This work was conducted to evaluate both hydrological and hydraulic aspects in four constructed wetland systems (SACs), that were cropped with Typha sp. and used in the treatment of the domestic wastewater presettled in septic tank. The system was fed a constant water application ratio (q) of 60, 47, 23 and 35 liter m-2 d-1 in SACs 1, 2, 3 and 4, respectively, besides being monitored. The hydraulic conductivity and evapotranspiration were also measured. Water balances were monthly accomplished during six-months period. The results evidenced the hydraulic conductivity in the supportive medium to be reduced during the operating time of the system, as well as the treatment system showed an average evapotranspiration of 9.3mm d-1, as resulting into a cropping coefficient (Kc) of the Typha sp. ranging from 2.22 to 4.58.
Domestic wastewater; wastewater; evapotranspiration; crop coefficient; hydraulic conductivity; constructed wetland systems
