کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10389842 | 884402 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Lead adsorption from aqueous solution onto siderite
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Lead adsorption from aqueous solution onto siderite Lead adsorption from aqueous solution onto siderite](/preview/png/10389842.png)
چکیده انگلیسی
In this paper, the ability of siderite to remove Pb2+ from aqueous solution by adsorption has been investigated through batch experiments. The Pb2+ adsorption property of the siderite was evaluated as a function of pH, siderite dosage, initial Pb2+ concentration, and temperature. Maximum Pb2+ adsorption yield was obtained to be 99.6% for initial Pb2+ concentration of 50 mg/l at 25 °C and pH 2.97 for 180 min in the presence of 10 g/l siderite. Adsorption data obtained at 25, 30 and 35 °C showed that the adsorption process fitted first-order adsorption rate expression and Langmuir and Freundlich adsorption models. Adsorption capacities of siderite at 25, 30 and 35 °C were found to be 10.32, 12.45 and 14.06 mg Pb2+/g siderite, respectively. Adsorption enthalpy and activation energy values were calculated to be 49.73 and 32.49 kJ/g mol from the isotherm and kinetic data, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 42, Issue 3, April 2005, Pages 259-264
Journal: Separation and Purification Technology - Volume 42, Issue 3, April 2005, Pages 259-264
نویسندگان
Mehmet Erdem, Arzu Ãzverdi,