公开(公告)号：US20240316500A1

公开(公告)日：2024-09-26

申请号：US18274490

申请日：2021-11-25

申请人： Yokogawa Electric Corporation

发明人： Yasuhiro MATSUI ,  Kentaro INOUE ,  Hiroyuki KATAYAMA

IPC分类号： B01D61/18 ,  B01D61/22 ,  B01D69/02 ,  G01N1/40

CPC分类号： B01D61/18 ,  B01D61/22 ,  B01D69/02 ,  G01N1/4005 ,  B01D2313/18 ,  B01D2313/243 ,  B01D2313/502 ,  B01D2313/70 ,  B01D2325/14

摘要： A concentration apparatus including a negatively charged membrane, a sample water supply, a first solenoid valve on a flow path from the sample water supply to the negatively charged membrane, an acidic solution storage tank storing an acidic solution, a second solenoid valve on a flow path from the acidic solution storage tank to the negatively charged membrane, an alkaline solution storage tank storing an alkaline solution, a third solenoid valve on a flow path from the alkaline solution storage tank to the negatively charged membrane, an outlet to discharge fluid, a fourth solenoid valve and a first suction pump each on a flow path from the negatively charged membrane to the outlet, a collection container in which fluid is collected, a fifth solenoid valve on a flow path from the negatively charged membrane to the collection container, and a controller that controls opening and closing of the solenoid valves.