期刊
BIORESOURCE TECHNOLOGY
卷 164, 期 -, 页码 408-415出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.05.013
关键词
Hydrogen production; Organic fraction of municipal solid waste; Sewage sludge; Dry thermophilic dark fermentation
资金
- Agrifood Campus of International Excellence (ceiA3) by the Ministry of Education (Ministerio de Educacion, Cultura y Deporte) [E-11-2013-0076119]
- Spanish Ministry of Science and Innovation (Ministerio de Ciencia e Innovacion) [CTM2010-17654]
- European Regional Development Fund (ERDF)
Batch dry-thermophilic anaerobic co-digestion (55 degrees C) of organic fraction of municipal solid waste (OFMSW) and sewage sludge (SS) for hydrogen production was studied under several sludge combinations (primary sludge, PS; waste activated sludge, WAS; and mixed sludge, MS), TS concentrations (10-25%) and mixing ratios of OFMSW and SS (1:1, 2.5:1, 5:1, 10:1). The co-digestion of OFMSW and SS showed a 70% improvement in hydrogen production rate over the OFMSW fermentation only. The co-digestion of OFMSW with MS showed 47% and 115% higher hydrogen production potential as compared with OFMSW + PS and OFMSW + WAS, respectively. The maximum hydrogen yield of 51 mL H-2/g VSconsumed was observed at TS concentration of 20% and OFMSW to MS mixing ratio of 5:1, respectively. The acetic and butyric acids were the main acids in VFAs evolution; however, the higher butyric acid evolution indicated that the H-2 fermentation was butyrate type fermentation. (C) 2014 Elsevier Ltd. All rights reserved.
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