文献类型：期刊文献

英文题名：Novel flat-plate photobioreactors for microalgae cultivation with special mixers to promote mixing along the light gradient

作者：Huang, Jianke[1];Li, Yuanguang[1];Wan, Minxi[1];Yan, Yi[1];Feng, Fei[2];Qu, Xiaoxing[2];Wang, Jun[3];Shen, Guomin[1];Li, Wei[2];Fan, Jianhua[1];Wang, Weiliang[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[3]Jiaxing Zeyuan Bioprod Co Ltd, Jiaxing 314007, Peoples R China

年份：2014

卷号：159

起止页码：8

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20141217484266);WOS:【SCI-EXPANDED(收录号:WOS:000335393500002)】；

基金：This research was funded by National Basic Research Program China (973 Program: 2011CB200903), National High Technology Research and Development Program (863 Programs: 2013AA 065804 and 2012AA050101), National Natural Science Foundation of China (31372548), National Key Technologies R&D Program (2011BAD23B04).

语种：英文

外文关键词：Novel flat-plate photobioreactor; Mixer; Computational fluid dynamics; Light/dark cycles; Microalgae cultivation

摘要：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.