Biosorption of binary mixtures of copper and cobalt by Penicillium brevicompactum

被引：0
|
作者：
Tsekova, Kolishka [1 ]
Ianis, Maria
Dencheva, Vera
Ganeva, Sonya
机构：
[1] Bulgarian Acad Sci, Inst Microbiol, Dept Microbial Ecol, BU-1113 Sofia, Bulgaria
[2] Univ Sofia, Fac Chem, BU-1126 Sofia, Bulgaria
来源：
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION C-A JOURNAL OF BIOSCIENCES | 2007年 / 62卷 / 3-4期
关键词：
heavy metals; competitive sorption; Penicillium brevicompactum;
D O I：
暂无
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
This work reports on a study of the biosorption of copper and cobalt, both singly and in combination (in equimolar concentrations), by the resting cells of Penicillium brevicompactum. Equilibrium batch sorption studies were carried out at 30 degrees C and pH 5.0 for a contact time of I hour to guarantee that equilibrium was reached. The equilibrium data were analyzed using the Langmuir and Freundlich isotherms. The adsorption of binary mixtures of heavy metal solutions on the fungal biomass was found to be of competitive type where the adsorption capacity for any single metal decreased in the presence of the other. The cobalt ions showed a higher affinity for Penicillium brevicompactum than the copper ions.
引用
收藏
页码：261 / 264
页数：4
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