In the industry of pulp and paper is one of the largest in the world, being responsible for the preservation and planting of a million hectares of land, such as eucalyptus and pine to be useful for the supply of the raw material, which is so necessary for a variety of industries in the market, including the manufacture of various types of paper, diapers, sanitary napkins, fabrics, adhesives, and others.

According to the GRADES, and the industry is comprised of 220 companies across 18 states in the country, generating a 128-thousand direct jobs and more than 640 thousand indirect jobs, with an annual turnover of more than 60 billion dollars.

In the process of production, for the production of pulp, there is a disruption of the connections of the individual fibers within the wood, which gave rise to the pulp, so that the wood is not subjected to the baking time in a digester, a chemical solution is used to separate the fiber from the cellulose from the lignin, thus generating a large amount of heat, which is transferred to the water in the process of being cooled by the cooling water.