XIAO Shu-hu, ZHANG Guo-fang, SONG Yong-hui, ZENG Ping, LI Hui. Treatment of berberine pharmaceutical wastewater containing copper by bipolar-electrochemical process[J]. Journal of Environmental Engineering Technology, 2011, 1(4): 295-299. DOI: 10.3969/j.issn.1674-991X.2011.04.049
Citation: XIAO Shu-hu, ZHANG Guo-fang, SONG Yong-hui, ZENG Ping, LI Hui. Treatment of berberine pharmaceutical wastewater containing copper by bipolar-electrochemical process[J]. Journal of Environmental Engineering Technology, 2011, 1(4): 295-299. DOI: 10.3969/j.issn.1674-991X.2011.04.049

Treatment of berberine pharmaceutical wastewater containing copper by bipolar-electrochemical process

  • The berberine pharmaceutical wastewater containing copper was treated by the bipolar-electrochemical process. The effects of electrode distance, current intensity and initial pH on the removal efficiencies of berberine and Cu2+ were studied in details. The optimal condition was determined as followed: the electrode distances of 2.0 cm, the current intensity of 4.0 A and initial pH of 0.4. Under the conditions, the concentrations of berberine and Cu2+ reduced from 1 700 and 22 000 mg/L to 120 and 55.0 mg/L within 300 min, and the removal efficiencies reached about 93.3% and 99.9%, respectively. According to the weight method, copper recovery rate was calculated as 97.1%. That is, about 21.35 kg of Cu could be recovered from per ton of such wastewater. Thus, it was proved that the bipolar-electrochemical process was an effective method for the treatment of berberine wastewater containing copper.
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