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An experimental method for purifying simulated radioactive wastewater by adsorption

A technology of radioactive wastewater and experimental methods, which is applied in the field of purifying simulated radioactive wastewater by adsorption method, can solve the problems of low decontamination factor, and achieve the effects of expanding application range, enriching pore size distribution, and high chemical stability

Inactive Publication Date: 2018-06-29
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention aims to propose an experimental method for purifying simulated radioactive waste water by adsorption method, which solves the problem of low decontamination factor in the treatment of low-level radioactive waste water in the prior art, and can simultaneously remove many radioactive waste water. The purpose of a nuclide

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Take 0.1g of active boron nitride and add it to a volume of 100mL containing 58 In the simulated radioactive wastewater with a mass concentration of Ni of 20 mg / L, after stirring and adsorbing at 20 °C for 60 min, the purified effluent was obtained by filtration with a microfiltration membrane with a pore size of 0.22 μm. Purified effluent 58 The mass concentration of Ni is 0.06mg / L, and the decontamination factor is 833.

Embodiment 2

[0024] Take 0.1g of active boron nitride and add it to a volume of 100mL containing 58 In the simulated radioactive wastewater with a mass concentration of Ni of 10mg / L, after stirring and adsorbing at 20°C for 60min, the purified effluent was obtained by filtration with a microfiltration membrane with a pore size of 0.22μm. Purified effluent 58 The mass concentration of Ni is 0.03mg / L, and the decontamination factor is 667.

Embodiment 3

[0026] Get 0.05g of active boron nitride, add it to a volume of 50mL containing 59 In the simulated radioactive wastewater with a mass concentration of Co of 5 mg / L, the purified effluent was obtained by filtering with a microfiltration membrane with a pore size of 0.22 μm after stirring and adsorbing at 20 °C for 90 min. Purified effluent 59 The mass concentration of Co is 0.02mg / L, and the decontamination factor is 250.

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Abstract

The invention provides exploiting absorbent means purge simulating emission sewage trial method, comprising the step that dropping volatile boron nitride in simulate emission sewage containing emission nuclide stabilizing isotope and absorbing, keeping simulate emission sewage temperature constant at 15-30 DEG C, attaining absorbent balance and separating solid to liquid, finishing simulate emission sewage purge; where, simulate emission sewage contains one sort or two sorts of emission nuclide stabilizing isotope 59Co, 58Ni, 55Mn. Trial method relative to available methods, removes sewage emission nuclide same time acquires higher decontamination reason factor. Volatile boron nitride same time removes more sorts of emission nuclide, expands absorbent means purge simulating emission sewage apply scope.

Description

technical field [0001] The invention belongs to the field of sewage treatment, in particular to an experimental method for purifying simulated radioactive waste water by using an adsorption method. Background technique [0002] With the wide application of radionuclides in military, energy, industry, agriculture, medicine and other fields, their mining, smelting, processing and application will produce a certain amount of radioactive wastewater and discharge it into the water environment. These wastewaters are harmful to the ecological environment and human beings. The health hazards are serious and far-reaching. [0003] At home and abroad, extremely low-level radioactive wastewater is usually discharged into waters, and made harmless by dilution and diffusion. For the treatment of low, medium and high-level radioactive wastewater, the waste water concentration product is generally isolated from the human living environment for a long time after solidification , let it dec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21F9/12
CPCG21F9/12
Inventor 韩非张彦平王丽娟李静李岩峰
Owner HEBEI UNIV OF TECH
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