This paper presents a mathematical model to reproduce long term or secondary settlement of sanitary landfills. Secondary compression is assumed to be commanded by two main processes: mechanical creep compression and the biodegradation of waste. The model introduces a biodegradation parameter that relates mass loss with volumetric variations. The biodegr...
View ArticleThis work evaluates tropical soil adsorption capacity of a hydrophobic compound (benzene). With such purpose, a lateritic soil poor in organic matter and a hydromorphic soil rich in kaolinite with a higher organic content were studied. The lateritic soil, rich in Al and Fe oxides, presented a higher sorption capacity in grain size terms for having a hig...
View ArticleErosion is the most harmful form of soil degradation, it affects plants’ productivity and causes severe environmental damage, such as sediment accumulation and pollution of water sources. With the purpose of obtaining significant information about losses and soil deposition on the Rio das Ondas basin, a study of the losses caused by erosion by...
View ArticleThe subject of this paper is the application of a morphological classification of MSW in the city of Rio de Janeiro based on the German recommendation DGGT (1994) – E 1-7 GDA. This recommendation deals with the identification and description of waste according to aspects of waste mechanics. This will give the environmental control agency and c...
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