Coway Co., Ltd

Woongjin Coway Co., Ltd

Toray Advanced Materials Korea Inc.

Doo-Won Han

Sun-Yong Lee

Sang-Hyeon Kang

Sung-Han Yun

Youn-Kook Kim

Hyoung-Jun Ahn

Jun-Young Lee

Dae-Hwan Kim

Hyun-Chul Lee

Seo-Young Kim

Hae-Sun Lee

Sung-Kon Cho

Dong-Gyu Kim

Soon-Ho Lim

Je-Kang Yoo

Jae-Hoon Moon

Hee-Kyung Lee

Jong-Kwan Kim

Kang-Jin Kim

Geun-Sang Ryu

Gi-Lyang Kim

In-Tak Lee

Eu-Jean Moon

Suk-Young Lee

Moo-Kyung Moon

A reverse osmosis filtering module includes: a purified water discharge pipe in which a purified water discharge path is formed, and which has a communication hole that is formed on an outer periphery thereof and communicates with the purified water discharge path; a reverse osmosis filtering part including a reverse osmosis filtering member in which a purified water flow space is formed, and which is wound around the purified water discharge pipe such that the purified water flow space communicates with the communication hole; a first flow channel formation cap provided at one side and having an inlet hole; and a second flow channel formation cap provided at the other side of the reverse osmosis filtering part and having an outlet hole.

Reverse osmosis filtering module and reverse osmosis filter comprising same

Disclosed is a water treatment apparatus that includes a head including an inlet portion into which water flows, an outlet portion from which water is discharged externally, and a connection portion connected to the inlet portion and the outlet portion, and a water treatment unit connected to the connection portion, including a plurality of water treatment sections, coupled to the head, and configured such that a portion of the water flowing into the inlet portion passes through the plurality of water treatment sections and sequentially, the remainder of the water passes through only a portion of the plurality of water treatment sections and, and the water flows to the outlet portion together.

Water treatment apparatus

Disclosed is a filter cartridge. The filter cartridge includes an inner filter in the form of an approximately cylindrical corrugated membrane, an outer filter in the form of an approximately cylindrical corrugated membrane, the outer filter having a diameter greater than that of the inner filter and being installed around the inner filter, and at least one holder to support the inner filter and the outer filter.

Filter cartridge

Disclosed herein is a spiral wound type filter cartridge and more specifically, a spiral wound type filter cartridge in which activated carbon fiber is provided. The inside of spiral wound type filter cartridge is capable of serving as a carbon filter in a water purifier, thus eliminating the necessity of the use of any carbon filter for pre- or post-treatment in the process of purifying raw water, reducing an overall size of the water purifier and considerably reducing costs associated therewith.

Spiral wound type filter cartridge

An amine aqueous solution for forming an active layer of a polyamide reverse osmosis composite membrane is prepared, which consists of 0.1 through 20 weight % of polyfunctional aromatic amine monomer, 0.1 through 20 weight % of multi-functional tertiary alcohol amine, 0.1 through 20 weight % of strong acid, and 40 through 99.7 weight % of water.

Polyamide reverse osmosis composite membrane and preparation method thereof

Growing community of inventors

Seoul, South Korea

Doo-Won Han