Research of the Purification Methods of Chrome-Containing Manufacturing Water

Abstract

The article describes the most common current methods for treating industrial wastewater containing chromium compounds. Possible methods of recycling chromium-containing waste and difficulties associated with this process are identified, as well as increasing factors are noted. Concepts of electrocoagulation and reagent methods are presented, their advantages and disadvantages are noted. A process scheme for treatment of contaminated effluents of industrial enterprises is proposed, which provides for their release into the city drainage network. An example of a successful existing technology for recycling chromium-containing waste water is given. The most effective integrated method of treating industrial effluents is justified for industrial enterprises that have chromium-containing wastewater. It provides for the combination of the electrocoagulation method with the post-treatment of wastewater by the reagent method. As reagents, it was proposed to use barium chloride 2-aqueous and iron sulphate (II) 7-aqueous (iron sulfate). Comparative calculation of the required amount of reagents and its cost was made.