KR20100107299A - Radioactive oil processing system and radioactive oil processing method using the same - Google Patents

Radioactive oil processing system and radioactive oil processing method using the same Download PDF

Info

Publication number
KR20100107299A
KR20100107299A KR1020090025515A KR20090025515A KR20100107299A KR 20100107299 A KR20100107299 A KR 20100107299A KR 1020090025515 A KR1020090025515 A KR 1020090025515A KR 20090025515 A KR20090025515 A KR 20090025515A KR 20100107299 A KR20100107299 A KR 20100107299A
Authority
KR
South Korea
Prior art keywords
waste oil
radioactive
waste
water
heating
Prior art date
Application number
KR1020090025515A
Other languages
Korean (ko)
Inventor
김동균
Original Assignee
(주)한국원자력 엔지니어링
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)한국원자력 엔지니어링 filed Critical (주)한국원자력 엔지니어링
Priority to KR1020090025515A priority Critical patent/KR20100107299A/en
Publication of KR20100107299A publication Critical patent/KR20100107299A/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/005—Separating solid material from the gas/liquid stream
    • B01J8/006—Separating solid material from the gas/liquid stream by filtration
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/04—Treating liquids
    • G21F9/06—Processing
    • G21F9/08—Processing by evaporation; by distillation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/10—Liquid waste
    • F23G2209/102—Waste oil

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

PURPOSE: A radioactive waste oil treating apparatus and a radioactive waste oil treating method using the same are provided to maximize the purification treatment efficiency of the waste oil by efficiently removing the radioactive material and the water in the waste oil. CONSTITUTION: A heat processing apparatus(20) treats the water and the radioactive material in the waste oil by heating the radioactive oil. The heat processing apparatus comprises the flow paths(24a, 24b) and a heating bar(26) installed on the flow path. A water spaying unit(40) sprays the waste oil process by the heat processing apparatus in the fine grain state.

Description

Radioactive waste oil treatment apparatus and radioactive waste oil treatment method using same {RADIOACTIVE OIL PROCESSING SYSTEM AND RADIOACTIVE OIL PROCESSING METHOD USING THE SAME}

The present invention relates to a radioactive waste oil treatment apparatus and a radioactive waste oil treatment method using the same, and more particularly, to a radioactive waste oil treatment apparatus capable of maximizing the treatment efficiency of waste oil by efficiently removing and treating radioactive substances and water in the waste flow rate. It relates to a radioactive waste oil treatment method using the same.

In heavy and light water reactors, waste oil is generated from related facilities during operation, and the waste flow rate includes a large amount of radioactive materials such as gamma nuclide (radioactive particles), T-3 (tritium), and C-14 sludge. Included.

Radioactive materials in the waste stream, because of their high radioactivity, have a negative impact on workers and living organisms around the nuclear power plant if they are spilled outside.

Therefore, waste oils generated during the operation of a nuclear power plant should be removed or reduced below the "normal disposal limit" through appropriate purification processes before they are released to the outside.

As a technique for removing or reducing the radioactive material of the waste oil, there is a "radioactive waste oil treatment system and its processing method" of Korean Patent Registration No. 604003 filed by the applicant.

This technique stores the radioactive waste oil in a waste oil storage tank for a predetermined time to immerse and separate the water in the waste flow rate, and then rotates the separated radioactive waste oil in a centrifuge to separate fine water particles and fine radioactive sludge.

In addition, the radioactive waste oil is electrode-treated with an electrostatic ion refiner to separate fine water particles, gamma nuclides, and fine radioactive sludges from the waste stream, and the radioactive waste oil is filtered again with a filter to separate tritium.

However, such a conventional technique is effective in removing radionuclides, but has a disadvantage in that the removal efficiency of fine moisture and radioactive sludge is low. Due to these disadvantages, the problem of low purification efficiency of radioactive waste oil is pointed out.

In particular, since the fine water of the waste flow rate contains a large number of radioactive substances, the fine water cannot be sufficiently removed, and thus, there is a problem that the waste oil that has passed through the device is not sufficiently purified, and thus, the waste oil is reprocessed. The drawbacks to be pointed out are pointed out.

