Bioremoval of Cobalt(II) from Aqueous Solution by Three Different and Resistant Fungal Biomasses

Autor: Víctor M. Martínez Juárez, Milka Elena Escalera Chávez, Adriana S. Rodríguez Pérez, Ismael Acosta Rodríguez, Juan Manuel Vargas Morales, Christian Michel Cuello, Gustavo Gallegos Fonseca, Alejandra Muñoz Morales, Juan F. Cárdenas González
Rok vydání: 2019
Předmět:
Zdroj: Bioinorganic Chemistry and Applications
Bioinorganic Chemistry and Applications, Vol 2019 (2019)
ISSN: 1687-479X
1565-3633
DOI: 10.1155/2019/8757149
Popis: The biosorption of Co(II) on three fungal biomasses: Paecilomyces sp., Penicillium sp., and Aspergillus niger, was studied in this work. The fungal biomass of Paecilomyces sp. showed the best results, since it removes 93% at 24 h of incubation, while the biomasses of Penicillium sp. and Aspergillus niger are less efficient, since they remove the metal 77.5% and 70%, respectively, in the same time of incubation, with an optimum pH of removal for the three analyzed biomasses of 5.0 ± 0.2 at 28°C. Regarding the temperature of incubation, the most efficient biomass was that of Paecilomyces sp., since it removes 100%, at 50°C, while the biomasses of Penicillium sp. and Aspergillus niger remove 97.1% and 94.1%, at the same temperature, in 24 hours of incubation. On the contrary, if the concentration of the metal is increased, the removal capacity for the three analyzed biomasses decreases; if the concentration of the bioadsorbent is increased, the removal of the metal also increases. It was observed that, after 4 and 7 days of incubation, 100%, 100%, and 96.4% of Co(II) present in naturally contaminated water were removed, respectively.
Databáze: OpenAIRE
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