In the pharmaceutical industry it is essential to eliminate pyrogens from the manufacturing process, and in particular from the water production plants they require. Claudio Maini and Luca Zonarelli of Veolia Water Solutions & Technologies explain the background and the development of new systems to minimise the risks. 11 August 2010
Biofouling is a major and very expensive problem for the water industry. Biofilm resulting from the growth of microorganisms on reverse osmosis and ultrafiltration membranes is a serious issue in desalination and water treatment plants, requiring a variety of pretreatment strategies to minimise the problem. Tom Berman of the Kinneret Limnological Laboratory describes the latest thinking on the subject. 07 April 2010
A novel biocidal method for disinfecting drinking water has been developed by HaloSource Incorporated. Jeff Williams and Michael Bridges describe the development, effectiveness and applications for HaloPure Br. 07 April 2010
An IChemE-award winning ion exchange system which removes nitrate from groundwater with minimum use for chemicals, reduced power consumption and waste volumes has been installed by ACWA Services at a number of UK water treatment works. 12 February 2010
When a Swedish wastewater treatment plant invested in new decanter centrifuges, Emotron variable speed drives were chosen. This was one of the first times that manufacturer Noxon had used Emotron VFX in its solution, with the energy generated by the braking motor being re-used by the driving motor. 05 February 2010
Fast and accurate analysis of environmental samples is a must in order to restrict pollution. In this technical article, a team from Thermo Fisher examine a solution for sample analysis that aims to give fast and accurate multi-elemental analysis of samples. 11 November 2009
Improvements in RO membrane elements have provided a threefold increase in the amount of treated water per element while reducing energy costs in desalination and water purification projects around the world. Currently, desalination plants with Dow Water & Process Solutions technology enable more than 218 million gallons of freshwater to be produced every day. 08 October 2009
This article, from a team at Agrilectric, looks at the filtration properties of rice hull ash, including several examples of its successful use as a filter medium with water and wastewater. 21 August 2009
In the quest for efficient and economical water use and land footprint in water production, membrane bioreactors (MBR) have been leading the way. In this article, we look at how the membranes in an MBR work, and some recent developments in this sector of the water industry. 27 March 2009
The subject of butterfly valve technology and its suitability for desalination plants raises a number of issues in respect of providing adequate protection against corrosion. Bryan Orchard visited the KSB Amri Water Valve Division Competence Centre in France to learn more about their technologies. 27 March 2009
There is an increasing requirement for sustainable treatment options to deal with the various types of emissions to the environment, including the bad smells occasionally generated by wastewater treatment processes. This article takes a look at a technology that can reduce and eradicate odour emissions. 27 March 2009
Membrane Bioreactors (MBR) with submerged membrane modules are being adopted in many areas of the globe as the next generation of biological water treatment technology. We take a look at some of KMS’s recent projects. 26 March 2009
The town of Gillingham, England has responded to growing population and increased treatment standards by installing four of Nordic Water’s Dynasand moving sand bed filters. The installation in its present configuration is designed to meet anticipated needs till 2013 – but with additional media and designed capacity for a potential fifth unit, it is expected to meet Gillingham’s needs until the year 2020. 26 March 2009
In 2007, three companies collaboratated on a new water treatment plant for Bartlesville City, Oklahoma, USA. However, unexpected environmental influences and operational malfunctions caused problems for the project, testing the people of Bartlesville’s patience and their commitment to the water treatment plant. 26 March 2009
Water pollution – especially as a result of oil production and storage – is an unfortunate fact of life. Finding a solution is not as obvious, especially if it has to fit around an existing infrastructure. We take a look at a development by BPC, which looks at bioremediation as a solution. 26 March 2009
Working with Water spoke with Ian Barbour, General Manager of Dow Water Solutions, about the important issues of water provision and quality in the world today – from the cost of providing clean water in India, to desalination in Australia. 25 March 2009
The Harnaschpolder wastewater treatment plant, based in the Netherlands and run by Veolia, is a great example of a modern filtration system with a look to the future. Filtration+Separation visited the plant to find out how it operates. 18 March 2009
Reducing the environmental impact of water management and infrastructure projects is becoming an essential part of the business. In this article, Dr Mike Coffey looks at the role environmental monitoring can play and how to design an effective program. 04 March 2009
Swimmers were put off by an excess of blue green algae at a popular lake in Germany. Application of a phosphate binder produced a remarkable reduction in phosporus, decreasing the presence of algae and making the lake habitable again for humans and animals alike. 04 March 2009
The Australian town of Goulburn’s timely water initiative presents a model for the future as cities learn to live with drought and other water challenges. Was an ultraviolet disinfection scheme for irrigation part of the answer? 04 March 2009
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