کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
584795 | 877898 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adsorption of direct dye on palm ash: Kinetic and equilibrium modeling
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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چکیده انگلیسی
Palm ash, an agriculture waste residue from palm-oil industry in Malaysia, was investigated as a replacement for the current expensive methods of removing direct blue 71 dye from an aqueous solution. The experimental data were analyzed by the Langmuir and Freundlich models of adsorption. Equilibrium data fitted well with Freundlich model in the range of 50-600 mg/L. The equilibrium adsorption capacity of the palm ash was determined with the Langmuir equation and found to be 400.01 mg dye per gram adsorbent at 30 °C. The rates of adsorption were found to conform to the pseudo-second-order kinetics with good correlation. The results indicate that the palm ash could be employed as a low-cost alternative to commercial activated carbon.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 141, Issue 1, 6 March 2007, Pages 70-76
Journal: Journal of Hazardous Materials - Volume 141, Issue 1, 6 March 2007, Pages 70-76
نویسندگان
A.A. Ahmad, B.H. Hameed, N. Aziz,