| Summary: | The problem of the excessive CO<sub>2</sub> emitted into the atmosphere is one of the significant problems for the modern world and ecology. This article examines the dynamics of carbon dioxide absorption from thermal power plants, TPP, and waste gases by three types of microalgae, the most typical for the Russian Federation: <i>Chlorella kessleri</i>, <i>Chlorella vulgaris,</i> and <i>Chlorella sorokiniana</i>. The exhaust gases of the TPP contain up to 39% carbon dioxide. In this work, the rate of absorption of carbon dioxide from model exhaust gases with a CO<sub>2</sub> content of up to 39% was studied. As a result of the study, a species of microalgae (<i>Chlorella vulgaris</i>) was identified, characterized by the maximum rate of absorption of CO<sub>2</sub> = 0.412 g/L·day and the maximum volume of CO<sub>2</sub> utilized in 1 day = 8.125 L. The conducted research proved the possibility of utilizing a large content (up to 39%) of carbon dioxide from the exhaust gases of the TPP with the help of microalgae of the genus <i>Chlorella</i>. A scheme for the utilization of CO<sub>2</sub> with the help of microalgae is also proposed, which meets the principles of a circular economy (closed cycle).
|
|---|