RELATIONSHIP BETWEEN CURRENT ACQUISITION AND ANODE POTENTIAL BY SEDIMENT MICROBIAL FUEL CELL WITH SUFFICIENT CATHODE PERFORMANCE

Abstract

 This study deals with sediment microbial fuel cell (SMFC) as a technique for purifying (reducing suppression) sediment by obtaining electric power from organically-enriched sediment in coastal areas. Other studies have shown that performance of SMFC is strongly dependent on the efficiency of consuming electrons harvested from anode to cathode. In this study, the current acquisition and the increase of the anode potential were evaluated at the local scale by SMFC with sufficient cathode performance. After that, possibility of development of bio-cathode was examined by clarifying change in performance of cathode electrode used in the field via V-I test. As a result, it has been found that the cathode having a high performance can suppress the diffusion of electrons from the sediment layer to efficiently recover electrons, and attached algae onto cathode reduce electrode deterioration at the field.