DESALINATION CASE STUDIES AND WHITE PAPERS

Desalinated Water Supply Helps Plant Meet Strict Environmental Regulations
Desalinated Water Supply Helps Plant Meet Strict Environmental Regulations

STX Heavy Industries, a Korean EPC, recently implemented a flue-gas desulfurization (FGD) system at a coal-fired power plant in Chile in order to comply with the country's strict environmental regulations. The FGD process requires large amounts of high-quality water. STX.

High Recovery Reverse Osmosis Water Treatment For Industrial, Agricultural, And Municipal Applications
High Recovery Reverse Osmosis Water Treatment For Industrial, Agricultural, And Municipal Applications

Industry accounts for nearly 60 percent of fresh water withdrawals in the developed world and agriculture consumes 70 percent of fresh water supplies globally, according to UNESCO.

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DESALINATION PRODUCTS

Electrochemical Nano Diffusion (END) Electrochemical Nano Diffusion (END)

Based on proven electrodialysis reversal (EDR) technology, the END® system transforms two key components of traditional EDR to deliver maximum recovery with minimum energy consumption in numerous brackish water treatment applications.

Arkal Super Galaxy Self-Cleaning Disc Filter Arkal Super Galaxy Self-Cleaning Disc Filter

The Arkal Super Galaxy is a high-flow rate, self-cleaning, automatic disc filter. It is practical for water and wastewater treatment plants, central water systems for irrigation, large cooling tower power plants, ballast water, and saltwater, as it handles desalination. In addition, it controls algae and reduces hydraulic filtration degrees to less than 20 microns. Its vertical and horizontal installation options accommodate all space issues.

Desalination Of Sea Water Desalination Of Sea Water
Desalination is the name given to processes that remove salt from water
Fluence Ready-To-Use-Modular Systems Fluence Ready-To-Use-Modular Systems

Fluence’s custom modular solutions for remote communities and urban populations cater to the needs of both rural and city dwellers, transient and permanent populations. We specialize in reverse osmosis and ultrafiltration systems — membrane separation processes that allow the removal of a wide variety of dissolved materials from water and effluent.

NIROBOX™ BW NIROBOX™ BW

Nirobox BW lets you tap into previously unusable groundwater sources.

Advanced Dissolved Gas Control Advanced Dissolved Gas Control

3M Liqui-Cel Membrane Contactors can reduce operating costs, lower maintenance, and simplify dissolved gas control using a small device that enables high performance and compact system design.

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DESALINATION PODCASTS

How Far Can RDI Desalination Go? How Far Can RDI Desalination Go?

Radial deionization is a desalination technique that utilizes two oppositely charged supercapacitors to attract ions out of a water stream. Atlantis Technologies utilizes the process in its line of RDI Desalination Systems and sees the opportunity to capitalize on its innovative capabilities.

A Better Understanding Of Desalination A Better Understanding Of Desalination

As an expert on utility resiliency for a changing climate, John Batten, Global Water & Cities Director for ARCADIS, discusses the prospects of desalination for bolstering U.S. water supplies.

Radial Deionization—A 'Game Changer' For Water Recovery Radial Deionization—A 'Game Changer' For Water Recovery

Atlantis Technologies has developed a new desalination device, and it might just be a game changer.

What Is Closed Circuit Desalination? What Is Closed Circuit Desalination?

Closed circuit desalination (CCD) is the trade name for a new change in the reverse osmosis (RO) process, explains Rick Stover, Executive Vice President of Desalitech, in an interview with Water Online Radio.

The Future Of Water: Reuse, Energy-Efficient Technologies On The Horizon The Future Of Water: Reuse, Energy-Efficient Technologies On The Horizon

The U.S. should be paying attention to innovation happening in the water space worldwide, says Ryan Spanton of WesTech, in an interview with Water Online Radio.

Energy-Saving Desalination Technology Energy-Saving Desalination Technology

As water resources dwindle, more and more focus turns to desalination technologies. In this interview with Water Online Radio, Harland Pond and Thomas Morrison of Grundfos talk about the company’s commitment to innovation and their quest to solve the world’s water problems.

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DESALINATION VIDEOS

Resourcing the World Resourcing the World

The world has to rethink its relationship with resources and come up with new social and economic growth models that are more efficient, better balanced and more sustainable.
 

KSB Amarex Cooling Jacket Submersible Pump KSB Amarex Cooling Jacket Submersible Pump

KSB submersible pumps with advanced self-contained cooling jacket design can be used as dry mount or submersible pumps. Handling of all types of abrasive or aggressive waste water in water and waste water engineering as well as industry, especially untreated sewage containing long fibers and solid substances, fluids containing gas / air, as well as raw, activated and digested sludge; sea water desalination.

Custom Designed Brackish Water Reverse Osmosis Desalination Succeeds Down Under Custom Designed Brackish Water Reverse Osmosis Desalination Succeeds Down Under

Watch how this custom-designed reverse osmosis desalination system supplies potable water to a rural town in Australia.

