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

La Marque
May 31, 2017

Houston
Nov, 14-16, 2017,

Arlington
Dec. 5-7, 2017

 

More...

 

Environmental Management Systems Workshops

Austin
June 6-9, 2017

Arlington
July 18-21, 2017

Austin
August 8-11, 2017

Lake Charles
Sep. 26-29, 2017

Arlington
Dec. 12-15, 2017

 

More...

Case Study Database

           Add Story    |    Search Case Studies    |   

 

E. I. du Pont de Nemours & Co., Inc.

Year Submitted: 2003

Process: Pumping

Industry: Chemical Manufacturing

Wastes Reduced: Wastewater

Location: Orange, Orange County TX

No. of employees: 2000

Contact: R. H. Batig



Description:

In the Adiponitrile Production Unit 36 pumps are used to pump either sumps or process equipment to the waste treatment facilities prior to deepwelling the aqueous waste. These pumps are equipped with a single mechanical seal and a throttle bushing. The estimated 3 gpm of spent seal flush water mixes directly with the pumpage, and adds to the waste load.

P2 Application:

To minimize expenditure and still provide a flushed seal, we installed a solenoid valve connected to pump motor controls which allows seal flush water to flow only when the pump is running. In addition we installed a rotometer for flush water flow measurement and control and thus can reduce the amount of waste generated.

Environmental Benefits:

Estimated waste water reduction is approximately 57MM gal/yr.

Details of Reductions

Additional Information :

Payback period for these modifications is under a year.

Source: TCEQ



SHEP Shield
Safety
Health and
Environmental
Professional



ERP Shield
Environmental
Regulatory
Professional



ESP Shield
Environmental
Science
Professional



EMP Shield
Environmental
Management
Professional

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