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Preventing Pollution at Your Auto Repair Facilities - Part 01, Aqueous Parts Cleaners: Chapter 02: Microbial Sink-Top Units

Chapter Abstract: Part 1 of 6 for this series, clip 2 of 8 for this part. Most vehicle service facilities use solvents to clean parts. This raises both environmental and health concerns. Aqueous cleaning is far more cost effective than solvent use. Aqueous solutions are water based, nonflammable, and contain little or no VOCs. They also work as well as solvents and last longer. There are four types of aqueous cleaning units available, sink-top, spray cabinet, ultrasonic and immersion.

Microbial sink-top units are used like a traditional solvent sink. The solution of these units contain microbes that eat the oil and organic soils cleaned off of parts. This minimizes waste and extends the life of the solution. These units are most effective on parts with light oil, grease and dirt and are used for quick cleaning jobs. Aerosol products should never be used over a microbial sink-top. The chemicals from such products can kill the microbes.
Author: California Department of Toxic Substances Control - Office of Pollution Prevention
Publication Date: 2003

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