کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6474885 1424971 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of the effect of glycerol supplementation on the anaerobic digestion of real municipal solid waste in batch mode
ترجمه فارسی عنوان
بررسی اثر مکمل گلیسرول بر هضم بی هوازی ضایعات جامد شهری واقعی در حالت دسته ای
کلمات کلیدی
تولید متان، زباله های واقعی جامد شهری، حالت دسته ای، فعالیت متانوژنیک، گلیسرول،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
The effect of low glycerol supplementation (<1% v/v) in the thermophilic anaerobic digestion (AD) of real municipal solid waste (RMSW) on methane production (MP) is not known. This study explores the effect of five different glycerol supplementations (0%, 0.1%, 0.25%, 0.5% and 1%) on effluent characteristics, anaerobic consortia and MP. Specifically, by adding 0.25% v/v crude glycerol to the feed, the methane production rate increased by 48% (from 7.40 ± 1.17 l CH4/l to 11.01 ± 1.66 l CH4/l), in line with the increase in total volatile solids (TVS) removal (from 65 ± 7% to 81 ± 7) and methanogenic activity (from 110 ∗ 10−12 ± 17 ∗ 10−12 l CH4/cell to 156 ∗ 10−12 ± 24 ∗ 10−12 l CH4/cell). Extra glycerol added to the feed (0.5% or 1%) was shown to be non-feasible for thermophilic AD of RMSW, as inhibition of methanogenesis was observed. Fluorescent in situ hybridization (FISH) studies showed that the percentages of Eubacteria, Archaea, H2-utilising methanogens (HUM) and acetate-utilising methanogens (AUM) were stable within the 94.0-97.0%, 6.0-3.0%, 1.8-3.6% and 0.6-2.8% ranges, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 193, 1 April 2017, Pages 15-21
نویسندگان
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