Vibratory shear enhanced membrane process and its application in starch wastewater recycle
Membrane application in wastewater is gaining significant popularity. Selecting the right membrane and filtration technique is an important consideration to ensure a successful system development and long term performance. A new type of membrane filtration technology known as ‘Vibratory Shear Enhanc...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Prince of Songkla University
2002-11-01
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| Series: | Songklanakarin Journal of Science and Technology (SJST) |
| Subjects: | |
| Online Access: | http://www.sjst.psu.ac.th/journal/24_Suppl_membrane/16wastewater.pd.pdf |
| _version_ | 1819157927351549952 |
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| author | Kazi Sarwar Hasan Chettiyappan Visvanathan Prapan Ariyamethee Sumaporn Chantaraaumporn Pongchakas Moongkhumklang |
| author_facet | Kazi Sarwar Hasan Chettiyappan Visvanathan Prapan Ariyamethee Sumaporn Chantaraaumporn Pongchakas Moongkhumklang |
| author_sort | Kazi Sarwar Hasan |
| collection | DOAJ |
| description | Membrane application in wastewater is gaining significant popularity. Selecting the right membrane and filtration technique is an important consideration to ensure a successful system development and long term performance. A new type of membrane filtration technology known as ‘Vibratory Shear Enhanced Process’ (VSEP) is introduced in this paper with some test results that has been conducted with VSEP pilot unit to recycle starch wastewater. Conventional cross flow membrane process used in wastewater application always led to rapid fouling. This loss in throughput capacity is primarily due to the formation of a layer that builds up naturally on the membranes surface during the filtration process. In addition to cutting down on the flux performance of the membrane, this boundary or gel layer acts as a secondary membrane reducing the native design selectivity of the membrane in use. This inability to handle the buildup of solids has also limited the use of membranes to low-solids feed streams. In a VSEP system, an additional shear wave produced by the membrane’s vibration cause solids and foulants to be lifted off the membrane surface and remixed with the bulk material flowing through the membrane stack. This high shear processing exposes the membrane pores for maximum throughput that is typically between 3 to10 times the throughput of conventional cross-flow systems. The short term results with raw starch wastewater shows very stable flux rate of 110 lmh using the VSEP system and selecting the PVDF ultrafiltration membrane with no pre-filtration. |
| first_indexed | 2024-12-22T16:16:32Z |
| format | Article |
| id | doaj.art-cd2f24f8691544ef86e9e65896dfe303 |
| institution | Directory Open Access Journal |
| issn | 0125-3395 |
| language | English |
| last_indexed | 2024-12-22T16:16:32Z |
| publishDate | 2002-11-01 |
| publisher | Prince of Songkla University |
| record_format | Article |
| series | Songklanakarin Journal of Science and Technology (SJST) |
| spelling | doaj.art-cd2f24f8691544ef86e9e65896dfe3032022-12-21T18:20:21ZengPrince of Songkla UniversitySongklanakarin Journal of Science and Technology (SJST)0125-33952002-11-0124Suppl.899906Vibratory shear enhanced membrane process and its application in starch wastewater recycleKazi Sarwar HasanChettiyappan VisvanathanPrapan AriyametheeSumaporn ChantaraaumpornPongchakas MoongkhumklangMembrane application in wastewater is gaining significant popularity. Selecting the right membrane and filtration technique is an important consideration to ensure a successful system development and long term performance. A new type of membrane filtration technology known as ‘Vibratory Shear Enhanced Process’ (VSEP) is introduced in this paper with some test results that has been conducted with VSEP pilot unit to recycle starch wastewater. Conventional cross flow membrane process used in wastewater application always led to rapid fouling. This loss in throughput capacity is primarily due to the formation of a layer that builds up naturally on the membranes surface during the filtration process. In addition to cutting down on the flux performance of the membrane, this boundary or gel layer acts as a secondary membrane reducing the native design selectivity of the membrane in use. This inability to handle the buildup of solids has also limited the use of membranes to low-solids feed streams. In a VSEP system, an additional shear wave produced by the membrane’s vibration cause solids and foulants to be lifted off the membrane surface and remixed with the bulk material flowing through the membrane stack. This high shear processing exposes the membrane pores for maximum throughput that is typically between 3 to10 times the throughput of conventional cross-flow systems. The short term results with raw starch wastewater shows very stable flux rate of 110 lmh using the VSEP system and selecting the PVDF ultrafiltration membrane with no pre-filtration.http://www.sjst.psu.ac.th/journal/24_Suppl_membrane/16wastewater.pd.pdfVSEPultrafiltration (UF)membrane fluxtransmembrane pressure (TMP)wastewater reuse |
| spellingShingle | Kazi Sarwar Hasan Chettiyappan Visvanathan Prapan Ariyamethee Sumaporn Chantaraaumporn Pongchakas Moongkhumklang Vibratory shear enhanced membrane process and its application in starch wastewater recycle Songklanakarin Journal of Science and Technology (SJST) VSEP ultrafiltration (UF) membrane flux transmembrane pressure (TMP) wastewater reuse |
| title | Vibratory shear enhanced membrane process and its application in starch wastewater recycle |
| title_full | Vibratory shear enhanced membrane process and its application in starch wastewater recycle |
| title_fullStr | Vibratory shear enhanced membrane process and its application in starch wastewater recycle |
| title_full_unstemmed | Vibratory shear enhanced membrane process and its application in starch wastewater recycle |
| title_short | Vibratory shear enhanced membrane process and its application in starch wastewater recycle |
| title_sort | vibratory shear enhanced membrane process and its application in starch wastewater recycle |
| topic | VSEP ultrafiltration (UF) membrane flux transmembrane pressure (TMP) wastewater reuse |
| url | http://www.sjst.psu.ac.th/journal/24_Suppl_membrane/16wastewater.pd.pdf |
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