demand (COD) as well as the removal of NH 4+-N and NO 3--N by the Aerobic–anaerobic
Baffled Constructed Wetland Reactor (ABCW). The ABCW reactor was planted with common
reed (Phragmite australis), where the hydraulic retention times was set to 1 d and was fed
with synthetic wastewater. Supplementary aeration was supplied in designated
compartments of the ABCW reactor to control the aerobic and anaerobic zones. The COD …