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Abstract <p>A treatment unit for desalinating water by reverse osmosis was developed to remove cyanides, thiocyanates, total hardness, and traces of nonoxidized metals from wastewater. A test stand was constructed, and the influence of various oxidants on the oxidation of metals and ions was examined. It was found that ozone oxidizes all components 10–15% more efficiently than sodium hypochlorite. Iron sulfate shows slightly better oxidation performance than polyaluminum chloride, but the required dosage of iron sulfate is 50–100 mg/L, while that of polyaluminum chloride is only 5–7 mg/L. Various filter media were studied, and the operational parameters of the reverse osmosis unit were determined. Aluminosilicate media AS/MS exhibited the best sorption properties.</p>

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Development of a Wastewater Treatment Technology for Tailings Storage Facilities of Mineral Processing Plants

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • T. V. Kovrigina,
  • K. Kh. Khakimbolatova,
  • T. K. Chalov,
  • B. E. Begenova

摘要

Abstract

A treatment unit for desalinating water by reverse osmosis was developed to remove cyanides, thiocyanates, total hardness, and traces of nonoxidized metals from wastewater. A test stand was constructed, and the influence of various oxidants on the oxidation of metals and ions was examined. It was found that ozone oxidizes all components 10–15% more efficiently than sodium hypochlorite. Iron sulfate shows slightly better oxidation performance than polyaluminum chloride, but the required dosage of iron sulfate is 50–100 mg/L, while that of polyaluminum chloride is only 5–7 mg/L. Various filter media were studied, and the operational parameters of the reverse osmosis unit were determined. Aluminosilicate media AS/MS exhibited the best sorption properties.