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Bioelectricity production from food waste leachate using microbial fuel cells: Effect of NaCl and pH
Journal article   Peer reviewed

Bioelectricity production from food waste leachate using microbial fuel cells: Effect of NaCl and pH

X.M. Li, K.Y. Cheng and J.W.C. Wong
Bioresource Technology, Vol.149, pp.452-458
2013
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Abstract

Microbial fuel cells are a promising technology for simultaneous treatment and energy recovery from food waste leachate. This study evaluates the effects of NaCl (0-150 mM) and pH on the treatment of food waste leachate using microbial fuel cells. The food waste leachate amended with 100mM NaCl enabled the highest maximum power density (1000 mW/m(3)) and lowest internal resistance (371Ω). Increasing the anodic pH gradually from acidic to alkaline conditions (pH 4-9) resulted in a gradual increase in maximum power density to 9956 mW/m(3) and decrease in internal cell resistance to 35.3Ω. The coulombic efficiency obtained under acidic conditions was only 17.8%, but increased significantly to 60.0% and 63.4% in the neutral and alkaline pH's MFCs, respectively. Maintaining a narrow pH window (6.3-7.6) was essential for efficient bioelectricity production and COD removal using microbial fuel cells for the treatment of food waste leachate.

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UN Sustainable Development Goals (SDGs)

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#7 Affordable and Clean Energy

Source: InCites

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Collaboration types
Domestic collaboration
International collaboration
Citation topics
3 Agriculture, Environment & Ecology
3.83 Bioengineering
3.83.1487 Microbial Fuel Cell
Web Of Science research areas
Agricultural Engineering
Biotechnology & Applied Microbiology
Energy & Fuels
ESI research areas
Biology & Biochemistry
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