Feasibility of Materials for Ultrafiltration System in a SCWR

Abstract

One of the most important features in future SCWRs will be the coolant purification system, which removes impurities, particles, and radioactive materials as well as aids in the control of water chemistry. Several different options have been explored as ways to provide the high temperature and pressure purification that may be required. Different filter materials (stainless steel, chromium oxide, Ni-based alloys) have been tested in a dead-end configuration. This paper describes the preliminary results with SS316L ultrafiltration membranes. The mechanical integrity and particle removal efficiency of these different materials were examined and the results are presented here.