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This article aims to diagnose the losses in the water supply system of the residential village of the Federal University of Rio de Janeiro (UFRJ) through the water balance methodology of the International Water Association (IWA). The water balance base scenario is the first and fundamental step in the elaboration of a network diagnosis. Through the elaboration of the water balance it is possible to disaggregate the portion of the system's losses, with the identification of real and apparent losses. The water balance matrix was extracted in this study using the WB EasyCalc software, version 5.18 (Oct / 2019), recommended by IWA. An analysis was carried out using the top-down approach in the measurement and control district (DMC) of the residential village of UFRJ, for the study period from march 2019 to february 2020. Macro and micro-measurement data, as well as all other necessary information was provided by the region's service provider, the State Water and Sewage Company of Rio de Janeiro (CEDAE). This study also highlights the situation of the performance indicators of the national sanitation information system (SNIS) obtained in comparison with the national and regional panorama of losses in Brazil. The results show that the losses are high and predominantly physical in the study region. Therefore, investments in actions to mitigate real losses should be prioritized for the region, according to the IWA's understanding, to quote: Infrastructure management, pressure management, active control of leaks and agility and quality in repair.

revista científica semana acadêmica

METODOLOGIA DA IWA APLICADA AO DIAGNÓSTICO DE PERDAS DO SISTEMA DE ABASTECIMENTO DE ÁGUA DA CIDADE UNIVERSITÁRIA: ABORDAGEM TOP-DOWN NO DMC DA VILA RESIDENCIAL DA UFRJ