Rejection of endocrine disrupting compounds by membrane adsorption in nanofiltration and reverse osmosis (nf/ro) membranes

Removals of selected EDCs by adsorption mechanism on NF/RO membranes were studied. Adsorption was mainly influenced by the hydrophobic nature of the compound, pore size of membrane, MW, surface roughness. Static adsorptions of EDCs were carried on NF270, NF90 and BW30 membranes. E1 was analyzed by t...

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Main Author: Abdul Gafoor Midhath
Other Authors: Tang Chuyang
Format: Final Year Project
Language:English
Published: 2010
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Online Access:http://hdl.handle.net/10356/39955
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-399552023-03-03T17:22:02Z Rejection of endocrine disrupting compounds by membrane adsorption in nanofiltration and reverse osmosis (nf/ro) membranes Abdul Gafoor Midhath Tang Chuyang School of Civil and Environmental Engineering Singapore Membrane Technology Centre DRNTU::Engineering::Environmental engineering::Water treatment Removals of selected EDCs by adsorption mechanism on NF/RO membranes were studied. Adsorption was mainly influenced by the hydrophobic nature of the compound, pore size of membrane, MW, surface roughness. Static adsorptions of EDCs were carried on NF270, NF90 and BW30 membranes. E1 was analyzed by the method of SPE followed by LCMSMS while DMP, DEP, DBP and DEHP were analyzed by the SPE-HPLC method of detection. The results of E1 indicated that surface roughness was the major factor for its high adsorption value. However, NF270 which is smoother showed significant rejection percentage. Larger pore size of the NF270 membrane enabling E1 to partition into the membrane matrix could explain its significant adsorption value. The results for the phthalates showed that hydrophobicity and MW were major factors for the adsorption amounts in these EDCs. Membrane pore size also affects the adsorption amount on small MW phthalates. Adsorption mechanism was primarily driven by hydrophobicity in DEHP, while DMP sorption was governed by pore size of the membrane as its MW is lower. Both hydrophobicity and membrane characteristics play important role in adsorption mechanism in EDCs. Bachelor of Engineering (Environmental Engineering) 2010-06-08T06:18:57Z 2010-06-08T06:18:57Z 2010 2010 Final Year Project (FYP) http://hdl.handle.net/10356/39955 en Nanyang Technological University 56 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Environmental engineering::Water treatment
spellingShingle DRNTU::Engineering::Environmental engineering::Water treatment
Abdul Gafoor Midhath
Rejection of endocrine disrupting compounds by membrane adsorption in nanofiltration and reverse osmosis (nf/ro) membranes
description Removals of selected EDCs by adsorption mechanism on NF/RO membranes were studied. Adsorption was mainly influenced by the hydrophobic nature of the compound, pore size of membrane, MW, surface roughness. Static adsorptions of EDCs were carried on NF270, NF90 and BW30 membranes. E1 was analyzed by the method of SPE followed by LCMSMS while DMP, DEP, DBP and DEHP were analyzed by the SPE-HPLC method of detection. The results of E1 indicated that surface roughness was the major factor for its high adsorption value. However, NF270 which is smoother showed significant rejection percentage. Larger pore size of the NF270 membrane enabling E1 to partition into the membrane matrix could explain its significant adsorption value. The results for the phthalates showed that hydrophobicity and MW were major factors for the adsorption amounts in these EDCs. Membrane pore size also affects the adsorption amount on small MW phthalates. Adsorption mechanism was primarily driven by hydrophobicity in DEHP, while DMP sorption was governed by pore size of the membrane as its MW is lower. Both hydrophobicity and membrane characteristics play important role in adsorption mechanism in EDCs.
author2 Tang Chuyang
author_facet Tang Chuyang
Abdul Gafoor Midhath
format Final Year Project
author Abdul Gafoor Midhath
author_sort Abdul Gafoor Midhath
title Rejection of endocrine disrupting compounds by membrane adsorption in nanofiltration and reverse osmosis (nf/ro) membranes
title_short Rejection of endocrine disrupting compounds by membrane adsorption in nanofiltration and reverse osmosis (nf/ro) membranes
title_full Rejection of endocrine disrupting compounds by membrane adsorption in nanofiltration and reverse osmosis (nf/ro) membranes
title_fullStr Rejection of endocrine disrupting compounds by membrane adsorption in nanofiltration and reverse osmosis (nf/ro) membranes
title_full_unstemmed Rejection of endocrine disrupting compounds by membrane adsorption in nanofiltration and reverse osmosis (nf/ro) membranes
title_sort rejection of endocrine disrupting compounds by membrane adsorption in nanofiltration and reverse osmosis (nf/ro) membranes
publishDate 2010
url http://hdl.handle.net/10356/39955
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