Industrial Water Reuse with Coupled-Transport Membranes

摘要

The program objective was to demonstrate the feasibility of using coupled-transport membranes to treat chrome-plating rinse waters. This year's efforts were directed toward field tests of small hollow-fiber-membrane units at a decorative-chrome plating shop and at a hard-chrome plating shop. Based on the field-test results, an economic analysis was performed. The results show that coupled-transport treatment of decorative-chrome rinse water is economically attractive compared with distillation, which is currently used to a limited extent in the plating industry to recover chromium from rinse waters and to produce reusable rinse water.