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Analysis of the Possibility of Applying Biochars from Biowaste as Adsorbents to Eliminate Odors from Wastewater Treatment

Author

Listed:
  • Jacek Piekarski

    (Faculty of Civil Engineering, Environmental and Geodetic Sciences, Koszalin University of Technology, 75-453 Koszalin, Poland)

  • Katarzyna Ignatowicz

    (Faculty of Civil Engineering and Environmental Sciences, Białystok University of Technology, 15-351 Białystok, Poland)

  • Tomasz Dąbrowski

    (Faculty of Civil Engineering, Environmental and Geodetic Sciences, Koszalin University of Technology, 75-453 Koszalin, Poland)

  • Bartosz Dąbrowski

    (Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, Pl. Politechniki 1, 00-661 Warsaw, Poland)

Abstract

Due to its nitrogen, phosphorus, and magnesium content, sewage sludge is used, among other things, to grow plants for energy purposes or to intensify biogas production. These processes are always accompanied by odor emissions, which are treated as pollution according to European legislation and are subject to legal regulations in many countries. Therefore, this publication presents the results of a study on the removal of odor from sewage sludge by adsorption on biochars produced from selected biowaste. Beekeeping waste (grain) and coffee brewing residues (spent coffee grounds) were selected for the study. Both materials were pyrolyzed to produce biochar which was applied for adsorption of odors from sewage sludge. Commercial Organosorb 200-1 Wi activated carbon was used as a comparison material. The odors were taken from dried sewage sludge from a municipal wastewater treatment plant. The obtained biochars are suitable for odor adsorption and can be an alternative to commercial adsorbents. The biochar from beekeeping waste showed the highest efficiency, allowing 100% odor removal. Slightly worse results were obtained for biochar from spent coffee grounds.

Suggested Citation

  • Jacek Piekarski & Katarzyna Ignatowicz & Tomasz Dąbrowski & Bartosz Dąbrowski, 2024. "Analysis of the Possibility of Applying Biochars from Biowaste as Adsorbents to Eliminate Odors from Wastewater Treatment," Energies, MDPI, vol. 17(16), pages 1-15, August.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:16:p:4129-:d:1459322
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