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Author(s): Francisca M. Santos
Luciana P. Mazur
Diego A. Mayer
Vítor J. P. Vilar
José C. M. Pires
Title: Inhibition effect of zinc, cadmium, and nickel ions in microalgal growth and nutrient uptake from water: An experimental approach
Issue Date: 2019
Abstract: The effect of heavy metals (Cd, Ni, and Zn) on the growth of Chlorella vulgaris and nutrient uptake was assessed. C. vulgaris was cultivated in a synthetic solution with a single or ternary metal system. Biomass growth was well predicted considering a competitive inhibition model. The higher specific growth rate (0.34 d(-1)), biomass productivity (98.1 mg . L-1 . d(-1)), heavy metals uptake efficiency (85%) was obtained for the cultures with Cd and Zn ions. The higher nutrient removal was observed in the presence of Cd ions (91% nitrogen and 99% phosphorus). The highest inhibition on biomass growth (> 88%) was observed in the presence of nickel ions. In the ternary system, microalgae growth inhibition was similar to that observed in the presence of only nickel ions. Although, wastewaters containing nutrients and residual concentrations of zinc and cadmium ions can be used for C. vulgaris production, in the presence of residual concentrations of nickel ions, biomass growth is negligible.
Related Information: info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/P2020|COMPETE - Projetos em Todos os Domínios Científicos/POCI-01-0145-FEDER-031736/Intensificação do processo de produção e valorização de microalgas/PIV4Algae
info:eu-repo/grantAgreement/Comissão de Coordenação e Desenvolvimento Regional do Norte/P2020|Norte2020-Projetos Integrados ICDT/NORTE-01-0145-FEDER-000005/LEPABE-2-ECO-INNOVATION/LEPABE-2-ECO-INNOVATION
info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projetos Estratégicos/UID/EQU/00511/2013 - POCI-01-0145-FEDER-006939/Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia/LEPABE
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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