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Investigate the cross‐flow flat‐plate photobioreactor for high‐density culture of microalgae
Author(s) -
Zhao Luhaibo,
Tang Zhiyong,
Gu Yu,
Shan Ying,
Tang Tao
Publication year - 2018
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.2247
Subject(s) - photobioreactor , baffle , mixing (physics) , bioreactor , biomass (ecology) , volumetric flow rate , flow (mathematics) , mass transfer , materials science , mechanics , botany , chemical engineering , physics , biology , engineering , quantum mechanics , agronomy
In order to improve the high‐density culture of microalgae, the traditional flat‐plate photobioreactors were modified with parallel baffles with different structures. The mixing characteristics of triphase flow in four types of bioreactors were investigated using the numerical simulation and experiments. The comparison shows that the results of simulations are consistent with those of experiments. The photobioreactor with ladder‐type parallel baffle could produce multiintensification functions of flow mixing, mass transfer, and bioreaction so that its integrated performances on high‐density culture are more prominent than other bioreactors. The culturing experiments were carried out in a bioreactor fed with air containing 10% CO 2 at a flow rate of 10 L min −1 . The results show that the growth rate of Chlorella vulgaris reaches 0.783 g L −1 d −1 with a total biomass of 7.21 g L −1 within 6 days, further achieving the efficient high‐density prolonged culture with multiperiods, which is significant for industrial applications.