Improving Anti-Fouling Properties of Polyamide Forward Osmosis Membrane by Grafting Poly Ethylenimine and Silver Nanoparticles

摘要

In this work, the effect of grafting of poly ethylenimine (PEI) on the antifouling performance of an aromatic polyamide forward osmosis membrane was investigated. Results showed that PEI modified membrane showed a good anti-contaminant property in treating wastewater containing cationic surfactant (DTAC). Furthermore, the silver nanoparticles were also introduced on the membrane surface to improve membrane anti-fouling resistance. The silver nanoparticles modified membranes showed excellent antibacterial properties.