考察了泡沫分离法采收小球藻的可行性,研究了不同表面活性剂、表面活性剂用量、藻液PH值、藻液原液体积、分离气速等因素对泡沫分离法采收小球藻的影响.结果表明,在本实验中构建的泡沫分离装置条件下采用泡沫分离法收集小球藻时,以十六烷基三甲基溴化铵为表面活性剂,且在其用量为0.25g/l、藻液PH为11、分离原液体积为200Ml和分离气体流速为70Ml/MIn时,富集比和分离率相对较高,富集比和分离率分别为8.39和99%,小球藻的泡沫分离收集效果最好.The Chlorella vulgaris harvesting using foam separation was studied in this work.The optimum surfactant and the optimum concentration of surfactants were investigated,as well as the optimum pH,volume of algae culture and the gas velocity.The results showed that the cetyl trimethyl ammonium bromide was the best surfactant in the study and the optimum surfactant concentration was 0.25g/L.Additionally,the optimum volume of algae culture was 200 mL,the optimum pH was 11 and the gas velocity was70mL/min,under which the higher enrichment ratio and the isolation rate were up to 8.39 and 99%,respectively.国家自然科学基金(21406185); 福建省科技计划重点项目(2013H0043
