Theoretical modeling of Cu sorption from nuclear effluent on PHA resin with experimental validation

• Published in: Journal of radioanalytical and nuclear chemistry Vol. 323; no. 2; p. 795
• Main Authors: Singha, Mousumi, Pal, Sangita, Chowdhury, Sujit, Hareendran, K. N, Sahu, M. L
• Format: Journal Article
• Language: English
• Published: Springer 01.02.2020
• Subjects: Nuclear energy
• ISSN: 0236-5731; 1588-2780
• DOI: 10.1007/s10967-019-07000-y

The sorption capacity of an in-house synthesized novel resin Polyhydraxamic acid(PHA) towards Cu(II), Sr(II), Gd(III), U(VI) ions was studied using batch sorption experiments and was found to be following the order Sr(II) < Cu(II) < U(VI) < Gd(III). The monolayer uptake value (q.sub.m) for Langmuir model was found to be 11.36 mg Sr(II)/g of PHA, 91 mg Cu(II)/g of PHA, 111 mg U(VI)/g of PHA and 125 mg Gd(III)/g of PHA. The sorption dynamics followed pseudo second order kinetics. The pseudo second order rate constant (K.sub.2) values were found to be 0.02 g of PHA mg of Sr.sup.-1 min.sup.-1, 6.09 x 10.sup.-3 g of PHA mg of Cu.sup.-1 min.sup.-1, 9.7 x 10.sup.-5 g of PHA mg of Gd.sup.-1 min.sup.-1, 0.018 g of PHA mg of U.sup.-1 min.sup.-1.