Treatment device for classified collection and recovery of organic waste liquid in dioxin laboratory

Abstract

The utility model discloses a treatment device for classified collection and recovery of organic waste liquid in a dioxin laboratory. The treatment device comprises a waste liquid storage tank; the activated carbon adsorption column is connected to the output end of the waste liquid storage tank; the vacuum filtering device is connected to the output end of the activated carbon adsorption column; and the organic solvent recovery storage tank is connected to the output end of the vacuum filtering device. The organic waste liquid is separated and purified by classifying and collecting the organic waste liquid in the early stage and utilizing adsorption and filtering technologies, so that highly toxic pollutants such as dioxin in the organic waste liquid are prevented from being accumulated and transferred in a treatment device, and meanwhile, the organic waste liquid generated in a dioxin organic laboratory is recycled. The organic solvent purified and recovered by the device meets the pesticide residue level of the national standard, the energy consumption can be saved, and the environment can be protected.

Description

Technical Field

[0001] The utility model relates to the technical field of organic solvent recovery and utilization, and particularly relates to a treatment device for classified collection and recovery of organic waste liquid in a dioxin laboratory. Background Art

[0002] At present, dioxin is one of the most toxic substances discovered by humans, and its toxicity is 1000 times that of potassium cyanide (KCN), which can cause great harm to the environment. Since dioxin analysis belongs to ultra-trace organic matter analysis, the requirements for the environmental background are very strict, and the organic solvents required also need to be of pesticide residue grade with few impurities and high purity. In the organic laboratory for dioxin analysis, whether using traditional pretreatment techniques or new automated pretreatment techniques to process a sample, it is inevitable to consume more than 1000 ml of pesticide residue grade organic solvents. The generated organic waste liquid contains residual dioxin and organic pollutants similar to dioxin. It can be seen that in the dioxin organic analysis laboratory, the consumption of organic solvents is large and the cost is high, and the accumulated organic waste liquid is likely to pollute the laboratory environment and endanger the health of experimental personnel. Therefore, in order to protect the safety of laboratory personnel and the laboratory environment and save the sample treatment cost, it is very necessary to strengthen the fine management and treatment of the organic waste liquid generated daily in the dioxin laboratory.

[0003] The existing organic solvent treatment devices focus on the centralized treatment of organic waste liquid, lacking the previous targeted fine classification and recovery. Their devices mainly rely on the principle of distillation - condensation to process waste liquid in large quantities, with high overall energy consumption. For highly toxic pollutants such as dioxin in organic waste liquid, they are prone to accumulate and transfer in the treatment device, causing environmental pollution, etc. Summary of the Utility Model

[0004] Based on this, in view of the above problems, it is necessary to provide a treatment device for classified collection and recovery of organic waste liquid in a dioxin laboratory. The organic waste liquid generated in the daily pretreatment process is first classified and collected in a timely manner, and then processed, recovered and reused through the corresponding device, which can not only reduce the transfer of dioxin pollutants with the organic waste liquid, achieve the safety and environmental protection effect, but also reduce the dioxin detection cost, improve the competitiveness of dioxin detection, and has the significance of improving the considerable economic benefits and the level of cleaner production.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A treatment device for classified collection and recovery of organic waste liquid in a dioxin laboratory, characterized by comprising:

[0007] A waste liquid storage tank;

[0008] An activated carbon adsorption column, connected to the output end of the waste liquid storage tank;

[0009] A vacuum filtration device, connected to the output end of the activated carbon adsorption column;

[0010] An organic solvent recovery storage tank, connected to the output end of the vacuum filtration device.

[0011] In one embodiment, it further includes:

[0012] An evaporation flask, connected to the output end of the activated carbon adsorption column;

[0013] A rotating base, arranged at the bottom of the evaporation flask;

[0014] A steam condenser, connected between the evaporation flask and the vacuum filtration device.

[0015] In one embodiment, the vacuum filtration device includes a filter membrane, a vacuum nozzle, and a vacuum pump, and the vacuum nozzle is connected to the filter membrane and the vacuum pump.

