Fabricação de pastilhas cerâmicas com lodo proveniente de estações de tratamento de água: estudo de caso, ETA - Pato Branco, Paraná

Abstract

This work aims at presenting the confection of handcrafted ceramic mosaics, destined to be produced by the poor community of the city of Pato Branco, starting from industrial wastes of recycling as an alternative to the generating companies. The industrial waste utilized as raw material in this work was the sludge of Water Treatment Station of municipality. For the accomplishment the research methodology, the sludge was dehydrated in natura and in filter. After drying the slurry, the same was blended with cement, lime, sand and clay forming traces for the realization the search.With the traits chosen were moldedthe first fewtests with ceramic mosaics the molds and procedures adopted. Posteriorly the traits that had the best performances as staining retraction, compressive strength, presence of cracks and empty spaces were adopted for the continuation of the work. At the ceramic mosaics where were utilized 10 to 15% of sludge in the dash (dash 1-2% cement 5% sand, 8% lime, 15% slime and 70% clay. Dash 2 - 2% cement 5% sand, 8 lime%, 10% Silt and 75% Clay), we observed a satisfactory behavior in issue staining, retraction, compressive strength, presence of cracks and empty spaces.