The treatment of leachate from urban landfills and waste incineration power plants has always been a very challenging issue in operation and management. Generally speaking, its pH value is between 4 and 9, COD is within the range of 2000 to 62000mg/L, BOD5 is between 60 and 45000mg/L, and the concentration of heavy metals is basically the same as that in municipal sewage. It is a high concentration organic wastewater with complex components. If it is directly discharged into the environment without treatment, it will cause serious environmental pollution. Adopting MBR technology to treat leachate from garbage. Meet the pollution control standards for domestic waste landfill sites (GB16889); And the investment and operating costs are low.