DESALINATION CASE STUDIES
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Case Study: Chemplast Chooses Aquatech’s HERO™ & ZLD The Chemplast Mettur plant uses the Cauvery River as their main fresh water source. A strong industrial growth in recent years has resulted in water scarcity in the region. Industries are also required to follow strict environmental norms for discharging effluents. The intent of a Waste Water Treatment Plant was to have complete treatment, recycle and reuse of the combined waste water streams to reduce intake from the Cauvery River while not discharging any liquid waste streams. By Aquatech International Corporation
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Case Study: Metropolitan Council Seeks Phosphorus Treatment Options In February 2004, Siemens Water Technologies, formerly USFilter, commenced a three-month service contract with the City of Rosemount, Minnesota for treatment of phosphorus in the effluent discharge from the city’s wastewater treatment facility.
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Case Study: Membrane Filtration System Improves Water Sustainability At NEWater Plant In Changi, Singapore
Due to continuous growth in population and industry, wastewater management and reclamation is an important topic for Singapore to ensure a future sustainable water supply. Although water is precious for this city-state, so is space.
DESALINATION PRODUCTS
Desalination Technology
Aquatech can supply ANY technology that is available in the world today to tackle desalination issues
WATERTRAK™ Light Industrial Reverse Osmosis
MiniModule® Degasifier
The MiniModule was developed to process liquid flows from a few ml/min to 500 ml/min.
SMART Digital Dosing
Chemistry in water treatment, water and wastewater recycling and disinfection has experienced a huge development during the last years, and this poses a challenge for today's dosing technology.
DESALINATION APPLICATION NOTES
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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
Chemical Cost Comparison Of A Conventional Deaerator Vs A Liqui-Cel® Membrane Contactor System
Membrane Degassing And Debubbling Of High Viscous Fluids With Liqui-Cel® And SuperPhobic® Membrane Contactors
DESALINATION WHITE PAPERS
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Water Reuse Strategies: Steel Industry Case Studies
The steel industry has historically presented challenges for effective water treatment because it is a high water user and the applications may involve high heat, critical noncontact cooling, direct contact cooling, high suspended solids waters, oil and grease contamination, and complicated cascading. By Dave Christophersen, Veolia Water Solutions & Technologies
White Paper: Recycling And Reuse Of Desalinated Seawater
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.
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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Siemens Industry, Inc. - Water TechnologiesSiemens is the world leader in products, systems, and services for water and wastewater treatment for industrial, institutional, and municipal customers
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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 Siemens 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
- New Desalination Study Shows Strategies To Help Mitigate Marine Impacts
- Desalination A Must For Florida, Official Says
- California Desalination Plant Gets Push Back
- Agrilife Research Study: Salinization Of Groundwater Resources In Texas Is A Growing Concern
- GCC Industrial Water Treatment Chemicals Market Revenue To Soar
- Global Water Summit 2014: Water For Growth
- DOW Technology Helps The Largest Desalination Plant In Spain Operating With Pressurized Ultrafiltration As Pretreatment Deliver Freshwater For Municipal Use
- New SEAMAXX Reverse Osmosis Elements Provide High Efficiency, Low Energy Seawater Desalination
- DOW Helps Solve Difficult Water Challenges In Europe: TEQUATIC PLUS Fine Particle Filter
- NanoH2O To Supply Nanocomposite Reverse Osmosis Membranes For Two Desalination Plants In The Kingdom Of Saudi Arabia
- Environmentally Sustainable Water Solution For Oil And Gas Industry In Texas, New Mexico And The Dakotas
- Desalitech Named In The 2013 Global Cleantech 100
- Desalitech To Supply Advanced Wastewater Recovery System To Mid American Steel & Wire
- Black & Veatch Selected For Major Desalination Project At World’s Largest Copper Mine
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.