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VOC TRICKLING
BIOFILTERS
In AirScience's Trickling Biofilters water containing nutrients and neutralizing components is fed in a continuous manner to the top of a bed made of structured packing, covered by an activated biofilm. The polluted air to be treated circulates through the packing in a co-current or counter-current fashion. Residence times are generally shorter than for biofilter for comparable performance.
Trickling Biofilters can treat higher total loads of pollutant than biofilters. They have the potential to treat chlorinated compounds such as dichloromethane, as well as sulfur compounds such as carbon and hydrogen sulfide. Trickling Biofilters are best for the treatment of compounds forming acid metabolites
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