MECANISMO DE DESENVOLVIMENTO LIMPO (MDL) NO SETOR SUCROALCOOLEIRO: ANALISE DA ETAPA DA QUEIMA DO BAGAÇO DA CANA PARA CO-GERAÇÃO DE ENERGIA E USO DA CINZA COMO FERTILIZANTE.

Abstract

Through the case study of the CDM process conducted in 2008 by the company Jalles Machado Inc, the sugarcane industry, this paper contributes to the chemical analysis of the ash from burning (bagasse) from sugar cane, to generate energy, with the scope of verifying the presence of heavy metals, as this ash is administered mostly in soils, such as fertilizer. To perform the analysis were assembled in triplicate columns of polypropylene filled with sample Rhodic, Oxisol and mixing, and Typic Grey, which underwent 4 rainy episodes. Later analysis of statistics collected percolating solution were performed using the SAS statistical program. With respect to the water flow, it was found that the flows were higher for the sample mixture as compared to the other treatments. It was also found that the variation of metal concentrations was not significant for soil (control), indicating that the application of 4 rainy episodes did not affect the content of the analyzed metals; there is a significant increase in concentrations of Manganese (Mn), Copper (Cu), Chromium (Cr) and Potassium (K) in the soil after application of gray and mix. Thus, the use of incineration residue of sugarcane bagasse in agriculture can lead to increased levels of some micronutrients in the soil, they can reach toxic levels and become sources of contamination. Another factor of great relevance of the CDM, as can be seen in the case study company Jalles Machado S / A, is advancing the development of new energy matrices and to obtain carbon credits, the company burns through modern boilers bagasse from sugar cane processed, and produces energy for own consumption and sale to the local power company. With this study, it appears that Brazil has a prominent place in the number of CDM projects in development, and that the state of Goiás is responsible for 6% (six percent) of the total number of national projects. The aim is thus to the development of the subject, encourage new CDM projects, contributing to the regional development of the state of Goiás and across the country.