Ground Water Contamination of the Coal Gangue Leachate of Sandy Base Field in Erdos - On the Case of the Coal Waste Field of Daliu Tower Mine Area

Abstract:

Based on the hydro-geological survey, sampling analysis and combined with ground water flow systems theory, the work studied coal gangue leachate of a typical sandy base coal waste field in Erdos on ground water environmental impact. The results showed that pile of coal waste change the original characteristics of ground water flow systems, coal waste field from ground water discharge areas change into the runoff area, the bottom of Gangue heap immersion in ground water long term, the toxic and hazardous substances released and spread to the downstream by ground water runoff. Chromium, arsenic, fluoride, sulfateradical, copper, zinc, nickel, manganese and other pollution factors in the downstream ground water of gangue field and surface outlet is much higher than background value, where concentration of arsenic and NO_3–N is 1.013mg / l and 31.2 mg / l, respectively higher than the background value which is 148 and 3 times.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 2172-2176
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.2172
• Online since: September 2013
• Authors: Jia Yin Lu*, Shao Gang Dong, Wei Zhang, Ding Ding Wu
• Keywords: Coal Gangue Leachate, Daliu Tower Mine Area, Ground Water Contamination, Ground Water Flow System

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