MVZ Gauting & IML red GmbH, Gauting, Germany
| | - Marion Frankenberger
- CPC Comprehensive Pneumology Center, Helmholtz Zentrum München, Ludwig-Maximilians Universität und Asklepios Klinik Gauting, Munich, Germany
| | - Thomas P. Hofer
- EvA Study Center, Helmholtz Zentrum Muenchen, Gauting, Germany
| | | | | | | | - Michael Schloter
- Research Unit Comparative Microbiome Analysis, Helmholtz Zentrum München, Neuherberg, Germany
| | - Wolfgang zu Castell
- Scientific Computing Research Unit, Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany
- Department of Mathematics, Technische Universität München, Munich, Germany
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Optimization of Bioelectricity Generation in Constructed Wetland-Coupled Microbial Fuel Cell Systems. WATER 2017. [DOI: 10.3390/w9030185] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Bombelli P, Dennis RJ, Felder F, Cooper MB, Madras Rajaraman Iyer D, Royles J, Harrison STL, Smith AG, Harrison CJ, Howe CJ. Electrical output of bryophyte microbial fuel cell systems is sufficient to power a radio or an environmental sensor. ROYAL SOCIETY OPEN SCIENCE 2016; 3:160249. [PMID: 27853542 PMCID: PMC5098967 DOI: 10.1098/rsos.160249] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2016] [Accepted: 09/26/2016] [Indexed: 06/06/2023]
Abstract
Plant microbial fuel cells are a recently developed technology that exploits photosynthesis in vascular plants by harnessing solar energy and generating electrical power. In this study, the model moss species Physcomitrella patens, and other environmental samples of mosses, have been used to develop a non-vascular bryophyte microbial fuel cell (bryoMFC). A novel three-dimensional anodic matrix was successfully created and characterized and was further tested in a bryoMFC to determine the capacity of mosses to generate electrical power. The importance of anodophilic microorganisms in the bryoMFC was also determined. It was found that the non-sterile bryoMFCs operated with P. patens delivered over an order of magnitude higher peak power output (2.6 ± 0.6 µW m-2) than bryoMFCs kept in near-sterile conditions (0.2 ± 0.1 µW m-2). These results confirm the importance of the microbial populations for delivering electrons to the anode in a bryoMFC. When the bryoMFCs were operated with environmental samples of moss (non-sterile) the peak power output reached 6.7 ± 0.6 mW m-2. The bryoMFCs operated with environmental samples of moss were able to power a commercial radio receiver or an environmental sensor (LCD desktop weather station).
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Affiliation(s)
- Paolo Bombelli
- Department of Biochemistry, University of Cambridge, Hopkins Building, Downing Site, Tennis Court Road, Cambridge CB2 1QW, UK
| | - Ross J. Dennis
- Department of Biochemistry, University of Cambridge, Hopkins Building, Downing Site, Tennis Court Road, Cambridge CB2 1QW, UK
- The Commonwealth Scientific and Industrial Research Organisation (CSIRO), Division of Plant Industry, Canberra, Queensland, Australia
| | - Fabienne Felder
- Department of Biochemistry, University of Cambridge, Hopkins Building, Downing Site, Tennis Court Road, Cambridge CB2 1QW, UK
| | - Matt B. Cooper
- Department of Plant Sciences, University of Cambridge, Downing Site, Downing Street, Cambridge CB2 3EA, UK
| | - Durgaprasad Madras Rajaraman Iyer
- Department of Chemical Engineering, Centre for Bioprocess Engineering Research, University of Cape Town, Rondebosch 7701, Cape Town, South Africa
| | - Jessica Royles
- Department of Plant Sciences, University of Cambridge, Downing Site, Downing Street, Cambridge CB2 3EA, UK
| | - Susan T. L. Harrison
- Department of Chemical Engineering, Centre for Bioprocess Engineering Research, University of Cape Town, Rondebosch 7701, Cape Town, South Africa
| | - Alison G. Smith
- Department of Plant Sciences, University of Cambridge, Downing Site, Downing Street, Cambridge CB2 3EA, UK
| | - C. Jill Harrison
- School of Biological Sciences, University of Bristol, Life Sciences Building, Downing, 24 Tyndall Avenue, Bristol BS8 1TQ, UK
| | - Christopher J. Howe
- Department of Biochemistry, University of Cambridge, Hopkins Building, Downing Site, Tennis Court Road, Cambridge CB2 1QW, UK
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Jangir Y, French S, Momper LM, Moser DP, Amend JP, El-Naggar MY. Isolation and Characterization of Electrochemically Active Subsurface Delftia and Azonexus Species. Front Microbiol 2016; 7:756. [PMID: 27242768 PMCID: PMC4876122 DOI: 10.3389/fmicb.2016.00756] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 05/05/2016] [Indexed: 11/29/2022] Open
