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A membrane-free baffled microbial fuel cell for cathodic reduction of Cu(II) with electricity generation
- Source :
-
Bioresource Technology . Apr2011, Vol. 102 Issue 7, p4774-4778. 5p. - Publication Year :
- 2011
-
Abstract
- 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 314mW/m3 with columbic efficiency of 5.3% was obtained using initial Cu2+ concentration of 6400mg/L. Higher current density favored the cathodic reduction of Cu2+, and removal of Cu2+ by 70% was observed within 144h using initial concentration of 500mg/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 (500–6400mg/L). This study suggested a novel low-cost approach to remove and recover Cu(II) from Cu2+-containing wastewater using MFC-type reactor. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09608524
- Volume :
- 102
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Bioresource Technology
- Publication Type :
- Academic Journal
- Accession number :
- 58746225
- Full Text :
- https://doi.org/10.1016/j.biortech.2011.01.057