Studies in vacuum membrane distillation with flat membranes

详细信息    查看全文

• 作者：Lin Li ; Kamalesh K. Sirkar ; ^{sirkar@njit.edu}
• 关键词：Vacuum membrane distillation ; PVDF and ePTFE membranes ; Knudsen ; diffusion and dusty-gas models ; Membrane transfer coefficients ; Salt ; leakage
• 刊名：Journal of Membrane Science
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：523
• 期：Complete
• 页码：225-234
• 全文大小：1032 K
• 卷排序：523

文摘

Vacuum membrane distillation was investigated using many PVDF and ePTFE membranes. The range of membrane pore size, thickness and porosity were: 0.05–0.45 μm, 23–125 μm, 0.7–0.8. Brine inlet pressure and membrane LEP values were measured for 1 wt% saline water. Resistances of feed brine and membrane were isolated for different vacuum levels. Both Knudsen diffusion and Dusty-Gas models predicted membrane resistances well.