Abstract
Continental subsurface environments can present significant energetic challenges to the resident microorganisms. While these environments are geologically diverse, potentially allowing energy harvesting by microorganisms that catalyze redox reactions, many of the abundant electron donors and acceptors are insoluble and therefore not directly bioavailable. Extracellular electron transfer (EET) is a metabolic strategy that microorganisms can deploy to meet the challenges of interacting with redox-active surfaces. Though mechanistically characterized in a few metal-reducing bacteria, the role, extent, and diversity of EET in subsurface ecosystems remains unclear. Since this process can be mimicked on electrode surfaces, it opens the door to electrochemical techniques to enrich for and quantify the activities of environmental microorganisms in situ. Here, we report the electrochemical enrichment of microorganisms from a deep fractured-rock aquifer in Death Valley, CA, USA. In experiments performed in mesocosms containing a synthetic medium based on aquifer chemistry, four working electrodes (WEs) were poised at different redox potentials (272, 373, 472, 572 mV vs. SHE) to serve as electron acceptors, resulting in anodic currents coupled to the oxidation of acetate during enrichment. The anodes were dominated by Betaproteobacteria from the families Comamonadaceae and Rhodocyclaceae. A representative of each dominant family was subsequently isolated from electrode-associated biomass. The EET abilities of the isolated Delftia strain (designated WE1-13) and Azonexus strain (designated WE2-4) were confirmed in electrochemical reactors using WEs poised at 522 mV vs. SHE. The rise in anodic current upon inoculation was correlated with a modest increase in total protein content. Both genera have been previously observed in mixed communities of microbial fuel cell enrichments, but this is the first direct measurement of their electrochemical activity. While alternate metabolisms (e.g., nitrate reduction) by these organisms were previously known, our observations suggest that additional ‘hidden’ interactions with external electron acceptors are also possible. Electrochemical approaches are well positioned to dissect such extracellular interactions that may be prevalent in the subsurface.
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Affiliation(s)
- Yamini Jangir
- Department of Physics and Astronomy, University of Southern California, Los Angeles CA, USA
| | - Sarah French
- Department of Physics and Astronomy, University of Southern California, Los Angeles CA, USA
| | - Lily M Momper
- Department of Biological Sciences, University of Southern California, Los Angeles CA, USA
| | - Duane P Moser
- Division of Earth and Ecosystem Sciences, Desert Research Institute, Las Vegas NV, USA
| | - Jan P Amend
- Department of Biological Sciences, University of Southern California, Los AngelesCA, USA; Department of Earth Sciences, University of Southern California, Los AngelesCA, USA
| | - Mohamed Y El-Naggar
- Department of Physics and Astronomy, University of Southern California, Los AngelesCA, USA; Department of Biological Sciences, University of Southern California, Los AngelesCA, USA; Department of Chemistry, University of Southern California, Los AngelesCA, USA
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Kliot A, Ghanim M. Fluorescent in situ hybridization for the localization of viruses, bacteria and other microorganisms in insect and plant tissues. Methods 2016; 98:74-81. [PMID: 26678796 DOI: 10.1016/j.ymeth.2015.12.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 12/03/2015] [Accepted: 12/06/2015] [Indexed: 12/21/2022] Open
Abstract
Methods for the localization of cellular components such as nucleic acids, proteins, cellular vesicles and more, and the localization of microorganisms including viruses, bacteria and fungi have become an important part of any research program in biological sciences that enable the visualization of these components in fixed and live tissues without the need for complex processing steps. The rapid development of microscopy tools and technologies as well as related fluorescent markers and fluorophores for many cellular components, and the ability to design DNA and RNA sequence-based molecular probes and antibodies which can be visualized fluorescently, have rapidly advanced this field. This review will focus on some of the localizations methods which have been used in plants and insect pests in agriculture, and other microorganisms, which are rapidly advancing the research in agriculture-related fields.
