Experimental study on the water sensitivity of the powder-silver sand

	Experimental study on the water sensitivity of the powder-silver sand
	Han, Zhi-Yong 1; Zheng, Xi-Lai 1; Chen, Ji-Hong 2; Yang, Tao 2
	2008-09-01
发表期刊	Shuikexue Jinzhan/Advances in Water Science
ISSN	10016791
卷号	19 期号:5 页码:630-634
摘要	With the laboratory experiments of the saltwater and the freshwater replacing each other in the level sand-column, and taking the kaolin, illite, smectite, bivalent mercury ion (Hg2+) and the phenol (C6H5OH) as the examples, this article studies the water sensitivity characters of the powder-silver sand. The results show that the influence of the content of the kaolin and illite on the water sensitivity of the powder-silver sand is very slight, which results in the descense of only one grade even the content reaching 10% (weight ratio); but for the smectite, it causes the hydraulic conductivity descending sharply by above 2 grades when its content reaches 3% (weight ratio), and without water flowing through the sand columns at 4% (weight ratio). With the effect of the shearing force from high speed fluid, the removing rate of Hg2+ ion and phenol (C6H5OH) is 31.68% and 55.71% respectively. And the remnants can be hold out of the powder-silver sand columns with the particle's release and migration in water sensitivity process. The reason for the obvious difference between removing rates of two kinds of pollutants is that there are many negative charges on the particles surface which absorb the bivalent mercury ion (Hg2+) which makes its resorting rate is higher than the phenol (C6H5OH). So, we can make good use of the water sensitivity character of the powder-silver sand to build the impenetrable purdah and remove pollutions of the heavy metals and organic pollutants in the sand aquifer.
关键词	Aquifers Groundwater pollution Heavy metals Hydraulic conductivity Ions Kaolin Mercury (metal) Mercury compounds Organic pollutants Phenols Powder metals Sand Silver Experimental study Laboratory experiments Negative charge Particle release Removing rates Shearing force Water sensitivity Weight ratios
收录类别	EI
语种	中文
出版者	China Water Power Press
EI入藏号	20084711720710
EI主题词	Chemicals removal (water treatment)
EI分类号	444.2 Groundwater - 482.2 Minerals - 483.1 Soils and Soil Mechanics - 531 Metallurgy and Metallography - 547.1 Precious Metals - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 632.1 Hydraulics - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.1 Organic Compounds
来源库	Compendex
分类代码	444.2 Groundwater - 482.2 Minerals - 483.1 Soils and Soil Mechanics - 531 Metallurgy and Metallography - 547.1 Precious Metals - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 632.1 Hydraulics - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.1 Organic Compounds
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/111912
专题	兰州理工大学
作者单位	1.Institute of Environment Science and Engineering, Ocean University of China, Qingdao 266003, China; 2.College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China
推荐引用方式 GB/T 7714	Han, Zhi-Yong,Zheng, Xi-Lai,Chen, Ji-Hong,et al. Experimental study on the water sensitivity of the powder-silver sand[J]. Shuikexue Jinzhan/Advances in Water Science,2008,19(5):630-634.
APA	Han, Zhi-Yong,Zheng, Xi-Lai,Chen, Ji-Hong,&Yang, Tao.(2008).Experimental study on the water sensitivity of the powder-silver sand.Shuikexue Jinzhan/Advances in Water Science,19(5),630-634.
MLA	Han, Zhi-Yong,et al."Experimental study on the water sensitivity of the powder-silver sand".Shuikexue Jinzhan/Advances in Water Science 19.5(2008):630-634.