Modeling of the fouling of inside-out hollow fiber UF membranes
| Autor: | Si-qing Xia, Xudong Wang, Lei Wang, Xiaorong Meng, Danxi Huang, Yongtao Lv |
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| Rok vydání: | 2016 |
| Předmět: |
Chromatography
Fouling Chemistry Membrane fouling Ultrafiltration 02 engineering and technology 010501 environmental sciences 021001 nanoscience & nanotechnology 01 natural sciences Membrane technology law.invention Membrane Chemical engineering law Permeate flux Fiber 0210 nano-technology Filtration 0105 earth and related environmental sciences Water Science and Technology |
| Zdroj: | Water Supply. 17:300-310 |
| ISSN: | 1607-0798 1606-9749 |
| DOI: | 10.2166/ws.2016.137 |
| Popis: | Membrane processes often experience a decline in the permeate flux or an increase in the operating pressure from membrane fouling. A mathematical model that describes the fouling of inside-out hollow fiber ultrafiltration (UF) membranes was derived from hydrodynamic equations coupled with the theory of depth filtration. The correlation predictions obtained in this study are simpler, as the effect of membrane characteristics, water recovery, and membrane washing processes on UF membrane fouling were expressed using a single parameter: the membrane blocking coefficient. Membrane filtration tests were conducted using diluted paper industry wastewater in a constant-pressure and constant-current operational mode. The effects of different operating conditions, such as water recovery and cleaning methods, and membrane characteristics, on the membrane blocking coefficient were evaluated. The predictive capability of the proposed model was excellent, according to a comparison of the experimental results and model simulations. |
| Databáze: | OpenAIRE |
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