压水堆核电厂模拟含硼废液反渗透浓缩试验研究

Study on Concentrating Treatment Test of Simulated Radioactive Wastewater Containing Boron by Reverse Osmosis Membrane in PWR NPP

摘要: 采用中试规模反渗透试验装置，在浓水全回流的运行模式下，研究了反渗透系统在压水堆核电厂放射性废液处理中的应用。重点考察了该系统对模拟废液中硼的截留效果，并进一步研究了反渗透水处理工艺对模拟放射性核素的截留效果。结果表明，海水型聚酰胺复合膜对原水中硼的截留率可达83.3%以上，并将原水中硼浓度浓缩至10 000 mg/L以上。试验结果同时表明，上述试验装置对于核素如钴和铯的截留率可达97.9%以上。

Abstract: The reverse osmosis membrane equipment in PWR NPP was employed to investigate the application of pilot scale system in the radioactive wastewater treatment at the full recirculation operation.The removal performance of the equipment for the boron and the radioactivity nuclide were studied, respectively. The experimental results show that the removal efficiency of the aromatic polyamide composite reverse osmosis membrane for boron is over 83.3% and the concentration of boron in concentrate is over 10 000 mg/L. The experimental results also show that the removal efficiency of two nuclides including cobalt and cesium is over 97.9%.