Role of NaA zeolites in the interfacial polymerization process towards a polyamide nanocomposite reverse osmosis membrane

RSC Advances ◽  
2013 ◽  
Vol 3 (22) ◽  
pp. 8203 ◽  
Author(s):  
Hai Huang ◽  
Xinying Qu ◽  
Hang Dong ◽  
Lin Zhang ◽  
Huanlin Chen
Keyword(s):  
Reverse Osmosis ◽  
Interfacial Polymerization ◽  
Polymerization Process ◽  
Reverse Osmosis Membrane

scholarly journals Transport of N-Nitrosamines through a Reverse Osmosis Membrane: Role of Molecular Size and Nitrogen Atoms

2018 ◽  
Vol 6 (1) ◽  
pp. 44-48 ◽  
Author(s):  
Takahiro Fujioka ◽  
Hitoshi Kodamatani ◽  
Long D. Nghiem ◽  
Takuji Shintani
Keyword(s):  
Reverse Osmosis ◽  
Molecular Size ◽  
Reverse Osmosis Membrane

scholarly journals Development of high-performance mixed matrix reverse osmosis membranes by incorporating aminosilane-modified hydrotalcite

RSC Advances ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 5648-5655
Author(s):  
Xinxia Tian ◽  
Zhen Cao ◽  
Jian Wang ◽  
Jiangrong Chen ◽  
Yangyang Wei
Keyword(s):  
Thin Film ◽  
Aqueous Solution ◽  
Reverse Osmosis ◽  
High Performance ◽  
Interfacial Polymerization ◽  
Polymerization Process ◽  
Mixed Matrix ◽  
Thin Film Nanocomposite ◽  
Reverse Osmosis Membranes

Thin film nanocomposite reverse osmosis membranes were prepared by dispersing 3-aminopropyltriethoxysilane modified hydrotalcite in aqueous solution and incorporating the nanoparticles in polyamide layer during interfacial polymerization process.

scholarly journals Biguanidine functional chitooligosaccharide modified reverse osmosis membrane with improved anti-biofouling property

RSC Advances ◽  
2018 ◽  
Vol 8 (73) ◽  
pp. 41938-41949 ◽  
Author(s):  
Huihui Wang ◽  
Yixuan Zhou ◽  
Yao Wang ◽  
Zhi Wang ◽  
Jixiao Wang
Keyword(s):  
Reverse Osmosis ◽  
Interfacial Polymerization ◽  
Antimicrobial Properties ◽  
Reverse Osmosis Membrane ◽  
Ro Membrane

The COSG-modified RO membrane with excellent anti-adhesive and antimicrobial properties was successfully fabricated by second interfacial polymerization.

Effects of DMSO and glycerol additives on the property of polyamide reverse osmosis membrane

2016 ◽  
Vol 74 (7) ◽  
pp. 1619-1625 ◽  
Author(s):  
Fengjing Wu ◽  
Xiaojuan Liu ◽  
Chaktong Au
Keyword(s):  
Contact Angle ◽  
Reverse Osmosis ◽  
Water Contact Angle ◽  
Interfacial Polymerization ◽  
Water Flux ◽  
Cross Flow ◽  
Interfacial Free Energy ◽  
Polymerization Process ◽  
Water Contact ◽  
Salt Rejection

The polyamide reverse osmosis (RO) membranes were prepared through interfacial polymerization of m-phenylenediamine (MPD) and trimesoyl chloride (TMC). The use of dimethyl sulfoxide (DMSO) and glycerol as additives for the formation of thin-film composite (TFC) was investigated. We studied the effect of DMSO and glycerol addition on membrane property and RO performance. Microscopic morphology was examined by atomic force microscopy and scanning electron microscopy. The surface hydrophilicity was characterized on the basis of water contact angle and surface solid–liquid interfacial free energy (−ΔGSL). Water flux and salt rejection ability of the membranes prepared with or without the additives were evaluated by cross-flow RO tests. The results reveal that the addition of DMSO and glycerol strongly influences the property of the TFC RO membrane. Compared to the MPD/TMC membrane fabricated without DMSO and glycerol, the MPD/TMC/DMSO/glycerol membrane has a rougher surface and is more hydrophilic, showing smaller water contact angle and larger −ΔGSL value. Without decrease in salt rejection ability, the MPD/TMC/DMSO/glycerol membrane shows water flux significantly larger than that of the MPD/TMC membrane. The unique property of the MPD/TMC/DMSO/glycerol membrane is attributed to the cooperative effect of DMSO and glycerol on membrane structure during the interfacial polymerization process.

scholarly journals Fouling of Reverse Osmosis Membrane by Alginate and the Role of Calcium Ions in the Integrated Membrane System for Reclamation of Municipal Wastewater

2020 ◽  
Vol 43 (6) ◽  
pp. 165-173
Author(s):  
Mifuyu HARADA ◽  
Kazuki FURUSAWA ◽  
Tasuma SUZUKI ◽  
Masakazu NIINAE ◽  
Yoshinari WADA ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Calcium Ions ◽  
Municipal Wastewater ◽  
Membrane System ◽  
Reverse Osmosis Membrane
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