METHOD AND DEVICE FOR DISPOSING NUCLEAR WASTE USING DEEP GEOLOGICAL REPOSITORY

摘要

Provided are a method and device for disposing nuclear waste using a deep geological repository, relating to nuclear waste disposal methods and apparatuses. The method and device address the existing problems of high nuclear waste disposal costs and enormous health hazards to disposal workers. The device consists of: a raw material conveyor (1), a raw material mixer (2), a liquid waste conveying pipeline (3), an additive tank (4), a powder waste conveyor (5), an output pump (6), a liquid supply pump (7), a liquid supply manifold (8), an output manifold (9), a mixed liquid conveying pipeline (10), a high-pressure injection pump (11), a high-pressure pipeline (12), and a wellhead sealing device (13). The method comprises: 1) drilling a well; 2) forming a fracture in a granite stratum; 3) preparing a raw material; and 4) injecting, by using a disposal device, a sand-carrying feed liquid from a high-pressure injection pump into the fracture of the underground granite stratum, so as to perform solidification. The method has advantages of a low disposal cost, high disposal efficiency, a simple device structure, high practicability, safety and reliability, and an effective reduction in nuclear waste contamination and hazards to the environment.