KR100884004B1 - An apparatus for processing waste radioactive organic solvent - Google Patents

Abstract

An apparatus for processing waste radioactive organic solvent is provided to reduce radioactive waste material remarkably by processing inorganic solvent and organic solvent in a different way under a condition that the two solvents are separated. An organic solvent separating unit(10) separates waste radioactive organic solvent into organic solvent and inorganic solvent by using cohesive agent. A resolvent agent supply unit(20) supplies the organic solvent separating unit with resolvent agent. A compression supply unit(30) supplies the organic solvent separating unit with the resolvent agent under supercritical state. A filtering unit(40) performs filtering operation on the gas component flowed from the organic solvent separating unit. An inorganic solvent filtering unit(50) performs filtering operation on foreign material and organic material contained in the inorganic solvent flowed from the organic solvent separating unit. A decompressing unit separates the inorganic solvent flowed from the inorganic solvent filtering unit into cohesive agent and water. The decompressing unit discharges the separated water to outside.

Description

An Apparatus For Processing Waste Radioactive Organic Solvent

The present invention relates to an apparatus for treating waste radioactive organic solvent, and more particularly, to separate an inorganic solvent and an organic solvent included in a waste radioactive organic solvent by using a flocculant, and in the state where the inorganic solvent and the organic solvent are separated, the inorganic solvent is inorganic. In the solvent filtration unit and the reduced pressure unit, the organic solvent is completely decomposed in the organic solvent separation unit and then separately treated in the filtration unit to easily treat the waste radioactive organic solvent containing inorganic components, thereby dramatically reducing radioactive waste. It relates to a waste radioactive organic solvent treatment apparatus that is effective.

In general, liquid fluorescence counters are used to analyze low-energy radioactive materials (eg H-3, C-14, etc.) in nuclear power plants or radioisotopes. In order to use such a liquid fluorescence counter, the radioactive material is mixed with the fluorescent organic material, and the radioactive material is analyzed by radiation and energy emitted thereto.

As described above, the fluorescent organic material used for the analysis of radioactive material is an organic solvent, its main component is toluene (90% or more), a carcinogen, and is incinerated by special industrial wastes.

However, the above-described waste radioactive organic solvent contains inorganic substances (including 10 to 90%), and when the waste radioactive organic solvent is incinerated as described above, the incineration efficiency of the waste radioactive organic solvent is not only significantly reduced but also enormously incinerated. There was a problem of cost.

Accordingly, in the industry, there is an urgent need for a device capable of more efficiently and efficiently treating waste radioactive organic solvents containing water.

The present invention has been made to solve the above problems, an object of the present invention is to separate the inorganic solvent and the organic solvent contained in the waste radioactive organic solvent by using a flocculant in order to completely decompose the waste radioactive organic solvent. In the state where the inorganic solvent and the organic solvent are separated, the inorganic solvent is treated in the inorganic solvent filtration unit and the decompression unit, and the organic solvent is completely decomposed in the organic solvent separation unit and then separately processed in the filtration unit. By easily treating the radioactive organic solvent, to provide a waste radioactive organic solvent processing apparatus that has an effect of significantly reducing radioactive waste.

According to an aspect of the present invention for achieving the above object, in the waste radioactive organic solvent processing apparatus for treating waste radioactive organic solvent containing inorganic components, the waste radioactive organic solvent supplied from the outside is organic by a flocculant The organic solvent is separated into a solvent and an inorganic solvent, and the separated inorganic solvent is discharged, and the organic solvent is separated into water and a gas component by a supplied decomposition agent (supercritical ozone), and then the gas component is discharged. A solvent separation unit, a decomposition agent supply unit for supplying a decomposition agent to the organic solvent separation unit, and a decomposition agent supplied from the decomposition agent supply unit is pumped into the organic solvent separation unit and the decomposition agent is supercritical state in the organic solvent A compression supply unit supplied to the separation unit and the gas component discharged from the organic solvent separation unit flows in, and the introduced gas component is filtered. The filter unit for discharging to the outside, the inorganic solvent discharged from the organic solvent separation unit is introduced, the inorganic solvent filter unit for filtering the foreign substances and organic substances contained in the inorganic solvent, and the foreign matter by the inorganic solvent filter unit And a decompression unit for introducing the inorganic solvent in which the organic material is filtered, separating the introduced inorganic solvent into a flocculant and water, and discharging the separated water to the outside. .

