Tinker Air Force Base - Oklahoma City, OK
Pressure spray washers are used for general parts cleaning and degreasing. The spray washers have been used to eliminate both perchloroethylene and Freon degreasers, PD-680 solvent cleaning, and some hand cleaning processes.
Six pressure spray washers are currently in use. The
washers are essentially very large "dishwashers" in which parts are loaded, the door is closed, and the switch is set to a preprogrammed cycle. The spray washers offer several advantages over conventional degreasing.
First, spray washers remove both grease and soils whereas a degreaser will only remove the oils. Second, the detergent is biodegradable and produces no organic vapors. The spent solution can be discharged to a waste water treatment facility instead of being disposed of as hazardous waste. Third, the spray washers eliminate worker exposure to solvent vapors making the workplace safer and more enjoyable. Finally, the spray washer technology is sustainable, because the biodegradable detergents will not compromise the environment for future generations.
The spray washers have successfully replaced perchloroethylene and Freon degreasing. It has also replaced some PD-680 solvent cleaning and hand solvent cleaning operations. In addition to meeting all the cleaning requirements of the previousprocesses, the pressure spray washers have also decreased process times and increased worker safety.
The pressure spray washers have eliminated the use of 25,000 pounds per year of CFC-113, 220,000 pounds of perchloroethylene, and 8,000 pounds of PD-680. They have also resulted in quicker processing times and increased worker safety. Continued use of the pressure spray washers will identify additional uses which will result in less hazardous material usage and exposure.