Estudo comparativo de custos, entre o tijolo de solo-cimento, tijolo de solo-cimento com incorporação de lodo de estação de tratamento de água e o tijolo cerâmico

• Autor(a) principal: Silva, Deyvid Rufatto
• Data de Publicação: 2020
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Universitário da Ânima (RUNA)
• Texto Completo: https://repositorio.animaeducacao.com.br/handle/ANIMA/4301
• topic: Lodo de ETA; Tijolo ecológico; Viabilidade econômica

Currently part of the sludge generated in Water Treatment Plants (WTP’s) in Brazil is disposed in landfills, mainly in superficial springs. The interest in given the sludge a reuse is due to restrictive environmental legislation and high transportation costs of this waste. In order to verify the possible uses, it is necessary to know the characteristics of the sludge and if the process proposed for the reuse is financially viable. This work aims to evaluate the economic viability and the volume of sludge incorporated in the ecological brick production process, based on the elaboration of architectural plans of a low standard residence of 45m² to make a cost comparison between the conventional soil-cement bricks, soil-cement sludge bricks and ceramic bricks. The results obtained in the comparison of costs show that the execution of masonry in conventional soil-cement bricks brought financial savings of 36.93% compared to ceramic bricks, and there was a reduction of 1,100 kilograms of natural raw material. When incorporated sludge from the WTP in the manufacture of 9,240 bricks, which corresponds to the amount necessary for the execution of masonry of the work in question, also brought financial savings of 37.13% if compared with ceramic bricks. In conclusion, the incorporation of sludge from the WTP in soil-cement bricks for civil construction brings positive results in the economic and environmental spheres. From a sustainable and ecological point of view, we can state that the use of sludge as a raw material will bring enormous advantages to the population, guaranteeing a better future and taking care of the environment which is fundamentally important for the life of living beings.