Effect of pH and ionic strength on membrane flux in the separation of escherichia coli by using cross-flow microfiltration

Recently, cross-flow microfiltration has been used to separate cells in continuous fermentation processes. The main objective of this study is to investigate the effect of pH and ionic strength on membrane flux during the separation of Escherichia coli. In order to achieve the objective of the study...

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Main Author: Ab Aziz, Nadira
Format: Undergraduates Project Papers
Language:English
Published: 2010
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/3292/
http://umpir.ump.edu.my/id/eprint/3292/1/CD5879_NADIRA_AB_AZIZ.pdf
id ump-3292
recordtype eprints
spelling ump-32922015-03-03T08:00:22Z http://umpir.ump.edu.my/id/eprint/3292/ Effect of pH and ionic strength on membrane flux in the separation of escherichia coli by using cross-flow microfiltration Ab Aziz, Nadira TP Chemical technology Recently, cross-flow microfiltration has been used to separate cells in continuous fermentation processes. The main objective of this study is to investigate the effect of pH and ionic strength on membrane flux during the separation of Escherichia coli. In order to achieve the objective of the study, hollow fibre membrane with molecular pore size of 0.2µm and surface area of 110 cm2 was used as the filter media. The experiment was carried out at a constant transmembrane pressure of 0.8 bar by varying five different pH values, ranging from pH 4.5 to 8.5 and five different concentration of salt, ranging from 0.1M to 0.5M. From this study, it is found that pH 6.5 with low concentration of salt was the best condition for the separation of E.coli. Increasing in pH increased the permeate flux, while high concentration of salt decreased the permeate flux. As a conclusion, the membrane used in this experiment can be used in the fermentation of E.coli for cell recycling because pH 6.5 is the optimum condition for fermentation of E.coli in its fermentation broth. 2010-04 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/3292/1/CD5879_NADIRA_AB_AZIZ.pdf Ab Aziz, Nadira (2010) Effect of pH and ionic strength on membrane flux in the separation of escherichia coli by using cross-flow microfiltration. Faculty of Chemical & Natural Resources Engineering , Universiti Malaysia Pahang .
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Ab Aziz, Nadira
Effect of pH and ionic strength on membrane flux in the separation of escherichia coli by using cross-flow microfiltration
description Recently, cross-flow microfiltration has been used to separate cells in continuous fermentation processes. The main objective of this study is to investigate the effect of pH and ionic strength on membrane flux during the separation of Escherichia coli. In order to achieve the objective of the study, hollow fibre membrane with molecular pore size of 0.2µm and surface area of 110 cm2 was used as the filter media. The experiment was carried out at a constant transmembrane pressure of 0.8 bar by varying five different pH values, ranging from pH 4.5 to 8.5 and five different concentration of salt, ranging from 0.1M to 0.5M. From this study, it is found that pH 6.5 with low concentration of salt was the best condition for the separation of E.coli. Increasing in pH increased the permeate flux, while high concentration of salt decreased the permeate flux. As a conclusion, the membrane used in this experiment can be used in the fermentation of E.coli for cell recycling because pH 6.5 is the optimum condition for fermentation of E.coli in its fermentation broth.
format Undergraduates Project Papers
author Ab Aziz, Nadira
author_facet Ab Aziz, Nadira
author_sort Ab Aziz, Nadira
title Effect of pH and ionic strength on membrane flux in the separation of escherichia coli by using cross-flow microfiltration
title_short Effect of pH and ionic strength on membrane flux in the separation of escherichia coli by using cross-flow microfiltration
title_full Effect of pH and ionic strength on membrane flux in the separation of escherichia coli by using cross-flow microfiltration
title_fullStr Effect of pH and ionic strength on membrane flux in the separation of escherichia coli by using cross-flow microfiltration
title_full_unstemmed Effect of pH and ionic strength on membrane flux in the separation of escherichia coli by using cross-flow microfiltration
title_sort effect of ph and ionic strength on membrane flux in the separation of escherichia coli by using cross-flow microfiltration
publishDate 2010
url http://umpir.ump.edu.my/id/eprint/3292/
http://umpir.ump.edu.my/id/eprint/3292/1/CD5879_NADIRA_AB_AZIZ.pdf
first_indexed 2023-09-18T21:57:28Z
last_indexed 2023-09-18T21:57:28Z
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