[en] Reuse of liquid effluents in inland nuclear power plants (NPPs) and discharge reduction of liquid effluents to environment is an effective way to protect water resources, and it is a necessary choice for inland NPPs to meet energy development plan and major safety requirements of site selection. The reusing feasibility of liquid effluent is studied based on design and operation experiences of NPPs. The results show that the recycling of treated laundry liquid in hot laundry and reusing of floor drains in reactor cavity and spent fuel pit cooling system are practicable, and can reduce the discharge of liquid effluents to environment by 8400 m³ (Two units per year) accounting for the reduction of 51.8% of its total amount, and the reduced discharge of radioactivity in liquid effluents to environment by 4.8% 10⁵ Bq accounting for the reduction of 36.9% of its total radioisotope amount. (authors)

[en] 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 10000 mg/L. The experimental results also show that the removal efficiency of two nuclides including cobalt and cesium is over 97.9%. (authors)