mixed bed deionization Articles

  • TB 57: Rokeby generating station saves 50% in capital expense by using liqui-cel® 14x28 membrane contactors to remove CO2 to extend mixed bed resin life

    Lincoln Electric Systems (LES) recently commissioned a membrane decarbonation system using Liqui-Cel® 14x28 Membrane Contactors to remove CO2 prior to their mixed bed deionizers. The system was installed at the Rokeby Generating Station (RGS) in Lincoln, Nebraska. BackgroundThe Rokeby Generating Station is LES’ primary peaking power station, totaling 255 MW and consisting of 3 duel fuel ...

  • Power Industry using Micro-Media Filtration and short-bed ion exchange

    With the demand or higher efficiencies, lower maintenance and operating costs for boilwers and turbines, high-purity water treatment systems are becoming more crucial to the operation of power plants. Modern power plants, operating at supercritical and ultra upercritical boiler pressures and temperatures, require high-purity water that approaches quality levels at the theoretical levels. ...


    By Eco-Tec Inc.

  • White paper - Ion Exchange Theory

    Ion exchange is the removal of unwanted “charged” particles, called ions, from raw water. In this process the ions are transferred to a solid particle, called an ion exchanger, which accepts these ions while returning an equal number of desirable ions. The exchangers are made of porous plastic resin, which gives them many “exchange sites”. In the basic reaction, an ion ...


    By W2 Systems

  • Electrodeionization

    Electrodeionization (EDI) is a water treatment technology that has gone from an unproven and unknown commodity to one that has revolutionized the industry in the past 20 years. The technology was first introduced to the market in 1987 by Ionpure Technologies. EDI is used in small and large applications. Laboratories use EDI in systems as low as 360 gallons per day (gpd), while power plants, ...


    By Agape Water Solutions, Inc.

  • Methods of Purification

    Water Innovations Water Systems Carbon Filtration is used for several reasons. Its primary purpose is the reduction of chlorine to less than 0.1 ppm. Chorine can damage softener resins, reverse osmosis membranes, and mixed bed deionization resins. Activated carbon will also help control tastes and odors, provide organic and hazardous organic chemical ...


    By Water Innovations, Inc

  • Spiral wound EDI technology part 1

    Water purification by reducing the concentration of ionic impurities has been an area of considerable technical interest. Water treatment technologies have rapidly advanced in recent years to where a myriad of options have been developed for this purpose. The most well-known processes include electrodialysis, electrodeionization (EDI), liquid chromatography, membrane filtration, and ion exchange. ...


    By Agape Water Solutions, Inc.

  • Pharmaceutical / Personal care product manufacturer promotes quality standards

    Challenge Pharmaceuticol manufacturers demand high qualify water with the fewest dissolved solids possible, to promote product consistency. A Canadian manufacturer of pharmaceutical/personal core products was looking to maintain water quality specifications to promote product consistency and improve product shelf life. First the source water for the manufacturing plont comes from ...


    By Culligan Matrix Solutions

  • Cost reduction and operating results of RO-EDI

    Electrodeionization (EDI) uses electrical current, in lieu of acid and caustic chemicals, to regenerate cation and anion resin. Reverse osmosis/EDI systems are now widely used to replace conventional mixed-bed ion-exchange (IX) technology in a broad range of applications. Proven effective at high flowrates, EDI has in recent years been incorporated in water treatment plants around the world, ...


    By Agape Water Solutions, Inc.

  • Pettit national ice center cuts operating costs, perfects ice quality with Culligan Matrix Solutions

    Challenge Pettit National Ice Center, located in Milwaukee, Wl, is a U.S. Olympic Training Site and the only indoor sea-level ice oval in the U.S. The facility has helped many top speed skaters reach their Olympic medal dreams - while also providing a location for frequent national and international competitions. In fact, all of the U.S. speed skaters who have participated in the last ...


    By Culligan Matrix Solutions

  • Methods of Water Purification

    This article is excerpted from 'Pure Water Handbook' published by Osmonics®, Inc. of Minnetonka, Minnesota USA and is printed with permission of Osmonics, Inc. Water treatment can be defined as any procedure or method used to alter the chemical composition or natural 'behavior' of a water supply. Water supplies are classified as either surface water or groundwater. The majority of public or ...

  • Membranes: TOC reduction using membrane technology

    Honeywell’s Solid State Electronics Centre (SSEC) in Plymouth, Minn., had been trying to reduce the level of total organic carbon (100) in its high-purity deionized water system for many ...

  • Ultraviolet Light Oxidation of Free-Chlorine in Water

    Chlorine is the most frequently used chemical for water disinfection. Many industrial and commercial manufacturing facilities cannot tolerate the introduction of chlorine into the process because of contamination and unwanted chemical reactions. Chlorine affects the flavour and odour of drinks and fluids, accelerates corrosion on process vessels and piping, and can also damage delicate process ...

  • Crossflow Membrane Filtration High-Purity Water Systems

    INTRODUCTION As the electronics industry continues to provide us with such products as high resolution television, notebook size portable computers and cars with automatic navigation systems, it becomes necessary to produce semiconductors with finer device geometries to allow for efficient placement of more circuits per a given area. This requires increased control of a semiconductor's material ...

  • Detecting Mercury in Water

    Determination of Mercury (Hg) in Water by Hand-Held, Portable Cold Vapor Atomic Fluorescence SpectrometryWater is the most familiar and most abundant compound on Earth, making up 71% of its surface area.[1]It is a vital component for all known forms of life and is the aquatic habitat for thousands of species of microalgae, fish and shellfish. [2] With the presence of running water in our ...


    By Arizona Instrument LLC

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