کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
153105 456519 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Adsorption of cadmium from aqueous solution by phosphogypsum
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Adsorption of cadmium from aqueous solution by phosphogypsum
چکیده انگلیسی

In the present study, the adsorption of cadmium on phosphogypsum, a waste material from the manufacture of phosphoric acid by wet process, was studied. Before batch adsorption study, phosphogypsum was pre-conditioned by milk of lime. Effect of initial pH on cadmium adsorption was investigated. It was found that cadmium adsorption was dependent on solution pH and maximum cadmium removal was observed in the pH range of 9.5 and 11.5. The Langmuir and Freundlich theories were used to describe the cadmium adsorption process, and the Freundlich isotherm showed the best fit to the process. Maximum adsorption capacity of lime-preconditioned phosphogypsum was found to be 131.58 mg/g.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 140, Issues 1–3, 1 July 2008, Pages 247–254
نویسندگان
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