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Title 

Optimization of flocculation conditions for Botryococcus braunii using response surface methodology

Authors 

Dong-Geol KimHee-Mock OhY H ParkHee-Sik KimHyung Gwan LeeChi-Yong Ahn

Publisher 

Springer Verlag (Germany)

Issue Date 

2013

Citation 

Journal of Applied Phycology, vol. 25, no. 3, pp. 875-882

Keywords 

BiodieselBotryococcus brauniiFlocculationHarvestResponse surface methodology

Abstract 

Biodiesel from microalgae is recognized as a desirable, renewable biofuel to replace petroleum-derived transport fuels. However, the efficient harvesting of microalgae is a major hurdle for commercialization. Therefore, the development of a cost-effective harvesting method is essential to reduce production cost. A partial factorial design was used to screen the main factors involved, which were the concentration of FeCl3, the bioflocculant, and the time of slow mixing. Response surface methodology (RSM) was used to further investigate the optimal conditions for these factors on flocculation of Botryococcus braunii. Analysis of variance and other relevant tests confirmed the validity of the suggested model. The optimal conditions inferred from the obtained equation were 0.79 mM FeCl3, 0.58 % (v/v) bioflocculant, and 180 sec of slow mixing for 1.1 g DCW L-1 of B. braunii. The flocculating activity under these conditions was 90.6 %. By using RSM, the optimal conditions for flocculation of B. braunii could be reached more quickly and efficiently.

ISSN 

0921-8971

Link 

http://dx.doi.org/10.1007/s10811-012-9948-4

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2017-04-19


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