Adsorption Equilibrium, Kinetics, Thermodynamics and Dynamic Separation of Magnesium and Calcium Ions from Industrial Wastewater by New Strong Acid Cation Resin of SPVC | [Pakistan Journal of Analytical & Environmental Chemistry • 2021]

Author(s):

1. Dilfuza Nuriddinova: Department of Natural Sciences, Karshi State University,Kuchabog 17, Karshi, 180100,Uzbekistan

2. Farkhod Yusupov: Institute of General and Nonorganic Chemistry, Academy of the science of the Republic of Uzbekistan, Feruza 39,Mirzo Ulugbek, Tashkent, Uzbekistan

3. Elyor Berdimurodov: Department of Natural Sciences, Karshi State University,Kuchabog 17, Karshi,Uzbekistan

4. Normahmat Yodgorov: Institute of General and Nonorganic Chemistry, Academy of the science of the Republic of Uzbekistan, Feruza 39,Mirzo Ulugbek, Tashkent, Uzbekistan

5. Murod Mamanazarov: Institute of General and Nonorganic Chemistry, Academy of the science of the Republic of Uzbekistan, Feruza 39,Mirzo Ulugbek, Tashken, Uzbekistan

Abstract:

In the research work, the adsorption equilibrium, kinetics, thermodynamics and dynamic separation of magnesium and calcium ions from industrial wastewater by new strong acid cation resin of SPVC (sulphonated polyvinylchloride) were investigated. The sorption capacity of the studied resin was 3.78 mmol/g and 3.74 mmol/g for magnesium and calcium ions, respectively, according to Langmuir isotherm. It was found that the pseudo-first-order model was better fitted for the adsorption kinetics of magnesium and calcium ions on the resin. The dynamic separation results confirmed that the selected resin effectively separated magnesium and calcium ions from industrial wastewater in the dynamic condition. The change of the standard Gibbs free energy (?G?) and enthalpy (?H?), and entropy (?S?) were calculated. The obtained results confirmed that the adsorption of magnesium and calcium ions on the selected resin is endothermic.

Page(s): 128-138

DOI: DOI not available

Published: Journal: Pakistan Journal of Analytical & Environmental Chemistry, Volume: 22, Issue: 1, Year: 2021

Keywords:

kinetics , Adsorption equilibrium , Magnesium and calcium ions , Dynamic separation

References:

References are not available for this document.

Citations

Citations are not available for this document.

Citations

Downloads

Views