کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7069015 | 1459893 | 2018 | 35 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synergetic promotion of syntrophic methane production from anaerobic digestion of complex organic wastes by biochar: Performance and associated mechanisms
ترجمه فارسی عنوان
ترویج همگرا تولید مترون سنتروفی از هضم بی هوازی از ضایعات آلی پیچیده بوسیله زیست تخریب: عملکرد و سازوکارهای مرتبط
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Biochar was added to a mesophilic anaerobic digester to promote syntrophic volatile fatty acids (VFAs) oxidation and methane production from complex organic wastes. Compared with conventional operation, biochar addition effectively shortened the lag time by 27.5-64.4% and increased the maximum methane production rate by 22.4%-40.3%. With a biochar dosage of 15â¯g/L, the system performed well under an organic loading rate as high as 3â¯g substrate/gâ¯inoculums. Biochar showed a remarkable buffering capacity to alleviate pH decrease caused by VFAs accumulation. In order to gain knowledge on associated mechanisms, a specific experiment was conducted using butyrate as substrate. It was identified that syntrophic degradation of butyrate to acetate occurred under high H2 partial pressure. By microbial community analysis, it was further revealed that biochar addition brought about the enrichment of Anaerolineaceae and Methanosaeta, typical microorganisms for direct interspecies electron transfer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 250, February 2018, Pages 812-820
Journal: Bioresource Technology - Volume 250, February 2018, Pages 812-820
نویسندگان
Gaojun Wang, Qian Li, Xin Gao, Xiaochang C. Wang,