Working With Water - Desalination

Latest News

IDA launches desalination academy
The International Desalination Association (IDA) has created the IDA Desalination Academy, a global institute of desalination higher learning that will offer an accredited set of training events available in various global locations.
Oasys Water appoints Bob Muscat as new CEO
Former GE executive Bob Muscat has joined Oasys Water as CEO to drive the commercialization of the company’s forward osmosis technology.
Hitachi water solutions on show at World Future Energy Summit
Hitachi Plant Technologies Ltd will showcase number of advanced water environment solutions at the forthcoming World Future Energy Summit 2012 in Abu Dhabi, United Arab Emirates.
New appointments at WEF
The Water Environment Federation (WEF) has promoted Dr Eileen O'Neill to the position of deputy executive director and Matthew Ries to chief technical officer.
EIB finances seawater desalination plant in Israel
The European Investment Bank (EIB) is to provide €120 million in funding to finance the design and construction of a seawater desalination plant in Ashdod, Israel.

Research Trends

Influence of membrane orientation and organic fouling on boron and arsenic removal by forward osmosis membrane
Membrane orientation and organic fouling have been investigated in terms of their influence on the performance of forward osmosis membranes in the removal of boron and arsenic. Rejection of both was higher in FO mode compared to the pressure-driven RO mode.
Improved water quality in response to pollution control measures at Masan Bay, Korea
This study evaluates the first application of a pollutant abatement policy in a highly developed coastal area of Korea. Land–sea pollutant interactions were addressed by a six-year systematic monitoring effort, and a reduction in land-based pollutants was successfully achieved by control of point sources.
Review of treatment technologies for water reverse osmosis concentrates
This review paper looks at treatment technologies for reverse osmosis (RO) concentrates. The analysis considers volume reduction of the effluent, reducing the pollutant load, and the recovery of valuable compounds, salts and nutrients. It also considers advanced techniques aimed at zero liquid discharge.
Integrated approach to evaluate emerging contaminants in Brazilian drinking water
Estrogen and xenoestrogen levels have been chemical and biologically assessed in raw and drinking water samples from Brazilian intakes. It was found that estrogenicity is a better guiding parameter to select samples and chemical substances to be investigated. This integrated approach can guide the development of adequate treatment technologies.
Flux patterns and propensity for membrane fouling during desalination of seawater by forward osmosis
This study of seawater desalination by forward osmosis found that the dominant inorganic fouling is caused by polymerised silica scaling, in which the fouling layer comprises silica scaling surrounded by biopolymers. While the flux saw a significant decrease, it can be partially recovered by water flushing.

Webinars

What does the future hold for renewable energy in the Middle East?
We are pleased to announce a new webinar from Renewable Energy Focus in association with the World Future Energy Summit, which addresses the future for renewable energy in the Middle East.
Filtration+Separation Webinar with Elmarco Inc.
The new Filtration+Separation webinar, in association with Elmarco, is free to access. Looking at nanofibers, the webinar will look at the nanofiber formation process, the benefits of nanofibers and the most suitable markets for their use.

Podcasts

July/August issue of Filtration+Separation
Mark Holmes introduces the July/August issue of Filtration+Separation.
Podcast introducing the new issue of Desalination
Claire Young introduces the latest issue of Desalination magazine, the biannual supplement to Filtration + Separation and sister publication, World Pumps.
Ofwat's Final Determination
Claire Young presents an overview of Ofwat's Final Determination process and what it means to you, the customer.
Editorial podcast - 15th January 2010
Claire Young presents a round-up of this weeks news from Working with Water

Features

Danfoss piston pumps run for 23,000 hours with almost no wear
Residents of Elbow Cay, Bahamas rely on reverse osmosis for most fresh water, often supplied by fixed displacement axial piston pumps for new and retrofit installations. One Danfoss unit recently attained 23,000 hours of use – 15,000 more than its guarantee and is still in excellent shape. World Pumps talks to James Graham and Gary Ford.
UF pre-treatment: Membranes combat fouling risk in water
A steel producer in the United Arab Emirates planned an expansion of the existing steel plant and desalination facility. Due to the high fouling risk associated with Arabic Gulf waters, incorporating a pre-treatment technology was essential. The company chose an ultrafiltration system which combined a resilient membrane with anti-fouling properties.
Seawater desalination: US desalination industry addresses obstacles to growth
Seawater desalination faces a number of challenges in the USA. Nikolay Voutchkov of Water Globe Consulting, LLC, explains some of these and looks at ways they can be tackled.
Reverse osmosis: Salt extraction from deep well aquifers
Salt water intrusion in the local wells meant a wastewater treatment plant in the Village of Tequesta, Florida, US, required a desalination system. After soliciting bids from a variety of engineering firms, local officials chose two RO systems which subsequently required no cleaning in the eight years since installation.

Downloads

Seawater desalination: Current trends and challenges
Changing climate patterns, population growth pressures and the limited availability of new and inexpensive fresh water supplies are shifting the water industry's attention. In an emerging trend, the world is reaching to the ocean for fresh water. Nikolay Voutchkov from Water Globe Consulting explains recent trends and explains his predictions for the future market.
Back to basics with desalination
This is another in our occasional series of ‘basic' articles. Courtesy of the Waterworks museum in the UK, we present some brief insights into the background and development of desalination pumps. The article gives an overview of reverse osmosis and multi-stage flash process.
Tubular case pumps for desalination
Bryan Orchard discusses the use of tubular casing water feed pumps in KBS's Frankenthal plant, Germany.
Using alternate energy sources: Decentralised membrane systems
Oil and water shortages are turning attention towards alternative energy sources. Rajindar Singh looks at the potential of fuel cells as an energy source for filtration, especially with water production processes.
Wastewater pre-treatment: China looks to ultrafiltration
Flora Tong explains the role which ultrafiltration is playing as the city adapts to modern needs and an increased demand for water.

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