Pollution Prevention Assessment for a Manufacturer of Combustion Engine PistonRings

摘要

The WMAC team at the University of Tennessee performed an assessment at a plantthat manufactures piston rings. Steel and iron rings are machined, chrome-plated or coated, machined again, cleaned, and shipped to customers. The assessment team's report, detailing findings and recommendations, indicated that wastewater and wastewater treatment sludge are the waste streams generated in greatest quantity and that the greatest cost savings could be achieved by modifying the method of masking the rings prior to chrome plating.