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An emission control device that uses microorganisms to destroy volatile organic compounds and hazardous air pollutants.



apparatus for the biological treatment of sewage. It is a round or rectangular tank with a double bottom filled with a filtering material (boiler slag, granite chips, gravel, porous clay filler, and so on). The bottoms are at least 0.4 m apart. The filtering layer is 1.5–2 m high; the grainsize of the filtering layer is 30–50 mm, and of the lower underlying layer, 60–100 mm. When sewage passes through the filtering material, a biological film forms on its surface. The film consists of accumulations of bacteria and fungi that oxidize and mineralize the organic matter in the sewage. The oxidation capacity of a biofilter is determined experimentally.

References in periodicals archive ?
Mathematical modeling of biofiltration in activated pine-bark charge of a biofilter, Environmental Science and Pollution Research 12(5): 297-301.
The biofilter West and center of the landfill should gem.
18, 2015 /PRNewswire/ - Global leader Premier Tech Aqua (PTA), the Environmental Technologies Group of Premier Tech, celebrates 20 years of innovation in water preservation and product development by expanding its leading-edge and ecological onsite wastewater treatment Ecoflo Biofilter product line, by introducing its newly NSF-certified Ecoflo Coco Filter.
Biofilter scheme: 1--aspirator; 2--VOC gas source; 3--biogenic solution tank with pump; 4--excess water reservoir; 5--biofilter housing; 6--sampling holes; 7--the liquid phase; 8--polypropylene plate; 9--gas phase; 10--irrigation nozzles; 11, 12, 13--connecting hoses; 14--polypropylene plates segment; 15--polypropylene plate
It includes a 1,750-square-foot loading building, one composting drum, a 1,400-square-foot discharge building and exterior biofilter, along with associated improvements.
TimCo has agreed to increase the height of its odour stack after testing of its new biofilter system showed less than optimum results.
Anaerobic Aerobic Fixed Film Bioreactor (A2F2B) [36], Anaerobic--Aerobic Biofilter (A2B) (Said, 2000), and Submerged Membrane Bioreactor (SMB) [46].
The smaller 30-metre diameter biofilter was packed 1.
is a manufacturer and distributor of plastic random dump tower packing biofilter bed media.
Abiomass wood fuel heating system meets all the centre's heat and power needs and a private borehole provides water, while waste is dealt with by a peat biofilter system.
NOTTINGHAM, England and LENZING, Austria, January 28 /PRNewswire/ -- Bio-Reaction Industries, an innovator in advanced biofilter systems used to treat industrial air pollution emissions from factories, has formed an alliance with Lenzing Technik GmbH (BioReaction's exclusive license partner), and is collaborating with Golder Associates, one of the world's leading ground engineering and environmental services consultancy firms.
To combat this injustice, Urban Biofilter designs, implements, and advocates for green infrastructure projects in environmentally degraded city neighborhoods.