Membrane filtration system providing renewable water supply to CO city

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PORT WASHINGTON, NY, Nov. 8, 2013 -- A new water treatment system installed at the Plum Creek Water Purification Facility in Castle Rock, Colo., is enabling the city to treat and deliver renewable surface water to residents and businesses for the first time.

As part of the facility, which opened in June 2013, Pall Corporation's Aria system is a key component in a unique seven-step treatment process the Colorado town is using to treat renewable surface water from alluvial wells near East Plum Creek that are under the influence of surface water.

"The Pall Aria water treatment system is part of a process that is enabling the town to transition from non-renewable water sources up to a 35-percent renewable supply," said Walt Schwarz, P.E., Town of Castle Rock Utilities project manager. "The opening of the plant represents an important step toward our goal of 75-percent renewable water. The Pall system gives us the flexibility we need to accelerate our efforts as we pursue our long-term water goals."

The Pall Aria(TM) water treatment system is part of a process that is enabling the town of Castle Rock, Colo., to transition from non-renewable water sources up to a 35-percent renewable supply. (Photo: Business Wire)


With the opening of this new facility, the town is not only moving closer to realizing its stated renewable water goal, but is also expected to save on total water purification costs. Featuring a treatment capacity of up to 4 million gallons per day (MGD), the Pall Aria system is currently treating approximately 2.7 MGD. The treatment facility, including the Pall system, is expandable to 12 MGD, which will help enable the town to meet future demand.

After the membrane filtration system was delivered and installed, Pall technicians provided start-up assistance and training for the town's plant operators. Pretreatment includes aeration, flocculation/sedimentation and green sand filtration, and is designed to remove iron, manganese and organic matter prior to membrane filtration. Membrane filtration provides a barrier to suspended particles as well as organisms such as Giardia lamblia and Cryptosporidium that are associated with surface water.

About Pall Corporation

Pall Corporation (NYSE:PLL) is a filtration, separation and purification leader providing solutions to meet the critical fluid management needs of customers across the broad spectrum of life sciences and industry. Pall works with customers to advance health, safety and environmentally responsible technologies. The company's engineered products enable process and product innovation and minimize emissions and waste. Pall Corporation is an S&P 500 company serving customers worldwide. Pall has been named a "top green company" by Newsweek magazine. To see how Pall is helping enable a greener, safer, more sustainable future, follow us on Twitter @PallCorporation or visit www.pall.com/green.

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