Alkaline Cleaner Recovery

Alkaline cleaning is performed on metal parts at different times during the manufacturing process to remove oils, coolants and other metalworking fluids prior to electroplating. Various processes can be used to remove oils and recover the alkaline cleaning chemistry.

The Silverback® system from Siemens Water Technologies can be used to recycle alkaline cleaner. It uses microfiltration technology. The oils are removed from the alkaline cleaner by using a 0.2 micron ceramic membrane filter. This is a cross-flow application where the oil is rejected by the membrane and the cleaner is allowed to pass through the membrane and back to the cleaner bath. The Silverback® unit recovers 1.0 gpm of alkaline cleaner.

The Silverback® system provides an environmental benefit by extending the bath life of the alkaline cleaner, thereby reducing the amount of liquid and solid wastes produced by the cleaning operation without removing the cleaning constituents of the bath.

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Contact Us

For more information about alkaline cleaner recovery, please contact the Information Desk, Monday through Friday, 8 a.m to 5 p.m, Eastern Standard Time: 1.866.926.8420 or 1.724.772.1402 or information.water@siemens.com.

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Alkaline Cleaner Recovery Case Study

Silverback® Reclaims Spent Alkaline Cleaner at Gates Rubber

The United States Environmental Protection Agency (EPA) has created the Environmental Technology Verification Program (ETV) to facilitate the deployment of innovative and improved environmental technologies through performance verification and dissemination of information. The ETV program has evaluated the performance of microfiltration technology for the recycling of alkaline cleaners.

An ETV program was conducted on a Silverback® unit at Gates Rubber. Gates Rubber, in Versailles, Missouri, uses alkaline cleaning solutions at different times during manufacturing to remove oils, coolants and other metalworking fluids prior to electroplating. The verification test evaluated the ability of the Silverback® unit to remove oils and recover the alkaline cleaning chemistry.

Read Full Case Study

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Featured Product

Silverback® Aqueous Cleaner Recycle System

Alkaline Cleaner Recovery Case Studies

Silverback® Reclaims Spent Alkaline Cleaner at Gates Rubber

Product Documentation

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