title: Power generation capabilities of microbial fuel cells with different oxygen supplies in the cathodic chamber.
abstract: Two microbial fuel cells (MFCs) inoculated with activated sludge of a wastewater treatment plant were constructed. Oxygen was provided by mechanical aeration in the cathodic chamber of one MFC, whereas it was obtained by the photosynthesis of algae in the other. Electrogenic capabilities of both MFCs were compared under the same operational conditions. Results showed that the MFC with mechanical aeration in the cathodic chamber displayed higher power output than the one with photosynthesis of algae. Good linear relationship between power density and chemical oxygen demand (COD) loading rate was obtained only on the MFC with mechanical aeration. Furthermore, the relationships between power density and effluent COD and between Coulombic efficiency and COD loading rate can only be expressed as binary quadratic equations for the MFC with mechanical aeration and not for the one with photosynthesis of algae.
authors.affiliation: Department of Health Business Administration, Meiho University, Neipu, Ping Tung, Taiwan, Republic of China. x00002060@email.meiho.edu.tw
authors.forename: Der-Fong
authors.initials: DF
authors.lastname: Juang
authors.forename: Chao-Hsien
authors.initials: CH
authors.lastname: Lee
authors.forename: Shu-Chun
authors.initials: SC
authors.lastname: Hsueh
authors.forename: Huei-Yin
authors.initials: HY
authors.lastname: Chou
mesh_terms: D001674:Bioelectric Energy Sources / Q000382:microbiology*; D002708:Chlorella / Q000378:metabolism; D000458:Cyanobacteria / Q000378:metabolism; D004566:Electrodes; D005240:Feasibility Studies; D055595:Mechanical Phenomena; D010100:Oxygen / Q000737:chemistry* / Q000378:metabolism*; D010788:Photosynthesis; D014865:Waste Disposal, Fluid
chemical_list: D010100:Oxygen