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Optimizing Treatment of Cesspool Wastewater at an Activated Sludge Plant

Author

Listed:
  • Piotr Bugajski

    (Department of Sanitary Engineering and Water Management, Faculty of Environmental Engineering and Land Surveying, University of Agriculture in Krakow, Al. Mickiewicza 21, 30-059 Kraków, Poland)

  • Agnieszka Operacz

    (Department of Sanitary Engineering and Water Management, Faculty of Environmental Engineering and Land Surveying, University of Agriculture in Krakow, Al. Mickiewicza 21, 30-059 Kraków, Poland)

  • Dariusz Młyński

    (Department of Sanitary Engineering and Water Management, Faculty of Environmental Engineering and Land Surveying, University of Agriculture in Krakow, Al. Mickiewicza 21, 30-059 Kraków, Poland)

  • Andrzej Wałęga

    (Department of Sanitary Engineering and Water Management, Faculty of Environmental Engineering and Land Surveying, University of Agriculture in Krakow, Al. Mickiewicza 21, 30-059 Kraków, Poland)

  • Karolina Kurek

    (Department of Sanitary Engineering and Water Management, Faculty of Environmental Engineering and Land Surveying, University of Agriculture in Krakow, Al. Mickiewicza 21, 30-059 Kraków, Poland)

Abstract

The purpose of this work was to determine the optimal percentage of wastewater from cesspool in the mixture of wastes subjected to treatment processes, which will not have a negative impact on the functioning of the collective treatment plant. The study was carried out over a period of two years, with 48 samples of wastewater flowing in from the sewage network and delivered with the slurry tanker collected and subjected to physical and chemical analysis. The analysis included: Biochemical Oxygen Demand (BOD 5 ), Chemical Oxygen Demand (COD), and Total Nitrogen (TN). In addition, the study defined the daily balance of the amount of inflowing and transported wastewater. Based on the analysis carried out, it was found that the unit loads of BOD 5 , COD and TN in the mixture of wastewater subjected to the treatment process will be at the level of loads assumed in the project, when the share of supplied wastewater, i.e., from cesspool, will be at the level of 5% of the total amount of wastewater. Considering that in the analysed period the total average daily amount of wastewater subjected to the treatment process was 253.5 m 3 ·d −1 , the optimal amount of wastewater delivered should be 12.7 m 3 in each day of the week.

Suggested Citation

  • Piotr Bugajski & Agnieszka Operacz & Dariusz Młyński & Andrzej Wałęga & Karolina Kurek, 2020. "Optimizing Treatment of Cesspool Wastewater at an Activated Sludge Plant," Sustainability, MDPI, vol. 12(23), pages 1-15, December.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:23:p:10196-:d:457831
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    Citations

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    Cited by:

    1. Xiaohui Sun & Junpei He & Wei Lv & Silin Wu & Yongshen Peng & Yuansheng Peng & Jianbo Fei & Zezhou Wu, 2023. "Characteristics and Resource Recovery Strategies of Solid Waste in Sewerage Systems," Sustainability, MDPI, vol. 15(2), pages 1-15, January.
    2. Agnieszka Operacz & Krzysztof Jóźwiakowski & Joanna Rodziewicz & Wojciech Janczukowicz & Piotr Bugajski, 2023. "Impact of Climate Conditions on Pollutant Concentrations in the Effluent from a One-Stage Constructed Wetland: A Case Study," Sustainability, MDPI, vol. 15(17), pages 1-16, September.

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