In addition, the organic solvent separation unit is formed with an inlet hole into which the waste radioactive organic solvent supplied from the outside is introduced, and a decomposing agent supply hole through which the decomposing agent is pumped on the other side, a pressure release unit is formed on the upper side, and the lower one side of the organic solvent separation unit. A discharge pipe for discharging an inorganic solvent is formed, and a flocculant supply unit for supplying a coagulant to the waste radioactive organic solvent through the inlet hole, and agitating the decomposing agent and the waste radioactive organic solvent supplied through the decomposing agent supply hole. A mixer, a reactor heating means installed on an outer circumferential surface of the separator to heat the waste radioactive organic solvent and the disintegrant, and installed on one side of the separator, and opened when the separator internal pressure reaches a preset pressure, It is preferable to include a negative pressure gauge to discharge the bay to the outside.

The decomposing agent supply unit may include an ozone supply unit supplying ozone to the organic solvent separation unit and a hydrogen peroxide supply unit supplying hydrogen peroxide to the organic solvent separation unit.

In addition, the filtration unit is provided on the gas discharge means for transferring the gas component discharged from the organic solvent separation unit to the outside, the discharge path of the gas component discharged by the gas discharge means, included in the discharged gas component And a first pretreatment filter for filtering the foreign substances, an ozone crusher for crushing ozone contained in the gas component from which the foreign substances are filtered, and an organic removal filter for filtering organic substances contained in the gas component crushed ozone. desirable.

In addition, the inorganic solvent filtration unit is a second pretreatment filter for filtering the foreign matter contained in the inorganic solvent discharged from the organic solvent separation unit and an organic material filtration filter for filtering the organic material contained in the inorganic solvent filtered the foreign matter It may include.

In addition, the pressure-reduction unit is an inorganic solvent storage unit for the foreign solvent and the organic material is filtered by the inorganic solvent filter, the inorganic solvent storage unit for storing the introduced inorganic solvent, and the inorganic solvent stored in the inorganic solvent storage unit Reactor heating means for heating the water, Cooling means for cooling water vapor evaporated from the inorganic solvent heated by the reactor heating means, and the water condensed by the cooling means is stored, the outlet is formed in the lower portion It is preferable to include a water collecting unit discharged to the outside.

In addition, the decompression unit is installed on the first shut-off valve installed on the discharge path of the inorganic solvent flowing into the inorganic solvent storage unit, the second shut-off valve installed on the discharge port of the water collecting unit, and installed at the rear end of the cooling means And decompressing the inorganic solvent storage unit and the water collecting unit and inducing the water vapor toward the cooling means.

According to the present invention as described above, using the flocculant to separate the inorganic solvent and the organic solvent contained in the waste radioactive organic solvent, and the inorganic solvent in the state in which the inorganic solvent and the organic solvent is separated in the inorganic solvent filtration unit and the decompression unit , The organic solvent is completely decomposed in the organic solvent separation unit and then separately treated in the filtration unit, thereby dramatically reducing radioactive waste.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a schematic diagram showing the structure of the waste radioactive organic solvent treatment apparatus according to an embodiment of the present invention, Figure 2 shows the organic solvent separation of the waste radioactive organic solvent treatment apparatus according to an embodiment of the present invention Figure 3 is a view showing a filtration unit of the waste radioactive organic solvent treatment apparatus according to an embodiment of the present invention.

As shown in FIG. 1, an apparatus for treating waste radioactive organic solvent 1 according to an embodiment of the present invention includes an organic solvent separation unit 10, a decomposition agent supply unit 20, a compression supply unit 30, and a filtration unit ( 40) and the inorganic solvent filtration part 50 and the pressure reduction part 60 are comprised.

The organic solvent separation unit 10 includes a reactor 11, a coagulant supply unit 12 installed at one side of the reactor 11, a mixer 13 installed at an inner lower surface of the reactor 11, and a reactor 11. It comprises a reactor heating means 14 and a negative pressure gauge 15 is installed on the upper portion of the reactor 11 is installed on the outer peripheral surface of the inorganic solvent after separating the incoming radioactive organic solvent into an organic solvent and an inorganic solvent The organic solvent is separated into water and gaseous components and then discharges the separated gaseous components.

