Adsorbent material for radioactive organic waste liquid and method of preparation

Abstract

The application discloses a kind of radioactive organic waste liquid adsorption materials and preparation method thereof, and the raw materials of the adsorption material include: short-chain aryl polymer monomer A, long-chain alkane non-aromatic monomer B, short-chain non-aromatic monomer C, crosslinking agent E, initiator F, foaming agent G;The mass ratio of short-chain aryl polymer monomer A, long-chain alkane non-aromatic monomer B, short-chain non-aromatic monomer C, crosslinking agent E, foaming agent G is 1: (0.1-10) : (0.1-10) : (0.01-0.2) : (0.05-0.2).The radioactive organic waste liquid adsorption material provided by the application has the characteristics of high absorption ratio, strong firmness, large volume reduction ratio after combustion, display, easy to burn and no pollution to the environment during combustion process.

Description

Technical Field

[0001] This invention relates to the field of nuclear waste treatment technology, and more specifically to a radioactive organic waste liquid adsorbent material and its preparation method. Background Technology

[0002] The normal operation, maintenance, and decommissioning of nuclear facilities generate large amounts of radioactive organic waste liquids (such as TBP / kerosene solutions and liquid scintillation fluids). In addition to their physicochemical properties of being flammable, explosive, volatile, easily thermally decomposed, easily biodegradable, and subject to irradiation decomposition, these radioactive organic waste liquids also contain radionuclides such as uranium, plutonium, cerium, strontium, cesium, and cobalt. Therefore, the efficient treatment of radioactive organic waste liquids is a crucial guarantee for the safe decommissioning of nuclear facilities.

[0003] Existing treatment methods mainly involve high-temperature and high-pressure oxidation. One method is direct combustion, which involves directly incinerating organic solvents to convert large organic molecules into smaller molecules such as carbon dioxide, water, and nitrogen oxides. The smaller molecules are then absorbed, and the residue is solidified. This method involves liquid combustion, has limited batch processing capacity, and involves violent chemical reactions during incineration. Another method is supercritical water oxidation, where organic solvents are oxidized in a supercritical aqueous phase, and the residue is then solidified. This method requires high temperature and pressure, posing a significant risk.

[0004] Furthermore, CN202110493247.1 proposes a system solution for radioactive organic solvents that involves "adsorption solidification - drum transportation - solidified body incineration - residue solidification treatment," in which the radioactive organic solvent solidifying agent (i.e., radioactive organic waste liquid adsorbent material) is the key component. CN201910722997.4 discloses a polymeric adsorbent and its preparation method, which is mainly polymerized from halogen-containing olefin monomers, olefin-containing ester monomers, and olefin-containing crosslinking monomers. This polymeric adsorbent can be used to treat oil spills on water surfaces and hazardous organic liquid spills, but it contains halogens such as Cl or Br, making it difficult to incinerate after adsorbing organic solvents. CN201310067847.7 and CN201210178912.9 respectively disclose a method for preparing a three-dimensional interconnected macroporous graphene high-efficiency oil-absorbing material and a biodegradable polyurethane oil-absorbing material and its preparation method. This type of oil-absorbing material has abundant interconnected channels and can adsorb oil up to tens of times. However, the pore size is large, and the retention capacity of low-viscosity radioactive organic waste liquid is poor, which cannot meet the transportation requirements.

[0005] Therefore, how to provide an adsorption material with high adsorption capacity, fast absorption rate, strong adsorption, flammability, and environmental friendliness is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] In view of this, the present invention provides an adsorbent material for radioactive organic waste liquid, which has a high adsorption rate, fast absorption rate, selective adsorption of organic solvents, strong adsorption, and is flammable.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: 11. A radioactive organic waste liquid adsorption material, the raw materials of which include: short-chain aryl polymeric monomer A, long-chain alkane non-aromatic monomer B, short-chain non-aromatic monomer C, crosslinking agent E, initiator F, and foaming agent G; the mass ratio of the short-chain aryl polymeric monomer A, long-chain alkane non-aromatic monomer B, short-chain non-aromatic monomer C, crosslinking agent E, and foaming agent G is 1:(0.1-10):(0.1-10):(0.01-0.2):(0.05-0.2).

