Abstract
| Language | English |
|---|---|
| Pages | 807-811 |
| Journal | Applied Microbiology and Biotechnology |
| Volume | 42 |
| Issue number | 5 |
| Publication status | Published - Jan 1995 |
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STUDIES ON THE BIOSORPTION OF URANIUM BY TALAROMYCES-EMERSONII CBS-814.70 BIOMASS. / BENGTSSON, L; JOHANSSON, B; HACKETT, TJ; MCHALE, L; MCHALE, AP.
In: Applied Microbiology and Biotechnology, Vol. 42, No. 5, 01.1995, p. 807-811.Research output: Contribution to journal › Article
TY - JOUR
T1 - STUDIES ON THE BIOSORPTION OF URANIUM BY TALAROMYCES-EMERSONII CBS-814.70 BIOMASS
AU - BENGTSSON, L
AU - JOHANSSON, B
AU - HACKETT, TJ
AU - MCHALE, L
AU - MCHALE, AP
PY - 1995/1
Y1 - 1995/1
N2 - Residual biomass, produced by the thermophilic fungus, Talaromyces emersonii CBS814.70, following growth on glucose-containing media, was examined for its ability to take up uranium from aqueous solution. It was found that the biomass had a relatively high observed biosorption capacity for the uranium (280 mg/g dry weight biomass). The calculated maximum biosorption capacity obtained by fitting the data to a Langmuir model was calculated to be 323 mg uranium/g dry weight biomass. Pretreatment of the biomass with either dilute HCl or NaOH brought about a significant decrease in biosorptive capacity for uranium. Studies on the effects of variation in temperature on the biosorptive capacity demonstrated no significant change in binding between 20 degrees C and 60 degrees C. However, a significant decrease in biosorptive capacity was observed at 5 degrees C. Binding of uranium to the biomass at all temperatures reached equilibrium within 2 min. While the routine binding assays were performed at pH 5.0, adjustment of the pH to 3.0 gave rise to a significant decrease in biosorption capacity by the biomass. The biosorptive capacity of the biomass for uranium was increased when extraction from solution in sea-water was examined.
AB - Residual biomass, produced by the thermophilic fungus, Talaromyces emersonii CBS814.70, following growth on glucose-containing media, was examined for its ability to take up uranium from aqueous solution. It was found that the biomass had a relatively high observed biosorption capacity for the uranium (280 mg/g dry weight biomass). The calculated maximum biosorption capacity obtained by fitting the data to a Langmuir model was calculated to be 323 mg uranium/g dry weight biomass. Pretreatment of the biomass with either dilute HCl or NaOH brought about a significant decrease in biosorptive capacity for uranium. Studies on the effects of variation in temperature on the biosorptive capacity demonstrated no significant change in binding between 20 degrees C and 60 degrees C. However, a significant decrease in biosorptive capacity was observed at 5 degrees C. Binding of uranium to the biomass at all temperatures reached equilibrium within 2 min. While the routine binding assays were performed at pH 5.0, adjustment of the pH to 3.0 gave rise to a significant decrease in biosorption capacity by the biomass. The biosorptive capacity of the biomass for uranium was increased when extraction from solution in sea-water was examined.
M3 - Article
VL - 42
SP - 807
EP - 811
JO - Applied Microbiology and Biotechnology
T2 - Applied Microbiology and Biotechnology
JF - Applied Microbiology and Biotechnology
SN - 0175-7598
IS - 5
ER -