Growth Kinetics for Microalgae Grown in Palm Oil Mill Effluent (POME) medium at various CO2 Levels

3rd International Conference on Global Sustainability and Chemical Engineering

工业技术;化学工业

Razali, S.^1 ; Salihon, J.^1 ; Ahmad, M.A.^1

Faculty of Chemical Engineering, Universiti Teknologi MARA, Selangor, Shah Alam

40450, Malaysia^1

关键词: Bioreactor system;    CO2 sequestration;    Data and information;    Logistic models;    Maximum specific growth rates;    Palm oil mill effluents;    Specific growth rate;    Substrate saturation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/358/1/012023/pdf
DOI  :  10.1088/1757-899X/358/1/012023

学科分类：工业工程学

来源: IOP

【 摘 要 】

This paper sought to find the growth kinetic data of maximum specific growth rate (μmax) and substrate saturation constant (KS) for a microalgal reaction system over various dissolved CO2 levels (0.04, 0.1, 0.3, 0.5, 0.8, 1.0, 5.0, 10.0% v/v) at a constant sparging rate of 1.2 vvm, by using logistic model and Monod kinetics. The reaction system consisted of microalgae growing in palm oil mill effluent (POME) medium in 1 L flask with constant light illumination and sparged with the specified CO2 gas mixture. It is found from the experimental works that the values of μmax and KS to be at 0.04958 h-1 and 0.03523% (v/v) respectively. The results also showed that utilizing CO2 levels (v/v) in the sparging gas mixture more than 1% (v/v) would not improve microalgae growth significantly as expressed in the values of specific growth rate μ. These data and information are critically important for bioreactor scaling up purposes, especially bioreactor system dedicated for microalgae products and CO2 sequestration.