[0008] The beneficial effects of adopting the above technical solution are as follows: The monomer used in this invention has a high volume reduction ratio and produces no pollution during combustion, avoiding the use of monomers containing halogens, nitrogen, phosphorus, etc., which are flame-retardant or corrosive after combustion or cause environmental pollution. This invention achieves precise control over the adsorption performance and strong retention capacity of polymers for different organic radioactive waste liquids through block crosslinking polymerization of aromatic long-chain monomer A, aromatic short-chain monomer B, alkyl long-chain monomer C, and a crosslinking agent. The absorption rate is increased by adding a foaming agent. Furthermore, the adsorbent material prepared by this invention is an oleophilic porous spherical particle with certain compressive strength, allowing for selective adsorption of organic phases.

[0009] This invention achieves a balance between material absorption rate and robustness by systematically controlling the dosage of each monomer and polymerization conditions, ensuring that no secondary leakage occurs after the adsorption of radioactive organic waste liquid while guaranteeing a high absorption rate.

[0010] Preferably, the short-chain aryl polymer monomer A is selected from 2,5-dimethylalkenylbenzene, 2-allylphenol, allyl o-tolyl ether, allyl phenoxyacetate, allyl benzoate, allyl 4-hydroxybenzoate, 1-allyl-2-methylbenzene, terbinafine hydrochloride, allylbenzene, eugenol, styrene, stilbene, 1-allyl-2-methylbenzene, tristyrene, benzyladionitrile, or tetrastyrene.

[0011] Preferably, the long-chain alkane non-aromatic monomer B is selected from allyl acetoacetate, butyl acrylate, hexadecyl acrylate, dodecene, octadecene, octadecyl acrylate, 4-envalerate, allyl hexanoate, geraniol, myrcene, sorbic acid, ocimene, squalene, castor oil, ethyl oleate, or oleic acid.

[0012] Preferably, the short-chain non-aromatic monomer C is selected from isoprene, diallylamine, allyl thiourea, allyl acetate, norbornene, allyl nitrile, vinyl acetate, or vinyl ether.

[0013] Preferably, the crosslinking agent E is selected from 1,3-dienylbenzene, divinylbenzene, triallylphosphine, triallylamine, 1,3-butadiene, 1,7-octadiene, isoprene, geraniol acetate, or diallyl carbonate.

[0014] Preferably, the initiator F is selected from benzoyl peroxide, azobisisobutyronitrile, potassium persulfate, or diisopropylbenzene peroxide.

[0015] Preferably, the foaming agent G is selected from sodium dodecyl sulfonate, calcium carbonate, ammonium carbonate, or urea.

[0016] Preferably, the mixture further includes a color developer D, wherein the color developer D is Sudan III or Sudan IV, and the mass ratio of the color developer D to the short-chain aryl polymerizable monomer A is (0.005-0.01):1.

[0017] The beneficial effects of adopting the above technical solution are as follows: the addition of color developer D makes the material exhibit different colors when adsorbing organic waste liquid at different ratios, and the absorption ratio can be visualized by comparing with the standard color development card.

[0018] This invention also discloses a method for preparing the above-mentioned radioactive organic waste liquid adsorbent material, comprising the following steps:

[0019] (1) Mix the short-chain aryl polymer monomer A, the long-chain alkane non-aromatic monomer B, the short-chain non-aromatic monomer C, the crosslinking agent E, and the color developer D evenly and set aside for later use.

[0020] (2) The mixture obtained in step (1) is added to a polyvinyl alcohol solution containing initiator F and foaming agent G, and heated under stirring conditions to carry out cross-linking reaction. The solvent is removed by filtration and washed with deionized water to obtain spherical particulate radioactive organic waste liquid adsorbent material.

[0021] Preferably, the cross-linking reaction is carried out by heating to (60-100℃) and the reaction is terminated after (6-12) hours.

