<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The Covid-19 pandemia increased the attention of the world community to air biocontamination. Sewage treatment plants (STPs) generate a bioaerosol during different technological operations. Research aimed to estimate the range of bioaerosol emission from different technological objects of 5 small STPs. Such knowledge is very important for risk assessment, monitoring programs and pollution limitation. The sedimentation method was used for the detection of mesophiles, psychrophiles, <italic>Escherichia coli</italic>, pigmented bacteria, <italic>Streptococcus faecalis</italic>, <italic>Pseudomonas fluorescens</italic>, and mold fungi. The highest level of psychrophiles and mold fungi (> 1000 cfu/m3) was detected in points located near activated sludge chambers, sludge thickening tanks, and secondary clarifiers. The mesophiles (>500 cfu/m3) and <italic>E. coli</italic> aren’t a normal component of air microflora, but were detected in all measurement points, especially near a pomp station (inflow), grit, activated sludge, sludge thickening chambers. At the points located at the leeward, the number of microorganisms was higher than in the windward. The research results indicate the necessity of constant monitoring of the STP impact on the air quality.</p>
</abstract>

The Covid-19 pandemia increased the attention of the world community to air biocontamination. Sewage treatment plants (STPs) generate a bioaerosol during different technological operations. Research aimed to estimate the range of bioaerosol emission from different technological objects of 5 small STPs. Such knowledge is very important for risk assessment, monitoring programs and pollution limitation. The sedimentation method was used for the detection of mesophiles, psychrophiles, Escherichia coli, pigmented bacteria, Streptococcus faecalis, Pseudomonas fluorescens, and mold fungi. The highest level of psychrophiles and mold fungi (> 1000 cfu/m3) was detected in points located near activated sludge chambers, sludge thickening tanks, and secondary clarifiers. The mesophiles (>500 cfu/m3) and E. coli aren’t a normal component of air microflora, but were detected in all measurement points, especially near a pomp station (inflow), grit, activated sludge, sludge thickening chambers. At the points located at the leeward, the number of microorganisms was higher than in the windward. The research results indicate the necessity of constant monitoring of the STP impact on the air quality.

Assessment of Possibilities of Spreading of Bioaerosol from Different Technological Objects in Small Sewage Treatment Plants

Architecture, Civil Engineering, Environment

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

The Covid-19 pandemia increased the attention of the world community to air biocontamination. Sewage treatment plants (STPs) generate a bioaerosol during...

Assessment of Possibilities of Spreading of Bioaerosol from Different Technological Objects in Small Sewage Treatment Plants

Published Online: Aug 09, 2022

Page range: 177 - 186

Received: Mar 28, 2022

Accepted: May 09, 2022

DOI: https://doi.org/10.2478/acee-2022-0025

Keywords
Bacteria, bioaerosol, Mesophiles, Microbiological air quality, Mold fungi, Psychrophiles, Sewage treatment plant,

© 2022 Ewa ZABŁOCKA-GODLEWSKA et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Assessment of Possibilities of Spreading of Bioaerosol from Different Technological Objects in Small Sewage Treatment Plants

Published Online: Aug 09, 2022

Page range: 177 - 186

Received: Mar 28, 2022

Accepted: May 09, 2022

DOI: https://doi.org/10.2478/acee-2022-0025

KeywordsBacteria, bioaerosol, Mesophiles, Microbiological air quality, Mold fungi, Psychrophiles, Sewage treatment plant,

© 2022 Ewa ZABŁOCKA-GODLEWSKA et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
Bacteria, bioaerosol, Mesophiles, Microbiological air quality, Mold fungi, Psychrophiles, Sewage treatment plant,