Study on the Migration Law of Heavy Metal Elements of Open Pit Waste Dump in Surrounding Soil

Abstract:

Taking Shaanxi Tongchuan Cui Home Gully coal gangue as an example. The paper study on the migration law of heavy metal elements of open pit waste dump in surrounding soil by measuring and analyzing the contents of heavy metal elements which are Cu, Cr, Zn, Pb, Cd. The results show that: firstly, the elements contents of Cu, Cr, Zn, Pb are under the national secondary soil quality standard, but the content of Cd is above the national secondary soil quality standard, the single index of Cd is 3.03,this mean that the pollution is serious, so the situation should be pay more attention; secondly the contents of five heavy metals elements mainly accumulated in the range of 0~40cm soil profile in vertical direction, with the soil depth increase ,the contents of five heavy metals decrease, and when the soil depth is under 60m, the pollution reach stable state; thirdly, with the horizontal distance to coal gangue increase, the content of heavy metals which are Cu, Cr, Pb, Cd (soil depth is 5~20cm) decrease, but with the horizontal distance to coal gangue increase ,the content of Zn is much higher than other elements.

• Periodical: Applied Mechanics and Materials (Volumes 361-363)
• Pages: 942-948
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.361-363.942
• Online since: August 2013
• Authors: Xiao Guang Zhao, Yang Yang, Nian Zhang, Yu Li
• Keywords: Coal Gangue, Heavy Metal, Soil

References

[1] Anfeng Zhu, Minggong Chen: submitted to Coal processing and comprehensive utilization, 2003(2): 40. (In Chinese).

[2] Wen Wang, Xiangyou Gui: submitted to Journal of Industrial safety and environmental protection, 2002, 28(1): 46～48. (In Chinese).

[3] Shuqing Liu: submitted to Journal of Soil 1996, 33(2): 175～182. (In Chinese).

[4] Danli Xi, YuSheng Sun: Environmental Monitoring (China Higher Education Press, Beijing 2004 ) (In Chinese).

[5] The values of China soil background (China Environmental Science Press, 1990. ) (In Chinese).

[6] Jian Yang, Jiajun Chen, Xinyi Wang: submitted to Journal of agricultural environmental science, 2008, 27(3): 873～878. (In Chinese).