Mendeleev University of Chemical Technology, Moscow, Russia

А. Yu. Kurbatov, Associate Professor of the Department of Industrial Ecology, Candidate of Technical Sciences, e-mail: kurbatov.a.i@muctr.ru
I. V. Zheltoukhova, Student of the Department of Industrial Ecology, e-mail: ira.zheltoukhova@yandex.ru
P. S. Astakhov, Postgraduate Student of the Department of Industrial Ecology, e-mail: astakhov.p.s@muctr.ru

The effectiveness of the hydrodynamic treatment method for flotation to extract insoluble compounds containing copper ions from wastewater has been investigated. The problem of wastewater contamination with copper compounds requires the development of effective treatment methods. Flotation with hydrodynamic treatment technology, based on the principle of separating gas bubbles from a liquid medium, is already used in many industries and is a promising method for removing heavy metals. Purification by producing cavitation bubbles for flotation of the wastewater of an operating electroplating plant has been studied in a laboratory unit. The influence of various factors on the degree of purification after hydrodynamic treatment is also considered. Experimental data demonstrate a high degree of extraction of insoluble copper compounds, reaching 95–99% under optimal process conditions. The advantages of hydrodynamic treatment are relatively fast purification, low reagent costs, and the ability to treat large volumes of wastewater. The research results presented in the article confirm the prospects of using this method for the treatment of copper-containing wastewater and can be used to modernize existing treatment technologies.

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