Abstract
Specific features of the electroflotation extraction of hydroxides of nonferrous metals (Cu2+, Ni2+, Zn2+, Cr3+, Fe3+) from a five-component system in the presence of sodium sulfate as supporting electrolyte were examined. The fundamental aspects of the extraction process upon introduction into the system of surfactants of varied nature and flocculants were determined. It was shown that addition of a nonionogenic flocculant N-300 makes it possible to raise the efficiency and stabilize the process of the electroflotation extraction of difficultly soluble metal hydroxides contained in multicomponent systems from wastewater formed in various galvanic shops, with the degrees of extraction possibly reaching a value of 97%.
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