Separation and recovery device for liquid waste including radionuclide, and separation and recovery method using the same

摘要

Provided are a separation and recovery device for a liquid waste including a radionuclide, and a separation and recovery method using the same. Specifically, the present disclosure relates to a separation and recovery device that may effectively separate a liquid waste, such as a waste detergent including a radionuclide, and simultaneously, may prevent the release of tritium and radiocarbon to the outside, and a separation and recovery method using the same.

主权项

1. A method of separating and recovering a liquid waste that includes a radionuclide by using a separation and recovery device, the method comprising:
heating a liquid waste mixture to evaporate a low boiling point liquid waste that includes a radionuclide (step 1); condensing the low boiling point liquid waste evaporated in step 1 and then recovering a condensate to a condensate recovery unit (step 2); and dipping one end of a transfer tube in the condensate recovered in step 2 to dissolve the evaporated radionuclide in the condensate (step 3), wherein the separation and recovery device comprises: a liquid waste storage unit that stores the liquid waste mixture; a heating unit that heats the liquid waste storage unit to such that the low boiling point liquid waste is evaporated from the liquid waste mixture; a condensation chamber that is connected to an upper portion of the heating unit and that condensates the evaporated low boiling point liquid waste, wherein the condensation chamber is positioned at an incline relative to the liquid waste storage unit such that a horizontal axis of the condensation chamber is at an angle relative to a horizontal axis of the liquid waste storage unit, and wherein at least some of the evaporated low boiling point liquid waste is retained within the condensation chamber after being condensed; the condensate recovery unit, wherein the condensate recovery unit is connected to the condensation chamber and is configured to recover the condensate; and a transfer tube that transfers the condensate condensed in the condensation chamber to the condensate recovery unit, wherein one end of the transfer tube is dipped in the condensate in the condensate recovery unit, wherein the evaporated low boiling point liquid waste moves from the heating unit to the condensate recovery unit by a pressure difference between the heating unit and the condensate recovery unit, and wherein the evaporated radionuclide is recovered by being dissolved in the condensate in the condensate recovery unit.