Kinetic modeling for the biosorption of copper by pretreated Aspergillus niger biomass
DSpace at IIT Bombay
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Title |
Kinetic modeling for the biosorption of copper by pretreated Aspergillus niger biomass
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Creator |
MUKHOPADHYAY, MAUSUMI
NORONHA, SANTOSH SURAISHKUMAR, GK |
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Subject |
adsorption
biomass computer simulation mathematical models |
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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.
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Publisher |
Elsevier
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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 |
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Type |
Article
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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 |
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Language |
en
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