2024-12-092024-12-092024-10-12https://repositorio.ifal.edu.br/handle/123456789/809Water treatment results in the generation of sludge, representing a significant environmental challenge. However, it is observed that this byproduct has properties that make it suitable for use in other production chains, especially in the construction industry. In this context, this work consists of analyzing the physical, chemical, and mineralogical properties of sludge from the Water Treatment Plant (WTP) located in the municipality of Arapiraca-AL, with the aim of characterizing the sludge for its potential application in the production of ceramic bricks, aiming to promote a closed-loop cycle. The methodology adopted in this study is based on the experimental characterization of the raw material through tests for granulometry, liquid limit, plasticity, X-ray fluorescence, and X-ray diffraction, in addition to thermogravimetric analysis. The results indicated that the sludge is classified as fine aggregate, with a predominance of medium and fine particle size distribution. Additionally, the byproduct was characterized as non-plastic. In the chemical analysis of the environmental liability, the presence of fluxing chemical components such as K2O (4,52%), CaO (1,86%), and MgO (0,15%) was identified. These chemical compounds have fluxing characteristics that can reduce the time and temperature of ceramic material sintering when in contact with agents forming a vitreous phase. Furthermore, the most relevant percentages of silica (53,50%) and aluminum (28,74%) were identified in the form of quartz and kaolinite, corroborating the results obtained through X-ray fluorescence. In the thermal analysis, a mass loss of around 42% was recorded up to a temperature of 400°C. Finally, it is important to highlight the potential use of WTP sludge as an alternative raw material in light of the circular economy in the construction sector, which could contribute to mitigating environmental impacts.ptEngenharia CivilLodo da ETATratamento de águaTijolo cerâmicoWTP sludgeWater treatmentTrabalho de Conclusão de CursoENGENHARIAS::ENGENHARIA CIVIL