Lg Chem, Ltd

Taeyoung Park

Phill Lee

Taehyeong Kim

Dae Hun Kim

Kyunghoon Min

Kiho Kim

Hyelim Kang

Se Jeong Hwang

Sangbum Ahn

Hosung Kang

Kwang Hwan Kim

Huizi Shen

Gahyeon Lee

Provided is a feed spacer for reducing differential pressure of a reverse osmosis element, the feed spacer forming the reverse osmosis element, the feed spacer comprising a plurality of strands disposed in a mesh shape having predetermined intersection points, and wherein a vertical cross section of each of the strands has a rhombic shape such that a pressure loss in the feed spacer is minimized by an effective flow of raw water at an interface of a reverse osmosis membrane, and a nozzle for forming the feed spacer.

Feed spacer for reducing differential pressure of reverse osmosis element, and formation nozzle

Provided is a feed side spacer comprising a network structure, wherein the network structure includes a hexagonal eye, the hexagonal eye includes a pair of parallel portions parallel to a flow direction of a supply liquid, and an inclined portion disposed in a diagonal direction with respect to the flow direction of the supply liquid; the parallel portion has a length of 1 mm to 5 mm; the inclined portion has a length of 5.1 mm to 10 mm; and an angle formed by sides in contact with each other of the inclined portion is from 50° to 80°, and a separation membrane element comprising same.

Feed side spacer and separation membrane element

Provided is a feed spacer having a three-layered structure, and a reverse osmosis membrane filter module including the same, where the feed spacer includes a first set of a plurality of strands that are positioned in parallel; a second set of a plurality of parallel strands provided to cross the first set; and a third set of a plurality of parallel strands positioned in parallel with a raw water flow direction, where at least one of the first set and the second set consists of strands having a smaller thickness than that of the strands constituting the third set.

Feed spacer having three-layered structure and reverse osmosis membrane filter module comprising same

Provided is a hot-melt adhesive composition containing a polymer resin and a magnetic composite for a water treatment element, an adhesive film, and a water treatment element including the same.

Hot-melt adhesive composition for water treatment element, adhesive film, and water treatment element comprising same

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Daejeon, South Korea

Taeyoung Park