Solvent addition to deep bed filter
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United States of America Patent
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Apr 23, 1985
Grant Date -
N/A
app pub date -
Aug 11, 1980
filing date -
Aug 11, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Oil-water mixtures are by-products of a number of known commercial activities such as crude oil production and power plant operation. Disposition of such mixtures in most all cases is prohibited by environmental regulation. Disposition may be effected, however, after separation of the oil from the water. This separation may be accomplished in a deepbed type filter. Where the oil in the water is unusually viscous or has a waxy, tar-like, or sticky consistency, for example, rejuvenation of the filter bed is enhanced by the addition of a small amount of a solvating liquid to the oil-water mixture before filtering.
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