FIELD: waste water treatment. SUBSTANCE: waste water is passed through bed composed of burnt minerals with particle size 0.12 to 0.5 mm at filtration rate 1.30 cm/s. Waste water is further purified being passed through cotton-containing bed at filtration rate 1.50 cm/s. Waste water is maintained in contact with sorbents until amount of oil in water responds to relationship: moil/msorbent = 5 for burnt minerals and 24 for cotton-containing sorbent. EFFECT: increased degree of purification and reduced expenses. 2 cl, 9 tbl, 2 ex
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