Inert filter media for the biofiltration of waste gases – characteristics and biomass control
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Inert filter media for the biofiltration of waste gases – characteristics and biomass controlDate
2002Citation
Kennes C, Veiga MC. Inert filter media for the biofiltration of waste gases - characteristics and biomass control. Reviews in Environmental Science and Biotechnology. 2002;1(3):201- 14
Abstract
Soil biofilters and related systems based onthe use of natural filter beds have been usedfor several years for solving specific airpollution problems. Over the past decade,significant improvements have been brought tothese original bioprocesses, among which thedevelopment and use of new inert packingmaterials. The present paper overviews the mostcommon inert packings used in biofiltration ofwaste gases and their major characteristics. Apotential problem recently encountered whenusing inert filter beds is the heterogenousdistribution of biomass on the packingmaterial, and the excessive growth andaccumulation of biomass when treating highorganic loads, eventually leading to cloggingof the biofilter and reduced efficiency.Several strategies that have been proposed forsolving such problems are described in thispaper. Technologies for controlling excessbiomass accumulation can be grouped into fourcategories based on the use of mechanicalforces, the use of specific chemicals, thereduction of microbial growth, and predation.
Keywords
Airpollution
Waste gases
Inert filter media
Backwashing
Packing material
Biomass control
Biotrickling filter
Clogging
Filter bed
Nutrients
Predation
Perlite
Waste gases
Inert filter media
Backwashing
Packing material
Biomass control
Biotrickling filter
Clogging
Filter bed
Nutrients
Predation
Perlite
Editor version
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The final publication is available at Springer via http://dx.doi.org/10.1023/a:1021240500817