Corpus Christi Army Depot

Year Submitted: 2003

Process: Parts Cleaning

Industry: Military

Wastes Reduced: Solvent

Substance: TCE

Equipment: Ultrasonic Cleaner

Location: Corpus Christi TX

No. of employees: 3500

Contact: Chuck Gawanes

Phone: (512) 939-4170

Description:

A system was installed in April of 1994 that replaced the current solvent-based degreasers and parts washers. The old equipment used 1,1,1 Trichloroethane (TCE) which is a hazardous waste.

P2 Application:

The installation of ultrasonic cleaning equipment replaced a process that ceased production as of December 31, 1995. CCAD has experienced lower operating costs since the implementation of this equipment.

Environmental Benefits:

Reduced or eliminated hazardous wastes from cleaning units that used chlorinated solvent degreasers and cleaners. TCE is a volatile solvent resulting in a high evaporation rate and release of volatile organic compounds (VOC). The removal of this substance eliminates a Class I ozone-depleting substance.

Details of Reductions

Additional Information :

Initial capital costs were $487,000 with a yearly savings of $198,000. The savings are due to a reduction in hazardous waste regulations and disposal. The payback period is approximately 2 ½ years.

Source: TCEQ