山西农业大学学报（自然科学版）2017，Vol.37Issue(1)：54-59,76,7.
8种不同絮凝剂对埃氏小球藻絮凝效应的研究
Eight different flocculants study of Chlorella emersonii flocculation effect
摘要
Abstract
[Objective]Flocculation was distinguished as a promising method in microalgae harvest for its low cost and easy operation.For the establishment of a simple and efficient system to collect microalgae.[Methods]Eight flocculant including metal salts (ferric chloride,ferric sulfate,aluminium chloride and aluminium potassium sulphate),alkaline (sodium hydroxide and calcium hydroxide),and organic polymer compounds (polyacrylamide and chitosan),were chosen to flocculate Chlorella emersonii in this study,moreover,the flocculated efficiency using different flocculants and appropriate conditions were explored.[Results]Ferric sulfate,aluminium potassium sulphate,sodium hydroxide and calcium hydroxide were effective flocculant for microalgae flocculation considering their flocculation efficiency and consumption.The flocculation efficiency could reached 95％ after 80 minutes standing with 0.3 g L-1 ferric sulfate or 0.7 g L-1 aluminium potassium sulphate.When using calcium hydroxide and sodium hydroxide as flocculants,the flocculation efficiency achieved 97％ and 93％ with the concentration of 0.5 and 0.9 g L-1 respectively.[Conclusion]In view of efficiency,cost and environmental,effect in Chlorella flocculation,calcium hydroxide was selected as the optimal flocculant and other experimental conditions were also optimized then.Results indicated that optimum conditions for flocculation were pH =8,algae solution OD680 =1.2,stirring speed 150 r min-1 and mixing time 2 min.关键词
埃氏小球藻/采收/絮凝/絮凝剂/絮凝效率Key words
Chlorella emersonii/Harvest/Flocculation/Flocculant/Flocculation efficiency分类
农业科技引用本文复制引用
赵奎,王亚君,武振晋,陈通,季春丽,薛金爱,李润植..8种不同絮凝剂对埃氏小球藻絮凝效应的研究[J].山西农业大学学报（自然科学版）,2017,37(1):54-59,76,7.基金项目
国家“948”项目(2014-Z39),山西省煤基重点科技攻关项目(FT-2014-01) （2014-Z39）
