Effect of Cr(VI) in four portuguese microalgae growth

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Maria Alzira P. Dinis (Autor) Outra; Vítor J. P. Vilar (Autor) FEUP; Álvaro A. M. G. Monteiro (Autor) Outra; Rui A. R. Boaventura (Autor) FEUP

Revista

Título: Environmental Engineering and Management Journal

Vol. 11 Nº 11

Páginas: 2013-2022

ISSN: 1582-9596

Editora: Institutul Politehnic din Iasi

Indexação

ISI Web of Knowledge - 1 Citação

ISI Web of Science

Scopus - 1 Citação

Classificação Científica

FOS: Ciências exactas e naturais > Ciências da terra e ciências do ambiente

CORDIS: Ciências Naturais > Ciências do ambiente > Ciências da água

Projetos Associados

LA 20 - Projeto Estratégico-LA 20 - 2011-2012

Outras Informações

ID Authenticus: P-002-3QF

DOI: 10.30638/eemj.2012.250

Abstract (EN): The objective of this work was to study the growth of microalgae Chlorella fusca ACOI 621, Chlorella vulgaris ACOI 879, Scenedesmus acutus ACOI 538 and Scenedesmus obliquus ACOI 550, in the presence and absence of Cr(VI). The microalgae growth was assessed as a function of different parameters, particularly, temperature, pH and Cr(VI) addition. Although growth inhibition due to Cr(VI) toxicity is rather visible for Cr(VI) >= 5 mg L-1, concentrations up to 1 mg L-1 seem not to seriously affect the algal growth. The production of metabolites (expressed in terms of dissolved organic carbon released from the microalgae to the solution) EXPRESSES the inhibition caused by toxic levels of Cr(VI) in the four microalgae, which adversely affects the sedimentation. The more marked effect of Cr(VI) on algal growth is observed in C. vulgaris culture and all these microalgae can be used for the removal of heavy metals from wastewaters. All in all, C. fusca appears to be the best choice for work involving heavy metal removal.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10