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Affiliation(s)
- Adi Kliot
- Department of Entomology, The Volcani Center, Bet Dagan 50250, Israel
| | - Murad Ghanim
- Department of Entomology, The Volcani Center, Bet Dagan 50250, Israel.
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Ueoka N, Sese N, Sue M, Kouzuma A, Watanabe K. Sizes of Anode and Cathode Affect Electricity Generation in Rice Paddy-Field Microbial Fuel Cells. ACTA ACUST UNITED AC 2016. [DOI: 10.4236/jsbs.2016.61002] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ueoka N, Watanabe K. ELECTROCHEMISTRY 2016; 84:104-106. [DOI: 10.5796/electrochemistry.84.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] Open
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Hubenova Y, Mitov M. Enhanced metabolic and redox activity of vascular aquatic plant Lemna valdiviana under polarization in Direct Photosynthetic Plant Fuel Cell. Bioelectrochemistry 2015; 106:226-31. [DOI: 10.1016/j.bioelechem.2014.07.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 06/08/2014] [Accepted: 07/09/2014] [Indexed: 10/24/2022]
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Monophyletic group of unclassified γ- Proteobacteria dominates in mixed culture biofilm of high-performing oxygen reducing biocathode. Bioelectrochemistry 2015; 106:167-76. [DOI: 10.1016/j.bioelechem.2015.04.004] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 04/01/2015] [Accepted: 04/05/2015] [Indexed: 12/31/2022]
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Uksa M, Schloter M, Endesfelder D, Kublik S, Engel M, Kautz T, Köpke U, Fischer D. Prokaryotes in Subsoil-Evidence for a Strong Spatial Separation of Different Phyla by Analysing Co-occurrence Networks. Front Microbiol 2015; 6:1269. [PMID: 26635741 PMCID: PMC4649028 DOI: 10.3389/fmicb.2015.01269] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 10/30/2015] [Indexed: 02/03/2023] Open
Abstract
Microbial communities in soil provide a wide range of ecosystem services. On the small scale, nutrient rich hotspots in soil developed from the activities of animals or plants are important drivers for the composition of microbial communities and their functional patterns. However, in subsoil, the spatial heterogeneity of microbes with differing lifestyles has been rarely considered so far. In this study, the phylogenetic composition of the bacterial and archaeal microbiome based on 16S rRNA gene pyrosequencing was investigated in the soil compartments bulk soil, drilosphere, and rhizosphere in top- and in the subsoil of an agricultural field. With co-occurrence network analysis, the spatial separation of typically oligotrophic and copiotrophic microbes was assessed. Four bacterial clusters were identified and attributed to bulk topsoil, bulk subsoil, drilosphere, and rhizosphere. The bacterial phyla Proteobacteria and Bacteroidetes, representing mostly copiotrophic bacteria, were affiliated mainly to the rhizosphere and drilosphere—both in topsoil and subsoil. Acidobacteria, Actinobacteria, Gemmatimonadetes, Planctomycetes, and Verrucomicrobia, bacterial phyla which harbor many oligotrophic bacteria, were the most abundant groups in bulk subsoil. The bacterial core microbiome in this soil was estimated to cover 7.6% of the bacterial sequencing reads including both oligotrophic and copiotrophic bacteria. In contrast the archaeal core microbiome includes 56% of the overall archaeal diversity. Thus, the spatial variability of nutrient quality and quantity strongly shapes the bacterial community composition and their interaction in subsoil, whereas archaea build a stable backbone of the soil prokaryotes due to their low variability in the different soil compartments.
