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U.S. Department of Energy
Office of Scientific and Technical Information

Purifying contaminated water

Patent ·
OSTI ID:5840944

Process for removing biorefractory compounds from contaminated water (E.G., oil shale retort waste-water) by contacting same with fragmented raw oil shale. Biorefractory removal is enhanced by preactivating the oil shale with at least one member of the group of carboxylic, acids, alcohols, aldehydes, ketones, ethers, amines, amides, sulfoxides, mixed ether-esters and nitriles. Further purification is obtained by stripping, followed by biodegradation and removal of the cells.

Assignee:
Dept. of Energy
Patent Number(s):
US 4387025
OSTI ID:
5840944
Country of Publication:
United States
Language:
English