Aplicação de Índice de Concordância FUZZY e Índice de Conformidade para verificação da qualidade das águas bruta e tratada em sistemas na Bacia do Salgado

• Autor(a) principal: Barroso, Matheus da Nóbrega Braga
• Data de Publicação: 2018
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
• Texto Completo: http://www.repositorio.ufc.br/handle/riufc/45618
• topic: Número Fuzzy Triangular; Índice de Conformidade; Concordância; Água Bruta; Água Tratada; Garantia; Parâmetros

Ensuring quality water for population is of fundamental importance. Frequently, irregularities are noted in the standards required by the regulations. The lack of appropriated treatment, attached to warranty failures, are linked to the lack of monitoring and prediction of performance. Water management, through effective control, mainly of water treatment systems and water supply networks, is extremely important to guarantee the quality of treated water that arrives at homes, hospitals, industries, businesses, companies and schools. Moreover, beyond the importance of monitoring and controlling treated water, it is important to collect data and check the compliance with raw water regulations, aiming to produce informations that guides users in the suitability of raw water for multiple uses, promote the conservation of water quality and provide informations that make it possible to predict water quality and to subsidize new ventures and users. In order to ensure the effective compliance of the limits determined by specific standards, mathematical modeling tools are used to predict or verify the occurence of this sanitary and economic phenomenon. In the present work, two mathematical methods were used to ascertain the quality of the systems and dams in the years of study. The first, Fuzzy Concordance Index, was performed by the implementation of Fuzzy Logic principles using the Triangular Fuzzy Number (TFN) method, which emerged as a viable model, able to deal with the uncertainties and study the warranty of the waters in the study, being the TFN a methodology of simple and easy interpretation, possessing a low computational effort. The second, Compliance Index, served to support the results obtained by the NFT, demonstrating the rate of failure and intensity of the data collected in relation to it’s limits. The study was carried out by analyzing data collected for the parameters of Chloride, Free Residual Chlorine, Total Coliforms, Apparent Color, Total Hardness, pH and Turbidity in water treatment plants, networks and dams of Várzea Alegre, Altaneira and Cedro municipalities, constituents of the Salgado’s Basin, in the years 2015, 2016 and 2017. From the results obtained, a good guarantee and compliance, in general, was observed for the parameters of Chloride, Free Residual Chlorine, Total Hardness and pH. The parameters Total Coliforms, Apparent Color and Turbidity presented poor quality performance. The systems did not present constancy, varying from year to year, the average quality offered, which demonstrates a non-regularity in the treatment and monitoring.