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Affiliation(s)
- Marie Uksa
- Research Unit Environmental Genomics, Department of Environmental Science, Helmholtz Zentrum München Oberschleissheim, Germany
| | - Michael Schloter
- Research Unit Environmental Genomics, Department of Environmental Science, Helmholtz Zentrum München Oberschleissheim, Germany
| | - David Endesfelder
- Scientific Computing Research Unit, Institute of Computational Biology, Helmholtz Zentrum München Oberschleissheim, Germany
| | - Susanne Kublik
- Research Unit Environmental Genomics, Department of Environmental Science, Helmholtz Zentrum München Oberschleissheim, Germany
| | - Marion Engel
- Scientific Computing Research Unit, Institute of Computational Biology, Helmholtz Zentrum München Oberschleissheim, Germany
| | - Timo Kautz
- Institute of Organic Agriculture, University of Bonn Bonn, Germany
| | - Ulrich Köpke
- Institute of Organic Agriculture, University of Bonn Bonn, Germany
| | - Doreen Fischer
- Research Unit Environmental Genomics, Department of Environmental Science, Helmholtz Zentrum München Oberschleissheim, Germany
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Doherty L, Zhao Y, Zhao X, Hu Y, Hao X, Xu L, Liu R. A review of a recently emerged technology: Constructed wetland--Microbial fuel cells. WATER RESEARCH 2015; 85:38-45. [PMID: 26295937 DOI: 10.1016/j.watres.2015.08.016] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Revised: 07/22/2015] [Accepted: 08/07/2015] [Indexed: 06/04/2023]
Abstract
Constructed wetlands (CWs) and microbial fuel cells (MFCs) are compatible technologies since both are reliant on the actions of bacteria to remove contaminants from wastewater. MFCs require the anode to remain anaerobic with the cathode exposed to oxygen while these redox conditions can develop naturally in CWs. For this reason, research into combining the two technologies (termed as CW-MFC) has emerged in recent years with the aim of improving the wastewater treatment capacity of wetlands while simultaneously producing electrical power. Based on the published work (although limited), this review aims to provide a timely, current state-of-the-art in CW-MFC while exploring future challenges and research directions.
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Affiliation(s)
- Liam Doherty
- UCD Dooge Centre for Water Resource Research, School of Civil, Structural and Environmental Engineering, University College Dublin, Belfield, Dublin 4, Ireland
| | - Yaqian Zhao
- UCD Dooge Centre for Water Resource Research, School of Civil, Structural and Environmental Engineering, University College Dublin, Belfield, Dublin 4, Ireland; Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas (Ministry of Education), Chang'an University, Xi'an 710054, China.
| | - Xiaohong Zhao
- Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas (Ministry of Education), Chang'an University, Xi'an 710054, China
| | - Yuansheng Hu
- Beijing University of Civil Engineering and Architecture/Beijing Climate Change Research and Education Centre, Beijing 100044, China
| | - Xiaodi Hao
- Beijing University of Civil Engineering and Architecture/Beijing Climate Change Research and Education Centre, Beijing 100044, China
| | - Lei Xu
- UCD Dooge Centre for Water Resource Research, School of Civil, Structural and Environmental Engineering, University College Dublin, Belfield, Dublin 4, Ireland
| | - Ranbin Liu
- UCD Dooge Centre for Water Resource Research, School of Civil, Structural and Environmental Engineering, University College Dublin, Belfield, Dublin 4, Ireland
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43
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Lu L, Xing D, Ren ZJ. Microbial community structure accompanied with electricity production in a constructed wetland plant microbial fuel cell. BIORESOURCE TECHNOLOGY 2015; 195:115-121. [PMID: 26066972 DOI: 10.1016/j.biortech.2015.05.098] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 05/29/2015] [Accepted: 05/30/2015] [Indexed: 06/04/2023]
Abstract
This study reveals the complex structure of bacterial and archaeal communities associated with a Canna indica plant microbial fuel cell (PMFC) and its electricity production. The PMFC produced a maximum current of 105 mA/m(2) by utilizing rhizodeposits as the sole electron donor without any external nutrient or buffer supplements, which demonstrates the feasibility of PMFCs in practical oligotrophic conditions with low solution conductivity. The microbial diversity was significantly higher in the PMFC than non-plant controls or sediment-only controls, and pyrosequencing and clone library reveal that rhizodeposits conversion to current were carried out by syntrophic interactions between fermentative bacteria (e.g., Anaerolineaceae) and electrochemically active bacteria (e.g., Geobacter). Denitrifying bacteria and acetotrophic methanogens play a minor role in organics degradation, but abundant hydrogenotrophic methanogens and thermophilic archaea are likely main electron donor competitors.
