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Microalgal Systems for Integrated Carbon Sequestration from Flue Gas and Wastewater Treatment

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Application of Microalgae in Wastewater Treatment

Abstract

In spite of the enormous measures to curb carbon emission to the atmosphere, the CO concentration in the atmosphere is rising at a steady state. It is mainly due to the industrial emissions and that could not be restricted owing to its importance in national development and the economy. Hence, carbon capture and storage (CCS) technologies in situ at industries will be a reasonable option. Microalgae have potentials and are promising in its application in sequestering CO directly from the flue gas. Microalgal carbon sequestration involves single-step CCS and reduces the technological and economic constraints associated with separate process for carbon capture and storage. They are also efficient in treating a wide variety of industrial wastewater and it provides a wonderful opportunity to utilize these wastewaters to cultivate microalgae and sequestering CO from the flue gas in the process. Successful amalgamation of microalgal carbon sequestration and wastewater treatment could be environmentally and economically sustainable method to produce algal biomass. The outcomes from this process will be that carbon emission from coal burning is reduced, the value-rich algal biomass produced could be utilized for production of various commercially important products and the treated wastewater be used for irrigation purposes or for another round of microalgal cultivation. This chapter emphasizes the importance and challenges associated with integrated microalgal systems for carbon sequestration and remediation of industrial effluent with a special note on its life cycle assessment.

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Acknowledgments

GD is thankful to the Department of Science and Technology, Govt of India for sponsoring his project through National Postdoctoral Fellowship scheme (PDF/2017/000897).

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Dineshbabu, G., Vijayan, D., Uma, V.S., Makut, B.B., Das, D. (2019). Microalgal Systems for Integrated Carbon Sequestration from Flue Gas and Wastewater Treatment. In: Gupta, S., Bux, F. (eds) Application of Microalgae in Wastewater Treatment. Springer, Cham. https://doi.org/10.1007/978-3-030-13909-4_15

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