PROBLEM TO BE SOLVED: To provide a deodorization method which can inhibit reversion odors after deodorization treatment.SOLUTION: The method includes the following steps in order: a cleaning water deodorization step (S1) for performing deodorization of a porous malodor generating part using cleaning water with oxidant mixed a photocatalyst slurry dropping step (S2) for dropping photocatalyst slurry into the malodor generating part and light irradiation step (S3) for performing light irradiation treatment to a photocatalyst slurry dropped portion.COPYRIGHT: (C)2015,JPO&INPIT【課題】脱臭処理後の戻り臭を抑制し得る脱臭方法を提供する。【解決手段】多孔質からなる悪臭発生部に、酸化剤が混入された洗浄水を用いて脱臭を行う洗浄水脱臭工程(S1)と、光触媒スラリーを上記悪臭発生部に滴下する光触媒スラリー滴下工程(S2)と、光触媒スラリーの滴下部に光照射処理を行う光照射工程(S3)とをこの順に含む。【選択図】図1
