Waste water treatment

Details Waste water treatment Waste water treatment

1984-11-19

1987-06-30

Cintins, Ivars

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210667, 210669, 210677, 210694, C02F 900

Patent

active

046769080

ABSTRACT:
Waste water streams from the steam-extraction of heavy oils are treated to remove organic contaminants, suspended solids and mineral contaminants, so as to produce a purified water stream of a quality suitable for reuse in steam production. Suspended solids are removed by coagulation, flocculation and flotation, organic contaminants are removed by activated carbon adsorption, and mineral contaminants are removed by electrodialysis or reverse osmosis and ion-exchange. Thermal economy also is effected by passing the purified water stream in heat exchange relation with the waste water stream after suspended solids removal.

REFERENCES:
patent: 3870033 (1975-03-01), Faylor et al.
patent: 4395337 (1983-07-01), Ciepiela
patent: 4482459 (1984-11-01), Shiver

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