title: Improving low-temperature performance of surface flow constructed wetlands using Potamogeton crispus L. plant.
abstract: In this study, enhanced organics and nitrogen removal efficiency in SFCWs by different submerged plants for polluted river water treatment under cold temperature was evaluated. High average removal efficiencies of COD (92.45%), NH4(+)-N (93.70%) and TN (55.62%) were achieved in experimental SFCWs with Potamogeton crispus compared with SFCWs with other plants. SFCWs with underground Phragmites australis root also presented better performance than the unplanted systems, indicating its positive role of contamination removal in winter. The results of this study indicated SFCWs with hardy submerged plant P. crispus could be a more effective and sustainable strategy for removing organics and nitrogen in shallow nutrient enriched river water ecosystems under cold climate.
authors.affiliation: National Engineering Laboratory of Coal-Fired Pollutants Emission Reduction, Shandong University, Jinan 250061, PR China.
authors.forename: Jinlin
authors.initials: J
authors.lastname: Fan
authors.affiliation: Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science & Engineering, Shandong University, Jinan 250100, PR China. Electronic address: zhangjian00@sdu.edu.cn.
authors.forename: Jian
authors.initials: J
authors.lastname: Zhang
authors.affiliation: School of Civil and Environmental Engineering, University of Technology Sydney, Broadway, NSW 2007, Australia.
authors.forename: Huu Hao
authors.initials: HH
authors.lastname: Ngo
authors.affiliation: School of Civil and Environmental Engineering, University of Technology Sydney, Broadway, NSW 2007, Australia.
authors.forename: Wenshan
authors.initials: W
authors.lastname: Guo
authors.affiliation: Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science & Engineering, Shandong University, Jinan 250100, PR China.
authors.forename: Xiaole
authors.initials: X
authors.lastname: Yin
mesh_terms: D001673:Biodegradation, Environmental; D003080:Cold Temperature; D009584:Nitrogen / Q000737:chemistry; D031821:Potamogetonaceae; D045483:Rivers / Q000737:chemistry; D012621:Seasons; D014876:Water Pollution; D053833:Wetlands
chemical_list: D009584:Nitrogen
keywords: Cold climate; Organics and nitrogen removal; Polluted river water; Surface flow constructed wetlands