Odor from sewage treatment plants have the potential to cause significant annoyance and to impact the amenity. In this study, odor emission characteristics at unit process of 48 sewage treatment facilities in 39 plants were evaluated using composite odor concentration and hydrogen sulfide (H2S) concentration. The values of composite odor concentration (geometry mean) and H2S concentration (median) for sludge treatment processes are higher than those for the other treatment processes. The composite odor concentration and H2S concentration are distributed over a wide area in each process. Composite odor concentration (dilution ratio) was found to have the significant correlation with H2S concentration (p=0.000<0.05). The H2S concentration accounted for 67.1% of composite odor concentration.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 조사대상 시설
  2.2. 시료채취 및 분석 방법
 3. 결과 및 고찰
  3.1. 복합악취 농도를 이용한 공정별 악취발생 특성
  3.2. 황화수소 농도의 공정별 발생 특성
  3.3. 복합악취와 황화수소 농도와의 관계
 4. 결 론
 참 고 문 헌

• 고병철(한국환경공단 악취관리센터) | Byung-Churl Ko (Odor Management Center, Korea Environment Corporation)
• 이종국(한국환경공단 악취관리센터) | Jong-Kuk Lee (Odor Management Center, Korea Environment Corporation)
• 이윤수(한국환경공단 악취관리센터) | Yoon-Su Lee (Odor Management Center, Korea Environment Corporation)
• 이민규(부경대학교 화학공학과) | Min-Gyu Lee (Department of Chemical Engineering, Pukyong National University)
• 감상규(제주대학교 환경공학과) | Sang-Kyu Kam (Department of Environmental Engineering, Jeju National University) Corresponding author