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Título: | Combining urban wastewater treatment with biohydrogen production – An integrated microalgae-based approach |
Palavras-chave: | Microalgae Wastewater treatment Biohydrogen Dark fermentation Microalgas Águas residuais urbanas - Tratamento Bio-hidrogênio Fermentação escura |
Data do documento: | Mai-2015 |
Editor: | Elsevier B.V. |
Citação: | BATISTA, A. P. et al. Combining urban wastewater treatment with biohydrogen production – An integrated microalgae-based approach. Bioresource Technology, [S. I.], v. 184, p. 230-235, May 2015. |
Resumo: | The aim of the present work was the simultaneous treatment of urban wastewater using microalgae and the energetic valorization of the obtained biomass. Chlorella vulgaris (Cv), Scenedesmus obliquus (Sc) and a naturally occurring algal Consortium C (ConsC) were grown in an urban wastewater. The nutrient removals were quite high and the treated water fits the legislation (PT Dec-Lei 236/98) in what concerns the parameters analysed (N, P, COD). After nutrient depletion the microalgae remained two more weeks in the photobioreactor (PBR) under nutritional stress conditions, to induce sugar accumulation (22–43%). The stressed biomass was converted into biohydrogen (bioH2), a clean energy carrier, through dark fermentation by a strain of the bacteria Enterobacter aerogenes. The fermentation kinetics were monitored and fitted to a modified Gompertz model. The highest bioH2 production yield was obtained for S. obliquus (56.8 mL H2/gVS) which was very similar when using the same algae grown in synthetic media. |
URI: | https://www.sciencedirect.com/science/article/abs/pii/S0960852414014862?via%3Dihub#! http://repositorio.ufla.br/jspui/handle/1/41608 |
Aparece nas coleções: | DAG - Artigos publicados em periódicos |
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