Texas Instruments

Year Submitted: 2003

Process: Metal Machining

Industry: Electronics Manufacturing

Wastes Reduced: Oil

Substance: Machining Coolant

Equipment: Membrane Filter

Location: McKinney TX

No. of employees: 2500

Contact: Dennis Miller

Phone: (214) 952-4867

Description:

As part of Texas Instruments' program to reduce waste throughout the organization the McKinney Model Shop formed a team to evaluate our waste stream. It became immediately evident that our largest waste stream was caused by machining coolant that was contaminated. The waste coolant is a Class 1, Non Hazardous waste. After evaluating various solutions we decided to purchase Koch Koncentrator. This system used an Abcor Membrane to separate out the water from contaminated coolant.

Environmental Benefits:

For a $4699 investment we reduced our waste coolant from 17,138 lbs in 1992 to 6,317 lbs in 1993. This is a 5 ton (63%) reduction annually. The 1992 figure would have been higher but we installed the unit in August of 1992.

Details of Reductions

Source: TCEQ