Characterization and Efficiency Evaluation of Regenerated Filter Media

Priscila Martins de Barros; Eduardo Hiromitsu Tanabe; Mônica Lopes Aguiar

doi:10.4028/www.scientific.net/MSF.727-728.1643

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HomeMaterials Science ForumMaterials Science Forum Vols. 727-728Characterization and Efficiency Evaluation of...

Characterization and Efficiency Evaluation of Regenerated Filter Media

Abstract:

This study aimed to evaluate the characteristics of virgin and regenerated filter media and their relation with filtration efficiencies for particles with aerodynamic diameter up to 20 µm. The permeability of the filter media was determined and their fibers were observed in a scanning electron microscope. Filtration efficiency was obtained from the dust cake formed. The particulate matter used was phosphate concentrate and the filter media were cellulose fiber filters. The results showed that regenerated filter media presented higher air permeability due to the opening of the fibers observed in the microphotographs obtained; lower removal efficiencies were observed for particles smaller than 2.5 µm; and for particles larger than 2.5 µm, the efficiencies were nearly the same as those of the virgin filter, which was approximately 100%. It was verified that the regenerated filter media lost their initial characteristics, but continued to be efficient for particles larger than 2.5 µm.

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Periodical:

Materials Science Forum (Volumes 727-728)

Pages:

1643-1647

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.727-728.1643

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Online since:

August 2012

Authors:

Priscila Martins de Barros, Eduardo Hiromitsu Tanabe, Mônica Lopes Aguiar

Keywords:

Filtration, Filtration Efficiency, Regenerated Filter Media

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