羊栖菜对Cu^(2+)的吸附特性研究  

Study on Adsorption Property of Copper Ion by Sargassum fusiform(Sargassaceae, Phaeophyta)

作　　者：李晓婷[1,2] 陈应华[1,2] 

机构地区：[1]国家海洋设施养殖工程技术研究中心,浙江舟山316022 [2]浙江海洋学院海洋科学与技术学院,浙江舟山316022

出　　处：《浙江海洋学院学报（自然科学版）》2013年第5期430-433,共4页Journal of Zhejiang Ocean University(Natural Science Edition)

基　　金：国家海洋公益性行业科研专项(201005013)

摘　　要：研究了羊栖菜对水溶液中Cu2+的吸附特性。结果表明:羊栖菜吸附重金属铜受pH影响最大,pH为4～4.5时吸附效果最好,在20～25 min内金属去除率达到近90%,60 min时羊栖菜对重金属的吸附基本达到饱和。吸附容量随吸附剂添加量增加而降低。Langmuir可以很好地拟合实验得到平衡数据。This article studied the adsorption characteristics of Sargassumfusiforme in aqueous solution of Cu^2＋. We can obtain S. fusiforme adsorption of heavy metal copper most affected by pH and the optimal pH is 4 to 4.5. The metal removal rate reached nearly 90% during 20-25 min, and S. fusiforme adsorption of heavy metals is saturated basically during 60min. Adsorption capacity reduces with the biosorption performance increases. The Langmuir model fitted reasonably well the isotherms.

关 键 词：羊栖菜 生物吸附 CU^2+ 

分 类 号：X703[环境科学与工程—环境工程]