Numerical simulation of phosphorus removal in horizontal subsurface flow constructed wetlands

作者：Liolios Konstantinos A^*; Moutsopoulos Konstantinos N; Tsihrintzis Vassilios A

来源：Desalination and Water Treatment, 2015, 56(5): 1282-1290.

DOI：10.1080/19443994.2014.983550

• Wastewater treatment
• Constructed wetlands
• Total phosphorus removal
• Adsorption
• Freundlich isotherm
• Numerical modeling
• MODFLOW

The removal of total phosphorus (TP) in horizontal subsurface flow constructed wetlands (HSF CW) is numerically investigated using the Freundlich linear isotherm for adsorption. For the numerical simulation, the Visual MODFLOW code family, based on the finite difference method, was used. This model is applied in the simulation of five pilot-scale HSF CWs. Influent-effluent TP concentration experimental data from these facilities were used to first calibrate this model and derive appropriate values of the distribution coefficient K-d and the first-order removal coefficient . Then, the model was verified using the values of and K-d from calibration and independent experimental data from these facilities. The calibrated model was applied to comparatively simulate differences in removal efficiency under various design and operational parameters.

• 出版日期2015-10-30