A phthalimide wastewater treatment device

Abstract

The utility model discloses a kind of phthalimide wastewater treatment devices, it is related to wastewater treatment field, including sedimentation tank, filter box, ozone treatment box and super membrane reaction box, further including conveying pipe, the conveying pipe is arranged between sedimentation tank, filter box, ozone treatment box and super membrane reaction box, and sedimentation tank, filter box, ozone treatment box and super membrane reaction box are connected into a whole by conveying pipe, for carrying out multiple mode under phthalimide wastewater filtration decomposition treatment, anaerobic treatment component, the anaerobic treatment component is arranged in the inner chamber of ozone treatment box, by the anaerobic treatment component of being arranged in the inner chamber of ozone treatment box, ozone enters helical gas guide pipe by connecting pipe, is released into wastewater evenly through air hole, helical gas guide pipe makes ozone form three-dimensional diffusion in tank, delays the flow rate of ozone in tank body, so that it can be mixed with wastewater fully, avoid the waste of reagent, improve the working efficiency of ozone to wastewater treatment.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment, specifically a phthalimide wastewater treatment device. Background Technology

[0002] Phthalimide is a key intermediate in the dye and pharmaceutical industries. Its production wastewater contains phthalimide residues with stable cyclic structures, organic acids, and organic solvents, exhibiting significant characteristics such as high COD concentration, poor biodegradability, and difficulty in degradation. Ozone oxidation has become one of the core technologies for treating this type of wastewater because it can efficiently break the chemical bonds of organic pollutants.

[0003] Existing ozone treatment devices mostly adopt a straight duct gas distribution structure, where ozone is directly released into the wastewater through openings at the end of the duct or on the side wall. This prevents the ozone from fully mixing with the wastewater, resulting in a large amount of ozone escaping without participating in the reaction. This not only wastes reagents but also increases the burden on exhaust gas treatment. Furthermore, it cannot capture the dynamic changes in concentration within the chamber in real time, often leading to extreme situations such as "incomplete oxidation" or "microbial inactivation," which in turn affects the device's efficiency in treating wastewater to some extent. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a phthalimide wastewater treatment device, which solves the problems described in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a phthalimide wastewater treatment device, comprising a sedimentation tank, a filter box, an ozone treatment box, and an ultrafiltration membrane reaction box, and further comprising: The conveying pipe is installed between the sedimentation tank, the filter box, the ozone treatment box and the ultra-membrane reaction box. The conveying pipe connects the sedimentation tank, the filter box, the ozone treatment box and the ultra-membrane reaction box into a whole, and is used to filter and decompose phthalimide wastewater in multiple modes. An anaerobic treatment component is installed inside the ozone treatment chamber. It is used to introduce ozone into various locations inside the ozone treatment chamber to fully integrate and decompose the organic compounds in the wastewater, thereby improving the efficiency of ozone in wastewater treatment.

[0006] Furthermore, the anaerobic treatment component includes a connecting pipe, a valve, a gas guide pipe, and gas holes. The connecting pipe is installed on the top of the ozone treatment box, and a valve is installed inside the connecting pipe. The bottom of the connecting pipe is fixedly connected to one end of the gas guide pipe inside the ozone treatment box, and gas holes are evenly spaced on the surface of the gas guide pipe.

[0007] Furthermore, the cross-section of the gas duct is spiral-shaped, and an ozone content sensor is embedded in the inner wall of the ozone treatment chamber.

[0008] Furthermore, an inlet pipe is provided on one side of the sedimentation tank, and buffer nets are installed alternately inside the sedimentation tank.

[0009] Furthermore, multiple sets of the buffer nets form an "S" shape within the inner cavity of the settling tank.

[0010] Furthermore, an activated carbon filter assembly is installed in the inner cavity of the filter box, and an aeration assembly is installed at the bottom of the filter box.

