作　　者： ; ; ; ; ;

机构地区： 华南理工大学轻工与食品学院轻化工研究所

出　　处： 《海洋科学进展》 2005年第B12期36-40,共5页

摘　　要： 以硫酸多糖为分离对象，通过对膜通量、截留率、膜通量衰减程度和膜的清洗恢复率等参数的测定，考察了外加直流电场作用下超滤膜的分离性能。结果表明，外加电场下膜通量和截留率都有所提高，而膜通量衰减程度分别由41.86％降低到19.51％，而膜通量的恢复率可达到91．57％。采用外加电场技术可较大地改善膜的抗污染性能。 The performance of ultrafiltration membrane of sulfated polysaccharide was investigated by determining the membrane parameters including membrane flux, membrane retention ratio, decline in membrane flux and membrane recovery coefficient. It is shown from the determination results that the membrane flux and membrane retention ratio in the presence of an external electric field incresed, the decline in membrane flux decreased from 41.86 % to 19.51 %, and the membrane recovery coefficient increased to 91.57 %. Therefore, the antifouling property of ultrafiltration membrane can be significantly improved by applying an external electric field.

关 键 词： 外加电场 超滤 硫酸多糖

领　　域： [理学] [理学]