公开(公告)号：US10553324B2

公开(公告)日：2020-02-04

申请号：US16076523

申请日：2017-05-09

Applicant: Secretary, Department of Atomic Energy

Inventor： Jayesh Gopaldas Shah ,  Sumit Pahan ,  Arvind Ananthanarayanan

IPC: G21F9/12 ,  C22C38/00 ,  G21F9/16 ,  G21F9/30 ,  C22C38/04 ,  C22C38/02 ,  C22C38/44

Abstract: Provided herein is a process for removal of 99Tc from liquid intermediate level waste (ILW) of spent fuel reprocessing including the steps of: adding HNO3 to ILW till the pH is 2 to destroy the carbonates, transferring the ILW derived of carbonates to a tank containing mild steel wool (msw) for 4 to 48 hrs, subjecting the ILW and MS Wool to the step of separation, discharging the supernatant solution free of 99Tc and retaining the corrosion products (goethite(FeOOH/magnetite), subjecting the said corrosion products to the step of vitrification, and storing the said vitrified 99Tc bearing waste.