کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8870428 1622617 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterization of methane oxidation in a simulated landfill cover system by comparing molecular and stable isotope mass balances
ترجمه فارسی عنوان
تعیین اکسیداسیون متان در یک سیستم پوشش مقطع شبیه سازی شده با مقایسه توزیع توده ایزوتوپ مولکولی و پایدار
کلمات کلیدی
پوشش زباله، اکسیداسیون متان، تجزیه و تحلیل ایزوتوپ پایدار تعادل توده، تصویربرداری حرارتی،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
Additionally, an evaluation by thermal imaging as a potential technique for the localization of the active zone of bacterial methane oxidation has been addressed in connection with stable isotope analysis and CO2/CH4-ratios. Although landfills can be considered as open systems the results for stable isotope analysis based on a closed system correlated better with the mass balance than calculations based on an open system. CO2/CH4-ratios were also in good agreement with mass balance. In general, highest values for biodegradation were determined from mass balance, followed by CO2/CH4-ratio, and stable isotope analysis. The investigated topsoil proved to be very suitable as a potential cover layer by removing up to 99% of methane for CH4 loads of 35-65 g m-2 d-1 that are typical in the aftercare phase of landfills. Finally, data from stable isotope analysis and the CO2/CH4-ratios were used to trace microbial activity within the reactor system. It was shown that methane consumption and temperature increase, as a cause of high microbial activity, correlated very well.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Waste Management - Volume 69, November 2017, Pages 281-288
نویسندگان
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