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Kinetic modeling for the biosorption of copper by pretreated Aspergillus niger biomass

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Title Kinetic modeling for the biosorption of copper by pretreated Aspergillus niger biomass
 
Creator MUKHOPADHYAY, MAUSUMI
NORONHA, SANTOSH
SURAISHKUMAR, GK
 
Subject adsorption
biomass
computer simulation
mathematical models
 
Description In this present work, a kinetic model for biosorption of copper was developed considering the possibility of different forms of functional groups being present on the surface of the biomass prepared from Aspergillus niger. Results showed that metal uptake by A. niger was a mass transfer driven process, requiring only 30 min to achieve 70% adsorption efficiency. Copper sorption by A. niger was influenced by the biomass dose, initial metal ion concentration, and pH of the solution. The Langmuir and Freundlich adsorption isotherms were used to describe the behavior of the system at different pH. The retention capacity of the biomass was determined at pH 6.0 to be equal to 23.62 mg/g of biomass. The pretreatment with formalin improved the uptake of metal ion.
 
Publisher Elsevier
 
Date 2009-03-17T10:03:36Z
2011-11-25T19:10:45Z
2011-12-26T13:07:26Z
2011-12-27T05:55:29Z
2009-03-17T10:03:36Z
2011-11-25T19:10:45Z
2011-12-26T13:07:26Z
2011-12-27T05:55:29Z
2007
 
Type Article
 
Identifier Bioresource Technology 98(9), 1781-1787
0960-8524
http://dx.doi.org/10.1016/j.biortech.2006.06.025
http://hdl.handle.net/10054/947
http://dspace.library.iitb.ac.in/xmlui/handle/10054/947
 
Language en