TRACE ELEMENT REMOVING METHOD OF AGRICULTURAL WATER AND AGRICULTURAL WATER TREATMENT APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a trace element removing method for agricultural water capable of certainly removing a minor element such as iron or the like contained in agricultural water by a simple means and an agricultrual water treatment apparatus. SOLUTION: Oxygen is dissolved in raw water to oxidize a trace element such as iron or the like contained in raw water and the raw water is allowed to stand in a sedimentation tank to sediment oxide before supernatant water is taken out.