DESALINATION CASE STUDIES AND WHITE PAPERS

Plant Taps Pacific Ocean As Source Of Drinking Water
Plant Taps Pacific Ocean As Source Of Drinking Water

With its dedication in December 2015, the $1 billion Claude “Bud” Lewis Carlsbad Desalination Plant opened a spigot to the Pacific Ocean, creating a new, drought-proof source of drinking water for 3.1 million people in San Diego County, CA.

Reliable Production Of High Quality Permeate For Irrigation
Reliable Production Of High Quality Permeate For Irrigation

Following one of the driest periods on record in California, farmers in the San Joaquin Valley faced restricted water allocations.

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DESALINATION PRODUCTS

OPUS® II Technology - a New Innovation for High Recovery of Water for Reuse OPUS® II Technology - a New Innovation for High Recovery of Water for Reuse

OPUS® II is a proprietary process for high recovery of complex wastewater streams. This new innovation uses CeraMem® ceramic membranes as pretreatment for reverse osmosis to reduce the system footprint. OPUS II can be delivered in modular, containerized units to minimize installation costs.

Like the original OPUS technology, OPUS II effectively removes silica, organics, hardness, boron, strontium and particulates. It generates high quality effluent at a high recovery rate, providing clean water for discharge, recycle or reuse.

Advanced Dissolved Gas Control Advanced Dissolved Gas Control

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.

RWL Water Ready-To-Use-Modular Systems RWL Water Ready-To-Use-Modular Systems

RWL Water’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.

Process Instrumentation And Analytics Solutions For Water And Wastewater Process Instrumentation And Analytics Solutions For Water And Wastewater

Supplying drinking water to the population and treating wastewater are two very important global challenges. On a daily basis, system planners, designers and operators are required to keep the global increase in water consumption under control in the face of growing water shortages and the salination of fresh water resources. As industry experts for water applications, we offer powerful, innovative technical solutions to assist you.

OPUS® Technology - Optimized Pretreatment and Unique Separation Technology OPUS® Technology - Optimized Pretreatment and Unique Separation Technology
OPUS technology combines a proprietary high rate chemical softening process, MULTIFLO, with filtration, ion exchange, and reverse osmosis operated at an elevated pH in single-pass or double-pass mode to generate high effluent water quality suitable for discharge, recycle or reuse.
Pretreatment Systems Pretreatment Systems
Aquatech’s pretreatment solutions include clarification, softening, filtration (both pressure & gravity), chemical feed systems and sludge handling.
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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

RWL Water Cuts The Cost Of Water With Nirobox RWL Water Cuts The Cost Of Water With Nirobox

The Nirobox containerized system provides desalination of brackish and sea water in a small plug-and-play system that is affordable, efficient, and easy to maintain.

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.

Drought & Water Technology Drought & Water Technology

Find out how Desalitech’s ReFlex Reverse Osmosis technology is enabling cost-efficient in-land water purification. This technology is helping farms in dry and drought-stricken areas turn brackish water into a new water resource.

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DESALINATION SUPPLIERS

  • Amiad Water Systems
    Amiad Water Systems Leading supplier of automatic, self-cleaning filters, valves and accessories for municipal and industrial applications|Cost effective pre-filtration solution for membrane protection including surface water applications for RO, UV, UF and effluent water|Provide filtration degrees from 3 - 3500 microns and service any flow rate needed
  • 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 Water Technologies
    De Nora Water Technologies

    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.