Reactor 11 has an inlet hole (11a) is connected to the supply pump (P) provided on the outside is a waste radioactive organic solvent is introduced into the inside through the inlet hole (11a) by the supply pump (P), the other side Decomposition agent supply hole (11b) is formed in the decomposer is pumped in, the pressure release portion (11c) connected to the filtration unit 40 to be described later is formed in the upper portion.

In addition, an opening valve V is installed in the path connecting the pressure release part 11c and the filtration part 40 to adjust the internal pressure of the reactor 11 to normal pressure. By opening the open valve (V) provided between the (40) to release the pressure of the reactor (11) to the outside so that the pressure of the reactor (11) is in the normal pressure state.

In addition, the reactor 11 has a discharge pipe (11d) connected to the inorganic solvent filtration unit 50 to be described later on one side of the lower side when the waste radioactive organic solvent is separated into an organic solvent and an inorganic solvent discharge pipe (11d) Through the inorganic solvent filtration unit 50 is discharged.

In addition, a visual gauge (not shown) is formed at one side of the reactor 11.

The coagulant supply unit 12 is installed on one side of the upper portion of the reactor 11, the coagulant is stored therein, and when the waste radioactive organic solvent is introduced into the reactor 11, the stored coagulant is introduced into the waste radioactive organic solvent to waste waste organic It serves to separate the solvent into an organic solvent and an inorganic solvent. At this time, salt (NaCl) may be used as the flocculant.

Here, a brief look at the cause of the flocculant separating the waste radioactive organic solvent into an inorganic solvent and an organic solvent, the sodium ions and chloride ions of the salt is bound to both sides of the water particles when reacted with water. Since the salt is combined with the inorganic solvent, the specific gravity is heavier than the organic solvent. The organic solvent lighter than the inorganic solvent does not go to the bottom of the organic solvent is stacked on the inorganic solvent.

The mixer 13 is installed on the inner lower surface of the reactor 11 as described above to agitate the waste radioactive organic solvent and the decomposition agent introduced into the reactor 11 to increase the reaction time of the waste radioactive organic solvent and the decomposition agent, It improves the reaction efficiency.

The reactor heating means 14 may be generally used as a heater, and serves to maintain the temperature in the reactor 11 at a constant temperature by heating the reactor 11, in one embodiment of the present invention inside the reactor 11 The temperature of was set to 35 kPa. The reason for setting the temperature inside the reactor 11 to 35 kW will be described in detail in the operation description of one embodiment of the present invention described later.

The negative pressure gauge 15 has one end in communication with the connection path between the pressure release part 11c and the filtration part 40 described above, and is opened when the internal pressure of the reactor 11 is greater than or equal to a predetermined pressure to discharge the excess pressure. Maintains the internal pressure of the, and serves to allow the gas component generated inside the reactor 11 to be moved to the filtration unit 40 while the excess pressure is discharged. As described above, the negative pressure gauge 15 is opened and closed according to the pressure preset by the operator to maintain the internal pressure of the reactor 11 to move the gas to the filtration unit 40 which will be described later, as well as the reactor 11 to the internal pressure. To prevent damage.

The decomposing agent supply unit includes an ozone supply unit 21 and a hydrogen peroxide supply unit 22, and reacts with the organic solvent by supplying ozone and hydrogen peroxide into the reactor 11 to separate the organic solvent into water and gaseous components. Play a role. At this time, ozone (O ₃ ) and hydrogen peroxide (H ₂ O ₂ ) are added to toluene having a chemical formula of C ₆ H ₅ CH ₃ , which is a main component of the waste radioactive organic solvent, to convert carbon and hydrogen from toluene into oxygen from ozone and hydrogen peroxide. Toluene is separated into carbon monoxide, carbon dioxide and water by reacting with OH radicals. In the following description of the operation according to an embodiment of the present invention will be described in more detail the reaction of toluene.

The compression supply unit 30 is installed on a path through which ozone and hydrogen peroxide flow into the reactor 11, and compresses ozone and hydrogen peroxide to feed the inside of the reactor 11. As a general example of the compression supply unit 30, a booster or the like may be used, and the present invention is not limited thereto, and any one may be applied as long as it can compress ozone and hydrogen peroxide and pressurize it into the reactor 11. Do.

