膜分离技术是一项新兴的高效分离技术。它以半透膜作为选择障碍层,允许某些组份透过而保留其他组份,从而达到分离的目的。因为它比之于传统的分离技术具有设备简单、操作简便、无相变、无化学变化、处理效率高、省能等诸多优点,而异军突起,日益受到人们的重视,应用领域不断扩大,发展十分迅速。欧美——技术先进产业发达膜分离技术看起来简单,其实不然,它是项实实在在的高技术。膜的类型、品种、形式很多,其制备工艺也不尽相同。以超滤膜为例,无论何种形式,它展开来差不多相当于报纸的厚度,却要求它的良好的选择性,既要有高的截留率,又要有较 Membrane separation technology is an emerging and efficient separation technology. It uses a semipermeable membrane as a barrier of choice, allowing certain components to pass through while retaining other components, so as to achieve the purpose of separation. Because it has the advantages of simple equipment, simple operation, simple operation, no phase change, no chemical change, high efficiency and energy saving as compared with the traditional separation technology, it has attracted more and more attentions since its emergence in the world. Its application fields are expanding and developing very rapidly rapid. Europe and the United States - advanced technology industry Developed membrane separation technology looks simple, it is not true, it is a real high-tech. The type of film, variety, in many forms, the preparation process is not the same. Taking the ultrafiltration membrane as an example, no matter what form it is, it unfolds almost as much as the thickness of a newspaper, but requires its good selectivity. It requires both high rejection rate and more