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Ahlstrom Adds to Filtration Offerings

March 27, 2008

Disruptor PAC improves purity and taste of water.

Ahlstrom has added a new product to its Disruptor filtration media line. Disruptor PAC is a medium using nanoalumina fiber technology for water filtration. This technology, which is licensed exclusively by Ahlstrom from the Argonide Corporation, can economically improve the purity and taste of nearly any water stream by efficiently removing a large variety of contaminants including virus, bacteria and humic compounds—naturally occurring, ultrafine particulate organic compounds, about the size of a virus, produced by the decay of natural organic matter found in surface waters. Prior to Disruptor PAC, humic compounds could not be completely removed by microfiltration or ultrafiltration polymeric membranes.

Disruptor PAC contains powdered activated carbon having an average particle size of only eight microns. The small particle size produces remarkably high dynamic adsorption as compared to conventional granular carbon or carbon blocks. With Disruptor PAC, the retention of the powdered activated carbon is accomplished through electro kinetic adsorption by the nanoalumina fibers in the product, not with binders or adhesives. This retention mechanism makes nearly all the pores of the powdered activated carbon available for adsorption of chlorine, iodine, volatile organic compounds, disinfection byproducts and natural organic material from water.
    
Ahlstrom believes that the unique features of Disruptor PAC will provide filter and filtration device manufacturers with the ability to design more efficient and cost effective products to improve the quality of both drinking water and waste water. Disruptor can be used in a wide range of water filtration applications including beverage manufacture, pharmaceutical make up water, point of use and point of entry filters, boiler and chiller water as well as prefiltration to reverse osmosis membranes. Disruptor PAC is easily pleated into nearly any size of filter cartridge providing superior filtration efficiency at high flow rates and very low pressure drop.
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