Water quality evaluation method, quantification method and water treatment method of water to be treated

摘要

A water quality evaluation method for evaluating the degree of contamination of water to be treated supplied to a membrane separation apparatus having a separation membrane, wherein the degree of contamination is caused by an organic compound contained in the water to be treated. And passing the treated water through the microfiltration membrane and capturing at least a part of the organic compound with the microfiltration membrane, and passing the microfiltration membrane after the treated water is passed through the red Analyzing by external spectroscopy to obtain an infrared absorption spectrum, and evaluating the degree of contamination based on an analysis step and a height or area of at least one peak of the infrared absorption spectrum obtained in the analysis step A water quality evaluation method comprising: an evaluation step.