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ChroRePro: Chromium Recovery Process

Separation and recovery of chromium from plating industry wastewaters

February 2021
Gallery ChroRePro: Chromium Recovery Process 1
Gallery ChroRePro: Chromium Recovery Process 1


Circular Materials was funded in April 2019 to solve the challenges related to the removal and recovery of heavy metals from industrial wastewaters. Currently, only 5% of the heavy metals from spent baths in the galvanic and plating industry are recycled: the rest is converted to toxic sludges and sent to landfill as special waste, steeply increasing the treatment cost. They have patented a technology where we recover in the form of powders the 99% of heavy metals present in industrial wastewaters, by means of a sustainable and environmentally friendly precipitation process in supercritical water. The process does not produce any toxic sludge, it recovers valuable metals to be reintroduced in the industrial process or sold as secondary raw materials.

Label Date February 24, 2021
From Italy
Maturity stage Prototype testing in the real world
Looking For Network, New clients, Visibility, Funding, Partners

The environmental benefits

  • Supercritical water process at T > 374 °C and P > 221 bar
  • 1 R&D Plant @20L/h, 1 prototype at 100L/h, 1 plant being designed at 300L/h
  • 60% of primary energy reduction
  • 99% of heavy metals recovered as compared to 5% recovery rate for chemical precipitation
  • No production of toxic sludges

The Financial benefits

  • 50% reduction in treatment costs
  • Rental fees as compared to heavy CAPEX investments
  • Direct raw material recovery in the production process

Activity Region

  • /


Italy, Germany,

  • Headquarters
  • Activity

Company Profile

Circular Materials

Clean Water. Pure Metals.

View company profile Solution website
Headquarters 20040 Cambiago, Metropolitan City of Milan, Italy
Contact the Solution Provider Add to Favorites

The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator Circular Materials has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.