The filtration unit 40 is connected to one end of the negative pressure gauge 15 and the pressure releasing portion 11c as described above, and the gas component when the negative pressure gauge 15 is opened to introduce a gas component from the reactor 11. It serves to filter and discharge to the outside, and largely comprises a gas discharge means 41, the first pretreatment filter 42, the ozone crusher 43 and the first organic removal filter 44.

The gas discharge means 41 may be generally used with a blower, and serves to allow the gas component exhausted from the reactor 11 to be easily exhausted to the outside through the filtration unit 40.

The first pretreatment filter 42 is installed at the front end of the filtration unit 40 to filter foreign matter having large particles contained in the gaseous components exhausted.

The ozone crusher 43 is installed at the rear end of the first pretreatment filter 42 and serves to crush ozone contained in the gas component from which foreign matter is filtered from the first pretreatment filter 42.

The first organic elimination filter 44 is installed at the rear end of the ozone crusher 43, and serves to filter organic materials not decomposed by ozone.

The inorganic solvent filtration unit 50 is connected to the discharge pipe 11d of the reactor 11 and serves to filter foreign substances and organic substances included in the inorganic solvent introduced from the discharge pipe 11d of the reactor 11, and greatly. And a second pretreatment filter 51 and a second organic removal filter 52.

The second pretreatment filter 51 is installed at the tip of the inorganic solvent filtration unit 50 to filter foreign matter having large particles contained in the inorganic solvent introduced therein.

The second organic removal filter 52 is installed at the rear end of the second pretreatment filter 51, and serves to filter the organic material contained in the inorganic solvent in which the foreign matter is filtered from the second pretreatment filter 51.

The pressure reduction unit 60 is provided at the rear end of the inorganic solvent filtration unit 50 and is largely equipped with an inorganic solvent storage unit 61, a storage unit heating unit 62, a cooling unit 63, and a water collecting unit 64. It is configured to include the inorganic solvent filtered by the inorganic solvent filter unit 50 separates the inorganic solvent filtered by the flocculant and water, and serves to discharge the separated water to the outside.

The inorganic solvent storage unit 61 serves to store the inorganic solvent in which the inorganic solvent filtered by the foreign matter and the organic material in the inorganic solvent filtration unit 50 is introduced for a predetermined time.

The reservoir heating means 62 heats the inorganic solvent stored in the inorganic solvent storage 61 to evaporate water contained in the inorganic solvent to precipitate a flocculant to separate the inorganic solvent into a flocculant and water.

The cooling means 63 is installed on the outer circumferential surface of the connecting pipe connecting the inorganic solvent storage 61 and the water collecting part 64, and is cooled by the storage heating means 62 to cool the water vapor passing through the connecting pipe. Thereby condensing water vapor.

The water collecting unit 64 forms a discharge pipe 11d at the lower part, collects water condensed by the cooling means 63, and when a predetermined amount or more of water is collected, the water collected through the discharge pipe 11d formed at the lower part is externally collected. To discharge.

4 is an operation flowchart showing the operation procedure of the waste radioactive organic solvent processing apparatus 1 according to the embodiment of the present invention.

The operation of the waste radioactive organic solvent treating apparatus 1 according to the embodiment of the present invention having such a structure will be described with reference to FIG. 4.

First, when the waste radioactive organic solvent is introduced into the organic solvent separation unit 10 by the supply pump P provided outside (S10), the flocculant is supplied to the waste radioactive organic solvent introduced from the flocculant supply unit 12 (S20). )

Thereafter, the waste radioactive organic solvent is separated into an organic solvent and an inorganic solvent by the supplied flocculant (S30). In general, an inorganic solvent having a higher specific gravity than the organic solvent is located at the bottom of the reactor 11, and the organic solvent is an inorganic solvent. Stacked on top. This can be confirmed through the visual gauge (not shown) of the reactor 11 described above.

Next, the separated inorganic solvent is discharged to the inorganic material filtering part 40 through the discharge pipe 11d of the reactor 11, and only the organic solvent remains inside the reactor 11 (S110).

