国家/地区 中国（6） 韩国（3） 美国（3） 世界知识产权组织（2）
IPC部 B（8） C（4）
IPC大类 B01（8） C02（4）
IPC小类 B01D（8）
IPC B01D061/02（8）
发明人 CHA M（2） KIM S（2） KIM S Y（2）
PARK C（2） PARK C H（2）
公开年 2022（8）
申请年 2021（8）
专利权人 UNIV EWHA IN.（2）

Ceramic nanofiltration membrane comprises graphene oxide and polyethyleneimine are alternately coated on surface of ceramic nanofiltration membrane, where graphene oxide and polyethyleneimine allow carboxyl group and amine group to form covalent bond.

KOOK H, CHA M, KIM S, LEE M, PARK C, PARK C H, LEEMINJOO, KIM S Y

Mop cleaning bucket for rinsing and de-drying clean water by circulating and filtering sewage, has water column for drawing water from water purification area to clean mop cloth to form sewage that flows to water outlet through inclined surface.

WU C

Semiconductor process wastewater treatment system used for removing ionic substances, has processing unit configured to receive semiconductor process wastewater and treat the semiconductor process wastewater through many operation and membrane filtration tank arranged separately from processing unit.

CHA M, KIM S, PARK C, AHN S, SEHYUK A, PARK C H, KIM S Y

Preparation of graphene oxide modified composite nano-filtration membrane used for treating heavy metal waste water, involves mixing graphene oxide dispersion liquid and nano-particle dispersion liquid, ultrasonically reacting, immersing membrane in dopamine solution, cleaning and drying.

WANG S, GUO X, LIU J, WANG J, ZHAO Y, JI Z, YUAN J, FEI L, ZHOU J, LI F

Preparing multilayer polyamide film composite reverse osmosis membrane, comprises e.g. preparing polysulfone-based membrane, preparing chitosan complexed silver antibacterial agent, and immersing film containing top polyamide layer in protective layer modification solution.

ZHONG C, SUN F, ZHU Y

Organic solvent nanofiltration membrane and/or organic solvent reverse osmosis membrane for nanofiltration of solvent, comprises composite mixed matrix material comprising solvent-resistant polymeric matrix with functional groups suitable for crosslinking, and inorganic material.

GAO Z, CHUNG T, NADERI A, WEI W, PAN G Z, TAIWIN C, WEIWAN, ZHONG T

Reverse osmosis membrane with good anti-oxidation effect comprises winding frame, where left side fixedly connected with outer surface of winding frame is limiting plate, right side of outer surface and right winding of limiting plate.

HU K

Reverse osmosis membrane based on polysulfone material, comprises support frame that is polyester knitted fabric after stiffening, and dense layer that is polyamide layer doped with graphene oxide.

WANG Z, LI Z, PAN P