Jasper, Samir Paulo [UNESP]Esperancini, Maura Seiko Tsutsui [UNESP]Biaggioni, Marco Antonio Martin [UNESP]Oliveira, Eduardo Luiz de [UNESP]Guerra, Saulo Philipe Sebastião [UNESP]2014-05-272014-05-272008-12-01Irriga, v. 13, n. 4, p. 540-551, 2008.1413-78951808-3765http://hdl.handle.net/11449/70648The aim of this work was to develop a detailed econometric analysis to compare a constructed wetland system - combined model, and a waste stabilization pond system - facultative pond, as a function of six different sizes of finishing pig farms and two waste management systems - wet and dry. The constructed wetland system using dried waste management showed the best economic results. This finding is due to the low-cost implementation a year both per animal and per kilogram of meat. This system also required the smallest area for waste treatment. The use of stabilization pond with wet waste management system showed a lower implementation cost a year per animal and per kilogram of meat, but it required large areas. The econometric analysis of both systems of wastewater treatment revealed an economy of scale.540-551porConstructed wetlandEconometric analysisStabilization pondconstructed wetlandeconometricseconomy of scalelivestock farmingwaste treatmentAnimaliaSuidaeArtigoAcesso aberto2-s2.0-658492989932-s2.0-65849298993.pdf461223333115225516628574716931605042312629711245