The residence time distribution in W-SFCW system experiments was studied using the reactor theory,from chemical engineering.

Pretreatment EFFects of Yellow River raw water by subsurface constructed wetland in low temperature;

Study on the Treatment of Polluted River by Subsurface Constructed Wetland;

Water quality,flux and temperature of polluted river in northern China fluctuate a lot in a year around,which is disadvantageous for sustainable operation of subsurface constructed wetland treating polluted river water.

, so a small-scale subsurface-flow constructed wetland (SFCW) in the investigation was conducted to study the purification effect on swine wastewater.

The subsurface flow constructed wetland was covered with the harvested wetland vegetation for the sake of heat preservation.

In consideration of stormrunoff pollution problems existing in many wa tersheds in our country,we utilized subsurface flow constructed wetlands to research th e problems.

CFD study on effect of catchment area on hydraulic performance of subsurface flow constructed wetland;

Study on the Strengthening Nitrification in Subsurface Flow Constructed Wetland;

By analyzing the date of experiments in different season and different work situation, the removal efficiency of the suspended material 、 COD and N and the parameters was researched in subsurface flow constructed wetland .

In order to guarantee that the low concentration domestic sewage of barracks area can be treated effectively in winter,a combined sewage treatment system using subsurface-flow constructed wetland as main process was designed and constructed.

The subsurface-flow constructed wetland with shale/slag was used for advanced treatment of secondary effluent from urban wastewater treatment plants.

Based on the characteristics of rural domestic sewage,a combined system of enhanced septic tanks and subsurface-flow constructed wetland was developed.