TMI-2 Sludge Separation and Packaging Analyses and Conceptual Design

摘要

A study was conducted by Battelle, Pacific Northwest Laboratories (BNW) for the Electric Power Research Institute (EPRI) to evaluate cost-effective technologies for radioactive waste (radwaste) sludge recovery and packaging at utility power reac¬tors. As a frame of reference, a process technology using the auxiliary building sump (ABS) and sump tank (ABT) sludges at GPU Nuclear Corporation's Three Mile Island-Unit 2 (TMI-2) was selected for conceptual design. Sludge removal from the sump and sump tank was not included in the study. Based on criteria provided by TMI-2 staff and used by nuclear utilities in general, sedimentation followed by vendor cement solidification of the sludge was recommended from the nine conceptual approaches evaluated. A conceptual design and equipment cost estimate were provided for the recommended system. Sludge characterization data and laboratory process development data are provided to form a basis for process design.