[0016] In one embodiment, the vacuum filtration device further includes a filtration cup, and the filter membrane is arranged between the filtration cup and the organic solvent recovery storage tank.

[0017] In one embodiment, a heating block is arranged under the evaporation flask, and the heating block is located above the rotating base.

[0018] In one embodiment, a temperature sensor is arranged on the evaporation flask.

[0019] In one embodiment, a flow sensor is arranged on the organic solvent recovery storage tank.

[0020] In one embodiment, the organic solvent recovery storage tank is arranged below the vacuum filtration device.

[0021] In one embodiment, it further includes a first conduit, and the first conduit is connected between the waste liquid storage tank and the activated carbon adsorption column.

[0022] In one embodiment, it further includes a second conduit, and the second conduit is connected between the activated carbon adsorption column and the evaporation flask.

[0023] The present utility model provides a treatment device for classified collection and recovery of organic waste liquid in a dioxin laboratory. By using adsorption and filtration technologies, the organic waste liquid is separated and purified, thereby realizing the reuse of the organic waste liquid generated in the dioxin organic laboratory. Through the preliminary classified collection of the organic waste liquid, the soluble organic impurities in the waste liquid are fully adsorbed and removed by the activated carbon adsorption column, and pure organic solvents are obtained after filtration, avoiding the accumulation and transfer of highly toxic pollutants such as dioxin in the organic waste liquid in the treatment device. The organic solvents purified and recovered by using this device meet the national standard of pesticide residue grade, can save energy consumption and achieve environmental protection. Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Among them:

[0026] Figure 1 is a schematic diagram of the treatment device for classifying, collecting and recycling organic waste liquid in a dioxin laboratory for treating a single organic waste liquid;

[0027] Figure 2 is a schematic diagram of the treatment device for classifying, collecting and recycling organic waste liquid in a dioxin laboratory for treating a mixed organic waste liquid.

[0028] The reference numerals in the drawings are described separately as follows:

[0029] 1. Waste liquid storage tank; 2. Activated carbon adsorption column; 3. Vacuum filtration device; 31. Filter membrane; 32. Vacuum suction nozzle; 33. Vacuum pump; 34. Filter cup; 4. Organic solvent recovery storage tank; 41. Flow sensor; 5. Evaporation flask; 51. Heating block; 52. Temperature sensor; 6. Rotating base; 7. Steam condenser; 8. First conduit; 9. Second conduit. Detailed Embodiments

[0030] For the convenience of understanding the present invention, the present invention will be described in more detail below with reference to the drawings and specific embodiments. It should be noted that when an element is expressed as "connected" to another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. The terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" etc. used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the art belonging to the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not used to limit the present invention.

[0032] In order to solve the problems in the prior art that during the centralized treatment of organic waste liquid, there is a lack of targeted fine classification and recycling in the early stage, highly toxic pollutants such as dioxin in the organic waste liquid are likely to accumulate and transfer in the treatment device, causing environmental pollution, and the large-scale treatment of organic waste liquid relying on the distillation-condensation principle is energy-consuming, a treatment device for the classified collection and recycling of dioxin laboratory organic waste liquid is proposed.

[0033] The following will Figures 1 to 2 elaborate in detail on a treatment device for the classified collection and recycling of dioxin laboratory organic waste liquid provided by an embodiment of the present utility model. Figure 1 、 Figure 2 The devices of Figure 2 correspondingly remove single organic waste liquid and mixed organic waste liquid respectively. The difference is that for removing mixed reagents, Figure 2 there is an additional evaporation-condensation structure, which removes them one by one by utilizing the different boiling points of different types of organic waste liquid in the mixed organic waste liquid. Figure 1 It can also be used to remove single organic waste liquid, but it is not as convenient as directly using Figure 1 and cannot remove mixed organic waste liquid. Figure 2 can achieve Figure 1 all the functions of Figure 1 but Figure 2 cannot achieve the function of removing mixed organic waste liquid.

