Evaluation of the marine algae Ulva fasciata and Sargassum sp for the biosorption of Cu(II) from aqueous solutions

被引：231

作者：

Karthikeyan, S.

Balasubramanian, R.

IYer, C. S. P.

机构：

[1] Natl Univ Singapore, Div Environm Sci & Engn, Singapore 117576, Singapore

[2] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117576, Singapore

[3] Reg Res Lab, Ctr Marine Analyt Reference & Stand, Trivandrum 695012, Kerala, India

来源：

BIORESOURCE TECHNOLOGY | 2007年 / 98卷 / 02期

关键词：

biosorption; copper(II); Sargassum sp; Ulva fasciata; water treatment;

D O I：

10.1016/j.biortech.2006.01.010

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In this study, the adsorption properties of two different marine algae (Ulva fasciata (green algae) and Sargassum sp. (brown algae)) were investigated. Equilibrium isotherms and kinetics were studied to evaluate the relative ability of the two algae to sequester Cu(II) from aqueous solutions. The maximum biosorption capacity obtained was 73.5 mg g(-1) for U fasciata and 72.5 mg g(-1) for Sargassum sp. at a solution pH of 5.5 +/- 0.5. A significant fraction of the total copper(II) uptake was achieved within 30 min. The copper(II) uptake by the biosorbents was best described by pseudo-second-order rate model. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：452 / 455

页数：4

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