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Comparison on the Effect of Brilliant Blue and NaCl Transport in Porous Column

机译：多孔柱中亮蓝和NaCl迁移效果的比较

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Nowadays,solute transport in porous media is an important issue in hydrogeology and engineering geology and tracer experiment is an important method in these researches.In order to study the Non-Fickian transport and reactive solute transport in porous media,one-dimensional physical models of homogeneous porous media were set up based on the review and analysis of the related previous studies.Tracer tests were carried out with chromogenic tracer (Brilliant Blue) and nonreactive tracer (NaCl).The corresponding numerical model was created then.The following conclusions were drawn as: (1)the breakthrough curves (BTCs) of solute transport in the homogeneous porous media show a regular normal distribution.The Non-Fickian phenomena as early arrival of peak value and the long tailings are not significant; (2) the pesk value of Brilliant Blue arrives earlier than NaCl's.That means Brilliant Blue transport with flow faster than that of NaCl; (3) Brilliant Blue concentration arrived a much bigger peak than NaCl concentration did,and the Brilliant Blue peak is closer to injection concentration,so in the process of transport,Brilliant Blue losses less; and (4) the pesk value of Brilliant Blue increases with the transport distance decrease obviously,BTC width becomes larger; with the increase of the Brilliant Blue concentration flow velocity,BTC coverage decreases,NaCl concentration did not change much in both of the cases.
机译：如今，多孔介质中的溶质运移是水文地质学和工程地质中的重要问题，示踪剂实验是这些研究中的重要方法。为了研究多孔介质中的非菲克式运移和反应性溶质运移，一维物理模型在回顾和分析以前的研究成果的基础上，建立了均匀的多孔介质，用显色示踪剂（亮蓝）和非反应示踪剂（NaCl）进行了示踪剂测试，然后建立了相应的数值模型，得出以下结论。如：（1）均质多孔介质中溶质运移的突破曲线（BTC）呈正态分布，峰值提前到达和长尾矿的非菲克现象不显着; （2）亮蓝的味觉值比NaCl早到达，这意味着亮蓝的迁移速率比NaCl快。 （3）亮蓝浓度到达的峰值比NaCl浓度大得多，并且亮蓝峰值更接近注入浓度，因此在运输过程中，亮蓝损失少; （4）随着运输距离的减小，亮蓝的色泽值增大，BTC宽度增大；在两种情况下，随着亮蓝浓度流速的增加，BTC覆盖率降低，NaCl浓度变化不大。

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