Dow Water Solutions News: Dow’s ADSORBSIA™ Titanium-Based Adsorbent Media awarded NSF Certification

Dow’s ADSORBSIA™ Titanium-Based Adsorbent Media awarded NSF Certification

New Arsenic Removal Product Will Help Customers Achieve EPA Compliance

Midland, MI - May 16, 2005

ADSORBSIA titanium-based arsenic removal media, recently introduced by The Dow Chemical Company is now certified by the NSF, under NSF/ANSI standard 61 for use in drinking water applications. This NSF certification is without limitations pertaining to flow rate or rinse requirements. This provides maximum flexibility in design allowing for lower cost systems.

ADSORBSIA arsenic removal media offers improved performance and cost advantages over activated alumina or iron oxide-based adsorbent media. Currently available in North America, ADSORBSIA media is designed to help municipalities comply with pending EPA regulations which will require municipal drinking water in the United States to have arsenic levels below 10 parts per billion (ppb), down substantially from the currently acceptable level of 50 ppb. The new regulations go into effect in 2006.

"We expect ADSORBSIA titanium-based media to quickly become the standard for municipalities as they seek to meet the new EPA regulation," said Dan Rice, project manager, Liquid Separations New Business Development. "ANSI 61 certification shows how Dow was able to leverage the unique properties of titanium to offer performance far superior to traditional adsorbent media while still providing the high quality water required by the standard. This certification is the latest example of our commitment to help our customers deliver the highest quality water at the lowest total cost."

ADSORBSIA arsenic removal media features a nanocrystalline structure that helps provide faster kinetics allowing for smaller diameter vessels and a smaller system footprint driving lower capital and operating costs. ADSORBSIA media offers the highest capacity in a wide range of water conditions. Higher capacity means longer media life and fewer media changeouts. When replacement it required, the fact that ADSORBSIA is sold as a dry, free-flowing white granule, makes it easy to install and maintain. Removing both As(V) and As(III) without pretreatment, ADSORBSIA media is effective across a wide pH range, and exhibits a stable performance during pH fluctuations. It is also available in powder form.

ADSORBSIA media's high capacity makes it an ideal, non-regenerable single-use product; an affordable, easy to operate approach, especially for small or mid-sized systems. Eliminating regeneration means avoiding the hassles and cost of chemical storage and usage while eliminating waste stream disposal issues. The product's high affinity for arsenic also allows the media to maintain a strong hold on the removed arsenic, allowing for easier and safer disposal. ADSORBSIA media also features a longer useful life than traditional adsorbent media, for a more productive, cost-advantaged operation.

Dow is a leader in science and technology, providing innovative chemical, plastic and agricultural products and services to many essential consumer markets. With annual sales of $40 billion, Dow serves customers in 175 countries and a wide range of markets that are vital to human progress: food, transportation, health and medicine, personal and home care, and building and construction, among others. Committed to the principles of sustainable development, Dow and its 43,000 employees seek to balance economic, environmental and social responsibilities. References to "Dow" or the "Company" mean The Dow Chemical Company and its consolidated subsidiaries unless otherwise expressly noted.

For more information, visit www.dowex.com/adsorbsia or call the Customer Information Group at 1-800-447-4369.

For Editorial Information:

Kristina Schnepf
The Dow Chemical Company
(989) 636-9086

Sarah Madley
Gibbs & Soell, Inc.
(212) 697-2600


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