Radioactive organic waste liquid treatment system and process thereof

Abstract

The radioactive organic waste liquid treatment system comprises a transfer tank used for receiving and temporarily storing an organic waste liquid; the input end of the filling pump is communicated with the transfer tank, the output end of the filling pump is connected with a catalytic oxidation reactor, and the filling pump is used for conveying the waste liquid in the transfer tank into the catalytic oxidation reactor; the catalytic oxidation reactor is used for carrying out oxidation reaction treatment on the organic waste liquid, a tail gas outlet is formed in the top of the catalytic oxidation reactor, and the tail gas outlet is connected with a filtering mechanism; the filtering mechanism is used for capturing and removing tiny dust in the tail gas; inorganic treatment is carried out by adopting a catalytic oxidation method, compared with common combustion reaction, a large amount of dispersed tail gas is avoided, and effluents can be controlled; compared with a wet oxidation method, the method provided by the invention has the advantages that the reaction is more complete, and the secondary waste quantity is less, so that the treatment efficiency is higher, the effluent in the treatment process is easy to control, the waste cannot pollute the environment, and the operation is safer.

Description

Technical Field

[0001] The invention relates to the technical field of organic waste liquid treatment, and in particular to a radioactive organic waste liquid treatment system and process thereof. Background Art

[0002] At present, there is no treatment method for radioactive trioctylamine-xylene at home and abroad. There are many treatment methods for similar organic waste liquids, such as cement solidification, high-integrity containers, thermal organic treatment, radionuclide separation, plasma oxidation technology and wet oxidation. Among them, long-term storage of high-integrity containers will lead to the biological growth of organic matter and produce radiolysis gas, which is expensive and has high treatment costs; thermal organic treatment will increase the volume by 3-5 times, the system is complex, the investment and operation costs are high, and the dehydration and drying operations of the inclusion body will produce odorous gases, which are not easy to handle and are easy to cause environmental pollution; radionuclide separation will produce secondary concentrated liquid, and the radionuclides in the inclusion body cannot be completely separated, and the amount of waste increases; plasma oxidation process has high investment and short research time, and no substantial engineering progress has been made due to the generation of harmful gases such as NOx and SO2 in the tail gas; saponification reaction or inorganic adsorbent is used to convert organic waste liquid into solid waste, which is temporarily stored in the intermediate waste barrel and subsequently treated and disposed of as alpha waste, but this adsorption is usually surface adsorption, and under the influence of external pressure and other factors, organic waste liquid and radionuclides are easily leached. Summary of the invention

[0003] In view of the problems existing in the above-mentioned existing radioactive trioctylamine-xylene organic waste liquid system and process, the present invention is proposed.

[0004] Therefore, the object of the present invention is to provide a radioactive organic waste liquid treatment system and process.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A radioactive organic waste liquid treatment system, comprising:

[0007] Transfer tank, which is used to receive and temporarily store organic waste liquid;

[0008] A filling pump, whose input end is connected to the transfer tank and whose output end is connected to the catalytic oxidation reactor, and the filling pump is used to transport the waste liquid in the transfer tank to the catalytic oxidation reactor;

[0009] A catalytic oxidation reactor is used to carry out oxidation reaction treatment on organic waste liquid, and a tail gas outlet is provided on the top thereof, and the tail gas outlet is connected to a filtering mechanism;

[0010] The filtering mechanism is used to capture and remove the tiny dust in the exhaust gas.

[0011] As a preferred solution of the radioactive organic waste liquid treatment system of the present invention, wherein: a discharge port is provided at the bottom of the catalytic oxidation reactor, and the discharge port at the bottom of the catalytic oxidation reactor is connected to a collection tank;

[0012] As a preferred solution of the radioactive organic liquid waste treatment system of the present invention, the collection tank is used to collect waste discharged from the catalytic oxidation reactor.

