Proposta de gestão dos resíduos de construção e demolição (RCD) no Município de Viçosa, MG.

• Autor(a) principal: Buselli, Ana Amélia Paulino Tinôco
• Data de Publicação: 2012
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/832
• topic: Reciclagem; Resíduos de construção e demolição (RCD); Gestão de resíduos; Recycling; Construction and demolition waste (C&D waste); Waste management; CNPQ::ENGENHARIAS::ENGENHARIA CIVIL::GEOTECNICA

Significant amount of the total mass of municipal solid waste (MSW) is generated by the construction industry. From an environmental point of view, one of the main problems of construction and demolition waste (C&D waste) is the large volume generated resulting in a variety of negative impacts. Thus, generation, waste reduction, recycling and reuse of RCD are fundamental to changing this scenario. Sustainable alternatives have been studied for the use of C&D waste as recycled aggregate in chemical barriers, paving, production of concrete blocks, among others. Concerning the industrial sector, in the specific case of the city of Viçosa, MG, the construction industry accounts for approximately 22% of Gross Domestic Product. The continuous expansion of the Federal University of Viçosa (UFV) and the new job positions have demanded the construction of new housing, as well as the increasing and improvement of general services. In this context, the main aim of this thesis was to conduct a detailed diagnosis of the generation, transportation and disposal of C&D waste in the city of Viçosa and elaborate a proposal for a differentiated management of the C&D waste to this city. The secondary aim was to evaluate the retention capacity of some heavy metals (Mn2+, Zn2+, Cd2+ e Pb2+) by small particles of C&D waste, by batch tests, considering its possible use as a chemical barrier. The methodology was divided in field work, archival research and laboratorial analysis. The main results can be mentioned: the estimated of C&D waste generation in the city; elaboration of thematic maps identifying points of clandestine disposal and C&D waste disposal area; gravimetric composition and the chemical, physical and physicochemical and mineralogical composition of the C&D waste. Based on the obtained results, it was elaborated a proposal for a differentiated management of C&D Waste for the city of Viçosa,MG, which did not seek to exhaust the subject, or address all aspects relating to the preparation of a C&D Waste Management Plan. About the batch tests, it was found that the Langmuir and Freundlich models, with some exceptions, did not reflect well the adsorption of metal in C&D Waste.