期刊
BIORESOURCE TECHNOLOGY
卷 178, 期 -, 页码 226-229出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.09.001
关键词
Two-stage anaerobic digestion; Food waste
资金
- New York State Pollution Prevention Institute
- National Science Foundation
Single and two-phase operations were compared at mesophilic operating conditions using a digester system consisting of three 5-m(3) reactors treating food waste generated daily within the university campus kitchens. When normalizing the methane production to the daily feedstock characteristics, significantly greater methane was produced during two-phase mesophilic digestion compared to the single-stage operation (methane yield of 380 vs 446-L CH4 kg VS-1; 359 vs 481-L CH4 kg COD-1 removed for single vs two stage operation). The fermentation reactor could be maintained reliably even under very low loading rates (0.79 +/- 0.16 kg COD m(-3) d(-1)) maintaining a steady state pH of 5.2. (C) 2014 Elsevier Ltd. All rights reserved.
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