[0034] Please refer to Figure 1 , Figure 1 which is a schematic diagram of a treatment device for the classified collection and recycling of dioxin laboratory organic waste liquid described in the present utility model for treating single organic waste liquid.

[0035] A treatment device for the classified collection and recycling of dioxin laboratory organic waste liquid includes:

[0036] A waste liquid storage tank 1;

[0037] An activated carbon adsorption column 2, connected to the output end of the waste liquid storage tank 1;

[0038] A vacuum filtration device 3, connected to the output end of the activated carbon adsorption column 2;

[0039] An organic solvent recovery storage tank 4, connected to the output end of the vacuum filtration device 3.

[0040] Specifically, the waste liquid storage tank 1 is mainly used to store single organic waste liquid, such as toluene organic waste liquid, acetone organic waste liquid, and dichloromethane organic waste liquid, etc. The number of waste liquid storage tanks 1 can be determined according to the experimental steps or the types or quantities of organic solvents used for cleaning utensils, and the number of waste liquid storage tanks 1 can be one or more.

[0041] An activated carbon adsorption column 2, which uses a filling column with a relatively large diameter to fill commercially available activated carbon, can meet the adsorption treatment of residual dioxins, pigments, and other organic impurities in a relatively large amount of organic waste liquid.

[0042] A vacuum filtration device 3, which consists of three parts, includes a filtration cup 34 for containing condensate, a filter membrane 31, and a vacuum nozzle 32 connected to an external vacuum pump 33 for suction, filters the organic solvent after adsorption and impurity removal, and removes insoluble impurities in the micron range therein.

[0043] The organic solvent recovery storage tank 4 is used to receive the filtered organic solvent, and different types of organic solvents are contained in their corresponding organic solvent storage tanks.

[0044] The organic waste liquid generated from sample treatment and the organic waste liquid generated from cleaning utensils in the dioxin laboratory can be classified and collected in steps to produce two types of waste liquid, namely single organic waste liquid and mixed organic waste liquid. The two different types of organic waste liquid are separately treated and recycled to meet the pesticide residue level standard for reuse, thereby saving the sample treatment cost and the organic waste liquid treatment cost. At the same time, it can also avoid the transfer and pollution of highly toxic pollutants such as residual dioxins through the organic waste liquid.

[0045] The single organic waste liquid is treated using a device such as Figure 1 . The collected single organic waste liquid is stored in the waste liquid storage tank 1, flows out from the outlet of the waste liquid storage tank 1, enters the activated carbon adsorption column 2 through a liquid guide pipe, and after being fully adsorbed by the activated carbon for soluble impurities therein, flows out from the output end of the activated carbon adsorption column 2 into the filtration cup 34. Under the action of vacuum, the organic solvent filters out insoluble impurities in the micron range through the filter membrane 31 and quickly flows into the organic solvent recovery storage tank 4 for recovery.

[0046] This implementation is for the recovery of single organic waste liquid. The activated carbon adsorption column 2 can adsorb and remove highly toxic pollutants such as residual dioxins or other soluble organic impurities in the single organic waste liquid, adsorb and transfer large-particle dioxins and other highly toxic pollutants in the organic waste liquid to a small volume of activated carbon, avoid the transfer of dioxin pollutants, and reduce the amount of hazardous waste; the vacuum filtration device 3 can quickly filter out fine carbon powder or other insoluble substances in the micron range; the vacuum filtration device 3 can directly, simply, and quickly purify the single organic waste liquid to meet the pesticide residue level standard, avoid environmental pollution, and save energy consumption at the same time.

[0047] As Figure 2 shown, Figure 2 is a schematic diagram of a treatment device for classifying and collecting and recycling organic waste liquid in a dioxin laboratory for treating mixed organic waste liquid.

