alexa Using nano-chitosan for harvesting microalga Nannochloropsis sp.
Environmental Sciences

Environmental Sciences

Journal of Fundamentals of Renewable Energy and Applications

Author(s): Farid MS, Shariati A, Badakhshan A, Anvaripour B

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Abstract In this study, chitosan and nano-chitosan were used as flocculants agents for harvesting microalga Nannochloropsis sp. chitosan was modified to nano-chitosan by crosslinking with sodium tripolyphosphate. The effects of type and dosage of flocculants and the pH of the culture were investigated on biomass recovery. Optimum dosages for both bio-flocculants were found. The results showed that the dosage of flocculant consumption decreases by 40\% and biomass recovery increases by 9\% when nano-chitosan instead of chitosan is used as flocculant agent. Also, the recycled water from the harvesting process was reused which increases the growth of microalgae by about 7\%. Finally, the cost analysis of harvesting process showed the feasibility of using nano-chitosan as flocculation agent. Copyright © 2013 Elsevier Ltd. All rights reserved. This article was published in Bioresour Technol and referenced in Journal of Fundamentals of Renewable Energy and Applications

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