广东大宝山矿区生态环境退化现状及治理途径探讨

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Abstract

This article reports the ecological degradation and off-site environmental impacts of acid drainage in Guangdong Dabaoshan Mine, based on field observation and measurements, and laboratory analysis of the water and soil samples collected from the site. The results show that the open pits are major acid sources for acid mine drainage. At the time of field measurements, the mine water discharging into a tributary of the Wengjiang River had a pH of 3.36 at the Mud Containment Dam (MCD). Concentrations of most heavy metals exceeded the permitted levels of waste water discharge stated in the National (P.R. China) Standards for Integrated Waste Water Discharges (GB8978-1996) even at a point of about 3.5 km downstream of the Mud Containment Dam. From a technical point of view, remediation of this minesite requires a combination of geochemical engineering and bioremediation technologies.

Key words： Minesite acid sulfate soils Metal sulfide Ecological degradation

Received: 25 June 2003

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	LINChu-xia
	LONG Xin-xian
	TONG Xiao-li
	XU Song-jun
	ZHANG Jia-en

Cite this article:

LINChu-xia,LONG Xin-xian,TONG Xiao-li, et al. Guangdong Dabaoshan Mine: ecological degradation, acid drainage and possible measures for their Remediation[J]. , 2003, 22(3): 205-208.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2003/V22/I3/205

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