Jet 폭기 시스템의 순환유량에 따른 산소전달 특성 및 순산소 적용성 검토 (Oxygen Transfer Characteristics & Pure Oxygen Application Study on Circulation Flow Rate of the JLB (Jet Loop Bioreactor))

서지정보

· 발행기관 : 한국물환경학회
· 수록지 정보 : 한국물환경학회지 / 25권 / 6호 / 896 ~ 901페이지
· 저자명 : 박노백, 송용효, 박준규, 전항배

초록

In this study, in order to apply the air and pure oxygen in the Jet Loop Reactor (JLB) in which the oxygen transfer rate is high, differentiate the operation mode according to each air flowrate and liquid flowrate and investigate the oxygen transfer characteristic, an experiment was carried out. The oxygen concentration with the air flowrate (Qg) and liquid flowrate (QL) was identical but the oxygen transfer coefficient (KL·a) is linear depending on degree of two factors. The width of an increase is small in 0.1 min-1 when the air flowrate is 0.2 L/min with increasing the liquid flowrate. Whereas, the increment was exposed to be very high for 1.5 min-1 when the air flowrate was 5 L/min. In the experiments using the pure oxygen, it was 30 mg/L of oxygen concentration finally and it was 3.5 times than using the air. But the time reached the saturated concentration was similar to using the air, and KL·a was similar to using the air too. Analysis between two independent variable and oxygen transfer of the correlation is the same model like KL·a = 0.0161QL1.5371Qg0.5433 using with coefficient non linear regression analysis. It was resulted that the liquid flowrate were approximately three times than air flowrate on effect to oxygen transfer rate.

영어초록

In this study, in order to apply the air and pure oxygen in the Jet Loop Reactor (JLB) in which the oxygen transfer rate is high, differentiate the operation mode according to each air flowrate and liquid flowrate and investigate the oxygen transfer characteristic, an experiment was carried out. The oxygen concentration with the air flowrate (Qg) and liquid flowrate (QL) was identical but the oxygen transfer coefficient (KL·a) is linear depending on degree of two factors. The width of an increase is small in 0.1 min-1 when the air flowrate is 0.2 L/min with increasing the liquid flowrate. Whereas, the increment was exposed to be very high for 1.5 min-1 when the air flowrate was 5 L/min. In the experiments using the pure oxygen, it was 30 mg/L of oxygen concentration finally and it was 3.5 times than using the air. But the time reached the saturated concentration was similar to using the air, and KL·a was similar to using the air too. Analysis between two independent variable and oxygen transfer of the correlation is the same model like KL·a = 0.0161QL1.5371Qg0.5433 using with coefficient non linear regression analysis. It was resulted that the liquid flowrate were approximately three times than air flowrate on effect to oxygen transfer rate.

참고자료

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