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Iranian Journal of Chemistry and Chemical Engineering، جلد ۳۱، شماره ۳، صفحات ۱۹-۲۷
عنوان فارسی
چکیده فارسی مقاله
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عنوان انگلیسی Removal of Acid Red 14 by Pumice Stone as a Low Cost Adsorbent: Kinetic and Equilibrium Study
چکیده انگلیسی مقاله In this work, removal of C. I. Acid Red 14 was investigated by Pumice stone as a low cost adsorbent. Various parameters such as initial dye solution, contact time and pH were studied. Removal of dye were increased by increasing of contact time and initial dye solution and deceased by increasing of pH. Three isotherm models were studied. Linear and non-linear regression analyses were used for determination of best isotherm model. In addition, Chi-square test parameter (χ2) was used for the comparison of experimental and calculated data that was obtained from equilibrium studies. The results of linear and non-linear regression analysis shows the removal of Acid Red 14 follows the Frundlich isotherm model (r2>0.987, X2=11.1). Fitting of obtained data onto kinetic models show the pseudo second order kinetic model best describe kinetic sorption of Acid Red 14 onto pumice. Mass transfer coefficient was determined at various initial dye solutions and was compared with the same work. The order of external mass transfer coefficient was 10-3-10-4. De-sorption studies demonstrate low regeneration of pumice for Acid Red 14 (9.4%).
کلیدواژه‌های انگلیسی مقاله Adsorption,Equilibrium studies,Pumice,Azo dye,Batch study
نویسندگان مقاله محمدرضا سمرقندی | mohammad reza
department of environmental health engineering and research center for health science, faculty of health, hamadan university of medical science, hamadan, i.r. iran

منصور ضرابی |
department of environmental health engineering, faculty of health, alborz university of medical science, karaj, i.r. iran

محمد نوری سپهر | noori sepehr
department of environmental health engineering, faculty of health, alborz university of medical science, karaj, i.r. iran

رضا پناهی |
department of biotechnology, faculty of chemical engineering, tarbiat modares university, tehran, i.r. iran
سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

مریم فروغی |
department of environmental health engineering, faculty of health, esfahan university of medical science, esfahan, i.r. iran
سازمان اصلی تایید شده: دانشگاه اصفهان (Isfahan university)

نشانی اینترنتی http://www.ijcce.ac.ir/article_5947_df0a927e5cce6eeb01307303ced5c198.pdf
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