Estudo da qualidade da água do Açude Gavião, mediante o modelo difuso de OD para diferentes temperatudas

Abstract

Concern about the quality of water resources has led to the search for tools that may contribute to the planning, distribution and use of these resources. Mathematical modeling generally describes a situation very close to reality, but requires a large amount of data for the model to be calibrated efficiently. Thus, the Fuzzy Theory is being widely used since it does not require much data to provide satisfactory results. In this study, a water quality model was applied in the Gavião Dam, which supplies Fortaleza, using the diffuse number theory to analyze the DO, considering different temperatures. To obtain the results, a computational program was developed that allowed the simulations to be performed. From the results, it was observed that in periods of Gavião Water Quality, is within the standards established in legislation. As for the temperature parameter, it was verified that the OD is significantly sensitive, especially in equatorial regions, as in the case of the analyzed reservoir, where temperatures are higher. The application of fuzzy modeling to analyze water quality was efficient, which makes it possible to analyze the dynamic behavior of the pertinence functions, thus allowing the calculation of uncertainties.