Experimental study on the treatment of electroplating wastewater containing copper and nickel by coagulant-microfiltration method
Online published: 2010-10-01
For the increasingly elevated electroplating wastewater discharge standard in Tai Lake area, coagulantmicrofiltration membrane filtration combined process has been used for removing copper and nickel from electroplating wastewater. From the angle of engineering application,the influential factors of FeSO4 coagulant -microfiltration membrane combined process are studied and discussed,and the most optimum running parameters are confirmed,and its practicability is investigated. The concentration of Cu2+ in electroplating wastewater sample is 57.6 mg/L,and that of Ni2+is 42.0 mg/L. The concentration of copper and nickel in outflow are changed to 0.15 mg/L and 0.87 mg/L respectively,after treated by FeSO4 coagulant and PVDF microfiltration membrane. They are both lower than the first class of Wastewater Comprehensive Discharge Standard,and the process has relatively strong economic applicability.
Key words: coagulant; microfiltration; electroplating wastewater
Zhang Zhijun, Zhang Chunyu, Yang Lifang, Qin Jing . Experimental study on the treatment of electroplating wastewater containing copper and nickel by coagulant-microfiltration method[J]. Industrial Water Treatment, 2010 , 30(5) : 64 -66 . DOI: 10.11894/1005-829x.2010.30.(05).64
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