PROBLEM TO BE SOLVED: To provide a method for treating white turbidity of treated water and an apparatus therefor, capable of purifying the treated water more efficiently, while suppressing generation of white turbidity and maintaining stable transparency of treated water.SOLUTION: There is provided a method for treating white turbidity of treated water, for circulating treated water extracted from a water tank 1 to the water tank 1 after being purified, the method including: detecting a concentration of fine particles of purified water obtained in a purification process； determining whether white turbidity can occur in the tank 1 based on a relationship between the detected concentration of the fine particles of the purified water and a maximum length of the water tank 1； making the purified water subjected to membrane filtration to remove the fine particles in the purified water when it is determined that white turbidity can occur in the water tank 1； and reducing a flow rate of the purified water for membrane filtration or making supply of the purified water stop to the membrane filtration process, when it is not determined that white turbidity can occur in the water tank 1.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】白濁の発生を抑制して被処理水の透明度を安定的に維持しながら、被処理水をより効率的に浄化処理することが可能な被処理水の白濁浄化処理方法及びその装置を提供する。【解決手段】水槽１から抜き出した被処理水を浄化処理した後に水槽１へと循環させる被処理水の白濁浄化処理方法であって、浄化処理で得られる浄化水の微粒子の濃度を検出し、検出された浄化水の微粒子の濃度と水槽１の最大長の関係に基づいて、水槽１に白濁が生じ得るか否かを判定し、水槽１に白濁が生じ得ると判定される場合には、浄化水を膜ろ過処理して浄化水中の微粒子を除去し、水槽１に白濁が生じ得ると判定されない場合には、膜ろ過処理する浄化水の流量を減少させるか浄化水の膜ろ過処理への供給を停止することを特徴とする被処理水の白濁浄化処理方法である。【選択図】図１
