کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
35749 | 45105 | 2008 | 7 صفحه PDF | دانلود رایگان |
Microbial fuel cell (MFC) was employed to dispose Cr6+ in real electroplating wastewater and generate electricity simultaneously. The experiments were carried out in a dual-chamber MFC. Under the condition of pH 2 and using graphite paper as the cathode electrode chromium removal and power density were highest. Moreover, increasing initial concentration of Cr6+ could enhance the power density. The results indicated that when treating a real electroplating wastewater containing Cr6+ with the initial concentration of 204 ppm in the MFC, the maximum power density of 1600 mW/m2 was generated at a columbic efficiency of 12%. In addition, 99.5% Cr6+ and 66.2% total Cr were removed through reduction of Cr2O72− to Cr2O3 precipitating on the surface of cathode electrode. MFC was proved to be a promising technology for removing Cr6+ from electroplating wastewater.
Journal: Process Biochemistry - Volume 43, Issue 12, December 2008, Pages 1352–1358