[0048] In one embodiment, it further includes:

[0049] An evaporation flask 5 is connected to the output end of the activated carbon adsorption column 2;

[0050] A rotating base 6 is arranged at the bottom of the evaporation flask 5;

[0051] A vapor condenser 7 is connected between the evaporation flask 5 and the vacuum filtration device 3.

[0052] Specifically,

[0053] A waste liquid storage tank 1 is mainly used to store mixed organic waste liquids, such as n-hexane-dichloromethane mixed liquids with different ratios, toluene-methanol-dichloromethane mixed liquids, etc.

[0054] The structure and function of the activated carbon adsorption column 2 are the same as those of the activated carbon adsorption column 2 in the single organic waste liquid device.

[0055] The evaporation flask 5 includes a heating block 51, and different temperature values are adjusted according to the boiling points of different solvents, so that the mixed solvents in the evaporation flask 5 are separated in sequence corresponding to their boiling points.

[0056] The vapor condenser 7 uses cooling water as a cooling medium to condense the organic vapor coming out of the evaporation flask 5, so that the gaseous organic vapor becomes a liquid organic solvent.

[0057] The structure and function of the vacuum filtration device 3 are the same as those of Figure 1 the vacuum filtration device 3 in the single organic waste liquid device.

[0058] The organic solvent recovery storage tank 4 includes a flow sensor 41. When the amount of a certain solvent reaches the limit value of the storage bottle capacity or the liquid level in the storage bottle remains unchanged, it will automatically give a prompt. Measures such as replacing the organic solvent recovery storage tank 4 and setting the treatment temperature of other solvents in the evaporation flask 5 can be taken, or measures such as replacing the organic solvent recovery storage tank 4 with other single solvents can be taken.

[0059] The rotating base 6 is used to rotate the evaporation flask 5 to improve the solvent evaporation rate.

[0060] Figure 2It is a mixed organic waste liquid treatment device, which includes a waste liquid storage tank 1, an activated carbon adsorption column 2, an organic waste liquid evaporation flask 5, a rotating base 6, a vapor condenser 7, a vacuum filtration device 3, an organic solvent recovery tank 4 with a flow sensor 41, etc. By coupling three purification steps of adsorption - distillation condensation - filtration, the activated carbon adsorption column 2, the distillation - condensation device and the vacuum filtration device 3 are integrated into one. After the mixed organic waste liquid removes residual dioxins or other soluble organic impurities through the adsorption of the activated carbon adsorption column 2, it is separated according to the increasing boiling points of organic solvents, and then filtered by the vacuum filtration device 3 to remove insoluble substances at the micron level to obtain each single - component organic solvent. The organic solvent recovery tank 4 with a flow sensor 41 can prompt to replace in time when the amount of a certain solvent reaches the critical value of the capacity of the organic solvent recovery tank 4, and can also prompt when the corresponding solvent has completely evaporated and the liquid level remains unchanged. It is necessary to set the treatment temperature of other solvents in the evaporation flask 5 and replace other single - solvent recovery tanks 4.

[0061] By using technologies such as adsorption, distillation - condensation and filtration, the organic waste liquid is separated and purified, so as to realize the reuse of the organic waste liquid generated in the dioxin organic laboratory. By classifying and collecting the organic waste liquid in the early stage, and passing it through the activated carbon adsorption column, the soluble organic impurities in the waste liquid are fully adsorbed and removed. The mixed organic waste liquid is filtered after distillation and condensation to obtain different types of pure organic solvents. It can not only reduce the transfer of dioxin pollutants with the organic waste liquid, achieving a safe and environmental - friendly effect, but also reduce the cost of dioxin detection, realize the reuse of the organic waste liquid, improve the competitiveness of dioxin detection, and has the significance of improving considerable economic benefits and the level of cleaner production.

[0062] In one embodiment, the vacuum filtration device 3 includes a filter membrane 31, a vacuum suction nozzle 32 and a vacuum pump 33, and the vacuum suction nozzle 32 is connected to the filter membrane 31 and the vacuum pump 33.

