An apparatus for removing antibiotics in pharmaceutical wastewater

Abstract

This utility model relates to the field of wastewater treatment, specifically to a device for removing antibiotics from pharmaceutical wastewater. The device includes a treatment tank with an inlet and an outlet at its upper and lower ends, respectively. A motor is fixed to the top of the treatment tank, and a rotating shaft is inserted into the motor's output end. The bottom of the rotating shaft is rotatably mounted on the bottom of the treatment tank. Photocatalytic plates are symmetrically fixed to the surface of the rotating shaft. Ultraviolet high-pressure mercury lamps are symmetrically fixed to the top of the treatment tank. Through the arrangement of components such as the arc-shaped protrusion, the rotating shaft, and the first cleaning mechanism, a first cleaning brush cleans the inner wall of the treatment tank and the surface of the arc-shaped protrusion, preventing biofilm and scale from the wastewater from adhering to the surface and reducing the efficiency of the photocatalytic reaction.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment, and in particular to a device for removing antibiotics from pharmaceutical wastewater. Background Technology

[0002] With the rapid development of the pharmaceutical industry, the discharge of antibiotic-containing wastewater continues to increase. This type of wastewater is characterized by high biotoxicity and difficulty in degradation; traditional biological treatment methods have a removal efficiency of less than 20% (according to research data from *China Environmental Science*, 2023). Photocatalytic oxidation technology is considered an ideal solution due to its ability to efficiently degrade antibiotic molecules.

[0003] However, existing photocatalytic wastewater treatment equipment has certain technical bottlenecks. Under ultraviolet light, microorganisms in the wastewater rapidly form a biofilm (thickness can reach 200-500μm) on the surface of the catalytic plate. At the same time, calcium and magnesium ion scale and organic impurities co-deposit to form a dense covering layer. Because the attached layer blocks light penetration (transmittance <30%) and occupies the reactive sites, it further affects the efficiency of photocatalytic reaction. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a device for removing antibiotics from pharmaceutical wastewater, so as to solve the technical problems in the prior art.

[0005] To achieve the above objectives, this utility model provides a device for removing antibiotics from pharmaceutical wastewater, comprising: a treatment tank, wherein an inlet and an outlet are respectively provided at the upper and lower ends of the treatment tank; a motor is fixed to the top of the treatment tank, and a rotating shaft is inserted into the output end of the motor; the bottom of the rotating shaft is rotatably mounted at the bottom of the treatment tank; photocatalytic plates are symmetrically fixedly mounted on the surface of the rotating shaft; ultraviolet high-pressure mercury lamps are symmetrically fixedly mounted on the top of the treatment tank; and a first cleaning mechanism for cleaning the inner wall of the treatment tank is provided at the lower end of the rotating shaft.

[0006] The first cleaning mechanism includes: a connecting plate, which is fixedly installed at the lower end of the rotating shaft. A cam groove is provided on the surface of the connecting plate, and a guide rod is symmetrically slidably installed inside the cam groove. A positioning block is fitted on the surface of the guide rod and the positioning block is fixed to the bottom of the processing box. A first hinge rod is hingedly installed at the end of the guide rod, and a first cleaning brush is hingedly installed at one end of the first hinge rod. The first cleaning brush is movably installed on the inner wall of the processing box.

[0007] Preferably, the processing box consists of a barrel body and a barrel lid, and the barrel lid and barrel body are detachably installed with several bolts at equal intervals along the circumference.

[0008] Preferably, a filter plate is fixedly installed on the upper part of the inner wall of the treatment tank near the water inlet, and the top of the filter plate overlaps the bottom wall of the tank lid.

[0009] Preferably, an outer spline sleeve is fixedly installed at the output end of the motor, and an inner spline sleeve that mates with the outer spline sleeve is fixedly installed at the top of the rotating shaft.

[0010] Preferably, the first cleaning brush is a semi-circular ring, and a slider is symmetrically fixedly connected to the side of the first cleaning brush near the inner wall of the treatment box. The inner wall of the treatment box is symmetrically provided with grooves that cooperate with the slider on both sides.

[0011] Preferably, ball bearings are installed on both sides of the slider, and the inner wall of the slide groove is symmetrically provided with arc-shaped guide grooves that cooperate with the ball bearings in the vertical direction.

