Resumo:
The lack of ground that is used like landfill where the wastes are deposited, it’s a great
problem in the pulp and paper mills in Brazil and in the world. Primary sludge is a waste
produced in the pulping and bleaching processes and the processes of formation of paper’s
sheet, nowadays these wastes are deposited in the landfills. The description of the processes
and the quantity of the mills in Brazil show the dimension of the problem, about 2,0% of the
pulp and paper are lost like the primary sludge, the fired in biomass boiler abides by the law
of the thermal treatment to sludge in Brazil. This work shows the thermal analysis, besides the
analysis of emissions of this waste fired in a grate boiler, it present the news technologies to
burn the biomass and the control of pollutants emissions. The thermal analysis and the real
parameters of operation get the dates of efficiency of the boiler. It introduces the case of the
Suzano Papel e Celulose.
