PROBLEM TO BE SOLVED: To provide a water treatment method and water treatment equipment, capable of obtaining an excellent result of a water flea breeding test based on a test guide line 211 of OECD.SOLUTION: A water treatment method has a constitution in which treatment water supplied from a water-supply system 2 into a chelate treatment tank 11 is allowed to pass successively a primary flocculation treatment tank 12 by a ferrous flocculant 12a and a secondary flocculation treatment tank 13 by a polymer flocculant 13a, and then discharged into a settling tank 20 through a transfer device 3. Further, in the water treatment method, a test is executed to supernatant liquor discharged from the settling tank 20.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】OECDのテストガイドライン211に基づくミジンコ繁殖試験の良好な結果を得られる水処理方法と水処理装置の提供。【解決手段】給水装置2からキレート処理槽11に供給された被処理水が鉄系凝集剤12aによる一次凝集処理槽12と高分子凝集剤13aによる二次凝集処理槽13とを順次通過した後に移送装置3を通じて沈殿槽20へと排出されるように構成し、沈殿槽20から排出される上澄液に対して試験を実施する水処理方法。【選択図】図1