Vol. 8, Issue 6 (2020)
Modelling S sorption in Alfisols under Polyalthia longifolia
Author(s): C Sarangi
Abstract: Sorption phenomenon determines the solubility, availability, mobility and tendency of ion pollution of the environment. A laboratory experiment was conducted in CRD with three replications during 2018 and 2019 with soils collected from P optimized Polyalthia longifolia to study the effect of seven extractants on the sulphur sorption behavior of soils. Sulphate sorptivity was studied by shaking three gram soil for 24 hrs with 15 ml solution of K2SO4 varying in SO4 --concentrations from (0, 25,50,75,100,125 and 150 μg S g-1 of soil called T1,T2,T3,T4,T5,T6 and T7 respectively) in a 50 ml centrifuge tubes at 25 oC for 2hrs. Sorption data were fitted in linear, Langmuir and Freundlich equations and sorption parameters especially sorption maximum (b or Smax), affinity constant (k), maximum buffering capacity (MBC), distribution coefficient (kf), sorption intensity (n), S (kd) and Gibbs free energy (ΔG0) were calculated. In general, sulphate sorption process was favourable, spontaneous, exothermic and controlled by dissociative mechanism.
DOI: 10.22271/chemi.2020.v8.i6x.11010
Pages: 1687-1689 | 338 Views 68 Downloads
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How to cite this article:
C Sarangi. Modelling S sorption in Alfisols under Polyalthia longifolia. Int J Chem Stud 2020;8(6):1687-1689. DOI: 10.22271/chemi.2020.v8.i6x.11010
