his project is located in Pushu Village, Yixing City, Jiangsu Province. The treatment object is landfill leachate produced in the power plant garbage pit. The treatment scale is 150m3/d. It adopts the "pretreatment + anaerobic + SBR + ultrafiltration + reverse osmosis" treatment process. The tail water is used for road washing and greening in the factory area. The biogas produced by the anaerobic process is used to generate electricity. Designed inlet water quality COD: 60000~80000mg/L, BOD: 30000~40000mg/L, SS: 6000mg/L, ammonia nitrogen: 2000mg/L; treated tailwater water quality COD: <100mg/L, BOD: <30mg/L , SS: <10mg/L, ammonia nitrogen: <25mg/L.