fulltext.study @t Gmail

Biosorption of Pb(II) and Cu(II) from aqueous solutions by pretreated biomass of Neurospora crassa

Paper ID Volume ID Publish Year Pages File Format Full-Text
36514 45134 2005 9 PDF Available
Title
Biosorption of Pb(II) and Cu(II) from aqueous solutions by pretreated biomass of Neurospora crassa
Abstract

The sorption of Pb(II) and Cu(II) ions from aqueous solutions by raw and pretreated Neurospora crassa fungal biomass was investigated in the batch mode. The influence of solution pH, equilibrium time and initial metal ion concentration using dried N. crassa cells as well as pretreatment on the sorption capacity of the biomass at optimum conditions were studied. The optimum conditions were pH 4.0 for Pb(II) and 5.0 for Cu(II) ions at initial metal ion concentration of 200 mg l−1 with equilibrium time of 15 min for both metal ions. Dried fungal cells exhibited the maximum sorption capacity (49.06 mg g−1) for Pb(II) ions while detergent treated cells showed the maximum sorption capacity (12.28 mg g−1) for Cu(II) ions. The experimental equilibrium data were evaluated by Freundlich and Langmuir isotherm models. Competitive biosorption of these metals was investigated in terms of sorption capacity and found that the biosorption capacity of biomass decreased with increasing the competing metal ion concentration. The involvement of functional groups on the surface of dried biomass in biosorption process is also discussed.

Keywords
Neurospora crassa; Pb(II); Cu(II); Adsorption isotherms; Pretreatment
First Page Preview
Biosorption of Pb(II) and Cu(II) from aqueous solutions by pretreated biomass of Neurospora crassa
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 40, Issue 11, November 2005, Pages 3550–3558
Authors
, , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us