Abstract
Sub-micron particles may not easily deposit themselves on the ground but penetrate into our respiratory tract together with contaminated gases. The performance of the electrostatic granular bed filter is investigated in order to reduce the sub-micron particle emission from a coal fired power station.The collection efficiency of the electrostatic granular bed filter increases with increase in the applied voltage and decrease of the filtration velocity. The sphere particles are more suitable than the non-sphere particles as the bed particles. Because the packing structure of the spherical particles very easily becomes uniform. The minimum fractional collection efficiency appears in the range of 0.1-1μm, but it is still higher than the efficiency attained by conventional electrostatic precipitators.
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