ABSTRACT
Microbial fuel cells (MFCs) are devices that use bacteria as catalysts to oxidize organic and inorganic matter and generate current (Logan B E et al. 2006). Bio-cathode MFC is a sustainable technology. It uses bacteria as the catalyst and oxygen as the electron acceptor. Dissolved oxygen is essential for the cathodic reaction (Freguia S et al. 2007). Conventionally, oxygen was supplied by spurring air to cathodic solution. It is not energy effective. He and co-workers have designed a sediment MFC with a rotating cathode (Shao & Angenent 2007) and used it for power generation and ammonium production (He, Z. et al. 2009). The aim of this study was to manufacture a rotating bio-cathode MFC in two chambers that can improve electricity generation and Coulombic efficiency by rotating the bio-cathode.
