Nickel Biosorption by Acinetobacter Baumannii and Pseudomonas Aeruginosa Isolated from Industrial Wastewater
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| Autores: | , , |
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| Formato: | artículo original |
| Fecha de Publicación: | 2006 |
| Descripción: | Nickel biosorption ability was evaluated in two bacterial strains: Acinetobacter baumannii UCR-2971 and Pseudomonas aeruginosa UCR-2957, resulting in greatest adsorption at pH 4.5 and a residence time of 100 minutes. Biosorption isotherms showed that the process follows the Langmuir model. The maximum adsorption rates (Nmax) were 8.8 and 5.7 mg·g-1 for A. baumannii and P. aeruginosa, respectively; however, affinity constants suggest that P. aeruginosa (K=1.28) has higher affinity for nickel than A. baumannii (K=0.68). It is suggested that both strains could be used for wastewater treatment, as long as the concentration of Ni2+ is within the range of mg·L-1. |
| País: | Kérwá |
| Institución: | Universidad de Costa Rica |
| Repositorio: | Kérwá |
| Lenguaje: | Inglés |
| OAI Identifier: | oai:kerwa.ucr.ac.cr:10669/90563 |
| Acceso en línea: | https://www.scielo.br/j/bjm/a/BNgDfMPNjHCV5nkyTGHRByt/abstract/?lang=en https://hdl.handle.net/10669/90563 |
| Palabra clave: | Biosorption NICKEL Acinetobacter baumannii Pseudomonas aeruginosa WASTEWATER TREATMENT |