کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4997050 1459902 2017 39 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of ensiling and silage additives on biogas production and microbial community dynamics during anaerobic digestion of switchgrass
ترجمه فارسی عنوان
تأثیر افزودنی های سیلو و اسلب سازی بر تولید بیوگاز و پویایی جوامع میکروبی در طی هضم بی هوازی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Silage processing has a crucial positive impact on the methane yield of anaerobic treated substrates. Changes in the characteristics of switchgrass after ensiling with different additives and their effects on methane production and microbial community changes during anaerobic digestion were investigated. After ensiling (CK), methane yield was increased by 33.59% relative to that of fresh switchgrass (FS). In comparison with the CK treatment, methane production was improved by 17.41%, 13.08% and 8.72% in response to ensiling with LBr + X, LBr and X, respectively. A modified Gompertz model predicted that the optimum treatment was LBr + X, with a potential cumulative methane yield of 178.31 mL/g total solids (TS) and a maximum biogas production rate of 44.39 mL/g TS·d. Firmicutes and Bacteroidetes were the predominant bacteria in FS and silage switchgrass; however, the switchgrass treated with LBr + X was rich in Synergistetes, which was crucial for methane production.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 241, October 2017, Pages 349-359
نویسندگان
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