Patent classifications
C
CHEMISTRY; METALLURGY
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C02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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C02F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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2101/00
Nature of the contaminant
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C02F2101/32
Hydrocarbons, e.g. oil
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C02F2101/327
Polyaromatic Hydrocarbons [PAH's]
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