Resourceful Treatment of Dioscorea zingiberensis Wastewater Using a Double-Chamber Microbial Fuel Cell

Abstract:

A double-chamber microbial fuel cell (MFC) was used to dispose Dioscorea Zingiberensis wastewater and retrieve electrical energy. Both electrical performance and contaminant degradation characteristics were investigated. The potential of the MFC achieved 0.50-0.55 V over a 1000 ohm resistance, and the Coulombic efficiency was 7.01% or so. The maximum power density was about 350 mW/m². During the operation cycle, COD was removed 82.6% and 10.9% in the anodic and cathodic chamber, respectively. In anodic chamber, simple acid, sugars and cellulose in wastewater were utilized while complicated organic matters including furanic and aromatic compounds were broken down by breaking side-chains and opening rings. In cathodic chamber, fatty ester and alkene were removed while aromatic compounds were degraded further. The results indicate that MFC provides a new approach for resource recovery treatment of Dioscorea Zingiberensis wastewater.

• Periodical: Advanced Materials Research (Volumes 602-604)
• Pages: 1081-1085
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.602-604.1081
• Online since: December 2012
• Authors: Hui Li, Zheng Fang
• Keywords: Dioscorea zingiberensis Wastewater, Electricity Generation, Microbial Fuel Cell (MFC), Organic Contaminant Degradation, Wastewater Treatment

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