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DESALINATION SUPPLIERS

  • Amiad Water Systems
    Amiad Water Systems

    Amiad Water Systems is a world leader in water filtration equipment and treatment solutions.

    For over 50 years Amiad has been committed to developing a comprehensive line of robust water filtration equipment and integrated treatment packages for water applications in the industrial, municipal (potable and wastewater), oil and gas, commercial HVAC, ballast water, agriculture, irrigation, and aquaculture markets. Our filters are in use in over 70 countries around the world. Every Amiad system is built for efficiency, effectiveness and reliability and is backed by our commitment to excellence and dedication to customer service.

  • Aquatech International Corporation
    Aquatech International Corporation For over 2 decades, Aquatech has provided industry worldwide with proven water and wastewater treatment systems|We strive to enable our customers to maximize efficiency by concentrating on their core businesses while we provide the leadership and expertise necessary in water treatment|Our mission is to utilize innovation and performance excellence to drive toward the ultimate goal--a lower overall life cycle cost of treatment
  • Filtronics, Inc.
    Filtronics, Inc.

    Filtronics has manufactured water and waste water treatment systems for industrial and municipal applications since 1974

  • PEPCON Systems
    PEPCON Systems PEPCON Systems (PEPCON) designs, manufactures and services equipment that utilizes a proven electrochemical process to safely and economically treat water and control odor in a variety of applications. These systems are marketed under the names ChlorMaster® and OdorMaster® and are available worldwide.
  • QUA Group LLC
    QUA Group LLC

    QUA® is a leading-edge developer and manufacturer of advanced membrane products, which includes fractional electrodeionization (FEDI) and hollow fiber ultrafiltration module (Q-SEP). These are engineered with innovative technologies, which are used to treat challenging waters. QUA is leveraging its deep roots in R&D, the expertise of staff that is highly experienced in water treatment technologies, and its significant financial resources to become a global technology leader in the development of products for water and wastewater treatment applications.

  • De Nora
    De Nora

    De Nora Water Technologies is a leading supplier of water and wastewater treatment solutions. We provide our clients with some of the industry’s brightest minds, advanced technologies, and quality products to provide you with truly efficient, cost-effective solutions to your water and wastewater challenges

  • Evoqua Water Technologies
    Evoqua Water Technologies

    Evoqua Water Technologies, formerly Siemens Water Technologies, is a leader in water and wastewater treatment products, systems and services for industrial and municipal customers. We offer a wide range of proven product brands and advanced water and wastewater treatment technologies, mobile and emergency water supply solutions and service contract options.

  • Veolia Water Technologies
    Veolia Water Technologies

    Veolia Water Technologies offers comprehensive water and wastewater solutions for industrial and municipal customers. With unique technologies and process expertise, Veolia specializes in engineering, design, and project management, construction and execution.

  • Leopold -- A Xylem Brand
    Leopold -- A Xylem Brand

    Leopold Universal Type S and SL Underdrain|Leopold IMS Cap|Leopold DAF - Dissolved Air Flotation|Leopold Clari-Trac (CT2) Submerged Sludge Collector|Leopold Clari-Vac Floating Sludge Collector|Leopold Engineered Filter Media Products|Leopold Instruments And Controls| Leopold Ultrafiltration Membrane Systems

ABOUT DESALINATION

 

Desalination is the process of removing salt and other minerals from saline water. In regions of the world where water is scarce, such as Saudi Arabia, desalination is seen as a viable alternative to more traditional potable water treatment. Desalination has also been used to produce a reliable water supply in tourist destinations such as Aruba. Desalination has also been gaining traction in areas of rapid population growth such as Singapore and Beijing.

Traditionally, desalination plants have been expensive in comparison to traditional drinking water plants due to the upfront financing costs, treated water transportation costs and ongoing energy and concentrate disposal costs. However, as technical innovation brings the energy cost of desalination down and populations continue to migrate to warm, arid climates such as Phoenix, AZ, desalination is starting to catch on as a viable alternative.

All desalination processes involve three liquid streams. The first stream is the saline feed water which is also called brackish water or seawater. The second stream is the low-salinity product or finished, treated water. The third stream is the byproduct of the desalination process, the very saline concentrate brine or reject water.

The primary desalination process being used commercially for drinking water treatment is reverse osmosis, where a semi-permeable membrane is used to separate the salt and other minerals from the pure water. A reverse osmosis desalination system consists of four major processes. During the pretreatment phase, the incoming brackish or seawater is pretreated to adjust its pH, remove suspended solids, and control scaling to avoid fouling the membranes.

During the second phase, pumps raise the pressure of the pretreated feed water to create the correct pressure differential between the pressurized feed water and the product water to move the permeate through the membrane. The pressurization phase is followed by the separation phase, creating a freshwater product stream and a concentrated brine reject stream. Two of the most popular reverse osmosis membranes used during this phase are the spiral wound and hollow fine fiber membranes.

The final phase of the desalination process is the stabilization phase that often requires a pH adjustment and degasification before being transferred into the drinking water distribution system.