Evaluation of Pseudomonas aeruginosa an innovative bioremediation tool in multi metals ions from simulated system using multi response methodology

Statistical optimization of process parameters for the simultaneous adsorption of Cr(VI) and phenol onto Fe-treated tea waste biomass

“…5a, b for response Y 2 (percentage removal of phenol). For response Y 1, the linear effects of the process variables X 1 (pH), X 2 (adsorbent dose), X 3 (initial concentration of Cr(VI) are highly significant, given in Table 5, which is confirmed by high F values and low P value (P \ 0.0001) (Fereidouni et al 2009;Singh et al 2013), but the effect of X 4 (initial concentration of phenol) was not highly significant as the P values obtained were P [ 0.005. Similarly, the linear effects of process variables (X 1 , X 2 , X 3 , and X 4 ) were examined onto the percentage removal of phenol (response Y 2 ) given in Table 6 which shows that effect of pH (X 1 ), adsorbent dose (X 2 ), and initial concentration of phenol (X 4 ) was highly significant.…”

“…The interactive effects of four most important operating variables, pH (X 1 ), adsorbent dose (X 2 ), initial concentration of Cr(VI) (X 3 ), and initial concentration of phenol (X 4 ), were determined onto the percentage removal of Cr(VI) and phenol. with five replicates at the center point was used to optimize the selected key variables (X 1 , X 2 , X 3, and X 4 ) (Singh et al 2013). The coded values of the process parameters were determined by the following equation (Rajasimman et al 2009;Satapathy and Das 2014;De Sales et al 2013 …”

The Pseudomonas community in metal-contaminated sediments as revealed by quantitative PCR: a link with metal bioavailability

“…Indeed, some bacteria are known to immobilize metals with phosphate [61e63], a process that may be termed biomineralization. Finally, bacteria in the P. aeruginosa group (one strain in MetalEurop) are also well adapted to metal stresses either through adsorption to the cell surface [64] or by metal efflux [65,66]. All the Pseudomonas isolates obtained in this study were able to tolerate metals, particularly Cu, Zn and As.…”

Bioremediation of a petroleum hydrocarbon-contaminated Antarctic soil: Optimization of a biostimulation strategy using response-surface methodology (RSM)

“…As previously reported, RSM is useful to optimize bioremediation processes (Singh et al 2013;Lim et al 2013), because it allows achieving a higher removal efficiency and the consumption of lower nutrient levels.…”