Biosorption of226Ra in high level natural radiation areas of Ramsar, Iran
| Autor: | N. Fallahian, J. Amidi, D. Satvatmanesh, F. Siavoshi, M. M. Beitollahi |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Veterinary medicine
biology Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Corynebacterium Biosorption chemistry.chemical_element Biomass Chryseobacterium biology.organism_classification Pollution Analytical Chemistry Citrobacter freundii Radium Nuclear Energy and Engineering chemistry Chromobacterium Radiology Nuclear Medicine and imaging Incubation Spectroscopy |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 258:483-486 |
| ISSN: | 0236-5731 |
| DOI: | 10.1023/b:jrnc.0000011741.66761.b1 |
| Popis: | Bacterial strains isolated from hot springs and soil of high level natural radiation areas of Ramsar, a northern coastal city of Iran, have been studied for their 226Ra sorption ability from aqueous solutions. Gamma-spectrometry showed that the uptake values of strains A-C, T-A, A-E and CH-G at a radioactivity level of 4.3±0.2 Bq·mlℒ1 were 202±53, 171±49, 123±11 and 53±6 Bq·gℒ1, respectively. Biosorption was the major mechanism involved in 226Ra uptake and was not affected by 2,4-dinitrophenol (DNP) or incubation at 4°C. There was an inverse relationship between the rapid radium uptake value and biomass weight in the strains A-C and A-E. Strain A-C was identified as Citrobacter freundii and strains T-A, A-E and CH-G belonged to the genera Corynebacterium, Chromobacterium and Chryseobacterium, respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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