ion exchanger plant Articles

  • Magnetic Ion Exchange Solves Problems

    In 2004, Big Elk Water Association, near Estes Park, Colo., earned the unenviable Environmental Working Group label of Colorado water system with the worst quality water. Despite multiprocess treatment, BEWA’s finished water had some of the highest concentrations of total trihalomethanes (TTHMs) and haloacetic acids (HAA5) in the state. BEWA delivers water to about ...


    By IXOM Watercare

  • Nitrate Removal by Countercurrent Ion Exchange

    Nitrate removal technology by continuous countercurrent ion exchange from potable water. High flow capacity, low waste generation. This ICHEM award winning technology is the industry standard used in the United Kingdom. More than 20 installations installed. PuriTech's patented multi-port valve is at the center of each production skid. At average, each unit produces a maximum waste ...


    By PuriTech Ltd

  • Improving the biological stability of drinking water by ion exchange

    To guarantee a good water quality at the consumer’s tap, natural organic matter (NOM) should be (partly) removed during drinking water treatment. The objective of this research is to measure the effect of NOM removal by ion exchange on the biological stability of drinking water. Experiments were performed in two lanes of the pilot plant of Weesperkarspel in the Netherlands. The lanes consisted of ...


    By IWA Publishing

  • Ionex- Versatile ion exchange technology for Nitrate removal

    Belgian separations technology company PuriTech (www.puritech.be) has designed an ion exchange system that improves liquid–resin contact efficiency while reducing plant operating costs and capital expenditure. Targeted at a broad range of industries, one area where the system is now showing its strength is in the removal of nitrates from drinking water, asPuriTech's Filip ...


    By PuriTech Ltd

  • MIEX® DOC Process - A New Ion Exchange Process

    The MIEXÒ DOC Process is a novel process that utilises ion exchange for the removal natural organic matter (NOM) in drinking water treatment. The process was developed by Orica Watercare in partnership with the CSIRO Molecular Sciences and SA Water AWQC. A detailed description of the MIEXÒ DOC Process and trial results from several development stages can be found elsewhere (Nguyen et al., 1994 ...


    By IXOM Watercare

  • An Evaluation of Magnetic Ion Exchange (MIEX®) for NOM Removal

    A new process for the removal of natural organic matter (NOM) was developed in Australia by Orica Watercare and South Australian Water Corporation. It employs a strongly basic anion exchange resin to remove NOM from water. In the first stage of the process, the (180 μm) MIEX® resin is mixed with the water to be treated and its small size encourages rapid removal of NOM. The resin beads also ...


    By IXOM Watercare

  • Recent Papers in Adsorption and Ion Exchange Processes

    Italian drinking water treatment plants (DWTP) generally use chlorine-based chemicals to achieve the oxidation/disinfection phases of their treatment trains. The main problem related to the application of such disinfectants consists in the formation of disinfection by-products (DBPs) as a result of the reaction with organic substances in the water. Italian regulations set very strict limits for ...


    By IWA Publishing

  • What is an Ion Exchange System and How Does it Work?

    Ion exchange (IX) systems are used across a variety of industries for water softening, purification, and separation purposes. While the chemistry of individual ion exchange reactions vary from one application to the next, IX is a treatment process where dissolved ions are replaced by other, more desirable, ions of a similar electrical charge. If you’re wondering whether IX is right for your ...


    By SAMCO Technologies, Inc.

  • Bioregeneration of Spent Ion-Exchange Resin Loaded with Nitrate/Perchlorate and Biofouling Removal

    A new process has been developed that regenerates perchlorate/nitrate-contaminated ionexchange resins (IX) biologically without requiring the use of brine. The process consists of directly contacting perchlorate/nitrate-loaded IX resin with a perchlorate/nitrate-reducing microbial culture under anoxic/anaerobic conditions leading to conversion of the perchlorate and nitrate load on the resin to ...

  • Novel ion-exchange system softens produced water for steam generation

    As California entered a period of severe drought in 2008, the challenges of using thermal methods to extract heavy oil became compounded by the difficulty of securing freshwater sources from which to generate the high-quality steam that these methods require. In an effort to manage the crisis, then-Gov. Arnold Schwarzenegger proclaimed a state of emergency and enacted widespread ...


    By Eco-Tec Inc.

