Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/58878
Título: | Garden and food waste co-fermentation for biohydrogen and biomethane production in a two-step hyperthermophilic-mesophilic process |
Autor(es): | Abreu, A. A. Tavares, F. Alves, M. M. Cavaleiro, Ana Júlia Pereira, M. Alcina |
Palavras-chave: | Garden waste food waste co-fermentation Caldicellulosiruptor saccharolyticus biochemical methane potential |
Data: | Abr-2019 |
Editora: | Elsevier 1 |
Revista: | Bioresource Technology |
Citação: | Abreu, A. A.; Tavares, F.; Alves, M. Madalena; Cavaleiro, Ana Júlia; Pereira, M. Alcina, Garden and food waste co-fermentation for biohydrogen and biomethane production in a two-step hyperthermophilic-mesophilic process. Bioresource Technology, 278, 180-186, 2019 |
Resumo(s): | Co-fermentation of garden waste (GW) and food waste (FW) was assessed in a two-stage process coupling hyperthermophilic dark-fermentation and mesophilic anaerobic digestion (AD). In the first stage, biohydrogen production from individual substrates was tested at different volatile solids (VS) concentrations, using a pure culture of Caldicellulosiruptor saccharolyticus as inoculum. FW concentrations (in VS) above 2.9 g L-1 caused a lag phase of 5 days on biohydrogen production. No lag phase was observed for GW concentrations up to 25.6 g L-1. In the co-fermentation experiments, the highest hydrogen yield (46±1 L kg-1) was achieved for GW:FW 90:10% (w/w). In the second stage, a biomethane yield of 682±14 L kg-1 was obtained using the end-products of GW:FW 90:10% co-fermentation. The energy generation predictable from co-fermentation and AD of GW:FW 90:10% is 0.5 MJ kg-1 and 24.4 MJ kg-1, respectively, which represents an interesting alternative for valorisation of wastes produced locally in communities. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/58878 |
DOI: | 10.1016/j.biortech.2019.01.085 |
ISSN: | 0960-8524 |
e-ISSN: | 0960-8524 |
Versão da editora: | http://www.journals.elsevier.com/bioresource-technology/ |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_50502_1.pdf | 876,84 kB | Adobe PDF | Ver/Abrir |