Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/56903
Título: | Improvement of biomethane production from sewage sludge in co-digestion with glycerol and waste frying oil, using a design of experiments |
Autor(es): | Oliveira, João V. Duarte, T. Costa, J. C. Cavaleiro, Ana Júlia Pereira, M. A. Alves, M. M. |
Palavras-chave: | Anaerobic co-digestion Crude glycerol Design of experiments Sewage sludge Waste frying oil |
Data: | Dez-2018 |
Editora: | Springer Nature |
Revista: | Bioenergy Research |
Citação: | Oliveira, João V.; Duarte, T.; Costa, J. C.; Cavaleiro, Ana Júlia; Pereira, M. Alcina; Alves, M. Madalena, Improvement of biomethane production from sewage sludge in co-digestion with glycerol and waste frying oil, using a design of experiments. Bioenergy Research, 11(4), 763-771, 2018 |
Resumo(s): | A central composite design circumscribed method was used to define the experimental conditions that improve the methane production rate (kCH4, liters of methane per kilogram of VS of waste added and per day) and the cumulative methane production (cMP, liters of methane per kilogram of VS of waste added) of the co-digestion of sewage sludge (SS) with crude glycerol (cGly) and waste frying oil (WFO). Three factors were selected, i.e., SS concentration, global co-substrate concentration, and mass fraction of cGly (xcGly) in a mixture of cGly and WFO (in chemical oxygen demand, COD). SS digestion without co-substrate reached a cMP of (294±6) L·kg1 and a kCH4 of (64±1) L·kg1·d1, at standard temperature and pressure conditions and expressed relatively to the initial volatile solids. After statistical analysis, SS and co-substrate concentrations of 4.6 g·L1 and 8.8 g·L1 (in COD), respectively, with xcGly of 0.8, were defined to simultaneously boost cMP (91 % more) and kCH4 (3-fold increase). Application of these conditions would yield 214 MWh more in electricity per 1000 m3 of SS digested. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/56903 |
DOI: | 10.1007/s12155-018-9933-0 |
ISSN: | 1939-1234 |
Versão da editora: | http://link.springer.com/journal/12155 |
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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document_47836_1.pdf Acesso restrito! | 972,79 kB | Adobe PDF | Ver/Abrir |