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OLS Field Name OLS Field Data
Main Title Separation of hazardous organics by low pressure membranes : treatment of soil-wash rinse-water leachates /
Author Bhattacharyya, D. ; Kothari, A.
Other Authors
Author Title of a Work
Kothari, A.
Lauch, Richard P.
CORP Author Kentucky Univ., Lexington. Dept. of Chemical Engineering.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher Risk Reduction Engineering Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1992
Report Number EPA/600/R-92/035; EPA-R-814491
Stock Number PB92-153436
Subjects Membrane separation. ; Water--Purification--Reverse osmosis process. ; Leachate.
Additional Subjects Water pollution abatement ; Waste water ; Land pollution control ; Membranes ; Soil treatment ; Performance evaluation ; Recycling ; Leaching ; Separation ; Hazardous materials ; Organic compounds ; Filtration ; Osmosis ; Experimental design ; Soil washing ; Low pressure membranes
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB92-153436 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 141 pages : illustrations ; 28 cm
Soil washing is a promising technology for treating contaminated soils. In the present work, low-pressure, thin-film composite membranes were evaluated to treat the soil-wash leachates so that the treated water could be recycled back to the soil washing step. Experiments were done with SARM (Synthetic Analytical Reference Matrix) soils. Membrane performance was evaluated with leachates obtained from different wash solutions. The effect of fine suspensions in the leachates was also studied. A solution-diffusion model was modified to include an adsorption resistance term in water flux, and this term was correlated with bulk concentration using the Freundlich isotherm. The correlation was then used to predict water flux drop at different bulk concentrations or to predict water flux at different recoveries. Thin-film composite membranes were found to effectively treat the leachate from rinse water used to wash contaminated soil. In addition, feed preozonation significantly improved water flux.
Includes bibliographical references (pages 120-125). "Richard P. Lauch, project officer." Microfiche.