微藻胞外聚合物与棕鞭藻絮凝效率的关系  

Relationship between Algal Organic Matter and flocculation efficiency of Ochromonas sp.

作　　者：张安龙 文然 苏琰儒 张波[2] ZHANG An-long;WEN Ran;SU Yanru;ZHANG Bo(School of Environmental Science and Engineering,Shaanxi University of Science&Technology,Xi'an 710021,China;Medical School,Shanxi DaTong University,Datong 037000,China)

机构地区：[1]陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安710021 [2]山西大同大学医学院,山西大同037000

出　　处：《陕西科技大学学报》2021年第5期20-25,共6页Journal of Shaanxi University of Science & Technology

基　　金：陕西省科技厅重点研发计划项目(2017ZDXM-SF-096);陕西省科技厅自然科学基础研究计划项目(2020JQ-714)。

摘　　要：细胞采收是微藻能源开发的关键.通过比较棕鞭藻在BG11、glu+BG11、生活污水三种环境的絮凝效率,并对AOM(Algal Organic Matter)进行组成分析,以揭示AOM特性与微藻絮凝的关系.结果表明,生活污水中微藻絮凝效率最高(96%),AOM产量最低(0.036 g/L);glu+BG11中絮凝效率最低(68%),AOM产量最高(0.109 g/L).不同环境中微藻分泌的蛋白质浓度接近,而多糖浓度的显著差异是AOM产量不同的主要原因,其中glu+BG11中AOM所含的阿拉伯糖含量大幅增加,生活污水中AOM单糖组分则以鼠李糖为主.Cell harvesting is the key to microalgae energy development.The flocculation efficiency of Ochromonas sp.in BG11,glu+BG11 and domestic wastewater was compared to reveal the relationship between the characteristics of AOM(Algal Organic Matter)and the flocculation of microalgae with the composition of AOM analyzed.The results showed that the flocculation efficiency of microalgae in domestic wastewater was the highest(96%),and the yield of AOM was the lowest(0.036 g/L).While,the flocculation efficiency of glu+BG11 was the lowest(68%),and the yield of AOM was the highest(0.109 g/L).The concentration of protein secreted by microalgae in different environments was similar,and the significant difference of polysaccharide concentration was the main reason for the different AOM production.The arabinose content of AOM in glu+BG11 increased significantly,while rhamnose was the main monosaccharide component of AOM in domestic wastewater.

关 键 词：营养环境 棕鞭藻 胞外有机物 絮凝 

分 类 号：X703[环境科学与工程—环境工程]