Precoat filtration using a bulk handling system for diatomaceous earth has been introduced at a desalination plant in the USA as part of an improved pre-treatment process prior to reverse osmosis. 23 June 2010
A growing demand for optimal efficiency in desalination means the use of energy recovery devices has become common practice. Not only is this economical, it reduces the carbon footprint in the face of ever increasing plant size. Jeremy Martin from Energy Recovery Inc explains how these benefits are achieved. 15 June 2010
Developers were required to provide a Chilean mine with its own drinking water supply, due to the constraints of the desert area. The successful pilot of a seawater membrane system led to a permanent solution which provides drinking water for the mining camp and process water for the filter units. 15 June 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
In his series of articles, Ken Sutherland covers new developments in a number of broad classes of filtration and separation. 24 February 2010
Despite the tight credit markets and challenging global economy, 2008 saw further consolidation within the filtration and separation sector. Listed below are the mergers and acquisitions that took place during 2008. 18 December 2009
Working with Water spoke to some of the exhibitors who will be attending the US water event, about their new products and what they hope to gain from the water quality exhibition and conference. 04 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
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
The need to remove pathogens from potable water supplies is long recognised. In this article the characteristics of pathogen groups are outlined alongside an overview of the approaches used to remove or otherwise deactivate pathogens from water. The effectiveness of these approaches and any significant drawbacks are also considered. 23 March 2009
Ken Sutherland considers the various ways — such as reverse osmosis and nanofiltration — to filter fresh and waste waters, discusses the purposes for that filtration, and looks at the equipment used in the various methods. 23 March 2009
A relatively recent development in membrane processes, Ken Sutherland looks at the rapidly expanding field of nanofiltration, its characteristics and its applications. 18 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
There is increasing inter-dependency between new filtration technologies and renewable energy. In this article, Dr Mike Coffey looks at the growing use of renewable energy in systems such as wastewater treatment and biogas combustion, and integrating sustainable power into energy intensive reverse osmosis systems. 18 March 2009
A Mexican power plant was in need of a system that could effectively and efficiently treat its secondary wastewater stream. The plant turned to a manufacturer of water purification and chemical recovery equipment for a new system which could find a more economical and efficient method of tertiary treatment, primary demineralisation, and polishing. 04 March 2009
Despite extreme drought conditions and a rapidly growing population, the Western Australia city of Perth is getting water to its residents due to a groundbreaking desalination plant which uses low-pressure membranes and renewable energy to achieve its results. 03 March 2009
Ultra-violet disinfection and a rehaul of filters was key to solving the problems of a water treatment facility in Poughkeepsie, USA, that needed to upgrade its existing treatment technology to meet new US disinfection standards. 03 March 2009
The elimination of total organic solids (TOC) from feedwater is vital to ensure the long term performance of a high-pressure boiler. At a power plant in Thailand, a ‘two pronged’ application of UV technology from Hanovia reduced TOC by 68% and helped the plant on the way to meeting the country’s growing electricity demand. 03 March 2009
Seawater pre-treatment is an integral part of every seawater reverse osmosis (SWRO) desalination plant, used to remove particulates, debris, micro-organisms, suspended solids and silt from the source seawater. But with conventional and membrane filtration to choose from, which is right for you? Nicolay Voutchkov compares the two options. 09 February 2009
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