Monitoramento baseado em sensores para identificação de contaminação de água

• Autor(a) principal: Silva, Ricardo Júnior Abreu da
• Data de Publicação: 2020
• Outros Autores: Vieira, Rodrigo Mendes
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Universitário da Ânima (RUNA)
• Texto Completo: https://repositorio.animaeducacao.com.br/handle/ANIMA/11024
• topic: Plasma; Embarcado; Sensor

The intensification of mining activity and its processes, expanded the national economy, providing a complex economic dynamism, causing deep marks in regional ecosystems, as well as low levels of quality of life and environmental quality in the southern region of the State of Santa Catarina. The pollution of water sources is the most serious impact caused by the extraction of mineral coal, as they are close to deposits where the mineral is explored, due to acidic effluents from mines and coal tailings. In order to contribute to the process of purifying water contaminated with the effluents from the extraction of mineral coal, the Unisul plasma laboratory developed a reactor, which uses the technology of cold plasma by corona discharge, responsible for the ionization of a gas at low temperature , which has the advantage of promoting the simultaneous occurrence of the mining effluent remediation process, completely, being at the forefront of high cost chemical processes, via the addition of alkaline agents, and / or sulfides to precipitate dissolved metals in the form of hydroxides, carbonates and sulfides. In order to contribute to the processes carried out in the laboratory, as well as to solve the problem related to possible new contamination during the process of remediation with the plasma reactor, the development of an embedded system, capable of collecting data in real time and simultaneously the effluent remediation process was put in place. The system consists of sensors that collect pH, temperature, humidity, pressure and frequency coupled to a Becker with contaminated water, in addition to a graphical interface that presents this data at the time of collection, as well as functions to save, search and export results. For the development of the project, referring to the embedded module, the BeagleBone Black development platform, physical sensors and the C programming language were used. For the graphical interface, developed as a web, the VUE framework was used, as well as JavaScript and other tools to assist in the development and debugging of the application. For data storage, it was decided to use PostgreSQL. With the prototype developed, the tests were carried out, as well as the evaluation of the results obtained, in the laboratory, accompanied by the responsible teacher Anelise Leal Vieira Cubas, and the possibility of obtaining the data in real time was verified, minimizing the changes in the data used by the instability in plasma processes, as well as the accuracy of the data used simultaneously, that is, jointly collected values of pH, temperature, temperature, pressure and frequency. Taking these benefits into account, we ensure that the water in the treatment is not contaminated by other bacteria.