EM - Escola de Minas
URI permanente desta comunidadehttp://www.hml.repositorio.ufop.br/handle/123456789/6
Notícias
A Escola de Minas de Ouro Preto foi fundada pelo cientista Claude Henri Gorceix e inaugurada em 12 de outubro de 1876.
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2 resultados
Resultados da Pesquisa
Item Geometry and water quality of the unconfined aquifer near the Piracicaba river, Ipatinga/MG, Brazil.(2019) Oliveira, Débora Almeida de; Galvão, Paulo Henrique FerreiraGroundwater is the main source of drinking water for the city of Ipatinga/MG, Brazil. However, there is a lack of study about hydrogeology in the region, as well as indications of quality alterations of water resources. The goal is to understand the hydrogeology surrounding the COPASA's Water Treatment Plant and the Piracicaba river areas, where the main water supply wells are located. Maps of potentiometric surface, isobaths and isopachs, hydrogeological cross-section, aquifer pumping tests, and physicochemical analysis interpretations were performed. Results indicate the aquifer is unconfined, with high transmissivity and hydraulic conductivity values, which explain the high values of discharge in the wells. The Piracicaba river can be considered as influent, with its water flow converging to the aquifer. Groundwater shows chemical parameters at low levels, according to Brazilian drinking-water quality guidelines, with local presence of aluminum, iron, and manganese, requiring only conventional treatment processes before distributionItem Relations of the groundwater quality and disorderly occupation in an Amazon low-income neighborhood developed over a former dump area, Santare´m/PA, Brazil.(2018) Mendes, Anderson Conceição; Galvão, Paulo Henrique Ferreira; Sousa, Janice Paiva de; Silva, Iverson Costa Moya da; Carneiro, Raimundo NonatoGroundwaters are better protected than surface waters. However, in unconfined conditions, groundwater can be easily contaminated when the land use and occupation are considered as determining factor. In the city of Santare´m/PA, Brazil, the district of Santo Andre´ has experienced a population growth until reaching areas close to a former dump, and this may have caused an impact on the quality of the Alter do Cha˜o Aquifer. In order to analyze these impacts generated, seven ground-penetrating radar sections to set the dump boundaries, physicochemical and bacteriological analyses in six pumping wells to set the drinkability values of the water, and potentiometric surface map in order to understand groundwater flow directions were carried out. Geophysical data indicated the presence of lateritic crusts, buried pipelines, as well as faults and fractures, which may serve as preferred pathways for contaminant infiltrations up to the aquifer. The geophysical data also indicated the dump boundaries are larger than expected, where the population has built their residences over the compacted garbage. Consequently, every pumping well presented total amounts of coliforms higher than the allowed values, and three of these wells have above 10 mg/L values of nitrate, indicating the region has waters in disagreement to the drinkability standards set, directly influenced by the contamination of the former dump under the Alter do Chão Aquifer.