| 摘要 |
<p>PURPOSE:To prolong the life of a catalyst in an ozone-catalyst method and to enhance the removing effect of a malodorous component, by preliminarily removing hydrocarbons and NH3 by an activated carbon filter and a solid acid adsorbent packing tower. CONSTITUTION:A malodorous gas G is passed through an activated carbon filter 1 for removing hydrocarbons, to remove hydrocarbons and dust. In the next step, O3 is injected from an ozone generator 2 and sent to a packing tower 4 contg. a solid acid adsorpent while gas phase reaction with a malodorous components highly reactive with O3 such as H2S is promoted. The packing tower 4 is packed with an adsorbent prepared by impregnating a porous carrier such as zeolite with an inorg. acid such as phosphoric acid to adrorb and remove NH3 amoung the malodorous components. In addition, moisture from a humidity conditioner and O3 are mixed and a gaseous phase reaction of the malodorous components with O3 is promoted in a gas mixing tank 6, thus the reaction is completed in a catalytic reactor 7 and, at the same time, excessive O3 is subjected to self- decomposition.</p> |
