Bioreactor landfill is an emerging landfilling method, which represents the newest developing aspect of Municipal Solid Wastes (MSW) treatment. On basis of analyzing the merits and defects of present bioreactor landfilling methods, the paper improves these methods and combines organically aeration and leachate recirculation into a new reactor (called reactor A), which is contrasted with bare aerobic landfill (called reactor B). During the course of experiment, NH3, CH4, CO2, pH, temperature and electric conductivity in the two bioreactors were controlled and detected, meanwhile, COD, Fe3+, NH4(+) in the leachate were detected and analyzed. The paper researches on the wastes degradation and the COD, Fe3+ and NH4(+) removal of the two bioreactors, probes into the mechanics of wastes and leachate degradation. Finally the paper draws a conclusion that the effect of degrading wastes and leachate of bioreactor A is better than that of bioreactor B.
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