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陶氏纳滤膜NF245-390-FF 脱盐型纳滤膜

作者:陶氏膜 来源:陶氏膜公司发布时间:2015-01-26 16:28:34

  陶氏纳滤膜NF245-390-FF采用了陶氏专有抗污染膜技术进行化学及物理改性,专门针对有较严格的预处理,但原水仍富含生物和有机物等污染物的应用领域。

NF245-390-FF

陶氏纳滤膜NF245-390-FF

  陶氏纳滤膜NF245-390-FF的工艺原理

  陶氏纳滤膜NF245-390-FF的原理与超滤及反渗透等膜分离过程一样,也是以压力差为推动力的膜分离过程,是一个不可逆过程。其分离机制可以运用电荷模型(空间电荷模型和固定电荷模型)、细孔模型以及近年来才提出的静电排斥和立体阻碍模型等来描述。与其他膜分离过程比较,纳滤的一个优点是能截留透过超滤膜的小分子量的有机物,又能透析反渗透膜所截留的部分无机盐——也就是能使“浓缩”与脱盐同步进行。

  DOW FILMTEC NF245-390-FF elements can be used by food and dairy processors for a variety of desalting, purification, and other separations. This element contains a new nanofiltration membrane sheet designed to reject organics with a molecular weight above 300 amu while passing monovalent salts. The full-fit configuration is optimal for cleaning and minimizing "dead spaces." All materials of construction are compliant with U.S. Food & Drug Administration indirect food contact requirements and are suitable for use in food processing applications.

  Used In:

  Medical applications

  sanitary uses

  Advantages:

  High flux rates

  Full-fit design

  consistent quality from automated rolling

  Filmtec performance and quality

 

请点击下载:陶氏FILMTEC™ NF245-390-FF产品技术手册