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DIALYSIS FOR CONCENTRATION AND REMOVAL OF INDUSTRIAL WASTES
Citation:
Smith, J., S. Desai, R. Weaver, AND E. Klein. DIALYSIS FOR CONCENTRATION AND REMOVAL OF INDUSTRIAL WASTES. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-76/223.
Description:
This project evaluates dialysis for its potential for treatment/recovery of a number of organics and inorganics found in industrial wastes along the Lower Mississippi River. The feasibility of three membrane techniques was developed. (1) The use of acid and base conjugation on the downstream side of membranes perm-selective to aniline and phenol. (2) The use of a chelating complex for Al, Cu, and Pb ions. (3) The use of a pervaporation scheme in which a hydrophobic membrane passed volatile contaminants such as nitrobenzene and ethylene dichloride to a downstream vapor purge. Rotating batch and mimi-plant plate dialyzers were used. A design projection of full-scale operation was made for pervaporation of ethylene dichloride. Theoretical and practical aspects of the diffusion phenomena were discussed.