DOW Ultrafiltration awarded water recycling/reuse certification

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• DOW™ Ultrafiltration SFP-2880 module certified for water recycling and reuse applications by California Department of Public Health; Certification reaffirms Dow's commitment to sustainable practices around recycled water

MINNEAPOLIS, MN, Jan. 19, 2010 -- Dow Water & Process Solutions, a business unit of The Dow Chemical Company (Dow), announces the acceptance of the DOW™ Ultrafiltration SFP-2880 module for water recycling applications. The approval certifies DOW Ultrafiltration as an acceptable filtration technology in compliance with the California Water Recycling Criteria (California Code of Regulations, Title 22).

California Water Recycling Criteria recognizes membrane filtration as an acceptable filtration technology provided prescribed performance requirements are reliably met. Performance criteria through testing must demonstrate the filtered wastewater not exceed 0.2 Nephelometric turbidity units (NTU) more than five percent of the time within a 24-hour period and 0.5 NTU at any time.

"Receiving this certification from the State of California for our highest productivity pressurized ultrafiltration element reaffirms Dow's commitment to sustainability," said Fabrien Creus, strategic marketing manager for Dow Water & Process Solutions. "Water scarcity and quality are two significant issues facing our world today, and we're pleased that our high-quality ultrafiltration technology is setting the standard around recycled water."

The DOW Ultrafiltration SFP-2880 offers 50 percent more membrane active area while decreasing the required system footprint by 30 percent. The SFP-2880 adds 20 inches of length when compared to the DOW™ Ultrafiltration SFP-2860, but allows flexibility in system design by reducing the number of modules, required piping, skid infrastructure, and the size of the compressed air and clean in place systems. In addition, the larger modules produce a smaller waste stream for disposal.

This technology is the same 0.03 µm hollow fiber membrane and pressurized ultrafiltration module that was tested and certified under NSF/ANSI 61 for use in drinking water installations. To learn more about DOW™ Ultrafiltration membranes visit www.dowwatersolutions.com.

About Dow Water & Process Solutions
Dow Water & Process Solutions has a 50 year legacy of providing innovative water and process solutions to both communities and industries alike. A differentiated business unit of The Dow Chemical Company, Dow Water & Process Solutions offers a broad portfolio of ion exchange resins, reverse osmosis membranes, ultrafiltration membranes and electrodeionization products, with strong positions in a number of major application areas, including industrial and municipal water, pharmaceuticals, power, residential water and wastewater and water reuse. More information about Dow Water & Process Solutions can be found at www.dowwatersolutions.com.

About Dow
Dow is a diversified chemical company that combines the power of science and technology with the "Human Element" to constantly improve what is essential to human progress. The Company delivers a broad range of products and services to customers in approximately 160 countries, connecting chemistry and innovation with the principles of sustainability to help provide everything from fresh water, food and pharmaceuticals to paints, packaging and personal care products. In 2008, Dow had annual sales of $57.4 billion and employed approximately 46,000 people worldwide. The Company has 150 manufacturing sites in 35 countries and produces approximately 3,300 products. On April 1, 2009, Dow acquired Rohm and Haas Company, a global specialty materials company with sales of $10 billion in 2008, 98 manufacturing sites in 30 countries and approximately 15,000 employees worldwide. References to "Dow" or the "Company" mean The Dow Chemical Company and its consolidated subsidiaries unless otherwise expressly noted. More information about Dow can be found at www.dow.com.

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