A supported polymeric liquid membrane process for removal of carboxylic acids from a waste stream

摘要

The removal or elimination of organic residues from aqueous waste streams represents a major need in the chemical industry. We have developed a new class of membrane called "supported polymeric liquid membranes" that are capable of removing and concentrating low molecular weight organic compounds from dilute aqueous solutions, especially those that also contain high concentrations of inorganic salts. Attractive features of this membrane process include the Ability to recover the contaminants in concentrated form for Either recycle or more economical disposal, low pressure (ambient)operation, simple scale-up using commercial hollow fiber operation, and ease of in-situ regeneration of the polymeric liquid.