Performance of Cross-Flow Moving Granular-Bed Filters

Abstract

Fundamental properties of cross-flow moving-bed filters were experimentally investigated.
In comparision with fixed-bed filters, collection efficiency decreased due to dust entraiment caused by the movement of filter media after reaching a critical inlet dust load.
The additional pressure loss was proportional to the 1.3th power of the retained dust loading, which was similar to the result for the fixed bed. It was, however, experimentally found that the additional pressure loss was not dependent on filtration velocity. Pressure loss buildup was predicted by assuming uniform deposition of dust around the filter media.