  • Worlds First Magnetic Ion Exchange Water Treatment Plant to be Installed in Western Australia

    Since the mid-1980s, the Water Corporation of Western Australia (WCWA) has been investigating technologies to prevent an intermittent ‘swampy’ odor occurring in the city of Perth’s treated ground-waters (O’Leary and Herbert, 1998). Groundwater contributes around 50% of the water supply for Perth, which has a population of approximately 1.3 million. The Wanneroo Groundwater Treatment Plant (GWTP) ...


    By IXOM Watercare

  • Failing Brine Piping Replaced at World`s Largest Ion Exchange Membrane Plant

    Fabricated Plastics Limited is headquartered in Maple, Ontario, located on the northern outskirts of Toronto. One of North America's largest custom composite and dual laminate fabrication companies. Fabricated Plastics is dynamic, energetic, creative and resourceful. Engineering design, problem solving and fabrication are world class with the result that Fabricated Plastics is frequently invited ...


    By Fabricated Plastics Limited

  • 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.

  • Selective DBP Precursor Removal with an Innovative Ion Exchange Process

    The City of Chesapeake, Virginia has provided a reliable and safe drinking water to its customers for many years. The City has been providing this drinking water despite a water supply that is extremely high in organics with seasonal outbreaks of chlorides.  As a result, the 10-mgd Northwest River Water Treatment Plant receives water that is frequently difficult-to-treat. This water requires very ...


    By IXOM Watercare

  • Evaluation of a pilot plant for removal of nitrate from groundwater using ion exchange and recycled regenerant

    A combined system of ion exchange (IX) and advanced biophysical treatment of a recirculating regenerant was tested for nitrate removal from groundwater with minimal brine discharge and chloride addition to the product water. Using well water containing 21.5 ± 1.4 mg NO3−-N/L, optimal IX operation was found at a service cycle of 500 bed volumes (BV). Product water nitrate concentrations ...


    By IWA Publishing

  • Use of Continuous Ion Exchange Process (MIEX®) to Remove TOC and Sulfides from Florida Water Supplies

    Introduction Many Florida water utilities face a number of challenges in treating their water supplies to meet the current EPA water quality standards. These challenges will only increase as the EPA tightens these standards and for many utilities, conventional treatment processes will no longer be suitable. Ion exchange has long been recognised as a technology capable of removing many dissolved ...


    By IXOM Watercare

  • An assessment of nutrient dynamics in streambank soils of the Lower Little Bow River in southern Alberta using ion exchange membranes

    Nutrient dynamics in streambanks may impact nutrient movement to water, and may be influenced by cattle activity, river water level fluctuations, and time. Our objective was to determine the influence of these factors on nutrient (NO3-N, P, S, Fe, Mn, Cu, Zn, Ca, Mg) dynamics in streambanks along the Lower Little Bow River in southern Alberta using Plant Root Simulator or PRS® probes. ...


    By IWA Publishing

  • Applicability of ion exchange for NOM removal from a sulfate-rich surface water incorporating full reuse of the brine

    The raw water of water treatment works ‘the Blankaart’ (Belgium) is characterized by high levels of NOM (Natural Organic Matter), alkalinity and sulfate. From 2006 until present, the possibility of applying fluidized ion exchange for NOM removal has been investigated at the plant. Pilot testing using Miex® (Magnetic Ion Exchange) resin demonstrated that under standard ...


    By IWA Publishing

  • Full Scale Magnetic Ion Exchange Process Tested by Historically High DOC Levels

    The Aireys Inlet Water Treatment Plant (WTP) is located about 150 kilometres from  Melbourne on the Great Ocean Road. The WTP utilises a conventional upflow sludge blanket clarification process. The raw water source for this plant is characterised by high DOC levels. Despite operating in an enhanced coagulation mode sufficient DOC removal was not able to be achieved. This resulted in high ...


    By IXOM Watercare

  • Chemical fractionation and speciation modelling for optimization of ion-exchange processes to recover palladium from industrial wastewater

    Palladium is used in several industrial applications and, given its high intrinsic value, intense efforts are made to recover the element. In this hydrometallurgic perspective, ion-exchange (IEX) technologies are principal means. Yet, without incorporating the chemical and physical properties of the Pd present in real, plant-specific conditions, the recovery cannot reach its technical nor ...


    By IWA Publishing

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