[en] The silver mediated electrochemical oxidation (Ag/MEO) process with the ultrasound agitation has been developed for the purpose of the mineralization of organic wastes containing transuranium nuclides (TRU wastes) at the nuclear fuel reprocessing process. In the Ag/MEO process, organic solvents are decomposed by divalent silver cations under the relatively low temperature and the ambient pressure condition. The ultrasound agitation is effective in mixing the electrolytic solutions and the organic solvents, and is expected to promote the oxidation of the organic solvents. Therefore, the Ag/MEO process with the ultrasound agitation could be a candidate for the treatment of organic solvents. Destruction tests of tributylphosphate and dodecane by the Ag/MEO process were conducted to optimize some treatment conditions about electrolytic currents, solution temperatures, nitric acid concentrations and ultrasound intensities. Under optimized conditions, the destruction tests of kerosene and N,N,N',N'-tetraoctyl-3-oxapentane-1,5-diamide (TODGA) were carried out. It was confirmed that the Ag/MEO process is effective for the mineralization of these organic solvents. (author)