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

被引：20

作者：

Bojorquez, Carolina ^{[1
]}

Frias Espericueta, Martn Gabriel ^{[2
]}

Voltolina, Domenico ^{[3
]}

机构：

[1] Univ Autonoma Sinaloa, Posgrado Ciencias Recursos Acuat, Ave Deportes S-N,Ciudad Univ, Mazatlan 82000, Sinaloa, Mexico

[2] Univ Autonoma Sinaloa, Fac Ciencias Mar, Mazatlan 82000, Sinaloa, Mexico

[3] Lab Univ Autonoma Sinaloa, Ctr Invest Biol Noroeste, Mazatlan 82000, Sinaloa, Mexico

来源：

REVISTA INTERNACIONAL DE CONTAMINACION AMBIENTAL | 2016年 / 32卷 / 04期

关键词：

heavy metals; bacterial strains; adaptation; metal removal; BIOSORPTION; RESISTANCE; COPPER; NICKEL;

D O I：

10.20937/RICA.2016.32.04.04

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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.

引用

页码：407 / 412

页数：6

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