Continuous fixed bed biosorption of Cu2+ ions: application of a simple two parameter mathematical model
✍ Scribed by Joseph M Brady; John M Tobin; Jean-Claude Roux
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1999
- Tongue
- English
- Weight
- 227 KB
- Volume
- 74
- Category
- Article
- ISSN
- 0268-2575
No coin nor oath required. For personal study only.
✦ Synopsis
Biomass from two fungi of the Mucorales order, laboratory cultured and immobilised Rhizopus arrhizus, and industrial waste Mucor miehei, was tested for capacity to adsorb copper from solution in batch and continuous-ýow column systems. Maximum uptake levels were c 400 and 300 mmol g-1 (dry weight) respectively. Immobilisation of Rhizopus arrhizus in polyvinyl formal to cell loadings of 60% (w/w) did not diminish metal uptake levels. In continuous-ýow columns both biosorbents adsorbed copper to levels equal or approaching the batch uptake values. Column breakthrough curves were ütted to a two parameter model and each of the parameters, r and were t 0 , linearly correlated with column operating parameters. Predicted breakthrough curves agreed closely with experimental values.