Volume 33, N. 3, September-December 2010 | DOWNLOAD PDF(17 downloads)
Abstract
This paper refers to a Municipal Solid Waste (MSW) compressibility study of waste disposed of in small scale sanitary landfills in the municipality of Presidente Lucena in the State of Rio Grande do Sul, Brazil. The research aims at the application and development of settlement prediction models based on settlement data collected on site. The studies were divided into the following stages: application of prediction models based on Soil Mechanics’ classical concepts and the creation of a regression model, based on the physical and chemical landfill monitoring results, in order to estimate differential settlements. The results showed that the application of data collected at the monitored small scale landfills through classical settlement prediction models resulted in significant errors. However, the model created based upon the regression analysis, perhaps because it considered the specifics associated with disposal techniques in small landfills, was the most realistic in terms of settlement prediction, such that it is applicable to other similar systems, be it due to the characteristics of disposed waste, as well as to the employed operational details.
