High Purity Water Articles

  • Combined ultrafiltration-electrodeionization technique for production of high purity water

    Electrodeionization (EDI) is the most common method to produce high purity water used for boiler feed water, microelectronic, and pharmaceutical industries. Commonly, EDI is combined with reverse osmosis (RO) to meet the requirement of EDI feed water, with hardness less than 1 ppm. However, RO requires a relatively high operating pressure and ultrafiltration (UF) as pretreatment which results ...


    By IWA Publishing

  • QUA’s FEDI Chosen for LNG Refinery

    Project Background Sabine Pass, a large LNG refnery in the United States, required a membrane desalination solution to cater to its extensive process water needs in order to produce a large amount of liquefed natural gas for export.  The water is used for injection for compressor turbines for methane, propane and ethylene, wash water for gas turbines and other utility make-up ...


    By QUA Group LLC

  • Review of med fundamentals and costing

    Introduction Low Temperature Multi Effect Distillation (LT-MED) is one of the most efficient thermal desalination processes currently in use. It incorporates technological advances which have resulted in reliable, durable and economical desalination plants producing high purity product water. These advances are as follows: Development of a unique design of a falling ...


    By IDE Technologies

  • Case study - High reactivity Metakaolin utilized in high performance Virginia bridge

    The Virginia Department of Transportation and Marshall Concrete Products have included Headwaters Resources’ HRM modified concrete as one of the high performance concrete mixes for the Virginia DOT “Smart Road” research project. Unlike most research that investigates one item on a limited scale in a laboratory, the Smart Road is a $35 million combined construction and research ...


    By Headwaters, Inc.

  • Sarlux project - a showcase MVC plant for the desalination industry case study

    The Sarlux Integrated Gasification Combined Cycle (IGCC) plant is the second largest in Europe and converts heavy oils (tar) into electricity, which is then fed into the Italian State Grid. A reliable and stable source of high purity, de-aerated water was needed to operate the largest Mechanical Vapor Compression (MVC) plant efficiently. IDE’s MVC solution has a remarkable record for simple ...


    By IDE Technologies

  • Comparison of Continuous Electrodeionization Devices

    Electrodeionization (EDI) is the standard method of generating high purity water bypolishing reverse osmosis permeate. The technology utilizes electrical current toremove ionic impurities while continuously regenerating cation and anion exchange resins. EDI is utilized in ...


    By Agape Water Solutions, Inc.

  • High Purity Boiler Water Production Using Municipal Wastewater at a Combined Cycle Gas-Fired Generating Station

    Abstract The recovery of wastewater for industrial uses presents many challenges for the design and operation of water treatment equipment. Since the term wastewater can be applied to a wide range of water sources from municipal sewage to storm runoff to industrial discharge water, the water characteristics may have great variability. As such, the equipment to treat wastewater must be robust ...


    By Eco-Tec Inc.

  • 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.

  • High Purity Boiler Water Production Using Municipal Wastewater at a Combined Cycle Gas-Fired Generating Station

    The recovery of wastewater for industrial uses presents many challenges for the design and operation of water treatment equipment. Since the term wastewater can be applied to a wide range of water sources from municipal sewage to storm runoff to industrial discharge water, the water characteristics may have great variability. As such, the equipment to treat wastewater must be robust and ...


    By Eco-Tec Inc.

  • Zero Discharge Plants

    When the client desires to comply with certain company policies or local regulations requiring him to avoid any final discharge, a series of treatments need to be considered in order to recycle the water and dispose of the residual matter. First of all, Panta Rei provides a proper biological treatment in order to carry out the degradation and reduction of the main pollutants such as BOD, COD and ...


    By Panta Rei Srl

  • Emineralizers: big problems, small solutions

    Introduction There are thousands of demineralizer around the world that provide high purity water for boilers, turbines, industrial and commercial processes. Many of these demineralizers are over 25 years old. In almost all cases, raw water composition, flow rates, daily throughput requirement and treated water quality have all changed. Today, these demineralizers are working harder than ...

  • EDI for Power Plants -- Importance of silica

    Power plants use high purity water to drive steam turbines. Cogeneration plants are highly efficient, using both exhaust turbines and high pressure steam turbines. In the 1960's, boilers operated at 450C (840F) and 4MPa (40 atmospheres). Today's leading edge boilers operate at 620C (1150F) and 30MPa (300 ...


    By SnowPure Water Technologies

  • Conductivity Measurement in high purity water samples below 10 microsiems/cm

    High Purity Water Resistivity/ Conductivity Measurement Ultra-Pure Water without any chemical impurities will still have a conductivity because of the presence of H* and OH" ions due to the self-ionization of water. Ultra-pure water has a conductivity of 0.055 HSiemens'cm or a resistivity of 18.18 mQ-cm at 25 °C. In order to know the conductivity or resistivity of ultra-pure water it is ...


    By IC Controls Ltd.

  • Sand Plant

    Sand Plant,Sand Processing Plant The sand plant reserve came from a old stream bed, that had a 20 to 30 ft thick sand deposit in it. It was sampled and the lab testing revealed that there was less than 0.03% iron, and a few other metals (TiO2, Al2O3, MgO). The sand plant equipment length of the deposit was over a mile, so ...


  • Dynatec Provides Complete System for Aerospace Manufacturer

    Dynatec is engaged to provide a comprehensive water and wastewater treatment solution for an aerospace manufacturing process. Background Goodrich Aerospace was relocating a manufacturing facility that performs surface treatment for aircraft metal parts. The facility produces about 150,000 gallons per day of wastewater that contains hexavalent chrome, titanium, and other ...


    By Dynatec Systems Inc.

  • High purity boiler make-up water for esso thailand

    The Facility The Esso refinery is located in Sriracha, Thailand approximately 50 miles south of Bangkok. Due to increased refinery demands, Esso embarked on a facility expansion to more than double the refinery’s production capacity. The Problem The expansion plan required additional high purity water to be used for boiler make-up. With the existing ...

  • MSF plants provide over 46 years of reliable high purity water production

    The Facility Southern Peru Copper Company’s (SPCC) facility located in Ilo, Peru requires high purity water for boiler make-up at the smelter power plant. Process water for various smelter and mining operations and potable water for the town and Port of Ilo is also needed. SPCC’s first Aqua-Chem ICD long tube multistage flash (MSF) seawater desalination plant producing ...

  • Add polish to high purity water

    Electrodeionization (EDI) has recently gained widespread acceptance by water treatment companies and end users alike for almost all applications requiring high-purity water. EDI has proven to be a reliable, cost-effective solution for both end users and water treatment companies. End users purchasing capital equipment can eliminate on-site chemical regeneration. Water treatment companies selling ...


    By Agape Water Solutions, Inc.

  • 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.

  • Challenge #2 - Manufacturing, General Industry

    A small industrial entrepreneurial company on the East Coast was considering using high purity water in the production of their high quality product. They were concerned the ‘larger’ water companies would not give the project the attention it deserved, and that the system may cost too much. They came to Applied Water Solutions, Inc. for the solution. Solution AWS met with the client and ...

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