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Flocculation과 Dissolved Air Floatation을 이용한 미세조류 수확 최적화
권혁진(Hyuckjin Kwon),정창규(Changkyou Jung),김남훈(NamHoon Kim),이진원(Jinwon Lee) 한국생물공학회 2012 KSBB Journal Vol.27 No.2
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.