FIELD: sewage treatment. SUBSTANCE: invention relates to methods of galvanic flows treatment at heavy metals processing. Method involves preliminary sewage treatment by reagent precipitation and sorption on aluminosilicate at pH = 8-11, desalting in apparatus of reverse osmos (3-5 steps of concentrating) at pH = 5.5-6.5, concentrate treatment on aluminosilicate at pH = 8-9 followed by evaporation up to dry residue and repeated use of treated water. Aluminosilicate sorbent and reverse-osmotic diaphragms were regenerated periodically. EFFECT: enhanced effectiveness of process. 2 cl, 1 tbl, 1 dwg
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Authors
Dates
1997-07-27—Published
1995-10-05—Filed