[0012] Preferably, a second cleaning mechanism is provided between the surface of the guide rod and the photocatalytic plate;

[0013] The second cleaning mechanism includes: a movable rod, which is horizontally movably disposed at the lower end of the rotating shaft; a connecting ring is fixedly installed between the two ends of the movable rod; a push plate is fixedly connected to the surface of the guide rod; one side of the push plate rests on the outer wall of the connecting ring; a second hinge rod is symmetrically hinged to the top of the connecting ring; a second cleaning brush is hinged to one end of the second hinge rod; the middle part of the second cleaning brush is slidably mounted on the surface of the rotating shaft; and both ends of the second cleaning brush rest on the surface of the adjacent photocatalytic plate.

[0014] Preferably, the inner wall of the processing box is provided with a plurality of arc-shaped protrusions equidistantly installed along the circumference, and the arc-shaped protrusions are made of 316L stainless steel mirror-finished arc plates.

[0015] The beneficial effects of this utility model are as follows: The device for removing antibiotics from pharmaceutical wastewater using this utility model, through the arrangement of components such as the arc-shaped protrusion, the rotating shaft and the first cleaning mechanism, enables the first cleaning brush to clean the inner wall of the treatment tank and the surface of the arc-shaped protrusion, thereby preventing biofilm and scale in the wastewater from adhering to its surface and reducing the efficiency of photocatalytic reaction.

[0016] By incorporating components such as the photocatalytic plate, guide rod, and second cleaning mechanism, the second cleaning brush cleans the surface of the photocatalytic plate, thereby removing biofilms and scale deposits and further enhancing the photocatalytic reaction. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a schematic diagram of the main cross-section of the present invention;

[0020] Figure 3 This is a schematic diagram of the photocatalytic plate and the first cleaning mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the rotating shaft, guide rod, and movable rod of this utility model;

[0022] Figure 5 This is a schematic diagram of the connecting disc, cam groove, and rotating shaft of this utility model;

[0023] Figure 6 This is a schematic diagram of the components of this utility model, including the processing box, connecting plate, and connecting ring.

[0024] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0025] The diagram is marked as follows:

[0026] 1. Treatment tank; 101. Inlet; 102. Outlet; 103. Slide groove; 2. Motor; 201. Outer spline sleeve; 3. Rotating shaft; 301. Inner spline sleeve; 4. Photocatalytic plate; 5. Arc-shaped protrusion; 6. Ultraviolet high-pressure mercury lamp tube; 7. First cleaning mechanism; 701. Connecting plate; 702. Cam groove; 703. Guide rod; 704. Positioning block; 705. First hinge rod; 706. First cleaning brush; 7061. Slider; 8. Second cleaning mechanism; 801. Movable rod; 802. Connecting ring; 803. Push plate; 804. Second hinge rod; 805. Second cleaning brush; 9. Filter plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0028] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] The first aspect of this invention provides a device for removing antibiotics from pharmaceutical wastewater, such as... Figure 1-7 As shown, the system includes: a treatment tank 1, with an inlet 101 and an outlet 102 at its upper and lower ends, respectively; a motor 2 fixed to the top of the treatment tank 1, with a rotating shaft 3 inserted into the output end of the motor 2; the bottom of the rotating shaft 3 is rotatably mounted on the bottom of the treatment tank 1; photocatalytic plates 4 are symmetrically fixedly mounted on the surface of the rotating shaft 3; it should be noted that the photocatalytic plates 4 are made of ceramic material and coated with a photocatalyst for photocatalytic reaction of wastewater; ultraviolet high-pressure mercury lamps 6 are symmetrically fixedly mounted on the top of the treatment tank 1; and a first cleaning mechanism 7 for cleaning the inner wall of the treatment tank 1 is provided at the lower end of the rotating shaft 3; it should be noted that the bottom of the rotating shaft 3 is rotatably mounted on the bottom of the treatment tank 1 via bearings to improve the stability of the rotation of the rotating shaft 3.

