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An Effective Device for Gas-Liquid Oxygen Removal in Enclosed Microalgae Culture
- Su, Zhenfeng, Kang, Ruijuan, Shi, Shaoyuan, Cong, Wei, Cai, Zhaoling
- Applied biochemistry and biotechnology 2010 v.160 no.2 pp. 428-437
- Spirulina, carbon dioxide, desorption, equipment performance, microalgae, dissolved oxygen, oxygen, aquatic plant 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, [graphic removed] for the absorption of gaseous CO₂ and [graphic removed] for the desorption of dissolved O₂ 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.