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    |   


STL, Inc.

Year Submitted: 2003

Process: Sample extractions using Methylene Chloride

Industry: Laboratory

Wastes Reduced: Solvent

Substance: Methylene Chloride

Equipment: Continuous Liquid Liquid Extractors (CLLE's)

Location: Austin TX

No. of employees: 62

Contact: Neal Salcher

Phone: 512-310-5215


Environmental problem was the amount of Methylene Chloride being disposed of over the course of one year. Methylene Chloride is used as the extraction solvent for the preparation and analysis of environmental samples in the analytical testing industry as per EPA protocols.

P2 Application:

Previously, environmental samples were extracted using ~ 450ml of Methylene Chloride in traditional "Continuous Liquid Liquid Extractors". Upon modification of the extractors, the laboratory was able to reduce the amount of Methylene Chloride needed by 35%, and still adhere to the EPA guidelines for sample preparation.

Environmental Benefits:

Reduction of Methylene Chloride use of 5.5 tons per year, and the potential to become a small quantity genarator by 2004.

Details of Reductions

Additional Information :

Annual savings for 2002 are estimated at $15,000.

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