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Case Study Database

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CMI, Texas, Inc.

Year Submitted: 2003

Process: Machining

Industry: Metal Fabrication

Wastes Reduced: Wastewater

Substance: Cutting Fluids

Equipment: Floor Cleaning Solution

Location: Nuevo Laredo MEXICO

No. of employees: 800



Description:

CMI recycles all of its water based cutting fluids through a Henery filter. However, after a period of time the fluid started having a high conductivity through contamination. This would eventually lead to break down in the cutting machines requiring down time to repair and replacement of all or some of the cutting fluid. It was determined that one of the major contaminates was the cleaner used to wash the floors. The cleaner wash a high phosphate detergent that lead to the high conductivity measurements. The cleaner also emulsified tramp oils in the cutting fluid making separation difficult. By switching cleaners this problem was eliminated.

P2 Application:

CMI evaluated several cleaning systems and finally settled on a cleaner called Haz-Clean BT from Delta-Omega Technologies Inc.. The aqueous based cleaner is non-hazardous and acts as a surfactant to remove oil from a surface without emulsifying it.

Environmental Benefits:

CMI is able to run for much longer periods on the same batch of cutting fluid. This has reduced the generation of oily waste water by 80,000 gallons a year. At the same time the new clearer works better at cleaning the floor making the workplace cleaner and safer.

Details of Reductions

Additional Information :

Reduced purchases of cutting fluids saves CMI about $26,000 a year. In addition reduced down time is saving the company over $280,000 a year.

Source: TCEQ



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