کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4996562 | 1368271 | 2017 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improving methane production and anaerobic digestion stability of food waste by extracting lipids and mixing it with sewage sludge
ترجمه فارسی عنوان
بهبود تولید متان و پاکسازی بی هوازی هضم مواد غذایی با استخراج لیپیدها و مخلوط کردن آن با لجن فاضلاب
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Anaerobic digestion (AD) of FW shows instability due to both the presence of high lipids and accumulation of volatile fatty acids. In this study, AD of food waste (FW) was optimized by removing lipids (LRFW) and by co-digestion with sewage sludge (1:1 w/w on dry matter). The results obtained showed that lipids extraction increased FW methane yield from 400 to 418 mL-g VSaddedâ1 under mesophilic conditions (35 °C) and from 426 to 531 mL-g VSaddedâ1 in thermophilic conditions (55 °C). Two degradation phases (k1 and k2) described FW and LRFW degradation. In the thermophilic, LRFW-k1 (0.1591 dâ1) was slightly higher than that of FW (k1 of 0.1543 dâ1) and in the second stage FW-k2 of 0.0552 dâ1 was higher than that of LRFW (k2 of 0.0117 dâ1). The majority of LRFW was degraded in the first stage. FW and sewage sludge co-digestion reduced VFA accumulation, preventing media acidification and improving process stability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 244, Part 1, November 2017, Pages 996-1005
Journal: Bioresource Technology - Volume 244, Part 1, November 2017, Pages 996-1005
نویسندگان
Dalal E. Algapani, Jing Wang, Wei Qiao, Min Su, Andrea Goglio, Simon M. Wandera, Mengmeng Jiang, Xiang Pan, Fabrizio Adani, Renjie Dong,