Speaker
Description
Abstract: Radioactive materials contribute effectively to economic development and human well-being. Radioactive materials and radioactivity sources have widespread use in many areas of life such as industry, medicine, and electricity generation, which has led to the development of their uses, which poses ongoing challenges to ensure the maintenance of an appropriate balance between risks and benefits for both nuclear workers and community. Decommissioning is the ultimate stage of any nuclear or radiological facility's lifetime. The increasing number of facilities that will be decommissioned next few decades poses substantial challenges in terms of infrastructure and expertise necessary to permit their deactivation. Some systems must be in good conditions related to safety and sustainability from pre-operation till the last stage of decommissioning like cranes, casks, tractors and ventilation system. Therefore, workers and the community must obtain adequate radiation protection. Ventilation system by using graded approach can contribute to achieve these requirements. this paper is aim to raise awareness of the importance of addressing decommissioning as part of a sustainable future, to support the most efficient use of the resources required for implementation, to provide relevant knowledge and inputs for new facilities under design or construction. Also it provides a practical example that gained from operating experience of how to use the grading approach to optimize the ventilation system, particularly the fresh air supply to the fuel cycle facility (Fuel Manufacturing Pilot Plant that one of three facilities of Egyptian Second Reactor Complex). It was found that the Fuel Manufacturing Pilot Plant is safe design, safe installation, safe operation, and also safe decommissioning in the future due to the use of a graded approach on ventilation system. Radiological risk analysis was investigated with no hazards on the workers and community.
