Pressure driven inside feed (PDI) hollow fibre filtration: Optimizing the geometry and operating parameters
Direct-flow filtration combines a filtration cycle operating in dead-end mode with regular intermittent backwashes. Such filtration module is achieved by efficiently capping one end of the crossflow device so that all the fluid is forced to pass through the membrane walls. This paper focuses on the...
| Main Authors: | , , |
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| Format: | Journal article |
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Elsevier
2017
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| _version_ | 1826260074081812480 |
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| author | Xu, Q Pearce, G Field, R |
| author_facet | Xu, Q Pearce, G Field, R |
| author_sort | Xu, Q |
| collection | OXFORD |
| description | Direct-flow filtration combines a filtration cycle operating in dead-end mode with regular intermittent backwashes. Such filtration module is achieved by efficiently capping one end of the crossflow device so that all the fluid is forced to pass through the membrane walls. This paper focuses on the operational considerations and design aspects of the direct-flow filtration membrane modules, specifically pressure driven inside feed (PDI) format. PDI is commonly used since it permits effective backwash and long term stability. The axial dependence of the transmembrane pressure (TMP) and the cumulative filtration volume is studied under non-fouling conditions. Geometrical parameters including fibre radius, fibre wall thickness, fibre length, module void fraction and imposed average flux are varied over a broad range values encompassing the values applied in today’s water industry. Two performance parameters are introduced: the module productivity parameter, and the filtration uniformity factor. Suggested design ranges for fibre diameter, fibre length and packing density are given. Taguchi’s method is applied to determine how much each parameter contributes to the overall filtration performance. |
| first_indexed | 2024-03-06T18:59:51Z |
| format | Journal article |
| id | oxford-uuid:1327155a-c5a8-4f3c-833f-7a67d6669ef9 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T18:59:51Z |
| publishDate | 2017 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:1327155a-c5a8-4f3c-833f-7a67d6669ef92022-03-26T10:12:09ZPressure driven inside feed (PDI) hollow fibre filtration: Optimizing the geometry and operating parametersJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:1327155a-c5a8-4f3c-833f-7a67d6669ef9Symplectic Elements at OxfordElsevier2017Xu, QPearce, GField, RDirect-flow filtration combines a filtration cycle operating in dead-end mode with regular intermittent backwashes. Such filtration module is achieved by efficiently capping one end of the crossflow device so that all the fluid is forced to pass through the membrane walls. This paper focuses on the operational considerations and design aspects of the direct-flow filtration membrane modules, specifically pressure driven inside feed (PDI) format. PDI is commonly used since it permits effective backwash and long term stability. The axial dependence of the transmembrane pressure (TMP) and the cumulative filtration volume is studied under non-fouling conditions. Geometrical parameters including fibre radius, fibre wall thickness, fibre length, module void fraction and imposed average flux are varied over a broad range values encompassing the values applied in today’s water industry. Two performance parameters are introduced: the module productivity parameter, and the filtration uniformity factor. Suggested design ranges for fibre diameter, fibre length and packing density are given. Taguchi’s method is applied to determine how much each parameter contributes to the overall filtration performance. |
| spellingShingle | Xu, Q Pearce, G Field, R Pressure driven inside feed (PDI) hollow fibre filtration: Optimizing the geometry and operating parameters |
| title | Pressure driven inside feed (PDI) hollow fibre filtration: Optimizing the geometry and operating parameters |
| title_full | Pressure driven inside feed (PDI) hollow fibre filtration: Optimizing the geometry and operating parameters |
| title_fullStr | Pressure driven inside feed (PDI) hollow fibre filtration: Optimizing the geometry and operating parameters |
| title_full_unstemmed | Pressure driven inside feed (PDI) hollow fibre filtration: Optimizing the geometry and operating parameters |
| title_short | Pressure driven inside feed (PDI) hollow fibre filtration: Optimizing the geometry and operating parameters |
| title_sort | pressure driven inside feed pdi hollow fibre filtration optimizing the geometry and operating parameters |
| work_keys_str_mv | AT xuq pressuredriveninsidefeedpdihollowfibrefiltrationoptimizingthegeometryandoperatingparameters AT pearceg pressuredriveninsidefeedpdihollowfibrefiltrationoptimizingthegeometryandoperatingparameters AT fieldr pressuredriveninsidefeedpdihollowfibrefiltrationoptimizingthegeometryandoperatingparameters |