Organic waste liquid treatment process and system

Abstract

The invention discloses an organic waste liquid treatment process and system, and relates to the technical field of organic waste liquid treatment.The organic waste liquid treatment process comprises the following steps that S100, a catalyst is put into a reactor in advance, a stirring module of the reactor and an electric heating module of the reactor are started in sequence, and the catalyst is preheated; s200, adding the organic waste liquid in the transfer tank into the reactor through a plunger pump, and enabling the organic waste liquid to fully react with the catalyst; and S300, tail gas generated by reaction in the reactor is detected, filtered and then discharged, and the tail gas and solid residues in the reactor are subjected to sampling, inspection and deslagging treatment. According to the organic waste liquid treatment process and system, alpha radioactive organic waste liquid is treated, organic components in the waste liquid are converted into salt and water through the catalyst, the purpose of inorganic waste liquid is achieved, and the risk of radioactive leakage of the waste liquid is greatly reduced. A three-stage tail gas filtering device is arranged at the rear end of the reactor, so that radioactive organic matters are prevented from being volatilized and dispersed into the environment.

Description

Technical Field

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

[0002] With the continuous development of the nuclear energy industry, a large amount of spent fuel generated by nuclear power plants needs to be processed to recover unused uranium and other resources. In the process of recovering uranium resources in spent fuel, a large amount of radioactive organic waste liquid will be generated. If it is discharged without proper treatment or incomplete treatment, it will cause radioactive pollution to the environment, which will not only affect the growth of plants and animals, deteriorate water bodies, endanger human health, but also affect the normal operation of the spent fuel treatment process. If direct combustion is adopted, due to the problem of liquid phase distribution, the combustion may not be complete, the radioactive organic waste liquid cannot be completely inorganicized, and the combustion tail gas will produce pollutants during the cooling process. Therefore, it is necessary to solve the above problems in the treatment of radioactive organic waste liquid to ensure the continuous and stable operation of the facility and the standard emission of tail gas. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above-mentioned technical problems that the existing pollutant treatment is incomplete, the equipment is prone to corrosion and the organic waste liquid cannot be completely inorganicized, the present invention is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an organic waste liquid treatment process, comprising the following steps, S100: placing a catalyst in a reactor in advance, and sequentially turning on the stirring module and the electric heating module of the reactor to preheat the catalyst; S200: adding the organic waste liquid in the transfer tank to the reactor through a plunger pump to allow the organic waste liquid to fully react with the catalyst; S300: discharging the tail gas generated by the reaction in the reactor after detection and filtration, and sampling, sending for inspection and slag discharge for the tail gas and solid residue in the reactor.

[0006] As a preferred embodiment of the organic waste liquid treatment process of the present invention, during the preheating of the catalyst, compressed air is continuously introduced into the reactor, and the compressed air injection flow rate is maintained at 1 to 2 m 3 / h, the rotation speed of the stirring module in the reactor chamber is controlled at 60r / min, and after stirring for 1 minute, the electric heating module of the reactor is turned on, and the electric heating module is turned off after the temperature reaches the reaction temperature of 180°C.

[0007] As a preferred scheme of the organic waste liquid treatment process described in the present invention, during the reaction of the organic waste liquid with the catalyst, the stirring module and the electric heating module of the reactor are both turned on; wherein the reaction temperature in the reactor chamber is controlled at 190±20°C, and the output speed of the stirring module in the reactor chamber is controlled at 30-60r / min.

[0008] As a preferred scheme of the organic waste liquid treatment process described in the present invention, wherein: during the reaction of the organic waste liquid with the catalyst, the stirring module and the electric heating module of the reactor are both turned on; wherein the reaction temperature in the reactor chamber is controlled at 190°C, and the output speed of the stirring module in the reactor chamber is controlled at 30r / min.

[0009] As a preferred embodiment of the organic waste liquid treatment process of the present invention, during the reaction of the organic waste liquid with the catalyst, compressed air is continuously introduced into the reactor during the reaction; wherein the compressed air flow rate is 0.5 to 1.0 m 3 / h, compressed air pressure 0.1±0.05Mpa; the internal pressure of the reactor is controlled at less than 20kPa.

