Factors affecting the performance of microbial fuel cells for sulfide and vanadium (V) treatment.
Sulfide and vanadium (V) are pollutants commonly found in wastewaters. A novel approach has been investigated using microbial fuel cell (MFC) technologies by employing sulfide and V(V) as electron donor and acceptor, respectively. This results in oxidizing sulfide and deoxidizing V(V) simultaneously. A series of operating parameters as initial concentration, conductivity, pH, external resistance were carefully examined. The results showed that these factors greatly affected the performance of the MFCs. The average removal rates of about 82.2 and 26.1% were achieved within 72 h operation for sulfide and V(V), respectively, which were accompanied by the maximum power density of about 614.1 mW m(-2) under all tested conditions. The products generated during MFC operation could be deposited, resulting in removing sulfide and V(V) from wastewaters thoroughly.
Zhang
Bao-Gang
BG
Department of Environmental Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, 100871 Beijing, China.
Zhou
Shun-Gui
SG
Zhao
Hua-Zhang
HZ
Shi
Chun-Hong
CH
Kong
Ling-Cai
LC
Sun
Juan-Juan
JJ
Yang
Yang
Y
Ni
Jin-Ren
JR