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Affiliation(s)
- Lu Lu
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, CO 80309, USA
| | - Defeng Xing
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China
| | - Zhiyong Jason Ren
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, CO 80309, USA.
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44
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Zeiller M, Rothballer M, Iwobi AN, Böhnel H, Gessler F, Hartmann A, Schmid M. Systemic colonization of clover (Trifolium repens) by Clostridium botulinum strain 2301. Front Microbiol 2015; 6:1207. [PMID: 26583010 PMCID: PMC4628109 DOI: 10.3389/fmicb.2015.01207] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 10/16/2015] [Indexed: 12/11/2022] Open
Abstract
In recent years, cases of botulism in cattle and other farm animals and also in farmers increased dramatically. It was proposed, that these cases could be affiliated with the spreading of compost or other organic manures contaminated with Clostridium botulinum spores on farm land. Thus, soils and fodder plants and finally farm animals could be contaminated. Therefore, the colonization behavior and interaction of the botulinum neurotoxin (BoNT D) producing C. botulinum strain 2301 and the non-toxin producing Clostridium sporogenes strain 1739 were investigated on clover (Trifolium repens) in a field experiment as well as in phytochamber experiments applying axenic and additionally soil based systems under controlled conditions. Plants were harvested and divided into root and shoot parts for further DNA isolation and polymerase chain reaction (PCR) assays; subsamples were fixed for fluorescence in situ hybridization analysis in combination with confocal laser scanning microscopy. In addition, we observed significant differences in the growth behavior of clover plants when inoculated with clostridial spores, indicating a plant growth promoting effect. Inoculated plants showed an increased growth index (shoot size, wet and dry weight) and an enlarged root system induced by the systemic colonization of clover by C. botulinum strain 2301. To target C. botulinum and C. sporogenes, 16S rDNA directed primers were used and to specifically detect C. botulinum, BoNT D toxin genes targeted primers, using a multiplex PCR approach, were applied. Our results demonstrate an effective colonization of roots and shoots of clover by C. botulinum strain 2301 and C. sporogenes strain 1739. Detailed analysis of colonization behavior showed that C. botulinum can occur as individual cells, in cell clusters and in microcolonies within the rhizosphere, lateral roots and within the roots tissue of clover.
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Affiliation(s)
- Matthias Zeiller
- Research Unit Microbe-Plant Interactions, Department for Environmental Sciences, German Research Center for Environmental Health - Helmholtz Zentrum München Neuherberg, Germany
| | - Michael Rothballer
- Research Unit Microbe-Plant Interactions, Department for Environmental Sciences, German Research Center for Environmental Health - Helmholtz Zentrum München Neuherberg, Germany
| | - Azuka N Iwobi
- Bavarian Health and Food Safety Authority Oberschleißheim, Germany
| | - Helge Böhnel
- Institute for Applied Biotechnology in the Tropics at the Georg-August University Goettingen Goettingen, Germany
| | - Frank Gessler
- Institute for Applied Biotechnology in the Tropics at the Georg-August University Goettingen Goettingen, Germany ; miprolab GmbH Goettingen, Germany
| | - Anton Hartmann
- Research Unit Microbe-Plant Interactions, Department for Environmental Sciences, German Research Center for Environmental Health - Helmholtz Zentrum München Neuherberg, Germany
| | - Michael Schmid
- Research Unit Microbe-Plant Interactions, Department for Environmental Sciences, German Research Center for Environmental Health - Helmholtz Zentrum München Neuherberg, Germany
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45
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Xu C, Poon K, Choi MMF, Wang R. Using live algae at the anode of a microbial fuel cell to generate electricity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:15621-35. [PMID: 26018284 DOI: 10.1007/s11356-015-4744-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 05/18/2015] [Indexed: 05/07/2023]
Abstract
Live green microalgae Chlorella pyrenoidosa was introduced in the anode of a microbial fuel cell (MFC) to act as an electron donor. By controlling the oxygen content, light intensity, and algal cell density at the anode, microalgae would generate electricity without requiring externally added substrates. Two models of algal microbial fuel cells (MFCs) were constructed with graphite/carbon electrodes and no mediator. Model 1 algal MFC has live microalgae grown at the anode and potassium ferricyanide at the cathode, while model 2 algal MFC had live microalgae in both the anode and cathode in different growth conditions. Results indicated that a higher current produced in model 1 algal MFC was obtained at low light intensity of 2500 lx and algal cell density of 5 × 10(6) cells/ml, in which high algal density would limit the electricity generation, probably by increasing oxygen level and mass transfer problem. The maximum power density per unit anode volume obtained in model 1 algal MFC was relatively high at 6030 mW/m(2), while the maximum power density at 30.15 mW/m(2) was comparable with that of previous reported bacteria-driven MFC with graphite/carbon electrodes. A much smaller power density at 2.5 mW/m(2) was observed in model 2 algal MFC. Increasing the algal cell permeability by 4-nitroaniline would increase the open circuit voltage, while the mitochondrial acting and proton leak promoting agents resveratrol and 2,4-dinitrophenol would increase the electric current production in algal MFC.
