Use of ultrasonic transducers

Abstract

To achieve rapid containment, within the next 5 to 10 years, of the Fukushima Daiichi nuclear power plant, which suffered an explosion due to the earthquake and tsunami in 2011, by neutralizing the radiation contaminated water and solids.SOLUTION: Water stored in tanks containing filtered tritiated water is allowed to fall from the tanks to concentrate the tritiated water. β and α decay of radiation contaminated water is forced using ultrasonic impacts without going through a purification process.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a method for detoxifying and disposing of radioactive atoms from radioactive contaminated water and radioactive solids at the Fukushima Daiichi Nuclear Power Plant, which exploded in 2011, the nuclear facility in Tokai Village, Ibaraki Prefecture, the reprocessing plant in Rokkasho Village, Aomori Prefecture, and other nuclear facilities. [Background technology]

[0002] Water is normally composed of light water molecules and heavy water molecules, but tritiated water is produced in nuclear reactors and reprocessing plants. The molecular weight of light water is 18, that of heavy water is 19 or 20, and that of tritiated water is 20. Light water molecules are polarized with slight positive and negative charges, so they form clumps of about 100 molecules. Heavy water molecules and tritiated water molecules are not charged, so they exist isolated in the gaps between the clumps of light water molecules. Therefore, when an ultrasonic vibrator impacts the water from the top, they fall to the bottom and become concentrated. Comparing the number of molecules per liter, light water has 10 to the 25th power, heavy water has 10 to the 21st power, and tritiated water has 10 to the 14th power (in terms of 10 to the 6th power becquerels).

[0003] Nuclear fission occurs when an electrically neutral neutron strikes the electropositive nucleus of a large atom of uranium or plutonium, weakening the nuclear charge of deuterium and tritium atoms by one proton in the nucleus, one neutron in the case of deuterium, and two neutrons in the case of tritium.

[0004] Therefore, when radioactive atoms are dissolved in a mixture of heavy water and tritiated water and then bombarded with an ultrasonic vibrator, the separated deuterium and tritium atoms collide with the nuclei of the radioactive atoms, a phenomenon known as "nuclear excitation."

[0005] Since the bombarded atoms have more neutrons than protons, they undergo beta decay to convert neutrons into protons and reduce the number of neutrons. Furthermore, in the case of U238, which is hardly fissile, it undergoes repeated neutron absorption and beta decay to produce actinide atoms such as Np, Pu, Am, and Cm. In the case of these atoms with high atomic numbers, they undergo alpha decay (releasing a He atom with two protons and two neutrons) to reduce both protons and neutrons. This will make it possible to dispose of Pu in a reprocessing plant, which has been a concern: see Figures 2, 3, 4, and 5.

[0006] When beta decay atoms are fixed in the negatively charged gaps of clay, etc., it becomes difficult for electrons to escape from the nucleus, suppressing decay and making detection difficult. Therefore, disposal of radioactive sludge requires a large impact to knock out the radioactive atoms that reside deep in the gaps. Summary of the Invention [Problem to be solved by the invention]

[0007] This is an intentional forced collapse in advance to prevent radioactivity from being released from the radioactive contaminated water and radioactive sludge at the Fukushima Daiichi Nuclear Power Plant and other radioactive facilities.

[0008] In the radioactively contaminated water filtered by the ALPS multi-nuclide removal equipment, some unseparated tritium water molecules remain. However, the absolute amount is only about 5 grams per 500,000 tons.

[0009] No conventional method can eliminate radioactivity with a reduced half-life.

[0010] Radioactive water contaminated by uranium fission contains a wide variety of atoms. Since Cs and other elements are easily absorbed and fixed in solids, the challenge is to dissolve the radioactive atoms from the ALPS purification treatment sludge and explosion sludge into water. [Means for solving the problem]

[0011] The ultrasonic transducer uses the bubble collapse shock. The amount of radioactively contaminated water to be detoxified is a large amount, amounting to one million tons, and even if it is operated for 5 to 10 years, a large number of tritium water fallout enrichment columns and radioactive nucleus excitation devices will be required, which will require a huge number of transducers. Therefore, the frequency is lowered and the driving circuit is a simple device consisting of a square wave signal generator and transformer amplification.