[0030] The first cleaning mechanism 7 includes: a connecting plate 701, which is fixedly installed at the lower end of the rotating shaft 3. A cam groove 702 is provided on the surface of the connecting plate 701, and a guide rod 703 is symmetrically slidably installed inside the cam groove 702. A positioning block 704 is fitted on the surface of the guide rod 703 and is fixed to the bottom of the processing box 1. A first hinge rod 705 is hinged to the end of the guide rod 703, and a first cleaning brush 706 is hinged to one end of the first hinge rod 705. The first cleaning brush 706 is movably installed on the inner wall of the processing box 1.

[0031] In the treatment of antibiotics in pharmaceutical wastewater via photocatalytic reaction, the wastewater first passes through inlet 101 and is filtered by filter plate 9 to remove floating matter and large particulate impurities before entering treatment tank 1. Motor 2 is started, and its output drives shaft 3 to rotate, causing photocatalytic plates 4 on the surface of shaft 3 to slowly agitate the wastewater, enhancing the photocatalytic reaction efficiency. As shaft 3 rotates, the connecting plate 701 fixed at its bottom rotates. Because the center of cam groove 702 deviates from the axis of shaft 3, the connecting plate 701... As the cam groove 702 rotates, the guide rod 703, which slides symmetrically in the cam groove 702 on the 1, reciprocates and extends. When the guide rod 703 approaches the inner wall of the treatment tank 1, the first hinge rod 705, which is hinged at the end of the guide rod 703, pushes the first cleaning brush 706, which is slidably installed on the inner wall of the treatment tank 1, to move upward. This allows the first cleaning brush 706 to clean the inner wall of the treatment tank 1 and the surface of the arc-shaped protrusion 5, preventing biofilm and scale in the wastewater from adhering to its surface and reducing the efficiency of the photocatalytic reaction.

[0032] In this embodiment, the treatment box 1 consists of a barrel body and a barrel lid, and the barrel lid and barrel body are detachably installed with several bolts at equal intervals along the circumference. The treatment box 1 is detachably assembled from the barrel body and the barrel lid, which facilitates the opening of the treatment box 1 and makes it convenient to clean the inside of the treatment box 1.

[0033] In this embodiment, a filter plate 9 is fixedly installed on the upper part of the inner wall of the treatment tank 1 near the inlet 101, and the top of the filter plate 9 overlaps the bottom wall of the lid. By setting the filter plate 9, some large particulate impurities in the pharmaceutical wastewater are isolated and prevented from entering the interior of the treatment tank 1. After the lid is opened, the large particulate impurities can be removed, thereby performing a certain degree of pretreatment on the wastewater.

[0034] In this embodiment: an outer spline sleeve 201 is fixedly installed at the output end of the motor 2, and an inner spline sleeve 301 that mates with the outer spline sleeve 201 is fixedly installed on the top of the rotating shaft 3. After the barrel lid on the processing box 1 is bolted to the barrel body, the outer spline sleeve 201 at the output end of the motor 2 is inserted into the inner spline sleeve 301 on the top of the rotating shaft 3. When the motor 2 rotates, it can drive the rotating shaft 3 to rotate. This installation method facilitates the separation of the rotating shaft 3 from the motor 2 and makes it convenient to disassemble the barrel lid.

[0035] In this embodiment: the first cleaning brush 706 is semi-circular, and a slider 7061 is symmetrically fixedly connected to the side of the first cleaning brush 706 near the inner wall of the treatment box 1. Sliding grooves 103 that cooperate with the slider 7061 are symmetrically opened on both sides of the inner wall of the treatment box 1. During the cleaning of the inner wall of the treatment box 1 and the surface of the arc-shaped protrusion 5 by the first cleaning brush 706, the sliding installation of the first cleaning brush 706 on the inner wall of the treatment box 1 improves the stability of the first cleaning brush 706's movement.

[0036] In this embodiment, ball bearings are installed on both sides of the slider 7061, and the inner wall of the slide groove 103 is symmetrically provided with arc-shaped guide grooves in the vertical direction to cooperate with the ball bearings. By cooperating with the arc-shaped guide grooves, the contact area between the two can be reduced, further reducing the friction between the sides of the slider 7061 and the inner wall of the slide groove 103, making the slider 7061 move more smoothly.