Next, the decomposing agent supply unit 20 supplies ozone and hydrogen peroxide, and compresses the ozone and hydrogen peroxide in the compression supply unit 30 to be compressed into the reactor 11. (S40) At this time, the internal temperature of the reactor 11 is The reactor heating means 14 maintains 35 ° C., and the compression supply unit 30 compresses ozone and hydrogen peroxide so as to have an internal pressure of 200 Pa, and presses it into the reactor 11.

As such, the internal temperature of the reactor 11 is maintained at 35 ° C., and the internal pressure of the reactor 11 is maintained at 200 Pa. The reason why ozone supplied from the decomposition agent supply unit 20 is supercritical is maintained in the reactor 11. To maintain. Supercritical fluid (SCF) is defined as a substance in conditions of critical pressure and above a critical temperature, and is in a non-liquid or non-gas intermediate state, that is, liquidity and diffusion of gas. And active state.

The ozone and hydrogen peroxide supplied thereto are introduced into the lower part of the reactor 11, and the introduced ozone becomes a supercritical state when the above conditions are reached. Ozone and hydrogen peroxide are mixed with organic solvents in the liquid state. As a result, the mixer 13 stirs the organic solvent and the disintegrating agent in order to improve the reaction time and the reaction efficiency between the organic solvent and the disintegrating agent.

Here, looking at the reaction formula between the organic solvent and the decomposition agent, the main component of the organic solvent is toluene, as described above, toluene has the formula of C ₆ H ₅ CH ₃ and ozone and hydrogen peroxide are O ₃ , H ₂ O ₂ , respectively. Have The ozone O ₂ ^- and hydrogen peroxide are converted into carbon dioxide or water while OH radicals are generated and react with toluene, removing the toluene rings one by one. OH Radical (OH Radical) is a natural substance that is harmless to the human body, involved in sterilization and disinfection of pollutants, and has the strongest effect of chemical decomposition and removal.

Then, when the reaction of ozone and toluene by OH radical is shown step by step, ozone reacts with hydroxyl group (Equation 1), and the chain reaction by OH radical starts, and the generated O ₂ ^- radical selectively reacts with ozone (Equation 1) 2), O ₂ ⁻ reacts with water molecules to produce OH radicals with high oxidation power (Eq. 3), while the organic solvent is oxidized and decomposed by OH radicals.

^{_{O 3 + OH → O 2 -}} + HO 2 ( Equation 1)

^{_{O 3 + O 2 - → O}} 3 - + O 2 ( Equation 2)

^{_{O 3 - + HO 2 → OH}} + OH - + O 2 ( Formula 3)

As such, toluene is separated into carbon monoxide, carbon dioxide, and water by reacting with ozone and hydrogen peroxide.

Then, the separated water is stored in the lower portion of the reactor 11 and then discharged to the inorganic solvent filtration unit 50, like the inorganic solvent, carbon monoxide and carbon dioxide is stored inside the reactor 11, carbon monoxide and carbon dioxide is stored in a certain amount When the internal pressure of the reactor 11 is increased, the negative pressure gauge 15 installed on the reactor 11 is opened. In an embodiment of the present invention, the opening pressure of the negative pressure gauge 15 is set to 250 Pa. When the internal pressure of the reactor 11 is 250 Pa or more, the negative pressure gauge 15 is opened to store the carbon monoxide stored in the reactor 11. Carbon dioxide flows into the filtration unit 40.

Carbon monoxide and carbon dioxide introduced into the filtration unit 40 are contained in a small amount by the first pretreatment filter 42, the ozone crusher 43, and the first organic removal filter 44 of the filtration unit 40 and ozone. And after the organic material is filtered, it is discharged to the outside.

In this embodiment, the temperature inside the reactor 11 is set to 35 ° C. and the pressure is 200 Pa, and the open pressure of the negative pressure gauge 15 is described as 250 Pa. However, the temperature and the pressure inside the reactor 11 are supercritical. It can be applied within the range that can maintain the state, the open pressure of the negative pressure gauge 15 can be applied if it is higher than the pressure of the reactor 11, in consideration of the storage amount of carbon monoxide and carbon dioxide in the reactor (11) It is preferable to set approximately 50 Pa higher than the internal pressure of the reactor 11.

