**Description:** Metal finishers face a steady drain of value into their rinse tanks. Nickel, copper, zinc, and chromium leave the bath on every rack, and the acids that carry them end up as effluent to be neutralised. Electrodialysis offers a route to reclaim that material instead of paying to dispose of it. Laxminarayan Technologies manufactures ED and Bipolar Electrodialysis (E... https://www.electrodialysis.in/application-recovery-of-electroplating-solutions/