Evaluation of the potential of the sludge from the pulp and paper industry in fitting blocks.

Reference Presenter Authors
13-002 Afonso Rangel Garcez Azevedo Azevedo, A.R.(Universidade Estadual do Norte Fluminense Darcy Ribeiro); Alexandre, J.(Universidade Estadual do Norte Fluminense); Xavier, G.d.(Universidade Estadual do Norte Fluminense); Marvila, M.T.(Universidade Estadual do Norte Fluminense); Zanelato, E.B.(Universidade Estadual do Norte Fluminense); Monteiro, S.N.(Instituto Militar de Engenharia); Cerqueira, N.A.(Centro Universitário Redentor); Petrucci, L.J.(Universidade Candido Mendes); A pulp and paper industry, generates an large amount of industrial solid waste that which mostly, are sludge state, more moist, which has the basic composition or kaolin and cellulose. The National Solid Waste Policy, in force in Brazil, instituted an obligation of an adequate destination of this material in order to improve its costs with this process. The purpose of this work was to analyze the feasibility of incorporating sludge from the pulp and paper industry into blocks with soil-cement, reducing the amount of cement in the trace, which is 2: 1 (soil: cement). Blocks were prepared for the automated pressing process at different levels of incorporation (0.5 and 10%) in mass of cement evaluating the mechanical protection and water absorption. The results showed that up to 5% of the incorporation of the analyzed blocks meet the requirements of the Brazilian technical standard and can be produced while providing an improvement of the destination process of its waste due to its environmental condition.
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