Sun, YH; Guan, F; Yang, WW; Wang, FY
发表期刊INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
ISSN1661-7827
2019-08-01
卷号16期号:15页码:2771
关键词chemical leachingsoil washingcolumn experimentchromiumsoil remediation
研究领域Environmental Sciences; Public, Environmental & Occupational Health
DOI10.3390/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
通讯作者Wang, Fayuan(wangfayuan@qust.edu.cn)
作者部门中科院烟台海岸带研究所知识产出
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.
文章类型Article
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]
收录类别SCI
语种英语
关键词[WOS]HEAVY-METALS; HEXAVALENT CHROMIUM; ORGANIC-ACIDS; REMEDIATION; EDTA; EXTRACTION; CADMIUM; COPPER; OXIDATION; SURFACE
研究领域[WOS]Environmental Sciences; Public, Environmental & Occupational Health
WOS记录号WOS:000482128400140
引用统计被引频次：13[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24890
专题中科院烟台海岸带研究所知识产出
作者单位1.Qingdao Univ Sci & Technol, Coll Environm & Safety Engn, Qingdao 266042, Shandong, Peoples R China;
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China;
3.Zunyi Normal Univ, Key Lab Soil Resources & Environm Qianbei Guizhou, Zunyi 563002, Peoples R China
推荐引用方式
GB/T 7714Sun, 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.
APASun, 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.
MLASun, 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.
PDF全文下载地址:
点我下载PDF
