Estimated seasonal daily evapotranspiration rates for a horizontal subsurface flow constructed wetland

Authors

  • Dávid Somfai Institute of Smart Technology and Engineering, Department of Environmental Engineering, Faculty of Engineering and Information Technology, University of Pécs, Hungary
  • Ernő Dittrich Institute of Smart Technology and Engineering, Department of Environmental Engineering, Faculty of Engineering and Information Technology, University of Pécs, Hungary https://orcid.org/0000-0003-3964-2011
  • Éva Salamon-Albert Department of Plant Biology, Institute of Biology, University of Pécs, Hungary https://orcid.org/0000-0001-9599-6880
  • Anita Dolgos-Kovács Institute of Smart Technology and Engineering, Department of Environmental Engineering, Faculty of Engineering and Information Technology, University of Pécs, Hungary

DOI:

https://doi.org/10.14232/analecta.2020.2.1-12

Keywords:

horizontal subsurface flow constructed wetlands, evapotranspiration, tufted sedge, condensation, water balance

Abstract

We measured the daily evapotranspiration on a horizontal sub-surface flow constructed wetland in Hódmezővásárhely, Hungary. The main focus of our research was the seasonality of evapotranspiration in this CW. We measured the water balance of the CW and searched days when no precipitation, no inlet or outlet impacted on the water balance of the constructed wetland, only the evapotranspiration. had impact on the water balance. The results show that in spring the evapotranspiration rates were between 18-42,6 mm/day, in summer 12,3-42,3 mm/ day and in autumn the values were 13,6-22,7 mm/day. The highest hourly evapotranspiration was 16,3% of the daily evapotranspiration. This value was 415 % of the average, hourly hydraulic load that can significantly affects on the effluent concentration. The results also show the morning and evening condensation which has two main effects. On the other hand, the water balance of the CW is increased, which results the decrease of the concentration of wastewater.

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Published

2020-12-08

How to Cite

Somfai, D., Dittrich, E., Salamon-Albert, Éva, & Dolgos-Kovács, A. (2020). Estimated seasonal daily evapotranspiration rates for a horizontal subsurface flow constructed wetland. Analecta Technica Szegedinensia, 14(2), 1–12. https://doi.org/10.14232/analecta.2020.2.1-12

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