The present invention has been made to solve the conventional problems as described above, the object is, by efficiently removing the fine water and radioactive material contained in the radioactive waste oil, radioactive material that can maximize the radioactive material removal efficiency of the waste flow rate to the maximum To provide a waste oil treatment apparatus and a radioactive waste oil treatment method using the same.

Another object of the present invention is to provide a radioactive waste oil treatment apparatus and a method for treating radioactive waste oil using the same, by enhancing the separation and removal efficiency of radioactive material and water, thereby improving the purification treatment efficiency of radioactive waste oil.

In order to achieve the above object, the radioactive waste oil treatment apparatus according to the present invention is a radioactive waste oil treatment apparatus for removing water and radioactive substances of a waste flow rate, wherein the introduced radioactive waste oil is heat-treated to provide water and radioactive material of the waste flow rate. A heat treatment device for evaporating the water; Spraying means for spraying the waste oil treated by the heat treatment apparatus in a particulate state; And heating means for heating the waste oil particles sprayed by the spraying means to evaporate the water and the radioactive material of the waste flow rate.

Preferably, the heat treatment apparatus, the flow path through which the radioactive waste oil flows; A heat transfer rod installed on the flow path to heat the waste oil flowing along the flow path; It characterized in that it comprises an exhaust hood for trapping and discharging the evaporation gas of the radioactive material and moisture generated by the heating of the waste oil.

And the spray means, the storage tank for introducing and storing the waste oil discharged from the heat treatment device; A venturi nozzle connected to suck the waste oil of the storage tank and having a throat; It characterized in that it comprises a compressed air supply source for supplying high-pressure compressed air to the throat portion so that the venturi nozzle can suck and spray the waste oil of the storage tank.

In addition, the radioactive waste oil treatment method according to the present invention includes a radioactive waste oil treatment method for removing water and radioactive substances in a waste stream, the method comprising: evaporating water and radioactive material in the waste stream by heating the introduced radioactive waste oil; Spraying the evaporated waste oil into a particulate state; And heat treating the sprayed waste oil to secondary evaporation of the water and the radioactive material of the waste flow rate.

According to the radioactive waste oil treatment apparatus and the radioactive waste oil treatment method using the same according to the present invention, the water and the radioactive material of the waste flow rate are first removed through a heat treatment method, and then the water and radioactivity of the waste flow rate through the spray method and the heating method. Since the material is removed to the secondary treatment structure, there is an effect to maximize the removal efficiency of the water and radioactive material in the waste flow rate to the maximum.

In particular, the heating method in the state in which the waste oil is sprayed maximizes the removal efficiency of the water and the radioactive material contained in the waste flow rate. Therefore, there is an effect that can improve the purification efficiency of the waste oil to a higher level.

Hereinafter, a preferred embodiment of a radioactive waste oil treatment apparatus and a radioactive waste oil treatment method using the same according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view schematically showing the configuration of a radioactive waste oil treatment apparatus according to the present invention, FIG. 2 is a plan view showing a heat treatment apparatus constituting the radioactive waste oil treatment apparatus of the present invention, and FIG. 3 is a radioactive waste oil treatment of the present invention. It is sectional drawing which shows the spraying means which comprise an apparatus.

First, the radioactive waste oil treatment apparatus of the present invention includes a pump 10 and a heat treatment apparatus 20, as shown in FIG.

The pump 10 pumps radioactive waste oil, such as radioactive waste oil stored in a waste oil storage tank (not shown).

The heat treatment apparatus 20 has a body 22, as shown in FIGS. 1 and 2. The body 22 has a flow path 24 through which radioactive waste oil can flow, and a heat transfer rod 26 provided in the flow path 24.

The flow path 24 is open at the top, and includes an inlet port 24a on one side and an outlet port 24b on the other side.

One inlet port 24a is connected to the pump 10. Therefore, the waste oil discharged from the pump 10 is introduced into the flow path 24. The discharge port 24b on the other side discharges waste oil that has passed through all of the flow paths 24. Therefore, the waste oil after the heat treatment process is discharged to the outside.

