Dynamic Modeling of Fouling in Reverse Osmosis Membranes
文献类型：期刊论文
| 作者 | Ling BW(凌博闻)2,3; Xie, Peng1,3; Ladner, David1,3; Battiato, Ilenia2,3 |
| 刊名 | MEMBRANES
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 11期号:5页码:19 |
| 关键词 | RO membrane numerical model OpenFoam |
| DOI | 10.3390/membranes11050349 |
| 通讯作者 | Battiato, Ilenia(ibattiat@stanford.edu) |
| 英文摘要 | During reverse osmosis (RO) membrane filtration, performance is dramatically affected by fouling, which concurrently decreases the permeate flux while increasing the energy required to operate the system. Comprehensive design and optimization of RO systems are best served by an understanding of the coupling between membrane shape, local flow field, and fouling; however, current studies focus exclusively on simplified steady-state models that ignore the dynamic coupling between fluid flow, solute transport, and foulant accumulation. We developed a customized solver (SUMs: Stanford University Membrane Solver) under the open source finite volume simulator OpenFOAM to solve transient Navier-Stokes, advection-diffusion, and adsorption-desorption equations for foulant accumulation. We implemented two permeate flux reduction models at the membrane boundary: the resistance-in-series (RIS) model and the effective-pressure-drop (EPD) model. The two models were validated against filtration experiments by comparing the equilibrium flux, pressure drop, and fouling pattern on the membrane. Both models not only predict macroscopic quantities (e.g., permeate flux and pressure drop) but also the fouling pattern developed on the membrane, with a good match with experimental results. Furthermore, the models capture the temporal evolution of foulant accumulation and its coupling with flux reduction. |
| 分类号 | 二类 |
| WOS关键词 | CONCENTRATION POLARIZATION ; SURFACE-PROPERTIES ; LANDFILL LEACHATE ; GYPSUM SCALE ; FLUX ; DESALINATION ; SPACERS ; WATER ; FLOW ; ULTRAFILTRATION |
| 资助项目 | National Alliance for Water Innovation (NAWI)[1242861-12-SDGBM] ; National Science Foundation (NSF)[1533874] |
| WOS研究方向 | Biochemistry & Molecular Biology ; Chemistry ; Engineering ; Materials Science ; Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000654299900001 |
| 资助机构 | National Alliance for Water Innovation (NAWI) ; National Science Foundation (NSF) |
| 其他责任者 | Battiato, Ilenia |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/86792]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.Clemson Univ, Dept Environm Engn & Earth Sci, Clemson, SC 29634 USA 2.Stanford Univ, Energy Resources Engn, Stanford, CA 94305 USA; 3.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Ling BW,Xie, Peng,Ladner, David,et al. Dynamic Modeling of Fouling in Reverse Osmosis Membranes[J]. MEMBRANES,2021,11(5):19. |
| APA | 凌博闻,Xie, Peng,Ladner, David,&Battiato, Ilenia.(2021).Dynamic Modeling of Fouling in Reverse Osmosis Membranes.MEMBRANES,11(5),19. |
| MLA | 凌博闻,et al."Dynamic Modeling of Fouling in Reverse Osmosis Membranes".MEMBRANES 11.5(2021):19. |
入库方式： OAI收割
来源：力学研究所
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