FILTRATION SYSTEM AND FILTRATION METHOD
To provide a filtration system for proper protection of a separation membrane in the operation of changing a flow direction of raw water to the opposite direction.SOLUTION: The filtration system (200) is assembled with a container (1), a separation membrane element (10), a first supply port (31), an...
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Main Authors | , |
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Format | Patent |
Language | English Japanese |
Published |
28.05.2020
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Subjects | |
Online Access | Get full text |
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Summary: | To provide a filtration system for proper protection of a separation membrane in the operation of changing a flow direction of raw water to the opposite direction.SOLUTION: The filtration system (200) is assembled with a container (1), a separation membrane element (10), a first supply port (31), and a second supply port (32). The separation membrane element (10) is arranged inside the container (1). The filtration system (200) is configured so as to be able to switch between a first mode and a second mode. The separation membrane element (10) is assembled with a water collection pipe (11), a separation membrane (12), and a channel material (13). The separation membrane (12) is wound on the water collection pipe (11). The channel material (13) is wound on the water collection pipe (11) together with the separation membrane (12) and forms a channel for raw water. The separation membrane (12) has a polymer coating on a surface to be in contact with the channel material (13).SELECTED DRAWING: Figure 2
【課題】原水の流れ方向を逆向きに変更する運転を行うときに分離膜を適切に保護するろ過システムを提供する。【解決手段】ろ過システム(200)は、容器(1)と、分離膜エレメント(10)と、第一供給口(31)と、第二供給口(32)とを備える。分離膜エレメント(10)は、容器(1)の内部に配置されている。ろ過システム(200)は、第一モードと第二モードとを切り換え可能に構成されている。分離膜エレメント(10)は、集水管(11)と、分離膜(12)と、流路材(13)とを備えている。分離膜(12)は、集水管(11)に巻きつけられている。流路材(13)は、分離膜(12)とともに集水管(11)に巻きつけられ原水の流路を形成する。分離膜(12)は、流路材(13)に接する表面にポリマーコーティングを有する。【選択図】図2 |
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Bibliography: | Application Number: JP20180212540 |