Abstract
In a previous paper, it was shown that electro-charged water, which was injected in parallel to the gas flow, could help point the way forward improvement in venturi scrubber performance. However, it had a wholesome on the throat gas velocity below 40m/sec. The present paper examines the effect of electro-charged water, which is injected through a glass tube placed in the center of the throat, on collection efficiency. Calcium carbonate is used for the test dust. The results are summarized as follows: (1) Collection efficiency is 95-98% for 20-30kV charged water. Throat gas velocity is as high as 45-65m/sec. Additionally, this system is applicable to the small liquid-gas ratio 0.03(l/Nm3). (2) Collection efficiency is independent of water conductivity in the range of 102-103(μmho/cm) and of water surface tension more than about 40(dyne/cm). Fortunately, ordinary water has conductivity and surface tension with in this range.
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