[0013] As a preferred solution of the radioactive organic waste liquid treatment system of the present invention, the filtering mechanism includes a wet dust collector, an activated carbon storage tank and a high-efficiency filter, and the exhaust gas discharged from the catalytic oxidation reactor is filtered in sequence through the wet dust collector, the activated carbon storage tank and the high-efficiency filter.

[0014] As a preferred solution of the radioactive organic waste liquid treatment system of the present invention, wherein: the catalytic oxidation reactor comprises a reaction chamber, the reaction chamber is filled with a catalyst, and the reaction chamber provides a reaction space for the organic waste liquid and the catalyst;

[0015] The reaction chamber is also provided with a stirrer, and the stirrer stirs the organic waste liquid and the catalyst in the reaction chamber;

[0016] A preheating system is provided inside the reaction chamber wall, which can heat the reaction chamber to increase the temperature inside the reaction chamber.

[0017] As a preferred solution of the radioactive organic waste liquid treatment system of the present invention, a compressed air inlet is arranged at the bottom of the catalytic oxidation reactor. During the reaction process inside the catalytic oxidation reactor, the compressed air inlet fills the catalytic oxidation reactor with compressed air to enable continuous regeneration of the catalyst.

[0018] As a preferred solution of the radioactive organic waste liquid treatment system of the present invention, a pressure gauge is also provided on the upper part of the catalytic oxidation reactor, which can detect the pressure inside the catalytic oxidation reactor and control the pressure value inside the catalytic oxidation reactor to 0-20KPa.

[0019] A radioactive organic waste liquid treatment process, comprising the above radioactive organic waste liquid treatment system, and,

[0020] Pour the organic waste liquid into the transfer tank;

[0021] After the catalyst is pre-loaded in the reaction chamber, the stirrer is turned on for stirring, and the output speed of the stirrer is set;

[0022] After stirring for 1 minute, the preheating system was turned on to preheat the catalyst, and the preheating system was temporarily turned off after the temperature inside the reaction chamber reached the set reaction temperature;

[0023] The organic waste liquid is then quantitatively transported to the catalytic oxidation reactor by a filling pump, and the organic waste liquid is transported into the catalytic oxidation reactor by compressed air with a flow rate, and the organic waste liquid reacts with oxygen in the compressed air under the action of a catalyst to generate solid residue and tail gas after the reaction;

[0024] The tail gas generated by the reaction is discharged from the top of the reactor and passes through the wet dust collector, activated carbon storage tank and high-efficiency filter in sequence before being discharged;

[0025] The solid residue produced by the reaction is discharged into a collecting tank through the discharge port at the bottom of the catalytic oxidation reactor.

[0026] As a preferred solution of the process for treating radioactive organic waste liquid of the present invention, the catalyst is a mixture of metal oxides.

[0027] As a preferred solution of the radioactive organic waste liquid treatment process of the present invention, wherein: the output speed of the stirrer is 30-60r / min.

[0028] As a preferred solution of the radioactive organic waste liquid treatment process of the present invention, the organic waste liquid can be poured into the catalytic oxidation reactor in an intermittent feeding manner.

[0029] The beneficial effects of the present invention are as follows: by adopting a catalytic oxidation method for inorganic treatment, compared with a general combustion reaction, this method does not have a large amount of diffused tail gas, the effluent can be controlled, and effective subsequent treatment can be carried out; compared with a wet oxidation method, the reaction is more complete and the amount of secondary waste is less. Therefore, compared with existing treatment schemes, the present invention has higher treatment efficiency and can better ensure the safety of workers. In addition, the effluent in the treatment process is easy to control, so that the waste will not pollute the environment, and the operation is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0031] Figure 1 It is a schematic diagram of the overall structure of the system of the present invention.

[0032] Figure 2 It is a schematic diagram of the structure of the catalytic oxidation reactor (300) in the present invention.

