Preparation of Composite Polymeric Membranes for Brackish Water Desalination Using Direct Osmosis Process

This work examined the osmosis process by using a novel composite membrane includes a poroussubstrate made from polysulfone (PSf) and a dense layer formed by interfacial reaction of M-phenylenediamine (MPD) and benzene ۱-۳-۵-tricarbonyl chloride (TMC) monomers.Performance of the membranewas evaluated by considering (۱) thickness of the substrate, (۲) the ratio of polyamide monomers(MPD/TMC) and (۳) the techniques for depositing of the dense layer on the support. The results revealedthat the thickness of ۱۰۰ microns in comparison with ۱۲۵,۱۵۰ and ۱۷۵ ones has the highest performanceand MPD/TMC ratio of ۷-۱۰ represent better performance compared to the other ratios.

کلیدواژه ها:

direct osmosis ، substrate ، phase inversion ، interfacial polymerization