[0022] As can be seen from the above technical solution, compared with the prior art, this invention discloses a radioactive organic waste liquid adsorption material with high absorption rate, strong retention, large volume reduction ratio after combustion, and displayability. This invention increases the adsorption rate of organic waste liquid by adjusting the type and content of the foaming agent to control the pore size, volume, and shape of the adsorption material; it improves the adsorption strength of organic solvents by adjusting the number and length of alkyl substituents in the polymer monomers to meet transportation requirements and avoid leakage of radioactive organic waste liquid caused by bumps during transportation; it balances the relationship between the compressive strength and adsorption performance by adjusting the ratio of monomers A, B, and C; and the ratio of crosslinking agent E and foaming agent G can adjust the density of the material, which is of great significance in preventing secondary oil leakage while ensuring adsorption capacity. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 The colors of the adsorbent material prepared in Example 1 at different adsorption ratios;

[0025] a: No adsorption; b: Adsorption ratio 1:1; c: Adsorption ratio 1:2; d: Adsorption ratio 1:3; e: Excess adsorption;

[0026] Figure 2 The surface morphology and internal pore size of the adsorbent materials prepared in Examples 1-4 are shown.

[0027] A: Example 1; B: Example 2; C: Example 3; D: Example 4;

[0028] Figure 3 The colors of the adsorbent material prepared in Example 1 at different adsorption ratios;

[0029] A: Adsorption ratio 1:1; B: Adsorption ratio 1:1.5; C: Adsorption ratio 1:2. Detailed Implementation

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1

[0032] (1) Mix 162.2g of allyl benzoate monomer, 168.3g of dodecene monomer, 215.3g of vinyl acetate monomer, 15g of Sudan III color developer, and 8.11g of isoprene crosslinking agent evenly and set aside for later use.

[0033] (2) The above mixture was added to a polyvinyl alcohol (0.2% by mass) solution containing 27g of initiator azobisisobutyronitrile and 25g of foaming agent sodium dodecyl sulfonate. The mixture was heated to 80°C under stirring to initiate a crosslinking reaction. After 8 hours, the reaction was stopped, the solvent was removed by filtration, and the product was washed with a large amount of deionized water to obtain spherical porous particles. After drying, the particles were light pink, with a small number of pores inside the spheres, the pore diameter being approximately 1.5-2 micrometers. Figure 2 As shown in (A).

[0034] (3) Take 10g of dried spherical product and place it in a sample bottle. Add tributyl phosphate solution containing radioactive elements (uranium mass fraction of 0.05%) in ratios of 1:1, 1:1.5, and 1:2. Let it stand and observe the adsorption and color change. When the adsorbent mass / organic waste liquid mass = 1:1, adsorption can be completed in only 4 minutes, the volume increase rate is 23%, there is no free organic waste liquid, and the color is light. When the adsorbent mass / organic waste liquid mass = 1:1.5, the complete adsorption time is 10 minutes, the volume increase rate is 35%, there is no free organic waste liquid, and the color is darker. When the adsorbent mass / organic waste liquid mass = 1:2, the complete adsorption time is 20 minutes, the volume increase rate is 42%, there is a small amount of free organic waste liquid at the bottom, but it can be adsorbed with slight stirring. At this time, the solution color is darker.

[0035] (4) Weigh 2g of fully adsorbed adsorbent material with adsorption ratios of 1, 1.5 and 2 respectively and place it in a crucible. Heat the material to 800℃ in a muffle furnace for pyrolysis (the time from room temperature to 800℃ is about 1h, and after holding for 2h, observe the morphology of the residue and weigh it to calculate the volume reduction ratio. The mass reduction rates are 99.1%, 99.3% and 99.5% respectively).

[0036] (5) Weigh 2g of the fully adsorbed adsorbent material with adsorption ratios of 1, 1.5, and 2 respectively, and place it in a φ2cm×3cm plexiglass mold (with a filter paper placed on top and bottom). Apply pressure to 50psi and maintain for 30s, observing whether waste liquid seeps out onto the filter paper. Experimental results show that under 50psi pressure, no waste liquid seeped out from the adsorbent material with adsorption ratios of 1, 1.5, and 2 (e.g., Figure 3 (As shown). When the pressure increases by 80 psi, the material with an adsorption ratio of 2 begins to leach out in small amounts; when the pressure increases by 100 psi, the material with an adsorption ratio of 1.5 begins to leach out in small amounts; and when the pressure increases by 130 psi, the material with an adsorption ratio of 1 begins to leach out in small amounts.

