Water Reclamation by Combined Electrodialysis/Ultrafiltration

摘要

The study demonstrates that the combined use of electrodialysis (ED) and ultrafiltration (UF) in the same module represents a functional process for treating secondary effluents from conventional waste treatment processes. In this process, UF membranes afford separation and concentration of colloidal suspensions of bacteria and organics from the water and salts present in the solution. It would be more economical to employ UF and ED as separate processes to accomplish the tertiary treatment of a secondary effluent. A method for evaluating the overall performance of UF membranes is described.