JPS5520609A - Deodorizing apparatus - Google Patents

Abstract

PURPOSE: The deodorizing apparatus to efficiently oxidize and decompose freely from the secondary environmental pollution due to ozone, by contacting the smelly gas with the ozone adsorbent of high concentration, and by contacting the gas with the activated coal adsorbent for removing the excess ozone and the untreated smelly constituents.

CONSTITUTION: The gas 1 including the smelly constituents is contacted countercurrently with the fluidized silica gel adsorbent 21 in the adsorption tower 2, resulting a treated gas 3 of relative humidity under 5%; this treated gas 3 is introduced into the ozone adsorption tower 4a, and is contacted with the silica gel adsorbent 4a₅ to which the high concentration ozone is previously adsorbed; hereby, the greater part of the smelly constituents undergo the heterogeneous reaction from the ozone and are oxidized, decomposed, and liquidated. Meanwhile, the high concentration ozonized air 61 is introduced into the ozone adsorption tower 4b from the ozone generator 6, and is adsorbed by the silica gel adsorbent 4b₅; when the adsorbent 4b₅ is saturated with ozone, the gas 62 including the excess ozone is discharged from the tower 4b, and is joined with the treated gas 3 forming the treated gas 7 to be introduced into the activated coal adsorption tower 8 in order to contact with the activated coal adsorbent 31; hereby, the excess ozone and residual smally constituents are high efficiently removed, resulting the odorless, innoxious treated gas 9 to be discharged. Above stated adsorption tower 4a, 4b are changed over with the condition.

COPYRIGHT: (C)1980,JPO&Japio