压力驱动膜过程中的微滤是分离均相混合物的化工单元操作,随着过程的进行,将在膜表面上形成沉积层,过滤速率将随之下降.沉积层阻力的大小是衡量过滤难易程度的重要参数.比阻是确定阻力大小的基础.分别从微滤过程中比阻的分类、影响因素、定量测定三个方面作了简要介绍.
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