Open AccessStudy on the Effect of Porous Subsurface Flow Constructed Wetland on Sewage Purification
Author(s) -
Xinyue Zhou,
Yancheng Han,
Yuelei Wang,
Pingping Chu,
Mengyuan Liang
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/446/3/032056
Subject(s) - wetland , constructed wetland , inlet , subsurface flow , environmental science , sewage , environmental engineering , pollutant , front (military) , porosity , flow (mathematics) , hydrology (agriculture) , sewage treatment , groundwater , geotechnical engineering , ecology , geology , mathematics , oceanography , geometry , geomorphology , biology
In this paper, a new porous subsurface flow constructed wetland was developed to remove BOD, TN and TP from sewage. A water inlet is arranged at the front of the wetland 0.25m and 0.45m from the ground. The design has the characteristics of simple structure and uniform water distribution, which makes the wetland easy to construct and improve the removal effect of pollutants. The results showed that the average removal rates of BOD, TN and TP in the wetland system were 85.63%, 80.29% and 89.07%, respectively, when the average temperature was 26°C and the hydraulic retention time was 1.3d. The removal effect is good, which can play a certain ecological and social benefits.