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Evaluation of The Potential of Using Attapulgite Clay as Adsorbent For Removal of P-Chloroaniline(PCA) From Aqueous Solutions | ||
| Journal of University of Babylon | ||
| Article 1, Volume 22, Issue 1, 2014, Pages 454-463 | ||
| Authors | ||
| Al-Sharify A.N; Athab Z. H | ||
| Abstract | ||
| In this study used an attapulgite clay as low cost adsorbents for adsorption of p- chloroaniline from aqueous solutions. The factors affecting of adsorption process such as pH , temperature , and equilibrium time were studied, was found the adsorption was increase at the pH values decrease and the optimum adsorption at pH (2), the effect of equilibrium time was also studied and it was found that the best contact equilibrium time at (80) min, and study effect of initial concentration of (PCA). The effect of temperature on the equilibrium adsorption of PCA from aqueous solution using Attapulgite was investigated. Thermodynamic parameters, such as ΔG, ΔH, and ΔS were calculated and the results suggested that the PCA adsorption on Attapulgite clay was a spontaneous and endothermic process. The isotherm of this adsorption was investigated and the adsorption isotherm was found similar to S-shape according to Gilles classification, and that obeys Freundlich isotherm model . | ||
| Keywords | ||
| attapulgite clay; chloroaniline; adsorption Isotherm; thermodynamic parameters | ||
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