کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
580023 | 1453147 | 2010 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pyridine and phenol removal using natural and synthetic apatites as low cost sorbents: Influence of porosity and surface interactions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Pyridine and phenol removal using natural and synthetic apatites as low cost sorbents: Influence of porosity and surface interactions Pyridine and phenol removal using natural and synthetic apatites as low cost sorbents: Influence of porosity and surface interactions](/preview/png/580023.png)
چکیده انگلیسی
A natural phosphate rock and two synthetic mesoporous hydroxyapatites were evaluated for the removal of pyridine and phenol from aqueous solutions. Experiments performed by the batch method showed that the sorption process occurs by a first order reaction for both pyridine and phenol. In contrast, the Freundlich model was able to describe sorption isotherms for phenol but not for pyridine. In parallel, the three apatites exhibit similar pyridine sorption capacities whereas phenol loading was in agreement with their respective specific surface area. This was attributed to the strong interaction arising between pyridine and apatite surface that hinders further inter-particular diffusion. This study suggests that, despite its low specific surface area, natural phosphate rock may be used as an efficient sorbent material for specific organic pollutants, with comparable efficiency and lower processing costs than some activated carbons.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 181, Issues 1â3, 15 September 2010, Pages 736-741
Journal: Journal of Hazardous Materials - Volume 181, Issues 1â3, 15 September 2010, Pages 736-741
نویسندگان
H.Bouyarmane H.Bouyarmane, S.El Asri, A. Rami, C. Roux, M.A. Mahly, A. Saoiabi, T. Coradin, A. Laghzizil,