首页> 外文会议>Tenth Annnal Meeting of the North American Membrane Society Man 16-20, 1998 Cleveland Ohio >Comparison of polypeptide functionalized cellulose, silica, and other polymeric microfiltration membranes for high capacity metal sequestration
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Comparison of polypeptide functionalized cellulose, silica, and other polymeric microfiltration membranes for high capacity metal sequestration

机译:多肽官能化纤维素,二氧化硅和其他聚合物微滤膜用于高容量金属螯合的比较

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摘要

The use of microfiltration (MF) membranes traditionally deals with the separation of particles from solution. However, as membrane applications are used more and more in process streams, new "smart" MF membranes are necessary to achieve the desired separation. One of the these nes class of MF membranes is polypeptide functionalized MF membranes which allow for the removal of dissolved metals from process streams by sorption onto exchange sites on polypeptides which have been chemically attached to membrane pores convectively. The allows for much higher heavy metal sorption capacity than if chelation was taking place just on the membrane surface. The development of MF-based sorbents containing polymeric chelating (Such as polypeptides) agents is a novel technique to achieve very high metal soption under convective flow conditions (1).
机译:传统上,使用微滤(MF)膜处理溶液中颗粒的分离。然而,随着膜应用越来越多地用于工艺流中,新型“智能” MF膜对于实现所需的分离必不可少。这些其它类型的MF膜之一是多肽官能化的MF膜,其通过吸附到已化学对流地附着在膜孔上的多肽的交换位点上而允许从工艺流中除去溶解的金属。与仅在膜表面上发生螯合的情况相比,这允许更高的重金属吸附能力。包含聚合螯合剂(例如多肽)的基于MF的吸附剂的开发是一种在对流条件下实现很高的金属选择性的新技术(1)。

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