title: An effective device for gas-liquid oxygen removal in enclosed microalgae culture.
abstract: 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(A)(La,CO(2)) for the absorption of gaseous CO(2) and K(A)(La,O(2)) 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.
authors.affiliation: Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People's Republic of China.
authors.forename: Zhenfeng
authors.initials: Z
authors.lastname: Su
authors.forename: Ruijuan
authors.initials: R
authors.lastname: Kang
authors.forename: Shaoyuan
authors.initials: S
authors.lastname: Shi
authors.forename: Wei
authors.initials: W
authors.lastname: Cong
authors.forename: Zhaoling
authors.initials: Z
authors.lastname: Cai
mesh_terms: D000042:Absorption; D019149:Bioreactors / Q000382:microbiology; D002245:Carbon Dioxide / Q000737:chemistry / Q000378:metabolism*; D046508:Culture Techniques / Q000295:instrumentation*; D004867:Equipment Design; D007700:Kinetics; D010100:Oxygen / Q000737:chemistry / Q000378:metabolism*; D053545:Spirulina / Q000737:chemistry / Q000254:growth & development / Q000378:metabolism*
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen