Biosorption of Cadmium and Manganese Using Free Cells of Klebsiella sp. Isolated from Waste Water.

ABSTRACT: In the present study, we evaluated a bacterium that was isolated from waste water for its ability to take up cadmium and manganese. The strain, identified both biochemically and by its 16S rRNA gene sequence as Klebsiella, was named Yangling I2 and was found to be highly resistant to heavy metals. Surface characterization of the bacterium via SEM revealed gross morphological changes, with cells appearing as biconcave discs after metal exposure rather than their typical rod shape. The effects of pH, temperature, heavy metal concentration, agitation and biomass concentration on the uptake of Cd(II) and Mn(II) was measured using atomic absorption spectrophotometry. The results showed that the biosorption was most affected by pH and incubation temperature, being maximized at pH 5.0 and 30°C, w

SUBMITTER: Hou Y 

PROVIDER: S-EPMC4623521 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature