Bio- and oil-fouling resistance of ultrafiltration membranes controlled by star-shaped block and random copolymer coatings

RSC Advances ◽  
2013 ◽  
Vol 3 (39) ◽  
pp. 18071 ◽  
Author(s):  
Dong-Gyun Kim ◽  
Hyo Kang ◽  
Sungsoo Han ◽  
Hee Joong Kim ◽  
Jong-Chan Lee
Keyword(s):  
Random Copolymer ◽  
Fouling Resistance ◽  
Ultrafiltration Membranes ◽  
Oil Fouling

Physical–chemical properties, separation performance, and fouling resistance of mixed-matrix ultrafiltration membranes

Desalination ◽  
2011 ◽  
Vol 283 ◽  
pp. 89-99 ◽  
Author(s):  
Eric M.V. Hoek ◽  
Asim K. Ghosh ◽  
Xiaofei Huang ◽  
Monty Liong ◽  
Jeffrey I. Zink
Keyword(s):  
Chemical Properties ◽  
Separation Performance ◽  
Fouling Resistance ◽  
Mixed Matrix ◽  
Ultrafiltration Membranes ◽  
Physical Chemical

scholarly journals Effect of Precipitation Temperature on the Properties of Cellulose Ultrafiltration Membranes Prepared via Immersion Precipitation with Ionic Liquid as Solvent

Membranes ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 87 ◽  
Author(s):  
Daria Nevstrueva ◽  
Arto Pihlajamäki ◽  
Juha Nikkola ◽  
Mika Mänttäri
Keyword(s):  
Ionic Liquid ◽  
Pure Water ◽  
Polymer Concentration ◽  
Water Flux ◽  
Bath Temperature ◽  
Liquid Solution ◽  
Coagulation Bath ◽  
Fouling Resistance ◽  
Ultrafiltration Membranes ◽  
Coagulation Bath Temperature

Supported cellulose ultrafiltration membranes are cast from a cellulose-ionic liquid solution by the immersion precipitation technique. The effects of coagulation bath temperature and polymer concentration in the casting solution on the membrane morphology, wettability, pure water flux, molecular weight cut-off, and fouling resistance are studied. Scanning electron microscopy, contact angle measurements, atomic force microscopy, and filtration experiments are carried out in order to characterise the obtained ultrafiltration cellulose membranes. The results show the effect of coagulation bath temperature and polymer concentration on the surface morphology and properties of cellulose ultrafiltration membranes. Optimisation of the two parameters leads to the creation of dense membranes with good pure water fluxes and proven fouling resistance towards humic acid water solutions.

Improvements in permeation and fouling resistance of PVC ultrafiltration membranes via addition of Tetronic-1107 and Triton X-100 as two non-ionic and hydrophilic surfactants

2016 ◽  
Vol 74 (6) ◽  
pp. 1469-1483 ◽  
Author(s):  
Hesamoddin Rabiee ◽  
S. Mojtaba Seyedi ◽  
Hossein Rabiei ◽  
Negar Alvandifar
Keyword(s):  
Electron Microscopy ◽  
Water Flux ◽  
Fouling Resistance ◽  
Ultrafiltration Membranes ◽  
Poly Vinyl Chloride ◽  
Triton X ◽  
Thermodynamic Instability ◽  
Microscopy Images ◽  
Bsa Rejection ◽  
Scanning Electron

Two non-ionic and hydrophilic surfactant additives, Tetronic-1107 and Triton X-100, were added to poly(vinyl chloride)/NMP polymeric solution to prepare ultrafiltration membranes via immersion precipitation. Surfactants at three different weight percentages up to 6 wt% were added, and the fabricated membranes were characterized and their performance for water treatment in the presence of bovine serum albumin (BSA) as a foulant was assessed. The scanning electron microscopy images indicated remarkable changes in morphology due to higher thermodynamic instability after surfactant addition. The membranes are more porous with more macro-voids in the sub-layer. Plus, the membranes become more hydrophilic. Water flux increases for the modified membranes by nearly two times and the ability of membranes for flux recovery increases from 66% to over 83%. BSA rejection reduces slightly with the addition of surfactants, however this parameter is still almost over 90% for the membranes with the highest amount of surfactants.

Enhanced oil-fouling resistance of poly(ether sulfone) membranes by incorporation of novel amphiphilic zwitterionic copolymers

RSC Advances ◽  
2016 ◽  
Vol 6 (9) ◽  
pp. 7532-7543 ◽  
Author(s):  
Guangfa Zhang ◽  
Fan Gao ◽  
Qinghua Zhang ◽  
Xiaoli Zhan ◽  
Fengqiu Chen
Keyword(s):  
Fouling Resistance ◽  
Pes Membrane ◽  
Oil Fouling

A heterogeneous PES membrane modified with novel amphiphilic zwitterionic copolymers that displayed dramatically enhanced oil-fouling resistance.

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