This paper aims to review the odor removal performance and operating parameters of pilot and full-scale chemical scrubbers, bioscrubbers, biofilters, and biotrickling filters for odor control in wastewater treatment plants. Based on the performance of full-scale facilities installed in wastewater treatment plants, empty-bed residence times were the shortest for bioscrubbers (7.5±2.5s), followed by chemical scrubbers (20±8.1s), biotrickling filters (22.2±26.2s), and biofilters (48±30s). The removal efficiencies of complex odors by biofilters, biotrickling filters, bioscrubbers, and chemical scrubbers were 97.7±1.9%, 87.7±15.6%, 89.0±9.0%, and 70.0%, respectively. The investment cost was the lowest for biofilters, followed by biotrickling filters, bioscrubbers, and chemical scrubbers. In addition, the operating costs of these deodorization technologies were in the following order: biofilters < bioscrubbers and biotrickling filters < chemical scrubbers. However, most studies on odor control for wastewater treatment processes have been conducted on a laboratory scale with model odors (single odorous compound or mixtures of 2-3 odorous compounds). Therefore, field research to develop deodorization technologies for wastewater treatment plants should be more actively conducted to accumulate data for the design and operation of full-scale deodorizing systems.

1. 서 론
2. 흡착법에 의한 하폐수 처리장 악취 저감
3. 세정법(약액세정법, 생물세정법)에 의한 하폐수 처리장 악취 저감 사례
4. 생물여과법에 의한 하폐수 처리장 악취저감 사례
5. 생물살수여과법에 의한 하폐수 처리장악취 관리 사례
6. 화학세정법, 생물세정법, 생물여과법 및생물살수여과법의 비교
7. 결 론
감사의 글
References

• 조경숙(이화여자대학교 환경공학과, 이화여자대학교 환경블라인드스팟연구센터) | Kyung-Suk Cho (Department of Environmental Science and Engineering, Ewha Womans University, Center of SEBIS (Strategic Solutions for Environmental Blindsponts in the Interest of Society), Ewha Womans University) Corresponding author