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pp.157-165
This study was conducted to analyze the characteristics of odorous components that have been generated from the downtown sewer system based on twenty-three survey items for complex odor and designated offensive odor. As a result of the research, the contribution rates for the causative materials of the odor indicated 73.5% of hydrogen sulfide, 26.0% of methyl mercaptan, 0.4% of dimethyl sulfide, and 0.1% of dimethyl disulfide. The occurrence for the odorous materials according to sampling site revealed data of which contribution rates showed 56.9% of hydrogen sulfide and 36.8% of methyl mercaptan from the combined sewer system in the business district; whereas the combined sewer system in the residential area showed 16.4% of dimethyl sulfide and 4.3% of dimethyl disulfide. The seasonal occurrence rate of the odor materials was observed higher in summer and lower in winter And, the combined sewer system in the business district recorded the highest concentration of 4.61 ppm of hydrogen sulfide among the sampling site. An hourly occurrence rate for the odor materials consistently showed the greatest increase between 11:00 and 14:00 at each location and showed a decreasing tendency afterward.
1. 서 론
2. 연구 방법
2.1 측정지점 선정 및 시료채취
2.2 분석 방법
3. 연구결과 및 고찰
3.1 하수관거의 지점별 악취물질의 특성 및 악취 기여도
3.2 복합악취와 지정악취 물질의 상관관계
3.3 성분별 악취물질 발생 경향 및 악취 기여도
3.4 계절별 악취 물질의 발생 경향
3.5 시간대별 악취 물질 발생경향
4. 결 론
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