کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6482195 1415980 2018 31 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Anaerobic digestion of kitchen waste: The effects of source, concentration, and temperature
ترجمه فارسی عنوان
هضم بی هوازی از زباله های آشپزخانه: اثرات منبع، غلظت و درجه حرارت
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
چکیده انگلیسی
The anaerobic digestion (AD) performance for breakfast, lunch, and dinner kitchen waste (KW) produced by the canteen at Guangzhou University was assessed by a batch experiment under mesophilic and thermophilic conditions. The AD concentrations were 9.54 g VS/L, 20.12 g VS/L, and 39.99 g VS/L, respectively. The concentration of 20.12 g VS/L under thermophilic conditions had the best AD performance among all the KW. The maximum specific methane yield of 591 ± 30 mL/g VS was obtained from dinner KW (D-KW). Due to the differing organic composition, the specific methane yield of D-KW and lunch KW (L-KW) was 41.16% and 19.76% higher than that of breakfast KW (B-KW) under the optimal condition, respectively, whereas that of D-KW was 17.96% higher than that of L-KW. The specific methane yield was significantly correlated to the crude fat content. When the concentration was increased to 39.99 g VS/L, accumulation of toxic materials was observed and the AD process stopped. The potential biogas yield, based on production of 5904.43 tons of KW per year at the Guangzhou Higher Education Mega Center (HEMC), is 1.08 million m3 biogas, equivalent to 2.15 million KW h of electricity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical Engineering Journal - Volume 135, 15 July 2018, Pages 91-97
نویسندگان
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