Storing coal, coal gangue, coal cinder, coal ash, sandstone, lime soil or other materials in densely inhabited areas without taking any measures for fire and dust prevention.
采取防燃、尘措施，在人口集中地区存放煤炭、矸石、煤渣、灰、石、灰土等物料的。
2
The invention takes full advantages of the color property of the pyrite cinder and the gelling property of the fly ash, water and sediment and electric lime, which changes waste into valuables.
本发明充分利用了硫铁矿烧渣的颜色特性和粉煤灰、水沙、电石灰的胶凝特性，变废为 宝。
3
The mixtures of power lime and cinder were used as PRB materials to study the feasibility of in-situ remediation of acid seepage water from uranium mill-tailings.