Resumo

SILVA ARROYAVE, Sandra Milena. Water quality evaluation of Porce II future dam due to the influence of Porce II dam unloading: Water Quality Simulation Model of Future Porce II Dam. Rev. ing. univ. Medellin [online]. 2008, vol.7, n.13, pp.21-37. ISSN 1692-3324.

This project considers evaluating water quality of Future Porce III Dam due to the influence of Porce II dam discharge, using a mathematical simulation model. The methodology consisted in gathering basic information, selecting the model, making its assembly, designing the scenarios to be simulated, analyzing the results, and formulating recommendations and conclusions. CE-QUALW2. was the selected model for the simulation. Simulated scenarios were: Scenario 0, or control scenario; scenario 1: without considering the contribution of Porce II discharge; scenario 2: effect of the nutrient concentrations - contributed by the Porce II discharge - in Porce III the water quality. The principal results were: possibly future Porce III dam will present eutrophy with a probability over 50 %; with a 20% decrease of the initial PO4 concentration which enters the dam from Porce II discharge, Porce III gets a mesotrophy condition. It was found that, in general, the dam will not present thermal stratification or will be weakly stratified in the surface. Water quality of this dam is determined by the quality of Porce II dam discharge.

Palavras-chave : Water quality; dams; stratification; eutrophication; system; model; simulation.

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