화학공학소재연구정보센터
Applied Biochemistry and Biotechnology, Vol.160, No.2, 428-437, 2010
An Effective Device for Gas-Liquid Oxygen Removal in Enclosed Microalgae Culture
A high-performance gas-liquid transmission device (HPTD) was described in this paper. To investigate the HPTD mass transfer characteristics, the overall volumetric mass transfer coefficients, K-La,CO2(A) for the absorption of gaseous CO2 and K-La,O2(D) for the desorption of dissolved O-2 were determined, respectively, by titration and dissolved oxygen electrode. The mass transfer capability of carbon dioxide was compared with that of dissolved oxygen in the device, and the operating conditions were optimized to suit for the large-scale enclosed micro-algae cultivation. Based on the effectiveness evaluation of the HPTD applied in one enclosed flat plate Spirulina culture system, it was confirmed that the HPTD can satisfy the demand of the enclosed system for carbon supplement and excessive oxygen removal.