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DOI : , Vol.21, No.1, 23 ~ 30, 2013
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| Title |
| Comparative Analysis of Operation Status of Waste Water Processing Facilities in Korea Compared to Design Parameters |
| 김진식 Jin Sik Kim , 민상윤 Sang Yun Min , 이승필 Seung Pil Lee , 박종운 Jong Un Park , 김만수 Man Soo Kim |
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| Abstract |
| For waste water processing facilities distributed throughout Korea, design F/M ratio, actual operation F/M ratio, design SRT and actual SRT by processing capacity and processing method were compared to review a design application parameter and to draw an operation parameter value right for the environment in Korea. For design F/M ratio by processing capacity and SRT, 0.1~0.3kg BOD/kg MLSS·day and 10~30 day were applied regardless of capacity, but operation F/M ratio of actual waste water processing facility was 0.1 ~0.16kg BOD/kg MLSS·day, and average SRT was in the range of 15~25 days. And, in the case of design F/M ratio by a processing method, SBR system was being designed and operated lower than media or active sludge method. It is estimated that as SBR method is operated in extended aeration, which is operated by high LMSS, unlike the other method. When design and actual SRT are compared, in the case of media and active sludge type, wide range of 9.4~24.6 days was applied in design, but facilities were actually operated in 14~19 days. And, in the case of SBR system, while design SRT was long as 25.1~40.0days, operation SRT in SBR method in Korea was in average 32.1 days. Therefore, it is considered that this study can be used as an operation index of waste water operation facility based on the common operation standard of engineering methods applied in Korea, and as main operation parameter in development of logic to stabilize the process. |
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| Key Words |
| F, M ratio, SRT, Operation parameter, Stabilization of process |
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