Rodziewicz, J.; Pesta, J.; Janczukowicz, W.; Mielcarek, A. The Influence of Pandemic Lockdowns on Municipal Wastewater Quality as a Consequence of Not Discharging Food Waste from Restaurants. Appl. Sci.2023, 13, 8875.
Rodziewicz, J.; Pesta, J.; Janczukowicz, W.; Mielcarek, A. The Influence of Pandemic Lockdowns on Municipal Wastewater Quality as a Consequence of Not Discharging Food Waste from Restaurants. Appl. Sci. 2023, 13, 8875.
Rodziewicz, J.; Pesta, J.; Janczukowicz, W.; Mielcarek, A. The Influence of Pandemic Lockdowns on Municipal Wastewater Quality as a Consequence of Not Discharging Food Waste from Restaurants. Appl. Sci.2023, 13, 8875.
Rodziewicz, J.; Pesta, J.; Janczukowicz, W.; Mielcarek, A. The Influence of Pandemic Lockdowns on Municipal Wastewater Quality as a Consequence of Not Discharging Food Waste from Restaurants. Appl. Sci. 2023, 13, 8875.
Abstract
The use of food waste disposers in gastronomical facilities influence the municipal wastewater composition. Ground food waste poses problems in the operation of the sewerage network and generates high electric energy consumption in wastewater treatment plants (WWTP). The study aimed to determine, for five towns with a PE of 4,000 to 220,000, the volumes of catering waste discharged to the WWTPs. The towns differed in the number of inhabitants, beds in hotel and catering places. The calculations were made based on data received from the operators of WWTP. The pollutant concentrations in 2019, were compared with data from the "pandemic" year - 2020. The loads of catering waste entering the sewerage system in 2019 ranged from 32.7 to 1062 tons. In town with the largest tourist base, the BOD value in 2020 accounted for 62.3% of 2019 value. In the largest town, the annual energy consumption for food waste treatment could be up to 2,539,770 kWh. If the waste was fermented, it could be obtained up to 1,376,650 m3 of methane. There is a strong need for implementing a collection system for food waste from catering facilities and its fermentation to produce methane, which can be used for energy purposes.
Environmental and Earth Sciences, Waste Management and Disposal
Copyright:
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