Profile: Zero Discharge Technologies, Inc specializes in pollution prevention technology for the metal finishing industry. We focus on the recovery and reuse of process chemicals. We develop systems to recover metal finishing chemicals economically. Our recovery systems are designed by line platers. We provide electrodialysis equipment, which is a electrically driven ion-exchange utilizing alternating sequences of cation membranes and anion membranes. Specific cations or anions can be targeted for removal and concentration by using perm-selective ion exchange membranes.