直接接触式膜蒸馏用于处理含盐溶液的实验研究

doi:10.11949/j.issn.0438-1157.20181135

化工学报 ›› 2018, Vol. 69 ›› Issue (S2): 246-251.DOI: 10.11949/j.issn.0438-1157.20181135

直接接触式膜蒸馏用于处理含盐溶液的实验研究

刘羊九¹, 韩吉田¹, 王云山¹, 任天健²

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, 南非约翰内斯堡

收稿日期:2018-10-08 修回日期:2018-10-22 出版日期:2018-12-31 发布日期:2018-12-31
通讯作者: 韩吉田

Experimental study on saline solution by direct contact membrane distillation

LIU Yangjiu¹, HAN Jitian¹, WANG Yunshan¹, TIEN-CHIEN Jen²

1 School of Energy and Power Engineering, Shandong University, Jinan 250061, Shandong, China;
2 Mechanical Engineering Science Department, University of Johannesburg, Auckland Park 2006, South Africa

Received:2018-10-08 Revised:2018-10-22 Online:2018-12-31 Published:2018-12-31

摘要/Abstract

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.

中图分类号:

TQ028.8

刘羊九, 韩吉田, 王云山, 任天健. 直接接触式膜蒸馏用于处理含盐溶液的实验研究[J]. 化工学报, 2018, 69(S2): 246-251.

LIU Yangjiu, HAN Jitian, WANG Yunshan, TIEN-CHIEN Jen. Experimental study on saline solution by direct contact membrane distillation[J]. CIESC Journal, 2018, 69(S2): 246-251.

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直接接触式膜蒸馏用于处理含盐溶液的实验研究

Experimental study on saline solution by direct contact membrane distillation

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