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
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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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