Title:
PRETREATMENT INTEGRATED SPIRAL-WOUND RO MEMBRANE ELEMENT AND REVERSE OSMOSIS FILTER ELEMENT COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/183628
Kind Code:
A1
Abstract:
A pretreatment integrated spiral-wound RO membrane element, comprising RO membranes (1), wherein composite layers (2) used for pretreating raw water are arranged on contact faces of the RO membranes (1) that come in contact with the raw water. The following problems in the prior art are solved: integrating pretreatment and RO membrane filtration of raw water, thereby reducing the size of a filtering apparatus; and avoiding frequent replacement caused by filter elements having different functions.
Inventors:
PARK JE SUNG (CN)
Application Number:
PCT/CN2021/101181
Publication Date:
September 09, 2022
Filing Date:
June 21, 2021
Export Citation:
Assignee:
KORTECH ENV EQUIPMENT CO LTD (CN)
International Classes:
B01D61/08; B01D61/10; C02F1/44
Foreign References:
| CN112808010A | 2021-05-18 | |||
| CN206454379U | 2017-09-01 | |||
| CN209428257U | 2019-09-24 | |||
| CN208911828U | 2019-05-31 | |||
| CN106390751A | 2017-02-15 | |||
| CN204625349U | 2015-09-09 |
Attorney, Agent or Firm:
SHANGHAI HUHUI LAW FIRM (CN)
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