Biosorption of mercury(II) with different marine algae

被引：2

作者：

Reategui, M. ^{[1
,2
]}

Maldonado, H. ^{[1
]}

Ly, M. ^{[1
]}

Guibal, E. ^{[2
]}

机构：

[1] Univ Peruana Cayetano Heredia, Dept Acad Quim, Av Honorio Delgado,430 Urbanizac Ingn, Lima 31, Peru

[2] Ecole Mines Ales, Lab Genie Environm Ind, F-30319 Ales, France

来源：

BIOHYDROMETALLURGY: A MEETING POINT BETWEEN MICROBIAL ECOLOGY, METAL RECOVERY PROCESSES AND ENVIRONMENTAL REMEDIATION | 2009年 / 71-73卷

关键词：

algae; biosorption; biomass; mercury(II); HEAVY-METALS; IONS;

D O I：

10.4028/www.scientific.net/AMR.71-73.585

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Five species of algae (Lessonia nigrescens Bory, Prionitis decipiens, Grateloupia doryphora, Lessonia trabeculata and Macrocystis integrifolia) collected from Peruvian coast have been tested for mercury recovery from synthetic solutions. Preliminary experiments showed that optimum sorption occurred at pH 6-7 and that Lessonia algae were the most efficient sorbents for Hg(II). The biomass was cross-linked with calcium chloride. Stabilized biosorbent showed sorption capacity as high as 267 mg g(-1) at pH 6. The sorption isotherm was described by the Langmuir equation, while the pseudo-second order equation was used for modeling uptake kinetics. Salt addition strongly affected mercury sorption following the sequence: NaNO3 <<Na2SO4 <<< NaCl.

引用

页码：585 / +

页数：2

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