کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
585393 877912 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Removal of boron from aqueous solution by adsorption on Al2O3 based materials using full factorial design
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
Removal of boron from aqueous solution by adsorption on Al2O3 based materials using full factorial design
چکیده انگلیسی
This paper aims the adsorption of boron from aqueous solution onto Siral 30 and Pural using 23 full factorial design. The effect of individual variables and their interactional effects for boron adsorption were also determined. From the statistical analysis, it is inferred that as pH and temperature increased boron adsorption from aqueous solution decreased. Siral 30 was found to be more efficient adsorbent than Pural. The unimportant factor affecting boron adsorption from aqueous solution was also verified by using Fisher adequacy test. At the 90% confidence level, the type of adsorbent, temperature and type of adsorbent-temperature interaction was effective on boron adsorption from aqueous solution. The experimental results were fitted to the Langmuir, Freundlich and Dubinin-Radushkevich (DR) equations to find out adsorption capacities. In most cases, the results indicate that Freundlich and DR equations are well described with the sorption data. The adsorption capacity values of Siral 30 calculated from Freundlich and DR equation was greater than that of Pural. The thermodynamic parameters were also estimated and the adsorption process was not spontaneous nature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 138, Issue 1, 2 November 2006, Pages 60-66
نویسندگان
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