[0012] In the descent enrichment column for tritiated water, which is heavier than light water, the bombardment is performed from above, and in the nuclear excitation device, the bombardment is performed on shallow radioactively contaminated water: see Figures 5 and 6. [Effects of the Invention]

[0013] Heavy water and tritiated water are concentrated at the bottom of the descent enrichment column, and beta decay and alpha decay occur instantly in the nuclear excitation device. [Brief explanation of the drawings]

[0014] [Figure 1] The excess neutrons in a Cs nucleus are converted into protons, resulting in the formation of a Ba atom. [Figure 2] The transformation of tritium nuclei into helium nuclei. [Figure 3] The heavy atom U absorbs a neutron and transforms into an even larger atom. [Figure 4] Concerns about alpha decay disposal of Pu [Figure 5] Tritiated water-containing descent enrichment device: An ultrasonic vibrator impacts downward from the top of the tube, sending tritiated water molecules and heavy water molecules, which are slightly heavier than light water molecules, downward. [Figure 6] Slow flow nuclear excitation forced disintegration device: Radioactively contaminated water, heavy water, and tritiated water are flowed into a rectangular tube with an ultrasonic vibrator attached to the top surface. Mode for carrying out the invention Example 1

[0015] As shown in Figure 5, a pipe with an inner diameter of 25 cm and a length of 2 m (approximately 100 L) is lowered in one hour. Three sets of three units make up one device: 9 units x 33 units = 297 units. Over three years, 400,000 tons of treated water from the Fukushima Daiichi Nuclear Power Plant, from which radioactive atoms other than tritium water molecules have been removed, will be disposed of. Approximately 40 tons of enriched tritiated water and heavy water at the bottom will be used in the Tenkei bomb of the next nuclear excited decay disposal device. Example 2

[0016] As shown in Figure 6, radioactively contaminated water and separately obtained heavy water and tritium water are flowed into a nuclear excitation tube, and an ultrasonic vibrator is applied from above, causing the deuterium and tritium atoms of the heavy water to collide with the nuclei of radioactive atoms. The energy released by beta decay and alpha decay is used to make hot water. Industrial potential

[0017] The issue of disposing of radioactive contaminated water and radioactive atoms is not just a problem in Japan, but is also a problem overseas. Nuclear power generation begins with the nuclear fission of 92U235 atoms, but at the same time, there are concerns that 942Pu239, which is produced from the non-fissionable 92U238, could be used to create a nuclear weapon bomb. As a result, the world remains a quagmire, with MOX fuel being extracted from spent nuclear fuel and mixed with ordinary U-fuel reactors, and fast reactors such as Joyo and Monju being used exclusively for Pu. This patented nuclear excitation method can fundamentally solve these problems by intentionally inducing beta and alpha decay, without wasting huge amounts of national funds. It can solve problems not only in Japan but also overseas.

Claims

1. A method of utilizing ultrasonic vibration impact, characterized by using a Honda Electronics HEC-45282 Langevin type ultrasonic vibrator as the ultrasonic vibrator, and amplifying and vibrating a rectangular wave pulse of up to 4 kHz generated by an NE555P element using a Toyosumi HT-1203 transformer (3 Ω: 180 Ω) and a K2313 element.

2. A method of utilizing ultrasonic vibration and impact, characterized in that water containing tritiated water is placed in a cylinder, and the ultrasonic vibration and impact of claim 1 is applied from above, causing the tritiated water and heavy water to fall and concentrate at the bottom.

3. A method of utilizing ultrasonic vibration shock, characterized in that tritiated water and heavy water of

2. are added to an aqueous solution in which uranium, plutonium, and their fission radioactive atoms are dissolved, and the ultrasonic stimulus of

1. is applied, thereby intentionally causing alpha decay and beta decay without relying on the intrinsic half-life of the radioactive atoms.

4. A method of using ultrasonic vibration shock to intentionally induce alpha decay and eliminate the risk of Pu accumulation.

5. A method of using ultrasonic vibration impact to dissolve radioactive atoms fixed in a solid material by the ultrasonic vibration impact of claim 1.

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