Analysis of water consumption in households with different supply systems
DOI:
https://doi.org/10.46421/entac.v20i1.6040Keywords:
Alternative supply, Statistical analysis, Residential consumption, Saving drinking wateAbstract
The use of alternative supply sources in buildings is a technological action to reduce water consumption from the urban water utility. This work aimed to analyze water consumption in households regarding the presence of an alternative water supply system, in order to investigate its influence on residential water consumption. Water consumption data from 34 homes in the city of Joinville, Santa Catarina, were analyzed. In this sample, 17 households do not have an alternative water supply system and in 17 households there are alternative sources, as follows: 11 with a rainwater harvesting system, 1 with a water reuse system and a well, 1 with rainwater harvesting and reuse systems and 4 with a well. Statistical analyzes such as descriptive statistics, boxplot graphs, hypothesis testing and linear regression were used. The results showed that the average water consumption (from the Water Utility) in households with an alternative supply system is 28,67% lower than in households that do not have such a system. The result of the hypothesis test proved that the reduction in water consumption in households with an alternative system is significant.
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