Data from: Contaminant removal efficiency of floating treatment wetlands

This dataset belongs to the paper titled 'Contaminant removal efficiency of floating treatment wetland' published by Environmental Research Letters. The abstract of the paper is: Floating treatment wetlands are new ecological infrastructures for stormwater treatment. Despite a recent proliferation in their usage, their contaminant removal efficiency e continues to draw research attention. Here, the e from idealized FTWs is numerically computed across a wide range of flow and geometric conditions while accommodating joint contributions of advection, turbulent dispersion, and vegetation removal. The emerging mathematical structure describing e bears resemblance to a simplified plug flow model and supports an empirical shallow-basin models from long-term field measurements. The present model indicates that e remains significantly influenced by a Dämkohler number that quantifies the effects of both vegetation and flow properties. The impacts one of the underflow region and contaminant blockage on the removal mechanisms are also investigated.