| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of suppressing sticking of radioactive nuclides on an atomic power plant constitution member that can further reduce the radioactive nuclides sticking on an atomic power plant constitution member.SOLUTION: A BWR plant is activated (S1). Hydrogen which is a reductant is injected into water supply piping of the BWR plant from a reductant injection device connected to the water supplying piping (S2). This hydrogen is injected into furnace water in an RPV. The injected hydrogen reacts with an oxidizing chemical species (such as hydrogen peroxide) included in the furnace water, and reduces the density of the oxidizing chemical species in the furnace water. Thus, a corrosion potential of recirculation system piping connected to the RPV is reduced. The water supply piping is injected with solution containing platinum ions (S3). Platinum is stuck on the inner face of the recirculation system piping. After that, solution containing Ni ions is injected into the water supply piping (S4), and supplied into the RPV. The furnace water containing Ni ions is brought into contact with the inner face of the recirculation system piping, and Ni is stuck on the inner surface.SELECTED DRAWING: Figure 1 |
