Utilize este identificador para referenciar este registo:
https://hdl.handle.net/10216/103389
Autor(es): | Sérgio F. L. Pereira Ana L. Gonçalves Francisca C. Moreira Tânia F. C. V. Silva Vítor J. P. Vilar José C. M. Pires |
Título: | Nitrogen Removal from Landfill Leachate by Microalgae |
Data de publicação: | 2016 |
Resumo: | Landfill leachates result from the degradation of solid residues in sanitary landfills, thus presenting a high variability in terms of composition. Normally, these effluents are characterized by high ammoniacal-nitrogen (N-NH4+) concentrations, high chemical oxygen demands and low phosphorus concentrations. The development of effective treatment strategies becomes difficult, posing a serious problem to the environment. Phycoremediation appears to be a suitable alternative for the treatment of landfill leachates. In this study, the potential of Chlorella vulgaris for biomass production and nutrients (mainly nitrogen and phosphorus) removal from different compositions of a landfill leachate was evaluated. Since microalgae also require phosphorus for their growth, different loads of this nutrient were evaluated, giving the following N:P ratios:12:1, 23:1 and 35:1. The results have shown that C. vulgaris was able to grow in the different leachate compositions assessed. However, microalgal growth was higher in the cultures presenting the lowest N-NH4+ concentration. In terms of nutrients uptake, an effective removal of N-NH4+ and phosphorus was observed in all the experiments, especially in those supplied with phosphorus. Nevertheless, N-NO3- removal was considered almost negligible. These promising results constitute important findings in the development of a bioremediation technology for the treatment of landfill leachates. |
Assunto: | Engenharia de bioprocessos, Engenharia de projecto, Engenharia do ambiente Bioprocess engineering, Project engineering, Environmental engineering |
Áreas do conhecimento: | Ciências da engenharia e tecnologias::Engenharia do ambiente Engineering and technology::Environmental engineering |
URI: | https://hdl.handle.net/10216/103389 |
Informação Relacionada: | info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e a Tecnologia/Projetos Estratégicos/UID/EQU/50020/2013- POCI-01-0145-FEDER-006984/Laboratório de Processos de Separação e Reação - Laboratório de Catálise e Materiais/LSRE-LCM info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e a Tecnologia/Projetos Estratégicos/PEst-C/EQB/UI0511/2013/PROJECTO ESTRATÉGICO - UI 511 - 2013-2014/UI0511 info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e a Tecnologia/Projetos Estratégicos/UID/EQU/00511/2013 - POCI-01-0145-FEDER-006939/Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia/LEPABE |
Tipo de Documento: | Artigo em Revista Científica Internacional |
Condições de Acesso: | openAccess |
Aparece nas coleções: | FEUP - Artigo em Revista Científica Internacional |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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185362.pdf | Artigo Original Publicado | 3 MB | Adobe PDF | Ver/Abrir |
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