REMOVAL OF CADMIUM AND LEAD BY ADAPTED STRAINS OF Pseudomonas aeruginosa AND Enterobacter cloacae

Contenido principal del artículo

Carolina Bojórquez
Martín Gabriel Frías Espericueta
Domenico Voltolina

Resumen

This study determined the cadmium and lead (Cd and Pb) biosorption of two bacterial strains identified with molecular techniques as Pseudomonas aeruginosa and Enterobacter cloacae. These species were isolated from domestic wastewater and adapted to a maximum of 2.83 and 17.4 mg/L of Cd and Pb, respectively. Cd sorption by both strains, determined by atomic absorption spectrophotometry, ranged from 14.4 to 16.5 %. However, the difference between strains was not significant. P. aeruginosa and E. cloacae were comparatively more efficient in the sorption of Pb (82.47and 72.16 % respectively) than for Cd. The amount of Pb absorbed by the bacterial biomass was significantly higher in P. aeruginosa than in E. cloacae cultures.

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Detalles del artículo

Biografía del autor/a

Carolina Bojórquez, Postgrado en Ciencias en Recursos Acuáticos, Universidad Autónoma de Sinaloa, Avenida de los Deportes s/n, Ciudad Universitaria, Mazatlán, Sinaloa. C.P. 82000

Estudiante de Doctorado, Postgrado en Ciencias en Recursos Acuáticos

Martín Gabriel Frías Espericueta, Universidad Autónoma de Sinaloa, Facultad de Ciencias del Mar, Paseo Claussen s/n, colonia Los Pinos, Mazatlán, Sinaloa. C. P. 82000

Profesor-Investigador Titular C

Domenico Voltolina, Centro de Investigaciones Biológicas del Noroeste, Laboratorio UAS-CIBNOR, Paseo Claussen s/n, colonia Los Pinos, Mazatlán, Sinaloa. C. P. 82000

Investigador Tit C, Laboratorio UAS-CIBNOR

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