Fouling of ultrafiltration membrane during adsorption of long chain fatty acid in glycerine solutions
Membrane fouling caused by the adsorption of fatty acids limits the application of membrane technology in oleochemical industry especially for the pretreatment of glycerin-rich solution. The aim of the work presented in this paper was to understand the adsorptive fouling of palm oil based fatty acid...
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Universiti Kebangsaan Malaysia
2013
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| Online Access: | http://journalarticle.ukm.my/6287/1/16_Abdul_Wahab.pdf http://journalarticle.ukm.my/6287/ http://www.ukm.my/jsm/ |
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| author | Abdul Wahab Mohammad, Indok Nurul Hasyimah Mohd Amin, |
| author_facet | Abdul Wahab Mohammad, Indok Nurul Hasyimah Mohd Amin, |
| author_sort | Abdul Wahab Mohammad, |
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| content_provider | Universiti Kebangsaan Malaysia |
| content_source | UKM Journal Article Repository |
| continent | Asia |
| country | Malaysia |
| description | Membrane fouling caused by the adsorption of fatty acids limits the application of membrane technology in oleochemical industry especially for the pretreatment of glycerin-rich solution. The aim of the work presented in this paper was to understand the adsorptive fouling of palm oil based fatty acid on ultrafiltration membranes. The influence of solution pH, molecular weight cut-off (MWCO) and hydrophobicity of the membrane were studied. Oleic acid was used as a foulant, representing the long chain palm oil based fatty acid in glycerol−water solution. The outer membrane exposed to the mixtures for 6 h without pressure. The stirring speed was set at 300 rpm and polyethersulfone (PES) membranes with MWCO of 5, 20 and 25 kDa were used. The adsorptive fouling was determined using the relative flux reduction (RFR) method. It is demonstrated in this study that PES membranes are susceptible to the deposition of fatty acids on the membrane surface and pores. The fouling phenomenon at low pH is more severe than that of high pH due to the attractive force between solutes and the membrane. The PES membranes after adsorption were characterized by contact angle and Fourier transform infrared (FTIR), while the surface was visualized with scanning electron microscopy (SEM). |
| format | Article |
| id | my-ukm.journal-6287 |
| institution | Universiti Kebangsaan Malaysia |
| language | en |
| publishDate | 2013 |
| publisher | Universiti Kebangsaan Malaysia |
| record_format | eprints |
| spelling | my-ukm.journal-62872016-12-14T06:40:44Z http://journalarticle.ukm.my/6287/ Fouling of ultrafiltration membrane during adsorption of long chain fatty acid in glycerine solutions Abdul Wahab Mohammad, Indok Nurul Hasyimah Mohd Amin, Membrane fouling caused by the adsorption of fatty acids limits the application of membrane technology in oleochemical industry especially for the pretreatment of glycerin-rich solution. The aim of the work presented in this paper was to understand the adsorptive fouling of palm oil based fatty acid on ultrafiltration membranes. The influence of solution pH, molecular weight cut-off (MWCO) and hydrophobicity of the membrane were studied. Oleic acid was used as a foulant, representing the long chain palm oil based fatty acid in glycerol−water solution. The outer membrane exposed to the mixtures for 6 h without pressure. The stirring speed was set at 300 rpm and polyethersulfone (PES) membranes with MWCO of 5, 20 and 25 kDa were used. The adsorptive fouling was determined using the relative flux reduction (RFR) method. It is demonstrated in this study that PES membranes are susceptible to the deposition of fatty acids on the membrane surface and pores. The fouling phenomenon at low pH is more severe than that of high pH due to the attractive force between solutes and the membrane. The PES membranes after adsorption were characterized by contact angle and Fourier transform infrared (FTIR), while the surface was visualized with scanning electron microscopy (SEM). Universiti Kebangsaan Malaysia 2013-06 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/6287/1/16_Abdul_Wahab.pdf Abdul Wahab Mohammad, and Indok Nurul Hasyimah Mohd Amin, (2013) Fouling of ultrafiltration membrane during adsorption of long chain fatty acid in glycerine solutions. Sains Malaysiana, 42 (6). pp. 827-836. ISSN 0126-6039 http://www.ukm.my/jsm/ |
| spellingShingle | Abdul Wahab Mohammad, Indok Nurul Hasyimah Mohd Amin, Fouling of ultrafiltration membrane during adsorption of long chain fatty acid in glycerine solutions |
| title | Fouling of ultrafiltration membrane during adsorption of long
chain fatty acid in glycerine solutions |
| title_full | Fouling of ultrafiltration membrane during adsorption of long
chain fatty acid in glycerine solutions |
| title_fullStr | Fouling of ultrafiltration membrane during adsorption of long
chain fatty acid in glycerine solutions |
| title_full_unstemmed | Fouling of ultrafiltration membrane during adsorption of long
chain fatty acid in glycerine solutions |
| title_short | Fouling of ultrafiltration membrane during adsorption of long
chain fatty acid in glycerine solutions |
| title_sort | fouling of ultrafiltration membrane during adsorption of long
chain fatty acid in glycerine solutions |
| url | http://journalarticle.ukm.my/6287/1/16_Abdul_Wahab.pdf http://journalarticle.ukm.my/6287/ http://www.ukm.my/jsm/ |
| url_provider | http://journalarticle.ukm.my/ |