[0033] Figure 3 It is a schematic structural diagram of the filtering mechanism (500) in the present invention. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0037] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0038] Example 1

[0039] Reference Figure 1 - Figure 3 , provides a radioactive organic waste liquid treatment system, comprising,

[0040] The transfer tank 100 is used to receive and temporarily store organic waste liquid;

[0041] A filling pump 200, whose input end is connected to the transfer tank 100 and whose output end is connected to the catalytic oxidation reactor 300, and the filling pump 200 is used to transport the waste liquid in the transfer tank 100 to the catalytic oxidation reactor 300;

[0042] The catalytic oxidation reactor 300 is used to perform oxidation reaction treatment on the organic waste liquid, and a tail gas outlet is provided on the top thereof, and the tail gas outlet is connected to a filtering mechanism 500;

[0043] The filter mechanism 500 is used to capture and remove fine dust in the exhaust gas;

[0044] The transfer tank 100 is connected to the filling pump 200 through a pipeline; the filling pump 200 is connected to the catalytic oxidation reactor 300 through a pipeline. The transfer tank 100 is provided with a conical funnel as a feeding port. The bottom outlet pipe of the transfer tank 100 is provided with a pressure transmitter, which can convert the pressure value into a liquid level value, and can continuously measure the liquid level in the transfer tank 100. A liquid level high limit alarm (80L) is also provided. The filling pump 200 is a plunger pump with a flow rate of 2L / h, which is continuously adjustable. The filling pump 200 completes precise feeding flow metering of the organic waste liquid.

[0045] Furthermore, a discharge port is provided at the bottom of the catalytic oxidation reactor 300, and the discharge port at the bottom of the catalytic oxidation reactor 300 is connected to the collecting tank 400;

[0046] The collecting tank 400 is used to collect waste discharged from the catalytic oxidation reactor 300;

[0047] The discharge port of the catalytic oxidation reactor 300 is provided with a vibrator and compressed air backflush to assist in the complete discharge of the reaction residue.

[0048] Furthermore, the filtering mechanism 500 includes a wet dust collector 501, an activated carbon storage tank 502, and a high-efficiency filter 503, and the exhaust gas discharged from the catalytic oxidation reactor 300 is filtered in sequence through the wet dust collector 501, the activated carbon storage tank 502, and the high-efficiency filter 503;

[0049] The exhaust gas after dust removal by the filtering mechanism 500 is discharged from the factory exhaust system. The wet dust collector 501 is provided with a glass connecting vessel for observing the change of water level in the tank. A differential pressure gauge is also provided at the front end of the high-efficiency filter 503 for observing the pressure difference change of the high-efficiency filter 503. An online VOC detector is provided at the exhaust gas outlet for real-time detection of the organic gas content in the exhaust gas to check whether the reaction is complete.

[0050] Furthermore, the catalytic oxidation reactor 300 includes a reaction chamber 301, in which a catalyst is loaded, and the reaction chamber 301 provides a reaction space for the organic waste liquid and the catalyst;

[0051] The reaction chamber 301 is also provided with a stirrer 302, and the stirrer 302 stirs the organic waste liquid and the catalyst in the reaction chamber 301;

[0052] A preheating system is provided inside the wall of the reaction chamber 301, which can heat the reaction chamber 301 to increase the temperature inside the reaction chamber 301;

[0053] The effective volume of the reaction chamber 301 is about 30L, which is used to load the catalyst and carry out the reaction. The effective loading volume is about 25L (equivalent to 15kg).

