Device for treating 2-amino-4-methylbenzothiazole production mother liquor

Abstract

The utility model discloses a device for treating 2-amino-4-methylbenzothiazole production mother liquor, and relates to the technical field of chemical wastewater treatment. The device comprises a treatment tank for storing mother liquor, an ozone generator is arranged outside the treatment tank; the ozone generator supplies gas through an external gas source system, and the output end of the ozone generator is connected with an exhaust pipe; the exhaust pipe extends into the bottom end in the treatment tank; a submersible pump and an ultra-fine bubble generator are further mounted at the bottom end in the treatment tank; the submersible pump supplies liquid to the ultra-fine bubble generator; and the output end of the exhaust pipe is correspondingly connected with the air inlet end of the ultra-fine bubble generator. The device has the beneficial effects that the problems of poor treatment effect, high cost, high possibility of secondary pollution and the like in the existing treatment technology can be solved, and high-efficiency purification and secondary recycling of the mother liquor are realized.

Description

Technical Field

[0001] This utility model relates to the field of chemical wastewater treatment technology, and in particular to an apparatus for treating the mother liquor produced from 2-amino-4-methylbenzothiazole. Background Technology

[0002] 2-Amino-4-methylbenzothiazole is an important organic chemical intermediate widely used in pesticides, pharmaceuticals, and other fields. Its production process generates a large amount of mother liquor, which typically contains unreacted raw materials, reaction byproducts, and various organic and inorganic impurities. This mother liquor is characterized by its complex composition, high toxicity, high chemical oxygen demand (COD), and poor biodegradability. Direct discharge of such mother liquor would cause serious environmental pollution.

[0003] Currently, the main methods for treating mother liquor from 2-amino-4-methylbenzothiazole production include physical, chemical, and biological methods. Physical methods, such as extraction and adsorption, often only remove some pollutants, making it difficult to achieve compliant discharge of the mother liquor. Chemical methods, such as oxidation and coagulation sedimentation, can reduce pollutant concentrations to some extent, but suffer from high reagent consumption, high treatment costs, and the potential for secondary pollution. Biological methods are ineffective due to the poor biodegradability of the mother liquor, and require complex pretreatment, increasing the difficulty and cost of treatment. Therefore, developing an efficient, economical, and environmentally friendly technology for treating mother liquor from 2-amino-4-methylbenzothiazole production is of significant practical importance. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an apparatus for treating the mother liquor produced by 2-amino-4-methylbenzothiazole, which can solve the problems of poor treatment effect, high cost and easy secondary pollution of existing treatment technologies, and realize the efficient purification and secondary reuse of the mother liquor.

[0005] The technical solution adopted by this utility model is as follows: An apparatus for processing mother liquor produced from 2-amino-4-methylbenzothiazole is provided, including a processing tank for storing the mother liquor; an ozone generator is installed outside the processing tank; the ozone generator is supplied with gas through an external gas source system, and an exhaust pipe is connected to the output end of the ozone generator; the exhaust pipe extends into the bottom of the processing tank; a submersible pump and an ultrafine bubble generator are also installed at the bottom of the processing tank; the submersible pump supplies liquid to the ultrafine bubble generator; the output end of the exhaust pipe is correspondingly connected to the air inlet end of the ultrafine bubble generator.

[0006] To further optimize this technical solution, a treatment tank of an apparatus for treating the mother liquor produced by 2-amino-4-methylbenzothiazole is connected to a discharge port at the bottom; a shut-off valve is installed on the discharge port.

[0007] To further optimize this technical solution, an extension support is fixed at the upper end of the processing tank of an apparatus for processing the mother liquor of 2-amino-4-methylbenzothiazole production; a sampling bucket extending into the processing tank is connected to the extension support by a pull rope.

