Catalytic Activated Carbons for Dechlorination and Dechloramination

March 24, 2011 by dstadtler

Do they really work and, if so, how? By Gary Hatch, Ph.D. Introduction Chlorine and chlorine compounds Activated charcoal (otherwise referred to as activated carbon)…

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Softened Water Benefits Study: New Reports Related to Detergent and More Energy Savings

March 8, 2011 by dstadtler

by Pauli Undesser, CWS-VI The Water Quality Research Foundation (WQRF) released two new reports in February that, in combination with WQRF’s 2009 Study on Benefits…

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How Fast Can We Run? Ion Exchange Reaction Zones

February 21, 2011 by dstadtler

By Matthew Wirth Back in 1979 on my first day of physics class, the first problem the professor proposed to the class was this thought-…

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Softening Alternatives

January 8, 2011 by dstadtler

by C.F. 'Chubb' Michaud Hardness defined The perception of soft water by commercial/industrial users goes well beyond simply preventing scale. Water that contains divalent calcium…

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Water Cooler Convenience

January 8, 2011 by Nils Dailey

Ascent Product Co. of Downey, Calif., has introduced a new product this fall—the easy load water cooler. Utilizing U.S. patented technology, the fuss over lifting…

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High-Performance Nitrate Removal Ion Exchange System

November 21, 2010 by dstadtler

By Filip Rochette [caption id="attachment_1890" align="alignright" width="300"] Birchmoor Water Treatment Works NITREAT System[/caption] Introduction A major manufacturer has developed an innovative ion exchange system for…

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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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It’s Tough Being a Resin Bead

February 8, 2010 by dstadtler

by Matthew Wirth Resin lives in a hostile world. It is under continual attack from hydraulic shock, chlorine and chloramines degradation, fouling (particulate and organic),…

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