A composite oxidation treatment equipment for antibiotic contaminated water body

Abstract

The application discloses an antibiotic-polluted water composite oxidation treatment equipment, which comprises a composite photocatalysis mechanism and a three-dimensional electrochemical catalysis mechanism. The composite photocatalysis mechanism comprises a composite catalysis tank body, and a tank body top cover is arranged at the top of the composite catalysis tank body. A plurality of photocatalysis support columns are arranged in the tank body top cover, the outer side of the photocatalysis support columns is provided with a plurality of first containing grooves, and a plurality of ultraviolet light lamp beads are fixed in the first containing grooves. The three-dimensional electrochemical catalysis mechanism comprises a three-dimensional catalysis containing shell, a collection input shell and a collection output shell are arranged in the three-dimensional catalysis containing shell, and a plurality of catalysis flow pipes are arranged in the collection input shell and the collection output shell and are communicated with each other. The equipment core treatment mechanism is double-catalysis cooperation, has strong oxidation capacity and high degradation efficiency, forms a cooperative treatment link of "photocatalysis pre-oxidation plus electrochemical deep oxidation", and solves the problem that single oxidation technology is not thorough in degrading complex antibiotics.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a composite oxidation treatment device for antibiotic-contaminated water. Background Technology

[0002] Antibiotic contamination of water bodies refers to the detection and residue of antibiotics or their metabolites exceeding natural background levels in aquatic environments (such as rivers, lakes, groundwater, and even oceans). These antibiotics, once introduced into water bodies, pose a potential threat to ecosystems and human health.

[0003] Antibiotic contamination is a typical complex process “from source to end”, with its main sources including human medical and domestic sewage, livestock and aquaculture wastewater, pharmaceutical industrial wastewater, and agricultural runoff. Antibiotic contamination of water bodies is an invisible but extremely harmful environmental problem. It is not only water pollution, but also a significant breeding ground for antibiotic resistance (AMR), listed by the World Health Organization (WHO) as one of the major threats to human health in the 21st century. Solving this problem requires concerted efforts from the entire society and multiple sectors, from source to end. Summary of the Invention

[0004] The purpose of this invention is to provide a composite oxidation treatment device for antibiotic-contaminated water, which solves the problem of incomplete degradation of complex antibiotics by single oxidation technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A composite oxidation treatment device for antibiotic-contaminated water includes a composite photocatalytic mechanism and a three-dimensional electrochemical catalytic mechanism; The composite photocatalytic mechanism includes a composite catalytic tank with its opening facing upwards, and a tank top cover with its opening facing downwards. The top cover of the tank is equipped with multiple vertically extending photocatalytic support columns. The outer side of the photocatalytic support columns has multiple vertically extending first receiving grooves, and multiple ultraviolet lamp beads are fixed in the first receiving grooves. The composite catalytic tank contains multiple vertically extending photocatalyst support columns, and the outer surface of the photocatalyst support columns is coated with a highly active titanium dioxide nanotube array. The opening side of the first receiving tank is sealed with a first airtight protective plate; The bottom of the composite catalytic tank is equipped with multiple ozone aeration mechanisms; The three-dimensional electrochemical catalytic mechanism includes a three-dimensional catalytic containment shell, a collection input shell fixed at the bottom of the three-dimensional catalytic containment shell, a collection output shell fixed at the top of the three-dimensional catalytic containment shell, and multiple vertically extending catalytic flow tubes connecting the collection input shell and the collection output shell. The catalytic flow tube contains a catalytic positive electrode and a catalytic negative electrode, and a three-dimensional electrode packing is filled between the catalytic positive electrode and the catalytic negative electrode. The composite catalytic tank is equipped with a composite catalytic input pipe, which is connected to the collection input shell via a conveying and connecting pipe. The collection output shell is equipped with a three-dimensional catalytic output pipe.

[0006] Preferably, the photocatalytic support column has multiple radial grooves extending radially on its outer side, and a lamp bead connecting plate is slidably connected in the radial grooves. The lamp bead connecting plate has multiple vertically extending second receiving grooves on its outer side, and multiple ultraviolet lamp beads are fixed in the second receiving grooves. A second airtight protective plate is fixed to the outer side of the LED bead connecting plate; A group consists of multiple radial grooves evenly distributed around the circumference of the photocatalytic support column, and multiple groups of radial grooves are arranged along the axial direction of the photocatalytic support column.

