Considering pollution control standards of municipal solid waste landfill(GB16889—2008),the stabilized treatment of heavy metal in fly ash was studied,which aimed to finalizing the optimum addition ratio of chelating agent to meeting the requirements in GB16889—2008. The stabilized heavy metals efficiency was compared between cement solidification and two organic chelating agents in different proportions. The results show that the lead,nickel leaching concentrations exceed the standards in the fly ash leach...