[0011] Furthermore, the aeration assembly includes a mounting base, an aeration disc, an external connecting pipe, a flushing pipe, and a solenoid valve. The mounting base is disposed in the inner cavity of the filter box, the aeration disc is installed inside the mounting base, the external connecting pipe is installed at the bottom of the mounting base, a flushing pipe is provided on one side of the external connecting pipe, and a solenoid valve is installed inside the flushing pipe.

[0012] Furthermore, an outlet pipe is installed on one side of the bottom of the ultra-membrane reaction chamber, and an ultra-membrane filtration assembly is installed inside the ultra-membrane reaction chamber.

[0013] This utility model has the following beneficial effects: 1. This phthalimide wastewater treatment device, through an anaerobic treatment component installed in the inner cavity of the ozone treatment box, allows ozone to enter the spiral gas guide pipe through the connecting pipe and be evenly released into the wastewater through the gas holes. The spiral gas guide pipe enables ozone to form a three-dimensional diffusion within the box, slowing down the flow rate of ozone inside the box, allowing it to be fully mixed with the wastewater, avoiding waste of reagents, and improving the working efficiency of ozone in wastewater treatment.

[0014] 2. This phthalimide wastewater treatment device uses an anaerobic treatment component in conjunction with an ozone content sensor. The ozone content sensor monitors the concentration in real time, and the dosage is adjusted by a valve to avoid incomplete oxidation due to too low a concentration or inhibition of microbial activity due to too high a concentration, thus achieving a synergistic balance between oxidation efficiency and biodegradation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the emission component of this utility model; Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0016] In the diagram, 1. Sedimentation tank; 101. Inlet pipe; 2. Delivery pipe; 3. Filter box; 4. Ozone treatment box; 5. Ultrafiltration membrane reaction box; 501. Outlet pipe; 6. Ultrafiltration membrane filter assembly; 7. Activated carbon filter assembly; 8. Aeration assembly; 801. Mounting base; 802. Aeration disc; 803. External pipe; 804. Flushing pipe; 805. Solenoid valve; 9. Anaerobic treatment assembly; 901. Connecting pipe; 902. Valve; 903. Air guide pipe; 904. Vent; 10. Ozone content sensor; 11. Buffer net. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] The following is based on Figures 1-4 This invention describes the phthalimide wastewater treatment device provided in the embodiments of the present invention.

[0020] Please see Figures 1-4This utility model provides a technical solution: a phthalimide wastewater treatment device, including a sedimentation tank 1, a filter box 3, an ozone treatment box 4, and an ultrafiltration membrane reactor 5, and also includes a conveying pipe 2, which is disposed between the sedimentation tank 1, the filter box 3, the ozone treatment box 4, and the ultrafiltration membrane reactor 5, connecting the sedimentation tank 1, the filter box 3, the ozone treatment box 4, and the ultrafiltration membrane reactor 5 into a whole, for filtering and decomposing phthalimide wastewater under multiple modes. An anaerobic treatment component 9 is disposed inside the ozone treatment box 4, for introducing ozone into the ozone treatment box. 4. The ozone treatment unit 9 is equipped with a connecting pipe 901, a valve 902, a gas guide pipe 903, and a gas hole 904. The connecting pipe 901 is installed on the top of the ozone treatment box 4. The valve 902 is installed inside the connecting pipe 901. The bottom of the connecting pipe 901 is fixedly connected to one end of the gas guide pipe 903 inside the ozone treatment box 4. The surface of the gas guide pipe 903 is provided with gas holes 904 at equal intervals. The cross-section of the gas guide pipe 903 is spiral. An ozone content sensor 10 is embedded in the inner wall of the ozone treatment box 4. For details, please refer to [link / reference]. Figures 1 to 3 As shown, after the phthalimide wastewater undergoes sedimentation treatment in sedimentation tank 1 and filtration and aeration treatment inside filter box 3, it is transported to the ozone treatment box 4 through conveying pipe 2. Then, valve 902 of anaerobic treatment component 9 is opened, and ozone generated by ozone generator enters spiral air guide pipe 903 through connecting pipe 901. It is then evenly released into the wastewater through air holes 904. Spiral air guide pipe 903 causes ozone to form a three-dimensional diffusion in the box, which is fully mixed with the wastewater. At the same time, ozone content sensor 10 monitors the concentration in real time and adjusts the dosage through valve 902 to avoid incomplete oxidation due to too low a concentration or inhibition of microbial activity due to too high a concentration.

