Efficient decolorization of real dye wastewater and bioelectricity generation using a novel single chamber biocathode-microbial fuel cell.
Large scale applications of microbial fuel cells (MFCs) have been severely hindered by several problems such as high internal resistance, low power output, expensive materials, and complicated configuration. To address these issues, a granular activated carbon based single chamber microbial fuel cell (GACB-SCMFC) has been designed using GAC-biocathodes without using any expensive materials for the simultaneous decolorization of real dye wastewater and electricity generation. The GACB-SCMFC produced a power density of 8 W/m(3) which indicates the GAC-biocathode can be a good alternative to platinum and other chemical catalysts. The dye wastewater was primarily treated at the anode and further polishing steps were occurred at the aerobic cathode. Toxicity measurement shows that the effluent after GACB-SCMFC operation was much less toxic compared to the original dye wastewater. Additional advantage of the GACB-SCMFC is that pH was automatically adjusted from 12.2 to 8 during 48 h of hydraulic retention time (HRT).
School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongsangbukdo 712-749, Republic of Korea.
Shafeer
S
Kalathil
Jintae
J
Lee
Moo Hwan
MH
Cho
D001674:Bioelectric Energy Sources / Q000382:microbiology*; D019149:Bioreactors / Q000382:microbiology*; D003116:Color; D004396:Coloring Agents / Q000302:isolation & purification*; D004566:Electrodes; D004867:Equipment Design; D019544:Equipment Failure Analysis; D062065:Wastewater / Q000382:microbiology*; D018508:Water Purification / Q000295:instrumentation* / Q000379:methods*
D004396:Coloring Agents; D062065:Wastewater