[0037] In this embodiment: a second cleaning mechanism 8 is provided between the surface of the guide rod 703 and the photocatalytic plate 4;

[0038] The second cleaning mechanism 8 includes: a movable rod 801, which is horizontally movably disposed at the lower end of the rotating shaft 3. It should be noted that a ball bearing is provided between the movable rod 801 and the inner wall of the rotating shaft 3, and the ball bearing is installed on the inner wall of the rotating shaft 3 to improve the stability of the movable rod 801 during reciprocating movement. A connecting ring 802 is fixedly installed between the two ends of the movable rod 801. A push plate 803 is fixedly connected to the surface of the guide rod 703. One side of the push plate 803 rests on the outer wall of the connecting ring 802. A second hinge rod 804 is symmetrically hinged to the top of the connecting ring 802, and a second cleaning brush 805 is hinged to one end of the second hinge rod 804. The middle part of the second cleaning brush 805 is slidably mounted on the surface of the rotating shaft 3, and the two ends of the second cleaning brush 805 rest on the surface of the adjacent photocatalyst plate 4. It should be added that the second cleaning brush 805 is slidably mounted in the sliding groove on the surface of the rotating shaft 3 via a sliding block, and ball bearings are installed on both sides of the sliding block. Furthermore, the inner wall of the sliding groove is symmetrically provided with matching arc-shaped guide grooves. By cooperating with the ball bearings and the arc-shaped guide grooves, the contact area between the two can be reduced, further reducing the friction between the second cleaning brush 805 and the surface of the rotating shaft 3, making the second cleaning brush 805 move up and down more smoothly.

[0039] Furthermore, during the reciprocating movement of the guide rod 703, the push plates 803 fixed on the surfaces of the two guide rods 703, through reciprocating movement in the same direction, push the connecting ring 802 fixed between the two ends of the movable rod 801 to reciprocate horizontally. This causes the second hinge rod 804 hinged on the connecting ring 802 to drive the second cleaning brush 805 slidably mounted on the surface of the rotating shaft 3 to move up and down. This allows the second cleaning brush 805 to clean the surface of the photocatalytic plate 4, thereby removing biofilm and scale deposits from the surface of the photocatalytic plate 4 and further enhancing the photocatalytic reaction.

[0040] In this embodiment, several arc-shaped protrusions 5 are equidistantly installed along the circumference of the inner wall of the treatment tank 1, and the arc-shaped protrusions 5 are made of 316L stainless steel mirror-finished arc plates. By using 316L stainless steel mirror-finished arc plates, the light reflection ability can be enhanced, thereby improving the high-light reflection effect of the inner wall of the equipment tank used to remove antibiotics from pharmaceutical wastewater, and thus enhancing the photocatalytic effect inside the water body.

[0041] Working principle: In the treatment of antibiotics in pharmaceutical wastewater through photocatalytic reaction, the wastewater first passes through inlet 101 and is filtered by filter plate 9 to remove floating matter and large particulate impurities before entering treatment tank 1. Motor 2 is started, and the output end of motor 2 drives the rotating shaft 3 to rotate, causing the photocatalytic plate 4 on the surface of the rotating shaft 3 to slowly agitate the wastewater to enhance the efficiency of photocatalytic reaction. As the rotating shaft 3 drives the connecting plate 701 fixed at its bottom to rotate, the center of the cam groove 702 deviates from the axis of the rotating shaft 3, causing the guide rod 703, which slides symmetrically in the cam groove 702 on the connecting plate 701, to reciprocate and extend with the rotation of the cam groove 702. When the guide rod 703 approaches the inner wall of treatment tank 1, the first hinge rod 705 hinged at the end of the guide rod 703 pushes the first cleaning brush 706, which is slidably installed on the inner wall of treatment tank 1, to move upward, so that the first cleaning brush 706 cleans the inner wall of treatment tank 1 and the surface of the arc-shaped protrusion 5.

[0042] Meanwhile, as the guide rod 703 reciprocates, the push plates 803 fixed on the surfaces of the two guide rods 703, through reciprocating movement in the same direction, push the connecting ring 802 fixed between the two ends of the movable rod 801 to reciprocate horizontally, causing the second hinge rod 804 hinged on the connecting ring 802 to drive the second cleaning brush 805 slidably mounted on the surface of the rotating shaft 3 to move up and down, so that the second cleaning brush 805 cleans the surface of the photocatalytic plate 4.

