中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Chemical properties of rare earth elements in typical medical waste incinerator ashes in China

文献类型:期刊论文

作者Zhao, Lijuan ; Zhang, Fu-Shen ; Zhang, Jingxin
刊名JOURNAL OF HAZARDOUS MATERIALS
出版日期2008-10-30
卷号158期号:2015-02-03页码:465-470
关键词Medical waste Incinerator ash Rare earth element Sequential extraction Bioavailability
英文摘要Medical waste (Mw) ashes from different types of MW incinerators were examined to detect the characteristics and environmental impact of rare earth elements (REEs). The results showed that total REE contents in the ash samples ranged from 10.2 to 78.9 mg/kg. REEs in bottom ash were apparently higher than those in fly ash. Average REE contents in the ashes followed the sequence of Ce>La>Nd>Y>Gd>Pr>Sm>Dy>Er>Yb>Ho>Eu>Tb>Lu>Tm. Some of the elements, such as Sin, Dy. Ho. Er, Yb in the ash samples were in normal or nearly normal distribution, but Y. La. Ce, Pr, Nd, Eu, Gd, Th. Tm, Lu were not normally distributed. indicating some of the ash samples were enriched with these elements. Crust-normalized REE patterns indicated that two types of the MW ashes were Obviously enriched with Gd and La. Sequential extraction results showed that REEs in the ash mainly presented as residual fraction, while exchangeable and carbonate fractions were relatively low. DTPA- and EDTA-extraction tests indicated that REEs in the MW ashes were generally in low bioavailability. (C) 2008 Elsevier B.V. All rights reserved.
WOS记录号WOS:000259887400028
源URL[http://ir.rcees.ac.cn/handle/311016/22019]  
专题生态环境研究中心_环境纳米材料实验室
推荐引用方式
GB/T 7714
Zhao, Lijuan,Zhang, Fu-Shen,Zhang, Jingxin. Chemical properties of rare earth elements in typical medical waste incinerator ashes in China[J]. JOURNAL OF HAZARDOUS MATERIALS,2008,158(2015-02-03):465-470.
APA Zhao, Lijuan,Zhang, Fu-Shen,&Zhang, Jingxin.(2008).Chemical properties of rare earth elements in typical medical waste incinerator ashes in China.JOURNAL OF HAZARDOUS MATERIALS,158(2015-02-03),465-470.
MLA Zhao, Lijuan,et al."Chemical properties of rare earth elements in typical medical waste incinerator ashes in China".JOURNAL OF HAZARDOUS MATERIALS 158.2015-02-03(2008):465-470.

入库方式: OAI收割

来源:生态环境研究中心

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