出典:Wikipedia
出典:『Wikipedia』 (2010/08/23 23:00 UTC 版)
Key Lake is the site of the largest uranium mill in the world. It was initially developed as the site of open pit uranium mining at two sites: the Gaertner deposit and the Deilmann deposit. Production of original ore ceased in the late 1990s, and the Key Lake mill is currently processing uranium ore from the McArthur River mine and from stockpiles on site. High-grade ore from McArthur river is blended with local rock before being passed through the mill. The mill has an annual production capacity of 18 million pounds of U3O8. In addition, ammonium sulfate fertilizer is produced as a byproduct from used reagents. Local deposits have been mined out and the pits are being used as mill tailings management facilities.