He Gaohong   

Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates

Title : Director of R & D Center of Membrane Science and Technology

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Language:English

Paper Publications

Title of Paper:减压膜蒸馏法咸水淡化的实验研究

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Date of Publication:2003-09-17

Journal:海湖盐与化工

Volume:32

Issue:5

Page Number:10-14,28

ISSN No.:1673-6850

Key Words:蒸馏;聚丙烯膜;真空度;聚四氟乙烯膜

Abstract:以氯化钠水溶液为实验体系,采用平板聚丙烯(PP)膜,进行减压膜蒸馏实验研究,考察了盐水浓度、进料温度、冷侧真空度对膜渗透通量以及截留率的影响;并用聚四氟乙烯(PTFE)膜进行了冷侧真空度影响的实验.同时利用完全的(complete)努森-粘性流(Knudsen-viscous)过渡模型预测减压膜蒸馏的渗透通量.结果表明,进料温度和冷侧真空度对膜渗透通量的影响很大,而对截留率的影响不大;进料浓度在实验范围内对膜渗透通量以及截留率的影响都不大;膜的渗透通量随着膜孔径的增大而增加;PTFE膜的截留效果优于PP膜.渗透液水质分析说明减压膜蒸馏起到了良好的淡化效果.

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