Working With Water - the online magazine for the international water industry

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.
Headworks BIO partners with TAMUS on E-Beam technology
Headworks BIO Inc has signed an option agreement to negotiate an exclusive licence for The Texas A&M University System’s (TAMUS) patent pending Electron Beam (E-Beam) technology for use in municipal wastewater treatment applications.
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.
Siemens provides IPS composting system in China
Siemens’ industry automation division has been selected by Guodian Northeast Environmental Protection Industry Group Ltd to supply an IPS composting system using its new mechanically enhanced biodrying (MEB) process for the Shenyang wastewater treatment plant sludge treatment project in Shenyang, China.

Research Trends

Dam flushing strategy for diatom bloom prevention in Hanjiang River
This Chinese study looks at preventing downstream diatom blooms in the Hanjiang River using water stored in the Danjiangkou Reservoir. The flushing strategy is optimised with respect to flushing time and water quantity, to save dam water storage. The effect of this strategy is closely related to the accuracy of weather reports.
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.

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

Dam flushing strategy for diatom bloom prevention in Hanjiang River
This Chinese study looks at preventing downstream diatom blooms in the Hanjiang River using water stored in the Danjiangkou Reservoir. The flushing strategy is optimised with respect to flushing time and water quantity, to save dam water storage. The effect of this strategy is closely related to the accuracy of weather reports.
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.

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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