Purifying contaminated water

Patent · Sat Jan 01 00:00:00 EST 1983

OSTI ID:864571

Daughton, Christian G ^[1]

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1. San Pablo, CA

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.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4387025
• OSTI ID: 864571
• Country of Publication: United States
• Language: English

Related Subjects

purifying
contaminated
water
process
removing
biorefractory
compounds
oil
shale
retort
waste-water
contacting
fragmented
raw
removal
enhanced
preactivating
carboxylic
acids
alcohols
aldehydes
ketones
ethers
amines
amides
sulfoxides
mixed
ether-esters
nitriles
purification
obtained
stripping
followed
biodegradation
cells
contaminated water
shale retort
oil shale
raw oil
purifying contaminated
refractory compound
refractory compounds
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