![]() ![]() CO 2 emitting industries are contributing a major role in the increase of greenhouse gases in the atmosphere for several decades. Greenhouse gas emissions by industries and human activities make the planet warmer. After CO2 capture, the algal biomass was used to extract value-added products such as amino acid rich feed, algal oil, algal pellets, etc. A 400-ml and 25-l flat panel photo-bioreactor (PSI Photo-bioreactors) was used for CO2 capture. The study involves integrated methods for utilizing 90–99% CO2 from a natural gas processing industry (GAIL India, Ltd.) as well as 13–15% of CO2 from flue gas of thermal power plants (Chandrapura and Santaldih Thermal Power Station) as carbon nutrient source along with the additional nutritional supplements. ![]() The algal strains were screened based on different parameters like fast growth rate, high rate of photosynthesis, strong tolerance to the trace constituents of other gases (gaseous hydrocarbons, NOx, SOx, etc.), high temperature tolerance, and possibility to produce high value products, etc. In the present study, freshwater algal species were isolated and identified for CO2 capture, such as Hydrodictyon, Spirogyra, Oscillatoria, Oedogonium, and Chlorella. In addition, algae-based CO2 mitigation strategy has the potential to obtain valuable products at the end of the process. Algae-based CO2 conversion is a cost-effective option for reducing carbon footprint. In addition to our mangrove initiative Aramco is working on other nature-based solutions such as developing algae ponds and photo bioreactors that are expected to reduce thousands of tons of CO 2 emissions from across our operations.The increased usage of fossil fuels has led to increase in the concentration of CO2, which is a greenhouse gas responsible for global warming. Our mangrove plantation initiative to restore lost mangrove habitats in the Kingdom’s coastal areas is a voluntary sustainability community initiative to protect the natural habitats and ecosystems our company relies on. Mangrove trees act as an effective, natural carbon sink. ![]() In line with CCE, Aramco’s initiative to protect, plant and restore millions of mangrove trees inside and outside the Kingdom will absorb carbon and enhance biodiversity, while also prioritizing water conservation, treatment and reuse. Nature-based solutions also play an important role in removing carbon as part of the Circular Carbon Economy (CCE) - the framework promoted by the Kingdom and adopted by the G20 member states during Saudi Arabia’s presidency of the G20. Alternatively, CO 2 can be sequestered by cultivating algae, which can be harvested and processed to produce useful products like biofuel and protein-rich animal feed. Mangrove trees, for example, sequester carbon far more effectively and permanently than terrestrial forests.
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