| Inorganic Speciation of Rare Earth Elements in Chaohu Lake and Longganhu Lake, East China |
| |
| 作者姓名： | 朱兆洲 刘丛强 王中良 李军 周志华 |
| |
| 作者单位： | State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China Graduate School of Chinese Academy of Sciences Beijing 100039 China，State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China，State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China，State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China Graduate School of Chinese Academy of Sciences Beijing 100039 China，State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China Graduate School of Chinese Academy of Sciences Beijing 100039 China |
| |
| 基金项目： | ProjectsupportedbytheChineseAcademyofSciences(KZCX3-SW-140,KZCX1-SW-12) |
| |
| 摘 要： | Geochemical behaviors of the rare earth elements(REEs)in river and lake water bodies are dependentmainly on water chemistry and other factors,andhence their variationsin concentration and compositionreflect changes of various environmental variables.There…
|
| 关 键 词： | 华东地区 湖泊 MINTEQ 物种形成 稀土 |
| 文章编号： | 1002-0721（2005）06-0768-05 |
| 收稿时间： | 2005-08-09 |
| 修稿时间： | 2005-10-20 |
Inorganic Speciation of Rare Earth Elements in Chaohu Lake and Longganhu Lake, East China |
| |
| Zhu Zhaozhou,Liu Congqiang,Wang Zhongliang,Li Jun,Zhou Zhihua.Inorganic Speciation of Rare Earth Elements in Chaohu Lake and Longganhu Lake, East China[J].Journal of Rare Earths,2005,23(6):768-772. |
| |
| Authors: | Zhu Zhaozhou Liu Congqiang Wang Zhongliang Li Jun Zhou Zhihua |
| |
| Abstract: | Inorganic speciation of dissolved rare earth elements (REEs) were calculated for Chaohu Lake and Longganhu Lake by using the program MINTEQ 2. 30. The result shows that REE-Carbonate complexes, which account for more than 93 % of total REE are the dominate and typically species in solution. Moreover, carbonator complexes (LnCO3 ) were predicted to be the dominant species when pH between 7.2 and 8.0 and bicarbonate complexes (Ln (CO3)2-) were predicted to be the dominant species when pH ＞ 8.0. The free ion specie (i. e., Ln3 ) increases in these waters with pH decreasing and accounts for about 5. 03 %. The percentage of REE-phosphate complexes account for 1.61% of the dissolved REEs. REE-phosphate for light REEs complexes are supersaturated in Chaohu Lake and Longganhu Lake. Furthermore,LnPO4 for heavy REEs are supersaturated in west of Chaohu Lake in high water period. PO43- is responsible for limiting the dissolved REEs concentrations. REE-sulfate, REE-chloride, REE-fluoride and REE-hydroxide complexes, are negligible and generally account for less than 1% of the total dissolved REEs. |
| |
| Keywords: | MINTEQ speciation CO32- PO43- rare earths |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
