Landfilling is the most widely used method for the waste treatment. Leachate is commonly generated from
precipitation, surface run-off, and infiltration or intrusion of groundwater percolating through the landfill[1].
Leachate is difficult to be treated to satisfy the discharge standards for its variable composition and high proportion
of refractory materials[2].Many treatment methods have been used to treat the leachate, such as advanced oxidation
techniques, membrane processes, biological processes,coagulation–flocculation methods and so on[3].For the
characteristics of leachate change with advancing years of the landfill, these methods have some shortages such as
decreasing treatment efficiencies and increasing cost[1]. Therefore, some effective and economical treatment
methods need to be developed to solve these problem.