WASTE WATER TREATMENT METHOD Russian patent published in 2001 - IPC

Abstract RU 2174961 C2

FIELD: waste water treatment. SUBSTANCE: method involves coagulation, flotation, and sorption. Flotation is performed in activated aqueous air dispersion, to which sorbent, in particular fired vermiculite is added. When waste water is treated to remove petroleum derivatives, weight ratio of vermiculite to the latter ranges between 1:1 and 1:15. Before firing, size of vermiculite should be at least 0.5 mm. Method allows creation of module installations and purification of water to oil levels below 0.05 mg/l. Method can be, in particular, applied at mining plants, in chemical industry, etc. EFFECT: enhanced oil removal efficiency. 3 cl, 1 tbl, 4 ex

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RU 2 174 961 C2

Authors

Gershenkop A.Sh.

Skorokhodov V.F.

Levitin S.M.

Dates

2001-10-20—Published

1999-10-29—Filed