The flow path 24 is configured to be inclined at a low angle toward the discharge port 24b from the inlet port 24a on one side. Therefore, the waste oil introduced into the inlet port 24a can be slowly transported toward the outlet port 24b at a slow speed.

The heat transfer rods 26 are arranged along the bottom surface of the flow path 24 and heat-process waste oil flowing along the flow path 24 while generating heat by an applied power source.

The heat transfer rod 26 serves to evaporate and separate the water and radioactive substances contained in the waste flow rate by heating the waste oil flowing along the flow path 24 to increase the temperature of the waste oil. Thus, water and radioactive substances of the waste flow rate can be evaporated while being efficiently separated from the oil particles.

On the other hand, the exhaust hood 28 is provided in the upper part of the flow path 24. The exhaust hood 28 collects radioactive material and evaporation gas of moisture generated by heating waste oil, and then discharges the collected evaporated gas. Here, the boil-off gas discharged to the exhaust hood 28 is purified through a separate purification treatment device (not shown).

Referring back to FIG. 1, in the radioactive waste oil treatment apparatus of the present invention, the waste tank 30 storing waste oil discharged from the heat treatment apparatus 20 and the waste oil stored in the storage tank 30 are sprayed in a particulate state. It comprises a spray means 40 for heating, and a heating means 50 for heating the waste oil sprayed in the particulate state.

The storage tank 30 is provided with the storage chamber 32 inside, as shown in FIG. The storage chamber 32 is connected to the outlet 24b of the heat treatment device 20. Therefore, waste oil discharged from the heat treatment apparatus 20 is introduced and stored.

The spray means 40 includes a suction pipe 42 capable of sucking waste oil stored in the storage tank 30 to the outside, a venturi nozzle 44 provided at an end of the suction pipe 42, and a venturi nozzle 44. Compressed air supply source 46 for supplying high pressure air to the throat (44) of the throat (Throat).

The suction pipe 42 is provided at the inlet portion 30a of the storage tank 30 and extends long into the storage chamber 32. It is configured to suck up the waste oil stored in the storage compartment (32).

The venturi nozzle 44 is gradually disposed from the waste oil introduction portion 44a for introducing waste oil from the suction pipe 42, the throat portion 44b gradually decreasing in diameter from the waste oil introduction portion 44a, and the throat portion 44b. The injection part 44c which becomes wider in diameter, and the compressed air introduction part 44d for introducing compressed air into the throat part 44b are provided.

In particular, the compressed air introduction portion 44d lowers the pressure of the throat portion 44b by introducing high pressure compressed air into the throat portion 44b. Therefore, the waste oil of the storage tank 30 can be sucked into the waste oil introduction portion 44a and the throat portion 44b where the pressure is lowered. This allows the sucked waste oil to be sprayed into the particulate state while passing through the throat 44b and the jet 44c together with the air.

Here, the spraying of the waste oil is made in the heating chamber 60, in which the heating chamber 60 blocks the waste oil fine particles sprayed from the venturi nozzle 44 from the outside.

The compressed air supply source 46 is comprised with an air pump. The air pump pumps the air, compresses the air, and then introduces the compressed air into the compressed air inlet 44d of the venturi nozzle 44.

Another example of a compressed air source 46 is a compressed air storage container for storing compressed air. The compressed air storage container stores compressed air of a high pressure, and supplies the stored compressed air to the compressed air introduction portion 44d of the venturi nozzle 44.

The heating means 50 is comprised with the electric heater 52 provided in the periphery of the injection part 44c of the venturi nozzle 44. As shown in FIG. The electric heater 52 heats waste oil in a particulate state sprayed from the venturi nozzle 44 while generating heat in accordance with an applied power source.

The heating means 50 serves to evaporate the water and radioactive substances contained in the waste oil fine particles by heating the waste oil sprayed in the particulate state. Thus, the water and radioactive material of the waste flow rate can be efficiently separated and removed.

Meanwhile, the evaporated gas of the water and the radioactive material separated from the waste oil fine particles is discharged through the exhaust port 62 of the heating chamber 60, and the discharged evaporated gas is purified through a separate purification treatment device (not shown). do.

