【摘要】 研究了聚偏氟乙烯(PVDF)微滤膜截留丙球蛋白过程中,操作条件、溶液性质等因素对膜截留性能的影响。随着跨膜压差从0.02MPa上升到0.12MPa,膜对蛋白的截留率从31.5%上升到94.4%;运行时间延长、浓缩倍数上升都引起截留率增加;溶液pH值的变化对膜的截留率和通量有显著影响,同时溶液中盐度增加对膜性能亦有影响。更多还原

【Abstract】 The effects of the operating conditions and solution properties on retention characteristics of γ-globulin by polyvinylidene fluoride (PVDF) hollow fiber membrane was studied. The rejection of γ-globulin increased to 94.4% from 31.5% when the operating pressure was raised to 0.12 MPa from 0.02MPa; the rejection was increasing with operation time and concentration times rising also; the pH of solution influenced remarkably the characteristics of membrane, meanwhile the concentration of salt displays the effects on the performance of PVDF membrane.更多还原