Short-term pre-aeration applied to the dry anaerobic digestion of MSW, with a focus on the spectroscopic characteristics of dissolved organic matter
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- 作者：Zhe Ni ; Jianguo Liu ; jgliu@tsinghua.edu.cn ; Mingwu Zhang
- 关键词：Municipal solid waste ; Short-term pre-aeration ; Dry anaerobic digestion ; Methane production ; Dissolved organic matter ; Fluorescence excitation-emission matrix (EEM) spectroscopy
- 刊名：Chemical Engineering Journal
- 出版年：2017
- 出版时间：1 April 2017
- 年：2017
- 卷：313
- 期：Complete
- 页码：1222-1232
- 全文大小：576 K
- 卷排序：313
文摘
MSW with an 8-day pre-aeration produced the highest biogas yield of 192.4 NL/kg DM. Butyric acid dominated the VFAs (50–55%) in over acidifying reactors during dry AD. Accelerated protein degradation by pre-aeration neutralized excessive VFAs. Pre-aeration facilitated the conversion of protein- to fulvic- and humic-like matter. Fulvic- to protein-like fluorescent matter ratio can evaluate the stability of dry AD.