Wasteform for Low Level Waste

In the case of LLW / ILW containing various materials, a sealant suitable for sealing the waste and functioning as a substrate for packaging is needed. The choice of sealant will depend not only on the physical and chemical characteristics of the waste but also on other factors to consider. First, acceptance criteria for radioactive immobilization; waste form must be able to physically immobilize radioactivity before GDF is closed. It may be advantageous if the waste form still contributes to the suppression of radionuclides at the initial stage after closure.

In the next phase, we examined the extremes of the cell field waste inventory. By evaluating the effect of different particle size, carbonate content, organic matter content, active metal content and total waste load, the same process parameters can be used to determine the appropriate range of sludge and slurry waste stream Waste can be generated. Finally, this project produces and analyzes uranium-doped HIP samples. The sample is based on the Magnox sludge composition and will characterize the behavior of the radioactive material during processing. This provides information on the form of uranium content in the HIP process, waste quality and technical feasibility.

Radioactive waste is classified as low level or high level waste. Radioactivity in these wastes varies from just above the natural background level (such as uranium tailings) to high levels such as used (waste) nuclear reactor fuel and reactor components. Radioactivity of nuclear waste decreases through a process called radioactive decay. The time required to reduce the radioactivity of radioactive material to half the original level is called the radioactive half-life. Radioactive waste with a short half life is usually temporarily stored before disposal and reduces the potential radiation dose of workers handling and transporting waste. The storage system also reduces the level of radiation at the processing location