[0021] A liquid inlet pipe 101 is provided on one side of the sedimentation tank 1, and buffer nets 11 are installed in an alternating manner inside the sedimentation tank 1. Multiple sets of buffer nets 11 form an "S" shape in the inner cavity of the sedimentation tank 1. For details, please refer to [link / reference]. Figures 1 to 3 As shown, phthalimide wastewater enters the sedimentation tank 1 through the inlet pipe 101. The wastewater then enters the "S"-shaped flow channel formed by the buffer net 11. In the meandering "S"-shaped flow channel, suspended particles gradually settle to the bottom of the tank under the action of gravity. The buffer net 11 simultaneously intercepts impurities such as hair and fibers. The preliminarily purified wastewater enters the filter box 3 through the conveying pipe 2.

[0022] An activated carbon filter assembly 7 is installed in the inner cavity of the filter box 3. An aeration assembly 8 is installed at the bottom of the filter box 3. The aeration assembly 8 includes a mounting base 801, an aeration disc 802, an external pipe 803, a flushing pipe 804, and a solenoid valve 805. The mounting base 801 is installed in the inner cavity of the filter box 3. The aeration disc 802 is installed inside the mounting base 801. The external pipe 803 is installed at the bottom of the mounting base 801. A flushing pipe 804 is installed on one side of the external pipe 803. A solenoid valve 805 is installed inside the flushing pipe 804. An outlet pipe 501 is installed on one side of the bottom of the ultra-membrane reaction tank 5. An ultra-membrane filter assembly 6 is installed inside the ultra-membrane reaction tank 5. For details, please refer to [link / reference]. Figures 1 to 4 As shown, phthalimide wastewater enters the settling tank 1 through the inlet pipe 101 for settling treatment. After settling, the wastewater flows from top to bottom through the activated carbon filter assembly 7, where small molecule organic matter is adsorbed and retained. Simultaneously, the aeration assembly 8 is activated, and an external air source enters the aeration disc 802 through the external pipe 803. The released microbubbles come into countercurrent contact with the water flow, accelerating the flow rate of the wastewater inside the filter box 3. This allows the gas to fully mix with the organic compounds in the wastewater, thus filtering the wastewater. After the device has finished treating the wastewater, the electricity is switched off. The solenoid valve 805 and flushing pipe 804 are used to introduce clean water or compressed air for backwashing. The flushing wastewater is discharged through the drain outlet to restore the adsorption performance of activated carbon. The treated wastewater enters the ozone treatment tank 4 through the conveying pipe 2, where it is decomposed by ozone. The treated wastewater then enters the ultra-membrane reaction tank 5 through the conveying pipe 2. After entering the ultra-membrane reaction tank 5, the wastewater remains on the ultra-membrane filter assembly 6. Under pressure, the ultra-membrane filter assembly 6 traps residual microparticles, colloids, and microorganisms. The purified wastewater is then discharged from the outlet pipe 501.

