CHROME COATING TREATMENT

Chrome plating is used on nickel plating for decorative purposes for a bright and non-darkening appearance, or on surfaces that should be hard, and to obtain a hard and porous structure on surfaces that are exposed to excessive wear. Chromium +3 valent form is used. Although it is not preferred as much as before in terms of human and environmental health, Chromium +6 form is also used.

Chromium plating wastewater causes heavy metal pollution, it is essential to be treated before being released into the environment. The carcinogenic effects of the chromium +6 (hexavalent) form are known to everyone.

Chemical treatment is one of the most economical and efficient options for the treatment of chrome plating wastewater. Ion exchange, membranes are also applicable methods. Chromium +6 valence ions resulting from chromium plating must be reduced to form Chromium +3 before being included in the treatment.