[0054] The upper part of the reaction chamber 301 is a cylindrical head, and the lower part is a conical structure. The tail gas outlet is set at the top of the cylindrical structure, and the waste residue produced after catalytic oxidation is discharged through the discharge port at the bottom of the conical structure;

[0055] A stirrer 302 is provided in the columnar structure, and a stirring motor is provided above the catalytic oxidation reactor 300 to control the rotation of the stirrer 302; the stirrer 302 is a three-blade stirrer, and three stirring blades are longitudinally distributed on the stirrer 302 to achieve full stirring of the catalyst; the rotating shaft of the stirrer 302 is a hollow structure, and the organic waste liquid is added to the bottom of the catalytic oxidation reactor 300 through the hollow shaft to ensure full mixing with the catalyst and complete reaction;

[0056] The preheating system of the catalytic oxidation reactor 300 adopts electric heating, which is wrapped around the cylinder part of the reaction chamber 301 and the bottom cone head, and provides the required initial reaction temperature through preheating. The reactor heating power is about 5KW; thermometers are set inside and outside the catalytic oxidation reactor 300 to detect the internal temperature of the reactor and the jacket temperature.

[0057] Furthermore, a compressed air inlet is provided at the bottom of the catalytic oxidation reactor 300. During the reaction process inside the catalytic oxidation reactor 300, the compressed air inlet fills the catalytic oxidation reactor 300 with compressed air to enable continuous regeneration of the catalyst.

[0058] Furthermore, a pressure gauge is also provided on the upper part of the catalytic oxidation reactor 300, which can detect the pressure inside the catalytic oxidation reactor 300 and control the pressure value inside the catalytic oxidation reactor 300 to be 0-20KPa.

[0059] By adopting the catalytic oxidation method for inorganic treatment, compared with the general combustion reaction, this method does not have a large amount of diffused tail gas, the effluent can be controlled, and effective subsequent treatment can be carried out; compared with the wet oxidation method, the reaction is more complete and the amount of secondary waste is less. Therefore, compared with the existing treatment scheme, the present invention has higher treatment efficiency and can better ensure the safety of the staff. The effluent in the treatment process is easy to control, so that the waste will not pollute the environment and the operation is safer.

[0060] Example 2

[0061] Reference Figure 1 - Figure 3 , this embodiment is different from the first embodiment in that: a radioactive organic waste liquid treatment process, comprising the above-mentioned radioactive organic waste liquid treatment system, and,

[0062] The organic waste liquid is poured into the transfer tank 100;

[0063] After the catalyst is pre-loaded in the reaction chamber 301, the stirrer 302 is turned on for stirring, and the output speed of the stirrer 302 is set;

[0064] After stirring for 1 minute, the preheating system is turned on to preheat the catalyst, and the preheating system is temporarily turned off after the temperature inside the reaction chamber (301) reaches the set reaction temperature;

[0065] Then, the filling pump 200 quantitatively delivers the organic waste liquid to the catalytic oxidation reactor 300, and the organic waste liquid is delivered into the catalytic oxidation reactor 300 by compressed air with a flow rate, and the organic waste liquid reacts with oxygen in the compressed air under the action of the catalyst, and solid residue and tail gas are generated after the reaction;

[0066] The tail gas generated by the reaction is discharged from the top of the reactor and passes through the wet dust collector 501, the activated carbon storage tank 502 and the high-efficiency filter 503 in sequence before being discharged;

[0067] The solid residue produced by the reaction is discharged into the collecting tank 400 through the bottom discharge port of the catalytic oxidation reactor 300;

[0068] The catalyst is a mixture formed of metal oxides;

[0069] The stirrer 302 has an output speed of 30-60 r / min;

[0070] The organic waste liquid can be poured into the catalytic oxidation reactor 300 by intermittent feeding;

[0071] The feed rate is 260±10mL / h; the thermometer data measuring the temperature inside the reactor during the reaction shall not be lower than the set initial reaction temperature (190±20℃), and the jacket temperature shall not exceed 300℃. When it is lower than the set temperature, the heating system shall be turned on to ensure that the catalytic oxidation reaction is stable and continuous;

[0072] The compressed air flow rate is controlled at 1.5±0.5m3 / h;

[0073] The catalytic oxidation reaction is a normal pressure reaction. During the reaction, the internal pressure of the reactor is controlled not to exceed 20KPa, and the VOC content at the exhaust port is controlled not to exceed 1%. If either the pressure or the VOC value exceeds the standard, the filling pump 200 should be immediately shut down for feeding;

[0074] When the solid residue is discharged, the vibrator at the bottom of the reactor is turned on first, and then the unloading backflush switch at the bottom of the reactor is turned on for auxiliary unloading, and finally all the residue is discharged into the collection tank 400.