[0037] Example 2

[0038] (1) Mix 562.5g of styrene monomer, 421.2g of butyl acrylate monomer, 205.1g of vinyl ethyl ether monomer, 12g of Sudan III color developer, and 28.1g of isoprene crosslinking agent evenly and set aside for later use.

[0039] (2) The above mixture was added to a polyvinyl alcohol solution (mass fraction 0.2%) containing 22g of initiator azobisisobutyronitrile and 21g of foaming agent sodium dodecyl sulfonate. The mixture was heated to 80°C under stirring to initiate a crosslinking reaction. After 8 hours, the reaction was stopped, the solvent was removed by filtration, and the product was washed with a large amount of deionized water to obtain spherical porous particles. After drying, the particles were light pink, with numerous pores inside the spheres, the pore diameter being approximately 2-3 micrometers. Figure 2 As shown in (B).

[0040] (3) Take 10g of dried spherical product and place it in a sample bottle. Add a tributyl phosphate solution containing radioactive elements (uranium mass fraction of 0.05%) in a ratio of 1:1, 1:1.5, and 1:2. Let it stand and observe the adsorption and color change. When the adsorbent mass / organic waste liquid mass = 1:1, the adsorption can be completed in only 3 minutes, the volume increase rate is 21%, there is no free organic waste liquid, and the color is light. When the adsorbent mass / organic waste liquid mass = 1:1.5, the complete adsorption time is 10 minutes, the volume increase rate is 30%, there is no free organic waste liquid, and the color is darker. When the adsorbent mass / organic waste liquid mass = 1:2, the complete adsorption time is 20 minutes, the volume increase rate is 40%, there is a small amount of free organic waste liquid at the bottom, but it can be adsorbed with slight stirring. At this time, the solution color is darker.

[0041] (4) Weigh 2g of fully adsorbed adsorbent material with adsorption ratios of 1, 1.5 and 2 respectively and place it in a crucible. Heat the material to 800℃ in a muffle furnace for pyrolysis (the time from room temperature to 800℃ is about 1h, and after holding for 2h, observe the morphology of the residue and weigh it to calculate the volume reduction ratio. The mass reduction rates are 98.2%, 98.7% and 99.2% respectively.

[0042] (5) Weigh 2g of the fully adsorbed adsorbent material with adsorption ratios of 1, 1.5, and 2 respectively, and place it in a φ2cm×3cm plexiglass mold (with a filter paper placed on top and bottom). Apply pressure to 50psi and maintain for 30s, then observe whether waste liquid seeps out onto the filter paper. The experimental results show that under 50psi pressure, no waste liquid seeps out from the adsorbent material with adsorption ratios of 1, 1.5, and 2. When the pressure increases to 70psi, the material with an adsorption ratio of 2 begins to seep out in small amounts; when the pressure increases to 90psi, the material with an adsorption ratio of 1.5 begins to seep out in small amounts; and when the pressure increases to 110psi, the material with an adsorption ratio of 1 begins to seep out in small amounts.

[0043] Example 3

[0044] (1) Mix 460.5g of the polymerizable monomer tristyrene, 452.1g of the monomer ethyl oleate, 205.1g of the monomer vinyl ethyl ether, 12.2g of the color-developing Sudan IV, and 23g of the crosslinking agent 1,3-butadiene evenly and set aside for later use.

[0045] (2) The above mixture was added to a polyvinyl alcohol solution (mass fraction 0.3%) containing 22g of initiator azobisisobutyronitrile and 21g of foaming agent sodium dodecyl sulfonate. The mixture was heated to 80℃ under stirring to initiate a crosslinking reaction. After 8 hours, the reaction was stopped, the solvent was removed by filtration, and the product was washed with a large amount of deionized water to obtain spherical porous particles. After drying, the particles were light pink, with numerous pores inside the spheres, the pore diameter being approximately 3-4 micrometers. Figure 2 As shown in (C).

[0046] (3) Take 10g of dried spherical product and place it in a sample bottle. Add tributyl phosphate solution containing radioactive elements (uranium mass fraction of 0.05%) in ratios of 1:1, 1:1.5, and 1:2. Let it stand and observe the adsorption and color change. When the adsorbent mass / organic waste liquid mass = 1:1, adsorption can be completed in only 6 minutes, the volume increase rate is 20%, there is no free organic waste liquid, and the color is light. When the adsorbent mass / organic waste liquid mass = 1:1.5, the complete adsorption time is 12 minutes, the volume increase rate is 36%, there is no free organic waste liquid, and the color is darker. When the adsorbent mass / organic waste liquid mass = 1:2, the complete adsorption time is 30 minutes, the volume increase rate is 41%, there is a small amount of free organic waste liquid at the bottom, but it can be adsorbed with slight stirring. At this time, the solution color is darker.

