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Bioresour Technol. 2011 Apr;102(8):4945-53. doi: 10.1016/j.biortech.2011.01.054. Epub 2011 Feb 1.

Development of suitable photobioreactors for CO2 sequestration addressing global warming using green algae and cyanobacteria.

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Department of Biotechnology, Indian Institute of Technology Kharagpur 721302, India.


CO(2) sequestration by cyanobacteria and green algae are receiving increased attention in alleviating the impact of increasing CO(2) in the atmosphere. They, in addition to CO(2) capture, can produce renewable energy carriers such as carbon free energy hydrogen, bioethanol, biodiesel and other valuable biomolecules. Biological fixation of CO(2) are greatly affected by the characteristics of the microbial strains, their tolerance to temperature and the CO(2) present in the flue gas including SO(X), NO(X). However, there are additional factors like the availability of light, pH, O(2) removal, suitable design of the photobioreactor, culture density and the proper agitation of the reactor that will affect significantly the CO(2) sequestration process. Present paper deals with the photobioreactors of different geometry available for biomass production. It also focuses on the hybrid types of reactors (integrating two reactors) which can be used for overcoming the bottlenecks of a single photobioreactor.

[Indexed for MEDLINE]

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