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Affiliation(s)
- Chang Xu
- Program of Food Science and Technology, Division of Science and Technology, BNU-HKBU United International College, 28 Jinfeng Road, Tangjiawan, Zhuhai, Guangdong, China.
- Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, Hong Kong, SAR, China.
| | - Karen Poon
- Program of Food Science and Technology, Division of Science and Technology, BNU-HKBU United International College, 28 Jinfeng Road, Tangjiawan, Zhuhai, Guangdong, China.
| | - Martin M F Choi
- Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, Hong Kong, SAR, China.
| | - Ruihua Wang
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital South Campus, 6600 Nanfeng Road, Fengxian District, Shanghai, China, 201499.
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46
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Cabezas A, Pommerenke B, Boon N, Friedrich MW. Geobacter, Anaeromyxobacter and Anaerolineae populations are enriched on anodes of root exudate-driven microbial fuel cells in rice field soil. ENVIRONMENTAL MICROBIOLOGY REPORTS 2015; 7:489-497. [PMID: 25683328 DOI: 10.1111/1758-2229.12277] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Accepted: 01/31/2015] [Indexed: 06/04/2023]
Abstract
Plant-based sediment microbial fuel cells (PMFCs) couple the oxidation of root exudates in living rice plants to current production. We analysed the composition of the microbial community on anodes from PMFC with natural rice field soil as substratum for rice by analysing 16S rRNA as an indicator of microbial activity and diversity. Terminal restriction fragment length polymorphism (TRFLP) analysis indicated that the active bacterial community on anodes from PMFCs differed strongly compared with controls. Moreover, clones related to Deltaproteobacteria and Chloroflexi were highly abundant (49% and 21%, respectively) on PMFCs anodes. Geobacter (19%), Anaeromyxobacter (15%) and Anaerolineae (17%) populations were predominant on anodes with natural rice field soil and differed strongly from those previously detected with potting soil. In open circuit (OC) control PMFCs, not allowing electron transfer, Deltaproteobacteria (33%), Betaproteobacteria (20%), Chloroflexi (12%), Alphaproteobacteria (10%) and Firmicutes (10%) were detected. The presence of an electron accepting anode also had a strong influence on methanogenic archaea. Hydrogenotrophic methanogens were more active on PMFC (21%) than on OC controls (10%), whereas acetoclastic Methanosaetaceae were more active on OC controls (31%) compared with PMFCs (9%). In conclusion, electron accepting anodes and rice root exudates selected for distinct potential anode-reducing microbial populations in rice soil inoculated PMFC.
