Sorption isotherm was plotted between the metal uptake (q)
and the metal residual concentration in the solution (Ce). Higher
regression correlation coefficient for Langmuir than Freundlich
model (0.977 vs. 0.884, respectively) suggesting that the experiment
data fitted well with the linearize Langmuir sorption model
and this model is more suitable for describing the biosorption
equilibrium of Cd (II) by Ochrobactrum sp. GDOS in the studied
concentration range (50–350 mg/L) (Fig. 3a and b). From the slope
and intercept of the straight portion of the plot the values of