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Device and method for degrading dioxin through electron beam irradiation of waste incineration power plant

A technology of electron beam irradiation and garbage incineration, which is applied in the field of dioxin degradation devices, and achieves the effects of high efficiency, low energy consumption for irradiation, and fast processing speed

Inactive Publication Date: 2015-04-22
JINAN UNIVERSITY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are relatively few reports on the degradation of dioxins produced by waste incineration with electron beam irradiation technology

Method used

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  • Device and method for degrading dioxin through electron beam irradiation of waste incineration power plant
  • Device and method for degrading dioxin through electron beam irradiation of waste incineration power plant
  • Device and method for degrading dioxin through electron beam irradiation of waste incineration power plant

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Embodiment

[0023] Such as figure 1 As shown, the device of the present invention comprises an electron accelerator 1, an irradiation window 2 and an irradiation sample 3 placed on a sample stage 4, the irradiation sample contains dioxin molecules, and the high-speed electron beam 5 produced by the electron accelerator 1 is radiated through the irradiation window 2 to irradiate the sample 3, so that the high-energy electron beam 5 interacts with the dioxin molecules to complete the degradation of the dioxin. The greater the irradiation distance between the electron accelerator and the sample stage, the larger the irradiation area, and the lower the dose rate. In this embodiment, the irradiation distance is 50 cm, and the irradiation area is 1.2 m 2 .

[0024] The mechanism of electron beam irradiation to degrade dioxins is: when high-energy electron beams interact with dioxin molecules, dioxin molecules form excited state molecules, and when the energy of excited state molecules is great...

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Abstract

The invention provides a device and a method for degrading dioxin through electron beam irradiation of a waste incineration power plant. The device comprises an electron accelerator, an irradiation window and irradiation samples which are placed on a sample platform, wherein the irradiation samples contain dioxin molecules; electron beams generated by the electron accelerator are irradiated to the irradiation samples through the irradiation window to ensure that the electron beams interact with the dioxin molecules to finish the degradation of the dioxin; and the energies of the electron beams are 1.5 to 3MeV, the beam intensity is 1 to 30mA, the irradiation dose rate is 0.1 to 0.7kGy / s, and the total irradiation dose is 15 to 60kGy. By the device and the method, fly ashes generated by the waste incineration power plant are collected at first, and then the dioxins in the fly ashes are extracted and then placed under the electron beams generated by the electron accelerator to be subjected to radiation, so that the irradiation degradation rate of the dioxin reaches up to be 90 percent.

Description

technical field [0001] The invention relates to a device and a method for degrading dioxin produced by waste incineration power plants by using electron beam irradiation technology. Background technique [0002] Waste incineration power generation has become one of the main means of urban waste disposal, but because waste incineration will cause secondary pollution to the atmospheric environment, especially the toxic substance dioxin produced during the waste incineration process, which greatly limits the development of waste incineration power generation industry , How to reduce or remove the dioxins produced in the incineration process is a major environmental problem that needs to be solved urgently. [0003] Dioxins refer to chlorine-containing organic compounds (also known as isomers) containing two or one oxygen bond connecting two benzene rings. Combining 1 oxygen atom with 2 benzene rings substituted by chlorine atoms, each benzene ring is replaced by 1~4 chlorine a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D3/15A62D101/28A62D101/22
Inventor 张春磷沈沙亭张杰郑冬琴钟伟荣
Owner JINAN UNIVERSITY
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