Using mixed bed ion exchange resins in the MARS nuclear power plant

被引：0

作者：

Ceccarelli, Enrico ^{[1
]}

Rinaldi, Gilberto ^{[2
]}

Cumo, Maurizio ^{[1
]}

Naviglio, Antonio ^{[2
]}

机构：

[1] Department of Nuclear Engineering and Energy Conversion, University of Rome La Sapienza, Italy

[2] Department of Chemical Engineering, University of Rome La Sapienza, Italy

来源：

Radwaste Solutions | 2008年 / 15卷 / 04期

关键词：

Ion exchange - Ion exchange resins - Chemicals removal (water treatment) - Ions - Nuclear fuels - Nuclear power plants;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The primary coolant cleaning system (CCS) is the most likely solution to attain the need for an alternative deboration process that can increase the length of the fuel cycle and reduce the workload on the radwaste system. The purification is carried out by means of a mixed bed ion exchange resin, PUROLITE NRW 37 and a membrane fiber filter. Near the end of the cycle, when the boron letdown flow rate increases too much, the boron dilution is fulfilled by diverting a small percentage of the CCS stream onto the fresh backup ion bed. PUROLITE NRW 37 is a polystyrene gel crosslinked with divinylbenzene, with sulfonic acid and quaternary ammonium functional groups. The boron retention capacity obtained for the PUROLITE NRW 37 mixed ion exchange granular resin is useful in the MARS NPP to lower the amount of primary water to be treated in the radwaste treatment system.

引用

页码：45 / 49