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EVAPONTRANSPIRATION AS A METHOD OF WASTEWATER DISPOSAL
Abstract
The paper describes the disposal of wastewater by evapotranspiration (ET). In cases where buildings can-t be connected to the sewerage or to domestic treatment plant, a cesspool must be built. Economic burden of transporting and requirements of wastewater recycling have lead to invention of a system, that ensures the quality of wastewater needed for recycling, while maximizing ET through evapotranspiration bed (ET-bed). For actual evapotranspiration (AET) analysis, a laboratory model of ET-bed with water tank was constructed. The water tank is fit with water and atmosphere pressure sensors, and a water pump. Water is transported to the surface of ET-bed, while beds drainage is connected to the water tank. The output data on the level drop in the tank, combined with a nearby meteorological station, are allowing the AET to be analysed. When measuring the AET, values higher then 7 mm/m2/day were measured. In the summer period, totals of around 5 mm/m2/day were regularly achieved. Regression of AET with potential evapotranspiration (PET) yielded R2 = 0.83 for the Oudin method, R2 = 0.75 for the Thornthwaite method, or R2 = 0.76 for the Hargreaves - Allen method. The disposal of wastewater by ET with recycling represents an economically less demanding solution compared to cesspools. The research itself is set to establish a method of designing the system, with regards of functionality in the long term with the simplest possible operation.
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References6
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BEDNAR, Martin and MARTON, Daniel. Porovnani metod vypoctu potencialni evapotranspirace. In: Juniorstav 2022: 24. Odborna konference doktorskeho studia. Brno: Vysoke uceni technicke v Brne, Fakulta stavebni, 2022, p. 393 - 398. ISBN 978-80-86433-76-9. DOI: 10.13164/juniorstav.2022.393
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Number of times cited according to Crossref: 1
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