Demanda por água bruta para diluição de esgoto doméstico na bacia hidrográfica do Rio Salgado, no Ceará: uma aplicação da demanda tudo ou nada

Abstract

The aim of this study is to determine the ordinary demand function and the price-elasticity for water use for dilution of domestic sewage in the Salgado river hydrographic basin, in Ceará. The quality of the river´s water is compromised and it will be the receiver of the transposition waters from São Francisco river. It applies the all or nothing demand methodology to determine the ordinary demand function, from the technical studies to the conception of alternatives for the sewer systems in the municipalities located in the São Francisco area of influence with Ceara. The results show that demand price-elasticity is inelastic, reinforcing the results of other studies on water charging.