[0007] Note: When stronger ultraviolet light is needed, the drive lamp bead connecting plate extends from the radial slide and turns on multiple ultraviolet lamp beads in the second receiving tank, turning on more ultraviolet lamp beads to irradiate antibiotic-contaminated water.

[0008] Preferably, the lamp bead connecting plate is connected to the radial slide groove via an extension drive mechanism. The extension drive mechanism includes an extension drive receiving groove disposed on the inner sidewall of the radial slide groove. The extension direction of the extension drive receiving groove is parallel to the extension direction of the radial slide groove. An extension support slide rail is fixed in the extension drive receiving groove. An extension drive slider is slidably connected on the extension support slide rail. The extension drive slider is fixedly connected to the lamp bead connecting plate.

[0009] Note: The lamp bead connecting plate is driven to extend out of the radial groove by the extension drive mechanism.

[0010] Preferably, the ozone aeration mechanism includes an aeration support tube shell fixed to the bottom of the composite catalytic tank and extending vertically. The aeration support tube shell has multiple aeration pipe connection holes that extend radially through its side wall. Each aeration pipe connection hole is connected to an aeration delivery pipe, and the upper side of the aeration delivery pipe has multiple ozone aeration nozzles. The top of the aeration support tube shell is slidably connected to a main air supply pipe in the vertical direction. The end of the main air supply pipe inside the aeration support tube shell is connected to each aeration delivery pipe through multiple air supply hoses.

[0011] Explanation: Using existing gas delivery pumps, ozone from the ozone storage tank is delivered through pipelines to each main gas delivery pipe. The ozone in the main gas delivery pipe is then delivered through gas delivery hoses to each aeration delivery pipe. Finally, the ozone in the aeration delivery pipe is sprayed out from multiple ozone aeration nozzles into the antibiotic-contaminated water body. The ozone forms dense microbubbles in the antibiotic-contaminated water body. These ozone microbubbles circulate from bottom to top in the antibiotic-contaminated water body and come into full contact with the antibiotic-contaminated water body.

[0012] Preferably, a delivery pipe support seat is fixed on the outer wall of the aeration support pipe shell at the aeration pipe connection hole, and a delivery pipe support shaft is rotatably connected to the delivery pipe support seat. The delivery pipe support shaft extends horizontally and is perpendicular to the through direction of the aeration pipe connection hole, and the aeration delivery pipe is fixedly connected to the delivery pipe support shaft.

[0013] Explanation: During ozone aeration, the main air supply pipe is raised and lowered. The main air supply pipe, through the air supply hose, can drive each aeration delivery pipe to rotate around the delivery pipe support shaft, thereby adjusting the inclination angle of each aeration delivery pipe. Simply put, this adjusts the degree of expansion of each aeration delivery pipe relative to the aeration support pipe shell.

[0014] Preferably, an aeration regulating fixed cylinder with an upward opening is fixed to the top of the aeration support pipe shell, and an aeration regulating sliding cylinder with a downward opening is slidably connected to the aeration regulating fixed cylinder. The aeration regulating sliding cylinder is fixedly connected to one end of the main air supply pipe outside the aeration support pipe shell. The aeration regulating fixed cylinder is equipped with an aeration regulating drive rod for driving the aeration regulating sliding cylinder to move up and down; The air delivery hose and the aeration delivery pipe are fixedly connected at one end inside the aeration support pipe shell.

[0015] Explanation: The extension or retraction of the inner rod of the aeration adjustment drive rod can drive the aeration adjustment sliding cylinder together with the main air supply pipe to move up and down, thereby adjusting the height of the main air supply pipe.

[0016] Preferably, multiple downward-facing lifting support cylinders are fixed on the top cover of the tank, the lower end of the lifting support cylinder is connected to the inside of the top cover of the tank, and multiple photocatalytic support columns are slidably connected in each lifting support cylinder. The lifting support cylinder is equipped with a photocatalytic lifting drive rod for driving the photocatalytic support column to move up and down; The bottom of the photocatalytic support column has an auxiliary connection hole with the opening facing downward. A photocatalytic auxiliary support column is slidably connected in the auxiliary connection hole. The outer surface of the photocatalytic auxiliary support column has multiple vertically extending third receiving grooves. Multiple ultraviolet lamp beads are fixed in the third receiving grooves. An auxiliary lifting drive rod is provided in the auxiliary connection hole for driving the photocatalytic auxiliary support column to move up and down.