[0010] As a preferred embodiment of the organic waste liquid treatment process of the present invention, during the reaction of the organic waste liquid with the catalyst, compressed air is continuously introduced into the reactor during the reaction; wherein the compressed air flow rate is 1.0 m 3 / h, compressed air pressure is 0.1Mpa, and the internal pressure of the reactor is controlled at less than 20kPa.

[0011] As a preferred solution of the organic waste liquid treatment process of the present invention, the tail gas detection process includes real-time detection of the organic gas content in the tail gas by a VOC online detector to determine whether the catalyst is deactivated.

[0012] As a preferred solution of the organic waste liquid treatment process of the present invention, the process of filtering the tail gas includes: the tail gas is discharged after passing through the tail gas pipe through a wet tank, an activated carbon tank, and a high-efficiency filter.

[0013] In order to solve the above technical problems, the present invention provides the following technical solutions: an organic waste liquid treatment system, comprising: an organic waste liquid feeding unit, which includes a transfer tank with a storage cavity inside, a liquid supply pipe connected to the discharge port of the transfer tank, and a plunger pump arranged on the liquid supply pipe for conveying organic waste liquid; a catalytic oxidation reaction unit, which includes a reactor connected to the transfer tank through a liquid supply pipe; wherein the reactor has a reaction chamber inside to provide a reaction space for organic waste liquid and catalyst, and a stirring module and an electric heating module are arranged in the reaction chamber; a residual tail gas treatment unit, which includes a tail gas pipe connected to the tail gas outlet at the top of the reactor, and a wet process tank, an activated carbon tank and a high-efficiency filter connected by a pipeline and arranged in sequence along the flow direction of the tail gas; wherein the air inlet of the wet process tank is connected to the end of the tail gas pipe away from the reactor.

[0014] As a preferred embodiment of the organic waste liquid treatment system described in the present invention, wherein: a funnel is provided at the feed port of the transfer tank, and a filter screen is detachably installed in the funnel for filtering large particles of solid impurities in the organic waste liquid to prevent clogging of the liquid supply pipe or the plunger pump; a slag discharge port is provided at the bottom of the reactor, and the residual tail gas treatment unit also includes a receiving trough provided below the slag discharge port for receiving residual waste; the residual tail gas treatment unit also includes a VOC online detector, and the air inlet end of the VOC online detector is connected to the tail gas pipe; the catalytic oxidation reaction unit also includes an air supply pipe, one end of the air supply pipe is connected to the output end of the air compressor, and the other end of the air supply pipe is connected to the air inlet of the reactor, and the air supply pipe is used to continuously supply compressed air to the reactor during the reaction of the organic waste liquid and the catalyst.

[0015] Beneficial effects of the invention: The organic waste liquid treatment process and system of the invention, by treating α-radioactive organic waste liquid, uses a catalyst to convert the organic components in the waste liquid into salt and water, thereby achieving the purpose of inorganicizing the waste liquid and greatly reducing the risk of radioactive leakage of the waste liquid. A three-stage tail gas filtration device is provided at the rear end of the reactor to prevent the radioactive organic matter from volatilizing into the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0017] Figure 1 The present invention is a process flow chart of the organic waste liquid treatment system.

[0018] Figure 2 This is a trend diagram of operating parameters of the simulated liquid treatment test in Test Example 1 of the present invention.

[0019] In the figure: 100, organic waste liquid feeding unit; 101, transfer tank; 102, plunger pump; 103, liquid supply pipe; 104, funnel; 105, discharge port valve; 106, feed port valve; 107, vent valve; 200, catalytic oxidation reaction unit; 201, reactor; 202, air supply pipe; 203, stirring module; 204, slag discharge port valve; 205, air intake valve; 300, residue tail gas treatment unit; 301, tail gas pipe; 302, wet process tank; 303, activated carbon tank; 304, high efficiency filter; 305, VOC online detector; 306, receiving trough; 307, pressure gauge. DETAILED DESCRIPTION

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] Example 1

[0025] Reference Figure 1, which is the first embodiment of the present invention, provides an organic waste liquid treatment system, including an organic waste liquid feeding unit 100, a catalytic oxidation reaction unit 200 and a residual tail gas treatment unit 300; wherein, the organic waste liquid feeding unit 100 includes a transfer tank 101, a plunger pump 102 and a liquid supply pipe 103. wherein, the transfer tank 101 has a storage cavity for storing organic waste liquid inside, a feed port and a vent connected to the storage cavity are arranged at the top of the transfer tank 101, and a funnel 104 is arranged at the feed port, and a filter screen is detachably installed in the funnel 104, which is used to filter large solid impurities in the organic waste liquid to prevent clogging of the liquid supply pipe 103 or the plunger pump 102.

