832
C. Faé et al.
be paid in 24.04 months. Taking into account the benefit generated by the other
system at that time, an economy of R$ 2,02297 ($ 640.48) would have occurred,
and from that moment the economy of the two systems could be added to reduce the
rest of the investment. In this case, with a total savings of R$ 112.85 ($ 35.73), per
month, the remaining R$ 3,177.03 ($ 1,005.87), has a return period of 28.15 months
or 2.34 years. It is estimated, therefore, a total return period of the two systems of
52.19 months or 4.35 years.
6 Conclusions
The study sought to show the feasibility of installing a system for collecting and
using rainwater drained from roofs and water generated by air conditioning devices,
together with the characterization of the water quality. Samples were collected
between 2016 and 2017 for water volume measurements and chemical analysis for
water quality characterization. IDF equation for Vitória city was applied to evaluate the rainfall intensity and to determine the project discharge. This also allow
the evaluation of the raised demand for the use of this volume collected around the
Laboratory.
The air conditioners studied generate a total of 289 L per day, which represents
5787 L in a month, while the estimated rainwater flow rate on the catchment surface is
102.70 L per minute. The rainfall water and that generated by air conditioners were
characterized by a good quality, and the parameters analyzed were in accordance
with the National Technical Standard of water quality.
The sustainable focusing lightning on computing all air conditioners apparatus
installed and operating in the Federal Institute of Espírito Santo—Campus Vitória,
and the considerable area of catching of rainfall which can fill, not only, the demand
for cleaning and garden irrigation, but also discharges of sanitary vessels further
reducing the consumption of drinking water, have an exciting demonstration of how
some simple actions can reinforce sustainable actions possibilities at different scales.
The projected funding system has an expected period of investment return of
52.19 months or 4.35 years. It is worth mentioning that this work is the first stage
of more in-depth studies, aiming at the implantation of permanent reservoirs at the
Federal Institute of Espírito Santo—Campus Vitória, not only to reduce the consumption of drinking water, but also to foster thought demonstrating the possibility
of capturing, storing and using alternative sources.
In this sense, it is worth mentioning that several employees and students praised the
implementation of the Haier appliance collection system, since there was no previous
study on the campus about the water expelled by the appliances and contributed with
ideas and suggestions on the expansion of the study in the future.
Therefore, this is a study with great applicability for the future of the Institution,
whose thinking must be focused on the adoption of sustainable policies and cost
reduction, so that it is feasible to use alternative sources of water for less noble
demands.
C. Faé et al.
be paid in 24.04 months. Taking into account the benefit generated by the other
system at that time, an economy of R$ 2,02297 ($ 640.48) would have occurred,
and from that moment the economy of the two systems could be added to reduce the
rest of the investment. In this case, with a total savings of R$ 112.85 ($ 35.73), per
month, the remaining R$ 3,177.03 ($ 1,005.87), has a return period of 28.15 months
or 2.34 years. It is estimated, therefore, a total return period of the two systems of
52.19 months or 4.35 years.
6 Conclusions
The study sought to show the feasibility of installing a system for collecting and
using rainwater drained from roofs and water generated by air conditioning devices,
together with the characterization of the water quality. Samples were collected
between 2016 and 2017 for water volume measurements and chemical analysis for
water quality characterization. IDF equation for Vitória city was applied to evaluate the rainfall intensity and to determine the project discharge. This also allow
the evaluation of the raised demand for the use of this volume collected around the
Laboratory.
The air conditioners studied generate a total of 289 L per day, which represents
5787 L in a month, while the estimated rainwater flow rate on the catchment surface is
102.70 L per minute. The rainfall water and that generated by air conditioners were
characterized by a good quality, and the parameters analyzed were in accordance
with the National Technical Standard of water quality.
The sustainable focusing lightning on computing all air conditioners apparatus
installed and operating in the Federal Institute of Espírito Santo—Campus Vitória,
and the considerable area of catching of rainfall which can fill, not only, the demand
for cleaning and garden irrigation, but also discharges of sanitary vessels further
reducing the consumption of drinking water, have an exciting demonstration of how
some simple actions can reinforce sustainable actions possibilities at different scales.
The projected funding system has an expected period of investment return of
52.19 months or 4.35 years. It is worth mentioning that this work is the first stage
of more in-depth studies, aiming at the implantation of permanent reservoirs at the
Federal Institute of Espírito Santo—Campus Vitória, not only to reduce the consumption of drinking water, but also to foster thought demonstrating the possibility
of capturing, storing and using alternative sources.
In this sense, it is worth mentioning that several employees and students praised the
implementation of the Haier appliance collection system, since there was no previous
study on the campus about the water expelled by the appliances and contributed with
ideas and suggestions on the expansion of the study in the future.
Therefore, this is a study with great applicability for the future of the Institution,
whose thinking must be focused on the adoption of sustainable policies and cost
reduction, so that it is feasible to use alternative sources of water for less noble
demands.