[0075] The above process can efficiently treat organic waste liquid, and the waste generated during the treatment can be collected or treated in time, making the treatment process safe and environmentally friendly.

[0076] The rest of the structure is the same as that of Example 1.

[0077] Example 3

[0078] Reference Figure 1 - Figure 3 , this embodiment is different from the above embodiment in that: in this embodiment, taking 10L of trioctylamine-xylene waste liquid as an example, the organic waste liquid is treated by the above-mentioned radioactive organic waste liquid treatment process;

[0079] Pour 10L of organic waste liquid into the transfer tank 100 through the transfer tank 100 feed funnel;

[0080] Then 16 kg of catalyst is pre-loaded into the reaction chamber 301;

[0081] Start the reactor stirring and set the stirring reducer output speed to 60r / min;

[0082] After stirring for 1 min, turn on the electric heating to preheat the catalyst to 190°C. After the internal temperature of the reactor reaches 190°C, temporarily turn off the electric heating. During the reaction, the internal temperature of the reactor is maintained at 190±20°C by starting and stopping the electric heating, and ensure that the reactor jacket temperature does not exceed 300°C.

[0083] Start the filling pump 200, add the organic waste liquid into the catalytic oxidation reactor 300 at a rate of 260 mL / h through the filling pump 200, send compressed air into the catalytic oxidation reactor 300 at a rate of 1.5 m3 / h, and the organic waste liquid reacts with oxygen in the compressed air under the action of the catalyst to generate solid residue and tail gas;

[0084] The tail gas generated by the reaction is discharged from the top of the catalytic oxidation reactor 300 and passes through the wet dust collector 501, the activated carbon storage tank 502 and the high-efficiency filter 503 in sequence before being discharged;

[0085] The solid residue produced by the reaction is discharged into the collecting tank 400 through the bottom discharge port of the catalytic oxidation reactor 300;

[0086] When the solid residue is discharged from the collecting tank 400, first open the bottom vibrator of the catalytic oxidation reactor 300, turn on the discharge backflush switch, set the backflush to automatically close after 1 second, and then open the bottom discharge valve to discharge the solid residue.

[0087] Using the above method, the test data of this embodiment under the catalytic oxidation treatment of 10L trioctylamine-xylene waste liquid are as follows:

[0088]

[0089] The present invention catalytically oxidizes trioctylamine-xylene into gas and reaction residues, and most of TOA and xylene are completely catalytically oxidized into carbon dioxide, nitric oxide and nitrogen dioxide. The content of volatile organic matter in tail gas is low, and the catalytic oxidation effect is good. Radioactive organic waste liquid can be harmlessly treated and reduced in volume. At the same time, the inorganic rate of trioctylamine-xylene after catalytic oxidation is greater than 95%, which is conducive to subsequent solidification treatment.

[0090] The present invention adds a catalyst during the reaction process and controls the required temperature at about 200°C, which is 20% of the combustion temperature under normal pressure. It has low heat loss and is energy-saving and environmentally friendly. Compared with the direct incineration method, it has low equipment requirements and low equipment investment costs.

[0091] The rest of the structure is the same as that of Example 2.

[0092] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0093] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0094] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0095] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A radioactive organic waste liquid treatment system, characterized in that: include, A transfer tank (100) for receiving and temporarily storing organic waste liquid; a filling pump (200), the input end of which is in communication with the transfer tank (100), and the output end of which is connected to the catalytic oxidation reactor (300), the filling pump (200) being used to transport the waste liquid in the transfer tank (100) to the catalytic oxidation reactor (300); A catalytic oxidation reactor (300) is used to perform an oxidation reaction on the organic waste liquid, and a tail gas outlet is provided on the top thereof, and the tail gas outlet is connected to a filtering mechanism (500); The filtering mechanism (500) is used to capture and remove fine dust in the exhaust gas.

