Direct Study of CO 2 Capture Efficiency during Microalgae Arthrospira platensis Cultivation at High CO 2 Concentrations

Elizaveta A. Chunzhuk, Anatoly V. Grigorenko, Nadezhda I. Chernova, Sofya V. Kiseleva, Kirill G. Ryndin, Oleg S. Popel, Sergey Ya Malaniy, Olga V. Slavkina, Fabio de Farias Neves, Lijian Leng, Vinod Kumar and Mikhail S. Vlaskin ()
Additional contact information
Elizaveta A. Chunzhuk: Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia
Anatoly V. Grigorenko: Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia
Nadezhda I. Chernova: Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia
Sofya V. Kiseleva: Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia
Kirill G. Ryndin: Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia
Oleg S. Popel: Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia
Sergey Ya Malaniy: Lukoil-Engineering LLC, 109028 Moscow, Russia
Olga V. Slavkina: Lukoil-Engineering LLC, 109028 Moscow, Russia
Fabio de Farias Neves: Department of Fisheries Engineering, Santa Catarina State University (UDESC), Florianópolis 88790-000, SC, Brazil
Lijian Leng: School of Energy Science and Engineering, Central South University, Changsha 410083, China
Vinod Kumar: Department of Life Science, Graphic Era (Deemed to Be University), Dehradun 248002, Uttarakhand, India
Mikhail S. Vlaskin: Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia

Energies, 2023, vol. 16, issue 2, 1-14

Abstract: Direct study of CO 2 capture efficiency during microalgae Arthrospira platensis cultivation at high CO 2 concentrations was carried out. Microalgae were grown in a 90 L photobioreactor on Zarrouk’s medium prepared with distilled water. Three 15-day experiments were carried out with different initial CO 2 concentrations: 1, 5, and 9 vol.%. During the experiments, both the change in the optical density of the microalgae suspension and the direct change in the CO 2 concentration in the chamber were measured. The maximum decrease in CO 2 concentration due to the growth of microalgae was 0.10 vol.% (CO 2 )/day in the experiment with an initial CO 2 concentration of 5 vol.%. Growth rate of biomass density was 79.4, 76.3, and 48.4 (mg/L)/day at 1, 5, and 9 vol.% CO 2 concentrations, respectively. During the experiment with initial CO 2 concentrations of 1 and 5 vol.%., pH of the culture medium was increased, but pH was decreased from 9.2 to 8.8 at 9 vol.%. In general, good viability (high quality of biomass and high rate of its growth) of Arthrospira platensis was established at 1 and 5 vol. (CO 2 )%, while massive death of Arthrospira platensis cells was observed in the experiment with 9 vol. (CO 2 )%. Biochemical analysis of the resulting biomass revealed a decrease in the content of lipids and proteins with an increase in CO 2 concentration.

Keywords: CO 2 capture; Arthrospira platensis; Spirulina platensis; photobioreactor; direct study; microalgae cultivation; high CO 2 concentrations (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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