Patent ID: 6436025
Filing Date: 2002-08-20
Classification: C04B,G21F,Y02W

Abstract:
A method for co-solidifying sulfate solution and spent ionexchange resins, comprising the steps of:converting the sodium sulfate solution into a slurry of sodium hydroxide and barium sulfate; removing water from the slurry by evaporation; mixing the slurry with the ion-exchange resins to form mixed wastes; and homogeneously mixing a powdery solidification agent prepared from cement, pozzolanic materials and at least one species of oxides or salts of divalent metals into the mixed wastes to form a mixture of mixed wastes and solidification agent and leaving the mixture of mixed wastes and solidification agent for setting and hardening; wherein after the removal of water, water content of the slurrv is less than 50%.