Page 25 - PR 2014 2016 03 Applications of Ionizing Radiations

Applications of Ionizing Radiations | Progress Report 67

removal was around 80%.

Figure 39. The image by electron microscopy scan
coupled to an energy dispersive spectrometer
shows cesium ions on the graphene oxide surface.

Coconut fibers in raw and treated
forms for Sr removal from
+2
radioactive liquid wastes

90 Sr, a radioactive isotope of strontium, is one
of the fission products and generally present
in the radioactive waste generated by nuclear
power plants. The biosorption is one the most
effective technique to eliminate cations from
aqueous solution. This procedure has the ad-
vantage to remove the metals in low concen-
tration by means of renewable sources. The
removal efficiency of strontium ions by raw
and treated coconut fibers was assessed and
reached up to 45 and 95% respectively in an
aqueous solution.

Figure 40. The image by
electron microscopy scan
coupled to an energy
dispersive spectrometer
shows strontium ions
on the treated coconut
fibers surface after
the bioadsorption
experiments