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The Biological Drying of Municipal Waste in an Industrial Reactor—A Case Study

Author

Listed:
  • Jolanta Latosińska

    (Faculty of Environmental, Geomatic and Energy Engineering, Kielce University of Technology, Al. Tysiąclecia PP 7, 25-314 Kielce, Poland)

  • Maria Żygadło

    (Faculty of Environmental, Geomatic and Energy Engineering, Kielce University of Technology, Al. Tysiąclecia PP 7, 25-314 Kielce, Poland)

  • Marlena Dębicka

    (Faculty of Environmental, Geomatic and Energy Engineering, Kielce University of Technology, Al. Tysiąclecia PP 7, 25-314 Kielce, Poland)

Abstract

One of the methods of municipal solid waste (MSW) treatment is biodrying. The literature describes mainly the results obtained in a laboratory- and a pilot-scale reactor. The manuscript presents the results of MSW treatment in a full-scale bio-drying reactor (150 m 3 ). The reactor is operated in one of the Polish installations specializing in mechanical-biological treatment (MBT). During the 14 day period of biodrying in the reactor, the parameters of MSW such as the moisture, temperature, loss on ignition (LOI), and net heating value (NHV) were examined. The temperature of the air in the reactor was also examined. The research also included changes in the above-mentioned parameters of MSW located in three parts of the reactor: the front, middle, and back. The test results showed that the moisture content of the waste decreased from the initial level of 55% to the level of 30%. This was accompanied by an increase in the NHV from 6.3 MJ kg −1 to 9.6 MJ kg −1 . At the same time, the LOI decreased from 68% d.m. to 45% d.m. The LOI decrease is not favorable from the point of view of using MSW as refuse-derived fuel (RDF), as was expected in the final usage stage. The results have application value as the plant operator, having at their disposal the controlling of the reactor’s ventilation and the temperature inside the reactor, should select the speed of the moisture removal from MSW at such a level as to minimize the LOI decrease.

Suggested Citation

  • Jolanta Latosińska & Maria Żygadło & Marlena Dębicka, 2022. "The Biological Drying of Municipal Waste in an Industrial Reactor—A Case Study," Energies, MDPI, vol. 15(3), pages 1-9, January.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:3:p:1039-:d:738644
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    References listed on IDEAS

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    1. Sławomir Kasiński & Marcin Dębowski & Maria Olkowska & Marcin Rudnicki, 2021. "Analysis of the Long-Term Mass Balance and Efficiency of Waste Recovery in a Municipal Waste Biodrying Plant," Energies, MDPI, vol. 14(22), pages 1-17, November.
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