METHOD AND APPARATUS FOR REUSING WASTEWATER BY USING REVERSE OSMOSIS

Title:

METHOD AND APPARATUS FOR REUSING WASTEWATER BY USING REVERSE OSMOSIS

Document Type and Number:

WIPO Patent Application WO/2020/017909

Kind Code:

A1

Abstract:

A method for reusing wastewater by using reverse osmosis, according to the present invention, provides a method for preparing pure water through a primary reverse osmosis step, a secondary reverse osmosis step, a foam generation step, and a reverse osmosis membrane washing step. The present invention prepares pure water through several reverse osmosis steps, thereby enabling prepared pure water to be immediately used as industrial water, and washes a reverse osmosis membrane with foam, thereby improving washing efficiency and saving on maintenance costs of a wastewater reuse apparatus.

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Inventors:

KANG SHIN-GYUNG (KR)
SUNG YOUL-BOONG (KR)

Application Number:

PCT/KR2019/008907

Publication Date:

January 23, 2020

Filing Date:

July 18, 2019

Export Citation:

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Assignee:

POSCO (KR)
RES INST IND SCIENCE & TECH (KR)

International Classes:

C02F1/44; B01D61/02; B01D61/06; B01D65/02

Foreign References:

KR100736428B1	2007-07-09
JP2017209654A	2017-11-30
KR100796561B1	2008-01-23
KR101299165B1	2013-08-22
KR101718100B1	2017-04-04

Attorney, Agent or Firm:

C&S PATENT AND LAW OFFICE (KR)

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