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Chemistry for Sustainable Development

2012 year, number 3

Purifying Man-Caused Wastewaters and Technological Solutions from Heavy Metal Ions and Arsenic

A. I. MASLIY1, A. G. BELOBABA1, G. R. BOCHKAREV2, G. I. PUSHKAREVA2 and K. A. KOVALENKO2
1 Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Ul. Kutateladze 18, Novosibirsk 630128 (Russia)
E-mail: masliy@solid.nsc.ru
2 Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Ul. Kutateladze 18, Novosibirsk 630128 (Russia)
E-mail: masliy@solid.nsc.ru
Keywords: man-caused wastewater, heavy metals, arsenic, electrolysis, flow-through porous cathodes
Pages: 309–314

Abstract

A process of purifying complex multicomponent technological solutions with the use of a combined sorption-and-electrochemical method was studied. By the example of processing the technological solutions from the Belovo Zinc Plant and from the sulphuric acid workshop of the Ural Mining and Processing Company, a potentiality of combined using the adsorption and electrochemical stages for efficient extracting of HMI and arsenic up to attaining required MPC standards for discharging the solutions into a sewage system was demonstrated. This allows reducing to a significant extent the hazard inherent in the wastewaters and technological solutions, improving the environmental situation around the enterprises and reducing the metal loss.