Researchers at Usak University in Turkey have investigated the effect of needling intensity and knitted reinforcement fabric on some mechanical properties of needle-punched nonwoven filters. Mehmet Emin Yüksekkaya reports on the findings. 21 July 2010
Dr. M. Shirato, Emeritus Professor at Nagoya University and Honorary President of the Filtration Society — Japan Association, reviews the history, current technology and future developments of automatic filter presses in Japan. 21 July 2010
The operating environment of much modern hydraulic equipment creates an increased risk of damage due to hydraulic fluid contamination. Advanced filtration technology allows this risk to be mitigated without reducing productivity. A view from Parker Hannifin's European Hydraulic Filtration and Fluid Condition Monitoring Division. 19 July 2010
Activated carbon is widely used as a sorbent media in purification and filtration methods. However, its traditional method of manufacture can be unfriendly to the environment through the release of greenhouse gases. KC Perera of Eurocarb Products describes a new project in Sri Lanka that is securing supplies of activated carbon for the future while dramatically reducing the impact of its manufacture on the environment. 09 April 2010
In the second of his series of articles on the smaller end-use equipment application sectors, Ken Sutherland reviews the equipment marketplace for the processing and production of human and animal foodstuffs, and in the production of beverages, both soft and alcoholic. 08 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
A waste management company has created a high-grade fuel oil made from waste oil, using a self-cleaning filter that reduces labour by 75%, maintenance by 50%, in 60% less production space. 03 March 2010
In his series of articles, Ken Sutherland covers new developments in a number of broad classes of filtration and separation. 24 February 2010
The installation of self-cleaning filters from Russell Finex helped clean debris from mixers before liquid fuel was pumped into tankers, resulting in increased productivity and a safer working environment for operators. The filters have also significantly improved the final quality of the liquid fuel product. 19 February 2010
When a major steel plant on the east coast of Sweden installed a new rolling mill its managers decided to recycle 100% of both the process water and the slag resulting from the cooling process. Installation of a DynaSand filtration plant helped them reach this goal. 12 February 2010
The filtration stage in the manufacture of sodium hypochlorite bleach can be severely hampered by the build-up of gas. The US chemical manufacturer Olin Corporation used specialist degassing valves to solve the problem and improve the effectiveness of the filter cartridges. 11 February 2010
Counting and classifying foreign particulate materials on filters is essential in pharmaceutical manufacturing. Traditional techniques are lengthy and difficult. Ulf Willén of Malvern Instruments describes an automated method for improved statistical sampling. 01 February 2010
A transition to integrated single-use technologies is helping to adapt to the challenges of bringing biotechnology drugs to market. Christine Valle explains the approach being taken at Millipore. 26 January 2010
Filter integrity testing is critically important in biopharmaceutical production processes. However, when large numbers of filters need to be tested daily, it can be a time-consuming and costly business. Dr. Jens Meyer of Sartorius Stedim Biotech describes how this situation can be improved by parallel testing. 19 January 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
How can disc filtration make an impact in continuous wastewater treatment? Miguel Gutierrez of Siemens Water Technologies explains the fundamentals of disc filtration and how it can provide an economical and sustainable solution for municipal tertiary treatment applications. 24 November 2009
The integration of nanofibres into production processes is increasing as more businesses strive for improved profitability and performance in end filter products. The key to their successful introduction is the identification of a suitable product and clear objectives at the outset of the product design phase. 09 October 2009
To match the series of articles appearing through 2009 in Filtration + Separation covering separation equipment, Ken Sutherland looks at recent developments in the key component of filtration equipment, namely the various types of filter media. His examination includes ceramics, nonwovens and polymeric membranes and their place in future industry. 08 October 2009
Mark Hadley, senior process engineer at Severn Trent Services, looks at how rapid gravity filters have developed to meet the demands for efficient solids removal at the pre-treatment stage of desalination plants. 25 September 2009
This article, by John Wertz and Immo Schneiders of Hollingsworth & Vose, looks at the advantages of a new and advanced nanofibre coating technology for filtration media compared to the electrospinning process, and introduces a next-generation nanofibre technology specifically designed to enhance filtration media. 07 September 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
Ned Galka and Abhishek Saxena of Lydall Filtration examine the growing impact of membranes in the high efficiency air filtration sector – and see what future developments may be in store. 30 July 2009
ACHEMA is the world forum for the process industries. The city of Frankfurt hosts ACHEMA – the largest international meeting for the process industries, encompassing everything from oil and gas processing, through power generation, base chemicals and pharmaceuticals, to biotechnology. 08 April 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
Can old tyres be an effective filter medium? Yue-Feng Xie, Bryon A. Killian and Andrew S. Gaul look at using crumb rubber from waste tyres when filtering wastewater. 23 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
A team from the Belgian company Bekaert explain the development of an enhanced surface filter medium based on short metal fibres, specifically designed for applications in the food and beverage and chemical and pharmaceutical industries. 18 March 2009
The production processes for beverages demand that the final result is a drink that meets the expectations of customers, both visually and gastronomically. Ulrich Braeutigam of Sartorius explains how the last step in this process could be the most important, and how a new product could help. 18 March 2009
Lon Edelman of Kimberley-Clark believes that filter media is no longer just a commodity, and that its true value can be determined by life cycle costing. This article looks at the evolution of filter media in the air sector, with a particular focus on North America. 18 March 2009
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