[0008] The beneficial effects of this utility model are as follows:

[0009] The ozone gas generated by the ozone generator is input into the ultrafine bubble generator through the exhaust pipe. Through the action of the ultrafine bubble generator, it is mixed with the liquid input by the submersible pump under pressure and then released under pressure. Through the effect of pressure dissolution, a large number of ultrafine bubbles are generated, thereby degrading benzene ring organic impurities, reducing the COD and ammonia nitrogen value of the production mother liquor, and achieving the effect of purifying the 2-amino-4-methylbenzothiazole production mother liquor. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] In the diagram, 1. Treatment tank; 2. Ozone generator; 3. Exhaust pipe; 4. Submersible pump; 5. Microbubble generator; 6. Discharge port; 7. Shut-off valve; 8. Extension support; 9. Pull rope; 10. Sampling bucket. Detailed Implementation

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] like Figure 1 As shown, an apparatus for processing mother liquor from the production of 2-amino-4-methylbenzothiazole includes a processing tank 1 for storing the mother liquor; an ozone generator 2 is installed outside the processing tank 1; the ozone generator 2 is supplied with gas through an external gas source system, and an exhaust pipe 3 is connected to the output end of the ozone generator 2; the exhaust pipe 3 extends into the bottom of the processing tank 1; a submersible pump 4 and an ultrafine bubble generator 5 are also installed at the bottom of the processing tank 1; the submersible pump 4 supplies liquid to the ultrafine bubble generator 5; the output end of the exhaust pipe 3 is correspondingly connected to the air inlet end of the ultrafine bubble generator 5.

[0014] The 2-amino-4-methylbenzothiazole production mother liquor is placed into treatment tank 1. Submersible pump 4 and ozone generator 2 are started, generating a large number of ultrafine bubbles containing ozone. These ultrafine bubbles come into full contact with the pollutants in the mother liquor. Utilizing their large specific surface area, high activity, and strong oxidizing properties, they react rapidly with the pollutants, significantly improving treatment efficiency. This effectively reduces the concentration of pollutants such as COD, color, and ammonia nitrogen in the mother liquor. The strong oxidizing effect of ozone itself also accelerates the treatment of pollutants. Through this purification process, the mother liquor changes color from colorless to dark brown and then back to colorless, degrading organic matter and reducing the COD and ammonia nitrogen values, allowing the purified mother liquor to meet discharge standards or be reused.

[0015] In addition to the aforementioned high efficiency in treating mother liquor, this solution also has the advantages of being economical, environmentally friendly, and highly adaptable.

[0016] Compared to traditional chemical oxidation and biological methods, this solution does not require the use of large amounts of chemical reagents, reducing reagent costs; at the same time, the process has low energy consumption and the equipment occupies a small area, reducing investment and operating costs.

[0017] The entire treatment process generates no secondary pollution, and the purified water can be discharged or reused in compliance with environmental protection requirements.

[0018] The method and apparatus of this invention are applicable to the treatment of 2-amino-4-methylbenzothiazole production mother liquor of different concentrations and compositions, and have strong adaptability and versatility.

[0019] like Figure 1 As shown, the bottom of the treatment tank 1 is connected to a discharge port 6, and a shut-off valve 7 is installed on the discharge port 6 to control the discharge of the treated liquid at any time.

[0020] like Figure 1 As shown, an extension bracket 8 is fixed to the upper end of the treatment tank 1; a sampling bucket 10 extending into the treatment tank 1 is connected to the extension bracket 8 by a pull rope 9. The sampling bucket 10 allows for sampling of the mother liquor in the treatment tank 1 at any time, facilitating real-time testing of the purification effect on the mother liquor.

[0021] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An apparatus for treating a 2-amino-4-methylbenzothiazole production mother liquor, characterized by: The application relates to a treatment tank (1) for storing mother liquor; an ozone generator (2) is arranged outside the treatment tank (1); the ozone generator (2) is supplied with air by an external air supply system, and an exhaust pipe (3) is connected to the output end of the ozone generator (2); the exhaust pipe (3) extends into the bottom end of the treatment tank (1); a submersible pump (4) and an ultra-fine bubble generator (5) are further arranged at the bottom end of the treatment tank (1); the submersible pump (4) supplies liquid to the ultra-fine bubble generator (5); and the output end of the exhaust pipe (3) is correspondingly connected to the air inlet end of the ultra-fine bubble generator (5).

2. The apparatus for treating 2-amino-4-methylbenzothiazole production mother liquor according to claim 1, characterized in that: A discharge port (6) is connected to the bottom of the treatment tank (1); and a related shut-off valve (7) is arranged on the discharge port (6).

3. The apparatus for treating 2-amino-4-methylbenzothiazole production mother liquor according to claim 1, characterized in that: An extension support (8) is fixed to the upper end of the treatment tank (1); and a sampling bucket (10) extending into the treatment tank (1) is connected to the extension support (8) through a pull rope (9).

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