Environmental Engineering Research

  • 제17권4호
  • /
  • Pages.211-216
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  • 2012
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  • 1226-1025(pISSN)
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  • 2005-968X(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
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Assessment of Airborne Microorganisms in a Swine Wastewater Treatment Plant

  • Kim, Ki-Youn (Department of Industrial Health, Catholic University of Pusan) ;
  • Ko, Han-Jong (Division of Livestock Policy, Jeju Special Self-Governing Province) ;
  • Kim, Daekeun (Department of Environmental Engineering, Seoul National University of Science and Technology)
  • 투고 : 2012.07.23
  • 심사 : 2012.11.28
  • 발행 : 2012.09.30
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초록

Quantification of the airborne microorganisms (bacteria and fungi) at a swine wastewater treatment plant was performed. Microbial samples were collected at three different phases of the treatment process over a 1-yr period. Cultivation methods based on the viable counts of mesophilic heterotrophic bacteria and fungi were performed. The concentrations of airborne bacteria ranged up to about $5{\times}10^3$ colony-forming unit (CFU)/$m^3$, and those of airborne fungi ranged up to about $9{\times}10^2CFU/m^3$. The primary treatment (e.g., screen, grit removal, and primary sedimentation) was found to be the major source of airborne microorganisms at the site studied, and higher levels of airborne bacteria and fungi were observed in summer. High levels of the respirable bioaerosol (0.65 to $4.7{\mu}m$ in size) were detected in the aeration phase. Among the environmental factors studied, temperature was strongly associated with fungal aerosol generation (with a Spearman correlation coefficient of 0.90 and p-value <0.01). Occupational biorisks are discussed based on the observed field data.

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피인용 문헌

  1. Characteristics and formation mechanism of intestinal bacteria particles emitted from aerated wastewater treatment tanks vol.163, pp.None, 2012, https://doi.org/10.1016/j.watres.2019.114862
  2. Bioaerosol Emissions during Organic Waste Treatment for Biopolymer Production: A Case Study vol.12, pp.8, 2012, https://doi.org/10.3390/atmos12081069