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New Findings from M.C. Cadavid-Rodriguez et al Broadens Understanding of Waste Management Research

June 6, 2014

By a News Reporter-Staff News Editor at Ecology, Environment & Conservation -- Research findings on Waste Management Research are discussed in a new report. According to news reporting from Vandoeuvre les Nancy, France, by VerticalNews journalists, research stated, "Fibrous media embody the most effective and widely used method of separating ultrafine particles from a carrier fluid. The main problem associated with them is filter clogging, which induces an increasingly marked pressure drop with time and thus imposes regular media cleaning or replacement."

The news correspondents obtained a quote from the research, "This context has prompted the idea of investigating bubble columns, which operate at constant pressure drop, as alternatives to fibrous filters. This study examines the influence of different operating conditions, such as liquid height, air flow rate, bubble size and presence of granular beds on ultrafine particle collection. Experimental results show that bubble columns are characterised by high collection efficiency, when they feature a large liquid height and small diameter bubbling orifices, while their efficiencies remain lower than those of fibrous filters."

According to the news reporters, the research concluded: "Gas velocity does not greatly influence collection efficiency, but the inclusion of a granular bed, composed of beads, increases the bubble residence time in the column, thereby increasing the column collection efficiency."

For more information on this research see: Optimization of bubble column performance for nanoparticle collection. Journal of Hazardous Materials, 2014;271():24-32. Journal of Hazardous Materials can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier -; Journal of Hazardous Materials -

Our news journalists report that additional information may be obtained by contacting M.C. Cadavid-Rodriguez, Inst Natl Rech & Secur, F-54519 Vandoeuvre Les Nancy, France. Additional authors for this research include A. Charvet, D. Bemer and D. Thomas.

Keywords for this news article include: France, Europe, Vandoeuvre les Nancy, Waste Management Research

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Source: Ecology, Environment & Conservation

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