کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10146472 1646403 2018 26 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Semi-continuous anaerobic co-digestion of chicken litter with agricultural and food wastes: A case study on the effect of carbon/nitrogen ratio, substrates mixing ratio and organic loading
ترجمه فارسی عنوان
هضم نیمه پیوسته بی هوازی بستر مرغ با مواد زائد کشاورزی و مواد غذایی: مطالعه موردی در رابطه با نسبت کربن / نیتروژن، نسبت مخلوط زیربخش و بار آلی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
In this study, four agro-industrial substrates, chicken litter (CL), food waste (FW), wheat straw (WS) and hay grass (HG) were assessed as feedstock for anaerobic digestion (AD) under semi-continuous conditions at organic loading rates (OLRs) of 2.0-3.0 g TS/L.d and hydraulic retention time (HRT) of 20 days. Six different substrate mixtures were prepared such that the C/N ratio of each was 20 or more. Using principal component analysis 68.1% of data variability was explained. Biogas production from CL, as a single substrate, was 181.3 ± 9.8 mLN biogas/g VSadded at OLR of 2.0 gTS/L.d. The optimum substrates mixture was CL:FW:WS 60:20:20, where 73.0%, 167.2% and 116.9% increase in total biogas production at OLR of 2.0, 2.5, 3.0 gTS/L.d, respectively, compared to that from CL, was obtained. Digestate sequential fractionation revealed carbohydrate degradation is an important factor that can explain the variation in performance and production of biogas for feedstocks of balanced C/N ratio.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 270, December 2018, Pages 245-254
نویسندگان
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