The color removal of dye wastewater by magnesium chloride/red mud (MRM) from aqueous solution

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	The color removal of dye wastewater by magnesium chloride/red mud (MRM) from aqueous solution
	Wang, Qi; Luan, Zhaokun; Wei, Ning; Li, Jin; Liu, Chengxi
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2009-10-30
卷号	170 期号:1 页码:690-698
关键词	Magnesium chloride Red mud Dye wastewater Solid waste Decolorization
中文摘要	In this study, the MgCl(2)/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 MgCl(2) have been studied. The effect of pH on the conversion rate of Mg(2+) 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 25 g RM/L dye solution and a volume of 1.5 ml. MgCl(2)/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. (C) 2009 Elsevier B.V. All rights reserved.
WOS记录号	WOS:000270310500023
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/21746]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Wang, Qi,Luan, Zhaokun,Wei, Ning,et al. The color removal of dye wastewater by magnesium chloride/red mud (MRM) from aqueous solution[J]. JOURNAL OF HAZARDOUS MATERIALS,2009,170(1):690-698.
APA	Wang, Qi,Luan, Zhaokun,Wei, Ning,Li, Jin,&Liu, Chengxi.(2009).The color removal of dye wastewater by magnesium chloride/red mud (MRM) from aqueous solution.JOURNAL OF HAZARDOUS MATERIALS,170(1),690-698.
MLA	Wang, Qi,et al."The color removal of dye wastewater by magnesium chloride/red mud (MRM) from aqueous solution".JOURNAL OF HAZARDOUS MATERIALS 170.1(2009):690-698.