نتایج جستجو برای: spiral wound membranes

تعداد نتایج: 194776  

Journal: :Journal of Membrane Science 2022

In this work the selectivity of crosslinked organic solvent stable PBI membranes is tuned by varying molar ratio two grafting agents: a long flexible polymer modifier (Elastamine RE-1-1000, 1000 g mol-1) and small molecule (2-methoxyethylamine, 75 mol-1). Grafting exclusively with chain provided membrane molecular weight cut-off (MWCO) 2000 mol-1 in acetonitrile. Increasing proportion reaction ...

2010

OBJECTIVES: The performance of spiral-wound nanofiltration (NF) and ultrafiltration (UF) membranes was investigated in terms of natural organic matter (NOM) rejection and associated NOM fouling. The study objectives focused on • demonstrating the effects of both hydrophobic and electrostatic interactions between NOM components and the membrane surface • determining influential factors (water qu...

In this work, performance data from a small-scale reverse osmosis (RO) plant based on seawater FilmTec spiral wound RO membranes for different periods of operation are presented and analyzed. A prototype RO set-up with a 2,200 L/d capacity was installed and operated at Urla Bay which was located in Izmir, Turkey. This study typically investigates RO performance in terms ...

Journal: :Journal of Membrane Science 2021

Recent research efforts in taking pressure retarded osmosis closer to commercialization have concentrated on the development of osmosis-specific membranes. The module design, other hand, has not attracted much attention, although need for designs was identified, when traditional desalination were proven unfeasible applications. This work introduces a novel, design. submerged-helical is low pack...

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