FIELD: waste water treatment. SUBSTANCE: invention relates to treating waste waters from enterprises of petroleum processing, machine-making, meat, and milk industries, from galvanic coatings' production, for treating chromium-containing waste waters when creating recycling water supply. System of invention contains computer means determining, following elaborated algorithm and depending on number of drains and impurity content, treatment process flowsheet that may include any combination of following assemblies: galvanic coagulator, electrocoagulator, and pneumatic separator. EFFECT: optimized waste water treatment process flowsheet. 2 dwg
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