[0063] Specifically, the vacuum filtration device 3 uses a polytetrafluoroethylene filter membrane 31 with hydrophobicity, high mechanical strength, heat resistance and chemical stability to filter the single - component organic waste liquid component after condensation. The specific pore size is 0.25μm, which can remove extremely fine particles in the organic waste liquid, making the content of insoluble impurities at the micron level in the recovered organic waste liquid extremely low.

[0064] In one embodiment, the vacuum filtration device 3 further includes a filtration cup 34, and the filter membrane 31 is arranged between the filtration cup 34 and the organic solvent recovery tank 4.

[0065] Specifically, before the organic waste liquid is recycled, the vacuum filtration device 3 is required to treat the organic matter in the organic waste liquid and filter dioxins and other impurities. Therefore, the filter membrane 31 is arranged between the filter cup 34 and the organic solvent recovery storage tank 4, which can absorb harmful and toxic substances including dioxins in the organic waste liquid.

[0066] In one embodiment, a heating block 51 is arranged below the evaporation flask 5, and the heating block 51 is located above the base of the rotating base 6.

[0067] The evaporation flask 5 includes a heating block 51, and different temperature values are adjusted and set to separate the mixed solvent in the evaporation flask 5 in turn according to the boiling points.

[0068] Distillation-condensation is to evaporate the solvent by rotating and heating the evaporation flask 5 and condense the organic vapor through the vapor condenser 7. In this process, the solvent in the evaporation flask 5 will be heated to the set temperature by the heating block 51, and the rotating base 6 drives the evaporation flask 5 to rotate evenly, continuously shaking the organic waste liquid in the evaporation flask, and finally shaking the organic test solution evenly, so as to improve the evaporation rate. The vapor then passes through the vapor delivery pipe and enters the vapor condenser 7 from the evaporation flask 5. The low temperature condenses the vapor, and the generated solvent will flow into the collection flask for filtration.

[0069] In one embodiment, a temperature sensor 52 is arranged on the evaporation flask 5.

[0070] The temperature sensor 52 is used to detect the temperature of the evaporation flask 5. According to the different boiling points of different organic solvents, the boiling point temperature is preset to separate the mixed solvent in the evaporation flask 5 in turn according to the boiling points, ensure that the temperature in the evaporation flask 5 is within the preset range, and make the evaporation of toxic gases such as dioxins complete.

[0071] In one embodiment, a flow sensor 41 is arranged on the organic solvent recovery storage tank 4.

[0072] Specifically, the mixed organic waste liquid is adopted Figure 2Device processing: Different mixed organic waste liquids collected according to the experimental steps are stored in the waste liquid storage tank 1. They flow out from the outlet of the waste liquid storage tank 1, enter the activated carbon adsorption column 2 through the liquid guide pipe. After the soluble impurities in them are fully adsorbed by the activated carbon, they flow out from the output end of the activated carbon adsorption column 2 into the evaporation flask 5. Under the action of heating and rotation, the organic solvents evaporate rapidly. The vapor enters the vapor condenser 7 through the vapor outlet. After cooling, the gaseous vapor liquefies into a liquid solvent and flows into the filtration cup 34. The organic solvents filter out micron-sized insoluble impurities through the filter membrane 31 and quickly flow into the organic solvent recovery storage tank 4 for recovery. Under the action of the flow sensor 41, when the amount of a certain solvent reaches the limit value of the capacity of the recovery storage tank 4, the corresponding solvent recovery storage tank 4 can be replaced in time. When the liquid level in the organic solvent recovery storage tank 4 remains unchanged, the boiling temperature of other solvents in the evaporation flask 5 can be set, and the other single-solvent recovery storage tank 4 can be replaced.

[0073] The organic solvent recovery storage tank 4 with a flow sensor 41 can prompt to replace in time when the amount of a certain solvent reaches the limit value of the capacity of the recovery storage tank 4, and can prompt that when the liquid level in the recovery storage tank 4 remains unchanged (indicating that the corresponding solvent has evaporated completely), the treatment temperature of other solvents in the evaporation flask 5 needs to be set, and the other single-solvent recovery storage tank 4 can be replaced.

