ADVANCED MEMBRANE FILTRATION DEVICE FOR COMBINING TREATED WATER BY USING A PLURALITY OF FILTERATION MEMBRANES AND THE METHOD THEREOF

摘要

PURPOSE: An advanced purified water processing device and a method therefor are provided to reduce driving costs by reducing an installation part of a nanofiltration membrane and a reverse osmosis membrane. CONSTITUTION: An advanced purified water processing device mixing processed water with a plurality of filtration membranes includes the following: an inflow water tank(110) in which raw water is stored; a first filtration membrane(120) processing and filtering raw water; a first filtering membrane processing tank(130) storing preliminarily filtered water; a second filtration membrane(140) processing and filtering first filtering processed water; a second filtration membrane processing tank(150) storing the first filtering processed water and secondary filtering processed water; an inflow adjusting module(160) controlling mixed ratio of the filtering processed water; and a controller(170) controlling the mixed ratio of the first filtering processed water and the second filtering processed water.