Waste treatment process for removal of contaminants from aqueous, mixed-waste solutions using sequential chemical treatment and crossflow microfiltration, followed by dewatering
It is an object of the claimed invention to combine chemical treatment with microfiltration process to treat groundwater, leachate from contaminated soil washing, surface and run-off waters contaminated with toxic metals, radionuclides and trace amounts of organics from variety of sources. The process can also be used to treat effluents from industrial processes such as discharges associated with smelting, mining and refining operations. Influent contaminants amenable to treatment are from a few mg/L to hundreds of mg/L. By selecting appropriate precipitation, ion exchange and adsorption agents and conditions, efficiencies greater than 99.9 percent can be achieved for removal of contaminants. The filtered water for discharge can be targeted with either an order of magnitude greater or lower than contaminant levels for drinking water.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- Assignee:
- Dept. of Energy
- Patent Number(s):
- PATENTS-US-A7935328
- Application Number:
- ON: DE94016106; PAN: 7-935,328
- OSTI ID:
- 10171131
- Resource Relation:
- Other Information: PBD: 1992
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
WATER POLLUTION CONTROL
INVENTIONS
LIQUID WASTES
RADIOACTIVE WASTE PROCESSING
LEAD
REMOVAL
CADMIUM
URANIUM
CESIUM 137
STRONTIUM 85
STRONTIUM 90
ORGANIC MATTER
BENZENE
IRON
CALCIUM
CONTAMINATION
PRECIPITATION
ADSORPTION
ION EXCHANGE
BENCH-SCALE EXPERIMENTS
FILTRATION
EVAPORATION
WATER REMOVAL
052001
320305
WASTE PROCESSING
INDUSTRIAL WASTE MANAGEMENT