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Behavior Adsorption Study of Phenol, Picric acid and p-Amino phenol By Powder Bentonite | ||
| Iraqi National Journal Of Chemistry | ||
| Article 1, Volume 0, Issue 29, 2014, Pages 59-67 | ||
| Authors | ||
| Lekaa Hussain Khdeem; Hussain Jassam Mohammed; Abbas Hmood Al-Khafagy | ||
| Abstract | ||
| Abstract Adsorption studies for phenol , picric acid and p- Amino phenol removal from aqueous solutions on bentonite were carried out. Batch kinetic and isotherm studies were carried out under varying experimental conditions at contact time ,initial phenol ,picric acid and p-Amino phenol concentration, adsorbent dose and pH .The adsorption data fitted the Langmuir and Freundlich isotherms equations in the whole rang of concentrations studied .The adsorption capacity of compounds was higher (12.22-27.26 mg.g-1 )with the lower values of the temperature (18-48Cº),higher values of the initial pH (3,10) and agitation rate(180rpm).The equilibrium in the solution was observed with in 45 min of opration. The equilibrium isotherm for each compound was determined to describe the adsorption processes .The results obtained shows the isotherms were (S3,L3) according to Giles classification .The thermodynamic parameters at compounds such as ΔG, ΔH, ΔS of adsorption were calculated. | ||
| Keywords | ||
| Bentoinite; adsorption isotherm; phenols compounds | ||
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