[0026] Furthermore, a discharge port communicating with the storage chamber is provided at the bottom of the transfer tank 101, and the discharge port is connected to one end of the liquid supply pipe 103; a plunger pump 102 is provided on the liquid supply pipe 103 to provide power support for conveying the organic waste liquid.

[0027] Specifically, by providing the funnel 104, the organic solvent can be added to the storage chamber of the transfer tank 101 by manual feeding. When the organic solution needs to be processed, the discharge port valve 105 at the bottom of the transfer tank 101 is opened, and the plunger pump 102 is started to extract the organic solvent in the storage chamber, and the organic solution is supplied to the catalytic oxidation reaction unit 200 through the liquid supply pipe 103.

[0028] Further, the catalytic oxidation reaction unit 200 includes a reactor 201. The reactor 201 is a catalytic oxidation reactor 201. The reactor 201 has a reaction chamber inside that provides a reaction space for the organic waste liquid and the catalyst, and the top of the reactor 201 is provided with an organic solution inlet, a catalyst inlet and an exhaust gas outlet that are connected to the reaction chamber. Among them, the organic solution inlet of the reactor 201 is connected to the other end of the liquid supply pipe 103, and the exhaust gas outlet of the reactor 201 is connected to one end of the exhaust pipe 301.

[0029] Furthermore, the reactor 201 is provided with an air inlet connected to the reaction chamber, and the air inlet is connected to one end of the air supply pipe 202, and the other end of the air supply pipe 202 is connected to the output end of the air compressor (not shown in the figure). The air supply pipe 202 cooperates with the air compressor to continuously supply compressed air to the reactor 201 during the reaction of the organic waste liquid and the catalyst.

[0030] Furthermore, a stirring module 203 and an electric heating module are also provided in the reaction chamber. The stirring module 203 is used to stir the organic waste liquid and the catalyst to make the two react fully. The electric heating module is used to provide a suitable reaction temperature for the reaction of the organic waste liquid and the catalyst.

[0031] Specifically, the organic solution enters the reaction chamber of the reactor 201 from the organic solution inlet through the liquid supply pipe 103, and the catalyst enters the reaction chamber of the reactor 201 through the catalyst inlet. The two react fully in the reaction chamber, and the catalyst converts the organic components in the waste liquid into salt and water, thereby achieving the purpose of inorganicizing the waste liquid and removing harmful substances in the organic solution. During the reaction, the stirring module 203 is started to stir the organic waste liquid and the catalyst so that the two react fully; the electric heating module is started to provide a suitable reaction temperature for the reaction of the organic waste liquid and the catalyst; the air compressor is started to continuously supply compressed air to the reaction chamber of the reactor 201 through the air supply pipe 202 to provide a suitable reaction pressure for the reaction of the organic waste liquid and the catalyst.

[0032] Furthermore, the residual tail gas treatment unit 300 includes a tail gas pipe 301 connected to the tail gas outlet at the top of the reactor 201, and a wet process tank 302, an activated carbon tank 303 and a high efficiency filter 304 connected by pipelines and arranged in sequence along the direction of tail gas flow; wherein, the air inlet of the wet process tank 302 is connected to one end of the tail gas pipe 301 away from the reactor 201.

[0033] Furthermore, the residual tail gas treatment unit 300 also includes a VOC online detector 305. The air inlet end of the VOC online detector 305 is connected to the tail gas pipe 301. Specifically, the VOC online detector 305 can be connected to the tail gas pipe 301 in series or in parallel.

[0034] Furthermore, a slag discharge port is provided at the bottom of the reactor 201, and the residue tail gas treatment unit 300 further includes a receiving trough 306 provided below the slag discharge port for receiving residue waste.

[0035] Specifically, the exhaust gas generated by the reaction of the organic waste liquid and the catalyst flows along the exhaust pipe 301, passes through the wet process tank 302, the activated carbon tank 303 and the high-efficiency filter 304 in sequence for filtration and dust removal before being discharged; while the exhaust gas flows along the exhaust pipe 301, it passes through the VOC online detector 305 to monitor the organic gas content in the exhaust gas in real time.

