Influence of growth rate on biosorption of heavy metals by Nocardia amarae

被引：0

作者：

Kim, DW

Cha, DK

Seo, HJ

Bak, JB

机构：

[1] Cheonan Natl Tech Coll, Dept Environm Engn, Cheonan 330717, Chungnam, South Korea

[2] Univ Delaware, Dept Civil & Environm Engn, Newark, DE 19716 USA

[3] Inha Univ, Dept Environm Engn, Nam Ku, Inchon 402751, South Korea

[4] Korea Univ, Dept Civil & Environm Engn, Seoul 136701, South Korea

来源：

JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY | 2002年 / 12卷 / 06期

关键词：

biosorption; continuous culture; heavy metals; Nocardia amarae; specific surface area;

D O I：

暂无

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：

The goal of the current research was to assess the influence of the growth rate of Nocardia amarae on its overall metal binding capacity. Batch sorption isotherms for cadmium (Cd), copper (Cu), and nickel (Ni) showed that Nocardia cells harvested from chemostat cultures at a dilution rate of 0.33 d(-1) had a significantly higher metal sorption capacity than cells grown at 0.5 and 1 d(-1). The cell surface area estimated using a dye technique indicated that pure N. amarae cells grown at a lower growth rate had a significantly more specific surface area than cells harvested from a higher growth rate operation. Accordingly, this difference in the specific surface area seemed to indicate that the higher metal sorption capacity of the slowly growing Nocardia cells was due to their higher specific surface area.

引用

页码：878 / 881

页数：4