磁化对四氧化三铁：聚丙烯腈膜在猪血溶液超滤性能中的影响。

Magnetization influence on the performance of ferrosoferric oxide: polyacrylonitrile membranes in ultrafiltration of pig blood solution.

作者信息

Huang Zheng-Qing, Guo Xing-Peng, Guo Chun-Liang, Zhang Zhi

机构信息

Department of Chemistry, Huazhong University of Science and Technology, 430074, Wuhan, People's Republic of China.

出版信息

Bioprocess Biosyst Eng. 2006 May;28(6):415-21. doi: 10.1007/s00449-006-0050-7. Epub 2006 Mar 3.

DOI:10.1007/s00449-006-0050-7

PMID:16514522

Abstract

Three kinds of membranes were prepared from suspensions containing polyacrylonitrile, dimethyl sulfoxide, polyethylene glycol and different amount of Fe3O4 by the phase inversion process. The rejection rate and the flux of membrane were investigated in the filtration of pig blood solution. SEM also studied the morphologies of fouled membranes. The permeate flux and the rejection rate decline fast in the initial several minutes and then change slowly. The magnetized membrane has a higher flux and a relative flux than the corresponding non-magnetized membrane. And the magnetized membrane containing about 3 wt% Fe3O4 has a prominent anti-fouling performance with above 52% relative flux. The results indicate that the magnetized ferrosoferric oxide-polyacrylonitrile membranes are promising in the recovery of blood proteins in the slaughterhouse effluents. In addition, the hydraulic resistance model explained results and the fouling mechanism was also given.

摘要

通过相转化法，由含有聚丙烯腈、二甲基亚砜、聚乙二醇和不同量四氧化三铁的悬浮液制备了三种膜。在猪血液溶液过滤过程中研究了膜的截留率和通量。扫描电子显微镜（SEM）也研究了污染膜的形态。渗透通量和截留率在最初几分钟内快速下降，然后缓慢变化。磁化膜比相应的未磁化膜具有更高的通量和相对通量。并且含有约3 wt%四氧化三铁的磁化膜具有突出的抗污染性能，相对通量高于52%。结果表明，磁化的四氧化三铁-聚丙烯腈膜在屠宰场废水中血液蛋白的回收方面具有前景。此外，给出了水力阻力模型解释结果以及污染机理。