[0036] Example 2

[0037] Reference Figure 1 and Figure 2 , which is the second embodiment of the present invention, and provides an organic waste liquid treatment process. This process is based on the organic waste liquid treatment system described in Example 1. Before the process is implemented, the system equipment needs to be pre-checked to ensure the normal implementation of the process flow. Specific inspection items include:

[0038] Make sure the power is on;

[0039] Ensure that the feed inlet valve 106 and vent valve 107 at the top of the transfer tank 101, the discharge port valve 105 at the bottom, and the plunger pump 102 are all closed;

[0040] Ensure that the stirring module 203, the electric heating module, the catalyst inlet valve at the top, the exhaust valve 310 on the tail gas pipe 301, the slag outlet valve 204 at the bottom, and the air inlet valve 205 of the reactor 201 are all closed;

[0041] Ensure that the pressure gauge 307 on the tail pipe 301 is normal;

[0042] Ensure that the VOC online detector 305 is turned on;

[0043] Ensure that the compressed air flow meter on the air supply pipe 202 is normal.

[0044] Furthermore, the organic waste liquid treatment process comprises the following steps:

[0045] S100: placing a catalyst into the reactor 201 in advance, and sequentially turning on the stirring module 203 of the reactor 201 and the electric heating module of the reactor 201 to preheat the catalyst;

[0046] S200: The organic waste liquid in the transfer tank 101 is added to the reactor 201 through the plunger pump 102, so that the organic waste liquid fully reacts with the catalyst, and the catalyst converts the organic components in the waste liquid into salt and water, thereby achieving the purpose of inorganicizing the waste liquid;

[0047] S300: The tail gas generated by the reaction in the reactor 201 is discharged after detection and filtration, and the tail gas and the solid residue in the reactor 201 are sampled, sent for inspection and slag discharge. Specifically, after the tail gas is discharged, the wet process tank 302 is opened to capture the residual tail gas inside it or sampling is performed from the outlet end of the tail gas pipe 301.

[0048] Furthermore, during the preheating of the catalyst, the air compressor and the air inlet valve 205 on the air supply pipe 202 are turned on to introduce compressed air into the reactor 201, and the compressed air injection flow rate is maintained at 1 to 2 m / s. 3 / h, the output speed of the stirring module 203 in the reactor 201 cavity is controlled at 60r / min (frequency control, continuously adjustable), and if there is no abnormality after stirring for 1 minute, the electric heating module of the reactor 201 is turned on and the electric heating module is turned off after the temperature reaches the reaction temperature of 180°C.

[0049] Furthermore, during the reaction of the organic waste liquid with the catalyst, the stirring module 203 and the electric heating module of the reactor 201 are both turned on; wherein the reaction temperature in the cavity of the reactor 201 is controlled at 190±20°C, preferably 190°C; the output speed of the stirring module 203 in the cavity of the reactor 201 is controlled at 30-60r / min, preferably 30r / min.

[0050] Furthermore, during the reaction of the organic waste liquid and the catalyst, compressed air is continuously introduced into the reactor 201 during the reaction; wherein the compressed air flow rate is 0.5-1.0 m3 / h, preferably 1.0 m3 / h; the compressed air pressure is 0.1±0.05 Mpa, preferably 0.1 Mpa. At the same time, in order to prevent the residual tail gas treatment unit 300 from clogging and causing excessive pressure in the reactor 201 to cause explosion hazard, the internal pressure of the reactor 201 is controlled to be less than 20 kPa.

[0051] Furthermore, the exhaust gas detection process includes real-time detection of the organic gas content in the exhaust gas by the VOC online detector 305 to determine whether the catalyst is deactivated; at the same time, in order to prevent the accumulation of incompletely reacted combustible gas to generate explosion hazard, the detection standard of the VOC online detector 305 is: organic gas content <1.0 vol%. At the same time, it can also be used to determine whether the catalyst is deactivated based on this data, that is, if the organic gas content exceeds 1.0 vol%, the catalyst is deactivated and it is necessary to add catalyst to the reaction chamber.

[0052] Furthermore, the exhaust gas filtration process includes that the exhaust gas is discharged after being filtered through the exhaust pipe 301, the wet tank 302, the activated carbon tank 303, and the high-efficiency filter 304; in order to prevent the residual exhaust gas treatment unit 300 from being blocked, resulting in excessive pressure in the reactor 201 and causing an explosion hazard, the pressure of the high-efficiency filter 304 is less than 15Kpa.

