Removal of Chromium from a Contaminated Soil Using Oxalic Acid, Citric Acid, and Hydrochloric Acid: Dynamics, Mechanisms, and Concomitant Removal of Non-Targeted Metals
文献类型：期刊论文
| 作者 | Sun, YH; Guan, F; Yang, WW; Wang, FY |
| 刊名 | INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
 |
| 出版日期 | 2019-08-01 |
| 卷号 | 16期号:15页码:2771 |
| 关键词 | chemical leaching soil washing column experiment chromium soil remediation |
| ISSN号 | 1661-7827 |
| DOI | 10.3390/ijerph16152771 |
| 产权排序 | [Sun, Yuhuan ; Guan, Feng ; Yang, Weiwei ; Wang, Fayuan] Qingdao Univ Sci & Technol, Coll Environm & Safety Engn, Qingdao 266042, Shandong, Peoples R China ; [Guan, Feng] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China ; [Wang, Fayuan] Zunyi Normal Univ, Key Lab Soil Resources & Environm Qianbei Guizhou, Zunyi 563002, Peoples R China |
| 文献子类 | Article |
| 英文摘要 | Soil leaching is an effective remediation technique using agents to leach the target pollutants from the soil. However, the dynamics and mechanisms for leaching of Cr and other non-pollutant metals from Cr-contaminated soils are not yet well understood. Here, column leaching experiments were conducted to determine the effect of hydrochloric acid (HCl), citric acid (CA), and oxalic acid (OX) on the leaching of Cr, as well as of Ca, Mg, Fe, and Mn, from a soil contaminated by a Cr slag heap. Acid leaching decreased soil pH and enhanced the mobility of all the surveyed metals. Leaching dynamics varied with both metals and acids. OX had the highest removal rates for Cr, Fe, Mn, and Mg, but had the poorest ability to leach Ca. HCl leached the largest amount of Ca, while CA leached similar amounts of Mg and Mn to OX, and similar amounts of Fe and Cr to HCl. Cr in the leachates was correlated with Ca, Mg, Fe, and Mn. Cr mainly interacted with soil mineral components and showed a punctate distribution in soil particles. The X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), and X-ray photoelectron spectroscopy (XPS) analyses showed soil mineralogical and morphological properties were differently altered after leaching by different acids. Complexation of Cr(III), competitive desorption, and reduction of Cr(VI) make significant contribution to Cr leaching by organic acids. In conclusion, OX can be applied in leaching remediation of Cr-contaminated soil, but the concomitant removal of other non-targeted metals should be taken into account because of the loss of soil minerals and fertility. |
| WOS关键词 | HEAVY-METALS ; HEXAVALENT CHROMIUM ; ORGANIC-ACIDS ; REMEDIATION ; EDTA ; EXTRACTION ; CADMIUM ; COPPER ; OXIDATION ; SURFACE |
| WOS研究方向 | Environmental Sciences ; Public, Environmental & Occupational Health |
| 语种 | 英语 |
| WOS记录号 | WOS:000482128400140 |
| 资助机构 | National Natural Science Foundation of Shandong Province [ZR2018MD006] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41471395] ; Key Research and Development Program of Shandong Province [2019GSF109008] ; Doctoral Foundation of QUST [0100229003] ; Education Department of Guizhou Province Key Laboratory of Soil Resources and Environment in Qianbei of Guizhou Province [Qian Jiao He KY Zi[2017]010] |
| 源URL | [http://ir.yic.ac.cn/handle/133337/24890]  |
| 专题 | 烟台海岸带研究所_中科院烟台海岸带研究所知识产出 |
| 作者单位 | 1.Zunyi Normal Univ, Key Lab Soil Resources & Environm Qianbei Guizhou, Zunyi 563002, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; 3.Qingdao Univ Sci & Technol, Coll Environm & Safety Engn, Qingdao 266042, Shandong, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Sun, YH,Guan, F,Yang, WW,et al. Removal of Chromium from a Contaminated Soil Using Oxalic Acid, Citric Acid, and Hydrochloric Acid: Dynamics, Mechanisms, and Concomitant Removal of Non-Targeted Metals[J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,2019,16(15):2771. |
| APA | Sun, YH,Guan, F,Yang, WW,&Wang, FY.(2019).Removal of Chromium from a Contaminated Soil Using Oxalic Acid, Citric Acid, and Hydrochloric Acid: Dynamics, Mechanisms, and Concomitant Removal of Non-Targeted Metals.INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,16(15),2771. |
| MLA | Sun, YH,et al."Removal of Chromium from a Contaminated Soil Using Oxalic Acid, Citric Acid, and Hydrochloric Acid: Dynamics, Mechanisms, and Concomitant Removal of Non-Targeted Metals".INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 16.15(2019):2771. |
入库方式： OAI收割
来源：烟台海岸带研究所
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