With the growing demand for energy in the world, the search for new sources of energy
have motivated new studies about renewable energy sources that allow us to replace
fossil fuels gradually, as they are responsible for higher levels of pollutants emission if
compared to biofuels. Population growth together with the improvement of sewage
treatment efficiency, that directly impacts the growth of sewage sludge production,
which is the main solid waste generated in the Sewage Treatment Stations. The sludge
can be used in technological processes, like pyrolysis, gasification and combustion, in
order to produce alternative energy. The pyrolysis applied in sludge is a promising
technology that favor the production of four fractions: biooil (organic liquid fraction),
water fraction, solid fraction and gas fraction, showing a high fuel potential. This paper
aims to evaluate the pyrolysis process applied to domestic sludge as an alternative
source of energy and identify the process conditions that resulted in better efficiency of
the biooil produced.
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