Journal
BIORESOURCE TECHNOLOGY
Volume 159, Issue -, Pages 8-16Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.01.134
Keywords
Novel flat-plate photobioreactor; Mixer; Computational fluid dynamics; Light/dark cycles; Microalgae cultivation
Funding
- National Basic Research Program China (973 Program) [2011CB200903]
- National High Technology Research and Development Program (863 Programs) [2013AA 065804, 2012AA050101]
- National Natural Science Foundation of China [31372548]
- National Key Technologies RD Program [2011BAD23B04]
Ask authors/readers for more resources
Novel flat-plate photobioreactors (PBRs) with special mixers (type-a, type-b, and type-c) were designed based on increased mixing degree along the light gradient. The hydrodynamic and light regime characteristic of the novel PBRs were investigated through computational fluid dynamics. Compared with the control reactor without mixer, the novel reactors can effectively increase liquid velocity along the light gradient, the frequency of light/dark (L/D) cycles, and the algal growth rates of Chlorella pyrenoidosa. The maximum biomass concentrations in type-a, type-b, and type-c reactors were 42.9% (1.3 g L-1), 31.9% (1.2 g L-1), and 20.9% (1.1 g L-1) higher than that in the control reactor (0.91 g L-1), respectively, at an aeration rate of 1.0 vvm. Correlation analysis of algal growth rate with the characteristics of mixing and light regime shows the key factors affecting algal photoautotrophic growth are liquid velocity along the light gradient and L/D cycles rather than the macro-mixing degree. (c) 2014 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available