biotrickling filtration

biotrickling filtration

Bio treatment for air pollution control started decades ago using biofilters with soil beds. More recently research has focused on more sophisticated filtration equipment called biotrickling filter or trickling biofilter. Its characteristic feature is that an aqueous phase is trickled over the filter bed, which is usually made of inert synthetic material of high surface. Due to the availability of free liquid phase, the process conditions are easier to control, so high concentrations are handled more efficiently than by a biofilter.

In a biotrickling filter (BTF) the gas is carried through a packed bed, which is continuously irrigated with an aqueous solution containing essential nutrients required by the biological system.

Bioaction has reengineered the biotrickling filtration technology by designing an efficient and cost effective single pass system. This type of system has less reliance on recirculation and nutrient demand which will reduce maintenance and management.

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