Process Waste Assessment for spray cleaning with trichloroethylene. Final PWA report, Level A.

摘要

A Process Waste Assessment (PWA) was performed on the trichloroiethylene (TCE) spray cleaning operation. This process is used on field returned parts shield to the Kansas City Plant (KCP) for rework, reacceptance, and reuse. Trichloroethylene is a chlorinated hydrocarbon that is number two on the KCP list of Priority Pollution Prevention Issues. This solvent is a frequently used cleaner. Because of the volume used in the department, and the KCP list of Priority Pollution Prevention Issues, the trichloroethylene spray cleaning operation was chosen as the most immediate process requiring review. As a result of the PWA on the TCE spraying cleaning process, several ideas and options were discussed to eliminate TCE usage and waste generation. The goal of the PWA team and the process/product engineers is to eliminate TCE usage and waste generation by October 1992. This will be done by using an alternate solvent or by an alternate cleaning method. parts which require TCE by definition will be studied to determine a suitable replacement solvent. All activities of this nature will be coordinated with the proper Design Agency and KCD product engineer. Future factory order routings on active parts will not require the use of TCE as a cleaning solvent, unless drawing definitions require it.