[0053] Furthermore, after the tail gas is treated, the slag discharge valve 204 at the bottom of the reactor 201 is opened to discharge the residue in the reaction chamber and the aqueous solution generated by the reaction to the receiving trough 306 for collection; the wet process tank 302 is opened to capture the residual tail gas inside it or to take samples from the outlet end of the tail gas pipe 301.

[0054] Specifically, in Experimental Example 1, the simulated feed liquid selected in this Experimental Example 1 is a 20 vol% TOA-xylene solution (not containing radioactivity), and the main component of the catalyst is MnO2.

[0055] The operation process of TOA-xylene simulated liquid treatment test is as follows:

[0056] 1) Preliminary inspection: Ensure that the power is on; ensure that the feed inlet valve 106 and the vent valve 107 at the top of the transfer tank 101, the discharge port valve 105 at the bottom, and the plunger pump 102 are all closed; ensure that the stirring module 203, the electric heating module, the catalyst inlet valve at the top and the exhaust valve 310 on the tail gas pipe 301, the slag discharge port valve 204 at the bottom, and the intake valve 205 of the reactor 201 are all closed; ensure that the pressure gauge 307 on the tail gas pipe 301 is normal; ensure that the VOC online detector 305 is turned on; ensure that the compressed air flow meter on the air supply pipe 202 is normal.

[0057] 2) Loading simulated liquid: Open the vent valve 107 and the feed inlet valve 106 on the top of the transfer tank 101 , and pour 5 L of 20 vol% TOA-xylene simulated liquid into the transfer tank 101 .

[0058] 3) Catalyst loading: 16 kg of catalyst was loaded into the reactor 201 .

[0059] 4) Catalyst stirring and preheating: The air inlet valve 205 of the reactor 201 is used to introduce compressed air into the reactor 201, and the compressed air flow rate is adjusted to maintain at 1-2 m 3 / h; turn on the stirring module 203 of the catalytic oxidation reactor 201, preset the stirring module 203 output speed 60r / min (frequency control, continuously adjustable), stir for 1 minute without abnormality, turn on the electric heating module, set the heating temperature, and turn off the electric heating module after the thermometer shows that the reaction temperature reaches 180°C.

[0060] 5) Catalytic reaction, tail gas sampling and residue treatment.

[0061] Test results: Figure 2 As shown in Table 1. During the test, the simulated liquid feed rate was maintained at 0.26L / h; the compressed air flow rate was maintained at 0.7~2.1m 3 / h; the temperature of the outer wall of the reactor 201 was controlled not to exceed 310°C, and the internal temperature was maintained at 169-211°C; the tail gas temperature was maintained at 84-102°C. During the feeding process to the reactor 201, the VOC content was low, and the VOC content increased during the period of stopping the feeding. In the early stage of the test, the VOC content increased rapidly, reaching a maximum of 0.42vol%. After 27 hours of the simulated liquid being passed through, the VOC content gradually decreased, and the VOC content did not exceed 0.13vol%.

[0062] Table 1 is the data record table of TOA-xylene simulated liquid catalytic oxidation experiment

[0063]

[0064] Based on the above parameters, the catalytic oxidation process of the simulated liquid is stable and controllable, and there is no obvious gaseous organic matter in the tail gas, which proves that the catalyst has a good treatment effect on the organic simulated liquid and meets the requirements of catalytic oxidation treatment.

[0065] 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, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, 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 of performing the function described herein, 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 several modifications still falling within the scope of the appended claims.

[0066] 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.

[0067] 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.

[0068] 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 process for treating organic waste liquid, characterized in that: The following steps are included: S100: placing a catalyst in the reactor (201) in advance, and sequentially turning on the stirring module (203) of the reactor (201) and the electric heating module of the reactor (201) to preheat the catalyst; S200: adding the organic waste liquid in the transfer tank (101) into the reactor (201) through the plunger pump (102) to allow the organic waste liquid to fully react with the catalyst; S300: the tail gas generated by the reaction in the reactor (201) is discharged after detection and filtration, and the tail gas and the solid residue in the reactor (201) are sampled, sent for inspection and slag discharge.

