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Protein biomass as new adsorbent for precious metal ions

Goto, Masahiro (2006) Protein biomass as new adsorbent for precious metal ions. In: 1st International Conference on Natural Resources Engineering & Technology 2006, 24-25th July 2006, Putrajaya, Malaysia.

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Abstract

Use of biomass as alternatives to petrochemicals has attracted a broad range of scientific and industrial interests. We propose here a novel environmentally-friendly recycle system for precious metal ions such as gold and platinum ions using protein-rich biomass. My keynote lecture is composed of three pieces; (1) selective adsorption of precious metal ions onto proteins, (2) the mechanism study of the metal ion adsorption, and (3) demonstration of selective recovery of precious metal ions from actual copper refining solution. A biomass was found to have an extremely high loading potential 250g/kg-biomass for gold ions. This article describes not only scientific investigations but also practicality of the strategy. The recycle system proposed here will enable selective recovery of precious metal ions from industrial wastewater without extra emissions of CO2.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Biomass; metal recycle; bioadsorption; protein reuse; precious metal group; PGM
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:355
Deposited By: Pn Khairulbahiyah Yaakub
Deposited On:15 Feb 2007 09:12
Last Modified:01 Jun 2010 02:43

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