Spatially resolved quantification of metal ion concentration in a biofilm-mediated ion exchanger.
Spatially resolved quantification of metal ion concentration in a biofilm-mediated ion exchanger.
复制标题
生物膜介导的离子交换剂中金属离子浓度的空间分辨定量。
DOI：
10.1002/bit.21647
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发表时间：
2008
影响因子：
3.8
通讯作者：
Graf Von Der Schulenburg DA
中科院分区：
文献类型：
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作者：
Graf Von Der Schulenburg DA
生物修复过程中，以消除Co2+从水溶液中进行了研究，在这项研究中使用磁共振成像（MRI）协议，以快速获得多个二维空间分辨的Co2+离子浓度地图。详细描述了MRI技术，并证明其能够确定轴向和径向浓度分布的演变，从中可以确定总柱容量。最终的离子交换柱设计允许在“活塞流”状态下操作，因此在突破之前利用其全部容量。用于这种过程优化的常规技术或者限于对交换器出口的分析，其不提供关于系统的空间异质性的信息，或者是侵入性的并且需要各种采样点来获得1D浓度信息。据我们所知，我们的研究结果代表了第一个浓度图描述的金属离子污染的水的生物修复。Biotechnol. Bioeng. 2008;99：821-829.© 2007威利期刊公司
A bioremediation process to remove Co2+from aqueous solution is investigated in this study using a magnetic resonance imaging (MRI) protocol to rapidly obtain multiple 2D spatially resolved Co2+ion concentration maps. The MRI technique is described in detail and its ability to determine the evolution in both axial and radial concentration profiles demonstrated, from which total column capacity can be determined. The final ion exchange column design allows operation in the ‘plug flow’ regime, hence making use of its full capacity before breakthrough. Conventional techniques for such process optimization are either restricted to the analysis of the exchanger outlet, which provides no information on the spatial heterogeneity of the system, or are invasive and need a variety of sample points to obtain 1D concentration information. To the best of our knowledge, our results represent the first concentration maps describing the bioremediation of metal ion contaminated water. Biotechnol. Bioeng. 2008;99: 821–829. © 2007 Wiley Periodicals, Inc.