Abstract
Polyvinylidene fluoride (PVDF) hollow fiber membrane is used as membrane material, NaCl solutions with concentrations of 5%, 15% and 25% are treated by direct contact membrane distillation. Orthogonal experiment is used to optimize the operation conditions, and the result show that value of the permeate flux (J) could achieve maximum value of 12.599 kg/(m2•h) when the inlet temperature of liquid side (T1) is 80℃, inlet temperature of osmotic side (T3) is 20℃, and flow rate (Q) is 100 L/h. Gained output ratio (GOR) could be 13.775 when T1 is 80℃, T3 is 35℃ and Q is 40 L/h. The salt rejection ratio all is more than 99.9%. The result of single factor experiment show that J is raised with the increase of T1 and Q, but decreased with the increase of T3. GOR is increased with the increase of T1 and T3, but decreased with the increase of the Q. The research indicate that membrane distillation technology has a good applied prospect of treat saline solution.
Original language | English |
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Pages (from-to) | 246-251 |
Number of pages | 6 |
Journal | Huagong Xuebao/CIESC Journal |
Volume | 69 |
DOIs | |
Publication status | Published - 1 Dec 2018 |
Keywords
- Desalination
- Design
- Direct contact membrane distillation
- Distillation
- PVDF hollow fiber membrane
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering