Application of Membrane Separation Method to Concentrate Products on the Process Producing Environmentally Adaptable Deicer by means of Wet Oxidation of Organic Wastes

Abstract

The research is proceeding on the process development to manufacture calcium acetate which is an environmentally adaptable deicer by means of wet oxidation of organic wastes. In the current research, separation and concentration of calcium acetate in an aqueous solution obtained by the process were investigated, using reverse osmosis membrane and ion-permeable membrane independently and in combination. Calcium acetate was highly concentrated with each methods. Moreover, separation of acetic acid and formic acid, which was a product produced by a wet oxidation reaction of organic matter as well as acetic acid, was possible by performing multi-stage separation and concentration using a reverse osmosis membrane.