PVA / chitosan / teos hybrid membrane for copper and ferum ions removal / Nurul Aida Sulaiman

PVA / chitosan / teos hybrid membrane for copper and ferum ions removal / Nurul Aida Sulaiman

The removal of ferum (Fe) and copper (Cu) metal ions from industrial wastewater is a crucial due to its harmful effects on human health and living organisms in the environment. There are various methods used in order to solve this problem, such as ion – exchange, chemical precipitation, adsorption a...

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Main Author: Sulaiman, Nurul Aida
Format: Thesis
Language:English
Published: 2018
Online Access:https://ir.uitm.edu.my/id/eprint/86346/1/86346.pdf
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spelling my-uitm-ir.863462024-09-24T00:57:06Z PVA / chitosan / teos hybrid membrane for copper and ferum ions removal / Nurul Aida Sulaiman 2018 Sulaiman, Nurul Aida The removal of ferum (Fe) and copper (Cu) metal ions from industrial wastewater is a crucial due to its harmful effects on human health and living organisms in the environment. There are various methods used in order to solve this problem, such as ion – exchange, chemical precipitation, adsorption and membrane technology. Membrane technology is an attractive method compared to the other methods due to its high efficiency of metal ions removal. However, this method has its drawback such as membrane fouling. Thus, in this study a new composite membrane is fabricated to remove copper and ferum ions. The composite membrane consist a thin layer of hybrid membrane as a barrier layer and polysulfone (psf) as a support layer. During the formulation of hybrid membrane, a polymer blend of poly(vinyl alcohol) (PVA) with chitosan (cs) was chosen as organic polymer and it was cross-linked with tetraethylorthosilicate (TEOS), using sol-gel method to prepare the hybrid membrane. Concentration of TEOS cross linker was varied at (0wt%, 1wt%, 3wt% and 5wt%) and chitosan was varied at (1wt%, 2wt% and 3wt%) respectively with fixed concentration of poly(vinyl alcohol) (PVA) solution (10wt%). These membranes were characterised using various tests such as fourier transform infrared spectroscopy (FTIR), thermal analysis via thermogravimetry analyzer (TGA) and differential scanning calorimetry (DSC), mechanical strength, water contact angle, swelling measurement and anti-fouling behaviour. Results showed that, the composite membrane was successfully formulated due to its great characteristics in term of thermal stability, mechanical strength and anti-fouling properties. It also exhibit better anti – fouling performance where it resulting lower flux declining rate and higher flux recovery rate with and without natural organic matter (humic acid). Besides, it showed a great performance where > 90% copper and ferum ions could be removed from the feed solution at ≥ pH 7. The thin film composite membrane with 3wt% TEOS (M2) exhibits a rejection > 80.0% of copper and ferum ions from industrial wastewater. 2018 Thesis https://ir.uitm.edu.my/id/eprint/86346/ https://ir.uitm.edu.my/id/eprint/86346/1/86346.pdf text en public masters Universiti Teknologi MARA (UiTM) Faculty of Chemical Engineering Kassim Shaari, Norin Zamiah
institution Universiti Teknologi MARA
collection UiTM Institutional Repository
language English
advisor Kassim Shaari, Norin Zamiah
description The removal of ferum (Fe) and copper (Cu) metal ions from industrial wastewater is a crucial due to its harmful effects on human health and living organisms in the environment. There are various methods used in order to solve this problem, such as ion – exchange, chemical precipitation, adsorption and membrane technology. Membrane technology is an attractive method compared to the other methods due to its high efficiency of metal ions removal. However, this method has its drawback such as membrane fouling. Thus, in this study a new composite membrane is fabricated to remove copper and ferum ions. The composite membrane consist a thin layer of hybrid membrane as a barrier layer and polysulfone (psf) as a support layer. During the formulation of hybrid membrane, a polymer blend of poly(vinyl alcohol) (PVA) with chitosan (cs) was chosen as organic polymer and it was cross-linked with tetraethylorthosilicate (TEOS), using sol-gel method to prepare the hybrid membrane. Concentration of TEOS cross linker was varied at (0wt%, 1wt%, 3wt% and 5wt%) and chitosan was varied at (1wt%, 2wt% and 3wt%) respectively with fixed concentration of poly(vinyl alcohol) (PVA) solution (10wt%). These membranes were characterised using various tests such as fourier transform infrared spectroscopy (FTIR), thermal analysis via thermogravimetry analyzer (TGA) and differential scanning calorimetry (DSC), mechanical strength, water contact angle, swelling measurement and anti-fouling behaviour. Results showed that, the composite membrane was successfully formulated due to its great characteristics in term of thermal stability, mechanical strength and anti-fouling properties. It also exhibit better anti – fouling performance where it resulting lower flux declining rate and higher flux recovery rate with and without natural organic matter (humic acid). Besides, it showed a great performance where > 90% copper and ferum ions could be removed from the feed solution at ≥ pH 7. The thin film composite membrane with 3wt% TEOS (M2) exhibits a rejection > 80.0% of copper and ferum ions from industrial wastewater.
format Thesis
qualification_level Master's degree
author Sulaiman, Nurul Aida
spellingShingle Sulaiman, Nurul Aida
PVA / chitosan / teos hybrid membrane for copper and ferum ions removal / Nurul Aida Sulaiman
author_facet Sulaiman, Nurul Aida
author_sort Sulaiman, Nurul Aida
title PVA / chitosan / teos hybrid membrane for copper and ferum ions removal / Nurul Aida Sulaiman
title_short PVA / chitosan / teos hybrid membrane for copper and ferum ions removal / Nurul Aida Sulaiman
title_full PVA / chitosan / teos hybrid membrane for copper and ferum ions removal / Nurul Aida Sulaiman
title_fullStr PVA / chitosan / teos hybrid membrane for copper and ferum ions removal / Nurul Aida Sulaiman
title_full_unstemmed PVA / chitosan / teos hybrid membrane for copper and ferum ions removal / Nurul Aida Sulaiman
title_sort pva / chitosan / teos hybrid membrane for copper and ferum ions removal / nurul aida sulaiman
granting_institution Universiti Teknologi MARA (UiTM)
granting_department Faculty of Chemical Engineering
publishDate 2018
url https://ir.uitm.edu.my/id/eprint/86346/1/86346.pdf
_version_ 1811768709711134720

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