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Corpus Christi Army Depot

Year Submitted: 2003

Process: Machining

Industry: Military

Wastes Reduced: Hazardous Waste

Equipment: Ultrafiltration

Location: Corpus Christi TX

No. of employees: 3500

Contact: Steve R. Connor

Phone: (512) 939-2733


The depot installed a system designed to extend the life of water based machine coolant oils. The recovery unit was designed to purify and remove via ultrafiltration, metal filings, odor causing bacteria, dirt and other solids from machine oils during their actual use and without shutdown of the equipment. The first three units were purchased fromHyde Products, Inc. of Cleavland, OH and became operational in 1992. The units have the capacity to filter 100 gallons per hour.

Environmental Benefits:

The system can increase life of the coolant by four fold. This has lead to the reduction of hazardous waste coolant of 3,146 gallons or 28,000 pounds per year.

Details of Reductions

Additional Information :

The three units cost $93,000 and have reduced operating costs by $30,000 per year with better product finishes and increased production rates. Savings from disposal alone were $13,720 a year.

Source: TCEQ

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