Influence of microporous membrane properties on the desalination performance in direct contact membrane distillation
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- 作者：Lin Li ; Kamalesh K. Sirkar ; sirkar@njit.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Direct contact membrane distillation ; PVDF and ePTFE membranes ; Wilson Plot ; Membrane tortuosity ; Knudsen diffusion/transition regime
- 刊名：Journal of Membrane Science
- 出版年：2016
- 出版时间：1 September 2016
- 年：2016
- 卷：513
- 期：Complete
- 页码：280-293
- 全文大小：2497 K
文摘
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Direct contact membrane distillation was studied with PVDF and ePTFE membranes.
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Pore size, thickness and porosity were respectively 0.05–0.45 µm, 23–125 µm, 0.7–0.8.
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Membrane tortuosity was measured by gas diffusion through water-wet membrane pores.
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Membrane resistance and two boundary layer resistances were isolated by Wilson plot.
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Membrane resistances were predicted by Knudsen diffusion/transitional regime model.