EQUILIBRIUM, KINETIC, AND THERMODYNAMIC STUDIES OF THE BIOSORPTION OF Mn(II) IONS FROM AQUEOUS SOLUTION BY RAW AND ACID-TREATED CORNCOB BIOMASS

被引：0
|
作者：
Adeogun, Abideen Idowu [1 ]
Ofudje, Andrew E. [2 ]
Idowu, Mopelola [3 ]
Kareem, Sarafadeen O. [4 ]
机构：
[1] Obafemi Awolowo Univ, Dept Chem, Ife, Nigeria
[2] Adegbenro ICT Polytech, Dept Sci Lab Technol, Itori Ewekoro, Ogun State, Nigeria
[3] Univ Agr, Dept Chem, Abeokuta, Nigeria
[4] Univ Agr, Dept Microbiol, Abeokuta, Nigeria
来源：
BIORESOURCES | 2011年 / 6卷 / 04期
关键词：
Biosorbent; Manganese; Kinetics; Pseudo-first order; Corncob; ACTIVATED CARBON; REMOVAL; ADSORPTION; MANGANESE; CHROMIUM; BIOSORBENT; BAGASSE; METALS; NICKEL; SHELLS;
D O I：
暂无
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
Biosorption was carried out in a batch process to test the suitability of corncob for the removal of manganese ion (Mn(II)) from aqueous solution. The amount of metal ions removed from solution depended on the metal ion-substrate contact time, ion concentration, temperature, and pH. The adsorption capacity of the biosorbent from corncob was also enhanced by treatment with acid. Kinetic modeling of the data obtained from the study showed that the biosorption of Mn(II) ions by the untreated and acid-treated corncob followed the Largergren pseudo-first order model. The adsorption capacity of the raw biomass was found to be 6.54 mg/g, while acid-treated biomass showed an adsorption capacity of 7.87 mg/g. The data obtained from this study fitted well with the Freundlich and Langmuir adsorption isotherms.
引用
收藏
页码：4117 / 4134
页数：18
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