Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/22616
Título: | Effects of pre-treatment and bioaugmentation strategies on the anaerobic digestion of chicken feathers |
Autor(es): | Costa, J. C. Barbosa, S. G. Sousa, D. Z. |
Palavras-chave: | Anaerobic co-digestion Biochemical methane potential Feathers Hydrolysis Waste treatment |
Data: | 2012 |
Editora: | Elsevier 1 |
Revista: | Bioresource Technology |
Resumo(s): | Anaerobic digestion of raw chicken feather waste and its co-digestion with poultry litter were assessed in batch assays. Following, two strategies were evaluated to improve methane production from chicken feathers: (i) waste pre-hydrolysis through thermochemical treatment using lime and sodium hydroxide, and (ii) amendment of digestion broth with the proteolytic bacterium Fervidobacterium pennivorans. Anaerobic digestion of the raw waste (2.5% total solids) allowed a specific methane production of 123 ± 3 L CH4 kg 1 VS. Pre-treatment and bioaugmentation strategies did not improve methane production from feather waste, despite the significant increase in waste solubilisation, from 45 ± 5% up to 64 ± 1% using F. pennivorans and up to 96% after pre-treatment with 2 g NaOH g 1 waste. These results indicate that conversion of soluble organic matter to methane, and not the hydrolysis rate, was the limiting step for the anaerobic digestion of chicken feather waste. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/22616 |
DOI: | 10.1016/j.biortech.2012.06.047 |
ISSN: | 0960-8524 |
Versão da editora: | http://dx.doi.org/10.1016/j.biortech.2012.06.047 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
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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1-s2.0-S0960852412009510-main.pdf Acesso restrito! | 734,48 kB | Adobe PDF | Ver/Abrir |