DESALINATION CASE STUDIES
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Saudi Arabian Airport Successfully Uses Aquatech’s Seawater Reverse Osmosis System India’s first Ultra Mega Power Project (UMPP) at Mundra in Coastal Gujarat, a 4,000 MW coal fired plant, is owned by Coastal Gujarat Power Limited (CGPL), a Tata Power group company.
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Biothane Delivers Anaerobic Wastewater Treatment To Veryfine Products Biothane’s turnkey project was designed to treat wastewater by providing a series of treatment processes. Pre-treatment consists of a bar screen, influent sump, grit removal and rotary screen to remove debris from the influent stream. By Veolia Water Solutions & Technologies
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Siemens Provides Activated Carbon For Treatment Of Contaminated Wells In Drought-Ridden State In April 2009, a major water utility in the western US awarded Siemens the contract to provide a groundwater treatment solution for two contaminated wells which needed to be returned to service and to provide compliant drinking water in the region.
DESALINATION PRODUCTS
EM-Pure™ Membrane Systems
As a preferred GE partner, we offer the full line of GE Membrane Systems, products and services which include complete systems, membrane elements, controls, filters, high-pressure pumps and maintenance plans. The GE brand is synonymous with quality, engineering and craftsmanship! With Filtronics, you will get quick delivery, fast installation, responsiveness to your concerns, ease of use and extreme reliability.
Mobile Reverse Osmosis (RO)
The Mobile Reverse Osmosis unit from Evoqua Water Technologies is a self-contained system that employs pretreatment and reverse osmosis (RO) capability in a single trailer. The system is capable of producing 200 gpm of low conductivity product water under a variety of raw water conditions.
WATERTRAK™ Light Industrial Reverse Osmosis
Wastewater Recycle/Water Reuse
Aquatech provides wastewater recycle/water reuse systems that incorporate their experience with many technologies associated with wastewater treatment associated with industrial applications.
DESALINATION APPLICATION NOTES
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Application Note: Desalination Plants: YSI Instruments Monitor Flow & Water Quality At Multiple Stages Desalination is the process of removing salt from sea water or brackish river or groundwater to make potable water. By YSI
Chinese Chemical Plant Optimizes Water Treatment By Replacing Double Pass RO With A Single Pass RO And Liqui-Cel® Contactor System
Desalination Plants: YSI Instruments Monitor Flow & Water Quality At Multiple Stages
DESALINATION WHITE PAPERS
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Advanced Membrane Filtration For Water Reuse ApplicationsWith a greater number of regions suffering severe or prolonged drought conditions, water reuse is globally on the rise, and in fact is a key part of many municipal and industrial water resource management plans.
White Paper: High-Efficiency Reverse Osmosis Treats Gray Water For Power Generation
Recycling of gray wastewater as boiler make- up water was the challenge where silica value was typically 85 ppm in this secondary treated wastewater. This paper describes a new design called the High-Efficiency Reverse Osmosis selected for that task, discusses the project technical considerations and highlights the actual performance of the system.
Understanding Differences Of Boiler Feedwater Pretreatment Equipment
As a water treatment professional, there are several reasons for understanding the various types of boiler pretreatment equipment. By Dave Christophersen,Veolia Water Solutions & Technologies
DESALINATION SUPPLIERS
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Amiad Water Systems Amiad Water Systems has more than 40 years experience as an industry-leading supplier of automatic self-cleaning filters, valves and accessories. -
Aquatech International Corporation Established in 1981, Aquatech International Corporation is a global leader in water purification technology for industrial and infrastructure markets with a focus on desalination, water reuse, and zero liquid discharge. -
Filtronics, Inc. Filtronics has manufactured water and waste water treatment systems for industrial and municipal applications since 1974 -
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 GroupQUA® headquartered in USA, is a developer and manufacturer of leading-edge advanced membrane products used in the water, wastewater, and water reuse markets. Sold exclusively through a global network of qualified OEM's, QUA's product offering includes their innovative Fractional Electrodeionization (FEDI®) stack, which has superior hardness tolerance compared to the other electro-deionization products on the market and their NSF Certified Q-SEP® Ultrafiltration (UF) membranes.
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Severn Trent ServicesSevern Trent Services 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
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Evoqua Water TechnologiesEvoqua 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.
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Veolia Water Solutions & TechnologiesVeolia Water Solutions & 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.
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Leopold -- A Xylem BrandLeopold - A Xylem Brand has long been a worldwide leader a in the water and wastewater treatment industry supplying both filtration and clarification systems. Since its establishment in 1924, Leopold has pioneered and acquired a number of innovative technologies aimed at improving the quality of water while reducing costs.
DESALINATION VIDEOS
Mobile Combination Reverse Osmosis Treatment Service
Generally used for short-term or emergency water needs, mobile water treatment services from Evoqua Water Technologies provide a convenient source of water to match customer site and raw water conditions.
Video: MEMCOR Submerged Membrane System Starts Up At Orange County Water District
DESALINATION NEWS
- IDE Technologies Recognized With Two Global Water Awards
- Is China Overlooking Desalination, Recycled Water?
- Desalination, Treated Wastewater: Best Options For Florida's Space Coast?
- Desalination: A Major Success For Israel?
- Could Solar Desalination Solve The California Drought?
- Water & Energy: Combine Them Both…And It Will Push Growth
- Desalitech Partners With Veolia Water Solutions & Technologies To Bring Advanced Water Solutions To Mexico
- Gary Cappeline Named Evoqua Water Technologies Interim CEO; Mark Roos Interim CFO
- Sustainable Desalination Plant First Of Its Kind
- IDE’s Horizontal Mechanical Vapor Compression (MVC) Evaporators Chosen To Expand SAGD Site In Canada
- How To Create Selective Holes In Graphene
- Xylem Names Patrick K. Decker President And Chief Executive Officer
- IDE Technologies Shortlisted For Two Global Water Awards – Desalination Company Of The Year And Desalination Plant Of The Year
- Electrodialysis: The Future Of Desalination?
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.