Purifying contaminated water

Patent · Fri Dec 31 23:00:00 EST 1982

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
• 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

/210/
acids
alcohols
aldehydes
amides
amines
biodegradation
biorefractory
carboxylic
cells
compounds
contacting
contaminated
contaminated water
enhanced
ether-esters
ethers
followed
fragmented
ketones
mixed
nitriles
obtained
oil
oil shale
preactivating
process
purification
purifying
purifying contaminated
raw
raw oil
refractory compound
refractory compounds
removal
removing
retort
shale
shale retort
stripping
sulfoxides
waste-water
water