67 The Advantages and Mechanism of Semi-Aerobic Landfill

This paper reviews the differences in the two ways of anaerobic landfill and semi-aerobic landfill. The leachate came from semi-aerobic landfill being recycled leachate has such characteristics: A small quantity of acid and COD, high degradation rate of NH3-N. The acid accumulation phenomenon is not occurred when anaerobic landfill leachate was recycled to the landfill at the initial stage and also not occurred high NH3-N concentration in the middle and end stage. The improving way of landfill accelerated the degradation of COD and BOD, and speeded up the course of stabilization of the waste by the way of mix half of new waste with half of old waste.