Kinetic characteristics and modeling of microalgae Chlorella vulgaris growth and CO2 biofixation considering the coupled effects of light intensity and dissolved inorganic carbon

被引：100
作者：
Chang, Hai-Xing
Huang, Yun [1 ]
Fu, Qian
Liao, Qiang
Zhu, Xun
机构：
[1] Chongqing Univ, Minist Educ, Key Lab Low Grade Energy Utilizat Technol & Syst, Chongqing 400030, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2016年 / 206卷
基金：
中国国家自然科学基金;
关键词：
Microalgae; Kinetics characteristics; Mathematic models; Carbon biofixation; SCENEDESMUS-OBLIQUUS; FIXATION; DIOXIDE; REACTOR; ACID; OPTIMIZATION; CULTURE;
D O I：
10.1016/j.biortech.2016.01.087
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Understanding and optimizing the microalgae growth process is an essential prerequisite for effective CO2 capture using microalgae in photobioreactors. In this study, the kinetic characteristics of microalgae Chlorella vulgaris growth in response to light intensity and dissolved inorganic carbon (DIC) concentration were investigated. The greatest values of maximum biomass concentration (X-max) and maximum specific growth rate (mu(max)) were obtained as 2.303 g L-1 and 0.078 h(-1), respectively, at a light intensity of 120 mu mol m(-2) s(-1) and DIC concentration of 17 mM. Based on the results, mathematical models describing the coupled effects of light intensity and DIC concentration on microalgae growth and CO2 biofixation are proposed. The models are able to predict the temporal evolution of C. vulgaris growth and CO2 biofixation rates from lag to stationary phases. Verification experiments confirmed that the model predictions agreed well with the experimental results. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：231 / 238
页数：8
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