Estimation of nitrogen dynamics in a vertical-flow constructed wetland
作者： Y. Ouyang , S.M. Luo , L.H. Cui
DOI: 10.1016/J.ECOLENG.2010.11.008
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摘要: Abstract The vertical-flow constructed wetland (VFCW) is a promising engineering technique for removal of excess nutrients and certain pollutants from wastewater stormwater. aim this study was to develop model using the STELLA software estimating nitrogen (N) dynamics in an artificial VFCW (i.e., substrate column with six zones) associated growing Cyperus alternifolius species under wetting (wastewater) -to-drying ratio 1:3. calibrated by our experimental data reasonable agreement prior its applications. Simulations showed that rates NH 4 + -N NO 3 − leaching decreased increasing zone number (or depth), although such decrease much more profound -N. Our simulations further revealed rate time within each zone, whereas increased zone. Additionally, both through zones followed water flow pattern: breakthrough during period cessation drying period. In general, cumulative amounts total (TN) were following order: leaching > denitrification > uptake > settlement. About 54% TN flowed out system, 18% lost due denitrification, 6% taken up roots single plant (one hill), rest 22% removed other mechanisms, as volatilization, adsorption, deposition. This suggested improve overall performance N removal, prevention loss one major issues.
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sci-hub.se 参考文章(16)
Muhsin Naz, Sinan Uyanik, M. Irfan Yesilnacar, Erkan Sahinkaya, Side-by-side comparison of horizontal subsurface flow and free water surface flow constructed wetlands and artificial neural network (ANN) modelling approach Ecological Engineering. ,vol. 35, pp. 1255- 1263 ,(2009) , 10.1016/J.ECOLENG.2009.05.010
Transport phenomena in intermittent filters Water Science and Technology. ,vol. 35, pp. 13- 20 ,(1997) , 10.1016/S0273-1223(97)00090-5
Gabriel Maltais-Landry, Roxane Maranger, Jacques Brisson, Effect of artificial aeration and macrophyte species on nitrogen cycling and gas flux in constructed wetlands Ecological Engineering. ,vol. 35, pp. 221- 229 ,(2009) , 10.1016/J.ECOLENG.2008.03.003
B. Tunçsiper, S.Ç. Ayaz, L. Akça, Modelling and evaluation of nitrogen removal performance in subsurface flow and free water surface constructed wetlands Water Science and Technology. ,vol. 53, pp. 111- 120 ,(2006) , 10.2166/WST.2006.412
Ying Ouyang, Shi Ming Luo, Li Hua Cui, Ying Hu Liu, Zhong Qin, Estimation of water dynamics in a vertical-flow constructed wetland with a growing plant species Journal of Soils and Sediments. ,vol. 10, pp. 1219- 1228 ,(2010) , 10.1007/S11368-010-0240-4
Jian Peng, Xiaoying Fu, Lin Luo, Hongbing Luo, Gu Huang, Xiaoming Wu, Ecological engineering analysis and eco-hydrodynamic simulation of tidal rivers in Shenzhen City of China Ecological Engineering. ,vol. 35, pp. 1129- 1137 ,(2009) , 10.1016/J.ECOLENG.2008.12.015
Günter Langergraber, Jirka Šimůnek, None, Modeling Variably Saturated Water Flow and Multicomponent Reactive Transport in Constructed Wetlands Vadose Zone Journal. ,vol. 4, pp. 924- 938 ,(2005) , 10.2136/VZJ2004.0166
Theresa Maria Wynn, Sarah K Liehr, Development of a constructed subsurface-flow wetland simulation model Ecological Engineering. ,vol. 16, pp. 519- 536 ,(2001) , 10.1016/S0925-8574(00)00115-4
Jan Vymazal, Removal of nutrients in various types of constructed wetlands. Science of The Total Environment. ,vol. 380, pp. 48- 65 ,(2007) , 10.1016/J.SCITOTENV.2006.09.014
Ying Ouyang, Modeling the mechanisms for uptake and translocation of dioxane in a soil-plant ecosystem with STELLA. Journal of Contaminant Hydrology. ,vol. 95, pp. 17- 29 ,(2008) , 10.1016/J.JCONHYD.2007.07.010