Method of removing and detoxifying a phosphorus-based substance
A method of removing organic phosphorus-based poisonous substances from water contaminated therewith and of subsequently destroying the toxicity of the substances is disclosed. Initially, a water-immiscible organic is immobilized on a supported liquid membrane. Thereafter, the contaminated water is contacted with one side of the supported liquid membrane to selectively dissolve the phosphorus-based substance in the organic extractant. At the same time, the other side of the supported liquid membrane is contacted with a hydroxy-affording strong base to react the phosphorus-based substance dissolved by the organic extractant with a hydroxy ion. This forms a non-toxic reaction product in the base. The organic extractant can be a water-insoluble trialkyl amine, such as trilauryl amine. The phosphorus-based substance can be phosphoryl or a thiophosphoryl.
- Assignee:
- Dept. of Energy, Washington, DC
- Patent Number(s):
- US 4851124
- Application Number:
- PPN: US 6736576A
- OSTI ID:
- 5191576
- Resource Relation:
- Patent File Date: 21 May 1985
- Country of Publication:
- United States
- Language:
- English
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Method of removing and detoxifying a phosphorus-based substance
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Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ORGANIC WASTES
WASTE PROCESSING
PHOSPHORUS
REMOVAL
WATER POLLUTION
REMEDIAL ACTION
AMINES
CHEMICAL REACTIONS
MEMBRANES
SEPARATION PROCESSES
SOLVENT EXTRACTION
TECHNOLOGY ASSESSMENT
TOXICITY
WASTE WATER
WATER TREATMENT
ELEMENTS
EXTRACTION
HYDROGEN COMPOUNDS
LIQUID WASTES
MANAGEMENT
NONMETALS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION
PROCESSING
WASTE MANAGEMENT
WASTES
WATER
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)
560300 - Chemicals Metabolism & Toxicology
320305 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management
400201 - Chemical & Physicochemical Properties