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1. (WO2018199093) REVERSE OSMOSIS MEMBRANE PLANT AND METHOD FOR OPERATING REVERSE OSMOSIS MEMBRANE PLANT

Pub. No.:    WO/2018/199093    International Application No.:    PCT/JP2018/016614
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Wed Apr 25 01:59:59 CEST 2018
IPC: B01D 61/10
B01D 61/12
B01D 65/10
Applicants: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.
三菱重工エンジニアリング株式会社
Inventors: ITO, Yoshiaki
伊藤 嘉晃
TAKEUCHI, Kazuhisa
竹内 和久
SUZUKI, Hideo
鈴木 英夫
KONDO, Gaku
近藤 岳
TAJIMA, Miyoko
田島 みよ子
Title: REVERSE OSMOSIS MEMBRANE PLANT AND METHOD FOR OPERATING REVERSE OSMOSIS MEMBRANE PLANT
Abstract:
The present invention is equipped with: a reverse osmosis membrane device 15 to which is connected an inflow water line L1 into which inflow water 11 flows, the reverse osmosis membrane device 15 having a reverse osmosis membrane 14 for obtaining permeated water 12 in which saline matter has been removed from the inflow water 11, and concentrated water 13 in which the saline matter in the inflow water 11 is concentrated; a branching line L11 that is branched from the inflow water line L1 and branches some of the inflow water 11 as inspection water 21; an inspection container 22 to which the branching line L11 is connected, the inspection water 21 being passed through the interior of the inspection container 22; an inspection carrier 23 of which at least one is accommodated inside the inspection container 22 and to which a biofilm derived from the inspection water 21 adheres, the inspection carrier 23 comprising a material having greater adhesion with the biofilm than does the material constituting the reverse osmosis membrane 14; and a biofilm inspection device that stops the flow of inspection water 21 to the inspection container 22 and inspects the adhesion amount of the biofilm that has adhered to the inspection carrier 23.