国家/地区 中国（4）
IPC部 B（4）
IPC大类 B01（4） C02（4）
IPC小类 B01D（4）
IPC C02F101/30（4）
发明人 ZHANG J（4）
公开年 2022（2）
申请年 2022（2） 
专利权人

Composite film useful for purifying dye wastewater comprises graphene oxide interspersed between interlaced stacked polyacrylonitrile fibers to three-dimensional network support structure.

ZHANG J, LIU L, DING H, WEI D, CHEN D, SUN Q, NIE H

Preparation of nanofiltration membrane involves coating film casting liquid containing polymer on nonwoven fabric, contacting obtained base film with e.g. aqueous phase solution containing amine monomer to form polyamide functional layer, crosslinking, imidizing, post-treating, and drying.

LIU Z, ZHANG J, HU L, LIANG S, WANG B

Treating reverse osmosis concentrated water by using electrochemical water treatment device comprises e.g. oxidizing and decomposing macromolecular organic pollutants into small molecular pollutant, accumulating treated reverse osmosis concentrate in diversion bag, and flowing out from water outlet.

WANG Y, MA Y, ZHANG J, MA Q, CHU Y

Water purifying and absorbing material prepared by grafting or copolymerizing N-vinyl amide monomers on the matrix material, hydrolyzing, and adding functional compounds having epoxy and reacting to couple them to matrix material.

CHEN X, GUI Q, HU K, OUYANG Q, ZHANG J