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Affiliation(s)
- Angela Cabezas
- Max-Planck-Institute for Terrestrial Microbiology, Karl-von-Frisch-Straße 10, Marburg, D-35043, Germany
| | - Bianca Pommerenke
- Max-Planck-Institute for Terrestrial Microbiology, Karl-von-Frisch-Straße 10, Marburg, D-35043, Germany
| | - Nico Boon
- Laboratory of Microbial Ecology and Technology (LabMET), Ghent University, Coupure Links 653, Ghent, 9000, Belgium
| | - Michael W Friedrich
- Max-Planck-Institute for Terrestrial Microbiology, Karl-von-Frisch-Straße 10, Marburg, D-35043, Germany
- Microbial Ecophysiology, Faculty of Biology/Chemistry, University of Bremen, Bremen, D-28334, Germany
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47
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Li SL, Nealson KH. Enriching distinctive microbial communities from marine sediments via an electrochemical-sulfide-oxidizing process on carbon electrodes. Front Microbiol 2015; 6:111. [PMID: 25741331 PMCID: PMC4330880 DOI: 10.3389/fmicb.2015.00111] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2014] [Accepted: 01/29/2015] [Indexed: 11/13/2022] Open
Abstract
Sulfide is a common product of marine anaerobic respiration, and a potent reactant biologically and geochemically. Here we demonstrate the impact on microbial communities with the removal of sulfide via electrochemical methods. The use of differential pulse voltammetry revealed that the oxidation of soluble sulfide was seen at +30 mV (vs. SHE) at all pH ranges tested (from pH = 4 to 8), while non-ionized sulfide, which dominated at pH = 4 was poorly oxidized via this process. Two mixed cultures (CAT and LA) were enriched from two different marine sediments (from Catalina Island, CAT; from the Port of Los Angeles, LA) in serum bottles using a seawater medium supplemented with lactate, sulfate, and yeast extract, to obtain abundant biomass. Both CAT and LA cultures were inoculated in electrochemical cells (using yeast-extract-free seawater medium as an electrolyte) equipped with carbon-felt electrodes. In both cases, when potentials of +630 or +130 mV (vs. SHE) were applied, currents were consistently higher at +630 then at +130 mV, indicating more sulfide being oxidized at the higher potential. In addition, higher organic-acid and sulfate conversion rates were found at +630 mV with CAT, while no significant differences were found with LA at different potentials. The results of microbial-community analyses revealed a decrease in diversity for both CAT and LA after electrochemical incubation. In addition, some bacteria (e.g., Clostridium and Arcobacter) not well-known to be capable of extracellular electron transfer, were found to be dominant in the electrochemical cells. Thus, even though the different mixed cultures have different tolerances for sulfide, electrochemical-sulfide removal can lead to major population changes.
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Affiliation(s)
- Shiue-Lin Li
- Department of Earth Science, University of Southern California Los Angeles, CA, USA
| | - Kenneth H Nealson
- Department of Earth Science, University of Southern California Los Angeles, CA, USA
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Kouzuma A, Kaku N, Watanabe K. Microbial electricity generation in rice paddy fields: recent advances and perspectives in rhizosphere microbial fuel cells. Appl Microbiol Biotechnol 2014; 98:9521-6. [DOI: 10.1007/s00253-014-6138-0] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 10/03/2014] [Accepted: 10/06/2014] [Indexed: 11/29/2022]
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49
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Walker A, Pfitzner B, Neschen S, Kahle M, Harir M, Lucio M, Moritz F, Tziotis D, Witting M, Rothballer M, Engel M, Schmid M, Endesfelder D, Klingenspor M, Rattei T, Castell WZ, de Angelis MH, Hartmann A, Schmitt-Kopplin P. Distinct signatures of host-microbial meta-metabolome and gut microbiome in two C57BL/6 strains under high-fat diet. ISME JOURNAL 2014; 8:2380-96. [PMID: 24906017 DOI: 10.1038/ismej.2014.79] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 03/25/2014] [Accepted: 04/07/2014] [Indexed: 01/06/2023]
Abstract
A combinatory approach using metabolomics and gut microbiome analysis techniques was performed to unravel the nature and specificity of metabolic profiles related to gut ecology in obesity. This study focused on gut and liver metabolomics of two different mouse strains, the C57BL/6J (C57J) and the C57BL/6N (C57N) fed with high-fat diet (HFD) for 3 weeks, causing diet-induced obesity in C57N, but not in C57J mice. Furthermore, a 16S-ribosomal RNA comparative sequence analysis using 454 pyrosequencing detected significant differences between the microbiome of the two strains on phylum level for Firmicutes, Deferribacteres and Proteobacteria that propose an essential role of the microbiome in obesity susceptibility. Gut microbial and liver metabolomics were followed by a combinatory approach using Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) and ultra performance liquid chromatography time of tlight MS/MS with subsequent multivariate statistical analysis, revealing distinctive host and microbial metabolome patterns between the C57J and the C57N strain. Many taurine-conjugated bile acids (TBAs) were significantly elevated in the cecum and decreased in liver samples from the C57J phenotype likely displaying different energy utilization behavior by the bacterial community and the host. Furthermore, several metabolite groups could specifically be associated with the C57N phenotype involving fatty acids, eicosanoids and urobilinoids. The mass differences based metabolite network approach enabled to extend the range of known metabolites to important bile acids (BAs) and novel taurine conjugates specific for both strains. In summary, our study showed clear alterations of the metabolome in the gastrointestinal tract and liver within a HFD-induced obesity mouse model in relation to the host-microbial nutritional adaptation.
