BIOSORPTION OF Cu(II) FROM AQUEOUS SOLUTIONS BY IMMOBILIZED MYCELIUM OF TRAMETES VERSICOLOR

被引：2
|
作者：
Gochev, Velizar [1 ]
Velkova, Zdravka [2 ]
Stoytcheva, Margarita [3 ]
Yemendzhiev, Husein [4 ]
Aleksieva, Zlatka [4 ]
Krastanov, Albert [5 ]
机构：
[1] Univ Plovdiv Paisii Hilendarski, Dept Biochem & Microbiol, Plovdiv, Bulgaria
[2] Med Univ Plovdiv, Dept Gen Chem & Biochem, Plovdiv, Bulgaria
[3] Autonomous Univ Baja Calif, Inst Engn, Mexicali, Baja California, Mexico
[4] Bulgarian Acad Sci, Stefan Angeloff Inst Microbiol, Sofia, Bulgaria
[5] Univ Food Technol, Dept Biotechnol, Plovdiv, Bulgaria
来源：
BIOTECHNOLOGY & BIOTECHNOLOGICAL EQUIPMENT | 2012年 / 26卷 / 06期
关键词：
biosorption; Cu(II); immobilized Trametes versicolor; isotherm models; kinetics; CA-ALGINATE; COPPER(II) IONS; HEAVY-METALS; REMOVAL; BIOMASS; BIOSORBENT; LEAD; EQUILIBRIUM; ADSORPTION; RECOVERY;
D O I：
10.5504/BBEQ.2012.0091
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 biosorption potential of heat inactivated mycelium of Trametes versicolor, free and immobilized in Ca-alginate and co-immobilized in Ca-alginate with bentonite and activated carbon, for Cu(II) removal from aqueous solutions was investigated. Among the studied biosorbents heat inactivated fungal mycelium co-immobilized in Ca-alginate with activated carbon was selected as the most successful. The effect of pH, initial metal ion concentration, duration and temperature on the removal efficiency of the biosorbent was studied. Maximum Cu(II) removal 66.80% was reached at pH 4.0, 20 degrees C, and biosorbent dosage of 2.0 degrees g.dm(-3). The Langmuir adsorption model matched very well the adsorption equilibrium data in the studied conditions. The kinetic data were found to follow the pseudo-second order model. The negative values of Delta H degrees and Delta G degrees revealed the exothermic nature and the feasibility of adsorption. Biotechnol. & Biotechnol. Eq. 2012, 26(6), 3365-3370
引用
收藏
页码：3365 / 3370
页数：6
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