Archives :: Processing & Handling :: Separation (Liquid-Liquid & Gas-Liquid) :: Filtration

Displaying 81 - 92 of 92 stories.
September 15, 2008
The need to conserve water is becoming a common concern throughout the world. Whether this is due to the cost of water, availability of water, or environmental concerns, water conservation is becoming a major focal point, both in the public and private sector. In those areas where renewable water resources are limited, and in regions where there are significant environmental concerns and costs associated...
August 15, 2008
A Filter Bag for Food, Drug and Beverage Applications Introduced by the manufacturer as the first series of filter bags specifically designed for the food, beverage, and pharmaceutical industries, Cleargaf filter bags (photo) promise full compliance with U.S. and European food contact requirements and are independently certified. The filter bags meet the EU’s more stringent regulations on low...
August 15, 2008
Market demand for water purification is driving reverse osmosis forward Increasingly, water has become one of the hottest topics of the decade. Estimates indicate that water usage has increased tenfold in the last ten years. A recent United Nations report noted that one third of the world’s population lives in areas suffering from water shortages. Furthermore, industrial demands for water are...
November 15, 2007
Last month at Weftec.07, the Annual Water Environment Federation Technical Exhibition and Conference in San Diego, Nihon Genryo Co., Ltd. (Kanagawa, Japan; launched for the first time to the North American market its Saito Tank, a granular water filtration system that never requires filter media replacement. Since...
August 1, 2007
Crossflow (CF) filtration is widely used for separating substances with poor filtration properties. As the method’s name implies, a crossflow of the feed continuously flows across the filter membrane in order to wash away material accumulations that clog the membrane pores. Nevertheless, conventional methods rely on a pump to adjust the feed overflow rate, which requires substantial energy, even for...
August 1, 2007
    In the chemical process industries (CPI), pressure is constantly on to improve filtration. The filtration step has to be performed quickly (time is money), efficiently (product loss is money lost), and effectively (energy costs for pumping and drying are soaring). As a result, vendors of filtration equipment — be it for dust removal from fluegas or product recovery from a gas or liquid...
April 1, 2007
    The world's largest pharmaceutical conference and exhibition, Interphex, will be held at the Jacob Javits Convention Center in New York from April 24-26. Approximately 1,000 global companies that serve the pharmaceutical and biotechnical industries will showcase their latest lines of equipment, technologies and services in the areas of manufacturing, sourcing and services, information...
January 1, 2007
    Improvements in cartridge dirt-holding capacity has led to new designs, as well as to new equations for filter selection and specification, which are linked to dramatic improvements in the time between turnarounds and filter changeout. Cartridge filtration serves the process industries in a host of applications. Ironically, however, filtration principles are not taught adequately in many...
December 1, 2006
The mountains of used tires piling up around the world may be a source of a new filtration media that promises to be a cheaper and more efficient alternative to sand or anthracite, which are commonly used for filtering wastewater. The patented technology, developed by Yuefeng Xie, associate professor of environmental engineering at Penn State Harrisburg (Pa.;, uses crumb rubber...
September 1, 2006
Researchers at the Fraunhofer Institute for Environmental, Safety and Energy Technology (Umsicht; Oberhausen, Germany; are developing a new type of filter medium that can be manufactured with pores of precisely the same size (photo). The...
September 1, 2006
Manufacturing soda ash by either the Solvay or Hou process produces a large amount of waste sludge. About 10 m3 of waste — mostly liquid with 2–8 wt.% solids — is generated per ton of soda ash produced, says Trevor Sparks, marketing director, chemical process industries at Larox Corp. (Lappeenranta, Finland; The waste is composed of solid calcium carbonate and...
March 1, 2006
Siemens Industrial Solutions and Services Group (Erlangen, Germany; has built, commissioned and deployed the largest mobile water filtration system in the industry. The Horizontal...
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