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Characterisation and prediction of nanofiltration charge effects. / Naser Hamzah Aljohani

Swansea University Author: Naser Hamzah Aljohani

Abstract

Membrane processes have many industrial applications such as desalination, water treatment, biotechnology, food industry, pharmaceutical and power generation. The advantages of membrane processes include high selectivity, low operating costs and energy consumption. Membrane charge plays an important...

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Published: 2015
Institution: Swansea University
Degree level: Doctoral
Degree name: Ph.D
URI: https://cronfa.swan.ac.uk/Record/cronfa42646
first_indexed 2018-08-02T18:55:12Z
last_indexed 2018-08-03T10:10:42Z
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spelling 2018-08-02T16:24:29.9774026 v2 42646 2018-08-02 Characterisation and prediction of nanofiltration charge effects. 166be73a5efc41284ff4f98b7bdf9870 NULL Naser Hamzah Aljohani Naser Hamzah Aljohani true true 2018-08-02 Membrane processes have many industrial applications such as desalination, water treatment, biotechnology, food industry, pharmaceutical and power generation. The advantages of membrane processes include high selectivity, low operating costs and energy consumption. Membrane charge plays an important role in the membrane separation of ionic species. Therefore, understanding the interaction between ions and membrane charge is essential to improve the performance of the separation. This interaction is a function of pH concentration and depends on membrane type. The objective of this thesis was to investigate the role of membrane charge in separation of ionic species. Therefore the first step is to characterise membrane charge and then using the knowledge obtained along with separation data to gain insight on the mechanism governing the separation process of charged species by NF membranes. Finally correlations between membrane charge characterisation and separation process were achieved. The aim of creating such correlations is to reduce the amount of experimental work (only characterisation needed) required to evaluate the separation efficiency of a NF membrane either in a single salt system or mixtures which in turn saves time, labour work and money. The result obtained confirms the role of membrane charge in the separation of ionic species and provides insight into the mechanism of separation in NF membranes. In fact full explanations and quantitative analysis of the role of membrane charge was achieved in this thesis. To sum up, the knowledge obtained in this thesis is important for researchers and process engineers in industries such as desalination and water treatment plant as this helps to increase the efficiency of these plants and promote the use of membrane technology in the process industries. This can be done by right choice of membranes which fit the purpose and control of the feed parameters such as pH and concentration to maximize the efficiency. E-Thesis Chemical engineering.;Nanotechnology. 31 12 2015 2015-12-31 COLLEGE NANME Engineering COLLEGE CODE Swansea University Doctoral Ph.D 2018-08-02T16:24:29.9774026 2018-08-02T16:24:29.9774026 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Naser Hamzah Aljohani NULL 1 0042646-02082018162510.pdf 10805422.pdf 2018-08-02T16:25:10.8500000 Output 21636096 application/pdf E-Thesis true 2018-08-02T16:25:10.8500000 false
title Characterisation and prediction of nanofiltration charge effects.
spellingShingle Characterisation and prediction of nanofiltration charge effects.
Naser Hamzah Aljohani
title_short Characterisation and prediction of nanofiltration charge effects.
title_full Characterisation and prediction of nanofiltration charge effects.
title_fullStr Characterisation and prediction of nanofiltration charge effects.
title_full_unstemmed Characterisation and prediction of nanofiltration charge effects.
title_sort Characterisation and prediction of nanofiltration charge effects.
author_id_str_mv 166be73a5efc41284ff4f98b7bdf9870
author_id_fullname_str_mv 166be73a5efc41284ff4f98b7bdf9870_***_Naser Hamzah Aljohani
author Naser Hamzah Aljohani
author2 Naser Hamzah Aljohani
format E-Thesis
publishDate 2015
institution Swansea University
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
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description Membrane processes have many industrial applications such as desalination, water treatment, biotechnology, food industry, pharmaceutical and power generation. The advantages of membrane processes include high selectivity, low operating costs and energy consumption. Membrane charge plays an important role in the membrane separation of ionic species. Therefore, understanding the interaction between ions and membrane charge is essential to improve the performance of the separation. This interaction is a function of pH concentration and depends on membrane type. The objective of this thesis was to investigate the role of membrane charge in separation of ionic species. Therefore the first step is to characterise membrane charge and then using the knowledge obtained along with separation data to gain insight on the mechanism governing the separation process of charged species by NF membranes. Finally correlations between membrane charge characterisation and separation process were achieved. The aim of creating such correlations is to reduce the amount of experimental work (only characterisation needed) required to evaluate the separation efficiency of a NF membrane either in a single salt system or mixtures which in turn saves time, labour work and money. The result obtained confirms the role of membrane charge in the separation of ionic species and provides insight into the mechanism of separation in NF membranes. In fact full explanations and quantitative analysis of the role of membrane charge was achieved in this thesis. To sum up, the knowledge obtained in this thesis is important for researchers and process engineers in industries such as desalination and water treatment plant as this helps to increase the efficiency of these plants and promote the use of membrane technology in the process industries. This can be done by right choice of membranes which fit the purpose and control of the feed parameters such as pH and concentration to maximize the efficiency.
published_date 2015-12-31T04:36:22Z
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