Working With Water - Desalination

Latest News

Desalitech secures US$6.25mn equity investment
Private equity fund Liberation Capital LLC has led a US$6.25 million investment in Desalitech Ltd, the Israeli provider of advanced water treatment solutions and technology.
QUA introduces ultrafiltration membranes at Aquatech India
Membrane manufacturer QUA has introduced its FEDI fractional electrodionization and Q-SEP hollow fibre ultrafiltration modules to the Southeast Asia water treatment market at Aquatech India.
RO membrane has increased salt rejection
NanoH2O Inc has launched the Qfx SW 400 R and Qfx SW 400 SR, part of its QuantumFlux line of reverse osmosis (RO) membranes, which feature 99.85% stabilised salt rejection and NSF Standard 61 Certification, enabling operators to meet stringent water quality standards.
Argal exhibits new ranges at Achema
Argal plans to exhibit a number of its new pumps at Achema, which takes place in Frankfurt, Germany, from 18 to 22 June.
IDA launches task force to reduce energy consumption
The International Desalination Association (IDA) has formed a global energy task force whose goal is to achieve a 20% reduction in energy consumption in all major seawater desalination processes by 2015.

Research Trends

Control of acid mine drainage using flue gas desulfurisation sludge cap with coal combustion residues
The long-term physical and chemical effects of using coal-combustion residues (CCRs), in particular fixated flue gas desulfurisation (FGD) sludge, have been monitored as a major component in the reclamation of a pyritic refuse deposit. This was undertaken to determine the consequences of placing these controversial materials in an unrestricted environment.
Effects of anthropogenic inputs on organic quality of urbanised streams
Dissolved organic carbon is examined in streams with varying anthropogenic influences, using a technique to determine organic quality with and without upstream wastewater treatment plant inputs. Effluent-derived organics can persist for a long way downstream of discharge points.
Radioactive wastewater purification using titanosilicate materials
This study reviews the literature on the uptake of radiocations on titanosilicate materials, in particular the influence of physicochemical parameters on uptake. The use of titanosilicates is found to be beneficial as cleaning agents for radioactive effluents.
Replacement predictions for drinking water networks through historical data
This study uses historical data from more than 100 years to predict the future replacement needs for drinking water distribution networks. The historical data provide a reliable prediction, and the data fit well with commonly used lifetime distribution curves.
Possible impacts of floods and droughts on water quality
This paper reviews changes in water quality, with all its consequences, during selected recent extreme hydrological situations in the Czech Republic.

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

Cost effective desalination: Innovation continues to lower desalination costs
Water scarcity, climate change and increased global energy consumption are all having an impact on technology and investment trends and leading to the implementation of more desalination projects. Anthony Bennett looks at how current and future technologies and manufacturing practices are constantly lowering the cost of desalination with every new innovation made.
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.

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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