Antibiotic wastewater treatment equipment for laboratory

Abstract

The utility model relates to the technical field of antibiotic wastewater treatment, and discloses antibiotic wastewater treatment equipment for a laboratory, which comprises a treatment box, a barrel body for collecting antibiotic wastewater, a water pump and a purification box, the barrel body and the water pump are fixedly arranged in the treatment box, the upper end of the barrel body penetrates through the upper end of the treatment box, and the lower end of the barrel body penetrates through the purification box. A flow guide disc with the center sunken downwards is movably installed on the barrel body, a connecting pipe is fixedly connected between the input end of the water pump and the barrel body, the purification box is arranged at the upper end of the treatment box, and a first conveying pipe and a second conveying pipe are arranged at the two ends of the purification box correspondingly; openings are formed in the sides, close to the first conveying pipe and the second conveying pipe, of the purification box, the end of the first conveying pipe penetrates through the treatment box to be fixedly connected with the output end of a water pump, and the purification box is filled with activated carbon and biomass charcoal. The utility model aims to solve the problem that the existing antibiotic wastewater treatment equipment is difficult to clean or replace an adsorbent and is not convenient enough.

Description

Technical Field

[0001] This utility model belongs to the field of antibiotic wastewater treatment technology, specifically relating to antibiotic wastewater treatment equipment for laboratory use. Background Technology

[0002] Antibiotics are widely used in the treatment of human and animal infections due to their unique antibacterial properties. However, because most antibiotics are difficult for organisms to completely digest, they are excreted into the environment through excretion and urine. Even when antibiotic concentrations in the environment are often detected at trace levels, they can still induce antibiotic resistance genes at low concentrations. This can increase bacterial resistance to drugs and pose a significant threat to the evolution of bacterial community structure. Furthermore, due to their low biodegradability, high persistence, and easy bioaccumulation, antibiotics pose a significant threat to aquatic organisms when they accumulate to high concentrations. To reduce the risk of antibiotic resistance transmission and lower ecotoxicological risks, laboratories generally use antibiotic wastewater treatment equipment to treat antibiotics in wastewater.

[0003] Current antibiotic wastewater treatment equipment purifies wastewater by adsorbing pollutants from the wastewater using porous solids. However, as more pollutants accumulate on the surface of the adsorbent, its adsorption capacity gradually decreases. Therefore, it requires regular cleaning or replacement by professionals to maintain adsorption efficiency, which is both difficult and inconvenient. Therefore, we propose an antibiotic wastewater treatment system for laboratory use to address these issues. Utility Model Content

[0004] The purpose of this invention is to solve the problem that current antibiotic wastewater treatment equipment is difficult and inconvenient to clean or replace the adsorbent.

[0005] To achieve the above technical objectives, the technical solution adopted by this utility model is as follows:

[0006] An antibiotic wastewater treatment device for laboratory use includes a treatment tank, a barrel for collecting antibiotic wastewater, a water pump, and a purification tank. The barrel and water pump are fixedly installed inside the treatment tank. The upper end of the barrel extends through the upper end of the treatment tank. A downward-recessed guide plate is movably installed on the barrel. A connecting pipe is fixedly connected between the input end of the water pump and the barrel. The purification tank is located at the upper end of the treatment tank. A first conveying pipe and a second conveying pipe are respectively provided at both ends of the purification tank. An opening is provided on the side of the purification tank near the first and second conveying pipes. The end of the first conveying pipe extends through the treatment tank and is fixedly connected to the output end of the water pump. The interior of the purification tank is filled with activated carbon and biochar. A trapezoidal slot is provided at the upper end of the treatment tank. A trapezoidal block adapted to the trapezoidal slot is fixedly installed at the lower end of the purification tank. A contact block is provided at the end of the first and second conveying pipes near the purification tank. A sealing ring is provided between the contact block and the purification tank. A through hole is provided on the contact block.

[0007] Furthermore, the treatment tank contains a purification tank with an inlet and an outlet at each end. The end of the second delivery pipe penetrates the upper part of the treatment tank and connects to the inlet. The outlet penetrates one side of the treatment tank. A composite membrane is installed inside the purification tank. This structural design allows the composite membrane to further treat the antibiotic wastewater after it passes through the treatment tank, enhancing the wastewater treatment effect.

