- 9 May 2007 -
Air contamination: Is oil really the problem?
Much is made of oil contamination in any compressed air system. But, in real terms, oil is the least of the problems, says John Davis of domnick hunter. They believe oil can be dealt with easily through the application of high efficiency coalescing and oil vapour/odour removal filters.

- 13 December 2006 -
Tilting pan filters – the industrial work-horses of filtration
The tilting pan filter in phosphoric acid plants is employed to filter the digested phosphoric acid/gypsum slurry and recover the acid content. Dr MP Sukumaran Nair explains how the process works. more

- 23 November 2006 -
Raising the standard of industrial wastewater
Upgrading a plant to meet new discharge standards while working in limited site space presents a unique challenge. A carbon treatment system combined with wet air regeneration proved to be an effective solution, say John Meidl and CC Lu from Siemens Water Technologies. more

- 2 November 2006 -
Can ceramic ports help centrifuges last longer?
Neil Lacey, service manager for Centriquip, the UK's largest decanter manufacturer, looks at how choosing the correct port liner for centrifuges can make all the difference in reducing wear, downtime and maintenance costs. more

- 20 September 2006 -
Aquatech - innovation awards
www.filtsep.com takes a look at a few of the products that have been entered for an innovation award as part of the Aquatech show, taking place in Amsterdam later this month. more