MEMBRANE TECHNOLOGY WHITE PAPERS
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Membrane Conference Offers Networking, New Technology
2/10/2014
AMTA, along with the American Water Works Association (AWWA) have teamed up to offer an alternative, presenting their third “Membrane Technology Conference & Exposition,” held March 10-14 in Las Vegas, Nevada.
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Is This The Future Of RO?
12/11/2013
A Q&A with Richard Stover, executive VP of Desalitech, discussing a reverse osmosis (RO) innovation that greatly increases recovery rates and overall efficiency, while also enhancing flexibility and reliability.
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New Process May Hold The Key To 'Economically Viable' Desalination
9/4/2013
An energy-saving alternative to reverse osmosis (RO) desalination promises to reduce costs by more than 82 percent. By Neil A. McCarthy, BA, MSEd, middle school math teacher, South-Central Los Angeles parochial school
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Zero Liquid Waste: A Desalination Solution For Chloride, Sulfate Limits
3/26/2013
Mining operations and other energy producers face a multitude of clean-water regulations that can seriously impact their businesses. Strict standards governing discharge into waterways can increase costs and inhibit production. Veolia Water Technologies is addressing these issues through advanced treatment processes that allow companies to generate clean water for reuse or environmental discharge with no substantial liquid waste. Called the Zero Liquid Waste (ZLW) approach, the industrial water desalination technology benefits the mining industry, which must contend with stringent new regulatory requirements that limit the discharge of chlorides and sulfates into streams, rivers, lakes and other bodies of water.
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Monitoring Membrane Fouling Potential: SDI Vs. Particle Detection
11/14/2012
Membrane fouling can have a significant impact on the performance of reverse osmosis (RO) systems, as well as on the cost of operating the systems (downtime, membrane cleaning, membrane replacement, etc.). The Silt Density Index (SDI) test has become the standard measurement for determining the fouling potential of RO make-up water. However, SDI results only offer “snapshots” of the quality of the makeup water at any given time. To truly understand the water that is being treated, and to optimize the pre-RO filtration system performance, water plant operators should consider utilizing online particle detection analyzers. By John W. Clark, and Joseph R. Zimmerman
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An Overview Of Membrane Technology And Theory
12/1/2011
Many simple filtration processes use a dead-end technique — the flow of liquid to be filtered is directed perpendicular to the filter surface, This is effective when the concentration of particles to be removed is low or the packing tendency of the filtered material does not produce a large pressure drop across the filter medium.
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Reverse Osmosis Desalination: A Feasible Alternative For Potable Water Supply
5/16/2013
Recent technology advances are making desalination less energy-intensive and less costly, bringing us closer to a long-sought solution to water scarcity. By James Smith, project manager, Constantine Engineering
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Do We Have To Sacrifice Performance To Be Green?
11/25/2013
The global use of membranes is widespread in municipal, industrial, and wastewater applications with reverse osmosis (RO) proving to be a highly effective and reliable method of advanced water treatment. Reuse applications have been particularly challenging for water treatment chemical companies as these highly variable feedwaters can contain any imaginable constituent, resulting in a wide array of site specific foulants. By Karen Lindsey, V.P. Operations, Avista Technologies, Inc.