[0008] Furthermore, the upper end of the processing box has a sliding groove perpendicular to the trapezoidal slot. A slider is slidably installed within the groove, and a compression spring is fixedly installed between the slider and the groove wall. A limit block is fixedly installed at the upper end of the slider. When the end of the trapezoidal block abuts against the groove wall, the limit block is in close contact with the outer wall of the purification box. This structural design, with the compression spring and the limit block, can limit the purification box, firmly locking it at the upper end of the processing box.

[0009] Furthermore, the contact block is equipped with a normally closed solenoid valve, and the processing box is equipped with a battery that can power the water pump and the normally closed solenoid valve. This structural design is simple and easy to use.

[0010] Further specifying, the normally closed solenoid valve has a first wire and a second wire connected to its terminals. The end of the first wire is connected to the negative terminal of the battery. The trapezoidal slot has a mounting groove containing a first conductive block and a second conductive block. The end of the second wire is fixedly connected to the first conductive block. The positive terminal of the battery is fixedly connected to a third wire, the end of which passes through the upper end of the treatment box and is fixedly connected to the second conductive block. An m-shaped conductive block is fixedly installed at the lower end of the trapezoidal block. When the trapezoidal block is located within the trapezoidal slot and abuts against the slot wall, the lower end of the m-shaped conductive block contacts the first and second conductive blocks. With this structural design, when the purification box is located between the first and second delivery pipes, and the end of the trapezoidal block abuts against the trapezoidal slot wall, the m-shaped conductive block contacts the first and second conductive blocks, thereby connecting the circuit of the second and third wires and putting the normally closed solenoid valve into operation.

[0011] Furthermore, the processing box is fixedly equipped with multiple casters, and handles are fixedly installed on both sides of the processing box. This structural design facilitates the movement of the processing box via the handles and casters.

[0012] The utility model adopting the above technical solution has the following advantages:

[0013] In this invention, the purification box is movably attached to the upper end of the treatment box via a trapezoidal block, thereby being movably installed between the first and second conveying pipes. A sealing ring ensures a tight seal between the purification box and the contact block, facilitating the disassembly and assembly of the purification box for replacement or cleaning of the adsorbent inside. Attached Figure Description

[0014] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0015] Figure 1 This is a schematic diagram of the structure of the antibiotic wastewater treatment equipment for laboratory use according to this utility model;

[0016] Figure 2 This is a cross-sectional structural schematic diagram of the antibiotic wastewater treatment equipment for laboratory use according to this utility model;

[0017] Figure 3 This is a schematic diagram of the limiting block part in the antibiotic wastewater treatment equipment for laboratory use according to this utility model;

[0018] Figure 4 This is a cross-sectional view of the trapezoidal block portion in the antibiotic wastewater treatment equipment for laboratory use according to this utility model.

[0019] Figure 5This is a wiring diagram of the battery and normally closed solenoid valve in the antibiotic wastewater treatment equipment for laboratory use according to this utility model.

[0020] Figure 6 for Figure 5 A magnified structural diagram of point A in the middle.

[0021] The symbols for the main components are explained below:

[0022] 1. Processing box; 10. Flow guide plate;

[0023] 11. Trapezoidal slot; 111. First conductive block; 112. Second conductive block;

[0024] 12. Trapezoidal block; 121. M-shaped conductive block;

[0025] 13. Compression spring; 14. Limiting block; 15. Slider;

[0026] 2. Tank body; 3. Water pump;

[0027] 4. Purification chamber; 41. First conveying pipe; 42. Second conveying pipe;

[0028] 43. Contact block; 431. First conductor; 432. Second conductor;

[0029] 5. Purification tank; 51. Composite membrane;

