Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Experimental Study on Hydrogen Sulfide Abatement in Sewage Odor Using Microbial Deodorants on the Market

시판용 미생물탈취제를 이용한 하수 악취 내 황화수소 저감에 관한 실험적 연구

  • Park, Sang Jin (Department of Railroad Civil System Engineering/Odor&VOC Research Center, Woosong University) ;
  • Kwon, Soo Youl (Department of Environmental Health, Korea National Open University)
  • 박상진 (우송대학교 철도건설시스템학부/악취VOC연구센터) ;
  • 권수열 (한국방송통신대학교 보건환경학과)
  • Received : 2020.02.24
  • Accepted : 2020.03.16
  • Published : 2020.04.30
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Abstract

Objectives: This study was conducted to estimate a technology to reduce hydrogen sulfide (H2S) in sewage odor using microbial deodorant. Methods: After injecting five commercially available microbial deodorants into fresh sewage, the concentration of hydrogen sulfide over time was measured using the headspace method. H2S concentration in odor samples was measured using gas chromatograph/FPD. Calculated odor concentration and calculated odor intensity by H2S concentration remaining after treatment with microbial deodorant were evaluated theoretically. Results: The rate of H2S abatement by microbial deodorant differed depending on the experimental conditions and the type of deodorant, but it was found to range from 63 to 82%. Especially, two deodorants showed high H2S reduction rates of over 80% on average. However, based on the best deodorant, the theoretically calculated odor concentration by H2S after microbial deodorant treatment was 4,400 OUk, and the theoretical odor intensity was also rated at 4 degrees or higher. Conclusions: In conclusion, microbial deodorant is considered to have a relatively high effect on reducing H2S in sewage odor. However, even after treatment with microbial deodorant, calculated odor concentration and calculated odor intensity were relatively high. This is thought to be caused by other odorous substances besides H2S.

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