FIELD: waste water treatment. SUBSTANCE: collected acidic drainage water from under mineral refuses, separately or combined with mine water is neutralized to pH 8.0-9.2 by mixing it sludge resulting from washing of ores to remove components of concrete-stowage mix. The thus obtained suspension is settled with height of water layer in accumulation pool about 2 m and sludge is stored in sludge accumulator. Cleaned and clarified water is withdrawn from the surface of sludge accumulator pool. Lime is added to ore washing sludge. EFFECT: simplified process and diminished formation of drainage water and consumption of neutralizers. 1 tbl, 4 ex
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机译:领域:废水处理。物质:从矿物垃圾中收集的酸性排水水,单独或与矿井水混合,通过将其洗矿产生的污泥进行混合,将其中和至pH 8.0-9.2,以去除混凝土混合料的成分。将由此获得的悬浮液以水层高度沉淀在蓄水池中约2 m,并将污泥存储在污泥蓄积器中。从污泥收集池的表面抽出清洁和澄清的水。石灰被添加到矿石污泥中。效果:简化了工艺,减少了排水的形成和中和剂的消耗。 1汤匙,4 ex
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