Zero Waste Logo The Zero Wate Network the University of Texas at Arlington Center for Environmental Excellence Environmental Training Institute Logo  

Join Us on:

Social Network Nav Bar

Lean and P2 Workshops

10/13/15 - 10/15/15

South Houston
11/10/15 - 11/12/15

New Orleans





Environmental Management Systems Workshops

Albuquerque, NM
05/12/15 - 05/15/15

Galveston, TX
07/28/15 - 07/31/15

Austin, TX
09/22/15 - 09/25/15

Arlington, TX
11/17/15 - 11/20/15



Case Study Database

           Add Story    |    Search Case Studies    |   


Texas Instruments

Year Submitted: 2003

Process: Piping

Industry: Electronics Manufacturing

Wastes Reduced: Packaging

Substance: Plastic

Equipment: Corrosion Resistance

Location: Stafford TX

No. of employees: 1400

Contact: Cherri Paluch, Patrick Williams

Phone: (713) 274-2043, (713) 274-3330


A pressurized, double contained, piped acid distribution system was installed to replace the manual filling of manufacturing process acid tanks from one gallon plastic bottles. The system delivers ten chemicals throughout the manufacturing area to over 40 points of use. The bulk chemical containers are stored in a central location, the acid dock, for safe chemical distribution control and monitoring. The bulk chemical containers, Mobile Chemical Vessels, are returned to TI's Chemical Center in Dallas for refilling. The remaining 1 gallon plastic bottles are sent to TI's Waste Chemical Center for cleaning, shredding and sent for plastics recycling.

P2 Application:

Due to the corrosive nature of the chemicals, extreme caution was taken when the piping materials were chosen. The material had to be corrosive resistant and still meet clean room purity standards. A teflon thermoplastic material, PFA, was chosen. Nitrogen is used to pressurize the distribution system instead of the traditional mechanical pumps to prevent corrosion and reduce maintenance requirements. An extensive leak detection system runs through all the secondarily contained lines and is continuously monitored by a computer. If two consecutive leak detectors are triggered, the affected chemical system is automatically depressurized (shutdown).

Environmental Benefits:

The Acid Dock installation decreased bottle disposal in 1992 by 63,000 pounds (71%) from 1991. It also eliminated fugitive emissions from manually filling acid tanks. The remaining emissions from the pressurized distribution system are abated through a 95% efficient scrubber with annual emissions less than one ton per year.

Details of Reductions

Additional Information :

The $3.3 million Acid Dock installation has an internal rate of return of 16% with a 3.8 year payback. The installed safety systems, double containment, leak detection, monitoring and alarm systems have reduced employee and environmental risks. The projected savings for waste disposal are $320K.

Source: TCEQ

SHEP Shield
Health and

ERP Shield

ESP Shield

EMP Shield

Attend a workshop and
earn credits toward a
Professional Certification



The Zero Waste Network is one of eight Pollution Prevention Resource Exchange P2RxCenters , serving as a national network of regional information centers: NEWMOA (Northeast), WRRC (Southeast), GLRPPR (Great Lakes), ZeroWasteNet (Southwest), P2RIC (Plains), Peaks to Prairies (Mountain), WSPPN (Pacific Southwest), PPRC (Northwest). We are a proud member of the National Pollution Prevention Roundtable.

National P2 Roundtable Logo
michael kors online outlet michael kors factory outlet online store michael kors outlet canada michael kors outlet online michael kors factory outlet fake michael kors bags cheap mk bags michael kors handbags clearance wholesale jordans jordans outlet cheap jordans china cheap authentic jordans cheap real jordans cheap jordans free shipping cheap jordans online discount jordans cheap jordans from china cheap air jordans louboutin pas cher louboutin soldes louboutin pas cher louboutin soldes air max pas cher air max femme pas cher air max pas cher roshe run pas cher air max one pas cher air max femme pas cher sac michael kors pas cher sac michael kors pas cher sac longchamp pas cher longchamp soldes sac longchamp pas cher longchamp pas cher moncler outlet moncler outlet moncler outlet