کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6974121 1453324 2018 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparing two enhancing methods for improving kitchen waste anaerobic digestion: Bentonite addition and autoclaved de-oiling pretreatment
ترجمه فارسی عنوان
مقایسه دو روش تقویت بهبود هضم بی هوازی در آشپزخانه: افزودن بنتونیت و پیش آماده سازی روغن بدون روغن
کلمات کلیدی
هضم بی هوازی زباله آشپزخانه، بنتونیت، اتوکلاو د-روغنکاری،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
چکیده انگلیسی
The effects of different enhancement methods, including adding bentonite (1.25%, w/w, wet substrate) and autoclaved de-oiling pretreatment (121 °C, 30 min), on the anaerobic digestion of kitchen waste (KW) were comparably studied. Mesophilic continuous stirred tank reactors were used under different organic loading rates (OLRs) of 1.11-1.84 gVS (volatile solid)L−1 d−1 and two different hydraulic retention times (HRTs) (20 d and 25 d). In this study, two enhancement methods and extending HRT could prevent volatile fatty acids (VFA) accumulation and obtain a high methane production at low OLR. Owing to the effect of providing nutrients and buffering capacity, the maximum methane yield was obtained with adding bentonite at OLR of 1.39 gVSL−1 d−1. However, for high OLR (1.84 gVSL−1 d−1), a decrease of the methane yield and system breakdown occurred due to the accumulation of VFAs. Engineering design and process evaluation of a CSTR biogas plant treating with KW based on the laboratory experiment was stated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Safety and Environmental Protection - Volume 115, April 2018, Pages 116-124
نویسندگان
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