[0047] (4) Weigh 2g of fully adsorbed adsorbent material with adsorption ratios of 1, 1.5 and 2 respectively and place it in a crucible. Heat the material to 800℃ in a muffle furnace for pyrolysis (the time from room temperature to 800℃ is about 1h, and after holding for 2h, observe the morphology of the residue and weigh it to calculate the volume reduction ratio. The mass reduction rates are 98.4%, 98.9% and 99.4% respectively.

[0048] (5) Weigh 2g of the fully adsorbed adsorbent material with adsorption ratios of 1, 1.5, and 2 respectively, and place it in a φ2cm×3cm plexiglass mold (with a filter paper placed on top and bottom). Apply pressure to 50psi and maintain for 30s, then observe whether waste liquid seeps out onto the filter paper. The experimental results show that under 50psi pressure, no waste liquid seeps out from the adsorbent materials with adsorption ratios of 1, 1.5, and 2 respectively. When the pressure increases to 60psi, the material with an adsorption ratio of 2 begins to seep out in small amounts; when the pressure increases to 80psi, the material with an adsorption ratio of 1.5 begins to seep out in small amounts; and when the pressure increases to 100psi, the material with an adsorption ratio of 1 only begins to seep out in small amounts.

[0049] Example 4

[0050] (1) Mix 363.5g of tetraphenylethylene, 350.1g of oleic acid, 102.2g of vinyl acetate, 5.2g of Sudan IV colorant, and 18.2g of isoprene crosslinking agent evenly and set aside for later use.

[0051] (2) The above mixture was added to a polyvinyl alcohol solution (mass fraction 0.3%) containing 14g of initiator azobisisobutyronitrile and 12g of foaming agent sodium dodecyl sulfonate. The mixture was heated to 80°C under stirring to initiate a crosslinking reaction. After 8 hours, the reaction was stopped, the solvent was removed by filtration, and the product was washed with a large amount of deionized water to obtain spherical porous particles. After drying, the particles were light pink, with a small number of pores inside the spheres, the pore diameter being approximately 4 micrometers. Figure 2 As shown in (D).

[0052] (3) Take 10g of dried spherical product and place it in a sample bottle. Add tributyl phosphate solution containing radioactive elements (uranium mass fraction of 0.05%) in ratios of 1:1, 1:1.5, and 1:2. Let it stand and observe the adsorption and color change. When the adsorbent mass / organic waste liquid mass = 1:1, adsorption can be completed in only 7 minutes, the volume increase rate is 22%, there is no free organic waste liquid, and the color is light. When the adsorbent mass / organic waste liquid mass = 1:1.5, the complete adsorption time is 15 minutes, the volume increase rate is 33%, there is no free organic waste liquid, and the color is darker. When the adsorbent mass / organic waste liquid mass = 1:2, the complete adsorption time is 30 minutes, the volume increase rate is 39%, there is a small amount of free organic waste liquid at the bottom, but it can be adsorbed with slight stirring. At this time, the solution color is darker.

[0053] (4) Weigh 2g of fully adsorbed adsorbent material with adsorption ratios of 1, 1.5 and 2 respectively and place it in a crucible. Heat the material to 800℃ in a muffle furnace for pyrolysis (the time from room temperature to 800℃ is about 1h, and after holding for 2h, observe the morphology of the residue and weigh it to calculate the volume reduction ratio. The mass reduction rates are 98.5%, 99.1% and 99.5% respectively.

