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Recent Innovations in Chemical Engineering


ISSN (Print): 2405-5204
ISSN (Online): 2405-5212

Research Article

Effects of Environmental Factors on Chlorella sp. microalgae for Biodiesel Production Purpose: Enhanced Lipid and Biomass Productivity

Author(s): Saeed Dalirynezhad, Ahmad Hallajisani*, Hamoon Nouri and Abooali Golzary

Volume 10, Issue 2, 2017

Page: [119 - 126] Pages: 8

DOI: 10.2174/2405520410666171023144030

Price: $65


Objective: Biodiesel production from microalgae is one of the most suitable and promising sources of clean energy. Various environmental factors affect the microalgae growth. Current study investigates two environmental factors namely temperature and light intensity which affect microalgae growth (by Response surface methodology), and suggests properties of the produced biodiesel through two different methods under optimal cultivation conditions such as temperature and light intensity.

Results: The results showed that temperature has the most effect on microalgae growth, so that the optimal temperature and light intensity were obtained to be 30°C and 10 Klux, respectively. Under foresaid conditions, biomass concentration, maximum specific growth rate and biomass productivity were measured to be as high as 1.88 g/L, 0.1180 l/day and 0.1078 g/L/day, respectively. Saturated fatty acids composition in this microalgae include Myristic acid (C14:0 , 41.13%), Palmitic acid (C16:0 , 10.44%) and Stearic acid (C18:0 , 0.82%).

Conclusion: The Cetane number of the produced biodiesel was measured to be 64.4, which shows high capability of the microalgae in biodiesel production.

Keywords: Biodiesel, biomass productivity, saturated fatty acids, specific growth rate, chlorella sp, fossil fuel.

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