Leaching of Arsenic, Chromium, and Copper from Coal Fly Ash Treated Soil

doi:10.1080/00032719.2015.1137300

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	Leaching of Arsenic, Chromium, and Copper from Coal Fly Ash Treated Soil
	Liu, Guijian 1; Zhang, Qing 2,3; Peng, Shuchuan 3; Wang, Jiao 1; Li, Hui 1
刊名	ANALYTICAL LETTERS
	2016
卷号	49 期号:13 页码:2146-2156
关键词	Amended Soil Coal Fly Ash Elemental Mobility Inductively Coupled Plasma Mass Spectroscopy Leaching Time
DOI	10.1080/00032719.2015.1137300
文献子类	Article
英文摘要	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.
WOS关键词	COMBUSTION ; AMELIORATION ; SPECIATION ; AMENDMENT ; ELEMENTS ; CHINA
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:000380773000016
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5669]
专题	地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
作者单位	1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China 3.Hefei Univ Technol, Sch Resource & Environm Engn, Hefei 230009, Peoples R China
推荐引用方式 GB/T 7714	Liu, Guijian,Zhang, Qing,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	Liu, Guijian,Zhang, Qing,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	Liu, Guijian,et al."Leaching of Arsenic, Chromium, and Copper from Coal Fly Ash Treated Soil".ANALYTICAL LETTERS 49.13(2016):2146-2156.