Influencia das características físicas na determinação de parâmetros hidráulicos de resíduos sólidos urbanos

Abstract

In Brazilian landfill projects waste parameters from European and North American countries are used. However, the residues have different characteristics according to the income of the population, cultural habits, climate, among others. In order to improve the procedures related to the disposal of municipal solid waste (MSW) in landfills, it is necessary to determine parameters according to the Brazilian reality. In this context, the objective of this study was to evaluate the influence of gravimetric composition and specific gravity on the hydraulic conductivity value and the field capacity of municipal solid waste. Samples of MSW were collected on the sorting and composting plant in Nazareno and also from restaurants in Lavras, both cities in Minas Gerais, Brazil. This paper brings up details from the developed equipment, also from the methodology used and the obtained results. Conclusions points out that the equipment suits the employed procedures. Besides, it can be concluded that there was a decrease on the hydraulic conductivity values and an increase on the field capacity for the MSW samples with bigger specific weight. However, no significant variations were observed for these parameters in relation with the gravimetric compositions, probably due to the type and quality of the utilized materials.