Recycling utilization patterns of coal mining waste in ...
Oct 01, 2010· Coal sludge or slime is the tailed coal after mechanical dewatering of coal in the coal washing process. It can flow with the water, but air-dried quickly to ash and fly with the wind. As discussed above, if the coal sludge cant treat properly, it would pollution and waste the resources, thus it has been a hot "potato" in the waste ...