کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8870194 | 1622615 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Anaerobic digestion of grape pomace: Effect of the hydraulic retention time on process performance and fibers degradability
ترجمه فارسی عنوان
هضم بی هوازی از خرچنگ انگور: اثر زمان نگهداری هیدرولیکی بر عملکرد فرایند و تجزیه پذیری فیبر
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کلمات کلیدی
هضم بی هوازی زردآلو انگور، تولید متان، هضم های مداوم، زمان نگهداری هیدرولیک، کسر لیگنوسلولزیک،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
To optimize the anaerobic digestion of grape pomace under mesophilic conditions, continuous digesters were operated at different hydraulic retention times (HRT) (30, 20, 15 and 10â¯days) equivalent to organic loading rates (OLR) of 2.5, 3.7, 5.7 and 7.3â¯kg COD mâ3 dâ1, respectively. At HRTs of 30 and 20â¯days, steady state conditions were observed with methane yields of 0.984â¯Â±â¯0.013 NL dâ1 and 1.362â¯Â±â¯0.018 NL dâ1, respectively. The HRT of 15â¯days was found critical because of acids accumulation through the experiments. When the OLR of 5.7â¯kg COD mâ3 dâ1 was reached, methane production was found to be instable. Finally, at HRT of 10â¯days, a failure of the system was observed due to the washing of the methanogenic microorganisms. Regarding the degradability of the lignocellulosic fractions, the maximum reduction yields for hemicellulose and cellulose were noted for HRTs of 30 and 20â¯days, while lignin was not degraded throughout the different experiments. For an optimization of the process, HRT of 20â¯days can therefore be recommended for productive use in large-scale applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Waste Management - Volume 71, January 2018, Pages 137-146
Journal: Waste Management - Volume 71, January 2018, Pages 137-146
نویسندگان
Jean H. El Achkar, Thomas Lendormi, Dominique Salameh, Nicolas Louka, Richard G. Maroun, Jean-Louis Lanoisellé, Zeina Hobaika,