Groundwater Flow
Mostrando 25-36 de 71 artigos, teses e dissertações.
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25. Avaliação da contaminação de águas subterrâneas por cemitérios: estudo de caso de Tabuleiro - MG / Evaluation of contamination of groundwater by graveyards: a case study Tabuleiro - MG
This work presents the results of a case study carried out at Tabuleiro graveyard, located at Minas Gerais State, southeast Brazil. The graveyard is located at Formoso river flood plain. Several chemical and physical analyses were done at underground water collected at monitoring wells installed inside the graveyard and on its surrounds. Monitoring wells wer
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/07/2008
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26. Determinação da recarga profunda na bacia-piloto do Ribeirão da Onça em zona de afloramento do Sistema Aqüífero Guarani a partir de balanço hídrico em zona saturada / Determination of the deep recharge in the Ribeirão da Onça pilot basin in the outcrop zone of the Guarani Aquifer System through water balance in the saturated zone
Main objective of this work was the determination of the deep recharge in the Ribeirão da Onça basin through water balance in the soil saturated zone. This basin is located in the outcrop zone of the Guarani Aquifer System (GAS) in the São Paulo State - Brazil and is covered by cenozoic sedimentary soil. The water balance model involved the determination
Publicado em: 2008
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27. Características químicas da água de córregos do Distrito Federal sob diferentes usos e cobertura do solo
The Cerrado is the second largest Brazilian biome and location of the headwaters of three important hydrological basins in Brazil. In spite of the biological and ecological relevance of this biome, there is little information about how land use changes affect the chemistry of surface water, groundwater and streams. In order to evaluate the effects of these c
Publicado em: 2008
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28. SIMULATION OF ATRAZINE DEGRADATION BY IN SITU ELECTROCHEMICALLY GENERATED OZONE FOR GROUNDWATER REMEDIATION / SIMULAÇÃO DA DEGRADAÇÃO DE ATRAZINA COM OZÔNIO GERADO ELETROQUIMICAMENTE IN SITU PARA REMEDIAÇÃO DE ÁGUAS SUBTERRÂNEAS
The impact of pesticides on the quality of groundwater has been the subject of scientific and public health concerns in the entire planet, especially in areas where groundwater is mainly used for human consumption. The intensive use of pesticides in agriculture and the high persistence of several of these chemicals have required a rigorous control of possibl
Publicado em: 2008
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29. Caracterização hidrogeológica do aquífero cauê, quadrilátero ferrífero, MG: Subsídios para a gestão dos recursos hídricos no quadrilátero ferrífero
The Cauê aquifer encompasses the geological unit that is the host of the Iron Quadrangle bodies of iron ore (Cauê formation). It has got significant hydrogeological potential, which is used for part of the water supply for Belo Horizontes metropolitan area, and has got a fundamental importance for the maintenance of the general environmental conditions of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/12/2007
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30. Fluxo hÃdrico subterrÃneo: modelagem computacional e calibraÃÃo iterativa dos parÃmetros hidrodinÃmicos. / Groundwater Flow: computation modeling and calibration of the parameters hydrodynamics
The current work presents a computer simulation of groundwater flow in the Cariri Valley, which is located in the State of CearÃ. The cities of Barbalha and MissÃo Velha are located inside this area. In order to perform the computer modeling the software Processing MODFLOW Pro was used. It was used both permanent and time dependent situations. Also both ra
Publicado em: 2007
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31. Simulation groundwater flow in the region of the Cariri and calibration using hydraulic head gradient / SIMULAÃÃO COMPUTACIONAL DO FLUXO HÃDRICO SUBTERRÃNEO NA REGIÃO DO CARIRI E CALIBRAÃÃO UTILIZANDO GRADIENTE DAS CARGAS HIDRÃULICAS
The main objective of this research is to use a computer code to simulate groundwater flow in an area in the south of the state of Cearà situated between the cities of Crato, Juazeiro do Norte and Barbalha, in the âCaririâ Valley. The computer code used was MODFLOW, a 3-D finite difference groundwater flow model. Two different scenarios we simulated: the
Publicado em: 2007
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32. NUMERICAL IMPLEMENTATION OF ACOPPLING SURFACE WATER: GROUNDWATER / UMA IMPLEMENTAÇÃO NUMÉRICA DO ACOPLAMENTO ÁGUA SUPERFICIAL: ÁGUA SUBTERRÂNEA
While analyzing the interaction between the hydrological processes of surface and groundwater flow, it is seen that there is a big difference in its interaction in the space and time. These processes can be represented in a qualitative form as part of the hydrological cycle, demonstrating its dependences and importance in the hydrological balance. This work
Publicado em: 2007
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33. Tridimensional modelling of groundwater flow in an unconfined, shallow aquifer in Parque Ecologico Tiete, São Paulo / Modelagem tridimensional de fluxo de águas subterrâneas em um aqüífero livre e raso: aplicação no Parque Ecológico do Tietê - São Paulo
The importance of studying unconfined and shallow aquifers is verified when taking into account that these aquifers are highly vulnerable to contamination and that they are often located under heavily populated regions. A detailed three-dimensional and transient model, which represents the groundwater flow in an area of an unconfined and shallow aquifer at t
Publicado em: 2007
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34. DiagnÃstico ambiental da Ãrea do aterro sanitÃrio do MunicÃpio de Cascavel / Environmental diagnosis of the area of the sanitary landfill of the municipal district of Cascavel â PR
This present research was developed in the State University of the West of Paranà - Unioeste - using the area of Cascavelâs Sanitary landfil for the obtaining of coming data of contamination of the disposition of solid residues. Being like this monitoring the flow of originated pollutants of the sanitary landfil, through a conjugated diagnosis being used o
Publicado em: 2007
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35. MODELAGEM NUMÉRICA DE FLUXO 3D EM MEIOS POROSOS / NUMERICAL MODELING OF 3D FLOW IN POROUS MEDIA
Numerical simulations tend to simplify the behavior of real problems, mainly through the choice of 2D models to describe the hydromechanical responses of earth dams, excavations, foundations, etc., partly because it is easier to construct geometrical meshes, it is simpler to impose the required boundary conditions, the computer calculations are done more rap
Publicado em: 2006
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36. DISSOLVED ORGANIC CARBON CONCENTRATIONS AND BALANCES IN TWO WATERSHEDS OF RONDÔNIA: COMPARASION BETWEEN FOREST AND PASTURE / "Concentrações e balanços de carbono orgânico dissolvido em duas bacias do Estado de Rondônia: uma comparação entre floresta e pastagem"
Dissolved Organic Carbon (DOC) is one of the main fractions of organic carbon exported in rivers and other flow paths in watersheds. In the Amazon, studies of DOC in waters focus mainly on the large basins of the central region, with few analyses of changes in its dynamics after the replacement of forests by pastures, one of the most important land use chang
Publicado em: 2006