So what exactly is nuclear waste? What is nuclear waste definition? In short, anything that releases radiation that is not wanted. This definition varies depending on the country. However, in general, it falls under one of the following classifications. Very Low-Level Waste, Low-Level Waste, Intermediate Level Waste, and High-Level Waste.
Nuclear graphite is Intermediate Level Waste under most nations’ guidelines. The significance of this is storage cost. Intermediate Level Waste costs approximately US$18.6k per cubic meter to store depending on the country. Therefore, to store the estimated 112,646 cubic meters of radioactive graphite currently present in the world. It would cost the taxpayers about US$2.095 billion.