Mustard tuber wastewater treatment and simultaneous electricity generation using microbial fuel cells

•Mustard tuber wastewater was used as fuel in microbial fuel cells.•Correlation between primary clarifier effluent and Rint was concluded.•Comparatively, S1 was the most appropriate fuel for electricity generation.•Microbial fuel cells were capable of resisting load shock. Mustard tuber wastewater (...

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Bibliographic Details
Published in:Bioresource technology 2013-05, Vol.136, p.425-430
Main Authors: Guo, Fei, Fu, Guokai, Zhang, Zhi, Zhang, Chunling
Format: Article
Language:English
Subjects:
Applied sciences
Bio-energy recovery
Biochemical fuel cells
Bioelectric Energy Sources - microbiology
Biofuel production
Biological and medical sciences
Biological Oxygen Demand Analysis
Biotechnology
Correlation
Crack opening displacement
Effluents
Electric Impedance
Electric power generation
Electricity
Electrodes
Energy
Exact sciences and technology
Fuels
Fundamental and applied biological sciences. Psychology
Industrial applications and implications. Economical aspects
Internal resistance
Microbial fuel cell
Microorganisms
Mustard Plant - chemistry
Mustard tuber wastewater
Organic Chemicals - isolation & purification
Organic matter degradation
Plant Tubers - chemistry
Pollution
Waste Disposal, Fluid
Waste Water - microbiology
Wastewater treatment
Wastewaters
Water Purification - methods
Water treatment and pollution
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Summary:•Mustard tuber wastewater was used as fuel in microbial fuel cells.•Correlation between primary clarifier effluent and Rint was concluded.•Comparatively, S1 was the most appropriate fuel for electricity generation.•Microbial fuel cells were capable of resisting load shock. Mustard tuber wastewater (MTWW) was utilized as fuel in the typical dual-chamber microbial fuel cells (MFCs) to recover bio-energy and to obtain effluent treatment simultaneously. The whole experiment was divided into four phases characterized by increasing contents of primary clarifier effluent (PCE). Results showed substrate1, with which MFC generated a maximum power density of 246mW/m2, was the most appropriate fuel in terms of power recovery and the internal resistance and columbic efficiency were 121Ω and 67.7±1%, respectively. When feeding MFCs with substrate4, 85±0% of COD could be removed, which was the highest COD removal, however, the power retrieve efficiency was much lower. Interestingly, significantly negative correlation (P
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2013.02.116