| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a spiral type filtration module which can more surely remove a deposit on a filter membrane surface, and to provide a liquid treatment method using the spiral type filtration module. <P>SOLUTION: The spiral type filtration module 1 includes a liquid collection tube 2, and one or more units each including a first filtration membrane 3, a permeated-liquid flow-path member 4, a second filtration membrane 5, and a raw-liquid flow-path member 6, which are laminated on each other, wherein the one or more units are wound around the liquid collection tube 2 to form a spiral-type membrane element, and the spiral-type membrane element is housed in a substantially-cylindrical outer container 7. In the permeated-liquid flow-path member 4, there are formed partition members 8 for inhibiting a permeated liquid from flowing in a module axial direction. <P>COPYRIGHT: (C)2013,JPO&INPIT |
