Results of Long-Term Deep Liquid Radioactive Waste Injection Site Operation at the Siberian Chemical Combine

Abstract

Publisher Summary This chapter focuses on the results of long-term deep liquid radioactive waste (LRW) injection site operation at the Siberian Chemical Combine. The underground repositories use the sand injection zones in the sedimentary cover of the West Siberian platform, which is sealed with aquiclude layers of argillaceous rocks. When the waste is injected into the injection zones, there is no excessive pressure buildup sufficient for a hydraulic rupture of the formation, or for a break in the integrity of the overlying aquicludes. No cone of elevated pressure developed in the overlying formations during site operation. The composition and volume of the waste injected is restricted so that the maximum temperature of the injection zone, in the vicinity of the shut down injection well, is no higher than two-thirds of the boiling point of the fluid in the injection zone. The results obtained in the long-term operation of the LRW Underground Injection Site demonstrate the possibility of reliable disposal of liquid radioactive and toxic waste into sandstone injection zones.