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International Journal of Environment and Sustainability, 2016, 5(1): 71-75 75
Table 1:
Parameters of sorption isotherms of europium,
cerium and copper particles Fe2O3 and Fe3O4
Metal Fe2O3 А∞, R2, % Fe3O4 А∞, R2, %
K mg/g 89.85 K mg/g 92.97
21.3 0.024 19.7
Eu 0.007
Ce 0.346 9.2 94.83 0.162 7.5 90.52
Cu 0.029 15.7 94.12 0.039 11.66 93.57
At concentrations above 90 mg/l for the Eu (III) temperature. The higher the temperature, the
and 70 mg/l for Cu (II) adsorption excess is
associated with a different, more complex
mechanism.
The results of calculations by Langmuir's
method is shown in Table 1. As can be seen
from the data, the size of the sorption capacity Regardless of the deposition conditions form
Fe2O3 particles with 150 m2/g specific surface
for all investigated metals are higher than the
sorbents based on Fe3O4 with 130 m2/g specific
surface. The highest sorption capacity is
observed for the europium – 21.3 mg/g and
19.7 mg/g on the particles of Fe2O3 and Fe3O4,
respectively, and the lowest is observed for
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4. Conclusions
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