کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
576907 | 1453093 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of soil moisture on chlorine deposition
ترجمه فارسی عنوان
اثر رطوبت خاک بر رسوب کلر
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کلمات کلیدی
رسوب کلر، رطوبت خاک، مواد شیمیایی صنعتی سمی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
چکیده انگلیسی
The effect of soil moisture on chlorine (Cl2) deposition was examined in laboratory chamber experiments at high Cl2 exposures by measuring the concentration of chloride (Clâ) in soil columns. Soil mixtures with varying amounts of clay, sand, and organic matter and with moisture contents up to 20% (w/w) were exposed to â3Â ÃÂ 104Â ppm Cl2 vapor. For low water content soils, additional water increased the reaction rate as evidenced by higher Clâ concentration at higher soil moisture content. Results also showed that the presence of water restricted transport of Cl2 into the soil columns and caused lower overall deposition of Cl2 in the top 0.48-cm layer of soil when water filled â60% or more of the void space in the column. Numerical solutions to partial differential equations of Fick's law of diffusion and a simple rate law for Cl2 reaction corroborated conclusions derived from the data. For the soil mixtures and conditions of these experiments, moisture content that filled 30-50% of the available void space yielded the maximum amount of Cl2 deposition in the top 0.48Â cm of soil.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 267, 28 February 2014, Pages 81-87
Journal: Journal of Hazardous Materials - Volume 267, 28 February 2014, Pages 81-87
نویسندگان
John Hearn, Jeffery Eichler, Christopher Hare, Michael Henley,