4种淡水微藻对水体重金属铅吸附特性研究  

Adsorption Characteristics of Four Freshwater Microalgae to Heavy Metal Lead in Water

作　　者：程方贝贝 甘婷婷 赵南京 殷高方 汪颖 范梦西[4] 石朝毅 CHENG Fang-beibei;GAN Ting-ting;ZHAO Nan-jing;YIN Gao-fang;WANG Ying;FAN Meng-xi;SHI Chao-yi(School of Biological Food and Environment,Hefei University,Hefei 230601,China;Key Laboratory of Environmental Optics and Technology,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China;1nstitute of Material Science and Information Technology,Anhui University,Hefei 230601,China)

机构地区：[1]合肥学院生物食品与环境学院,安徽合肥230601 [2]中国科学院安徽光学精密机械研究所中国科学院环境光学与技术重点实验室,安徽合肥230031 [3]中国科学技术大学,安徽合肥230026 [4]安徽大学物质科学与信息技术研究院,安徽合肥230601

出　　处：《环境科技》2021年第6期1-6,共6页Environmental Science and Technology

基　　金：国家自然科学基金(61805254);中国科学院仪器设备功能开发技术创新项目(Y93H3g1251);安徽省科技重大专项项目(202003a07020007)。

摘　　要：以较为常见的4种淡水微藻(蛋白核小球藻、二形栅藻、铜绿微囊藻、平裂藻)为吸附剂,对比分析了不同培养时间及不同细胞状态下4种藻对水体中典型重金属铅(Pb^(2+))的吸附特性,并筛选出对Pb^(2+)具有较好吸附性能的合适藻种。结果表明:不同培养时间的4种藻对Pb^(2+)均具有快速吸附特性,在5~10 min内吸附效率即可达到最大值,并且均在培养至第3天时表现出了最好的吸附效果;其中蛋白核小球藻、二形栅藻和铜绿微囊藻对Pb^(2+)的吸附性能均表现为活藻细胞要优于灭活藻细胞,但平裂藻则相反;通过对比,二形栅藻及蛋白核小球藻2种绿藻表现出更好的Pb^(2+)吸附特性,更适于水体中Pb^(2+)的吸附与富集。Four common freshwater microalgae(Chlorella pyrenoidosa,Scenedesmus dimorphus,Microcystis aeruginosa and Merismopedia)were selected as adsorbents,and the adsorption characteristics of four algae species with different incubation times and different cell states to lead(Pb^(2+)),a typical heavy metal in water,were compared.Then the suitable algae species with better adsorption performance for Pb^(2+)was screened out.The results show that all the four algae species at different incubation times had rapid adsorption characteristics for Pb^(2+),and the adsorption efficiency reached the maximum in 5~10 min.And they all showed the best adsorption effect when they were cultivated to the third day.For C.pyrenoidosa,S.dimorphus and M.aeruginosa,the adsorption performance of live algae cells to Pb2+was better than that of inactivated algae cells.But for Merismopedia,that was opposite.By comparison,the two green algae S.dimorphus and C.pyrenoidosa exhibited better adsorption characteristics for Pb^(2+),and were more suitable for the adsorption and enrichment of Pb^(2+)in water.

关 键 词：重金属 铅 微藻 生物吸附 富集 吸附特性 

分 类 号：X5[环境科学与工程—环境工程]