کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8885848 1627002 2018 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Transport of silver nanoparticles in single fractured sandstone
ترجمه فارسی عنوان
حمل و نقل نانوذرات نقره در ماسه سنگ تک
کلمات کلیدی
مهندسی نانوذرات نقره، ماسه سنگ تنها شکسته، حمل و نقل، تجزیه فیزیکی جریان زمین،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی
Silver nanoparticles (Ag-NP) are used in various consumer products and are one of the most prevalent metallic nanoparticle in commodities and are released into the environment. Transport behavior of Ag-NP in groundwater is one important aspect for the assessment of environmental impact and protection of drinking water resources in particular. Ag-NP transport processes in saturated single-fractured sandstones using triaxial flow cell experiments with different kind of sandstones is investigated. Ag-NP concentration and size are analyzed using flow field-flow fractionation and coupled SEM-EDX analysis. Results indicate that Ag-NP are more mobile and show generally lower attachment on rock surface compared to experiments in undisturbed sandstone matrix and partially fractured sandstones. Ag-NP transport is controlled by the characteristics of matrix porosity, time depending blocking of attachment sites and solute chemistry. Where Ag-NP attachment occur, it is heterogeneously distributed on the fracture surface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Contaminant Hydrology - Volume 209, February 2018, Pages 61-67
نویسندگان
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