DESALINATION CASE STUDIES
-
New Media Reduces Cadmium From Electroplating Wastewater Discharge
Cadmium has many industrial uses and is predominantly used in rechargeable batteries, in yellow and red pigments and is widely used in the aircraft industry electroplating applications due to the excellent resistance to corrosion for cadmium plated steel components.
-
Case Study: Reverse Osmosis System Helps A Small Community Meet Potable Water Needs The Village of Bald Head Island is a picturesque community off the mouth of the Cape Fear River in coastal North Carolina with no cars and access only by ferry from the mainland. -
Case Study: California's Magnolia Power Project Utilizes HERO/Crystallizer Process For ZLD System
The Magnolia Power Project is utilizing state-of-the-art combined-cycle electric generation technology and being built on four acres of Burbank Water and Power’s (BWP) generation station complex adjacent to Magnolia Boulevard in Burbank. The 310-megawatt (MW) power plant will serve as locally operated generation for the cities of Burbank, Anaheim, Glendale, Pasadena, Cerritos and Colton.
DESALINATION PRODUCTS
Aquamove Mobile Water Treatment Solutions
Veolia Water Solutions & Technologies offers Aquamove™ mobile water treatment services and capabilities. Aquamove can be used for water utilities requiring temporary or supplemental treatment equipment and industries using purified water for their production lines or utilities.
ACTIFLO®
Actiflo™ is a compact process that operates with microsand (Actisand™) as a seed for floc formation. Actisand™ provides surface area that enhances flocculation and also acts as a ballast or weight to aid a rapid settlement
Reverse Osmosis (RO) Systems
Evoqua Water Technologies is a leader in Reverse Osmosis Systems (RO Systems). We have over 50 standard designs and maintain a fleet of mobile reverse osmosis units.
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.
DESALINATION APPLICATION NOTES
-
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
Membrane Degassing And Debubbling Of High Viscous Fluids With Liqui-Cel® And SuperPhobic® Membrane Contactors
Chinese Chemical Plant Optimizes Water Treatment By Replacing Double Pass RO With A Single Pass RO And Liqui-Cel® Contactor System
DESALINATION WHITE PAPERS
-
White Paper: 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: The Leopold® Clari-DAF™ System For Membrane Pretreatment
White Paper: Recycling And Reuse Of Desalinated Seawater
DESALINATION SUPPLIERS
-
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.
-
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
-
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.
-
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.
-
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
- Sustainable Desalination Plant First Of Its Kind
- How To Create Selective Holes In Grapheme
- 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?
- Aquiva Foundation And STELCO Team To Provide Drinking Water From Waste Heat In The Maldives
- IDE Technologies Expands Its Latin American Footprint With New Office In Chile
- Texas Lawmakers Dig Into Desalination
- Spectra Watermakers Relieve Drought-Stricken Marshall Islands
- Israeli-Jordanian Peace Agreement May Include Sharing Water Resources
- Faced With Water Scarcity, China Looks To Sea Ice Desalination
- UK Social Enterprise To Unveil The Latest Game Changers In Solar Desalination
- Largest Desalination Plant In Western Hemisphere Completes First Year Of Construction
- Desalitech To Supply Advanced Wastewater Treatment Solution To UPLEEL Of India
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.