2025-07-212025-07-212025https://repositorio.ifal.edu.br/handle/123456789/1079Water is a vital resource for human beings and is used in many daily activities, such as personal hygiene, cleaning and eating. To ensure safety and quality, water must undergo treatment interventions to make it drinkable, according to its classification and provisions of Brazilian legislation. This article aims to show the main water treatment processes, such as: coagulation, flocculation, decantation, filtration, disinfection, fluoridation and neutralization. It also discusses the importance of this treatment for health, especially due to the prevention of waterborne diseases. Finally, it presents the parameters for its potability and the challenges faced in providing quality water to the population.ptTrabalho de Conclusão de CursoENGENHARIAS::ENGENHARIA SANITARIA::RECURSOS HIDRICOS