Liquid waste disposal and canister flushing system and method

(57) Summary radioactive-liquid-waste processing and a canister flash cleaning system contain the cabinet (6) equipped with the subsink (141) which receives the sink (14k) which receives a canister (4), and its lower part portion. A subsink (141) is connected to a drain line (140). A plunger subassembly (12) contains the stopper (95) which functions as a plunger rod (92) and a drain valve to a canister (4). It is connected to a head and the source of pure solution (21, 39), and an ejection jet (34) emits the diluted washing solution into a canister (4), and carries out flash washing. An ejection jet (34) carries out engaging of clutch of the plunger subassembly (12) which discharges a stopper (95) from a canister opening (12a). A control system (10) contains a programmable microprocessor (50) programmable to offer Dorain (drainage) of predetermined continuation time, and a flash washing cycle. Radioactive-liquid-waste processing and the canister flash washing method are also offered again.