Programa de Pós-graduação em Engenharia Ambiental e Sanitária

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Navegando Programa de Pós-graduação em Engenharia Ambiental e Sanitária por Por Orientador "Araújo, José Vicente Granato de"

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    Mapeamento da vulnerabilidade de águas subterrâneas nos municípios do eixo Goiânia - Anápolis, Goiás
    (Universidade Federal de Goiás, 2015-12-10) Crispim, Diogo Coelho; Araújo, José Vicente Granato de; http://lattes.cnpq.br/2401010575058480; Araújo, José Vicente Granato de; Ferreira, Nilson Clementino; Pasqualetto, Antônio
    Human activities and the growing urban sprawl have caused a degradation in both quantity and quality of surface water and as a consequence the increase in the search for alternative sources of water resources. This research sought to contribute to the preservation of aquifers, by mapping the vulnerability to contamination and evaluation of the ionic quality of groundwater. The use of vulnerability maps is of real importance when planning to promote groundwater conservation activities, because, knowing the areas susceptible to contamination, can align the activities to be installed in these regions. The objective of this work was to develop vulnerability maps of groundwater contamination for municipalities located in the Goiania-Anápolis Axis and to evaluate the ionic quality of the groundwater in the Goiânia county. The vulnerability assessment used the GOD method that considers the following parameters: type of the aquifer, depth of water level and characteristics of rock strata above the layer of interest. The GOD method comprises a simple methodology that generates practical results of real usefulness and importance. The study comprises the following municipalities: Anápolis, Campo Limpo de Goiás, Goianápolis, Goiânia, Terezópolis de Goiás, Nerópolis, Ouro Verde and Senador Canedo, which belong to a region of great interest because they have important economic activities and high population density. The vulnerability map obtained show highly vulnerable regions corresponding to 8% of the total area; medium vulnerability, equal to 24%; low vulnerability with 57% being the most prevalent, and insignificant vulnerable regions, totaling 11%. These results are similar to those obtained by Nogueira (2010) for a specific part of the same region, making the maps an important planning tool to assist managers in the definition of risk areas for occupation and in the identification of regions with less possibility of contamination.
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    Planejamento urbano da bacia do córrego Samambaia (Goiânia-GO) utilizando o SWMM - Storm Water Management Model
    (Universidade Federal de Goiás, 2013-08-09) Rocha, Nayda; Hora, Karla Emannuela Ribeiro; http://lattes.cnpq.br/6451685640638572; Araújo, José Vicente Granato de; http://lattes.cnpq.br/2401010575058480
    The effect of urbanization and insufficient supervision of the use of natural resources by the government has led to increasing degradation of the environment in Brazil. This can be seen by the suppression of riparian vegetation, which is essential for the survival and maintenance of the quality of water sources. In this sense, the actions of development of land, housing provision and sanitation in Brazil must have, among other objectives, to ensure an environment conducive to ecosystems and human life support. This research aimed to identify the characteristics of occupation of Córrego Samambaia Basin in Goiânia, used for public water supply, correlating land use with hydrological processes. The methodology adopted consisted in: identifying the theoretical framework from literature and choose a basin to develop a case study; select and gather information from the object of study contained in published documents, restricted texts, satellite imagery, site visits, to generate the necessary data for modeling, and apply the hydrologic model Storm Water Management Model (SWMM) in three distinct periods and three proposed scenarios to understand the hydrological responses in the study area due to different levels of human occupation. The results obtained with this research indicate that the hydrological watershed responses can vary widely if the waterproofing process continue to increase. Results shown that between 1992 (with impervious area of 7%) and the proposed Scenario 3 (with impervious area of 70%) the increase in runoff is approximately 24 times while the infiltration becomes 70% smaller. If the basin achieves an index greater than 50% of impervious area, it will probably become unviable for public supply purposes. In order to preserve the watershed for its main purpose to continue supplying the municipality this study proposes an appropriated urban planning, with the construction of a Linear Park along the creek and the adoption of new levels of urban occupation. This planning model may be used in other urban basins, taking into account the characteristics of each site.