1. 废石：岩体:Rock | 废石:waste rock | 围岩:surrounding rock
2. 废岩：terrestrial flora and vegetation 陆地植物区系和植被 | waste rock 废岩 | groundwater abstraction 地下水提取
3. 矸石：vent hole 出气孔 | waste rock 矸石 | water gas shift reation 水汽变换反应
1. Burning coal concentrates the uranium in the waste, and production of phosphoric acid from high uranium content phosphate rock removes the uranium.