[0054] (5) Weigh 2g of fully adsorbed adsorbent material with adsorption ratios of 1, 1.5, and 2 respectively, and place them in an acrylic mold with a diameter of 2cm × 3cm (with a filter paper placed on top and bottom). Apply pressure to 50psi and maintain for 30s, then observe whether waste liquid seeps out onto the filter paper. The experimental results show that at 50psi pressure, no waste liquid seeps out from the adsorbent material with adsorption ratios of 1 and 1.5, while a small amount of waste liquid seeps out from the adsorbent material with an adsorption ratio of 2. When the pressure increases to 60psi, a small amount of waste liquid begins to seep out from the material with an adsorption ratio of 1.5; when the pressure increases to 80psi, a small amount of waste liquid begins to seep out from the material with an adsorption ratio of 1.

[0055] In the development of this invention, initially only short-chain aryl monomer A and long-chain alkane non-aromatic monomer B were added. The ratio of monomers A and B was then optimized. As the proportion of monomer B increased from 0.1 to 1, the adsorption performance of the polymer increased. When A:B = 2, the saturated adsorption capacity reached its maximum of 12 g / g. Then, with further increases in monomer B content (2-10), the adsorption capacity decreased significantly. However, the two-component material exhibited poor compressive strength; at an adsorption capacity of 1 g / g, leakage occurred at a pressure of 20 psi. To obtain superior robustness, further experiments were conducted. It was found that with the addition of a third component, monomer C, and with a fixed A:B mass ratio of 2, the adsorption capacity increased as the mass ratio of C to A increased from 0.1 to 1. When A:B:C = 1:2:1, the saturated adsorption capacity reached its maximum of 10 g / g. Then, with further increases in C content (1-10), the adsorption capacity decreased. At this point, the compressive strength of the three-component material was significantly improved. With an adsorption capacity of 1.5 g / g, no leakage occurred at a pressure of 50 psi. Finally, by adjusting the ratio of crosslinking agent E and foaming agent G, after optimization, when the adsorption capacity was 2 g / g, it maintained strong adsorption and did not leak even at a pressure of 50 psi.

[0056] This invention can identify the adsorption ratio by color. The material after adsorbing waste liquid of different ratios will have different colors. The adsorption ratio can be determined by comparing with a standard color chart. This is of great significance in the process of handling leakage (when leakage occurs, it is impossible to weigh the leaked liquid. Using too much adsorbent is wasteful, and using too little can easily lead to secondary leakage due to compression during transportation).

[0057] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0058] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A radioactive organic waste liquid adsorbent material, characterized by, The raw materials include: short-chain aryl polymer monomer A, long-chain alkane non-aromatic monomer B, short-chain non-aromatic monomer C, crosslinking agent E, initiator F, foaming agent G; the mass ratio of the short-chain aryl polymer monomer A, long-chain alkane non-aromatic monomer B, short-chain non-aromatic monomer C, crosslinking agent E, foaming agent G is 1:(0.1-2):(0.1-1):(0.05):(0.05-0.2); The short-chain aryl polymer monomer A is selected from allyl benzoate, styrene, triphenyl ethylene or tetraphenyl ethylene; The long-chain alkane non-aromatic monomer B is selected from butyl acrylate, dodecene, ethyl oleate or oleic acid; The short-chain non-aromatic monomer C is selected from vinyl acetate or vinyl ethyl ether; The crosslinking agent E is selected from 1,3-butadiene or isoprene; The initiator F is azobis isobutyronitrile; The foaming agent G is selected from sodium dodecyl sulfonate.

2. The radioactive organic liquid waste adsorbent material of claim 1, wherein, The color developing agent D is also included, which is Sudan III or Sudan IV; the mass ratio of the color developing agent D to the short-chain aryl polymer monomer A is (0.005-0.01):

1.

3. A method of preparing a radioactive organic liquid waste adsorbent material according to any one of claims 1-2, characterized in that, The following steps are included: (1) The short-chain aryl polymer monomer A, long-chain alkane non-aromatic monomer B, short-chain non-aromatic monomer C, and crosslinking agent E, color developing agent D are stirred and mixed uniformly for use; (2) The mixed solution obtained in step (1) is added to a polyvinyl alcohol solution containing initiator F and foaming agent G, and crosslinking reaction is carried out under stirring and heating, then the solvent is removed by filtration, and the spherical particle radioactive organic waste liquid adsorption material is obtained after deionized water washing.

4. The method for preparing a radioactive organic waste liquid adsorbent material according to claim 3, characterized in that, The crosslinking reaction is carried out by heating to 60-100℃, and the reaction is completed after 6-12h.

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