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[1]孙朋飞,谢亚平,杨刚,等.陶瓷膜超滤过程研究及模型分析[J].南京工业大学学报(自然科学版),2016,38(06):81-85.[doi:10.3969/j.issn.1671-7627.2016.06.014]
 SUN Pengfei,XIE Yaping,YANG Gang,et al.Process of ceramic ultrafiltration membrane and modeling analysis[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2016,38(06):81-85.[doi:10.3969/j.issn.1671-7627.2016.06.014]
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陶瓷膜超滤过程研究及模型分析()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
38
期数:
2016年06期
页码:
81-85
栏目:
出版日期:
2016-11-15

文章信息/Info

Title:
Process of ceramic ultrafiltration membrane and modeling analysis
文章编号:
1671-7627(2016)06-0081-05
作者:
孙朋飞谢亚平杨刚邢卫红
南京工业大学 化工学院 材料化学工程国家重点实验室,江苏 南京 210009
Author(s):
SUN Pengfei XIE Yaping YANG Gang XING Weihong
State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
关键词:
陶瓷膜 超滤 聚乙二醇 模型
Keywords:
ceramic membrane ultrafiltration polyethylene glycol model
分类号:
TQ028.8
DOI:
10.3969/j.issn.1671-7627.2016.06.014
文献标志码:
A
摘要:
采用截留相对分子质量为8 000的陶瓷膜,对聚乙二醇(PEG)溶液进行超滤实验,考察不同操作条件对陶瓷膜超滤过程分离性能的影响及膜污染机制,利用细孔模型对陶瓷超滤膜进行模拟表征,得出等效孔径和等效膜厚,并运用组合模型对膜污染内在机制进行分析。结果表明:细孔模型能较好地运用于陶瓷超滤膜微观结构的表征,通过对不同相对分子质量PEG超滤过程的拟合分析得出了膜结构参数; 在操作压力为0.3 MPa、膜面流速为0.5 m/s条件下,PEG 20 000的陶瓷膜超滤过程污染最严重,采用完全堵塞和滤饼过滤组合模型描述该过程的通量衰减趋势与实验值吻合良好。
Abstract:
The polyethylene glycol(PEG)removal experiments with different molecular weights were carried out by molecular weight cut off(MWCO)8 000 ceramic membrane to investigate the effects on removal of different molecular weights PEG and the fouling mechanism. Pore model was modeled to characterize the effective pore diameter and thickness of the membrane, and the combined fouling model was borrowed to explain the internal factors of ultrafiltration fouling mechanism. Results showed that the pore model was simulated and well characterized for the equivalent pore size of the membrane. The fitting analysis of the membrane structure parameters was obtained through the ultrafiltration process of different molecular weights PEG. The cake-complete blocking model fitted accurately the experimental data for a TMP of 0.3 MPa and a crossflow velocity of 0.5 m/s.

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备注/Memo

备注/Memo:
收稿日期:2015-04-13
基金项目:国家科技支撑计划(2013BAE11B03)
作者简介:孙朋飞(1988—),男,河南淇县人,硕士,主要研究方向为膜分离; 杨刚(联系人),教授,E-mail:yanggang@njtech.edu.cn.
引用本文:孙朋飞,谢亚平,杨刚,等.陶瓷膜超滤过程研究及模型分析[J].南京工业大学学报(自然科学版),2016,38(6):81-85..
更新日期/Last Update: 2016-12-20