소각비산재로 제조한 광촉매 흡착제의 벤젠과 톨루엔 제거특성

초록

In order to apply the photocatalytic decomposition of aromatic VOCs, adsorbent prepared from MSWI fly ashwas coated by TiO2 -catalytic function. The effects of coating number, existence oflight source and the type of TiO2 solution used for coating were examined. Adsorbent coated with amorphous TiO2solution showed higher adsorptivity than adsorbent coated with crystal TiO2 solution. Without light source,breakthrough curve of photo-MSWI fly ash. On the other hand, breakthrough time was enlarged with light source and total removal efciency ofbenzene and toluene was also increased. It can be explained as photo-decomposition effect of TiO2 photo-catalyst.Total removal efciency of benzene and toluene was increased according to the increase of coating number with-catalytic adsorbent. But totalremoval efciency of benzene was lower than that of toluene. Because benzene was removed more effectively thantoluene by adsorption, but photo-decomposition effect of toluene was more high than benzene.

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