Performance evaluation method of anion exchange resin, pure water production method and water treatment system

摘要

PROBLEM TO BE SOLVED: To provide a performance evaluation method of an anion exchange resin, a pure water production method and a water treatment system capable of more appropriately performing performance evaluation and deterioration diagnosis in consideration of the reaction rate of the anion exchange resin. SOLUTION: An anion exchange resin is housed in a micro column whose water flow velocity can be controlled, a silicic acid-containing solution is passed through the micro column containing the anion exchange resin, and effluent from the micro column. This is a performance evaluation method for an anion exchange resin, which comprises measuring the silicic acid concentration and / or the silicic acid removal rate of the above, and evaluating the performance of the anion exchange resin based on the measurement result of the silicic acid concentration and / or the silicic acid removal rate. [Selection diagram] Fig. 1