[0030] 6. Storage battery; 61. Third wire. Detailed Implementation

[0031] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. Furthermore, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0032] like Figures 1-6As shown, the antibiotic wastewater treatment equipment for laboratory use of this utility model includes a treatment tank 1, a barrel 2 for collecting antibiotic wastewater, a water pump 3, and a purification tank 4. Multiple casters are fixedly installed on the treatment tank 1, and handles are fixedly installed on both sides of the treatment tank 1. The barrel 2 and water pump 3 are fixedly installed inside the treatment tank 1. The upper end of the barrel 2 extends through the upper end of the treatment tank 1. A downward-recessed guide plate 10 is movably installed on the barrel 2. A connecting pipe is fixedly connected between the input end of the water pump 3 and the barrel 2. The purification tank 4 is located at the upper end of the treatment tank 1. A first conveying pipe 41 and a second conveying pipe 42 are respectively provided at both ends of the purification tank 4. An opening is provided on the side of the purification tank 4 closest to the first conveying pipe 41 and the second conveying pipe 42. The end of the first conveying pipe 41 extends through the treatment tank 1. The purification tank 4 is fixedly connected to the output end of the water pump 3. The interior of the purification tank 4 is filled with activated carbon and biochar. The upper end of the treatment tank 1 is provided with a trapezoidal slot 11. The lower end of the purification tank 4 is fixedly installed with a trapezoidal block 12 that matches the trapezoidal slot 11. The first conveying pipe 41 and the second conveying pipe 42 are both provided with contact blocks 43 near the end of the purification tank 4. A sealing ring is provided between the contact block 43 and the purification tank 4. The contact block 43 is provided with a through hole. The contact block 43 is provided with a normally closed solenoid valve. The normally closed solenoid valve will remain closed when the power is off, thereby sealing the ends of the first conveying pipe 41 and the second conveying pipe 42. When the purification tank 4 is disassembled, leakage at the pipe opening can be prevented. The interior of the treatment tank 1 is provided with a storage battery 6 that can power the water pump 3 and the normally closed solenoid valve.

[0033] The treatment tank 1 contains a purification tank 5. The purification tank 5 has an inlet and an outlet at both ends. The end of the second delivery pipe 42 passes through the upper end of the treatment tank 1 and connects to the inlet. The outlet passes through one side of the treatment tank 1. The purification tank 5 contains a composite membrane 51. The preparation steps of the composite membrane 51 are as follows: 1. Prepare a polyamine solution using antibiotic wastewater or water as a solvent. Immerse the porous support layer in the polyamine solution and remove it after thorough immersion. The mass of the polyamine is 0.1-5.0% of the solvent mass, and the immersion time is 1-10 minutes. 2. Contact one surface of the polymer support layer treated with the polyamine solution prepared with antibiotic wastewater in step 1 with a polyacrylamide chloride solution to obtain an in-situ modified composite membrane; or contact one surface of the polymer support layer treated with the polyamine solution prepared with water in step 1 with a polyacrylamide chloride solution, and then place it in antibiotic wastewater at room temperature or with heating for grafting reaction to obtain a surface-modified composite membrane. The mass of the polyacrylamide chloride is 0.1-1.0% of the mass of the organic solvent, and the contact reaction time in step two is 1-10 min. The antibiotics are one or more of the following: aminoglycoside antibiotics, quinolone antibiotics, β-lactam antibiotics, sulfonamide antibiotics, polypeptide antibiotics, lincosamide antibiotics, chloramphenicol antibiotics, tetracycline antibiotics, and macrolide antibiotics. The antibiotic wastewater is a mixture of multiple antibiotic wastewater discharged from hospitals, livestock farms, and aquaculture farms, and a single type of antibiotic wastewater discharged from pharmaceutical factory workshops; the polyamines are one or more of the following: piperazine, p-phenylenediamine, m-phenylenediamine, o-phenylenediamine, p-cyclohexanediamine, hexamethylenediamine, polyethyleneimine, and p-diazylcyclohexane. The porous support layer is a microfiltration membrane or an ultrafiltration membrane; the material of the porous support layer is polyacrylonitrile, polyethersulfone, polysulfone, polyimide, polyamide, polyetherimide, polyamideimide, or polyvinylidene fluoride; the porous support layer is in the form of a flat plate or hollow fiber; the polyacrylamide chloride is one or more of pyromellitic tetracarboxylic acid chloride, pyromellitic tricarboxylic acid chloride, terephthaloyl chloride, phthaloyl chloride, and adipyl chloride. The solvent of the polyacrylamide chloride solution is one or more of n-hexane, n-heptane, cyclohexane, and toluene. The introduction of antibiotic wastewater brings about a significant performance optimization to the composite membrane. Due to the addition of antibiotic wastewater, the prepared composite membrane has a more hydrophilic surface polyamide layer, thereby achieving a simultaneous improvement in separation performance. Compared to traditional unmodified composite membranes, this membrane exhibits a 166% increase in pure water flux while maintaining excellent selectivity. The antibiotics reacting in the polyamide layer endow the composite membrane with crucial antibacterial activity, demonstrating strong inhibitory effects against common pathogens such as Staphylococcus aureus and Escherichia coli. This antibacterial property is significant in practical applications, demonstrating excellent resistance to biofouling in the treatment of domestic wastewater containing bacteria. During the treatment process, the flux of the contaminated water decreased by no more than 79%. In contrast, unmodified membranes experience a sharp drop in flux due to biofouling when faced with wastewater containing bacteria.Composite membranes, through their antibacterial and anti-biofouling properties, can extend the service life of membranes, reduce operating costs, and improve the stability and reliability of water treatment systems.