2. The radioactive organic waste liquid treatment system according to claim 1, characterized in that: The catalytic oxidation reactor (300) is provided with a discharge port at the bottom, and the discharge port at the bottom of the catalytic oxidation reactor (300) is connected to the collecting tank (400); The collecting tank (400) is used to collect waste discharged from the catalytic oxidation reactor (300).

3. The radioactive organic waste liquid treatment system according to claim 2, characterized in that: The filtering mechanism (500) comprises a wet dust collector (501), an activated carbon storage tank (502) and a high-efficiency filter (503), and the tail gas discharged from the catalytic oxidation reactor (300) is filtered by passing through the wet dust collector (501), the activated carbon storage tank (502) and the high-efficiency filter (503) in sequence.

4. The radioactive organic waste liquid treatment system according to claim 3, characterized in that: The catalytic oxidation reactor (300) comprises a reaction chamber (301), in which a catalyst is loaded, and the reaction chamber (301) provides a reaction space for the organic waste liquid and the catalyst; The reaction chamber (301) is further provided with a stirrer (302), and the stirrer (302) stirs the organic waste liquid and the catalyst in the reaction chamber (301); A preheating system is provided inside the wall of the reaction chamber (301), which can heat the reaction chamber (301) to increase the temperature inside the reaction chamber (301).

5. The radioactive organic waste liquid treatment system according to claim 4, characterized in that: A compressed air inlet is provided at the bottom of the catalytic oxidation reactor (300). During the reaction process inside the catalytic oxidation reactor (300), the compressed air inlet fills the catalytic oxidation reactor (300) with compressed air to enable continuous regeneration of the catalyst.

6. The radioactive organic waste liquid treatment system according to claim 5, characterized in that: A pressure gauge is also provided on the upper part of the catalytic oxidation reactor (300), which can detect the pressure inside the catalytic oxidation reactor (300) and control the pressure value inside the catalytic oxidation reactor (300) to be 0-20 KPa.

7. A process for treating radioactive organic waste liquid, characterized in that: A radioactive organic waste liquid treatment system comprising any one of claims 1 to 6, and Pour the organic waste liquid into the transfer tank (100); After the catalyst is pre-loaded in the reaction chamber (301), the stirrer (302) is turned on for stirring, and the output speed of the stirrer (302) is set; After stirring for 1 minute, the preheating system is turned on to preheat the catalyst, and the preheating system is temporarily turned off after the temperature inside the reaction chamber (301) reaches the set reaction temperature; The filling pump (200) then quantitatively transports the organic waste liquid to the catalytic oxidation reactor (300), and the organic waste liquid is transported into the catalytic oxidation reactor (300) by compressed air with a flow rate, and the organic waste liquid reacts with oxygen in the compressed air under the action of a catalyst to generate solid residue and tail gas after the reaction; The tail gas generated by the reaction is discharged from the top of the reactor and sequentially passes through a wet dust collector (501), an activated carbon storage tank (502) and a high-efficiency filter (503) before being discharged; The solid residue generated by the reaction is discharged into the collecting tank (400) through the discharge port at the bottom of the catalytic oxidation reactor (300).

8. The process for treating radioactive organic waste liquid according to claim 7, characterized in that: The catalyst is a mixture of metal oxides.

9. The process for treating radioactive organic waste liquid according to claim 8, characterized in that: The stirrer (302) has an output speed of 30-60 r / min.

10. The process for treating radioactive organic waste liquid according to claim 9, characterized in that: The organic waste liquid can be poured into the catalytic oxidation reactor (300) by intermittent feeding.

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