FIELD: sewage treatment. SUBSTANCE: sewage were treated in the field of galvanic pair iron: coke in the presence of lignin at the weight ratio of components 4: (0.93-1.0):(0.20-0.25), correspondingly, following by treatment with milk of lime up to pH 7.0-7.5. EFFECT: improved method of sewage treatment. 4 tbl
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Authors
Dates
1995-03-27—Published
1991-05-22—Filed