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Optimization of Microalgae Harvesting Using Flocculation and Dissolved Air Floatation
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  • Journal title : KSBB Journal
  • Volume 27, Issue 2,  2012, pp.103-108
  • Publisher : Korean Society for Biotechnology and Bioengineering
  • DOI : 10.7841/ksbbj.2012.27.2.103
 Title & Authors
Optimization of Microalgae Harvesting Using Flocculation and Dissolved Air Floatation
Kwon, Hyuck-Jin; Jung, Chang-Kyou; Kim, Nam-Hoon; Lee, Jin-Won;
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The harvesting of microalgae is a critical step that precedes biodiesel conversion. The most widely used harvesting technology is flocculation and floatation. In this study, the efficiency of the flocculants aluminum sulfate and poly aluminum chloride were evaluated for harvesting the alga Dunaliella tertiolecta in conjunction with dissolved air floatation. Using the jar test the optimum concentration range for aluminum sulfate was 1.0~1.5 g/L and for poly aluminium chloride, 1.5~2.0 g/L. The degree of coagulation was visualized by microscopy. Further analysis in combination with dissolved air floatation showed that the optimal concentration for aluminum sulfate was 1.1 g/L and for poly aluminum chloride, 1.6 g/L.
Microalgae;Harvest;Dunaliella;Flocculation;Floatation;Dissolved air Floatation;
 Cited by
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