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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Diagn?stico e propostas de uso para ?reas degradadas no munic?pio de Serop?dica-RJ pela extra??o de areia em cava.

FERREIRA, Paulo Henrique Zuzarte 31 May 2016 (has links)
Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-06-21T18:10:39Z No. of bitstreams: 1 2016 - Paulo Henrique Zuzarte Ferreira.pdf: 8140079 bytes, checksum: 525ded94eafac104525e337a897e6b50 (MD5) / Made available in DSpace on 2017-06-21T18:10:39Z (GMT). No. of bitstreams: 1 2016 - Paulo Henrique Zuzarte Ferreira.pdf: 8140079 bytes, checksum: 525ded94eafac104525e337a897e6b50 (MD5) Previous issue date: 2016-05-31 / FAPERJ / The municipality of Serop?dica, located in the state of Rio de Janeiro, is an important ore production center focused on direct employment in construction, mainly cement aggregates, in this case the sand. The exploration of these mineral resources keeps in itself a potential to generate greater environmental liabilities than those recorded in most other productive sectors of the economy, and requires special attention, as the environmental vulnerability of the area. During the end of sand mining exploration activities, it was found that there is an obstacle regarding the reuse of its spaces, in view of the characteristics of these reserves and the way that is explored by armhole. This procedure gives rise to lagoons, a major challenge to megrim sector, the municipal administration and environmental defense agencies. It was found that there is not an applicable technique to the region which can be satisfactory to a rehabilitation of degraded areas by sand mining or to an application of appropriate techniques in the implementation of decommissioning plans of the mine. All of these may lead to environmental liabilities, as the sand mining in the municipality occurs above the Aquifer of Piranema. The aim of this work was the use of floating protected cultivation technology, under low tunnel, as a proposal to post occupation of sand exploration activities destined to the use of degraded areas resulting from sand mining activities in the municipality of Serop?dica. The study was inspired by Aztec technique of Chipanas (cultivation on water) which proved quite efficient equalization of the problem. For the study, it was developed a floating construction prototype destined to the implementation of planting in sheltered area, with the use of PVC pipes. This prototype may be appropriate in the rescue of the economic function of property, in order to assist in equalizing the problem of recovering degraded areas, caused by deactivation (closure) of enterprise to Serop?dica region, generating source of income and enabling social inclusion of local community. / O munic?pio de Serop?dica, localizado no estado do RJ, ? um importante centro produtor de min?rio voltado para o emprego direto na constru??o civil, principalmente o de agregados de cimento, no caso a areia. A explora??o desses bens minerais guarda em si um potencial de gera??o de passivos ambientais maiores que as registradas na grande maioria dos outros setores produtivos da economia e requer uma aten??o especial, visto a vulnerabilidade ambiental da ?rea. Na ocasi?o do encerramento das atividades de explora??o miner?ria de areia, constatou-se que existe um entrave no que diz respeito a posterior reutiliza??o dos seus espa?os, tendo em vista as caracter?sticas destas reservas e o modo com que ? explorado por cavas. Este procedimento d? origem ?s lagoas, um grande desafio ao setor areeiro, ? administra??o municipal e os ?rg?os de defesa do meio ambiente. Verificou-se que n?o h? uma t?cnica aplic?vel ? regi?o, que seja satisfat?ria do ponto de vista da reabilita??o de ?reas degradadas pelo jazidamento de areia ou a aplica??o de t?cnicas adequadas na execu??o dos planos de descomissionamento da mina. Esses fatores podem originar passivos ambientais, visto que a explora??o de areia no munic?pio ocorre acima do Aqu?fero de Piranema. O objetivo geral deste trabalho visou a utiliza??o de tecnologia de cultivo protegido em canteiro flutuante sob t?nel baixo, como proposta de p?s-ocupa??o das atividades de jazidamento, destinado ? utiliza??o das ?reas degradadas decorrentes das atividades de minera??o de areia, no munic?pio de Serop?dica. O estudo foi inspirado na t?cnica Asteca das Chipanas (cultivo sobre ?gua) que demonstrou bastante efici?ncia na equaliza??o do problema. Para o estudo foi desenvolvido um prot?tipo de um canteiro flutuante, destinado ? execu??o do plantio em ?rea abrigada, com a utiliza??o de tubos de PVC. Este prot?tipo pode ser adequado no resgate da fun??o econ?mica da propriedade, de forma a colaborar na equaliza??o do problema da recupera??o da ?rea degradada, ocasionada pela desativa??o (fechamento) do empreendimento para regi?o de Serop?dica, gerando fonte de renda e permitindo a inclus?o social da comunidade local.

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