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ANALYSIS OF THE ELECTRICITY CONSUMPTION IN SMALL MUNICIPAL WASTEWATER TREATMENT PLANTS IN SOUTHWESTERN POLAND
Abstract
Waste Water Treatment Plant (WWTP) belong to the so-called -critical infrastructure-, which are so essential that their continued operation is required to ensure the security of a people. Energy is the most important operating utilities of WWTP. The specific electric energy consumption of WWTP depending on many factors including the inflow quality, WWTP-s scale, the technology used and climate. High energy consumption indirectly produces ecological damage, accelerates the energy crisis, and increases carbon emissions. The article will present data on analysis electricity consumption and carbon footprint at a small wastewater treatment plant in southern Poland. Electricity consumption of the analyzed wastewater treatment plants in 2019-2021 ranged from 221 714 to 248 824 kWh/year, with an average value of electricity consumption rate per m3 of wastewater: 1.15 kWh/m3. Rising amount of pollutants conducted into the treatment plant results in an increased energy demand. However, this correlation does not take a linear character.
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