[0034] The upper end of the treatment box 1 is provided with a sliding groove perpendicular to the trapezoidal slot 11. A slider 15 is slidably installed in the sliding groove. A compression spring 13 is fixedly installed between the slider 15 and the groove wall. A limit block 14 is fixedly installed at the upper end of the slider 15. When the end of the trapezoidal block 12 abuts against the groove wall of the trapezoidal slot 11, the limit block 14 is in close contact with the outer wall of the purification box 4.

[0035] The normally closed solenoid valve has a first wire 431 and a second wire 432 connected to its terminals. The end of the first wire 431 is connected to the negative terminal of the battery 6. The trapezoidal slot 11 has an installation groove, in which a first conductive block 111 and a second conductive block 112 are installed. The end of the second wire 432 is fixedly connected to the first conductive block 111. The positive terminal of the battery 6 is fixedly connected to a third wire 61. The end of the third wire 61 passes through the upper end of the processing box 1 and is fixedly connected to the second conductive block 112. An m-shaped conductive block 121 is fixedly installed at the lower end of the trapezoidal block 12. When the trapezoidal block 12 is located in the trapezoidal slot 11 and abuts against the wall of the trapezoidal slot 11, the lower end of the m-shaped conductive block 121 contacts the first conductive block 111 and the second conductive block 112.

[0036] The method of using this utility model is as follows:

[0037] When in use, antibiotic wastewater is poured into the tank 2 through the guide plate 10. The water pump 3 works and the wastewater in the tank 2 is transported to the first conveying pipe 41 through the connecting pipe. When the wastewater passes through the purification tank 4, the pollutants in the wastewater are adsorbed by the activated carbon in the purification tank 4. Then, it is output to the purification tank 5 through the second conveying pipe 42. The composite membrane 51 can perform secondary treatment on the water in the purification tank 5, which further improves the wastewater treatment effect.

[0038] When too many pollutants accumulate on the adsorbent in the purification box 4, the limit block 14 is pushed to compress the compression spring 13 until the limit block 14 is no longer in contact with the purification box 4. At this time, the force is applied to make the purification box 4 slide on the treatment box 1. The m-shaped conductive block 121 at the lower end of the trapezoidal block 12 will be misaligned with the first conductive block 111 and the second conductive block 112. At this time, the normally closed solenoid valve is de-energized, and the normally closed solenoid valve in the contact block 43 seals the openings of the first delivery pipe 41 and the second delivery pipe 42 to prevent leakage at the pipe openings. After the purification box 4 is separated from the treatment box 1, it is convenient to clean or replace the purification box 4.

[0039] When replacing the purification box 4, the limiting block 14 can be pushed away from the trapezoidal slot 11, and then the trapezoidal block 12 at the lower end of the purification box 4 can be aligned with the trapezoidal slot 11. Force is applied to push the purification box 4 to the middle of the treatment box 1 until the end of the trapezoidal block 12 abuts against the groove wall of the trapezoidal slot 11. The openings on both sides of the purification box 4 are connected to the through holes on the contact block 43. The sealing ring is located outside the opening and the through hole, ensuring the sealing of the contact block 43 and the purification box 4. At this time, the m-shaped conductive block 121 contacts the first conductive block 111 and the second conductive block 112, thereby making the circuit of the second wire 432 and the third wire 61 conductive, so that the normally closed solenoid valve is in working state, and the first delivery pipe 41 and the second delivery pipe 42 are restored to the conductive state. The overall maintenance of the equipment is less difficult and it is more convenient to use.

