Avaliação do volume necessário de descarte de água de chuva escoada sobre coberturas de diferentes materiais
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Data
2011-06
Título da Revista
ISSN da Revista
Título de Volume
Editor
Ricardo Prado Abreu Reis
Resumo
Water scarceness has become a major problem worldwide, which is
evidencing to the need for studies of new methods and techniques of water
conservation, aiming to produce effective solutions to minimize this problem within
building environments. Among the possible water conservation technologies in
buildings, rainwater harvesting can be a powerful alternative. The objective of this
study is to evaluate the disposal of rainwater collected in three roofs made by
different types of materials such as: metal, asbestos cement and clay, located in the
area of the School of Civil Engineering at the Federal University of Goiás. After
monitoring the volume of discharge correlated with the evaluation of the quality of
rainwater collected in each type of roof, and with the rain water collected directly
from the atmosphere, the processes were evaluated based on the observed
parameters and on the criteria established by the NBR 15.527 (ABNT, 2007). It was
observed that the process of disposal of rain water is essential for obtaining water
with better quality in these systems. It was also noted that the disposal based on
time of rainfall was not sufficient to obtain rainwater with assured quality. Among
the evaluated roofs, the metal tile proved to produce the best water quality after
discarding the first 150L collected (corresponding to a 2 mm of rainfall over the
areas of contribution studied). Moreover, the volume of disposal corresponding to
the 2 mm of accumulated rainfall, as suggested by NBR 15.527, were not sufficient
to ensure that the rainwater collected can be used without risk to users and water
installations, which demands at least a simplified water treatment.
Descrição
Palavras-chave
Aproveitamento de água de chuva, Descarte de água de chuva, Sistemas prediais de água pluvial, First flush rainwater diverter, Ainwater use, Rainwater harvesting
Citação
ROCHA, Bárbara Cristina Castro de Melo; REIS, Ricardo Prado Abreu; ARAÚJO, José Vicente Granato de. Avaliação do volume necessário de descarte de água de chuva escoada sobre coberturas de diferentes materiais. Revista Eletrônica de Engenharia Civil, Goiânia, v. 1, n. 2, jan./jun. 2011. Disponível em: <https://www.revistas.ufg.br/reec/article/view/16707/10158>.