Copper-containing wastewater treatment and copper recovery by using a continuous flow microbial fuel cell

4th International Conference on Water Resource and Environment

地球科学;生态环境科学

Liu, W.P.^1 ; Zhao, M.Z.^2 ; Yin, X.F.^3

School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou

213001, China^1

Shiliang School of Law, Changzhou University, Changzhou

213164, China^2

School of Environment and Civil Engineering, Jiangnan University, Wuxi

214122, China^3

关键词: Activated sludge;    Anaerobic bacterium;    Chemical energy;    Continuous flows;    Copper recovery;    Maximum current density;    Microbial metabolism;    Organic wastewater;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/191/1/012074/pdf
DOI  :  10.1088/1755-1315/191/1/012074

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

A microbial fuel cell is a device of directly converting chemical energy into electricity with the microbial metabolism. Graphite rods were used as electrodes, organic wastewater was used as substrate, anaerobic activated sludge was used as anaerobic bacteria and copper-containing wastewater was used as catholyte. A continuous flow dual chamber microbial fuel cell was constructed. The feasibility of electricity producing via degradation of wastewater by anaerobic bacteria in anode chamber and copper recovery from copper-containing wastewater were studied. The results showed that a continuous flow microbial fuel cell could produce electricity and could be used to treat copper-containing wastewater, the maximum current density was 4.4 mA m-2, the removal rate of Cu2+ was 99%, and the sediment on the cathode was a mixture of Cu and Cu2O.