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	Phosphate immobilization of Pb/sup 2+/
	Du Xuejuan ; Jiang Jianguo ; Wang Jun ; Zhang Yan ; Xu Xin
	2010-05-10 ; 2010-05-10
关键词	Practical Experimental/ contamination health hazards lead pH phosphorus compounds precipitation waste management/ phosphate immobilization lead contamination public health Visual Minteq code precipitation solid waste treatment/ A8670 Environmental science A8130M Precipitation E0230 Environmental issues E0240H Health and safety aspects
中文摘要	The immobilization of aqueous Pb/sup 2+/ by three phosphates, CaHPO/sub 4/, Ca(H/sub 2/PO/sub 4/)/sub 2/ and Na/sub 3/PO/sub 4/, was studied to reduce the impact of lead contamination on the environment and public health. The objective was to find a highly economical Pb/sup 2+/ immobilization method that was effective over a wide pH range. The studies evaluated the effects of reaction time and initial Pb/sup 2+/ concentration. The visual Minteq code was used to model the reactions. The results show that the immobilization of Pb/sup 2+/ by CaHPO/sub 4/, Ca(H/sub 2/PO/sub 4/)/sub 2/, and Na/sub 3/PO/sub 4/ were all completed rapidly by precipitation, with removal rates of 96.9%, 97.5%, and 100% of the total Pb/sup 2+/. The immobilization efficiency increases with increasing initial Pb/sup 2+/ concentration and increasing pH. Na/sub 3/PO/sub 4/ was the most effective phosphate.
语种	中文 ; 中文
出版者	Tsinghua University Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/23575]
专题	清华大学
推荐引用方式 GB/T 7714	Du Xuejuan,Jiang Jianguo,Wang Jun,et al. Phosphate immobilization of Pb/sup 2+/[J],2010, 2010.
APA	Du Xuejuan,Jiang Jianguo,Wang Jun,Zhang Yan,&Xu Xin.(2010).Phosphate immobilization of Pb/sup 2+/..
MLA	Du Xuejuan,et al."Phosphate immobilization of Pb/sup 2+/".(2010).

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