demineralization Articles

  • Seven Ways Your Facility Isn’t Meeting Effluent Regulations and How to Solve Them

    Whether you own, operate, or help manage a municipal or industrial facility that deals with wastewater, it’s important to understand how wastewater treatment can play a significant role in the overall health of your business, especially when it comes to meeting effluent regulations. This is an important part of the wastewater treatment process to consider, as ignoring it could earn your ...


    By SAMCO Technologies, Inc.

  • Short-Bed Demineralization: An Alternative to Electrodeionization

    Abstract: To be competitive in the deregulated market, power producers are looking for ways to lower operating costs while maintaining a reliable supply. To this end, many plants have investigated innovative technologies for boiler make-up water treatment. One such technology is the combined reverse osmosis (RO) and electrodeionization (EDI) system. While this system offers several benefits, its ...


    By Eco-Tec Inc.

  • Aquatech supplies demineralized water treatment plant in madagascar

    The Facility Ambatovy, located in Madagascar, is a world-class, large tonnage nickel project that is positioned to be among the world’s biggest lateritic nickel mines. It is a lifelong project with an annual design capacity of 60,000 metric tons of nickel and 5,600 metric tons of cobalt. The site is located approximately 50 miles east of the capital of Madagascar, Antananarivo, and ...

  • Revolutionary Design of Demineralizer Plant for the Process Industry

    Introduction Although counter-currently regenerated ion exchange demineralizer (DM) plants have been widely available since the 1960’s, the past decade has seen the introduction of a new generation of demineralizer designs in North America and Europe. Promoted by several of the major resin manufacturers, these include UPCORE from Dow Chemical, PUROPACK from Purolite and AMBERPACK from ...


    By Eco-Tec Inc.

  • Chemical metering pumps solve CP&L’s demineralization problem

    In order to solve a plugging problem in injection system of its coal-fired Lee plan in Goldsboro, NC, Carolina Power & Light Co. replaced the system with two chemical metering pumps. The two chemical metering pumps, made by Hydroflo Corp., have withstood continuous exposure to regenerating chemicals for almost ten years and have required minimal maintenance to the utility. Lee ...

  • A pilot-scale study of backwashing ultrafiltration membrane with demineralized water

    This study investigates the effectiveness of different backwash waters on ultrafiltration (UF) fouling control on a pilot-scale setup. Surface water and ion exchange (IEX) pretreated surface water were used as feed water. Three backwash waters were tested: demineralized water, UF permeate and nanofiltration (NF) permeate. Results show that backwashing with demineralized water substantially ...


    By IWA Publishing

  • Application of backwashing with demineralized water for UF fouling control in UF-RO desalination

    The effectiveness of demineralized water backwash on ultrafiltration (UF) fouling control of seawater is investigated in this study. Fouling experiments for two different backwashes (UF permeate and demineralized water) were conducted at three fluxes: 120, 180 and 240 L/(h m2) to compare their fouling control efficiency on UF membranes. Results show that backwashing with demineralized water ...


    By IWA Publishing

  • Valve innovation drives ion technology

    A NOVEL multiport distribution valve is at the heart of a new ion exchange system that reduces plant operating costs and capital expenditure by improving liquid–resin contact efficiency. The patented IONEX process can be used for resource recovery and purification in a wide range of industries, as well as water demineralization. Ion exchange systems are already used extensively for water ...


    By PuriTech Ltd

  • 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 ...

  • QUA Provides FEDI technology to Sohar Refinery

    Project Background Orpic (Oman Oil Refineries and Petroleum Industries Company) required a thermal seawater desalination solution as part of its Sohar refinery improvement project to ensure an uninterrupted supply of fresh feed water to for its boilers. Orpic decided that a Multi Effect Distillation with Thermal Vapor Compression (MED-TVC) ...


    By QUA Group LLC

  • Taking the pressure off desalination

    California-based PAX Pure hopes to offer a new solution to water scarcity with its groundbreaking water purification tool. Developed by Jay Harman and Tom Gielda, PAX Pure technology desalinates and demineralizes water without membranes, moving parts or chemicals. Instead, the technology simply mimics high-altitude conditions. The big challenge with conventional ...


    By Ensia

  • Outsourced Water Treatment Plant for Boiler Make-Up Water

    Abstract: An outsourced Water Treatment Plant featuring down flow micro media filters, reverse osmosis units and short bed demineralizers designed to produce 66 l/s of makeup water for eight (8) functioning reactor-turbine units has been running for almost 4 years. Individual equipment and overall plant performance is assessed and plant optimization ...


    By Eco-Tec Inc.

  • Mechanisms regulating bioavailability of phenanthrene sorbed on a peat soil‐origin humic substance

    The organic matter–mineral complex plays an important role in regulating the fate of hydrophobic organic compounds (HOCs) in the environment. In the present study, the authors investigated the microbial bioavailability of phenanthrene (PHE) sorbed on the original and demineralized humic acids (HAs) and humin (HM) that were sequentially extracted from a peat soil. Demineralization treatment ...


    By John Wiley & Sons, Ltd.

  • East coast power plant realizes 95% water recovery

    The Facility Bechtel Power Corporation builta power plant in Northampton, Pennsylvania for U.S. Generating Company. The power plant burns culm, a lower quality coal rejected from use in previous decades. By using culm as the fuel, U.S. Generating will clean up a solid disposal site. The power plant contains the usual systems including cooling towers and demineralizers that produce waste ...

  • South Coast Steam Power, Puerto Rico and QUA’s Fractional Electrodeionization

    Project Background Puerto Rico Electric Power Authority (PREPA) is the owner of South Coast Steam Power Plant located at Guayanilla in the island of Puerto Rico, about 150 KM south of San Juan. This power station is one of PREPA’s oldest units and uses an oil fired boiler as part of its generation process. The plant decided to replace an ...


    By QUA Group LLC

  • Power plant converts gray water into boiler feedwater using hero technology

    The Facility The Bajio Power Project is a 600 MW combined cycle project owned by the Energía Azteca, a Mexican project company jointly owned by InterGen and American Electric Power. The build, own and operate facility is in commercial operation near the municipality of San Luis de la Paz in the state of Guanajuato, approximately 160 miles from Mexico City. In 1999, ...

  • 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.

  • Challenge #3 - Power Industry, Condensate Polishing

    A University installing new turbines for their expanded power plant was adding a new Cogeneration Facility, and needed to replace their existing water treatment system. The project required demolition of the existing system, temporary water service for their existing boiler feed equipment, and full treatment of water to produce 240,000-lb/hr steam. The system design had to be flexible enough to ...

  • Recochem Inc., Quebec Case Study

    Problem Recochem Inc., an international company based in Montreal, manufactures, packages, and distributes a vast range of chemicals for retail chain stores and the commercial market. Because of the continuing growth of the Company's sales, the Montreal plant decided to acquire a more effective water treatment system, in order to increase production of the demineralized water required for ...


    By H2O Innovation

  • 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

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