Effect of low molecular weight organic acids on adsorption and desorption of fluoride on variable charge soils
文献类型：期刊论文
| 作者 | Xu, RK; Wang, YY; Zhao, AZ; Ji, GL; Zhang, H |
| 刊名 | ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
 |
| 出版日期 | 2006-02-01 |
| 卷号 | 28期号:1-2页码:141-146 |
| 关键词 | Al dissolution fluoride Haplic Acrisol organic acids Rhodic Ferralsol |
| ISSN号 | 0269-4042 |
| DOI | 10.1007/s10653-005-9023-z |
| 通讯作者 | Xu, RK(rkxu@issas.ac.cn) |
| 英文摘要 | The effect of four low molecular weight organic acids on F- adsorption by two variable charge soils was investigated using a batch method. The organic acids reduced F- adsorption through competition by the acids with F- for sorption sites. Oxalic and malonic acids, both of which have simpler chemical structures, were more effective than citric or malic acid. The effect of organic acids on F- adsorption was more prominent at higher pH values and with larger amounts of the organic acids. The desorption study showed that the organic acids enhanced the desorption of F- adsorbed by the soils. In the control and malic acid systems, desorption increased sharply with decreasing pH, while in the oxalic acid system, desorption rose slightly with decreasing pH. Desorption also increased with increasing amount of organic acid added. There are two possible mechanisms for the effect of the organic acids on F- adsorption and desorption: (1) competition of the organic acids with F- for adsorption sites and (2) dissolution of the adsorbents, especially dissolution of soil Al. |
| 收录类别 | ISTP ; SCI |
| WOS关键词 | ALUMINUM ; SORPTION ; ANIONS ; RHIZOSPHERE |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Public, Environmental & Occupational Health ; Water Resources |
| WOS类目 | Engineering, Environmental ; Environmental Sciences ; Public, Environmental & Occupational Health ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000237333800019 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558576 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Xu, RK |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China 2.Tennessee Technol Univ, Dept Chem, Cookeville, TN 38505 USA |
| 推荐引用方式 GB/T 7714 | Xu, RK,Wang, YY,Zhao, AZ,et al. Effect of low molecular weight organic acids on adsorption and desorption of fluoride on variable charge soils[J]. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,2006,28(1-2):141-146. |
| APA | Xu, RK,Wang, YY,Zhao, AZ,Ji, GL,&Zhang, H.(2006).Effect of low molecular weight organic acids on adsorption and desorption of fluoride on variable charge soils.ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,28(1-2),141-146. |
| MLA | Xu, RK,et al."Effect of low molecular weight organic acids on adsorption and desorption of fluoride on variable charge soils".ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 28.1-2(2006):141-146. |
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来源：南京土壤研究所
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