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Affiliation(s)
- Alesia Walker
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Barbara Pfitzner
- Research Unit Microbe-Plant Interactions, Research Group Molecular Microbial Ecology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Susanne Neschen
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Melanie Kahle
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Mourad Harir
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Marianna Lucio
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Franco Moritz
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Dimitrios Tziotis
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Michael Witting
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Michael Rothballer
- Research Unit Microbe-Plant Interactions, Research Group Molecular Microbial Ecology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Marion Engel
- Research Unit Environmental Genomics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Michael Schmid
- Research Unit Microbe-Plant Interactions, Research Group Molecular Microbial Ecology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - David Endesfelder
- Scientific Computing Research Unit, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Martin Klingenspor
- Technische Universität München, Molecular Nutritional Medicine, Else Kröner-Fresenius Center and ZIEL Research Center for Nutrition and Food Sciences, Freising-Weihenstephan, Germany
| | - Thomas Rattei
- Department of Computational Systems Biology, University of Vienna, Vienna, Austria
| | - Wolfgang Zu Castell
- Scientific Computing Research Unit, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Martin Hrabé de Angelis
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Anton Hartmann
- Research Unit Microbe-Plant Interactions, Research Group Molecular Microbial Ecology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Philippe Schmitt-Kopplin
- 1] Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany [2] Technische Universität München, Chair of Analytical Food Chemistry, Freising-Weihenstephan, Germany
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50
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Dynamics of soil bacterial communities in response to repeated application of manure containing sulfadiazine. PLoS One 2014; 9:e92958. [PMID: 24671113 PMCID: PMC3966856 DOI: 10.1371/journal.pone.0092958] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 02/27/2014] [Indexed: 11/30/2022] Open
Abstract
Large amounts of manure have been applied to arable soils as fertilizer worldwide. Manure is often contaminated with veterinary antibiotics which enter the soil together with antibiotic resistant bacteria. However, little information is available regarding the main responders of bacterial communities in soil affected by repeated inputs of antibiotics via manure. In this study, a microcosm experiment was performed with two concentrations of the antibiotic sulfadiazine (SDZ) which were applied together with manure at three different time points over a period of 133 days. Samples were taken 3 and 60 days after each manure application. The effects of SDZ on soil bacterial communities were explored by barcoded pyrosequencing of 16S rRNA gene fragments amplified from total community DNA. Samples with high concentration of SDZ were analyzed on day 193 only. Repeated inputs of SDZ, especially at a high concentration, caused pronounced changes in bacterial community compositions. By comparison with the initial soil, we could observe an increase of the disturbance and a decrease of the stability of soil bacterial communities as a result of SDZ manure application compared to the manure treatment without SDZ. The number of taxa significantly affected by the presence of SDZ increased with the times of manure application and was highest during the treatment with high SDZ-concentration. Numerous taxa, known to harbor also human pathogens, such as Devosia, Shinella, Stenotrophomonas, Clostridium, Peptostreptococcus, Leifsonia, Gemmatimonas, were enriched in the soil when SDZ was present while the abundance of bacteria which typically contribute to high soil quality belonging to the genera Pseudomonas and Lysobacter, Hydrogenophaga, and Adhaeribacter decreased in response to the repeated application of manure and SDZ.
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