کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
584492 1453182 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A comparative study of linear and non-linear regression analysis for ammonium exchange by clinoptilolite zeolite
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
A comparative study of linear and non-linear regression analysis for ammonium exchange by clinoptilolite zeolite
چکیده انگلیسی
Ammonium ion exchange from aqueous solution using clinoptilolite zeolite was investigated at laboratory scale. Batch experimental studies were conducted to evaluate the effect of various parameters such as pH, zeolite dosage, contact time, initial ammonium concentration and temperature. Freundlich and Langmuir isotherm models and pseudo-second-order model were fitted to experimental data. Linear and non-linear regression methods were compared to determine the best fitting of isotherm and kinetic model to experimental data. The rate limiting mechanism of ammonium uptake by zeolite was determined as chemical exchange. Non-linear regression has better performance for analyzing experimental data and Freundlich model was better than Langmuir to represent equilibrium data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 144, Issues 1–2, 1 June 2007, Pages 432-437
نویسندگان
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