scholarly journals Electricity production and the analysis of the anode microbial community in a constructed wetland-microbial fuel cell

RSC Advances ◽  
2019 ◽  
Vol 9 (37) ◽  
pp. 21460-21472 ◽  
Author(s):  
Guozhen Wang ◽  
Yating Guo ◽  
Jiaying Cai ◽  
Hongyu Wen ◽  
Zhen Mao ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Community ◽  
Constructed Wetlands ◽  
Microbial Fuel Cells ◽  
Bacterial Communities ◽  
Pollutant Removal ◽  
Electricity Production ◽  
Synthetic Wastewater ◽  
Bioelectricity Generation ◽  
Different Types

The objective of this study is to assess bioelectricity generation, pollutant removal and the bacterial communities on anodes in constructed wetlands coupled with microbial fuel cells, through feeding the systems with three different types of synthetic wastewater.

scholarly journals Feasibility study of simultaneous azo dye decolorization and bioelectricity generation by microbial fuel cell-coupled constructed wetland: substrate effects

RSC Advances ◽  
2017 ◽  
Vol 7 (27) ◽  
pp. 16542-16552 ◽  
Author(s):  
Zhou Fang ◽  
Sichao Cheng ◽  
Hui Wang ◽  
Xian Cao ◽  
Xianning Li
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Constructed Wetlands ◽  
Microbial Fuel Cells ◽  
Azo Dye ◽  
Dye Decolorization ◽  
Dye Wastewater ◽  
Substrate Effects ◽  
Bioelectricity Generation ◽  
Azo Dye Decolorization

Microbial fuel cells (MFCs) were embedded into constructed wetlands to form microbial fuel cell coupled constructed wetlands (CW-MFCs) and were used for simultaneous azo dye wastewater treatment and bioelectricity generation.

scholarly journals Effects of Misgurnus anguillicaudatus and Cipangopaludina cathayensis on Pollutant Removal and Microbial Community in Constructed Wetlands

Water ◽  
2015 ◽  
Vol 7 (12) ◽  
pp. 2422-2434 ◽  
Author(s):  
Pengfei Li ◽  
Jian Zhang ◽  
Huijun Xie ◽  
Zhen Hu ◽  
Haiyan He ◽  
...  
Keyword(s):  
Microbial Community ◽  
Constructed Wetlands ◽  
Pollutant Removal ◽  
Misgurnus Anguillicaudatus

scholarly journals Macroporous monolithic Magnéli-phase titanium suboxides as anode material for effective bioelectricity generation in microbial fuel cells

2016 ◽  
Vol 4 (46) ◽  
pp. 18002-18007 ◽  
Author(s):  
Ming Ma ◽  
Shijie You ◽  
Guoshuai Liu ◽  
Jiuhui Qu ◽  
Nanqi Ren
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Anode Material ◽  
Microbial Fuel Cells ◽  
Bioelectricity Generation ◽  
Magnéli Phase ◽  
Magneli Phase

Macroporous monolithic Magnéli-phase titanium suboxides promote bioelectricity generation of microbial fuel cell.

Influence of nitrogen limitation on performance of a microbial fuel cell

2011 ◽  
Vol 63 (8) ◽  
pp. 1752-1757 ◽  
Author(s):  
P. Belleville ◽  
P. J. Strong ◽  
P. H. Dare ◽  
D. J. Gapes
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Microbial Fuel Cells ◽  
Nitrogen Limitation ◽  
Synthetic Wastewater ◽  
Stable Operation ◽  
Treatment Technology ◽  
Fuel Cell Performance ◽  
Nitrogen Levels

We describe the operation of a microbial fuel cell (MFC) system operating on a synthetic wastewater (acetic acid), under conditions of increasing nitrogen limitation. Two MFCs were operated under feed conditions which spanned a range of TKN/COD values of 1.6–28 mg/g. Stable operation was observed in all cases, even when no ammoniacal nitrogen was added to the cell. Improved electrochemical performance (measured as power density, W/m2) was observed as nitrogen limitation was imposed on the cells. Even with no ammonium addition, continuous function of the cell was maintained, at levels consistent with operation at balanced nutrient supplementation. The work has implicated biological nitrogen fixation as a potential source of nitrogen within the MFC. Whilst this hypothesis has yet to be confirmed, the work highlights the opportunity for continuous operation of microbial fuel cells utilising wastewaters with extremely low nitrogen levels, present in pulp and paper, pharmaceutical and petrochemical industries. Further, the described increases in some of the electrochemical indices (e.g. power density) under application of nitrogen limitation may provide a new approach to increasing fuel cell performance. Finally, the lack of any need to add supplemental nitrogen to a MFC-based wastewater treatment technology holds potential for significant financial and environmental savings.

