DEWATERING OF HAZARDOUS WASTES USING REVERSIBLE GEL ABSORPTION.

W. J. Maier, E. L. Cussler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have studied the technical feasibility of using gels to concentrate aqueous waste streams. Potential applications focus on extracting pure water from wastewaters that contain low concentrations of hazardous solutes in order to reduce volumes and concentrate the hazardous material. It has been demonstrated that water sensitive cross-linked gels absorb water while excluding macromolecules that are larger than the gel pore size. A cyclic process of swelling, acidification to release water, and gel reuse has been demonstrated. The process is similar to solvent extraction with the added feature that it separates by molecular size.

Original languageEnglish (US)
Title of host publicationUnited States Environmental Protection Agency, Office of Research and Development, (Report) EPA
PublisherEPA
Pages395-403
Number of pages9
StatePublished - Dec 1 1985

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