[0040] The above provides a detailed description of the antibiotic wastewater treatment equipment for laboratories provided by this utility model. The specific embodiments are described only to aid in understanding the method and core concept of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An antibiotic wastewater treatment device for laboratory use, comprising a treatment tank (1), a barrel (2) for collecting antibiotic wastewater, a water pump (3), and a purification tank (4), wherein the barrel (2) and the water pump (3) are fixedly installed inside the treatment tank (1), the upper end of the barrel (2) penetrates the upper end of the treatment tank (1), a centrally recessed guide plate (10) is movably installed on the barrel (2), a connecting pipe is fixedly connected between the input end of the water pump (3) and the barrel (2), the purification tank (4) is located at the upper end of the treatment tank (1), and a first conveying pipe (41) and a second conveying pipe (42) are respectively provided at both ends of the purification tank (4), and an opening is provided on the side of the purification tank (4) near the first conveying pipe (41) and the second conveying pipe (42), the end of the first conveying pipe (41) penetrates the treatment tank (1) and is fixedly connected to the output end of the water pump (3), and the interior of the purification tank (4) is filled with activated carbon and biochar, characterized in that: The upper end of the processing box (1) is provided with a trapezoidal slot (11), and the lower end of the purification box (4) is fixedly installed with a trapezoidal block (12) that matches the trapezoidal slot (11). The first conveying pipe (41) and the second conveying pipe (42) are both provided with a contact block (43) at the end near the purification box (4). A sealing ring is provided between the contact block (43) and the purification box (4), and a through hole is provided on the contact block (43).

2. The antibiotic wastewater treatment equipment for laboratory use according to claim 1, characterized in that: The treatment tank (1) is equipped with a purification tank (5) inside. The purification tank (5) has an inlet and an outlet at both ends. The end of the second conveying pipe (42) passes through the upper end of the treatment tank (1) and is connected to the inlet. The outlet passes through one side of the treatment tank (1). The purification tank (5) is equipped with a composite membrane (51) inside.

3. The antibiotic wastewater treatment equipment for laboratory use according to claim 2, characterized in that: The upper end of the processing box (1) is provided with a sliding groove perpendicular to the trapezoidal slot (11). A slider (15) is slidably installed in the sliding groove. A compression spring (13) is fixedly installed between the slider (15) and the groove wall. A limit block (14) is fixedly installed at the upper end of the slider (15). When the end of the trapezoidal block (12) abuts against the groove wall of the trapezoidal slot (11), the limit block (14) is in close contact with the outer wall of the purification box (4).

4. The antibiotic wastewater treatment equipment for laboratory use according to claim 3, characterized in that: The contact block (43) is equipped with a normally closed solenoid valve, and the processing box (1) is equipped with a battery (6) that can power the water pump (3) and the normally closed solenoid valve.

5. The antibiotic wastewater treatment equipment for laboratory use according to claim 4, characterized in that: The normally closed solenoid valve is connected to a first wire (431) and a second wire (432) at its terminals. The end of the first wire (431) is connected to the negative terminal of the battery (6). The trapezoidal slot (11) is provided with an installation groove. The installation groove is provided with a first conductive block (111) and a second conductive block (112). The end of the second wire (432) is fixedly connected to the first conductive block (111). The positive terminal of the battery (6) is fixedly connected to a third wire (61). The end of the third wire (61) passes through the upper end of the processing box (1) and is fixedly connected to the second conductive block (112). The lower end of the trapezoidal block (12) is fixedly installed with an m-shaped conductive block (121). When the trapezoidal block (12) is located in the trapezoidal slot (11) and abuts against the wall of the trapezoidal slot (11), the lower end of the m-shaped conductive block (121) is in contact with the first conductive block (111) and the second conductive block (112).

6. The antibiotic wastewater treatment equipment for laboratory use according to claim 1, characterized in that: Multiple casters are fixedly installed on the processing box (1), and handles are fixedly installed on both sides of the processing box (1).

Images