[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0044] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An apparatus for removing antibiotics from pharmaceutical wastewater, comprising: A treatment box (1) is provided with an inlet (101) and an outlet (102) at its upper and lower ends, respectively. A motor (2) is fixed on the top of the treatment box (1), and a rotating shaft (3) is inserted into the output end of the motor (2). The bottom of the rotating shaft (3) is rotatably installed at the bottom of the treatment box (1). A photocatalytic plate (4) is symmetrically fixed on the surface of the rotating shaft (3). An ultraviolet high-pressure mercury lamp tube (6) is symmetrically fixed on the top of the treatment box (1). The characteristic is that a first cleaning mechanism (7) for cleaning the inner wall of the treatment box (1) is provided at the lower end of the rotating shaft (3). The first cleaning mechanism (7) includes: a connecting plate (701), which is fixedly installed at the lower end of the rotating shaft (3). A cam groove (702) is provided on the surface of the connecting plate (701), and a guide rod (703) is symmetrically slidably installed inside the cam groove (702). A positioning block (704) is fitted on the surface of the guide rod (703), and the positioning block (704) is fixed at the bottom of the processing box (1). A first hinge rod (705) is hinged at the end of the guide rod (703), and a first cleaning brush (706) is hinged at one end of the first hinge rod (705). The first cleaning brush (706) is movably installed on the inner wall of the processing box (1).

2. The device for removing antibiotics from pharmaceutical wastewater according to claim 1, characterized in that, The processing box (1) consists of a barrel body and a barrel lid, and the barrel lid and the barrel body are detachably installed with several bolts at equal intervals along the circumference.

3. The device for removing antibiotics from pharmaceutical wastewater according to claim 2, characterized in that, A filter plate (9) is fixedly installed on the upper side of the inner wall of the treatment tank (1) near the water inlet (101), and the top of the filter plate (9) overlaps the bottom wall of the tank cover.

4. The device for removing antibiotics from pharmaceutical wastewater according to claim 1, characterized in that, An outer spline sleeve (201) is fixedly installed at the output end of the motor (2), and an inner spline sleeve (301) that cooperates with the outer spline sleeve (201) is fixedly installed on the top of the rotating shaft (3).

5. The device for removing antibiotics from pharmaceutical wastewater according to claim 1, characterized in that, The first cleaning brush (706) is a semi-circular ring, and a slider (7061) is symmetrically fixedly connected to the side of the first cleaning brush (706) near the inner wall of the treatment box (1). The two sides of the inner wall of the treatment box (1) are symmetrically provided with sliding grooves (103) that cooperate with the slider (7061).

6. The device for removing antibiotics from pharmaceutical wastewater according to claim 5, characterized in that, Both sides of the slider (7061) are equipped with balls, and the inner wall of the slide groove (103) is symmetrically provided with arc-shaped guide grooves that cooperate with the balls in the vertical direction.

7. The device for removing antibiotics from pharmaceutical wastewater according to claim 1, characterized in that, A second cleaning mechanism (8) is provided between the surface of the guide rod (703) and the photocatalytic plate (4); The second cleaning mechanism (8) includes: a movable rod (801), which is horizontally movably disposed at the lower end of the rotating shaft (3), a connecting ring (802) is fixedly installed between the two ends of the movable rod (801), a push plate (803) is fixedly connected to the surface of the guide rod (703), one side of the push plate (803) rests on the outer wall of the connecting ring (802), a second hinge rod (804) is symmetrically hinged to the top of the connecting ring (802), and a second cleaning brush (805) is hinged to one end of the second hinge rod (804), the middle part of the second cleaning brush (805) is slidably mounted on the surface of the rotating shaft (3), and the two ends of the second cleaning brush (805) rest on the surface of the adjacent photocatalytic plate (4).

8. The device for removing antibiotics from pharmaceutical wastewater according to claim 1, characterized in that, The inner wall of the processing box (1) is provided with several arc-shaped protrusions (5) installed at equal intervals along the circumference, and the arc-shaped protrusions (5) are made of 316L stainless steel mirror arc plates.

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