EVALUATION DEVICE AND EVALUATION METHOD FOR OSMOSIS MEMBRANE MODULE

摘要

PROBLEM TO BE SOLVED: To provide an evaluation device and an evaluation method for an osmosis membrane module that enable a solution of constant concentration to be supplied continuously to an osmosis membrane module in a quantitative manner and an osmosis membrane module to be evaluated simply at a low cost.SOLUTION: An evaluation device for an osmosis membrane module is a device which comprises: high-concentration side solution supply means 2 for supplying a high-concentration side solution to a high-concentration part; low-concentration side solution supply means 3 for supplying a low-concentration side solution to a low-concentration part; an electrodialyzer 4; a reverse osmosis membrane module 5; a first introduction passage 41 that introduces a discharge liquid from the high-concentration part into the electrodialyzer; a second introduction passage 51 that introduces a discharge liquid from the low-concentration part into the reverse osmosis membrane module; a first reflux passage 43 that refluxes a concentrated liquid discharged from the electrodialyzer into the high-concentration side solution supply means; a second reflux passage 53 that refluxes a permeation liquid discharged from the reverse osmosis membrane module into the low-concentration side solution supply means; a third introduction passage 44 that introduces a desalinated liquid discharged from the electrodialyzer into the reverse osmosis membrane module; and a fourth introduction passage 54 that introduces a concentrated liquid discharged from the reverse osmosis membrane module into the electrodialyzer.SELECTED DRAWING: Figure 1