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https://hdl.handle.net/1822/31751
Título: | Design of experiments to assess pre-treatment and co-digestion strategies that optimize biogas production from macroalgae Gracilaria vermiculophylla |
Autor(es): | Oliveira, J. V. M. Alves, M. M. Costa, J. C. |
Palavras-chave: | Algae Gracilaria sp. Glycerol Pre-treatment Sewage sludge |
Data: | Jun-2014 |
Editora: | Elsevier B.V. |
Revista: | Bioresource Technology |
Citação: | Oliveira, J. V.; Alves, M. M.; Costa, J. C., Design of experiments to assess pre-treatment and co-digestion strategies that optimize biogas production from macroalgae Gracilaria vermiculophylla. Bioresource Technology, 162, 323-330, 2014 |
Resumo(s): | A design of experiments was applied to evaluate different strategies to enhance the methane yield of macroalgae Gracilaria vermiculophylla. Biochemical Methane Potential (BMP) of G. vermiculophylla after physical pre-treatment (washing and maceration) reached 481 ± 9 L CH4 kg−1 VS, corresponding to a methane yield of 79 ± 2%. No significant effects were achieved in the BMP after thermochemical pre-treatment, although the seaweeds solubilisation increased up to 44%. Co-digestion with glycerol or sewage sludge has proved to be effective for increasing the methane production. Addition of 2% glycerol (w:w) increased the BMP by 18%, achieving almost complete methanation of the substrate (96 ± 3%). Co-digestion of seaweed and secondary sludge (15:85%, TS/TS) increased the BMP by 25% (605 ± 4 L CH4 kg−1 VS) compared to the seaweed individual digestion. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/31751 |
DOI: | 10.1016/j.biortech.2014.03.155 |
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_17759_1.pdf | 1,85 MB | Adobe PDF | Ver/Abrir |