Desenvolvimento de uma plataforma de monitoramento automático da qualidade da água para consumo humano

• Main Author: Santos, Bárbara Gobato dos
• Publication Date: 2025
• Format: Bachelor thesis
• Language: por
• Source: Repositório Institucional da UTFPR (da Universidade Tecnológica Federal do Paraná (RIUT))
• Download full: http://repositorio.utfpr.edu.br/jspui/handle/1/36750
• topic: Abastecimento de água na indústria; Controle de qualidade da água; Automação; Industrial water supply; Water quality management; Automation; CNPQ::ENGENHARIAS::ENGENHARIA SANITARIA

In Brazilian municipalities, the monitoring of water quality for human consumption is still largely conducted through conventional methods, which can lead to operational challenges and increased susceptibility to human errors. The adoption of automated systems emerges as a promising alternative to enhance this process, ensuring greater efficiency, reliability, and agility in detecting possible nonconformities. In this context, the main objective of this study is to develop an automated platform for water quality monitoring, aiming for its future implementation in an industry located in Francisco Beltrão – PR. To achieve this, three fundamental steps were established: (i) identifying the water quality parameters required for monitoring in the industry, considering current regulations and the organization's characteristics; (ii) selecting the parameters that can be monitored automatically using sensors; and (iii) developing an automated local reading and alert system capable of providing real-time information on measured values and signaling nonconformities. Currently, the company monitors parameters such as turbidity, free residual chlorine, pH, apparent color, odor, and taste. However, according to current legislation, it should monitor and control a total of 100 parameters. Among these, only four can be measured automatically using sensors: turbidity, pH, total dissolved solids, and free residual chlorine. The adoption of an automated system for these parameters can optimize the monitoring and control routine of the water quality used in the industry, reducing the need for manual interventions and increasing the reliability of the obtained data. The system development involved assembling an electronic circuit to integrate the sensors with the Arduino UNO microcontroller. For this purpose, specific sensors were used for the selected parameters: the pH sensor (PH4502C) and the turbidity sensor (ST100). The programming was carried out using the Arduino IDE software, enabling real-time data collection and display. Additionally, the system includes an alert mechanism that notifies the user whenever the measured values exceed the limits established by water quality regulations for human consumption. The results demonstrate that implementing this system can represent a significant advancement in monitoring and controlling the quality of water used in the industry, ensuring greater precision in measuring the monitored parameters and enabling a faster response to potential deviations. Furthermore, process automation contributes to reducing operational costs and minimizing errors associated with manual sample collection and laboratory analyses. Thus, adopting an automated monitoring system can not only meet regulatory requirements but also provide greater safety and efficiency in monitoring the quality of water for human consumption within the industry. The implementation of this technology represents an important step toward modernizing water quality monitoring, making the process more agile.