Revista de Engenharia Civil e Ambiental

The Possible Contribution of Chlorella vulgaris to Uptake High Concentration Carbon Dioxide to Alberta’s Climate Leadership Plan.

Abstract

Hosseini S and Chu Angus

In November 2015, the Government of Alberta proposed the Climate Leadership Plan (CLP). It aims to reduce carbon emissions while diversifying Alberta’s economy and protecting the health and the environment. In this research, the possibility of the contribution of CLP and using Chlorella vulgaris (C. vulgaris) in different biomass concentration to sequester CO₂ in the domestic wastewater effluent as the Medium is assessed. Wastewater is an appropriate, renewable, economical medium, which contains enough nutrients. After cultivation of stock solution to 5% (v/v) CO₂ the CO₂ sequestration rate by C. vulgaris was measured in the presence of 20% (v/v) CO₂ in the total volume of photobioreactor headspace. C. vulgaris illustrated the ability of fixation of 20% CO₂ in the total gas volume of the photobioreactor headspace in optimal physical conditions in 35 hours. The CO₂ fixation rate was higher in the middle and end of the exponential growth phase compared to other growth phases.