On the other hand, the inorganic solvent introduced into the inorganic solvent filtration unit 50 is foreign matter and organic substances contained in the inorganic solvent through the second pretreatment filter 51 and the second organic removal filter 52 of the inorganic solvent filtration unit 50 This is filtered. (S120, S130)

Thereafter, the inorganic solvent in which the foreign matter and the organic material are filtered by the inorganic solvent filtration unit 50 is introduced into the inorganic solvent storage unit 61 of the pressure reduction unit 60 and stored in the inorganic solvent storage unit 61.

Next, when the inorganic solvent stored in the inorganic solvent storage unit 61 is heated by the storage unit heating unit 62 (S140), the water contained in the inorganic solvent is evaporated and a coagulant is formed on the bottom surface of the inorganic solvent storage unit 61. The water vapor that is precipitated and generated by the storage unit heating means 62 is moved to the water collection unit 64 through a connecting pipe connecting the inorganic solvent storage unit 61 and the water collection unit 64. Water vapor that is moved to the water collecting unit 64 is condensed back into the water by the cooling means 63 installed on the outer surface of the connection pipe and stored in the water collecting container (S150).

Finally, when a certain amount of water is stored in the water collecting unit 64, the water stored in the water collecting unit 64 is discharged through the discharge hole formed in the lower portion of the water collecting unit 64.

5 is a schematic diagram schematically showing the structure of the waste radioactive organic solvent processing apparatus 1 according to the embodiment of the present invention.

5 is basically the same as the embodiment of FIGS. 1 and 4, but has a structure for shortening the separation reaction time of the flocculant and the water of the inorganic solvent in the pressure reduction unit 60.

As shown in FIG. 5, the present embodiment, unlike the previous embodiment, installs a first shutoff valve 65 between the inorganic solvent filtration unit 50 and the pressure reduction unit 60, Pressure reducing means (67) is provided on the discharge pipe (11d) and the second shut-off valve (66) is installed on one side of the water collecting portion (64) to reduce the internal pressure of the inorganic solvent storage portion (61) and the water collecting portion (64). ) Is installed.

Looking at the operation of the embodiment of the present invention as described above, if a certain amount of inorganic solvent is stored in the inorganic solvent storage 61, the first solvent shutoff valve 65 and the second shut-off valve 66 to block the inorganic solvent storage 61 And the water collecting unit 64 is sealed, and the inorganic solvent storage unit 61 and the water collecting unit may be discharged to the outside by discharging air inside the inorganic solvent storage unit 61 and the water collection unit 64 by driving a decompression device. 64) Depressurize the inside.

As a result, the boiling point of the water is lowered and the heating time of the water is shortened by the storage unit heating means 62, thereby shortening the reaction time of the inorganic solvent.

   Since the rest of the structure is the same as the above-described basic embodiment, the rest of the description will be omitted.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will cover such modifications and variations as fall within the spirit of the invention.

1 is a schematic diagram schematically showing the structure of a waste radioactive organic solvent treating apparatus according to an embodiment of the present invention;

2 is a view showing the waste radioactive organic solvent separation unit of the waste radioactive organic solvent treating apparatus according to an embodiment of the present invention;

3 is a view showing a filtration unit of an apparatus for treating waste radioactive organic solvents according to an embodiment of the present invention;

4 is an operation flowchart showing an operation procedure of the waste radioactive organic solvent processing apparatus 1 according to the embodiment of the present invention;

Figure 5 is a schematic diagram schematically showing the structure of the waste radioactive organic solvent processing apparatus 1 according to an embodiment of the present invention.

<Description of main drawing code>

1: waste radioactive organic solvent treatment device 10: organic solvent separation unit

11 reactor 11a inlet hole

11b: supply hole 11c: pressure release

11d: exhaust pipe 11e: visual gauge

12: flocculant supply unit 13: mixer

14 reactor heating means 15 negative pressure gauge

20: decomposition agent supply unit 21: ozone supply unit

22: hydrogen peroxide supply unit 30: compression supply unit

40: filtration unit 41: gas discharge means

42: first pretreatment filter 43: ozone crusher

44: first organic removal filter 50: inorganic solvent filtration unit

51: second pretreatment filter 52: second organic removal filter

60: decompression unit 61: inorganic solvent storage unit

62: storage unit heating means 63: cooling means

64: water collector 65: the first shut-off valve

66: second shut-off valve 67: decompression means

Claims (7)

