PROBLEM TO BE SOLVED: To provide a method for treating rice-washed wastewater, which can achieve the efficiency improvement and cost reduction of the disposal processing of the rice-washed wastewater while attempting the reutilization of the rice-washed wastewater.SOLUTION: The method for treating the rice-washed wastewater includes: a rice washing process for washing polished rice a concentration process for concentrating the wastewater discharged in the rice washing process to adjust a solid content to be 10-30 wt.% a disposal process for disposing a portion or all of recovered water obtained by dewatering in the concentration process and a reuse process for reusing the concentrate obtained by the concentration process as feed, food and drink, or a fertilizer.COPYRIGHT: (C)2012,JPO&INPIT【課題】洗米排水の再利用化を図ると同時に洗米排水の廃棄処理の効率化、低コスト化を実現し得る洗米排水の処理方法を提供する。【解決手段】精白米を洗米する洗米工程と、前記洗米工程で排出した洗米排水を濃縮して固形分を10~30重量%にする濃縮工程と、前記濃縮工程で脱水した回収水の一部又は全部を廃棄処理する廃棄処理工程と、前記濃縮工程で得られた濃縮液を飼料、飲食品又は肥料として再利用する再利用工程と、を有することを特徴とする洗米排水の処理方法である。【選択図】なし
