Treatment of concentrated industrial wastewaters originating from oil shale and the like by electolysis polyurethane foam interaction

Patent · Tue May 29 00:00:00 EDT 1990

OSTI ID:6671780

Tiernan, J E

This patent describes highly concentrated and toxic petroleum-based and synthetic fuels wastewaters such as oil shale retort water which are treated in a unit treatment process by electrolysis in a reactor containing oleophilic, ionized, open-celled polyurethane foams and subjected to mixing and laminar flow conditions at an average detention time of six hours. Both the polyurethane foams and the foam regenerate solution are re-used. The treatment is a cost-effective process for waste-waters which are not treatable, or are not cost-effectively treatable, by conventional process series.

• Assignee: Dept. of Energy, Washington, DC (USA)
• Patent Number(s): US 4929359; A
• Application Number: PPN: US 7-148721A
• OSTI ID: 6671780
• Resource Relation: Patent File Date: 26 Jan 1988
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
OIL SHALE PROCESSING PLANTS
EMISSION
WASTE WATER
ELECTROLYSIS
CHEMICAL REACTORS
WASTE PROCESSING
WATER TREATMENT
HYDROGEN COMPOUNDS
INDUSTRIAL PLANTS
LIQUID WASTES
LYSIS
MANAGEMENT
OXYGEN COMPOUNDS
PROCESSING
WASTE MANAGEMENT
WASTES
WATER
040900* - Oil Shales & Tar Sands- Waste management