Referring back to FIG. 1, the radioactive waste oil treatment apparatus of the present invention includes a collection hopper 70 for collecting waste oil fine particles and a filtration device 80 for filtering the waste oil collected in the collection hopper 70. .

The collection hopper 70 is installed at the bottom surface of the heating chamber 60 and receives and collects waste oil in a particulate state falling to the bottom. The lower portion of the collecting hopper 70 is provided with a discharge port 72 for discharging the collected waste oil.

The filtration device 80 includes a filter housing 82 and a filter cartridge 90 provided inside the filter housing 82.

The filter housing 82 includes a waste oil inlet 84, a waste oil outlet 85, and a foreign matter outlet 86.

The waste oil inlet 84 is connected to the outlet 72 of the collection hopper 70. Therefore, the waste oil of the collection hopper 70 is introduced inside. Waste oil outlet 85 discharges the waste oil passed through the inside. Therefore, the waste oil after the filtration process is discharged to the outside.

The foreign matter discharge port 86 is provided at the bottom of the filter housing 82, and discharges foreign matter filtered by the filter cartridge 90, for example, water, radioactive sludge, and the like.

Each of the waste oil inlet 84, the waste oil outlet 85, and the foreign matter outlet 86 is provided with opening / closing valves 84a, 85a, 86a, and these waste oil inlet 84, the waste oil outlet 85, and the foreign matter The outlets 86 are opened and closed by on / off valves 84a, 85a, 86a, respectively.

The filter cartridge 90 filters the waste oil conveyed from the waste oil inlet 84 to the waste oil outlet 85. In particular, it blocks moisture and passes oil.

Therefore, fine foreign matter, especially fine water, tritium, fine radioactive sludge and the like contained in the waste flow rate are finally separated and removed. This increases the purification efficiency of the waste oil.

On the other hand, such a filter cartridge 90 may be interposed in a rolled form, or may be interposed in a continuously folded form. Since the filter cartridge 90 having such a configuration is already known, a detailed description thereof will be omitted.

The filter cartridge 90 is configured to be replaceable through a cover 88 that seals the filter housing 82.

According to the radioactive waste oil treatment apparatus of the present invention having the above configuration, the water and the radioactive material of the waste flow rate are first removed through a heat treatment method, and the water and radioactivity of the waste flow rate are simultaneously used by spraying and heating. Since the material is secondaryly removed, the water and radioactive material in the waste stream can be efficiently removed.

In particular, the heating method in the state in which the waste oil is sprayed maximizes the removal efficiency of the water and the radioactive material contained in the waste flow rate. Therefore, the purification efficiency of waste oil can be improved to a higher level.

Next, the waste oil treatment method using the waste oil treatment apparatus of the present invention having such a configuration will be described in detail with reference to FIGS. 1 and 4.

First, the waste oil generated in the related facilities of the nuclear power plant is pumped by the pump 10 (S101). Then, the pumped waste oil flows along the flow path 24 while being introduced into the inlet 24a of the heat treatment device 20, and the waste oil flowing along the flow path 24 is heated by the heating rod 26 ( S103).

On the other hand, the heat of the waste oil is heated, at this time, when the temperature of the waste oil rises, the moisture and radioactive substances of the waste flow rate begins to evaporate (S105), the water and radioactive substances thus evaporated are separated from the waste oil and the primary It is processed to remove.

The waste oil that has been primarily processed is introduced into the storage tank 30 while being discharged to the outlet 24b of the heat treatment apparatus 20, and the introduced waste oil is stored in the storage tank 30 (S107).

The waste oil stored in the storage tank 30 is sucked into the suction pipe 42 by the low pressure formed in the throat portion 44b of the venturi nozzle 44, and the waste oil sucked into the suction pipe 42 is venturi nozzle 44. Sprayed in the form of fine particles together with the compressed air of high pressure while passing through the throat portion (44b) and the injection portion (44c) of (S109).

