The invention discloses an ultrasonic
electrolysis based automatic decontamination
system for removing radioactive surface
contamination. According to electrochemical principles, an object to be decontaminated is taken as an
anode, the wall of a first decontamination pit is taken as a
cathode, contaminant is dissolved uniformly by the aid of chemical decontamination solution,
contamination nuclide is dissolved in the decontamination solution, then ultrasonic decontamination is carried out repeatedly; and further, the object is heated and soaked and finally is sprayed and then dried by a spraying and
drying measurement device; after radioactive surface
contamination index of the object to be decontaminated is detected, whether the object is needed to be decontaminated again or not is determined; the decontamination work is finished until the surface of the object to be decontaminated reaches the radioactive surface
contamination control index. The ultrasonic
electrolysis based automatic decontamination
system realizes surface decontamination, automatic
drying, online monitoring, conveying and recovering of the object to be decontaminated, and has effect of reducing dispersion of
radioactive contamination. Besides, emission of
radioactive waste liquid is reduced by reuse of the decontamination solution, work efficiency is improved, labor intensity of working personal is reduced, and
exposure dose of the working personal is lowered.