Chemically treated polyethersulfone/polyacrylonitrile blend ultrafiltration membranes for better fouling resistance

Reddy, A.V.R.; Patel, Hardik

doi:10.1016/j.desal.2007.01.089

Cited by 79 publications

(28 citation statements)

References 17 publications

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“…Therefore, changes in contact angle may relate to membrane modification. According to literature [31,32], the contact angle values depend on chemistry, roughness, and heterogeneity of surface as well as membrane parameters. This is consistence with the findings of the current study.…”

Section: Resultsmentioning

confidence: 99%

Removal of amoxicillin from wastewater by self-made Polyethersulfone membrane using nanofiltration

Moarefian

Golestani

Bahmanpour

2014

J Environ Health Sci Engineer

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The present study investigated the performance of a self-made nanofiltration (NF) membrane for the removal of antibiotics from wastewater under changing operating conditions such as pH, initial feed concentration, operating pressure, and temperature. Amoxicillin (AMX) was used as one of the commonly prescribed antibiotics. A self-made NF membrane containing Polyethersulfone (PES), and Polyvinylpyrrolidone (PVP) was modified with Polyethylene glycol hexadecyl ether (Brij®58) surfactant. The self-made membrane was characterized by water contact angle, zeta potential, ATR-FTIR spectroscopy, and scanning electronic microscope (SEM). The obtained results showed that the AMX rejection and permeation flux by the self-made membrane varied from 56.49% to 99.09% and from 15.14 L/m2h to 110.29 L/m2h, respectively. The AMX rejection decreased at a higher level of initial feed concentration while other operating parameters such as pH, operating pressure, and temperature had a negligible effect on the removal of AMX from wastewater by the self-made NF membrane. The highest removal rate was achieved under conditions of pH 9.0, a temperature of 298 K, an operating pressure of 2 MPa, and an initial feed concentration of 20 ppm. According to the research findings, the self-made NF membrane is recommended for the removal of AMX to a considerable extent at low initial feed concentrations.

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Section: Resultsmentioning

confidence: 99%

Removal of amoxicillin from wastewater by self-made Polyethersulfone membrane using nanofiltration

Moarefian

Golestani

Bahmanpour

2014

J Environ Health Sci Engineer

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“…However, it is mandatory that these modifi cations happen at the fi bre surface only, leaving intact the core structure which is essential for the resistance and integrity of acrylic fi bres. Current methods for the addition of functional groups or transformation of existing nitrile groups on the surface of acrylic fi bres involve the action of chemical or physical agents, like hydrogen peroxide, concentrated acids and bases, or using radiation and plasma (Guebitz and Cavaco-Paulo, 2008 ;Wang et al ., 2007 ;Reddy and Patel, 2008 ;Tran et al ., 2007 ;Liu and Lu, 2006 ;Dai et al ., 2008 ;Crenshaw et al ., 2007 ;Gupta et al ., 2004 ). But, as referred previously, these methods present major disadvantages, leaving a very important gap that can be addressed with biotechnology.…”

Section: Biotransformations Of Acrylic Fi Bresmentioning

confidence: 96%

Enzymatic biofinishes for synthetic textiles

Silva

Cavaco-Paulo

2015

Functional Finishes for Textiles

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“…Modifying the composition in the casting solution with additive has been one of the convenient and efficient techniques to prepared membranes with optimal morphology and performance. The additive may be organic [1][2][3][4][5] or inorganic [6][7][8] materials.…”

Section: Introductionmentioning

confidence: 99%

“…Phase inversion method is commonly used to prepare symmetric and asymmetric ultrafiltration (UF) membranes, in which a film of concentrated polymer solution is cast on a suitable substrate and subsequently dried in a thermal atmosphere or immersed in a non-solvent bath to replace of solvent by thermal-induced vaporization or coagulantprecipitation of polymer [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of PPSU/PEI blend membranes

Hsieh

Zhuang

et al. 2010

2010 International Conference on Chemistry and Chemical Engineering

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Polyetherimide (PEI) ultrafiltration membranes were surface modified using crystalline PPSU polymer additive through thermal-induced phase inversion method. The pure and blend membranes were characterized in terms of differential scanning calorimetry, morphology and pure water flux. The effects of polymer concentration and blending ratio on membrane structure and properties were investigated. The results indicated that the blending PEI with PPSU in the casting solution led to a decrease in crystallinity and an increase in surface and internal pore size and porosity of the membranes, which in return increased the pure water flux of the blend membranes.

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Chemically treated polyethersulfone/polyacrylonitrile blend ultrafiltration membranes for better fouling resistance

Cited by 79 publications

References 17 publications

Removal of amoxicillin from wastewater by self-made Polyethersulfone membrane using nanofiltration

Removal of amoxicillin from wastewater by self-made Polyethersulfone membrane using nanofiltration

Enzymatic biofinishes for synthetic textiles

Preparation and characterization of PPSU/PEI blend membranes

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