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- 저자 : S. Rangabhashiyam (검색결과 1 건)
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Biosorption of Tm(III) by free and polysulfone-immobilized Turbinaria conoides biomass
S. Rangabhashiyam,K. Vijayaraghavan 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.80 No.-
The current investigation focus on the use of brown alga Turbinaria conoides (TC) and polysulfoneimmobilized Turbinaria conoides (PITC) for the biosorption of rare earth element Thulium (Tm(III)) fromaqueous systems. To attain the highest removal of Tm(III), the process parameters including theequilibrium pH, Tm(III) concentration and biosorption time were optimized. The characterizationtechniques were used to analyse the morphological features and elemental analysis of the biosorbents. The isotherm models of selective two and three parameters were subjected to inspect the equilibriumdata. The biosorption datafitted to the different biosorption kinetic models. Results illustrated that bothTC and PITC displayed higher biosorption capacity of 200.5 and 157.9 mg/g, respectively. Through kinetictrials, we identified delay in equilibrium attainment for PITC and the data were described withintraparticle diffusion model. TC and PITC presented comparable results with biosorption equilibriumattained in 200 min, optimum equilibrium solution pH 5.0 and exhibited maximum biosorption capacityfor the initial Tm(III) concentrations of 500 mg/L. Recovery studies represented that the maximumdesorption efficiency attained using 0.01 M HCl and PITC presented potential uptake capacity of Tm(III)during the entire 10 biosorption–desorption cycles.
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