کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10277149 | 464272 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Competitive adsorption of As(V) with co-existing ions on porous hematite in aqueous solutions
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Competitive adsorption of As(V) with co-existing ions on porous hematite in aqueous solutions Competitive adsorption of As(V) with co-existing ions on porous hematite in aqueous solutions](/preview/png/10277149.png)
چکیده انگلیسی
Effects of co-existing ions on the adsorption of As(V) in aqueous solutions by porous hematite have been investigated in this work. The porous hematite was prepared by the goethite concentrate which was concentrated from the iron oxide tailings. The co-existing ions include Clâ, NO3â, HCO3â, SO42â, PO43â anions and Na+, K+, Mg2+, Ca2+. The arsenic aqueous solutions with these co-existing ions were simulated using chemical reagents and deionized water. The adsorption isotherm and kinetics were all examined. The experimental results showed that HCO3â and PO43â anions inhibited the As(V) adsorption, whereas Mg2+ and Ca2+ ions have promoting effects on the As(V) adsorption. Furthermore, the ionic strength has no significant effect on the arsenate adsorption to the porous hematite. These results may be attributed to competitive adsorption of As(V) on porous hematite in aqueous solutions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Chemical Engineering - Volume 3, Issue 3, September 2015, Pages 1497-1503
Journal: Journal of Environmental Chemical Engineering - Volume 3, Issue 3, September 2015, Pages 1497-1503
نویسندگان
Guangcheng Yang, Yanyan Liu, Shaoxian Song,