کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1739254 1521632 2007 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Measurement and modeling of oxidation rate of hydrogen isotopic gases by soil
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
Measurement and modeling of oxidation rate of hydrogen isotopic gases by soil
چکیده انگلیسی

Measurements of oxidation rate of hydrogen isotopic gases by soil were made to model HT oxidation rate by soil. Soil was sampled at a cultivated farmland and laboratory measurements of the oxidation rate of H2 and D2 gases simulating HT gas were carried out under controlled conditions of soil. The oxidation rate increased with increase of H2 or D2 concentration in air and nearly saturated at high concentration. The oxidation rate was low under extremely dry and wet soil conditions and was the highest at soil water content of 8–14 w/w%. The oxidation rate increased exponentially with increasing soil temperature and was the highest at 46 °C. Michaelis constant Km increased exponentially with increasing soil temperature. Oxidation rate of H2 was generally higher than that of D2, while Km of H2 was generally lower than that of D2. From these results, oxidation rate of HT was modeled as a product of the functions that represent dependency on each soil factor.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Radioactivity - Volume 97, Issues 2–3, October 2007, Pages 103–115
نویسندگان
, , , ,