Biosorption of heavy metal ions on Rhodobacter sphaeroides and Alcaligenes eutrophus H16
Journal Article
·
· Journal of Colloid and Interface Science
- Hokkaido Univ., Hakodate (Japan). Dept. of Marine Bioresources Chemistry
A fundamental study of the application of bacteria to the recovery of toxic heavy metals from aqueous environments was carried out. The biosorption characteristics of cadmium and lead ions were determined with purple nonsulfur bacteria, Rhodobacter sphaeroides and hydrogen bacteria, Alcaligenes eutrophus H16 that were inactivated by steam sterilization. A simplified version of the metal binding model proposed by Plette et al. was used for the description of meal binding data. The results showed that the biosorption of bivalent metal ions to whole cell bodies of the bacteria was due to monodentate binding to two different types of acidic sites: carboxilic and phosphatic-type sites. The number of metal binding sites of A. eutrophus was 2.4-fold larger than that of R. sphaeroides.
- OSTI ID:
- 599747
- Journal Information:
- Journal of Colloid and Interface Science, Journal Name: Journal of Colloid and Interface Science Journal Issue: 2 Vol. 197; ISSN 0021-9797; ISSN JCISA5
- Country of Publication:
- United States
- Language:
- English
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