Acid bath recycling

Acid regeneration station for the anodizing process. The ACIDPURE™ controls the balance and aluminum concentration of the anodizing baths completely autonomously to ensure consistent treatment quality.

Up to 94% of the sulfuric acid is recovered!


Traditionally, control of the aluminum concentration of an anodizing bath is done in a rough manner by removing a portion of the bath and replacing it with an equivalent volume of demineralized water and sulfuric acid to keep a constant concentration (180 to 240 g/l).
This results in significant costs associated with the loss of sulfuric acid and the treatment of effluent with high acid concentrations.
The ACIDPURE™ allows the aluminum concentration of the bath to be controlled and adjusted completely independently. The use of the ACIDPURE™ reduces not only the amount of sulfuric acid discharged but also the acid concentration of the effluent by 70%, making it less expensive to treat. The combination of the two results in a significant financial gain.

How does the ACIDPURE™ work?

The ACIDPURE™ uses an ion exchange resin to separate dissolved aluminum from sulfuric acid. The aluminum is then removed to a treatment plant while the sulfuric acid is returned to the anodizing bath.

A sustainable and profitable investment

  • Sulfuric acid consumption reduced by more than half
  • Elimination of a significant portion of maintenance costs
  • Reduced environmental impact by recycling the acid

The assurance of quality parts

  • Optimal aluminum concentration
  • Get consistent quality

Increased productivity

  • No interruption of the production line
  • Autonomous machine
  • Reduced maintenance frequency


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Acid recycling


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