PROBLEM TO BE SOLVED: To provide a hydroponic system of a culture fluid circulation reuse type, which is capable of promoting the growth of plants and preventing a disease without causing the problem of waste liquid treatment, etc.SOLUTION: A hydroponic system 1 includes: a cultivation tank 2 for passing a culture fluid therethrough and growing plants a filtration processing section 1 for treating the culture fluid to be treated which is discharged from the cultivation tank 2, by filtration a treated culture fluid supply line 3 for supplying the culture fluid to be treated to the filtration processing section 1 and a treated culture fluid supply line 4 for supplying the treated culture fluid having treated by filtration in the filtration processing section 1, to the cultivation tank 2.COPYRIGHT: (C)2013,JPO&INPIT【課題】廃液処理などの問題を生じずに植物の生育促進と病気予防を図ることができる、養液循環再利用型の水耕栽培システムを提供する。【解決手段】水耕栽培システム1は、養液を通水させて植物を栽培するための栽培槽2と、栽培槽2から排出された被処理養液を濾過処理する濾過処理部1と、被処理養液を濾過処理部1へと供給する被処理養液供給ライン3と、濾過処理部1において濾過処理された処理済み養液を栽培槽2へと供給する処理済み養液供給ライン4とを備える。【選択図】図1
