Charged surface modifying macromolecules hollow fiber nanofiltration membrane for the removal of bisphenol - a in domestic wastewater

The substances that cause endocrine disruption are massive; nevertheless estrogenic hormones as Bisphenol-A (BPA) can produce disrupting potency several thousand times higher than other chemicals. Furthermore, BPA was selected as the focus of this study due to its widespread applications and large p...

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Main Author:	Bolong, Nurmin
Format:	Thesis
Language:	English
Published:	2009
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/13582/1/NurminBolongPFKA2009.pdf
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id	my-utm-ep.13582
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spelling	my-utm-ep.135822018-06-04T09:54:10Z Charged surface modifying macromolecules hollow fiber nanofiltration membrane for the removal of bisphenol - a in domestic wastewater 2009-08 Bolong, Nurmin TA Engineering (General). Civil engineering (General) The substances that cause endocrine disruption are massive; nevertheless estrogenic hormones as Bisphenol-A (BPA) can produce disrupting potency several thousand times higher than other chemicals. Furthermore, BPA was selected as the focus of this study due to its widespread applications and large possible abundance in wastewater. Hollow fiber polyethersulfone (PES) nanofiltration (NF) membrane has been fabricated, characterized and applied for the removal of BPA from wastewater. The fabricated PES hollow fiber NF membranes are spun by phase inversion method formulated with water and charged surface modifying macromolecule (cSMM) as additives and N-methyl pyrrolidinone as solvent. The synthesized cSMM comprised of Poly(ethylene glycol) (PEG), end-capped with Hydroxybenzene-sulfonate (HBS). The study reveals that the sulfonic charge modification produces higher flux and improves the removal of ionic solutes when compared to the unmodified PES. The elemental modification of PES hollow fiber NF membrane surface is demonstrated through Energy Dispersive X-Ray (EDX), Fourier Transforms Infrared (FTIR) and X-ray Photoelectron (XPS) analysis. A small increase in the thickness of the hollow fiber outer layer is observed from the Field Emission Scanning Electron Microscopy (FESEM). Additionally, Differential Scanning Calorimetry (DSC) and FTIR analysis verify the miscibility of cSMM with PES and the presence of cSMM’s functional group. The fabricated PES hollow fiber NF membrane performs 90% removal under BPA concentration as much as 10 ppm in the wastewater of pH 8 condition. This is due to charge properties of the membrane and the negatively-charged solute under the influence of higher pH feed water matrix. Furthermore, the fabricated PES NF membrane has a high electrical characteristic of negative charge of 3.10±0.03 and a nano size pores of 1.2±4.1 nm. 2009-08 Thesis http://eprints.utm.my/id/eprint/13582/ http://eprints.utm.my/id/eprint/13582/1/NurminBolongPFKA2009.pdf application/pdf en public phd doctoral Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Bolong, Nurmin Charged surface modifying macromolecules hollow fiber nanofiltration membrane for the removal of bisphenol - a in domestic wastewater
description	The substances that cause endocrine disruption are massive; nevertheless estrogenic hormones as Bisphenol-A (BPA) can produce disrupting potency several thousand times higher than other chemicals. Furthermore, BPA was selected as the focus of this study due to its widespread applications and large possible abundance in wastewater. Hollow fiber polyethersulfone (PES) nanofiltration (NF) membrane has been fabricated, characterized and applied for the removal of BPA from wastewater. The fabricated PES hollow fiber NF membranes are spun by phase inversion method formulated with water and charged surface modifying macromolecule (cSMM) as additives and N-methyl pyrrolidinone as solvent. The synthesized cSMM comprised of Poly(ethylene glycol) (PEG), end-capped with Hydroxybenzene-sulfonate (HBS). The study reveals that the sulfonic charge modification produces higher flux and improves the removal of ionic solutes when compared to the unmodified PES. The elemental modification of PES hollow fiber NF membrane surface is demonstrated through Energy Dispersive X-Ray (EDX), Fourier Transforms Infrared (FTIR) and X-ray Photoelectron (XPS) analysis. A small increase in the thickness of the hollow fiber outer layer is observed from the Field Emission Scanning Electron Microscopy (FESEM). Additionally, Differential Scanning Calorimetry (DSC) and FTIR analysis verify the miscibility of cSMM with PES and the presence of cSMM’s functional group. The fabricated PES hollow fiber NF membrane performs 90% removal under BPA concentration as much as 10 ppm in the wastewater of pH 8 condition. This is due to charge properties of the membrane and the negatively-charged solute under the influence of higher pH feed water matrix. Furthermore, the fabricated PES NF membrane has a high electrical characteristic of negative charge of 3.10±0.03 and a nano size pores of 1.2±4.1 nm.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Bolong, Nurmin
author_facet	Bolong, Nurmin
author_sort	Bolong, Nurmin
title	Charged surface modifying macromolecules hollow fiber nanofiltration membrane for the removal of bisphenol - a in domestic wastewater
title_short	Charged surface modifying macromolecules hollow fiber nanofiltration membrane for the removal of bisphenol - a in domestic wastewater
title_full	Charged surface modifying macromolecules hollow fiber nanofiltration membrane for the removal of bisphenol - a in domestic wastewater
title_fullStr	Charged surface modifying macromolecules hollow fiber nanofiltration membrane for the removal of bisphenol - a in domestic wastewater
title_full_unstemmed	Charged surface modifying macromolecules hollow fiber nanofiltration membrane for the removal of bisphenol - a in domestic wastewater
title_sort	charged surface modifying macromolecules hollow fiber nanofiltration membrane for the removal of bisphenol - a in domestic wastewater
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2009
url	http://eprints.utm.my/id/eprint/13582/1/NurminBolongPFKA2009.pdf
_version_	1747814962710970368

Charged surface modifying macromolecules hollow fiber nanofiltration membrane for the removal of bisphenol - a in domestic wastewater

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