2002•Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and AtomsRequires access
Biosorption of ~(241)Am by Microorganism
Yang Yuan
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Abstract
The biosorption of 241 Am on A.niger, R.arrihizus and Candida albicams from aqueous solution, and the effects of the experimental conditions on the biosorption are investigated by the batch technique. The experimental results show that all the microorganism above are very efficient as the sorbent. The biosorption equilibrium time is 2 h and the optimum pH ranges 1～3. No significant differences on 241 Am biosorption are observed at the temperature of 15～45 ℃, or in the presence and absence of Au 3+ or Ag +. The relationship between concentrations of 241 Am in aqueous solutions and adsorption capacities of 241 Am can be described by the Freundlich adsorption equation on A. niger and R.arrihizus,whileas it can be done by the Langmuir adsorption equation on Candida albicams.