2. The organic waste liquid treatment process according to claim 1, characterized in that: During the preheating of the catalyst, compressed air is continuously introduced into the reactor (201), and the compressed air injection flow rate is maintained at 1 to 2 m 3 / h, the rotation speed of the stirring module (203) in the reactor (201) cavity is controlled at 60r / min, and after stirring for 1 minute, the electric heating module of the reactor (201) is turned on, and the electric heating module is turned off after the temperature reaches the reaction temperature of 180°C.

3. The organic waste liquid treatment process according to claim 2, characterized in that: During the reaction of the organic waste liquid with the catalyst, the stirring module (203) and the electric heating module of the reactor (201) are both turned on; The reaction temperature in the reactor (201) cavity is controlled at 190±20° C., and the output rotation speed of the stirring module (203) in the reactor (201) cavity is controlled at 30 to 60 r / min.

4. The organic waste liquid treatment process according to claim 3, characterized in that: During the reaction of the organic waste liquid with the catalyst, the stirring module (203) and the electric heating module of the reactor (201) are both turned on; The reaction temperature in the reactor (201) cavity is controlled at 190° C., and the output rotation speed of the stirring module (203) in the reactor (201) cavity is controlled at 30 r / min.

5. The organic waste liquid treatment process according to claim 1 or 3, characterized in that: During the reaction of the organic waste liquid and the catalyst, compressed air is continuously introduced into the reactor (201); Among them, the compressed air flow rate is 0.5~1.0m3 / h, and the compressed air pressure is 0.1±0.05Mpa; the internal pressure of the reactor (201) is controlled to be less than 20kPa.

6. The organic waste liquid treatment process according to claim 5, characterized in that: During the reaction of the organic waste liquid and the catalyst, compressed air is continuously introduced into the reactor (201); Among them, the compressed air flow rate is 1.0m3 / h, the compressed air pressure is 0.1Mpa, and the internal pressure of the reactor (201) is controlled to be less than 20kPa.

7. The organic waste liquid treatment process according to claim 1, characterized in that: The tail gas detection process includes, through the VOC online detector (305), real-time detection of the organic gas content in the tail gas to determine whether the catalyst is deactivated.

8. The organic waste liquid treatment process according to claim 1 or 7, characterized in that: The process of filtering the tail gas includes: the tail gas passes through the tail gas pipe (301) and is filtered through a wet process tank (302), an activated carbon tank (303), and a high-efficiency filter (304) before being discharged.

9. An organic waste liquid treatment system, characterized in that: include, An organic waste liquid feeding unit (100) comprises a transfer tank (101) having a storage cavity therein, a liquid supply pipe (103) connected to a discharge port of the transfer tank (101), and a plunger pump (102) disposed on the liquid supply pipe (103) for conveying the organic waste liquid; A catalytic oxidation reaction unit (200) comprises a reactor (201) connected to a transfer tank (101) via a liquid supply pipe (103); wherein the reactor (201) has a reaction chamber inside thereof for providing a reaction space for organic waste liquid and a catalyst, and a stirring module (203) and an electric heating module are arranged in the reaction chamber; A residue tail gas treatment unit (300) comprises a tail gas pipe (301) connected to the tail gas outlet at the top of the reactor (201), and a wet process tank (302), an activated carbon tank (303) and a high efficiency filter (304) connected by pipelines and arranged in sequence along the tail gas flow direction; wherein the air inlet of the wet process tank (302) is connected to an end of the tail gas pipe (301) away from the reactor (201).

10. The organic waste liquid treatment system according to claim 9, characterized in that: A funnel (104) is provided at the feed inlet of the transfer tank (101), and a filter screen is detachably installed in the funnel (104) for filtering large solid impurities in the organic waste liquid to prevent clogging of the liquid supply pipe (103) or the plunger pump (102); The reactor (201) is provided with a slag discharge port at the bottom, and the residue tail gas treatment unit (300) further comprises a receiving trough (306) provided below the slag discharge port for receiving residue waste; The residual tail gas treatment unit (300) further comprises a VOC online detector (305), and an air inlet end of the VOC online detector (305) is connected to the tail gas pipe (301); The catalytic oxidation reaction unit (200) further comprises an air supply pipe (202), one end of which is connected to the output end of the air compressor, and the other end of which is connected to the air inlet of the reactor (201). The air supply pipe (202) is used to continuously supply compressed air to the reactor (201) during the reaction between the organic waste liquid and the catalyst.

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