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https://hdl.handle.net/1822/35367
Título: | Biohythane production from marine macroalgae Sargassum sp. coupling dark fermentation and anaerobic digestion |
Autor(es): | Costa, J. C. Oliveira, J. V. Pereira, M. A. Alves, M. M. Abreu, A. A. |
Palavras-chave: | Biohythane Marine Biomass Sargassum sp Biohydrogen Anaerobic digestion Caldicellulosiruptor sacharolyticus Caldicellulosiruptor saccharolyticus |
Data: | Ago-2015 |
Editora: | Elsevier B.V. |
Revista: | Bioresource Technology |
Citação: | Costa, J. C.; Oliveira, J. V.; Pereira, M. A.; Alves, M. M.; Abreu, A. A., Biohythane production from marine macroalgae Sargassum sp. coupling dark fermentation and anaerobic digestion. Bioresource Technology, 190, 251-256, 2015 |
Resumo(s): | Potential biohythane production from Sargassum sp. was evaluated in a two stage process. In the first stage, hydrogen dark fermentation was performed by Caldicellulosiruptor saccharolyticus. Sargassum sp. concentrations (VS) of 2.5, 4.9 and 7.4 g L−1 and initial inoculum concentrations (CDW) of 0.04 and 0.09 g L−1 of C. saccharolyticus were used in substrate/inoculum ratios ranging from 28 to 123. The end products from hydrogen production process were subsequently used for biogas production. The highest hydrogen and methane production yields, 91.3 ± 3.3 L kg−1 and 541 ± 10 L kg−1, respectively, were achieved with 2.5 g L−1 of Sargassum sp. (VS) and 0.09 g L−1of inoculum (CDW). The biogas produced contained 14–20% of hydrogen. Potential energy production from Sargassum sp. in two stage process was estimated in 242 GJ ha−1 yr−1. A maximum energy supply of 600 EJ yr−1 could be obtained from the ocean potential area for macroalgae production. The highest hydrogen and methane production yields, 91.3±3.3 L kg-1 and 541±10 L kg-1, respectively, were achieved with 2.5 g L-1 of Sargassum sp. (VS) and 0.09 g L-1of inoculum (CDW). The biogas produced contained 14 to 20% of hydrogen. Potential energy production from Sargassum sp. in two stage process was estimated in 242 GJ ha-1yr-1. A maximum energy supply of 600 EJ yr-1 could be obtained from the ocean potential area for macroalgae production. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/35367 |
DOI: | 10.1016/j.biortech.2015.04.052 |
ISSN: | 0960-8524 |
e-ISSN: | 0960-8524 |
Versão da editora: | http://www.sciencedirect.com/science/article/pii/S0960852415005593 |
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_19962_1.pdf | 879,91 kB | Adobe PDF | Ver/Abrir |