Leaching of Arsenic, Chromium, and Copper from Coal Fly Ash Treated Soil
Zhang, Qing1,2; Liu, Guijian3; Peng, Shuchuan1; Wang, Jiao3; Li, Hui3
2016
发表期刊ANALYTICAL LETTERS
卷号49期号:13页码:2146-2156
文章类型Article
摘要The use of coal fly ash for soil amelioration may provide soil enrichment as well as the disposal of fly ash produced from thermal plants. However, when exposed to rainfall, hazardous elements such as arsenic, chromium, and copper in the coal fly ash may be released into the soil and cause environmental pollution. In the current study, continuous leaching experiments were performed on coal fly ash used as a soil ameliorant to investigate the leaching of arsenic, chromium, and copper. The concentrations of the analytes and other elements in leachates from fly ash were determined by inductively coupled plasma mass spectroscopy and X-ray fluorescence spectrometry, respectively. The results indicated that the concentrations of these leached elements varied depending on the distance from the amended soil. In the downstream soil, the concentrations of arsenic and chromium increased with distance of the amended soil. However, the concentration of copper initially increased and then decreased under the same conditions. The maximum average concentrations of arsenic and chromium were three times and five times higher, respectively, than the corresponding background values in water. Moreover, the concentration of arsenic decreased with leaching time in the order of 14 > 2 > 8 h, while the concentrations of chromium and copper decreased according to 2 > 8 > 14 h. These results provide useful information for the safe utilization of coal fly ash.
关键词Amended Soil Coal Fly Ash Elemental Mobility Inductively Coupled Plasma Mass Spectroscopy Leaching Time
WOS标题词Science & Technology ; Physical Sciences
DOI10.1080/00032719.2015.1137300
关键词[WOS]COMBUSTION ; AMELIORATION ; SPECIATION ; AMENDMENT ; ELEMENTS ; CHINA
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Analytical
WOS记录号WOS:000380773000016
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5669
专题黄土与第四纪地质国家重点实验室(2010~)
作者单位1.Hefei Univ Technol, Sch Resource & Environm Engn, Hefei 230009, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China
3.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei, Peoples R China
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Zhang, Qing,Liu, Guijian,Peng, Shuchuan,et al. Leaching of Arsenic, Chromium, and Copper from Coal Fly Ash Treated Soil[J]. ANALYTICAL LETTERS,2016,49(13):2146-2156.
APA Zhang, Qing,Liu, Guijian,Peng, Shuchuan,Wang, Jiao,&Li, Hui.(2016).Leaching of Arsenic, Chromium, and Copper from Coal Fly Ash Treated Soil.ANALYTICAL LETTERS,49(13),2146-2156.
MLA Zhang, Qing,et al."Leaching of Arsenic, Chromium, and Copper from Coal Fly Ash Treated Soil".ANALYTICAL LETTERS 49.13(2016):2146-2156.
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