Process for treatment of water containing volatile and toxic com

Details Process for treatment of water containing volatile and toxic com Process for treatment of water containing volatile and toxic com

1988-07-29

1989-08-15

Wyse, Tom

Liquid purification or separation

Processes

Treatment by living organism

210607, 210618, 210624, 210625, 210631, 210673, 210761, 210908, 55 76, 203 10, C02F 308

Patent

active

048571989

ABSTRACT:
Water contaminated with at least one volatile compound is treated by air stripping the volatile compound into the gas phase, then removing the volatile compound from the gas phase by contacting it with an aqueous mixture of biological solids and powdered adsorbent. The partially-purified water is further treated by a biophysical aerobic process which in turn produces the aqueous mixture of biological solids and powdered adsorbent used to remove the volatile compound from the gas phase. The aqueous mixture of biological solids and powdered adsorbent containing the volatile compound is thickened and the solids slurry treated by regeneration, preferrably wet air oxidation, to destroy the biological solids and volatile compound as well as regenerate the powdered adsorbent. The regenrated adsorbent may be returned to the biophysical aerobic treatment process.

REFERENCES:
patent: 3803029 (1974-04-01), Blecharczyk
patent: 3828525 (1974-08-01), Copa et al.
patent: 3904518 (1975-09-01), Hutton et al.
patent: 3977966 (1976-08-01), Pradt et al.
patent: 4005011 (1977-01-01), Sweeny
patent: 4069148 (1978-01-01), Hutton et al.
patent: 4080287 (1978-03-01), Conway et al.
patent: 4623464 (1986-11-01), Ying et al.
patent: 4626354 (1986-12-01), Hoffman et al.
patent: 4749492 (1988-06-01), Berrigon, Jr. et al.
Weber, et al.,; "Toxic Substance Removal in Activated Sludge and PAC Treatment Systems"; EPA/600/S2-68/045, Jun. 1986.

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