Assessment and Research on Sewage Treatment Combined Process for Dispersible Town in the Three Gorges Reservoir Region
Baiyang Town Sewage Treatment Plant for diffused sewage in the Three Gorges area was chosen as research object,with the combined process as anaerobic-aerobic-constructed wetland.After long-time monitoring for different processes,treatment effects were assessed for pollutants removing.The results showed that BOD5,COD and NH3-N treatment efficiency of the combined process were all more than 90％,with SS for 75％ and TN for 85％ after stable operation.Different process monitoring indicated the pollutants were mainly removed in anaerobic-aerobic process.The constructed wetland was fit for tail water which has obvious seasonal differences with low efficiency in autumn-winter and high in spring-summer.So in order to keep stable wastewater treatment efficiency,it is suggested the construction of anaerobic-aerobic facilities should be preferably intensified rather than relying solely on the wetland.
Three Gorges Reservoirsdiffused sewageanaerobic-aerobic-constructed wetland
NETL
NSTL
万方数据
维普
