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Removal of endocrine disrupting chemicals using low pressure reverse osmosis membrane

Endocrine disrupting chemicals (EDCs) are one of the major focuses of contaminants in current environmental issues, as they can cause adverse health effects on animals and human, particularly to endocrine function. The objective of this study was to remove a specific group of EDCs (i.e molecular wei...

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Main Author:	Abd. Razak, Azri Rasyidi
Format:	Thesis
Language:	English
Published:	2009
Subjects:	GE Environmental Sciences TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/6933/1/AzriRasyidiAbdMFKA2009.pdf http://eprints.utm.my/id/eprint/6933/
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spelling	my.utm.69332018-06-25T01:04:57Z http://eprints.utm.my/id/eprint/6933/ Removal of endocrine disrupting chemicals using low pressure reverse osmosis membrane Abd. Razak, Azri Rasyidi GE Environmental Sciences TA Engineering (General). Civil engineering (General) Endocrine disrupting chemicals (EDCs) are one of the major focuses of contaminants in current environmental issues, as they can cause adverse health effects on animals and human, particularly to endocrine function. The objective of this study was to remove a specific group of EDCs (i.e molecular weight range 228 to 288 g/mol) using low pressure reverse osmosis membrane (LPROM). A multi-layer thin-film composite of aromatic polyamide (ES20) membrane and a C10-T cross flow module of LPROM manufactured by Nitto Denko Company was used in this study. The effects of operating parameters, i.e. pH, operating pressure, concentration and temperature were observed using a design of experiment based on MINITABTM software. The analysis of results was conducted by factorial analysis (FA) and response surface analysis (RSA). It was found that LPROM has been effectively applied to remove pentachlorophenol (PCP) (more than 83%), 17ÃŸ-estradiol (more than 87%) and bisphenol-A (BPA) (more than 87%). For permeate flux, both PCP and 17ÃŸ-estradiol tests produce excellent flux rate; i.e. 23.8 L/m2.h and 22.9 L/m2.h, respectively. For BPA, the permeate flux produced was slightly lower (19.1 L/m2.h) due to its physical-chemical properties effect at various levels of the recovery rate. In this study, the percentage of rejection was increased with the increased of pH and concentration of compounds. The flux was observed to increase with the increase of operating pressure. This study also investigated the interaction effects between operating parameters involved. In addition, statistical models were developed to represent the performance of LPROM under two response parameters, i.e. percentage of EDCs rejection and permeate flux. Statistical models were then validated using One-Factor-At-a-Time (OFAT) design of experiments and comparisons were made to better understand the trend of EDCs rejection and permeate flux. 2009-01 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/6933/1/AzriRasyidiAbdMFKA2009.pdf Abd. Razak, Azri Rasyidi (2009) Removal of endocrine disrupting chemicals using low pressure reverse osmosis membrane. Masters thesis, Universiti Teknologi Malaysia, Faculty of Civil Engineering.
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
language	English
topic	GE Environmental Sciences TA Engineering (General). Civil engineering (General)
spellingShingle	GE Environmental Sciences TA Engineering (General). Civil engineering (General) Abd. Razak, Azri Rasyidi Removal of endocrine disrupting chemicals using low pressure reverse osmosis membrane
description	Endocrine disrupting chemicals (EDCs) are one of the major focuses of contaminants in current environmental issues, as they can cause adverse health effects on animals and human, particularly to endocrine function. The objective of this study was to remove a specific group of EDCs (i.e molecular weight range 228 to 288 g/mol) using low pressure reverse osmosis membrane (LPROM). A multi-layer thin-film composite of aromatic polyamide (ES20) membrane and a C10-T cross flow module of LPROM manufactured by Nitto Denko Company was used in this study. The effects of operating parameters, i.e. pH, operating pressure, concentration and temperature were observed using a design of experiment based on MINITABTM software. The analysis of results was conducted by factorial analysis (FA) and response surface analysis (RSA). It was found that LPROM has been effectively applied to remove pentachlorophenol (PCP) (more than 83%), 17ÃŸ-estradiol (more than 87%) and bisphenol-A (BPA) (more than 87%). For permeate flux, both PCP and 17ÃŸ-estradiol tests produce excellent flux rate; i.e. 23.8 L/m2.h and 22.9 L/m2.h, respectively. For BPA, the permeate flux produced was slightly lower (19.1 L/m2.h) due to its physical-chemical properties effect at various levels of the recovery rate. In this study, the percentage of rejection was increased with the increased of pH and concentration of compounds. The flux was observed to increase with the increase of operating pressure. This study also investigated the interaction effects between operating parameters involved. In addition, statistical models were developed to represent the performance of LPROM under two response parameters, i.e. percentage of EDCs rejection and permeate flux. Statistical models were then validated using One-Factor-At-a-Time (OFAT) design of experiments and comparisons were made to better understand the trend of EDCs rejection and permeate flux.
format	Thesis
author	Abd. Razak, Azri Rasyidi
author_facet	Abd. Razak, Azri Rasyidi
author_sort	Abd. Razak, Azri Rasyidi
title	Removal of endocrine disrupting chemicals using low pressure reverse osmosis membrane
title_short	Removal of endocrine disrupting chemicals using low pressure reverse osmosis membrane
title_full	Removal of endocrine disrupting chemicals using low pressure reverse osmosis membrane
title_fullStr	Removal of endocrine disrupting chemicals using low pressure reverse osmosis membrane
title_full_unstemmed	Removal of endocrine disrupting chemicals using low pressure reverse osmosis membrane
title_sort	removal of endocrine disrupting chemicals using low pressure reverse osmosis membrane
publishDate	2009
url	http://eprints.utm.my/id/eprint/6933/1/AzriRasyidiAbdMFKA2009.pdf http://eprints.utm.my/id/eprint/6933/
_version_	1643644669229268992
score	13.211869

Removal of endocrine disrupting chemicals using low pressure reverse osmosis membrane

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