Patent ID: 6875323

Claim:
A decontamination system for removing an oxide film containing radioactive nuclides and adhering to a contaminated object as a component of a radioactive material handling facility, said decontamination system comprising: a decontaminating liquid circulating system provided with a first pump for circulating a decontaminating liquid through the contaminated object; an ozone supply system for supplying ozone to the decontaminating liquid circulating in the decontaminating liquid circulating system; a pH adjusting agent supply device for supplying a pH adjusting agent to the decontaminating liquid circulating in the decontaminating system; an organic acid supplying device for supplying an organic acid as a reducing agent to the decontaminating liquid circulating in the decontaminating liquid circulating system; an irradiating device for irradiating the decontaminating liquid circulating in the decontaminating liquid circulating system with light; and an ion-exchange device for removing ions contained in the decontaminating liquid circulating in the decontaminating liquid circulating system.