And the waste oil sprayed in the form of fine particles is heated by the electric heaters 52 around (S111). At this time, the water and the radioactive material in the waste oil fine particles are evaporated by the high temperature of the electric heater 52 (S113), the water and the radioactive material thus evaporated is separated from the waste oil and secondaryly removed.

On the other hand, the waste oil processed secondarily is collected while falling to the lower collection hopper 70 (S115). The collected waste oil is finally introduced into the filtration device 80, and the waste oil introduced into the filtration device 80 is filtered by the filter cartridge 90 in a third step (S117).

And the waste oil filtered by the third is discharged to the outside through the waste oil outlet 85 of the filtration device 80 to complete the purification process.

After the purification process, the waste oil is purified by removing radioactive substances contained therein, especially radioactive substances such as water, gamma nuclide, T-3, and C-14 sludge.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope of the claims.

1 is a view showing the configuration of a radioactive waste oil treatment apparatus according to the present invention,

2 is a plan view showing a heat treatment device constituting the radioactive waste oil treatment device of the present invention;

3 is a cross-sectional view showing the spray means constituting the radioactive waste oil treatment apparatus of the present invention,

Figure 4 is a block diagram showing a radioactive waste oil treatment method using a radioactive waste oil treatment apparatus according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

10: pump 20: heat treatment device

22: body 24: euro

26: electric heating rod 28: exhaust hood

30: storage tank 40: spraying means

42: suction pipe 44: Venturi nozzle

44a: waste oil introduction portion 44b: Throat portion

44c: injection part 46: compressed air source

50: heating means 52: electric heater

60: heating chamber 70: collecting hopper

80: filtration device 82: filter housing (Filter Housing)

90: Filter Cartridge

Claims (8)

In the radioactive waste oil treatment apparatus for removing water and radioactive substances of the waste flow rate, A heat treatment device 20 for heating the introduced radioactive waste oil to evaporate the water and the radioactive material of the waste flow rate; Spray means (40) for spraying the waste oil treated in the heat treatment apparatus (20) in a particulate state; And a heating means (50) for heating the waste oil particles sprayed by the spraying means (40) to evaporate the water and the radioactive material of the waste flow rate. The method of claim 1, The heat treatment device 20, A flow path 24 through which the radioactive waste oil can flow; A heat transfer rod (26) installed on the flow path (24) so as to heat the waste oil flowing along the flow path (24); And an exhaust hood (28) for collecting and discharging the evaporation gas of the radioactive material and moisture generated by the heating of the waste oil. The method of claim 1, The spray means 40, A storage tank 30 for introducing and storing waste oil discharged from the heat treatment device 20; A venturi nozzle 44 connected to suction the waste oil of the storage tank 30 and having a throat 44b; It characterized in that it comprises a compressed air supply source 46 for supplying high-pressure compressed air to the throat portion (44b) so that the venturi nozzle 44 can suck and spray the waste oil of the storage tank (30) Radioactive waste oil treatment apparatus. The method of claim 1, Spraying of the waste oil by the spraying means (40) and the heating of the waste oil by the heating means (50) is a radioactive waste oil treatment apparatus, characterized in that the heating chamber 60 is cut off from the outside air. 5. The method according to any one of claims 1 to 4, And a filtration device (80) for filtering the waste oil treated by the heating means (50) to remove water and radioactive substances in the waste flow rate. The method of claim 5, The filtration device 80, A filter housing (82) having a waste oil inlet (84), a waste oil outlet (85), and a bottom foreign matter outlet (86); And a filter cartridge (90) installed interchangeably in the filter housing (82) so as to filter the waste oil transferred from the waste oil inlet (84) to the waste oil outlet (85). Waste oil treatment unit. In the radioactive waste oil treatment method for removing water and radioactive substances of the waste flow rate, Heating the introduced radioactive waste oil to evaporate the water and the radioactive material of the waste stream; Spraying the evaporated waste oil into a particulate state; And heat treating the sprayed waste oil by secondary evaporation of the water and the radioactive material of the waste flow rate. The method of claim 7, wherein And heating the waste oil fine particles to evaporate the water and the radioactive material, and then filtering out and removing the water and the radioactive material of the waste flow rate through a filter.
KR1020090025515A 2009-03-25 2009-03-25 Radioactive oil processing system and radioactive oil processing method using the same KR20100107299A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090025515A KR20100107299A (en) 2009-03-25 2009-03-25 Radioactive oil processing system and radioactive oil processing method using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090025515A KR20100107299A (en) 2009-03-25 2009-03-25 Radioactive oil processing system and radioactive oil processing method using the same

