Dissertações em Engenharia Civil (Mestrado) - PPGEC/ITEC
URI Permanente para esta coleçãohttps://repositorio.ufpa.br/handle/2011/2304
O Mestrado Acadêmico foi aprovado pela CAPES em 1999 e inicou-se em 2001 pertente ao Programa de Pós-Graduação em Engenharia Civil (PPGEC) do Instituto de Tecnologia (ITEC) da Universidade Federal do Pará (UFPA).
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Navegando Dissertações em Engenharia Civil (Mestrado) - PPGEC/ITEC por Orientadores "ALVES, Rui Guilherme Cavaleiro de Macedo"
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Item Acesso aberto (Open Access) SIG aplicado na pré-seleção de áreas para a implantação de aterro sanitário no município de Breves (PA)(Universidade Federal do Pará, 2016-03-23) ACIOLY, Andreza Vieira; ALVES, Rui Guilherme Cavaleiro de Macedo; http://lattes.cnpq.br/1902384822911246The inadequate location of the final solid residual disposal is a big problem that can compromise the environmental resources. In Breves city (PA) was developed and applied an area location methodology to implementation de sanitary landfill, using geoprocessing techniques, through Geographic Information System - GIS.In the maps confection were used data shapes from IBGE (2010) in the basic scale 1: 250.000 together with images from do Google Earth and processed using the software Arcgis 10.1. Two buffers delimited respectively from the municipal headquarters from na are of 20 km ray and inside this limite by conditioning environmental questions and flight security, in a 13 km ray to the airport. With the overlap of these upcoming community areas were excluded (500 m) and surface water bodies (200m); and prioritized anthropized and access roads already in place. Three areas were pre-selected. In a second phase these pre-selected areas received grades in own criteria: (a) the proximity of the housing communities; (b) the distance from the surface water sources; (c) the soil characteristics of the land available; and (d) the size of pre-selected areas. The area with the largest amount of notes was chosen as the best among the pre-selected ones. Concluding, it is recommended the methodology applied, for convenience and economy, seen the necessity of dislocation of the teams to the selected place only to prove the facts.Item Acesso aberto (Open Access) Utilização do caroço de açaí como leito filtrante no tratamento de água de abastecimento e residuária(Universidade Federal do Pará, 2014-06-04) COSTA, Letícia dos Santos; ALVES, Rui Guilherme Cavaleiro de Macedo; http://lattes.cnpq.br/1902384822911246This research was to assess the implementation of the waste generated by pulping açaí for the production of an alternative coal for use as a filter bed in the treatment of water supply and wastewater process, giving added value and proper waste disposal. The study was conducted in 4 steps, first was done collecting and preparing the stones for further characterization of alternative coal, filter assembly and verification of water quality and sewage treatment. The experimental pilot system was composed of two columns of PVC pipe with a diameter of 100 mm, with alternate filter bed, one for the treatment water supply and the other for post-treatment of sewage, both with 1.0 m time. Was used only a single layer of the filter bed 30 cm in each alternate carbon filter which was fed with 5.0 L of raw water (AB), the input obtained from the Water Treatment Plant and 5.0 L treated sewage (ET) obtained at the output of the Vila da Barca sewage Treatment Plant. The physico-chemical analysis of water and sewage filtered by alternate coal were taken every 24 hours and 48 hours, observing the times of contact that showed better adsorption of the particles. Monitoring of filters with filter bed of lump calcined acai performed well, especially in the case of Suspended Solids retention with 23% efficiency in removing color with efficiency of 51% and Turbidity with efficiency 32% for water. Sewage treatment showed the alternate filter removal efficiency of 72% for ammonia nitrogen, 55% efficiency in removing organic matter represented by the COD and 48% removal efficiency of suspended solids. The review by hypothesis tests applied to assess the equivalence between the mean values of representative pairs of variables (24h and 48h) of physico-chemical parameters studied in alternative filtration for water and sewage showed equivalence between pairs of pH, Turbidity, hardness (mg-CaCO3 / L) hardness (mg- MgCO3 / L), TS and SS (relative to water filtration); Total phosphorus, ST, SD and SF (referring filtration of sewage). It was possible to state that there was considerable variation in the average of these variables between the contact times (24h and 48h) values. Also, it was possible to state that the contact time of 48 hours caused greater reductions in the concentrations of variables, Color (for water); Ammonia-N, COD and SS (sewage). The contact time of 48 hours was the most efficient alternative to filtration have gotten promote significant reductions in some variables.