Dissolution Mass Transfer of Trapped Phase in Porous Media
Dissolution Mass Transfer of Trapped Phase in Porous Media
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DOI：
10.5772/intechopen.95448
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发表时间：
2021-01
期刊：
影响因子：
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通讯作者：
Anindityo Patmonoaji;Yingxue Hu;Chunwei Zhang;T. Suekane
中科院分区：
文献类型：
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作者：
Anindityo Patmonoaji;Yingxue Hu;Chunwei Zhang;T. Suekane
多孔介质中捕集相（TP）向流动相（FP）的溶解传质在水文地质学中具有重要作用，非水相液体对地下水的污染、地下水原位生物修复和地质碳固存。本章对这一现象进行了描述。首先，给出了物理模型和数学模型。然后，影响该过程的各种条件，即，讨论了多孔介质特性、毛细捕获特性、流动旁路、TP特性和FP速度。基于影响溶解传质的三个参数来描述这些不同的条件：TP界面面积（A）、TP溶解比（λ）和传质系数（k）。最后，建立了基于无因次模型的传质预测模型。本章中的所有数据都是基于我们最新工作中使用显微层析成像和一系列图像处理技术获得的实验。
Dissolution mass transfer of trapped phase (TP) to flowing phase (FP) in porous media plays significant roles in hydrogeology, e.g., groundwater contamination by non-aqueous phase liquids, groundwater in-situ bioremediation, and geological carbon sequestration. In this chapter, this phenomenon is described. First, the physical and mathematical models are given. Afterwards, various conditions affecting this process, i.e., porous media characteristics, capillary trapping characteristics, flow bypassing, TP characteristics, and FP velocity, are discussed. These various conditions are described based on three parameters affecting the dissolution mass transfer: TP interfacial area (A), TP dissolution ratio (ξ), and mass transfer coefficient (k). Eventually, models to predict the mass transfer are formulated based on non-dimensional model. All of the data in this chapter are based on the experiments obtained by using micro-tomography and a series of image processing techniques from our latest works.