کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
581222 | 1453158 | 2009 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The color removal of dye wastewater by magnesium chloride/red mud (MRM) from aqueous solution
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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: The color removal of dye wastewater by magnesium chloride/red mud (MRM) from aqueous solution The color removal of dye wastewater by magnesium chloride/red mud (MRM) from aqueous solution](/preview/png/581222.png)
چکیده انگلیسی
In this study, the MgCl2/red mud system (MRM) was used to investigate the color removal efficiency of dye solutions. Parameters such as the effect of the dosage of red mud (RM) and MgCl2 have been studied. The effect of pH on the conversion rate of Mg2+ has also been studied. The color removal efficiency of MRM was compared with that of PAC/RM and PAC/NaOH. Meanwhile, the color removal efficiency of RM was compared with that of NaOH. The results show that the MRM system can remove more than 98% of the coloring material at a dosage of 25Â g RM/L dye solution and a volume of 1.5Â mL MgCl2/L dye solution in the decolorization process of reactive dye, acid dye and direct dye. The color removal efficiency was better than PAC/RM and PAC/NaOH system. The adsorption data have been analyzed using Langmuir and Freundlich isotherms. The results indicated that both models provide the best correlation of the experimental data. The decolorization mechanism of MRM was discussed, too. The MRM system was a viable alternative to some of the more conventional forms of chemical treatment of dye solutions and also provided another way to make use of industrial waste red mud.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 170, Issues 2â3, 30 October 2009, Pages 690-698
Journal: Journal of Hazardous Materials - Volume 170, Issues 2â3, 30 October 2009, Pages 690-698
نویسندگان
Qi Wang, Zhaokun Luan, Ning Wei, Jin Li, Chengxi Liu,