Abstract
The growing demand for water in China’s coal-producing regions requires enhanced coal mine drainage (CMD) utilization. Mine water quality was analyzed for 269 mines distributed in 11 of China’s large coal-producing regions. We found that China’s CMD can be broadly characterized as: slightly contaminated, acidic, high salinity, high sulfate, high fluoride, and containing elevated iron and manganese. When CMD had properties of more than one category, its most distinctive characteristic was used for classification. When this was done, the chemical characteristics tended to correlate with the hydrogeological conditions of the region. Appropriate treatment technologies and pollution prevention measures based on these chemical characteristics could enhance the likelihood of mine water being used to relieve China’s water shortage crisis and promote environmental protection for China’s coal-producing regions.
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