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The ozone transfer from the gas-phase to the liquid phase in the down-flow tube of the reactor showed high efficiency because of its large value of gas-liquid interface area. The estimated gas-liquid interface area of the down-flow tube was approximately in the range from 60 to 600 (1/m).The ozone transfer efficiency (O.T.E.) of the down-flow tube was increased with the increase in ozone gas concentration...
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