期刊
WASTE MANAGEMENT
卷 61, 期 -, 页码 484-493出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2016.12.013
关键词
Anaerobic co-digestion; Brown water; Food waste; Hydrogen; Methane; Organic loading; Two-stage system
资金
- Architecture & Urban Development Research Program - Ministry of Land, Infrastructure and Transport of Korean government [16AUDP-B083704-03]
- National Research Foundation of Korea [31Z20130012924] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Two-stage anaerobic digestion system consisting of two continuously stirred tank reactors (CSTRs) operating at mesophillic conditions (37 degrees C) were studied. The aim of this study is to determine optimum Hydraulic Retention Time (HRT) of the two-stage anaerobic digester system for hydrogen and methane production. This paper also discusses the effect of OLR with change in HRT on the system. Four different HRTs of 48, 24, 12, 8 h were monitored for acidogenic reactor, which provided OLR of 17.7, 34.8, 70.8, 106 g VS/L.d respectively. Two HRTs of 15 days and 20 days were studied with OLR of 1.24 and 1.76 g VS/L.d respectively in methanogenic reactor. Hydrogen production at higher OLR and shorter HRT seemed favorable 106 g VS/L.d (8 h) in acidogenic reactor system. In methanogenic reactor system HRT of 20 day with OLR of 1.24 g VS/L.d was found optimum in terms of methane production and organic removal. The result of this study illustrated the optimum HRT of 8 h and 20 days in acidogenic stage and methanogenic stage for maximum hydrogen and methane production. (C) 2016 Elsevier Ltd. All rights reserved.
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