Reactive Solute Transport Analysis in Subsurface Environment

地下环境中的反应性溶质运移分析

• 批准号: 15510005
• 负责人: MOMII Kazuro
• 金额: $ 2.37万
• 依托单位: Kagoshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15510005/
• 关键词: reactive solute transport; chemical equilibrium; numerical simulation; column experiment; cation exchange; surface complexation; groundwater; modeling; 移流分散; 溶質輸送; 土壌汚染; モデル化; 塩水浸入; 化学平衡計算; CIP法; シミュレーション; 鉛汚染土壌; 酸洗浄; 陽イオン交換反応; 表面錯形成反応

One-dimensional reactive solute transport model has been developed by coupling of transport and chemical reactions in subsurface environments. The constrained interpolation profile (CIP) method was applied to the solute transport calculations. Numerical results by this model agreed well with the results from cation-exchange column experiments. The model was also applied to the numerical simulation of acid-flushing of a lead-contaminated soil. The solution procedure based on the proposed model in this study has advantage of the low-cost computation cost and simplicity to expand this model to different chemical reactions or other reactions-based transport systems. Furthermore, the numerical methods to solve the convection-dispersion equation by the CIP method and the method of characteristics (MOC) were examined and verified against the laboratory experiments. The laboratory study to test the performance of the numerical code was carried out for the saltwater movement in confined and unconfined aquifer cases. The results indicate that the CIP method is slightly less accurate in comparison with the MOC method. The CIP method, however, still give acceptable results in saltwater mixing zone in case of the seawater intrusion, and the calculation speed of CIP method is significantly shorter as compared to the MOC calculation. The model in this study can be useful in understanding the mechanism of multicomponent reactive solute transport in subsurface environments.

将地下环境中的溶质运移和化学反应耦合起来，建立了一维反应溶质运移模型。采用约束插值剖面法（CIP）进行溶质运移计算.模型计算结果与阳离子交换柱实验结果吻合较好。将该模型应用于某铅污染土壤的酸洗数值模拟。基于该模型的求解过程具有计算成本低、易于扩展到不同化学反应或其他基于反应的输运系统的优点。此外，数值方法求解对流-弥散方程的CIP方法和特征线法（MOC）进行了检查和验证的实验室。通过对承压含水层和非承压含水层中盐水运动的数值模拟，验证了数值程序的有效性。结果表明，CIP方法的准确度略低于MOC方法。CIP方法，然而，仍然给出了可接受的结果，在盐水混合区的情况下，海水入侵，CIP方法的计算速度显着较短相比，MOC计算。该模型可用于了解地下环境中多组分反应性溶质运移的机理。

项目成果

Saltwater intrusion in coastal aquifer ??? comparison between the CIP and MOC simulation technique

• DOI: 10.1007/s10666-005-2909-4
• 发表时间: 2005-10
• 期刊: Environmental Modeling & Assessment
• 影响因子: 2.4
• 作者: K. Nakagawa;K. Momii;R. Berndtsson

重金属汚染土壌の酸洗浄に及ぼす流れ場の影響評価

流场对重金属污染土壤酸洗影响评价

• 发表时间: 2004
• 期刊: 土と基礎 52・10
• 作者: 中川啓;和田信一郎;籾井和朗
• 通讯作者: 籾井和朗

Multi-component reactive solute transport analysis in saturated soil based on CIP method and chemical equilibrium

基于CIP法和化学平衡的饱和土中多组分反应性溶质运移分析

• 发表时间: 2004
• 期刊: Proceedings of Japan Society of Civil Engineering No.761/2-67
• 作者: Nakagawa;K.;Shin-Ichiro Wada;Momii;K.
• 通讯作者: K.

Observations and modeling of seawater intrusion for a small limestone island aquifer

小型石灰岩岛含水层海水入侵的观测和模拟

• 发表时间: 2005
• 期刊: Hydrological Processes 19
• 作者: Momii;K.;Shoji;J.;Nakagawa,K
• 通讯作者: Nakagawa,K

CIP法と科学平衡計算による飽和土壌中の多成分溶質反応輸送解析

利用CIP法和科学平衡计算进行饱和土中多组分溶质反应输运分析

• 发表时间: 2004
• 期刊: 土木学会論文集 761/II・67
• 作者: 中川啓;和田信一郎;籾井和朗
• 通讯作者: 籾井和朗