Removal of cadmium from aqueous solution by the filamentous cyanobacterium Tolypothrix tenuis

被引：42

作者：

Inthorn, D ^{[1
]}

Nagase, H ^{[1
]}

Isaji, Y ^{[1
]}

Hirata, K ^{[1
]}

Miyamoto, K ^{[1
]}

机构：

[1] OSAKA UNIV, FAC PHARMACEUT SCI, ENVIRONM BIOENGN LAB, SUITA, OSAKA 565, JAPAN

来源：

JOURNAL OF FERMENTATION AND BIOENGINEERING | 1996年 / 82卷 / 06期

关键词：

cyanobacteria; cadmium; adsorption;

D O I：

10.1016/S0922-338X(97)81256-1

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Cadmium removal was investigated using the filamentous cyanobacterium, Tolypothrix tenuis, which exhibited a high level of Cd tolerance and had the highest Cd removal ability among 17 cyanobacterial strains obtained in Thailand. The removal of Cd was equilibrated within 30 min, and the type of Cd removal could be described by the Langmuir isotherm. Cadmium removal by T. tenuis is thus suggested to be caused by adsorption of Cd onto the cell surface, T. tenuis showed consistent Cd adsorption ability over a wide range of temperature and pH. The adsorption of Cd was not strongly affected in the presence of Na, K, Ca, and Mg ions. These results suggest that T. tenuis may be applicable to the removal of Cd from surface and ground water in certain outdoor situations.

引用

页码：580 / 584

页数：5

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