PROBLEM TO BE SOLVED: To provide a method for removing slime, which is excellent in slime removing effect and is highly safe.SOLUTION: The method for removing slime includes the following two steps of treatment: the first step of allowing monochloramine-binding chlorine, which is obtained by the reaction of (A) ammonia and/or an ammonium salt with (C) hypochlorous acid, to be present in water to be treated and then the second step of allowing dichloramine-binding chlorine, which is obtained by the reaction of (B) sulfamic acid and/or a sulfamic acid salt with (C) hypochlorous acid, to be present in the water to be treated.COPYRIGHT: (C)2013,JPO&INPIT【課題】スライムの剥離効果に優れ、かつ、安全性が高いスライム剥離方法を提供すること。【解決手段】被処理水中に、(A)アンモニアおよび/またはアンモニウム塩と(C)次亜塩素酸の反応によって得られるモノクロラミン性結合塩素を存在させる第一段階の後に、(B)スルファミン酸および/またはスルファミン酸塩と(C)次亜塩素酸の反応によって得られるジクロラミン性結合塩素を存在させる第二段階を行う、二段階で処理するスライム剥離方法。【選択図】なし
