이단 병합 소화조에서 발생하는 악취유발 화합물에 관한 연구
Study on Odorants from Two-Phase Anaerobic Digestion System
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초록
In this study, odorous gases from acid-generating reactor and methane-generating reactor of a bench-scale two-phase anaerobic co-digester system for food waste and swine slurry were analyzed, and contribution of each gas to overall odor sensation was evaluated by calculating the odor index. For the feed, sulfur compounds including dimethyldisulfide and propyl mercaptan were found major contributors. On the other hand, indol,skatol, and cresol were found major odor-causing compounds for digested material. Since these three compounds have extremely low odor thresholds, the overall odor index for the effluent of the digesting system was higher than that of the influent, indicating digested material could be more odorous.
Abstract
In this study, odorous gases from acid-generating reactor and methane-generating reactor of a bench-scale two-phase anaerobic co-digester system for food waste and swine slurry were analyzed, and contribution of each gas to overall odor sensation was evaluated by calculating the odor index. For the feed, sulfur compounds including dimethyldisulfide and propyl mercaptan were found major contributors. On the other hand, indol,skatol, and cresol were found major odor-causing compounds for digested material. Since these three compounds have extremely low odor thresholds, the overall odor index for the effluent of the digesting system was higher than that of the influent, indicating digested material could be more odorous.
참고문헌 (7)
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