KSBB Journal

The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Optimization of Spirogyra Flocculation Using Polyaluminium Chloride

Polyaluminium Chloride를 이용한 미세조류 Spirogyra의 응집 최적화

  • Baek, Jaewon (Department of Biotechnology and Bioengineering, Chonnam National University) ;
  • Choi, Jong-Il (Department of Biotechnology and Bioengineering, Chonnam National University)
  • Received : 2014.03.17
  • Accepted : 2014.06.13
  • Published : 2014.06.30
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Abstract

Flocculation is known one of the effective methods for harvesting microalgae. This study was aimed to optimize the flocculation condition for decreasing the amounts of flocculant and obtaining the highest yield of algal biomass. To achieve this goal, it was optimized the flocculant concentration, reaction pH and the concentration of cell density for harvest using response surface methodology (RSM). The flocculation of microalgae, Spirogyra varians, was carried out using inorganic flocculant polyaluminium chloride. By the RSM result, the optimal flocculation condition was calculated 5 ppm of polyaluminum chloride, pH 7.5 and 0.33 of optical cell density at $OD_{640}$. The obtained recovery yield of S. varians was 97.6% at the optimal condition.

Keywords

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