Análise de econometria de dois sistemas naturais de tratamento de água residuária na suinocultura

• Autor(a) principal: Jasper, Samir Paulo [UNESP]
• Data de Publicação: 2008
• Outros Autores: Esperancini, Maura Seiko Tsutsui [UNESP], Biaggioni, Marco Antonio Martin [UNESP], Oliveira, Eduardo Luiz de [UNESP], Guerra, Saulo Philipe Sebastião [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://200.145.140.50/ojs1/viewarticle.php?id=375&layout=abstract; http://hdl.handle.net/11449/70648
• topic: Constructed wetland; Econometric analysis; Stabilization pond; constructed wetland; econometrics; economy of scale; livestock farming; waste treatment; Animalia; Suidae

The 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.