EFFECT ON MICROBIAL PRODUCTS ON CAESIUM ELUTION BEHAVIOUR FROM CLAY MINERALS.
Radiat Prot Dosimetry
; 184(3-4): 385-387, 2019 Oct 01.
Article
em En
| MEDLINE
| ID: mdl-31038705
ABSTRACT
Some microorganisms in the environment make siderophores, which are low molecular chelators, to take up minerals from soil. Eleven bacteria were separated from the root of white clover by chlome azrol S (CAS) assay. Each bacterium was incubated in casamino acid (CAA) culture, and siderophores in CAA culture were purified. These extractions were applied to biotite or vermiculite spiked with Cs. From each clay mineral, 57.1-72.8% (5100 ppm), 55.6-63.8% (920 ppm) and 48.6-54.3% (2300 ppm), 31.6-34.4% (520 ppm) was eluted, respectively. To understand elution behaviour, Cs desorption ratio of each clay was measured every 30 min. The results indicate Cs elution was occurred quickly.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Microbiologia do Solo
/
Poluentes Radioativos do Solo
/
Bactérias
/
Argila
/
Radioisótopos de Césio
/
Minerais
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article