Nuclide-containing wastewater treatment process based on ion exchange method

Abstract

The invention discloses a nuclide-containing wastewater treatment process based on an ion exchange method. The treatment process comprises the following steps of: 1, draining laboratory wastewater containing low radioactive nuclides and rays into a neutralization regulation device, and adding a corresponding pH regulator into the neutralization regulation device so as to realize neutralization; 3, receiving the laboratory wastewater transmitted by a nuclide pump through a precision filter, and removing particle impurities in the wastewater; and 6, further removing residual ions in water produced by pretreatment equipment through a nuclear-grade adsorption bed so as to achieve the removal rate required by the process. According to the nuclide-containing wastewater treatment process based on the ion exchange method, the total height of each ion exchange device can be reduced, leakage is not easy to generate, and the maintenance workload is reduced; the frequency of a water supply pump can be automatically adjusted according to program requirements, so that stable-pressure variable-frequency water supply is carried out; and a third-stage nickel potassium ferrocyanide exchange column is added, Cs ions which are not completely removed in the first two stages can be removed.

Description

technical field [0001] The invention relates to the related technical field of nuclide-containing wastewater treatment, in particular to a nuclide-containing wastewater treatment process based on an ion exchange method. Background technique [0002] In today's world, the development of nuclear science and technology has entered a new stage, and the application of isotope and nuclear technology is more extensive and in-depth. Nuclear power generation has become one of the important ways to solve the current world energy crisis. Many countries have listed it as a key energy source for development. Nuclear energy While the development and utilization of radioactive materials have brought huge economic and social benefits to human beings, they have also produced a large amount of radioactive waste, which has brought a greater threat to the living environment of human beings. Therefore, how to safely and effectively dispose of radioactive waste , has become an increasingly urgent...

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a kind of nuclide-containing wastewater treatment process based on the ion exchange method, to solve the existing nuclide-containing wastewater treatment process system on the market proposed by the above-mentioned background technology The investment is high, the recovery rate is low, and at the same time Concentrated water is discharged from each membrane group, and there are great difficulties in the storage and post-recovery treatment of the concentrated solution. Secondary waste such as the concentrated solution, activated carbon, ion exchange resin, and R / O membrane modules is produced. In particular, the concentrate produced by the operation of the reverse osmosis membrane cannot handle a large amount of water, which occupies the storage tank space used for collection.