원문정보
초록
영어
Flocculation of three marine algae, Chlorella ellipsoidea, Dunaliella bardawil, and Dunaliella tertiolecta, were studied to optimize harvesting method for concentrating microalgae from microalgae mass culture. It is well known that the mass density of microalgae are usually very low and it is not economic to concentrate for the purpose of biodiesel production. To find out improved conditions for microalgae harvesting by chemical flocculation, various chemical flocculants, such as organic flocculants (aluminium sulfate, aluminium potassium sulfate, ferrous sulfate, ferric sulfate, ferric chloride, calcium hydroxide, sodium carbonate, sodium nitrite, and sodium aluminate), inorganic flocculant (polyacrylamide), biopolymer flocculants (chitosan and starch) were tested. Among the tested flocculants, ferric chloride, ferric sulfate, calcium hydroxide, aluminium sulfate, aluminium potassium sulfate, sodium aluminate, showed best performance.