| 摘要 |
PROBLEM TO BE SOLVED: To provide a membrane filtration device in which a tank for a liquid to be filtered has simple structure and is easily modified and moreover taking out and putting in of an immersed membrane module can be easily and accurately performed.SOLUTION: There is provided a membrane filtration device 10 which comprises: a tank 3 for a liquid to be filtered in which a liquid to be filtered is stored; and a membrane module 11 immersed in the liquid to be filtered. The membrane module 11 comprises: a separation membrane element 12 for filtering the liquid to be filtered; and a separation membrane holder 2 for holding the separation membrane element 12. The separation membrane holder 2 comprises: a rod-shaped guide member 1 which is continuous or intermittent in the vertical direction on the side part; and a hanger 5 for hanging the separation membrane holder 2. The tank 3 for a liquid to be filtered comprises a guide unit 4 so as to face the guide bar 1. Since the opposing end parts of the guide bar 1 and the guide unit 4 are engaged with each other in a nested manner and the guide bar 1 slides along the guide unit 4, the separation membrane holder 2 can be moved in the vertical direction. |
