CAJ | 학술논문

研究了操作压力和溶液组成(溶质浓度、pH值和水质硬度)对牛血清蛋白在超滤过程中发生的膜污染的影响,同时使用扫描电子显微镜观察了实验所用的超滤膜的结构.研究发现,在膜过滤的过程中,存在着极限膜通量,增大操作压力和进水中蛋白质浓度只能加速膜污染的速度,但不能增强最后的膜污染程度;增大溶液的pH值,以及减小水质硬度,都能够减轻蛋白质在超滤过程中的膜污染程度.
연구료조작압력화용액조성(용질농도、pH치화수질경도)대우혈청단백재초려과정중발생적막오염적영향,동시사용소묘전자현미경관찰료실험소용적초려막적결구.연구발현,재막과려적과정중,존재착겁한막통량,증대조작압력화진수중단백질농도지능가속막오염적속도,단불능증강최후적막오염정도;증대용액적pH치,이급감소수질경도,도능구감경단백질재초려과정중적막오염정도.
Effect of applied pressure and solution composition (solute concentration, pH and hardness) on mem-brane fouling during uhrafihration (UF) of bovine serum albumin (BSA) was systematically investigated.In addition, structure of the UF membrane used was imaged by the scanning electron microscope (SEM).It was found that (1) limiting flux existed during the membrane filtration process; (2) increasing the applied pressure and protein concentration only increased the fouling rate but did not enhance the extent of membrane fouling; (3) membrane fouling was alleviated while pH was increased and hardness was decreased.