کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
588613 878585 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Adsorption of copper and nickel on Na-bentonite
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
Adsorption of copper and nickel on Na-bentonite
چکیده انگلیسی

The removal of copper and nickel from aqueous solution on the Na-bentonite has been studied under static conditions. Experiments were carried out as a function of solution pH, dosage of Na-bentonite, contact time and temperature. The adsorption equilibrium for nickel and copper onto Na-bentonite is reached in 200 min. The adsorption of copper and nickel is pH dependent in the pH range 2–9. The kinetic process of adsorption can be described by the pseudo-second-order kinetic equation excellently and the adsorption isotherm be fitted to the Langmuir model by means of regression analyses very well. The adsorption capacities follow the order of Cu2+ > Ni2+ in single-component systems and competitive adsorption capacities in order decreasing is Cu2+ > Ni2+ in binary-component systems.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Safety and Environmental Protection - Volume 88, Issue 1, January 2010, Pages 62–66
نویسندگان
, ,