Abstract

In China, about 95% of total coal production is from underground coal mines producing 660 million tonnes of coal mining waste (CMW) annually, out of which about 62% are reused and recycled. This chapter reviews comprehensive utilization of coal wastes and current developments in low-cost technologies for recycling of coal industry waste into environmentally friendly and higher energy output coal briquettes for use in the power generation, iron and steel and cement industries. Proper treatment methods of CMW are essential for sustainable development and for improving the economic benefits of natural resources. Considering the energy crisis, development of recycling has become an important solution to CMWs treatment and energy savings. The recycling economy in coal mines should regard the coal mining and coal washing industries as the core of coal mining recycling. The treatment of water using calcinated CMW was effective in reducing toxic effects, which could be associated with the removal through their adsorption on surface of metal oxides.

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