▎ 摘　　要

NOVELTY - Composite nanofiltration membrane comprises a graphene oxide/phenolic resin nanofiltration membrane on the surface of a base film. The preparation of graphene oxide/phenolic resin composite nanofiltration membrane comprises coating the mixed solution containing graphene oxide materials, polyphenol monomers and polyaldehyde monomers on the surface of the base film, reacting and forming a graphene oxide/phenolic resin nanofiltration membrane on the surface of the base film to obtain the graphene oxide/phenolic resin composite nanofiltration membrane. USE - The composite nanofiltration membrane is useful in treatment of high-salt wastewater containing dyes (claimed). ADVANTAGE - The composite nanofiltration membrane has stable structure and performance, and has excellent inorganic salt/dye separation performance and a simple preparation process and is easy to produce in batches. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: Preparing composite nanofiltration membrane; and Application of composite nanofiltration membrane in the treatment of high-salt wastewater containing dyes. DESCRIPTION OF DRAWING(S) - The drawing shows a structure pattern of composite nanofiltration membrane.