Research Article
Arsenic Resistance and Biosorption by Isolated Rhizobacteria from the Roots of Ludwigia octovalvis
Table 2
Kinetic constants for arsenic biosorption by rhizobacteria.
| | Rhizobacteria | Pseudo-first-order kinetic model | Pseudo-second-order kinetic model | Pore diffusion model | Elovich equation | | k1 (h) | qe (mg As/g biomass) | R2 | k2 (mg As/g biomass/h) | qe (mg As/g biomass) | R2 | kd (mg As/g biomass/h1/2) | R2 | Α (mg As/g biomass) | β (mg As/g biomass/h) | R2 |
| | B. cereus | 0.03 | 11.35 | 0.82 | 0.003 | 25.00 | 0.48 | 3.11 | 0.86 | 4.82 | 0.22 | 0.84 | | B. pumilus | 0.02 | 13.20 | 0.63 | 0.08 | 7.46 | 0.75 | — | | — | — | | | B. megaterium | — | — | | 0.09 | 2.19 | 0.72 | 1.82 | 0.34 | 2.62 | 0.40 | 0.31 | | A. globiformis | 0.06 | 12.1 | 0.44 | 0.02 | 23.26 | 0.68 | — | | — | — | | | Staphylococcus lentus | — | — | | — | — | | — | | — | — | | | Sphingomonas paucimobilis | 0.01 | 20.14 | 0.15 | — | — | | — | | — | — | | | E. asburiae | 0.04 | 12.68 | 0.99 | 0.01 | 14.08 | 0.55 | 2.21 | 0.70 | 3.50 | 0.30 | 0.73 | | Pantoea spp. | 0.01 | 11.64 | 0.23 | 0.05 | 6.17 | 0.70 | — | | — | — | | | R. rhizogenes | — | — | | 0.35 | 6.02 | 0.93 | — | | — | — | | | R. radiobacter | — | — | | — | — | | — | | — | — | |
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