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- W2330720646 abstract "In the present study, the biosorption capacity of Stenotrophomonas humi and Micrococcus luteus has been assessed for removal of cadmium from the synthetic solution under varying Cd2+ concentrations (50–250 ppm), pH (2–8), and contact time (10–270 min). The maximum biosorption capacity (qm) of S. humi and M. luteus were 97.08 and 42.55 mg/g at 30°C, respectively. The experimental isotherm data were analyzed using the Langmuir, Freundlich and Dubinin–Radushkevich (D–R) equations. The equilibrium data fit well in the Freundlich isotherm for S. humi and M. luteus. The RL values ranged between 0 and 1, and rate constant value of Cd2+ uptake demonstrated its efficient removal from the solution. Kinetic study showed that pseudo-second-order model describes the biosorption process better than the Lagergren pseudo-first-order and intraparticle diffusion model. The thermodynamic parameters such as free energy, entropy, and enthalpy change for the adsorption of Cd2+ have also been computed and discussed. Based on D–R isotherm value, physiosorption appears to be one of the major mechanisms for adsorption of Cd2+ by the bacteria. The interactions between heavy metals and functional groups on the cell wall surface of bacterial biomass were confirmed by Fourier transform infrared spectroscopy (FTIR) analysis, which indicate the possible removal of Cd2+ ions from the environment by S. humi and M. luteus." @default.
- W2330720646 created "2016-06-24" @default.
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- W2330720646 date "2013-12-01" @default.
- W2330720646 modified "2023-10-16" @default.
- W2330720646 title "Cadmium biosorption byStenotrophomonas humiandMicrococcus luteus: kinetics, equilibrium and thermodynamic studies" @default.
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- W2330720646 doi "https://doi.org/10.1080/19443994.2013.780983" @default.
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