Diffusion Dialysis

Ph: (508)-528-5990

Fax: (508)-528-8972


This technology efficiently recovers nitric acid (HNO3). hydrochloric acid (HCl), hydrofluoric acid (HF), fluoboric acid (HBF4), methanesulfonic acid (MSA), sulfuric acid (H2SO4) and mixtures of these acids, from concentrated anodizing, pickling, and plating baths which are usually discarded. The acid is returned to the process for continued use while only a dilute stream containing the metal contaminants and a small amount of acid requires any further attention.

Diffusion Dialysis is a membrane separation process which has been successfully used for many years for the separation and recovery of acids from dissolved metal bearing solutions. Mech-Chem's diffusion dialysis systems are fully automated making them simple and economical to operate.

Our clients who are currently using Diffusion Dialysis for recovery of the waste acid mixtures from their anodizing, pickling and plating baths are experiencing good Return On Investment (ROI) with a payback of between six months and two years.

More information on diffusion dialysis can be found here.

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