Process for treatment of water containing volatile and toxic compounds
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United States of America Patent
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-
Aug 15, 1989
Grant Date -
N/A
app pub date -
Jul 29, 1988
filing date -
Jul 29, 1988
priority date (Note) -
Expired
status (Latency Note)
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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.
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