scholarly journals Impact of long-term industrial contamination on the bacterial communities in urban river sediments

2020 ◽  
Author(s):  
Lei Zhang ◽  
Demei Tu ◽  
Xingchen Li ◽  
Wenxuan Lu ◽  
Jing Li
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Bacterial Community ◽  
Bacterial Communities ◽  
Industrial Pollution ◽  
River Sediments ◽  
Urban River ◽  
Industrial Contamination ◽  
Different Types

Abstract Background: The contamination of the aquatic environment of urban rivers with industrial wastewater has affected the abiotic conditions and biological activities of the trophic levels of the ecosystem, particularly sediments. However, most current research about microorganism in urban aquatic environments has focused on indicator bacteria related to feces and organic pollution. Meanwhile, they ignored the interactions among microorganisms. To deeply understand the impact of industrial contamination on microbial community, we study the bacterial community structure and diversity in river sediments under the influence of different types of industrial pollution by Illumina MiSeq high-throughput sequencing technology and conduct a more detailed analysis of microbial community structure through co-occurrence networks.Results: The overall community composition and abundance of individual bacterial groups differed between samples. In addition, redundancy analysis indicated that the structure of the bacterial community in river sediments was influenced by a variety of environmental factors. TN, TP, TOC and metals (Cu, Zn and Cd) were the most important driving factors that determined the bacterial community in urban river sediments (P <0.01). According to PICRUSt analysis, the bacterial communities in different locations had similar overall functional profiles. It is worth noting that the 15 functional genes related to xenobiotics biodegradation and metabolism were the most abundant in the same location. The non-random assembly patterns of bacterial composition in different types of industrially polluted sediments were determined by a co-occurrence network. Environmental conditions resulting from different industrial pollutants may play an important role in determining their co-occurrence patterns of these bacterial taxa. Among them, the bacterial taxa involved in carbon and nitrogen cycles in module I were relatively abundant, and the bacterial taxa in module II were involved in the repair of metal pollution.Conclusions: Our data indicate that long-term potential interactions between different types of industrial pollution and taxa collectively affect the structure of the bacterial community in urban river sediments.

scholarly journals Wastewater Treatment and Electricity Production in a Microbial Fuel Cell with Cu–B Alloy as the Cathode Catalyst

Catalysts ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 572 ◽  
Author(s):  
Paweł P. Włodarczyk ◽  
Barbara Włodarczyk
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Microbial Fuel Cells ◽  
Oxygen Demand ◽  
Electricity Production ◽  
Cathode Catalyst ◽  
Similar Reduction ◽  
Fuel Cell Operation

The possibility of wastewater treatment and electricity production using a microbial fuel cell with Cu–B alloy as the cathode catalyst is presented in this paper. Our research covered the catalyst preparation; measurements of the electroless potential of electrodes with the Cu–B catalyst, measurements of the influence of anodic charge on the catalytic activity of the Cu–B alloy, electricity production in a microbial fuel cell (with a Cu–B cathode), and a comparison of changes in the concentration of chemical oxygen demand (COD), NH4+, and NO3– in three reactors: one excluding aeration, one with aeration, and during microbial fuel cell operation (with a Cu–B cathode). During the experiments, electricity production equal to 0.21–0.35 mA·cm−2 was obtained. The use of a microbial fuel cell (MFC) with Cu–B offers a similar reduction time for COD to that resulting from the application of aeration. The measured reduction of NH4+ was unchanged when compared with cases employing MFCs, and it was found that effectiveness of about 90% can be achieved for NO3– reduction. From the results of this study, we conclude that Cu–B can be employed to play the role of a cathode catalyst in applications of microbial fuel cells employed for wastewater treatment and the production of electricity.

Pollutant removal and bioelectricity generation from urban river sediment using a macrophyte cathode sediment microbial fuel cell (mSMFC)

2019 ◽  
Vol 128 ◽  
pp. 241-251 ◽  
Author(s):  
Felix Tetteh Kabutey ◽  
Jing Ding ◽  
Qingliang Zhao ◽  
Philip Antwi ◽  
Frank Koblah Quashie ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
River Sediment ◽  
Urban River ◽  
Pollutant Removal ◽  
Sediment Microbial Fuel Cell ◽  
Bioelectricity Generation
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