Nexo água-energia: um estudo de caso na estação de tratamento de esgoto de Campo Mourão, Paraná

Abstract

With the constant growth in the consumption of water and energy resources, there is a need to expand access to them and, at the same time, propose alternatives that minimize the environmental impacts caused by their use. For this to happen, it is essential to recognize the interconnections between these resources, called nexus. The water-energy nexus is becoming manifest in the present moment, where climate change, consumption patterns, and population growth have put pressure on the available natural resources. Thus, studies involving the waterenergy nexus become important, whether in public or private initiatives and projects, in order to increase the synergy between the management and use of water and energy, reducing the impacts caused mutually and ensuring the sustainable use of these resources, since the planet is going through a crisis associated with climate change, threatening the health of ecosystems, and that of humanity. Given this scenario, this work aimed to evaluate the water-energy nexus of the Sewage Treatment Plant (STP) of Campo Mourão, Paraná. The methodology was based on exploratory research, in which a survey of secondary data on water and electricity demand of the Sewage Treatment Plant (STP) of the municipality of Campo Mourão, Paraná State, was carried out. Statistical analysis was performed using Pearson's correlation test to identify the degree of dependence between the variables water and energy. The results indicated that there is a strong correlation between the variables, with a Pearson coefficient value of 0.70. It is therefore concluded that the Campo Mourão WWTP, Paraná, was evaluated with a strong nexus between the variables water and energy.