Experimental study on saline solution by direct contact membrane distillation

LIU Yangjiu; HAN Jitian; WANG Yunshan; TIEN-CHIEN Jen

doi:10.11949/j.issn.0438-1157.20181135

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Experimental study on saline solution by direct contact membrane distillation

更新时间：2025-12-10

- Experimental study on saline solution by direct contact membrane distillation
- CIESC Journal Issue S2, Pages: 246-251(2018)
- 作者机构：
  
  1. 山东大学能源与动力工程学院,山东,济南,250061
  2. 约翰内斯堡大学机械工程学系,约翰内斯堡,南非
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20181135
  CLC： Q028.8
- Online First：31 December 2018，
  
  Published：31 December 2018
- 稿件说明：
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LIU Yangjiu, HAN Jitian, WANG Yunshan, et al. Experimental study on saline solution by direct contact membrane distillation[J]. CIESC Journal, 2018, (S2): 246-251.
DOI：

LIU Yangjiu, HAN Jitian, WANG Yunshan, et al. Experimental study on saline solution by direct contact membrane distillation[J]. CIESC Journal, 2018, (S2): 246-251. DOI： 10.11949/j.issn.0438-1157.20181135.

摘要

采用聚偏氟乙烯（PVDF）中空纤维膜作为膜材料，利用直接接触式膜蒸馏法处理质量分数分别为5%、15%和25%的NaCl溶液；使用正交实验方法对操作条件进行优化设计，研究表明当料液侧入口温度T1为80℃，渗透液侧入口温度T3为20℃，流量100 L/h时膜通量最大，可达12.599 kg/（m2·h）；当料液侧入口温度T1为80℃，渗透液侧入口温度T3为35℃，流量Q为40 L/h时造水比最高，可达13.775，截留率均可达到99.9%以上；单因素实验结果表明膜通量随着T1和Q的增大而增加，随着T3的升高而降低；造水比随着T1、T3的升高而增加，随着Q的增加而降低。研究表明膜蒸馏技术处理含盐溶液具有很好的应用前景。

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.

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