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Biosorption of precious metals

Paper ID Volume ID Publish Year Pages File Format Full-Text
14834 1258 2007 8 PDF Available
Title
Biosorption of precious metals
Abstract

Biosorption has emerged as a low-cost and often low-tech option for removal or recovery of base metals from aqueous wastes. The conditions under which precious metals such as gold, platinum and palladium are sorbed by biomass are often very different to those under which base metals are sorbed. This, coupled with the increasingly high demand for precious metals, drives the increase in research into efficient recovery of precious metal ions from all waste material, especially refining wastewaters. Common biosorbents for precious metal ions include various derivatives of chitosan, as well as other compounds with relatively high surface amine functional group content. This is generally due to the ability of the positively charged amine groups to attract anionic precious metal ions at low pH. Recent research regarding the biosorption of some precious metals is reviewed here, with emphasis on the effects of the biosorption environment and the biosorption mechanisms identified.

Keywords
Biosorption; pH effects; Biosorption mechanism; Gold; Platinum; Palladium
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Biosorption of precious metals
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biotechnology Advances - Volume 25, Issue 3, May–June 2007, Pages 264–271
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
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us