The Experimental Study on SBR Treating Landfill Leachate

SBR process of A/O/A/O many-point-water-inflow mode was investigated to treat landfill leachate. When the HRT of four stages were respectively A(2.0h)/O(10.0h)/A(2.0h)/O(6.0h), the influent of two anoxic stages were added in the proportion of 2:1, excretion ratio was 1/3, pH of influent was 7.5~8.0, the results showed that the removal rate of COD
_Cr
, NH
₃
-N and TN were 71.7%, 92.4% and 69.8% respectively. The quality of yielding water was good.