Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10395192 | Bioresource Technology | 2011 | 5 Pages |
Abstract
A membrane-free baffled microbial fuel cell (MFC) was developed to treat synthetic Cu(II) sulfate containing wastewater in cathode chamber and synthetic glucose-containing wastewater fed to anode chamber. Maximum power density of 314Â mW/m3 with columbic efficiency of 5.3% was obtained using initial Cu2+ concentration of 6400Â mg/L. Higher current density favored the cathodic reduction of Cu2+, and removal of Cu2+ by 70% was observed within 144Â h using initial concentration of 500Â mg/L. Powder X-ray diffraction (XRD) analysis indicated that the Cu2+ was reduced to Cu2O or Cu2O plus Cu which deposited on the cathode, and the deficient cathodic reducibility resulted in the formation of Cu4(OH)6SO4 at high initial Cu2+ concentration (500-6400Â mg/L). This study suggested a novel low-cost approach to remove and recover Cu(II) from Cu2+-containing wastewater using MFC-type reactor.
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Physical Sciences and Engineering
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Authors
Hu-Chun Tao, Wei Li, Min Liang, Nan Xu, Jin-Ren Ni, Wei-Min Wu,