A novel multi-stage tidal flow constructed wetlands(MSTF-CWs) was employed for treatment of gold mine tailing leachate. The MSTF-CWs was operated using tidal flow strategy(8 h for each cycle) and under the average hydraulic load of 5.4 L/(m~2·d) and using gravel and zeolite act as medium.The results showed that, whenthe influent COD and mass concentration of NH4~+-N, SCN-CNTwere 139.9 mg/L and 101.3, 45.47, 0.83 mg/L, respectively,the average effluent were 60.19 mg/L and 21.52, 8.74, 0.046 mg/L. The average...