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| Author(s): |
Ana Paula Zubiaurre Brites
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Escola Politécnica (EP/BC) |
| Defense date: | 2010-11-09 |
| Examining board members: |
Monica Ferreira do Amaral Porto;
Pedro Além Sobrinho;
Cleverson Vitório Andreoli;
Arisvaldo Vieira Mello Júnior;
Francisco de Assis de Souza Filho
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| Advisor: | Monica Ferreira do Amaral Porto |
| Abstract | |
This study developed a mathematical model to support the proposal of the water bodies classification and the setting of goals for its implementation. New analysis criteria, directly related to the water management process, were included in the model. These criteria are the occurrence probability of certain water quality standards and the associated cost to attain these water quality standards, according to the established water uses. The use of the occurrence probability of water quality standards produces benefits for the water resources management process because it support the pollution control instruments through the verification of the frequency of water quality standards violations, as well as the violation risk level, according to the increase of pollution load discharged into a water body. The occurrence probability of water quality standards integrates the environmental management process with the water resources management process, which provides guidelines for planning, inspection, monitoring and penalty formulation. In view of the implementation of water bodies classification, this study developed several cost functions for the measures of water pollution control, as point and non-point load. It allows the definition of different strategies in order to attain the intended water quality standard. The model combined, in the analysis, the water quantity and quality values, the priority uses, the water quality simulation and the definition of pollution load treatment alternatives. This combination allows the evaluation of several load removal scenarios and different strategies for progressive goals to reach water quality standards. These set of criteria had never been jointly analyzed in a computational model. In order to demonstrate the usefulness of the model, the proposed methodology was applied at Alto Iguaçu watershed, located at the Metropolitan Region of Curitiba, PR. The results of this case study indicated the importance of combining the related criteria in the water resources planning and management system, mainly because the adopted measures may often not attain satisfactory results in terms of the intended water quality standard. The contribution of the proposed model is the definition and automation of a routine calculation that reflect the established criteria for the analysis of progressive goals for water bodies classification. The incorporation of such criteria into a single computational model results in more efficiency for the water quality management system and support the implementation of the water resources planning and management system in Brazil. (AU) | |