Method for blending of brine and apparatus using the same

The present invention relates to a blending method can be concentrated and sea water desalination apparatus using the same, concentrated blending method according to the invention, (a) setting a quality of the mixture can be discharged blending control unit 490; (B) the sludge water is filtered each outlet in a high pressure membrane can concentrate flowing out of the filtration part and the pre-processing unit 130, the backwash drain water and the before last processing unit 110 and the A / S section 120 that exits from that step in which the number of the blended mixture discharged; (c) blending the sensor (S (D) determining whether to perform the blending process by comparing the quality of the mixing water is set to the sensing of the mixed water and the blending control unit; (E) When it is determined that performing the blending process, the blending control unit 490 are respectively flowing out of the backwash drain water and the before last processing unit 110 and the A / S section 120 that exits from the pre-processing unit 130 sludge and the high pressure membrane blending pump to be concentrated be blended flowing out of the filtration unit (P