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

Latest News

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.
Asia to account for 63% of ultrapure water market
Asian purchases will account for 63% of the US$4.4 billion ultrapure water products in 2012, says McIlvaine in its Ultrapure Water World Markets report.
Veolia launches energy-efficient anaerobic MBR
Veolia subsidiary Biothane has developed Memthane, a new anaerobic membrane bioreactor that delivers high-energy efficiency and quality effluents.

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

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.

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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