[0017] Instructions: When weaker ultraviolet light is needed, the inner rod of the photocatalytic lifting drive rod retracts, causing the photocatalytic support column to move upward and retract into the lifting support cylinder. At the same time, the inner rod of the auxiliary lifting drive rod extends, causing the auxiliary photocatalytic support column to move downward and extend out of the auxiliary connection hole. At this time, the auxiliary photocatalytic support column is immersed in the antibiotic-contaminated water. Multiple ultraviolet lamps in the third containment tank are turned on, and only the multiple ultraviolet lamps on the auxiliary photocatalytic support column are used to irradiate the antibiotic-contaminated water.

[0018] Preferably, the upper and lower ends of the catalytic flow tube are closed structures, and a catalytic support shaft coaxial with it is fixed inside the catalytic flow tube, forming a catalytic flow channel between the inner sidewall of the catalytic flow tube and the outer sidewall of the catalytic support shaft; Both the positive and negative catalytic electrodes are tubular structures. The positive catalytic electrode is coaxially fixed on the inner wall of the catalytic flow tube, and the negative catalytic electrode is coaxially fixed on the outer side of the catalytic support shaft. The top of the catalytic flow tube has multiple catalytic output holes that connect the catalytic flow channels to the collection output shell; The bottom of the catalytic flow tube is fixed with multiple catalytic input short tubes that are connected to the catalytic flow channel, and the lower end of the catalytic input short tubes extends into the interior of the collection input shell; The catalytic input short pipe has a catalytic input control valve.

[0019] Note: The opening and closing of each catalytic input short pipe can be controlled individually. According to actual needs, the number of catalytic input short pipes at the lower end of each catalytic flow pipe can be controlled, thereby adjusting the influent flow rate and velocity of the catalytic flow channel.

[0020] Preferably, an aeration and stirring conveying pipe extending circumferentially around the catalytic flow tube is fixed at the bottom of the catalytic flow channel, and multiple aeration and stirring nozzles are provided on the upper side of the aeration and stirring conveying pipe.

[0021] Explanation: Dry air is introduced into the aeration and mixing delivery pipe. The dry air is sprayed from multiple aeration and mixing nozzles, forming air microbubbles in the antibiotic-contaminated water and flowing from bottom to top. This agitates the antibiotic-contaminated water, keeps the three-dimensional electrode packing in a fluidized state, and prevents the three-dimensional electrode packing from caking.

[0022] Compared with the prior art, the beneficial effects of the present invention are reflected in the following aspects: 1. The present invention has a reasonable structural design and the core processing mechanism is dual catalytic synergy, which has strong oxidation ability and high degradation efficiency. It connects the composite photocatalytic mechanism and the three-dimensional electrochemical catalytic mechanism in series to form a synergistic processing link of "photocatalytic pre-oxidation + electrochemical deep oxidation", which solves the problem of incomplete degradation of complex antibiotics by single oxidation technology. 2. This invention is easy to operate. The dense arrangement of the photocatalytic support column and the ultraviolet light beads forms a uniform ultraviolet light irradiation field, which activates the photocatalytic active substances, rapidly destroys the molecular structure of antibiotics, and reduces the load of subsequent electrochemical treatment. 3. In the process of ozone aeration, the present invention adjusts the height of the main gas supply pipe. The main gas supply pipe can drive each aeration delivery pipe to rotate around the support shaft of the delivery pipe through the gas delivery hose, adjust the inclination angle of each aeration delivery pipe, adjust the degree of expansion of each aeration delivery pipe relative to the aeration support pipe shell, and thus adjust the aeration range of ozone microbubbles in the vertical direction. 4. This invention can control the opening and closing of each catalytic input short tube individually. According to actual needs, it can control the number of catalytic input short tubes opened at the lower end of each catalytic flow tube, thereby adjusting the influent flow rate and velocity of the catalytic flow channel. 5. In the three-dimensional electrochemical catalytic oxidation process, the present invention introduces dry air into the aeration and stirring conveying pipe. The dry air is sprayed from multiple aeration and stirring nozzles to form air microbubbles in the antibiotic-contaminated water and flows from bottom to top, which plays a stirring role in the antibiotic-contaminated water, keeping the three-dimensional electrode packing in a fluidized state and preventing the three-dimensional electrode packing from caking. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the composite photocatalytic mechanism of the present invention; Figure 2 yes Figure 1 Top view; Figure 3 This is a schematic diagram of the photocatalytic support column of the present invention; Figure 4 This is a top view of the photocatalytic support column of the present invention; Figure 5 This is a top view of the LED bead connecting plate of the present invention; Figure 6 This is a schematic diagram of the ozone aeration mechanism of the present invention; Figure 7 yes Figure 6 Top view; Figure 8 This is a schematic diagram of the three-dimensional electrochemical catalytic mechanism of the present invention; Figure 9 This is a schematic diagram of the catalytic flow tube of the present invention; Figure 10 This is a top view of the catalytic flow tube of the present invention.

