LINS, G. L.; http://lattes.cnpq.br/3073458817666068; LINS, Gabriela da Luz.
Résumé:
Water guarantees the maintenance of human life and essential sectors of society. Its
distribution, commonly in urban centers, is managed by supply companies. However, in
rural and/or diffuse communities, this access becomes more precarious due to the absence
of water supply networks. Added to this difficulty is the irregular rainfall in the semi-arid
region and its high evaporation rates that reduce surface runoff. To meet the need for
human consumption, alternative supply solutions emerge, such as the SAAC (Rainwater
Harvesting System). An initiative by the Federal Government for the large-scale
implementation of this technology was the One Million Cisterns Program (P1MC), which
promoted the construction of cisterns for domestic use with a capacity of 16 thousand
liters, with the aim of meeting the demand for a family for up to eight months of drought.
This work aims to evaluate the performance of these equipment in meeting user demand,
using performance indicators (reliability, efficiency, and resilience). The study area is the
Semiarid Paraibano, with a time horizon of 30 years (1993-2022). It was possible to
observe that the indicators (reliability and efficiency) were presented similarly for the
homogeneous rainfall regions of the studied region. As for the resilience indicator, it was
necessary to readapt it to the reality of the technology studied, adjusting the recovery time
to the reality of the equipment studied. Consequently, there was a need to recalculate the
reliability indicator for this new state. One can also observe regions that are prone to
increasing the capacity of reservoirs due to overflows, as well as increasing catchment
areas to increase the reliability of the equipment.
