Most of the odorous substances generated in public environment facilities are treated using a local exhaust ventilation system. This study assessed the leakage of odorous substances by measuring design criteria, collected air volume, and complex odor in the unit process of sewage treatment facilities. The closer the guideline/design operation airflow ratio of each odor source is to 1.0, the more identical the guideline:design:operation airflow. The average air volume ratio of the facilities under the study was 0.95~0.99 for the MBR process and 0.29~0.68 for the BNR process. As a result of comparing the types of wastewater treatment processes, the leakage of odorous substances was about 9.7 times higher in the BNR process (192,732 m3/min) than in the MBR process (19,838 m3/ min). In this study, it was found that the following two means are important for the proper collection and prevention of odorous substances. The first is the estimation of collection air volume with consideration to the characteristics of the odor source (temperature, odor generation condition, etc.). The second is the design and operation of the local exhaust ventilation system.

Abstract
1. 서 론
2. 연구방법
    2.1 연구대상
    2.2 연구방법
3. 연구결과
    3.1 MBR공정 vs BNR공정의 악취포집 풍량 비교
    3.2 악취물질 누출량 추정
    3.3 포집효율 평가
4. 결 론
References

• 오제범(대전대학교 환경공학과/한국환경공단 악취관리처) | Je-Beom Oh (Department of Environment Engineering, Daejeon University/Korea Environment Corporation Department of Odor Management) Corresponding author
• 조강희(한국환경공단 기후대기본부) | Kang-Hee Jo (Korea Environment Corporation HQ of Climate & Air Quality Management)
• 강동규(한국환경공단 악취관리처) | Dong-Gyoo Kang (Korea Environment Corporation Department of Odor Management)
• 손창영(한국환경공단 악취관리처) | Chang-Young Son (Korea Environment Corporation Department of Odor Management)
• 심동민(한국환경공단 악취관리처) | Dong-Min Sim (Korea Environment Corporation Department of Odor Management)
• 김자영(한국환경공단 악취관리처) | Ja-Young Kim (Korea Environment Corporation Department of Odor Management)