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Entrapment of fungal hyphae in structural fibrous network of papaya wood to produce a unique biosorbent for the removal of heavy metals

Paper ID Volume ID Publish Year Pages File Format Full-Text
18656 42732 2006 6 PDF Available
Title
Entrapment of fungal hyphae in structural fibrous network of papaya wood to produce a unique biosorbent for the removal of heavy metals
Abstract

A unique biosorbent was developed by entrapping fungal hyphae in structural fibrous network of papaya wood (SFNPW) and successfully used for the removal of Zn(II) from aqueous solution. The SFNPW-immobilized fungal biosorbent removed Zn(II) rapidly and efficiently with maximum metal removal capacity of 66.17 mg/g dry biomass at equilibrium, 41.93% higher than the amount of Zn(II) removed by free biomass (46.62 mg/g) under the identical conditions. Equilibrium was established in 1 h and biosorption was well defined by Langmuir isotherm model. SFNPW-immobilized fungal biosorbent was regenerated by washing with 50 mM HCl, with upto 99% recovery of the sorbed metal ions and the regenerated system was reused in five adsorption–desorption cycles without any significant loss in its biosorption capacity. The efficient metal removing ability of this unique biosorbent system, low cost of SFNPW and simplicity of the immobilization technique used to produce the SFNPW-immobilized fungal biosorbent system indicate the potential application of this biosorbent for the treatment of wastewaters containing heavy metals.

Keywords
Biosorption; Immobilization; Papaya wood; Phanerochaete chrysosporium; Carica papaya; Zinc(II)
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Entrapment of fungal hyphae in structural fibrous network of papaya wood to produce a unique biosorbent for the removal of heavy metals
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Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 39, Issue 5, 4 September 2006, Pages 996–1001
Authors
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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
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Full-text PDF Download
Online Support
Any Questions? feel free to contact us