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Article

Bioaerosol Emission from Biofilters: Impact of Bed Material Type and Waste Gas Origin

Faculty of Building Services, Hydro and Environmental Engineering, Warsaw University of Technology, 00-653 Warsaw, Poland
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Author to whom correspondence should be addressed.
Academic Editor: Salvatore Romano
Atmosphere 2021, 12(12), 1574; https://doi.org/10.3390/atmos12121574
Received: 29 September 2021 / Revised: 25 October 2021 / Accepted: 23 November 2021 / Published: 27 November 2021
(This article belongs to the Special Issue Bioaerosols: Composition, Meteorological Impact, and Transport)
Three semi-technical scale biofilters were applied to treat waste gases at different industrial sites in Poland: a mechanical–biological treatment plant of municipal solid waste, a wastewater treatment plant and a food industry plant. Two types of materials were used as beds in the biofilters: stumpwood chips and pine bark, and stumpwood chips, pine bark and compost from green waste. Both bed materials supported the microbial growth and high numbers (106–108 cfu/g dry mass (DM)) of culturable bacteria, and fungi in beds were observed. There was no correlation between the number of microorganisms (cfu/g DM) and the respiratory activity in the biofilter beds. However, microbial respiration activity corresponded with microbial abundance expressed as microbial equivalents (ME), which was calculated based on adenosine triphosphate (ATP) determination. The biofilters either reduced or increased bioaerosol emissions from industrial plants, depending on the microbial content in the waste gases. A high microbial content in the waste gases made the effect of microbial emission from the biofilter bed negligible. The type of biofilter bed and number of microorganisms in the bed also influenced the final bioaerosol emission, but these factors were relevant for biofilters that treated waste gases with low microbial concentrations. View Full-Text
Keywords: waste gas treatment; biofilter bed; microbial respiratory activity; bioaerosol emission waste gas treatment; biofilter bed; microbial respiratory activity; bioaerosol emission
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MDPI and ACS Style

Affek, K.; Tabernacka, A.; Załęska-Radziwiłł, M.; Doskocz, N.; Muszyński, A. Bioaerosol Emission from Biofilters: Impact of Bed Material Type and Waste Gas Origin. Atmosphere 2021, 12, 1574. https://doi.org/10.3390/atmos12121574

AMA Style

Affek K, Tabernacka A, Załęska-Radziwiłł M, Doskocz N, Muszyński A. Bioaerosol Emission from Biofilters: Impact of Bed Material Type and Waste Gas Origin. Atmosphere. 2021; 12(12):1574. https://doi.org/10.3390/atmos12121574

Chicago/Turabian Style

Affek, Katarzyna, Agnieszka Tabernacka, Monika Załęska-Radziwiłł, Nina Doskocz, and Adam Muszyński. 2021. "Bioaerosol Emission from Biofilters: Impact of Bed Material Type and Waste Gas Origin" Atmosphere 12, no. 12: 1574. https://doi.org/10.3390/atmos12121574

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