Publications (1)

Publication Number Publication Date
KR20100107299A true KR20100107299A (en) 2010-10-05

Family

ID=43129128

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090025515A KR20100107299A (en) 2009-03-25 2009-03-25 Radioactive oil processing system and radioactive oil processing method using the same

Country Status (1)

Country Link
KR (1) KR20100107299A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011051298A1 (en) 2010-10-29 2012-05-03 Hyundai Motor Co. Door joint structure for vehicle occupant airbags
RU2461902C1 (en) * 2011-07-26 2012-09-20 Федеральное государственное унитарное предприятие "Научно-исследовательский технологический институт имени А.П. Александрова" Method to decontaminate radioactive organic wastes
KR102014849B1 (en) * 2018-11-27 2019-08-27 (주)한국원자력 엔지니어링 Method for processing radioactive waste cocktails
KR20210008982A (en) 2019-07-15 2021-01-26 현대자동차주식회사 Hinge Structure for Air-bag Door

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011051298A1 (en) 2010-10-29 2012-05-03 Hyundai Motor Co. Door joint structure for vehicle occupant airbags
RU2461902C1 (en) * 2011-07-26 2012-09-20 Федеральное государственное унитарное предприятие "Научно-исследовательский технологический институт имени А.П. Александрова" Method to decontaminate radioactive organic wastes
KR102014849B1 (en) * 2018-11-27 2019-08-27 (주)한국원자력 엔지니어링 Method for processing radioactive waste cocktails
KR20210008982A (en) 2019-07-15 2021-01-26 현대자동차주식회사 Hinge Structure for Air-bag Door

Similar Documents

Publication Publication Date Title
TWI604879B (en) Industrial separator and dewatering plant
CN206588076U (en) A kind of Chinese medicinal material cleaning machine
JPH0638120B2 (en) Method and apparatus for decontaminating a portion contaminated with radioactive material
KR101205299B1 (en) Coolant cleaning device for machine tool
ES2527858T3 (en) Uranium recovery in an ultrasonic countercurrent screw extractor
KR20100107299A (en) Radioactive oil processing system and radioactive oil processing method using the same
US5302324A (en) Method for decontaminating substances contaminated with radioactivity, and method for decontaminating the materials used for said decontamination
JP2006205138A (en) Washing device, washing method, washing plant and washing process, using purified water
KR20130103043A (en) Desalting, dehydration and foreign substances removal system for recycleing of waste net
KR20150074365A (en) The industrial cleaner which removes pollutants from cleaning water by using waste heat
JP2013501610A (en) Swimming pool filtration device
US20150251744A1 (en) Method for Treating Ballast Water and Device for Treating Ballast Water
CN107262519B (en) Radioactive contaminated soil purification system
JP5051921B2 (en) Suction cleaning car with wash water recycling mechanism
KR101663469B1 (en) Method for removing mercury using automatic disposal system of mercury-containing waste
KR100604003B1 (en) Radioactive oil processing system and method for processing thereof
KR101943483B1 (en) Apparatus for treating contamination sediment
KR20100046991A (en) Dust collecting apparatus
CN108380426B (en) A kind of environmental protection paint spraying booth with pollutant handling arrangement
CN106237787B (en) A kind of leather spraying dust-extraction unit
RU2638951C1 (en) Method for deactivating solid radioactive waste with ice granules
ES2783832T3 (en) Method for washing and separating pieces of plastic material, and washing and separating group for pieces of plastic
KR100675941B1 (en) Radioactive oil processing method and apparatus using the same
KR101880260B1 (en) Sludge separation unit
US5637212A (en) Dry cleaning waste water treatment machine having recirculating arrangement

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application