Nuclear power plant waste solidification treatment system and method

The invention discloses a nuclear power plant waste solidification treatment system and a treatment method. According to prior arts, a weight metering method is adopted, system equipment complication is high, mounting difficulty is high, debugging, operation and maintenance are difficult, and a weighing unit has risks of weight deviation and measurement failure. With the system and method provided by the invention, the above technical problems are solved. The system comprises a waste collection unit (1), a waste volume metering unit (2), a waste delivery pipe (3), a valve assembly (4), a control unit (5) and a waste solidification unit (6). The control unit (5) acquires waste volume from the waste volume metering unit (2), and controls the open/close state of the valve of the valve assembly (4) based on the waste volume, such that the waste volume metering unit (2) acquires and temporarily stores a preset volume of nuclear plant waste for solidification during each waste solidification link. Therefore, waste precise metering and solidification under a measurement mode with no weighing unit is realized.