期刊
BIORESOURCE TECHNOLOGY
卷 99, 期 17, 页码 8180-8184出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2008.03.021
关键词
anaerobic thermophilic digestion; organic fraction of municipal solid waste (OFMSW); biogas; methane
资金
- Spanish MCyT Project [CTM2004-01655]
- Andalusian Plan of Investigation [TEP-181]
- [PA105-TEP-01085]
The purpose of this study was to analyze the performance of two laboratory-scale reactors (5.0 L) treating organic fraction of municipal solid waste (OFMSW): source sorted OFMSW (SS-OFMSW) obtained from a university restaurant and mechanically selected municipal fraction (MS_OFMSW) obtained from a Municipal Treatment Plant placed in Cadiz-Spain. Discontinuous reactors operated at thermophilic (55 degrees C) and dry (20% total solid) conditions. Different decomposition patterns were observed: (1) the SS_OFMSW exhibited the classical waste decomposition pattern with a fast start up phase beginning within 0-5 days and 20-30 and a subsequent stabilization phase. The VS removal was 45% with a cumulative biogas of 120 L in approx. 60 days: (2) the MS_OFMSW showed a methanogenic pattern throughout the whole experimental period (60 days) and this gave higher levels of organic biodegradation (56%VSr) and biogas production (82 L). Both processes were completed and a high level of cumulative methane production was achieved in less than 60 days, proximally 25-30 L. (C) 2008 Elsevier Ltd. All rights reserved.
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