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Latest Inventions  Prospecting, production activity and waste handling of minerals Petroleum-gas machinery WASTE WATER TREATMENT METHOD
WASTE WATER
TREATMENT METHOD
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
Gershenkop A.Sh.,
Skorokhodov V.F., Levitin S.M.
Patent number: 2174961
Publishing date: December 18, 2001
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