湖南省石门县地处湖南西北山区,矿产资源丰富,原煤(包括烟煤、无烟煤)工业储量6000多万 t,煤炭开采业十分活跃。至1989年底,全县共有登记发证的煤矿106家,丘陵地有煤矿61家。年产量82万 t;但井下废水年排放量达1965.7万 t,煤矸石排放量15.1万 t,使环境受到严重影响。 Shimen County, Hunan Province is located in the mountains of northwestern Hunan, rich in mineral resources, raw coal (including bituminous coal, anthracite) industrial reserves of more than 6000 million t, the coal mining industry is very active. By the end of 1989, there were 106 coal mines registered and issued in the county and 61 coal mines in the hilly land. The annual output is 820,000 t; however, the annual discharge of downhole wastewater reaches 19,657,000 tons and the discharge of gangue is 151,000 tons, which seriously affects the environment.