Purification Efficiency and Saving Energy Characteristics of A Tower Constructed Wetland
A tower constructed wetland was developed and used for purification of sewage,and researched the purification efficiency,saving engery efficiency and evolution of sewage.The results showed that the averaged removal efficiency of the COD,NH4+-N,TN and TP reached respectively(86.8±8.4)%,(98.7±2.8)%,(67.9±18.9)%and(89.7±10.5)%,the averaged COD,NH4+-N and TN removal efficiencies were changed when the variety of seasons,and the annual TP removal efficiency was stable.The tower constructed wetland can save electric charge 1.954 yuan/t when the treatment scale was 3.2 t/d.The tower constructed wetland has good environmental and economical benefits and can be utilized for purification of dispersed sewage.
Biomimetic reactorTower constructed wetlandSewageEnergy saving and emission reduction