Nuclear power plant radioactive-waste treatment system

Abstract

The invention discloses a nuclear power plant radioactive-waste treatment system. The nuclear power plant radioactive-waste treatment system comprises a mixed gas delivery device, a fluidized bed, a filter and an oxidizer, wherein the fluidized bed, the filter and the oxidizer are sequentially and serially connected at the downstream of the mixed gas delivery device through pipes, a fluidized bedinlet is also connected with an additive supply device through a pipe. Compared with prior art, the nuclear power plant radioactive-waste treatment system is simple in structure, low in manufacturingcost, small in radioactive leakage risk, small in waste discharging amount and capable of treating waste resin and organic liquid wastes simultaneously and has a very good market application prospect.

Description

technical field [0001] The invention belongs to the field of nuclear power, and more specifically, the invention relates to a nuclear power plant radioactive waste treatment system. Background technique [0002] Radioactive organic solid wastes from nuclear power plants such as waste resins, fibrous substances (rags, paper, clothing, wood, etc.), plastics, rubbers and other substances or organic liquid wastes such as waste oils and greases are mainly treated by incineration. As fuel, it is sent to the incinerator. Under high temperature conditions (generally around 900°C), the combustible components in the waste undergo a violent chemical reaction with the oxygen in the air, releasing heat, and finally transforming into high-temperature flue gas and solid residue. However, high temperature incineration technology has some disadvantages: [0003] 1) There is an explosion phenomenon. When the concentration of combustible gas in the incinerator increases suddenly, or the compo...

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Problems solved by technology

[0005] 3) Organic solid waste waste resin contains a lot of water, which needs to be dried before incineration, and the heat value of waste resin is not high, which increases the difficulty of treatment;

[0006] 4) Dioxin and other secondary wastes are produced during the incineration process, which is difficult to process and expensive;

[0007] 5) The investment cost of the device is high, and it is difficult for the public to accept it, which is not conducive to promotion

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