Nitrogen Removal from Landfill Leachate by Microalgae

• Tipo: Artigo em Revista Científica Internacional
• Data: 2016

Autores

Sérgio F. L. Pereira (Autor) Outra; Ana L. Gonçalves (Autor) Outra; Francisca C. Moreira (Autor) FEUP; Tânia F. C. V. Silva (Autor) FEUP; Vítor J. P. Vilar (Autor) FEUP; José C. M. Pires (Autor) FEUP

Revista

Título: International Journal Of Molecular Sciences

Vol. 17 Nº 11

Página Final: 1926

ISSN: 1661-6596

Editora: MDPI

Indexação

ISI Web of Knowledge - 38 Citações

Scopus - 45 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia de processos > Engenharia de bioprocessos ; Ciências Tecnológicas > Engenharia > Engenharia de projecto

FOS: Ciências da engenharia e tecnologias > Engenharia do ambiente

Projetos Associados

LEPABE - Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia

LSRE-LCM - Laboratório de Processos de Separação e Reação - Laboratório de Catálise e Materiais

UI0511 - PROJECTO ESTRATÉGICO - UI 511 - 2013-2014

AIProcMat@N2020 - Advanced Industrial Processes and Materials for a Sustainable North Region of Portugal2020

Outras Informações

ID Authenticus: P-00M-84T

DOI: 10.3390/ijms17111926

Abstract (EN): 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 14