[0074] In one embodiment, the organic solvent recovery storage tank 4 is arranged below the vacuum filtration device 3.

[0075] Specifically, when the organic waste liquid flows from the vapor condenser 7 to the vacuum filtration device 3, the organic waste liquid needs to rely on gravity to penetrate downward and deposit in the filtration cup 34. The recovery storage tank 4 is arranged below the filtration cup 34, without a power device, which is convenient for operation, thus realizing the reuse of the organic waste liquid generated in the dioxin organic laboratory.

[0076] In one embodiment, it further includes a first conduit 8, and the first conduit 8 is connected between the waste liquid storage tank 1 and the activated carbon adsorption column 2.

[0077] Specifically, the organic waste liquid flows out from the waste liquid storage tank 1. The input end of the first conduit 8 is connected to a position near the bottom of the side of the waste liquid storage tank 1, and the output end of the first conduit 8 is connected to the top of the activated carbon adsorption column 2. The organic waste liquid flows from the waste liquid storage tank 1 to the activated carbon adsorption column 2 through the first conduit 8. The dioxin and other pollutants contained in the large-volume waste liquid are adsorbed and transferred to the small-volume activated carbon, avoiding the transfer of dioxin pollutants and reducing the amount of hazardous waste.

[0078] In one embodiment, it further includes a second conduit 9, and the second conduit 9 is connected between the activated carbon adsorption column 2 and the evaporation flask 5.

[0079] Specifically, after the organic waste liquid is filtered in the activated carbon adsorption column 2 and penetrates downward, the input end of the first conduit 8 is connected to the lower part of the activated carbon adsorption column 2, and the output end of the second conduit 9 is connected to the side of the evaporation flask 5. The organic waste liquid flows from the activated carbon adsorption column 2 to the evaporation flask 5 through the first conduit 8. After the mixed organic waste liquid is used to adsorb and remove residual dioxins or other soluble organic impurities, it is separated according to the ascending boiling points of the organic solvents, realizing the reuse of the organic waste liquid and reducing the treatment cost.

[0080] In the experiment Figure 1 and Figure 2 the entire operation process includes the following:

[0081] First step, classify and collect the concentrated solution in the extraction step, the pre-washing solution of the packed column in the purification step, the concentrated solution, and the organic washing solution of glassware in the pretreatment.

[0082] Second step, perform corresponding treatments according to whether the organic waste liquid is a single organic waste liquid or a mixed organic waste liquid. ① If it is a single organic waste liquid, directly perform adsorption and filtration treatment on the single organic waste liquid; ② If it is a mixed organic waste liquid, perform adsorption, distillation-condensation, and filtration treatments on the mixed organic waste liquid.

[0083] Specifically, the treatment of a single organic waste liquid by this device is as follows: A certain single organic waste liquid enters the activated carbon adsorption column 2 from the waste liquid storage tank 1 through the first conduit 8 to adsorb large particle harmful substances. After being filtered by the vacuum filtration device 3, the organic solvent enters the organic solvent recovery storage tank 4.

[0084] Specifically, the treatment of a mixed organic waste liquid by this device is as follows: Multiple mixed organic waste liquids enter the activated carbon adsorption column 2 from the waste liquid storage tank 1 through the first conduit 8 for adsorption, and then enter the evaporation flask 5 through the second conduit 9. The heating block 51 in the evaporation flask 5 heats the mixed waste liquid, and the rotating base 6 drives the evaporation flask to rotate to shake the mixed waste liquid. The temperature sensor 52 on the evaporation flask 5 detects the temperature inside the bottle, and heats and evaporates according to the set boiling points of different waste liquid solvents. The vapor of the harmful gas enters the vapor condenser 7 and is cooled and liquefied, flowing into the filter cup 34 of the vacuum filtration device 3. After filtration, the organic solvent enters the organic solvent recovery storage tank 4. When the flow sensor 41 detects that the reagent amount in the organic solvent recovery storage tank 4 reaches the preset value, a prompt is given to replace the organic solvent recovery storage tank 4, or change the heating temperature of the heating block 51 while replacing the organic solvent recovery storage tank 4 to heat other reagents. Finally, multiple single organic solvents are obtained in sequence according to different boiling points.

