Programa de Pós-Graduação em Engenharia de Barragem e Gestão Ambiental - PEBGA/NDAE/Tucuruí
URI Permanente desta comunidadehttps://repositorio.ufpa.br/handle/2011/9395
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Navegando Programa de Pós-Graduação em Engenharia de Barragem e Gestão Ambiental - PEBGA/NDAE/Tucuruí por Assunto "Água - Qualidade"
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Item Acesso aberto (Open Access) Construção de um protótipo de barco robô de baixo custo para análise de qualidade de água em rios e reservatórios(Universidade Federal do Pará, 2020) MARTINS, Leandro Ramos; BAYMA, Rafael Suzuki; http://lattes.cnpq.br/6240525080111166The National Water Agency, through its National Water Quality Assessment Program, operates a monitoring network with 1874 data recording points throughout the national territory together with the states, where the analysis of four basic parameters is carried out. According to the National Water Agency, the number of points is insufficient for the monitoring of the quality of the water in the lakes and river to be assessed throughout their course, which promotes the lack of data and information, generating gaps in the monitoring that are not can reverse. One option that is under development to solve this problem that is not exclusive to Brazil, is the use of robot boats, which has shown to be a promising technology. This work proposes the construction of a robot boat prototype for low-cost water quality analysis, and promotes the analysis of the use of robotic vessels in order to assist the activities of collecting and analyzing water quality in order to facilitate and streamline monitoring. The prototype developed included the use of low-cost technologies in its design and mechanical, electrical and electronic assembly in addition to the human machine interface. The robot boat was tested on bench and in the field, obtaining satisfactory results for the measurements of ph, temperature and collection, refrigeration and transport of water samples, a function not observed in other robot boat projects.Item Acesso aberto (Open Access) Influência operacional de um reservatório na dinâmica de nutrientes no processo de eutrofização – estudo de caso UHE Tucuruí(Universidade Federal do Pará, 2019-09-28) OLIVEIRA, Michele Araújo de; SARAIVA, Augusto Cesar Fonseca; http://lattes.cnpq.br/7466500214796269; ISHIHARA, Júnior Hiroyuki; http://lattes.cnpq.br/3498874642887006The Amazon region contains a large water reserve, with rivers that present favorable behaviors for the installation of new dams. However, this change brings with it alterations in hydrological behavior, which leads to limnological changes, caused not only by the act of the water damming, but also by the increased population attracted to these areas in search of new opportunities. This leads to the generation of nutrients that are then released into the water body, mainly due to the precarious effluent treatment in these regions. In this context, the aim of this study was to calculate the Trophic State Index (TSI) at the Tucuruí HPP reservoir, through the aid of software packages and laboratory analyses of field data, analyzing the spatiotemporal behavior of the main nutrients responsible for this process in this area, using two models, namely Carlson‘s (1977) and Lamparelli ‗s (2004) models. The study also proposes a statistical analysis of the relationship between the behavior of the operational regime of the hydropower plant (HPP) with the situation of eutrophication of the reservoir, aiming to evaluate damming implications in the eutrophication process that occurs in the reservoir and its consequences. Eutrophication variability was observed both spatially and temporally, by the Lamparelli (2004) classification, where some points presented an oligotrophic classification during several years, indicating good water quality. However, through Carlson‘s methodology, most of the reservoir was classified as eutrophic, with lower water quality.