Comparison of two different UV-grafted nanofiltration membranes prepared for reduction of humic acid fouling using acrylic acid and N-vinylpyrrolidone

M. N.Abu Seman; M. Khayet; N. Hilal

doi:10.1016/j.desal.2010.10.031

Comparison of two different UV-grafted nanofiltration membranes prepared for reduction of humic acid fouling using acrylic acid and N-vinylpyrrolidone

M. N.Abu Seman, M. Khayet, N. Hilal

Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

UV-photografting using two different monomers, acrylic acid and N-vinylpyrrolidone, with different concentrations in an aqueous solution and various irradiation times were studied. Irreversible fouling of both the un-grafted polyethersulfone and the UV-grafted membranes have been studied using humic acid model solutions at two different pH values; 7 and 3. It was observed that the UV-grafted membranes exhibited practically less tendency to be irreversibly fouled by humic acid molecules at pH 7. However at the acidic condition of pH 3, some membranes exhibited a higher degree of fouling more than the un-grafted membrane, especially for membranes with higher roughness values. The smaller pore size generated after UV-grafting of polyethersulfone membrane did not significantly affect humic acid removal due to the larger humic acid molecular size.

Original language	English (US)
Pages (from-to)	19-29
Number of pages	11
Journal	Desalination
Volume	287
DOIs	https://doi.org/10.1016/j.desal.2010.10.031
State	Published - Nov 15 2012

Keywords

Acrylic acid
Humic acid
N-vinylpyrrolidone
Polyethersulfone
UV-photografting

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science
Water Science and Technology
Mechanical Engineering

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10.1016/j.desal.2010.10.031

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title = "Comparison of two different UV-grafted nanofiltration membranes prepared for reduction of humic acid fouling using acrylic acid and N-vinylpyrrolidone",

abstract = "UV-photografting using two different monomers, acrylic acid and N-vinylpyrrolidone, with different concentrations in an aqueous solution and various irradiation times were studied. Irreversible fouling of both the un-grafted polyethersulfone and the UV-grafted membranes have been studied using humic acid model solutions at two different pH values; 7 and 3. It was observed that the UV-grafted membranes exhibited practically less tendency to be irreversibly fouled by humic acid molecules at pH 7. However at the acidic condition of pH 3, some membranes exhibited a higher degree of fouling more than the un-grafted membrane, especially for membranes with higher roughness values. The smaller pore size generated after UV-grafting of polyethersulfone membrane did not significantly affect humic acid removal due to the larger humic acid molecular size.",

keywords = "Acrylic acid, Humic acid, N-vinylpyrrolidone, Polyethersulfone, UV-photografting",

author = "Seman, {M. N.Abu} and M. Khayet and N. Hilal",

note = "Funding Information: We would like to thank the Ministry of Higher Education, Malaysia for supporting Mazrul Abu Seman's study. M. Khayet is thankful to the University Complutense of Madrid (UCM) for the grant.",

year = "2012",

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doi = "10.1016/j.desal.2010.10.031",

language = "English (US)",

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AU - Seman, M. N.Abu

AU - Khayet, M.

AU - Hilal, N.

N1 - Funding Information: We would like to thank the Ministry of Higher Education, Malaysia for supporting Mazrul Abu Seman's study. M. Khayet is thankful to the University Complutense of Madrid (UCM) for the grant.

PY - 2012/11/15

Y1 - 2012/11/15

N2 - UV-photografting using two different monomers, acrylic acid and N-vinylpyrrolidone, with different concentrations in an aqueous solution and various irradiation times were studied. Irreversible fouling of both the un-grafted polyethersulfone and the UV-grafted membranes have been studied using humic acid model solutions at two different pH values; 7 and 3. It was observed that the UV-grafted membranes exhibited practically less tendency to be irreversibly fouled by humic acid molecules at pH 7. However at the acidic condition of pH 3, some membranes exhibited a higher degree of fouling more than the un-grafted membrane, especially for membranes with higher roughness values. The smaller pore size generated after UV-grafting of polyethersulfone membrane did not significantly affect humic acid removal due to the larger humic acid molecular size.

AB - UV-photografting using two different monomers, acrylic acid and N-vinylpyrrolidone, with different concentrations in an aqueous solution and various irradiation times were studied. Irreversible fouling of both the un-grafted polyethersulfone and the UV-grafted membranes have been studied using humic acid model solutions at two different pH values; 7 and 3. It was observed that the UV-grafted membranes exhibited practically less tendency to be irreversibly fouled by humic acid molecules at pH 7. However at the acidic condition of pH 3, some membranes exhibited a higher degree of fouling more than the un-grafted membrane, especially for membranes with higher roughness values. The smaller pore size generated after UV-grafting of polyethersulfone membrane did not significantly affect humic acid removal due to the larger humic acid molecular size.

KW - Acrylic acid

KW - Humic acid

KW - N-vinylpyrrolidone

KW - Polyethersulfone

KW - UV-photografting

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Comparison of two different UV-grafted nanofiltration membranes prepared for reduction of humic acid fouling using acrylic acid and N-vinylpyrrolidone

Abstract

Keywords

ASJC Scopus subject areas

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