Evaluating of Several Parameters in Marine Chlorella sp. Flocculation Process, and Biodiesel Production via Chlorophyll-Extracted Microalgal Biomass (CEMB)

Yohanis Irenius Yohanis I. Mandik, Benjamas Benjamas Cheirsilp

Abstract


The screening for a high efficient method in harvesting microalgae is an important step to a large scale microalgal biodiesel production.  Magnesium salt (MgSO4·7H2O) concentration of 0.0083 gram per litter of marine Chlorella sp. culture with biomass concentration of 3.78 g/L showed the highest flocculation efficiency (FE) of 94.63%  at pH of 11 after only 10 minutes of flocculation time.  There was no any difference of FE between two different volumes of culture, after 10 minutes of flocculation.

 

Keywords:  Chu 13, flocculation efficiency, magnesium salt, marine Chlorella sp.,         photoautotroph, rapid harvesting


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References


Cheirsilp, B. and Torpee, S. (2012). Enhanced growth and lipid production of microalgae under mixotrophic culture condition: Effect of light intensity, glucose concentration and fed-batch cultivation. Bioresour. Technol. 110: 510–516.

Chiaramonti, D. (2007). Bioethanol: role and production technologies. In: Ranalli, P. (Ed.). Improvement of Crop Plants for Industrial End Uses, pp. 209–251.

John, R.P., Anisha, G.S., Nampoothiri, K.M. and Pandey, A. (2011). Micro and macroalgal biomass: A renewable source for bioethanol. Bioresour. Technol. 102: 186-193.

Largeau, C., Casadevall, E., Berkaloff, C. and Dhamelincourt, P. (1980). Sites of accumulation and composition of hydrocarbons in Botryococcus braunii. Phytochem. 19: 1043–51.

Trent J. (2012). OMEGA: The future of biofuels? In: Conference. The ASEAN algae biofuels conference. Singapore.

Uduman, N., Qi, Y., Danquah, M.K., Forde, G.M. and Hoadley, A. (2010). Dewatering of microalgal cultures: a major bottleneck to algae-based fuels. J. Renew. & Sustain. Energy 2: 0127011–0127015.

Wu, Z., Zhu, Y., Huang, W., Zhang, C., Li, T., Zhang, Y. and Li, A. (2012). Evaluation of flocculation induced by pH increase for harvesting microalgae and reuse of flocculated medium. Bioresour. Technol. 110: 496–502.

Zheng, H.L., Gao, Z., Yin, F.W., Ji, X.J. and Huang, H. (2012). Lipid production of Chlorella vulgaris from lipid-extracted microalgal biomass residues through two-step enzymatic hydrolysis. Bioresour. Technol. 117: 1–6.




DOI: https://doi.org/10.31957/.v5i1.2006

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