Cesium Removal from Wastewater Using Banana Peel

The potential of banana peel (BP) on the cesium removal from aqueous solutions is study by using different design parameters by adsorption process. The design parameters studied to adsorb cesium using BP as an adsorbent material were initial concentration of cesium , absorbance material packing height which was BP, pH of cesium feed inlet, treatment time, feed flow rate and feed temperature, results show that the higher removal efficiency was 97.50 % for cesium from aquatic solution and this efficiency was decreased with increasing of initial concentration and flow rate while the removal efficiency increased with increasing pH, sorption media bed height and feeding temperature. By this way we can possess different benefits which are: remove the hazard and toxic cesium contaminated the water and get rid of waste BP.

PHYSICOCHEMICAL IN-SITU SYNTHESIS OF PRUSSIAN BLUE FOR CESIUM REMOVAL

Prussian blue (PB) has attracted substantial attention as a potential adsorbent for radionuclides due to its high water-insoluble characteristics. Here, PB-encapsulating activated carbon fibers (ACFs) obtained via a physicochemical in-situ synthesis were introduced for an effective cesium removal. ACFs were used as an anchor platform to hold PB within the pores. The physicochemical synthesis of PB (PB-ACF-B) was done by stirring ACFs in an iron chloride solution. Potassium ferrocyanate was injected during the stirring process. As the counterpart, powdered PB (PB-ACF-A) was prepared with a physical synthesis. Throughout the test, PB-ACF-B revealed a decrease in the specific surface characteristics compared to PB-ACF-A; however, it also experienced an increase in the 133Cs adsorption. In all the cases, the dosage of the absorbent and radionuclide was in positive correlation with the adsorption performance. Further, the amount of PB was found to be the key factor for the adsorption of 133Cs compared to the specific surface characteristics.