CARBON DIOXIDE FIXATION DUE TO PHOTOSYNTHESIS OF EUGLENA IN POROUS MORTAR

Abstract

In this study, a new concept of the fixation of carbon dioxide（CO₂）in the air to cementitious materials was proposed by using the function of the photosynthesis of microorganism, Euglena. The amount of CO₂ fixation was calculated from the measured change in CO₂ concentration in sealed containers with porous mortar, Euglena, or porous mortar with Euglena. As a result, it was observed that the amount of CO₂ fixation of porous mortar was increased by the photosynthesis of Euglena. The temperature dependency of the amount of CO₂ fixation was also investigated. Then, it was found that the amount of CO₂ fixation by photosynthesis of the Euglena in porous mortar smaller than the amount by Euglena in water because the supply of the sunlight was limited for the Euglena in porous mortar.