| 학회 |
한국화학공학회 |
| 학술대회 |
2009년 봄 (04/23 ~ 04/24, 광주 김대중컨벤션센터) |
| 권호 |
15권 1호, p.143 |
| 발표분야 |
공정시스템 |
| 제목 |
수력학적 모델을 통한 MBR의 fouling현상과 에너지를 고려한 운전최적화 |
| 초록 |
Membrane fouling is a main drawback in MBR systems. The successful design and operation of MBR systems requires a tool to quantify particle deposition and energy consumption. An integrated mechanistic hydrodynamic model was developed to achieve this objective. The mechanistic model can predict the effects of sludge particle size (a), dry solid content (DS), cross flow velocity (U),membrane tube dimensions (D and L) and temperature (T) on particle deposition and energy consumption in a (side stream) tubular membrane module. Simulations were performed by varying the above 5 variables, and sensitivity analyses were performed to classify the relative importance of the above 5 variables. The results showed that hydrodynamic optimisation of a tubular ultrafiltration membrane module showed that a low cross flow velocity maximized the objective function, which suggests that operating at a low cross flow velocity, thus allowing a certain degree of membrane fouling, is more optimal for the long-term operation of side-stream MBRs. A low dry solids content was beneficial from a hydrodynamic viewpoint, but the optimal value should be considered together with the operation of the biological stage. |
| 저자 |
유창규1, Tao Jiang2, 김민한3, 김용수1
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| 소속 |
1경희대, 2Environ Corp., 3China |
| 키워드 |
bioreactor; fouling; hydrodynamics; modelling; optimization
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| E-Mail |
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| 원문파일 |
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