Application of compound constructed wetland for treating agricultural non-point source pollution

Abstract:

Compound constructed wetland was applied in treating agricultural irrigation polluted water studied the removal effect on nutrients and heavy metals influenced by it.The results indicated that in the case of low pollution load,the removal rate on total nitrogen(TN),ammonia nitrogen(NH3-N),nitrate nitrogen(NO3-N) as well as nitrite nitrogen(NO2-N) in wetland system were 44.11%,18.90%,52.86% and 73.32% respectively.The removal rate on total phosphorus(TP),organic compounds(CODMn) and chlorophyll a(Chla) were ...