Two sewage treatment facilities were selected to identify odor emission characteristics, focusing on volatile organic compounds (VOCs) and sulfur compounds. The complex odor, 5 kinds of sulfur compounds and 23 kinds of VOCs were analyzed from gas and sludge storages. Hydrogen sulfide was detected in the highest concentration and had the highest odor quotient among the odorous compounds monitored in this study, demonstrating that the contribution of hydrogen sulfide to the complex odor reached up to 90%. For VOCs, the overall contribution to the complex odor was not critical but VOCs can sufficiently trigger an odorous sensation because the sum of the odor quotient reached up to 2.89.

Abstract
 1. 서 론
 2. 실험방법
  2.1 채취현장
  2.2 표준물질
  2.3 시료채취방법
  2.4 분석방법
  2.5 복합악취
  2.6 악취기여도
 3. 결과 및 고찰
  3.1 복합악취
  3.2 황화합물
  3.3 휘발성 유기화합물(VOCs)
 4. 결 론
 References

• 최예림(서울과학기술대학교 환경공학과) | Yelim Choi (Department of Environmental Engineering, Seoul National University of Science and Technology)
• 이성우(서울과학기술대학교 에너지환경공학과) | Seongwoo Lee (Department of Energy and Environmental Engineering, Seoul National University of Science and Technology)
• 김대근(서울과학기술대학교 환경공학과) | Daekeun Kim (Department of Environmental Engineering, Seoul National University of Science and Technology) Corresponding author