A multiphase mixture model for substrate concentration distribution characteristics and photo-hydrogen production performance of the entrapped-cell photobioreactor
A multiphase mixture model for substrate concentration distribution characteristics and photo-hydrogen production performance of the entrapped-cell photobioreactor
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捕获细胞光生物反应器底物浓度分布特征和光产氢性能的多相混合模型
DOI：
10.1016/j.biortech.2015.01.022
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发表时间：
2015
影响因子：
11.4
通讯作者：
Liu Da-Meng
中科院分区：
文献类型：
--
作者：
Guo Cheng-Long;Cao Hong-Xia;Pei Hong-Shan;Guo Fei-Qiang;Liu Da-Meng
建立了一个多相混合物模型，用于揭示包埋细胞光生物反应器中生物化学反应与传递过程的相互作用机理。考察了不同运行参数（包括运行温度、进水介质pH值和填料床孔隙率）对基质浓度分布特性和光产氢性能的影响。结果表明，模型预测值与实验值吻合较好。此外，在30 °C的运行温度和pH值为7的进水介质条件下，生物降解基质光产氢效果最佳。此外，填充床较低的孔隙率有利于提高光产氢性能，这是由于填充床在单元体积中的基质转移比表面积增加，从而提高了基质转移到凝胶颗粒中的量。
A multiphase mixture model was developed for revealing the interaction mechanism between biochemical reactions and transfer processes in the entrapped-cell photobioreactor packed with gel granules containingRhodopseudomonas palustrisCQK 01. The effects of difference operation parameters, including operation temperature, influent medium pH value and porosity of packed bed, on substrate concentration distribution characteristics and photo-hydrogen production performance were investigated. The results showed that the model predictions were in good agreement with the experimental data reported. Moreover, the operation temperature of 30 °C and the influent medium pH value of 7 were the most suitable conditions for photo-hydrogen production by biodegrading substrate. In addition, the lower porosity of packed bed was beneficial to enhance photo-hydrogen production performance owing to the improvement on the amount of substrate transferred into gel granules caused by the increased specific area for substrate transfer in the elemental volume.