Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/9467
Título: | Continuous high rate anaerobic treatment of oleic acid based wastewater is possible after a step feeding start-up |
Autor(es): | Cavaleiro, A. J. Salvador, A. F. Alves, J. I. Alves, M. M. |
Data: | Abr-2009 |
Editora: | American Chemical Society |
Revista: | Environmental Science and Technology |
Citação: | “Environmental Science and Technology”. ISSN 0013-936X. 43:8 (2009) 2931–2936. |
Resumo(s): | Mineralization of a synthetic effluent containing 50% COD as oleic acid was achieved in a continuous anaerobic reactor at organic loading rates up to 21 kg COD m−3 day−1, HRT of 9 h, attaining 99% of COD removal efficiency and a methane yield higher than 70%. A maximum specific methane production rate of 1170 ± 170 mg COD-CH4 g VS−1 day−1 was measured during the reactor’s operation. A start-up strategy combining feeding phases and batch degradation phases was applied to promote the development of an anaerobic community efficient for long chain fatty acids (LCFA) mineralization. Through the start-up period, the methane yield increased gradually from 67% to 91%, and LCFA accumulated onto the sludge only during the first 60 days of operation. For the first time, it is demonstrated that a step feeding start-up is required to produce a specialized and efficient anaerobic community for continuous high rate anaerobic treatment of LCFA-rich wastewater. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/9467 |
DOI: | 10.1021/es8031264 |
ISSN: | 0013-936X |
Versão da editora: | http://pubs.acs.org/doi/full/10.1021/es8031264 |
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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Cavaleiro_EST.pdf | 530,46 kB | Adobe PDF | Ver/Abrir |