Sewage sludge refers to a nutrient-rich by-product and organic matter from treatment plants and has become a challenge for many research segments to find a rational and sustainable destination for this material. In this context, the carbonization of biomass (by the pyrolysis process) results in biochar, characterized by a very stable material with specific physical and chemical properties and can represent a very important tool for this challenge. Thus, the objective of the present work was to transform, bypyrolysis process, small portions of the biosolid generated in Rancharia ETE into biochar. In addition, both the biosolid and the generated bicarbons were subjected to physical, chemical and structural analyzes in order to proceed with their respective characterization. From the analysis, it was found that the treatment submitted to temperature of 550°C as the best option for possible applications.Keywords:biosolid; pyrolysis; biochar.

The present study of the Água da Colônia watershed in the municipality of Presidente Venceslaú-SP is an analysis of the environmental impacts concerning the residents' practices, with the purpose of recommending mitigation measures and recommending habit modifications for conservation and ecosystem stability. For this, some physical-chemical analysis, field visits, literature review, among others, were necessary. In this way, it was possible to obtain knowledge of the current situation of the microbasin, considering the activities of the inhabitants against the natural resources. Some adversities were found in the results of the analyzes, but in general, no worrisome highlight. In addition, the observation of the routine of the residents, it was possible to evidence some justifications for the loss of quality of life of the same ones, that comes from their own impacting attitudes, since it was concluded that any activities harmful to the environment, tend to reflect the being cause.