Method for removing and decomposing hydrocarbon compounds from water contaminated therewith
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United States of America Patent
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Apr 24, 1990
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app pub date -
Feb 6, 1989
filing date -
Feb 6, 1989
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Abstract
A method and apparatus for the removal and safe disposal of trace quantities of toxic or carcinogenic hydrocarbon compounds from waste water. As a result of this process, such hydrocarbon compounds are converted to less noxious, readily disposable compounds. The waste water is first admixed with rehydratable alumina to equilibrium, whereby hydrocarbon pollutant compounds are absorbed onto the surface of the rehydratable alumina. The compounds are then removed from the waste water by filtration, and the remaining water is safely drained off. The remaining rehydratable alumina containing the toxic compounds is then reactivated by heating for reuse in subsequent processing. Non-reusable alumina is digested in sulfuric acid to decompose any remaining toxic hydrocarbon comppounds to less noxious compounds and to convert the alumina to water-soluble and conveniently disposable aluminum sulfate. Concentrated hydrocarbon waste compounds may be converted to disposable wastes by mixing with alumina and digesting in a similar manner.
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