Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, Republic of Korea.
Department of Life Science, Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea.
Bioresour Technol. 2018 Feb;249:519-526. doi: 10.1016/j.biortech.2017.10.060. Epub 2017 Oct 16.
The aim of this study is investigate the effect of column diameter (D), height/diameter (H/D) ratio, and gas flow rate on microalgae cultivation, Haematococcus pluvialis. Bubble column reactors with various D and H/D ratio were tested to assess the hydrodynamic properties and biomass production performance. Then, H. pluvialis was cultured under outdoor autotrophic conditions using industrial flue gas. By optimizing the reactor module, reactor volume increased to 354% with minimized biomass loss. Compared to the control, developed module showed biomass and astaxanthin productivity of 0.052 versus 0.053 g/L/day, and 1.48 versus 1.47 mg/L/day, respectively. Consequently, biomass productivity was maintained with increased reactor scale, and the result is applicable to the scale up of overall microalgae cultivation process.
本研究旨在探讨柱径（D）、高径比（H/D）和气体流速对微藻培养的影响，选用雨生红球藻作为研究对象。通过使用不同 D 和 H/D 比的鼓泡塔反应器来评估其流体动力学特性和生物量生产性能。然后，在户外自养条件下使用工业烟道气培养雨生红球藻。通过优化反应器模块，将反应器体积增加了 354%，同时将生物量损失最小化。与对照组相比，开发的模块显示生物量和虾青素的生产力分别为 0.052 与 0.053 g/L/天和 1.48 与 1.47 mg/L/天。因此，在增加反应器规模的同时保持了生物量生产力，并且该结果适用于整个微藻培养过程的放大。
