Decontamination of 137Cs,95Zr, 154Eu and 144Ce from aqueous solutions using polyacrylamide titanium tungstosilicate

Abstract

Polyacrylamide titanium tungstosilicate (PAM/TiWSi) composite was synthesised using a sol–gel process and characterized via FT-IR, SEM, XRD, and TGA methods. The effects of several factors on the adsorption of Cs+, Eu3+, Ce3+and Zr4+ have been studied, including contact duration, pH, temperature, and starting concentration. PAM/TiWSi sorption of Cs+, Eu3+, Ce3+and Zr4+ was studied in terms of isotherms and kinetics. The Freundlich model was better linked with isotherm data than the Langmuir model. Cs+, Eu3+, Ce3+and Zr4+ have maximum sorption capacities (Qmax) of 30.7, 26.6, 25,3 and 29.7 mg.g−1, respectively. Furthermore, the sorption process was found based on pseudo-second-order.

Elaboration and characterization of molybdenum titanium tungsto-phosphate towards the decontamination of radioactive liquid waste from 137 Cs and 85Sr

“…3 (b and c) and Table 2 . The new peak appears at 453–468 cm −1 which can be assigned to metal–oxygen bonds (Mahrous et al 2022c ). From Fig.…”

“…Lee et al, ( 2022 ) used a flocculation method based on an inorganic washing solution to remove Cs + and Sr 2+ from the soil, while co-precipitation was used by Sopapan et al, ( 2023 ) via the application of potassium ferrocyanide to remove 134,137 Cs from low and intermediate level liquid radioactive waste. Also, another advanced technology such as membrane separation, ion exchange, and adsorption has been carried out for the removal of cesium and strontium radionuclides (El-Nagaar et al 2012 ; El-Aryan et al 2014 ; Rizk and Hamed 2015 ; Li et al 2017 ; Nasseh et al 2017 ; Abdel-Galil et al 2018 , 2020 , 2021 ; Mahrous et al 2019 , 2022a , c ; Amesh et al 2020 ; Pham et al 2020 ; Akinhanmi et al 2020 ; Bediako et al 2020 ; Cheng et al 2020 ; Yang et al 2021 ; Abass et al 2022 ; Lee et al 2022 ; Patra et al 2022 ; Yao et al 2022 ; Șenilă et al 2023 ; Sopapan et al 2023 ) using organic, inorganic, or composite materials.…”

A prototype system for the removal of 137Cs from liquid radioactive waste using reverse osmosis membrane

“…Recently, there has been a global concern over radioactive pollution in water and the focus has shifted toward the development of advanced decontamination systems to overcome the issue (Munter 2013 ; Zeitoun 2011 ). Many conventional water treatment methods have been incorporated to treat water contaminated with heavy metals and radioisotopes such as solvent extraction, sorption, and ion exchange (El-Sadek et al 2021 ; Hassan et al 2019 ; Mahrous et al 2022 ; Mansy et al 2023 , 2017 ). There are some studies about the influence of conventional treatments applied at water treatment plants to reduce radioactivity (Arnal et al 2000 ; Baeza et al 2006 ; Commission 2002 ; Gäfvert et al 2002 ; Jiménez and De La Montaña, 2002 ; Montaña et al 2013 ; Munter 2013 ; Palomo et al 2010 ).…”

A prototype system for the removal of 137 Cs from liquid radioactive waste using reverse osmosis membrane

“…Recently, there has been a global concern over radioactive pollution in water and the focus is shifted toward the development of advanced decontamination systems to overcome the issue (Munter, 2013;Zeitoun, 2011). Many conventional water treatment methods have been incorporated to treat water contaminated with heavy metals and radioisotopes such as solvent extraction, sorption, and ion exchange (El-Sadek et al, 2021;Hassan et al, 2019;Mahrous et al, 2022cMahrous et al, , 2022bMahrous et al, , 2022aMansy et al, , 2017. There are some studies about the influence of conventional treatments applied at water treatment plants to reduce radioactivity (Arnal et al, 2000;Baeza et al, 2006;Commission, 2002;Gäfvert et al, 2002;Jiménez and De La Montaña Rufo, 2002;Montaña et al, 2013;Munter, 2013;Palomo et al, 2010).…”