Method of determining adsorption state of organic matter adsorbed to resin particles and method of managing water treatment system

摘要

PROBLEM TO BE SOLVED: To provide a method of determining the absorption state of organic substances absorbed by an ion exchange resin, and to provide a method of managing a water treatment system by grasping the state of contamination by traces of organic substances contained in raw water being treated using the method of determining the absorption state and managing a replacement schedule for the ion exchange resin.SOLUTION: A method of determining the absorption state of organic substances absorbed by resin particles involves; cutting a resin particle with organic substances absorbed thereby in half; measuring a plurality of points on a cut surface in a depth direction from a surface of the resin particle by means of Raman spectroscopy to acquire a Raman spectrum; and determining a depth at which an increase in background intensity of the Raman spectrum is observed as an absorption depth. The absorption depth thus determined by using this method is used to determine a replacement schedule of the ion exchange resin for water treatment system management.SELECTED DRAWING: Figure 2