Inhibition effect of zinc, cadmium, and nickel ions in microalgal growth and nutrient uptake from water: An experimental approach

• Type: Article in International Scientific Journal
• Date: 2019

Authors

Francisca M. Santos (Author) Other; Luciana P. Mazur (Author) Other; Diego A. Mayer (Author) Other; Vítor J. P. Vilar (Author) Other; José C. M. Pires (Author) FEUP

Journal

Title: Chemical Engineering Journal

Vol. 366

Pages: 358-367

ISSN: 1385-8947

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 3 Citations

ISI Web of Science

Scopus - 11 Citations

INSPEC

Associated Projects

PIV4Algae - Intensificação do processo de produção e valorização de microalgas

LEPABE-2-ECO-INNOVATION - LEPABE-2-ECO-INNOVATION

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

IF/01341/2015 - Configurações de fotobiorreatores para cultivo de microalgas: modelação de bioprocessos e avaliação de sustentabilidade

Other information

Authenticus ID: P-00Q-9KB

DOI: 10.1016/j.cej.2019.02.080

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10