超滤膜/UF membrane：

在膜法分离技术中膜的微孔径在0.03-0.1μm之间的过滤膜称为超滤膜，而一般胶体体积均≥0.1m，乳胶>0.5um，大肠菌、葡萄球菌等细菌体积>0.2nm，浮物、微粒子等体积>5μm，因此超滤膜可以过滤出溶液中的细菌、胶体、悬浮物、蛋白质等大分子物质。

In the membrane separaion technology, the fitraton membrane wth micropore diameter between0.03-0.1 u m is caled ultrafraion membrane. Generaly,the volume of coloid is2 0.1 ym, atexis 2 0.5 ym, bacena such as Echerichia col and Staphylcoccus are 2 0.2 yum, suspended sods and paricles are more than 5 yM. herefore,uraltration membranecan filter out bacteria, colloids, suspended solids, proteins and other macromolecular substances in the solution.

工艺流程图/Techincal flow drawing：

超滤/Ultra-filtration：

• 超滤是一种膜分离技术，其膜为多孔性不对称结构。过滤过程是以膜俩侧的压差为驱动力，以机械筛分原理为基础的一种溶液分离过程，使用压力通常为0.1-0.3Mpa。超滤膜分离过程曾被看作是一种单纯的物理分离过程。

• 超滤通常用于制取矿泉水、山泉水，是以压力为推动力，利用超滤膜不同孔径分离液体中的杂质的过程。目前在水处理行业中，聚砜、聚丙烯及PVDF中空纤维式是组件应用最多。

• 超滤主要用于将溶液中的大分子、胶体和微粒与溶剂等小分子物质进行分离。目前，超滤的应用领域主要涉及食品、饮料、生物医药、精细化工、工业废水处理与回用、地表水前期预处理、中水回用、矿井水前期处理等。

  
  

• Ultrafltaion is a kind of membrane searation tecnolay. is membrane is oorous and asummetic. The ftralon pnces is a kind ofsouion seoaration proces based on heorinciole of mechanical sievino, whichis driven by the pressure dierence between the two sides of he membrane.The oeraing pressureis usuay 0.-0.3ma. Ulrailralion membraneseparation process was once regarded as a simple physical separation process.

• Ultraftraton is usual used to produce mineral water and mountain sping water.tis a proces of eparating impurities from iquid by using ultrafraion membrane with diferent poresizes. At present, in the water treatment industry, polvsulfone, polpropvlene and PVDF hollow fiber are the most widely used component

• sUlralltration is mainly used to searaie macromlecues, colids and pariles from smal molecues such as soyenis At resent the apicaion ields ofuralralion mainly ivolefod, beverage, biologjcal medicine, fine chemical industy,industnial wastewatertreatment and reuse,surace water pre-reatment,reclaimed water reuse, mine water pretreatment,etc.