[Dynamics model analysis of pollutants removal in aerated vertical-flow wetland].
Based on the dynamic model building of pollutants removal in aerated vertical-flow constructed wetland, data of the wetland under different aeration conditions were analysed. Different aeration conditions' k values were calculated, which represented the pollutants removal kinetic constants. The results demonstrate that the efficiency of pollutants removal is higher with the increasing gas-water ratio. The most favorable designing gas-water ratio of the aerated vertical-flow constructed wetland was chosen as 2 : 1 through analysis of curve fits by regression with kinetic constants values and gas-water ratio values. The corresponding k values of BOD5 and NH4(+) -N are 3.8 d(-1) and 4.1 d(-1) respectively.
State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China. jzhpan@niglas.ac.cn
Ji-Zheng
JZ
Pan
Fan
F
Ke
Wen-Chao
WC
Li
D001673:Biodegradation, Environmental; D007700:Kinetics; D008962:Models, Theoretical; D009584:Nitrogen / Q000737:chemistry / Q000302:isolation & purification; D009930:Organic Chemicals / Q000737:chemistry / Q000302:isolation & purification*; D010100:Oxygen / Q000737:chemistry*; D000644:Quaternary Ammonium Compounds / Q000737:chemistry / Q000302:isolation & purification*; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000302:isolation & purification; D053833:Wetlands
D009930:Organic Chemicals; D000644:Quaternary Ammonium Compounds; D014874:Water Pollutants, Chemical; D009584:Nitrogen; D010100:Oxygen