Suppression of radionuclide deposition on nuclear power plant components

A method comprising:

• taking a nuclear power plant from a power-generating mode to a non-power-generating mode;
• after taking the plant to the non-power-generating mode, and while the nuclear plant is in the non-power-generating mode:
• providing a treatment solution comprising zinc within a portion of a first coolant loop of the nuclear plant,
• allowing the treatment solution to remain in the portion for a first treatment period, and
• removing the treatment solution from the portion of the first coolant loop, wherein said removing comprises transferring the solution from the portion of the first coolant loop to a portion of a second coolant loop of the nuclear plant;
• allowing the solution to remain in the portion of the second coolant loop for a second treatment period;
• removing the solution from the portion of the second coolant loop;
• and
• returning the plant to the power-generating mode,
• wherein the nuclear power plant comprises a reactor,
• wherein the first and second coolant loops are configured to each flow through the reactor,
• wherein the nuclear power plant comprises a first recirculation pump disposed in the first coolant loop for recirculating coolant through first coolant loop, and
• wherein the nuclear power plant comprises a second recirculation pump disposed in the second coolant loop for recirculating coolant through the second coolant loop.