[0085] Among them, after a single organic waste liquid adsorbs and filters organic impurities, it can be directly recycled; after a mixed organic waste liquid is adsorbed, distilled-condensed, and filtered again, single different organic solvents can be collected.

[0086] The beneficial effects of the present utility model are as follows: By using technologies such as adsorption, distillation, and filtration, single organic waste liquid and mixed organic waste liquid are separately separated and purified, so as to realize the reuse of the organic waste liquid generated in the dioxin organic laboratory. By classifying and collecting the organic waste liquid in the early stage, and passing it through the activated carbon adsorption column 2, the soluble organic impurities in the organic waste liquid are fully adsorbed and removed. The single organic waste liquid directly obtains pure organic waste liquid after filtration, and the mixed organic waste liquid obtains different pure organic solvents after distillation, condensation, and then filtration, avoiding the accumulation and transfer of highly toxic pollutants such as dioxin in the organic waste liquid in the treatment device. The organic waste liquid purified and recovered by using this device meets the national standard of pesticide residue grade, and reduces energy consumption, which is beneficial to environmental protection.

[0087] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; under the idea of the present utility model, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present utility model as described above. For the sake of brevity, they are not provided in detail; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A treatment device for the classified collection and recycling of organic waste liquid in a dioxin laboratory, characterized in that, Comprising: Waste liquid storage tank; Activated carbon adsorption column, connected to the output end of the waste liquid storage tank; Vacuum filtration device, connected to the output end of the activated carbon adsorption column; Organic solvent recovery storage tank, connected to the output end of the vacuum filtration device.

2. The treatment device for classified collection and recycling of organic waste liquid in a dioxin laboratory according to claim 1, wherein Further comprising: Evaporation flask, connected to the output end of the activated carbon adsorption column; Rotating base, arranged at the bottom of the evaporation flask; Steam condenser, connected between the evaporation flask and the vacuum filtration device.

3. The treatment device for classified collection and recycling of organic waste liquid in a dioxin laboratory according to claim 1, characterized in that, The vacuum filtration device includes a filter membrane, a vacuum suction nozzle and a vacuum pump, and the vacuum suction nozzle is connected to the filter membrane and the vacuum pump.

4. The treatment device for classified collection and recycling of organic waste liquid in a dioxin laboratory according to claim 3, wherein, The vacuum filtration device further includes a filtration cup, and the filter membrane is arranged between the filtration cup and the organic solvent recovery storage tank.

5. The treatment device for classified collection and recycling of organic waste liquid in a dioxin laboratory according to claim 2, characterized in that, A heating block is arranged under the evaporation flask, and the heating block is located above the rotating base.

6. The treatment device for classified collection and recycling of organic waste liquid in a dioxin laboratory according to claim 2, wherein, A temperature sensor is arranged on the evaporation flask.

7. The treatment device for classified collection and recycling of organic waste liquid in a dioxin laboratory according to claim 2, wherein A flow sensor is arranged on the organic solvent recovery storage tank.

8. The treatment device for classified collection and recycling of organic waste liquid in a dioxin laboratory according to claim 1, characterized in that, The organic solvent recovery storage tank is arranged below the vacuum filtration device.

9. The treatment device for classified collection and recycling of organic waste liquid in a dioxin laboratory according to claim 1, characterized in that, Further comprising a first conduit, and the first conduit is connected between the waste liquid storage tank and the activated carbon adsorption column.

10. The treatment device for classified collection and recycling of organic waste liquid in a dioxin laboratory according to claim 2, characterized in that, Further comprising a second conduit, and the second conduit is connected between the activated carbon adsorption column and the evaporation flask.

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