[en] This paper deals with the problems presented during the comminnioning of the solid waste processing system of Angra 1. Based on the obtained results, some modifications have been introduced in order to get a better final product quality. Such modifications are described and the results compared with those originally obtained. The items related to the preliminary acceptance criteria for radioactive wastes, established by the Brazilian National Nuclear Energy Commission, are discussed, taking into account the final disposal and transportation problems. Considering the final product quality generated in Angra 1, the utility (FURNAS - Centrais Eletricas S.A.) has taken the necessary measures for acquiring a new waste immobilization unit, in order to be in accordance with the mentioned acceptance criteria. The paper still presents the method for interim storage on site, the handling procedures for the encapsulated radwastes, as well as, data about the radioactive wastes volume generated, according to their characteristics. As results of the adopted measures, the implementation of wich has being closely followed by the Competent Authority, reasonable confidence is provided that the system should be able to generated a product with satisfactory properties. (Author)