[0023] In operation, wastewater enters the settling tank 1 through the inlet pipe 101 and flows through the buffer net 11, forming an "S"-shaped meandering flow. The extended flow channel increases the flow velocity of the wastewater. After pretreatment, the wastewater enters the filter box 3 and flows from top to bottom through the activated carbon filter component 7. Simultaneously, the aeration component 8 is activated, and an external air source enters the aeration disc 802 through the external pipe 803. Microbubbles come into counter-current contact with the water flow, forming turbulence and improving mass transfer efficiency. After the wastewater enters the ozone treatment box 4, the valve 902 of the anaerobic treatment component 9 is opened, and ozone is released. The ozone enters the spiral air guide pipe 903 through the connecting pipe 901, and forms a three-dimensional diffusion through the air pores 904, which is fully mixed with the wastewater. Anaerobic microorganisms in the chamber degrade intermediate products, and the ozone content sensor 10 monitors the concentration in real time. The dosage is precisely controlled by the valve 902. The ozone-treated wastewater enters the ultra-membrane reaction tank 5 and flows through the ultra-membrane filter component 6 under pressure, which intercepts residual microparticles, colloids and microorganisms. Finally, the purified wastewater is discharged through the liquid outlet pipe 501, meeting the requirements for discharge standards.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A phthalimide wastewater treatment device, comprising a sedimentation tank (1), a filter box (3), an ozone treatment box (4), and an ultrafiltration membrane reaction box (5), characterized in that, It also includes: The conveying pipe (2) is set between the sedimentation tank (1), the filter box (3), the ozone treatment box (4) and the ultra-membrane reaction box (5). The conveying pipe (2) connects the sedimentation tank (1), the filter box (3), the ozone treatment box (4) and the ultra-membrane reaction box (5) into a whole, and is used to filter and decompose phthalimide wastewater in multiple modes. Anaerobic treatment component (9) is installed in the inner cavity of ozone treatment box (4) to introduce ozone into various positions in the inner cavity of ozone treatment box (4) to fully integrate and decompose the organic compounds in wastewater, thereby improving the working efficiency of ozone in wastewater treatment.

2. The phthalimide wastewater treatment device according to claim 1, characterized in that: The anaerobic treatment component (9) includes a connecting pipe (901), a valve (902), a gas guide pipe (903), and air holes (904). The connecting pipe (901) is installed on the top of the ozone treatment box (4). The valve (902) is installed inside the connecting pipe (901). The bottom of the connecting pipe (901) is fixedly connected to one end of the gas guide pipe (903) inside the ozone treatment box (4). Air holes (904) are evenly spaced on the surface of the gas guide pipe (903).

3. The phthalimide wastewater treatment device according to claim 2, characterized in that: The cross-section of the gas duct (903) is spiral, and an ozone content sensor (10) is embedded in the inner wall of the ozone treatment box (4).

4. The phthalimide wastewater treatment device according to claim 1, characterized in that: The sedimentation tank (1) is provided with an inlet pipe (101) on one side, and buffer nets (11) are installed alternately inside the sedimentation tank (1).

5. The phthalimide wastewater treatment device according to claim 4, characterized in that: Multiple sets of the buffer nets (11) form an "S" shape in the inner cavity of the settling tank (1).

6. The phthalimide wastewater treatment device according to claim 1, characterized in that: The filter box (3) is equipped with an activated carbon filter assembly (7) in its inner cavity and an aeration assembly (8) at the bottom of the filter box (3).

7. The phthalimide wastewater treatment device according to claim 6, characterized in that: The aeration assembly (8) includes a mounting base (801), an aeration disc (802), an external connecting pipe (803), a flushing pipe (804), and a solenoid valve (805). The mounting base (801) is located in the inner cavity of the filter box (3). The aeration disc (802) is installed inside the mounting base (801). The external connecting pipe (803) is installed at the bottom of the mounting base (801). A flushing pipe (804) is provided on one side of the external connecting pipe (803). A solenoid valve (805) is installed inside the flushing pipe (804).

8. The phthalimide wastewater treatment device according to claim 1, characterized in that: The ultra-membrane reaction chamber (5) has an outlet pipe (501) installed on one side of its bottom, and an ultra-membrane filtration assembly (6) is installed inside the ultra-membrane reaction chamber (5).

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