Incorporação de lodo de tratamento de água em painéis de madeira aglomerada

• Autor(a) principal: Silva, Cynthia Algayer da
• Data de Publicação: 2015
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: Repositório Institucional da Universidade Estadual de Maringá (RI-UEM)
• Texto Completo: http://repositorio.uem.br:8080/jspui/handle/1/3651
• topic: Resíduos sólidos; Lodo; Tratamento de água; Aglomerado; Brasil.; Solid waste; Sludge; Particleboard; Disposal; Brazil.; Engenharias; Engenharia Química

Solid waste has been reason of great concern because they are generated in large quantities and has difficulty of a proper final disposal, so it's of great importance to study the reuse of solid waste, with the aim of finding an alternative that brings benefits for people and for the environment. The main objective of this work is the incorporation of percentages of sludge from treating raw water in particleboard panels, as a form of final disposal for this solid waste. This study was conducted in two stages, the first evaluated sludge incorporating different percentages (0, 5, 10, 20 and 30%) and resin (12 and 16%), and the second step analyzed different times (7 to 12 minutes) and temperatures (110 and 160 °C) pressing in order to evaluate the effect of these parameters in the manufacture of particleboard panels process. For the characterization of sludge and wood particles were carried out physical analysis (pH, moisture content and particle size), chemical (metals, leached and solubilized), structural (XRD) and surface (SEM and EDX), and for the characterization of panels were made physical analysis (moisture content, density, water absorption and thickness swelling), chemical (metals, leaching and solubility), structural (XRD), surface (SEM and EDX) and mechanical (bending). According to the results, it can be observed the importance of the homogeneous mixture of the adhesive and the influence of the pH found in wood particles, the highest density found it was 520.15 kg.m-3 that is classified as a wood panel agglomerated of low density. So it can be concluded that the incorporation of particleboard panels WTS not affect the quality of the panel, and the low density particleboard obtained has application in the market, such as in isolation. The incorporation of WTP sludge in particleboard panels is a promising alternative disposal for this waste as a byproduct develops and encourages sustainable development, contributing to the environment.