Enhanced flashing light effect with up-down chute baffles to improve microalgal growth in a raceway pond
作者： Jun Cheng , Zongbo Yang , Qing Ye , Junhu Zhou , Kefa Cen
DOI: 10.1016/J.BIORTECH.2015.04.050
关键词: Liquid velocity 、 Mass transfer coefficient 、 Vortex 、 Raceway pond 、 Baffle 、 Environmental engineering 、 Light effect 、 Materials science 、 Mixing (process engineering) 、 Mechanics 、 Flashing
摘要: Abstract Novel up-down chute baffles that sequentially generate clockwise and anticlockwise liquid vortexes were developed to increase vertical velocity between the bottom dark area top light in a raceway pond. The velocity, mixing time, mass transfer coefficient measured as functions of paddlewheel speed air aeration rate by using particle imaging velocimeter, pH probes, dissolved oxygen probes. decreased time increased 41% 25%, respectively. Besides, from ∼0.5 cm/s ∼6.1 cm/s. As result, dark–light cycle period was reduced 1/12. This enhanced flashing effect with biomass yield 32.6% same
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