کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
579793 | 877826 | 2011 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modeling studies on simultaneous adsorption of phenol and resorcinol onto granular activated carbon from simulated aqueous solution
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کلمات کلیدی
EPAGACMOEFUV–Vis - UV-VisEnvironmental Protection Agency - آژانس حفاظت از محیط زیستUltraviolet–visible - اشعه ماوراء بنفش قابل مشاهده استAdsorption isotherms - ایزوترم جذبResorcinol - رزورسینولWorld Health Organization - سازمان بهداشت جهانیPhenol - فنل Granular activated carbon - کربن فعال گرانولWHO - که
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The modelling study on simultaneous adsorption of phenol and resorcinol onto granular activated carbon (GAC) in multicomponent solution was carried out at 303Â K by conducting batch experiments at initial concentration range of 100-1000Â mg/l. Three equilibrium isotherm models for multicomponent adsorption studies were considered. In order to determine the parameters of multicomponent adsorption isotherms, individual adsorption studies of phenol and resorcinol on GAC were also carried out. The experimental data of single and multicomponent adsorption were fitted to these models. The parameters of multicomponent models were estimated using error minimization technique on MATLAB R2007a. It has been observed that for low initial concentration of adsorbate (100-200Â mg/l), modified Langmuir model represents the data very well with the adsorption constant (Q0), 216.1, 0.032 and average relative error (ARE) of 8.34, 8.31 for phenol and resorcinol respectively. Whereas, for high initial concentration of adsorbate (400-1000Â mg/l), extended Freundlich model represents the data very well with adsorption constant (KF) of 25.41, 24.25 and ARE of 7.0, 6.46 for phenol and resorcinol respectively. The effect of pH of solution, adsorbent dose and initial concentrations of phenol and resorcinol on adsorption behaviour was also investigated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 185, Issue 1, 15 January 2011, Pages 287-294
Journal: Journal of Hazardous Materials - Volume 185, Issue 1, 15 January 2011, Pages 287-294
نویسندگان
Shashi Kumar, Mohd. Zafar, Jitendra K. Prajapati, Surendra Kumar, Sivaram Kannepalli,