Biochemical Engineering C he m C on ’ 0 4 M um ba i Biofiltration for VOC Removal : A State - of - the - art Review
نویسنده
چکیده
Biofiltration is one of the air pollution control technologies that utilizes the microorganisms to biologically degrade Volatile Organic Compounds (VOCs) and odor contained in waste air streams. The microorganism exists on the surface and in a thin water film surrounding the surface of biofilter material and degrades the pollutants present in the fluid. This method is distinguished from other biological waste treatment methods by the fact that there is a separation between the microorganisms and the treated waste. An attempt is made in identifying the limitations of the existing models on biofiltration. Also the biofilm structure is studied using NMRI technique, which opens a new area in the modeling. The mechanism of attached growth and the artificial entrapment of microorganisms to the bedding material are being studied. The various methods of artificial immobilization have a future scope in view of its several advantages, which is being studied in the paper.
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