In the waste radioactive organic solvent processing apparatus for treating waste radioactive organic solvent containing inorganic components, The waste radioactive organic solvent supplied from the outside is separated into an organic solvent and an inorganic solvent by a coagulant, the separated inorganic solvent is discharged, and the organic solvent is separated into water and a gas component by a decomposition agent, An organic solvent separator being discharged; Degradant supply unit for supplying a decomposition agent to the organic solvent separation unit; A compression supply unit for feeding the decomposition agent supplied from the decomposition agent supply unit into the organic solvent separation unit and supplying the decomposition agent to the organic solvent separation unit in a supercritical state; A filtering unit for introducing the gas component discharged from the organic solvent separation unit and filtering the introduced gas component to the outside; An inorganic solvent filtration unit for introducing the inorganic solvent discharged from the organic solvent separation unit and filtering foreign substances and organic substances included in the inorganic solvent; The inorganic solvent in which the foreign matter and the organic material is filtered by the inorganic solvent filter unit is introduced, the inorganic solvent is separated into a flocculant and water, characterized in that it comprises a decompression unit for discharging the separated water to the outside Radioactive organic solvent processing device. The method of claim 1, The organic solvent separation unit On one side is formed an inlet hole into which the waste radioactive organic solvent supplied from the outside is introduced, and on the other side is formed a decomposer supply hole for decomposing the decomposer, a pressure release part is formed on the upper side, and a discharge pipe for discharging the inorganic solvent on the lower side. A reactor formed; A coagulant supply unit installed in the reactor and supplying a coagulant to the waste radioactive organic solvent through the inlet hole; A mixer installed at an inner lower surface of the reactor and agitating the decomposing agent and the waste radioactive organic solvent supplied through the decomposing agent supply hole; Reactor heating means installed on an outer circumferential surface of the reactor to heat the waste radioactive organic solvent and the decomposition agent; Installed in one side of the reactor, when the internal pressure of the reactor reaches a predetermined pressure, the waste radioactive organic solvent processing apparatus, characterized in that it comprises a negative pressure gauge to discharge only the excess pressure to the outside. The method of claim 1, The decomposition agent supply unit An ozone supply unit supplying ozone to the waste radioactive organic solvent separation unit; And And a hydrogen peroxide supplying unit for supplying hydrogen peroxide to the waste radioactive organic solvent separation unit. The method of claim 1, The filtration unit Gas discharge means for discharging the gas component discharged from the organic solvent separation unit to the outside; A first pretreatment filter installed on a discharge path of the gas component discharged by the gas discharge means and filtering foreign matter contained in the introduced gas component; An ozone crusher for crushing ozone contained in the gas component filtered with foreign matter; And Waste organic organic solvent processing apparatus comprising an organic removal filter for filtering the organic material contained in the gas component crushed ozone. The method of claim 1, The inorganic solvent filtration unit A second pretreatment filter for filtering foreign substances contained in the inorganic solvent discharged from the organic solvent separation unit; And Waste organic organic solvent processing apparatus comprising an organic material filtration filter for filtering the organic material contained in the inorganic solvent filtered the foreign matter. The method of claim 1, The decompression unit An inorganic solvent storage unit in which the inorganic solvent, in which foreign substances and organic substances are filtered, is introduced by the inorganic solvent filtering unit, and the introduced inorganic solvent is stored; Reactor heating means for heating the inorganic solvent stored in the inorganic solvent storage unit; Cooling means for cooling water vapor evaporated from the inorganic solvent heated by the reactor heating means; Waste water is condensed by the cooling means, the waste radioactive organic solvent processing apparatus, characterized in that it comprises a water collecting unit for discharging the stored water is formed in the lower discharge port to the outside. The method of claim 6, The decompression unit A first shut-off valve installed on an inflow path of the inorganic solvent flowing into the inorganic solvent storage unit; A second shut-off valve installed on an outlet of the water collecting unit; And a decompression means installed at a rear end of the cooling means to decompress the inorganic solvent storage part and the water collecting part, and guide the water vapor toward the cooling means.

Images