Water Matters: Contaminant Reduction Claims Requirements – POU RO Systems

July 21, 2015 by dstadtler

By Rick Andrew POU RO systems are widely used to help treat residential water. Part of the reason for their broad use is their considerable…

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A Primer: Reverse Osmosis

October 18, 2014 by dstadtler

By Ryan Lessing The use of reverse osmosis systems in the water conditioning industry continues to grow. As more systems are placed into service, it…

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A Primer: Reverse Osmosis

October 13, 2014 by dstadtler

By Ryan Lessing The use of reverse osmosis systems in the water conditioning industry continues to grow. As more systems are placed into service, it…

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Rethinking Reverse Osmosis

July 13, 2014 by dstadtler

By Greg S. Reyneke, CWS-VI At WQA Aquatech 2014, two good friends of mine received well-deserved awards for their long-time and selfless service to the…

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A Primer on RO Application: Wastewater Concentration Calculations

January 18, 2014 by dstadtler

by Tanya Lubner, PhD Reverse osmosis technology finds numerous applications at the point of use as a final-barrier treatment for a series of anionic contaminants…

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Low-Energy (LE) RO Membranes

January 18, 2012 by dstadtler

by By Michael Kim, CWS-I Background In the early 1980s, RO membranes had a typical salt rejection of 96 percent at 225 psi operating pressure.…

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Reverse Osmosis Technology – Not Just for Water Purification

January 17, 2012 by dstadtler

By Peter S. Cartwright, P.E. The membrane technology of reverse osmosis has been around for many years now and is finding more and more applications…

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Pretreatment Technologies for Reverse Osmosis and Nanofiltration

August 18, 2010 by dstadtler

By Peter S. Cartwright, P.E., CWS-VI Introduction The crossflow pressure-driven membrane technologies of microfiltration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO) have become…

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