Nanofiltration performance as a function of feed temperature is relevant to several industrial settings including pretreatment for scale control in thermal desalination. Understanding of solute transport as a function of temperature is critical for effective membrane and system design. In this study, nanofiltration is modeled at 22, 40 and 50C using the Donnan Steric Pore Model with dielectric ...

In this work, we report the synthesis and characteristics of cyclomatrix polyphosphazene membranes based on interfacial polymerization between 1,1-tris(4-hydroxyphenyl)ethane hexachlorocyclotriphosphazene top alumina or polyacrylonitrile supports. The potential alumina-supported thin film composite as organic solvent nanofiltration has been confirmed with a polystyrene-based molecular weight cu...

Ozone is a strong oxidant applied in water treatment for disinfection and organic inorganic pollutants removal. It can be coupled with membrane processes as pre-treatment or post-treatment well hybrid configuration. In this study, we investigated the resistance of three commercial polymer nanofiltration membranes (NP10, NF90 NF270) contact ozone (10 ppm 1 h) at pH 3 7 to assess influence hydrox...

The results of investigations of flux decline during nanofiltration (NF) of lactic acid solutions using dynamically formed zirconium(IV) hydrous oxide/polyacrylate membranes (Zr(IV)/PAA) under conditions resulting in low and high lactic acid rejection are reported. The experimental permeate flux versus time curves were analyzed in the frame of resistance in a series model with the aim of develo...

Fabrication of an organic polymer nanofiltration with both high water permeability and salt rejection is still a big challenge. Herein, phytic acid (PhA)-modified graphene oxide (GO) was used...

Polyethersulfone (PES) based nanocomposite nanofiltration membrane was prepared by immersion precipitation method and casting solution technique using  poly (acrylic acid) grafted-iron oxide nanoparticles (Fe3O4) as hydrophilic filler additives. For this purpose, iron oxide nanoparticles were modified by in situ polymerization of acrylic acid in aqueous solution by potassium persulfate as initi...