Use of condensed water from air conditioning systems
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2018
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Facing the growing demand for water, discussions on environmental sustainability and conservation of
this resource have become increasingly important. Among
the possibilities for water conservation, air conditioning
systems have potential applicability because, during their
operation, water is generated via the condensation of air
humidity, which is normally discarded. Thus, the objective of this work was to evaluate the water released by
air conditioning equipment (condensed water) installed in
the Laboratory of Water Analysis (LAnA) qualitatively and
quantitatively, in order to verify its potential for use in the
laboratory itself. For this, the quality of the water produced
by three air conditioners was compared water quality parameters found in the literature, as well as with water produced by a distiller and an ultra-purifier, both used in the
LAnA. Water quality was evaluated using physicochemical parameters (i.e. pH, electrical conductivity, resistivity,
alkalinity, turbidity, apparent color and hardness) and microbiological parameters (i.e. total coliforms, Escherichia
coli and heterotrophic bacteria). The average water flow
produced by the three monitored air conditioners was 3.08
L/hour, which is higher than the daily consumption by the
LAnA, indicating that its use would be quantitatively propitious. The physicochemical and microbiological analyses found that, condensed water can be used in the routine
activities of LAnA. However, for its use as reagent-grade
water, a prior treatment would be necessary, mainly due
to the presence of heterotrophic bacteria
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Reagent-grade water, Air conditioning, Water use, Laboratory
Citação
SCALIZE, Paulo Sergio et al. Use of condensed water from air conditioning systems. Open Engineering, [s. l.], v. 8, n. 1, p. 284–292, 2018. DOI: 10.1515/eng-2018-0031. Disponível em: https://www.degruyter.com/document/doi/10.1515/eng-2018-0031/html?srsltid=AfmBOop9625nT781Rr3JIn6sm0ABT0ypDpYCYyeNhWVvnY-J6UjVOjiG. Acesso em: 30 jsn. 2025.