Hybrid submerged membrane system with sorption media in suspension
The performance of the hybrid powdered activated carbon (PAC)-submerged membrane system for trace organics treatment from water was studied through both experimental studies and mathematical simulations. The PAC adsorption process optimization was studied by investigating the effects of PAC particle...
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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2008
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| Online Access: | https://hdl.handle.net/10356/12061 |
| _version_ | 1826125157271339008 |
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| author | Jia, Yue |
| author2 | Wang Rong |
| author_facet | Wang Rong Jia, Yue |
| author_sort | Jia, Yue |
| collection | NTU |
| description | The performance of the hybrid powdered activated carbon (PAC)-submerged membrane system for trace organics treatment from water was studied through both experimental studies and mathematical simulations. The PAC adsorption process optimization was studied by investigating the effects of PAC particle size, continuous/intermittent air bubbling at different bubbling rates and additional factors introduced by air bubbling on the adsorption efficiency through single solute batch adsorption tests on atrazine removal. The adsorption kinetics coefficients (liquid film) and (surface diffusion) were quantified through both a simple approach of film mass transfer and the complex homogeneous surface diffusion model (HSDM) respectively based on the single solute batch test data. Mathematical models have been developed to describe PAC adsorption in both a bubbling mixed single-stage continuous process and a two-stage countercurrent PAC-submerged hollow fiber membrane system under batch and continuous dosing of PAC. The developed models were verified and then used to predict the product water quality at different operation conditions such as different air bubbling rates, carbon dosages and water fluxes. Finally, a preliminary study of novel in-situ regeneration method for saturated PACs in a hybrid submerged membrane system using photocatalytic oxidation (TiO2) was made and confirmed experimentally. |
| first_indexed | 2024-10-01T06:32:06Z |
| format | Thesis |
| id | ntu-10356/12061 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:32:06Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | ntu-10356/120612023-03-03T19:26:49Z Hybrid submerged membrane system with sorption media in suspension Jia, Yue Wang Rong Anthony Gordon Fane School of Civil and Environmental Engineering DRNTU::Engineering::Environmental engineering::Water treatment The performance of the hybrid powdered activated carbon (PAC)-submerged membrane system for trace organics treatment from water was studied through both experimental studies and mathematical simulations. The PAC adsorption process optimization was studied by investigating the effects of PAC particle size, continuous/intermittent air bubbling at different bubbling rates and additional factors introduced by air bubbling on the adsorption efficiency through single solute batch adsorption tests on atrazine removal. The adsorption kinetics coefficients (liquid film) and (surface diffusion) were quantified through both a simple approach of film mass transfer and the complex homogeneous surface diffusion model (HSDM) respectively based on the single solute batch test data. Mathematical models have been developed to describe PAC adsorption in both a bubbling mixed single-stage continuous process and a two-stage countercurrent PAC-submerged hollow fiber membrane system under batch and continuous dosing of PAC. The developed models were verified and then used to predict the product water quality at different operation conditions such as different air bubbling rates, carbon dosages and water fluxes. Finally, a preliminary study of novel in-situ regeneration method for saturated PACs in a hybrid submerged membrane system using photocatalytic oxidation (TiO2) was made and confirmed experimentally. Doctor of Philosophy (CEE) 2008-09-25T06:36:03Z 2008-09-25T06:36:03Z 2006 2006 Thesis Jia, Y. (2006). Hybrid submerged membrane system with sorption media in suspension. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/12061 10.32657/10356/12061 en Nanyang Technological University 231 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Environmental engineering::Water treatment Jia, Yue Hybrid submerged membrane system with sorption media in suspension |
| title | Hybrid submerged membrane system with sorption media in suspension |
| title_full | Hybrid submerged membrane system with sorption media in suspension |
| title_fullStr | Hybrid submerged membrane system with sorption media in suspension |
| title_full_unstemmed | Hybrid submerged membrane system with sorption media in suspension |
| title_short | Hybrid submerged membrane system with sorption media in suspension |
| title_sort | hybrid submerged membrane system with sorption media in suspension |
| topic | DRNTU::Engineering::Environmental engineering::Water treatment |
| url | https://hdl.handle.net/10356/12061 |
| work_keys_str_mv | AT jiayue hybridsubmergedmembranesystemwithsorptionmediainsuspension |