| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a water cleaning device which is made compact and has simplified structure. <P>SOLUTION: The water cleaning device 2 includes a permeation unit 4 permeating liquid, and a body 6. The permeation unit 4 includes a flow passage forming body 8 which is spirally disposed while forming a spiral clearance S1, and a guide member 10 which secures the spiral clearance S1 while keeping the flow passage forming body 8 in a spiral state. The body 6 includes a flow-in port x1, a flow-out port y1 and a filtrate flow-out port z1. The flow passage forming body 8 includes a flow passage r1 being a hollow part of the flow passage forming body, a flow passage introducing port x2 communicated with the flow passage r1, a flow passage discharge port y2 communicated with the flow passage r1, and a membrane member m1 forming at least a part of a wall face of the flow passage r1. At least a part of the membrane member m1 is a permeable membrane. Raw liquid WG flowing into the flow passage r1 goes through the permeable membrane and is separated into permeated liquid WR flowing out of the filtrate flow-out port z1 and concentrated liquid WC discharged from the flow-out port y1. <P>COPYRIGHT: (C)2013,JPO&INPIT |
