Abstract: The concept and properties (physical, chemical and biological) of mineralized refuse and the mechanism of removing organic substances by mineralized refuse bioreactor are described. It is illustrated through engineering cases that mineralized refuse bioreactor has good effect of removing COD, BOD and NH₃-N from landfill leachate. Besides, it has excellent anti-impact load property, low investment and operation cost, mass and sufficient resource, and exploitation and utilization prospect in China. Its application and spreading in landfill leachate treatment will be of ecological significance and will surely bring good environmental and economic benefits.

Key words: Mineralized refuse, Bioreactor, Leachate