What Is Biofiltration?
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Definition:
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Biofiltration is an air pollution control technology which utilizes microorganisms to biologically degrade odors and other volatile air pollutants contained in waste air streams.
The microorganisms exist on the surface, and in a thin water film surrounding the surface, of the biofilter material. During the biofiltration process, the contaminated air is slowly pumped through the biofilter material. The pollutants are adsorbed onto the filter material´s surface, and absorbed into the water film. Simultaneously, the microorganisms biologically consume i.e. metabolize the pollutants, producing energy, biomass, and metabolic end products, mainly CO2 and H2O.
The biofiltration process results in a complete decomposition of the pollutants, creating no hazardous byproducts.
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