کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4408398 1618849 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reactive solute transport in physically and chemically heterogeneous porous media with multimodal reactive mineral facies: The Lagrangian approach
ترجمه فارسی عنوان
حمل و نقل محلول واکنشی در محیط متخلخل شیمیایی و شیمیایی ناهمگن متخلخل با رخساره های مواد معدنی واکنشی چند منظوره: رویکرد لاگرانژی
کلمات کلیدی
حمل و نقل مجدد، رخساره های معدنی واکنشی، رسانه متخلخل سلطنتی، تئوری مبتنی بر لاگرانژی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی


• Hierarchical reactive mineral facies is used to describe the distribution of reactive minerals.
• Using Lagrangian theory, the analytical expression for reactive solute dispersion is derived.
• Sensitivity analysis is performed to understand the effects of hydraulic and reactive attributes.

Physical and chemical heterogeneities have a large impact on reactive transport in porous media. Examples of heterogeneous attributes affecting reactive mass transport are the hydraulic conductivity (K), and the equilibrium sorption distribution coefficient (Kd). This paper uses the Deng et al. (2013) conceptual model for multimodal reactive mineral facies and a Lagrangian-based stochastic theory in order to analyze the reactive solute dispersion in three-dimensional anisotropic heterogeneous porous media with hierarchical organization of reactive minerals. An example based on real field data is used to illustrate the time evolution trends of reactive solute dispersion. The results show that the correlation between the hydraulic conductivity and the equilibrium sorption distribution coefficient does have a significant effect on reactive solute dispersion. The anisotropy ratio does not have a significant effect on reactive solute dispersion. Furthermore, through a sensitivity analysis we investigate the impact of changing the mean, variance, and integral scale of K and Kd on reactive solute dispersion.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 122, March 2015, Pages 235–244
نویسندگان
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