Comparative Study of Carbon Sequestration by Algae in Domestic Sewage and Industrial Effluent

Abstract — This study seeks to explain one of the methods for carbon dioxide capture and sequestration, to reduce the greenhouse effect in sustainable manner. Out of several CO 2 sequestration methods, biological method of CO 2 sequestration is better because the process is less energy intensive. Algae are autotrophic micro-organisms capable of converting CO 2 into carbohydrates and lipids in the presence of light by photosynthesis. In these study micro algae is cultivated for the treatment of domestic wastewater and carbon dioxide sequestration. The work is carried out at two different stages i.e., wastewater treatment carbon dioxide sequestration and tannery effluent treatment with carbon dioxide sequestration from CO 2 gas. From the results we concluded that the algae can be effectively used for the treatment of wastewater when compared to treatment of tannery effluent. So, Algal photosynthetic reaction may hold the key to reducing emission in both economically and environmentally sustainable manner. Renewable form of energy can be produced from this algal biomass & many other useful products can also be produced. Keywords-Carbon dioxide, domestic wastewater, micro algae, renewable energy,tannery effluent. I