[0024] In the diagram, 10-composite photocatalytic mechanism, 101-composite catalytic input pipe, 102-transport connecting pipe, 11-composite catalytic tank, 12-tank top cover, 13-photocatalytic support column, 130-photocatalyst loading column, 131-first receiving tank, 1310-first sealed protective plate, 132-radial groove, 133-lamp bead connecting plate, 134-second receiving tank, 1340-second sealed protective plate, 14-ultraviolet lamp bead, 15-ozone aeration mechanism, 151-aeration support tube shell, 1510-aeration pipe connection hole, 152-aeration delivery pipe, 1520-ozone aeration nozzle, 153-main gas delivery pipe, 1530-gas delivery hose, 154-delivery pipe support seat, 1540-delivery pipe support shaft, 155-aeration adjustment fixing cylinder, 156-aeration adjustment sliding cylinder, 157-aeration adjustment drive rod. 16-Lifting support cylinder, 161-Photocatalytic lifting drive rod, 17-Photocatalytic auxiliary support column, 170-Auxiliary connection hole, 171-Third receiving tank, 172-Auxiliary lifting drive rod, 20-Three-dimensional electrochemical catalytic mechanism, 201-Three-dimensional catalytic output pipe, 21-Three-dimensional catalytic receiving shell, 221-Comprehensive input shell, 222-Comprehensive output shell, 23-Catalytic flow pipe, 230-Catalytic flow channel, 2301-Catalytic output hole, 2302-Catalytic input short pipe, 2303-Catalytic input control valve, 231-Catalytic support shaft, 241-Catalytic positive electrode, 242-Catalytic negative electrode, 240-Three-dimensional electrode packing, 25-Aeration stirring conveying pipe, 251-Aeration stirring nozzle, 31-Extended drive mechanism, 311-Extended drive receiving tank, 312-Extended support slide rail, 313-Extended drive slider. Detailed Implementation

[0025] The following is combined Figures 1-10 The present invention will be described in detail below. For ease of description, the orientations mentioned below are defined as follows: The directions of up, down, left, right, front, and back mentioned below are consistent with the directions of up, down, left, right, front, and back in the projection relationship of the respective main view or structural schematic diagram.

[0026] Example 1: A composite oxidation treatment device for antibiotic-contaminated water, such as Figure 1 , Figure 8 As shown, it includes a composite photocatalytic mechanism 10 and a three-dimensional electrochemical catalytic mechanism 20; like Figure 1 As shown, the composite photocatalytic mechanism 10 includes a composite catalytic tank 11 with the opening facing upwards, and a tank top cover 12 with the opening facing downwards is provided on the top of the composite catalytic tank 11. The top cover 12 of the tank is equipped with multiple vertically extending photocatalytic support columns 13, such as... Figure 4As shown, the photocatalytic support column 13 has multiple vertically extending first receiving grooves 131 on its outer side, and multiple ultraviolet light beads 14 are fixed in the first receiving grooves 131. like Figure 2 As shown, the composite catalytic tank 11 is provided with multiple vertically extending photocatalyst support columns 130, and the outer surface of the photocatalyst support columns 130 is loaded with a highly active titanium dioxide nanotube array coating. like Figure 4 As shown, a first sealed protective plate 1310 is fixedly sealed on the open side of the first receiving groove 131; like Figure 1 As shown, the bottom of the composite catalytic tank 11 is equipped with multiple ozone aeration mechanisms 15; like Figure 8 As shown, the three-dimensional electrochemical catalytic mechanism 20 includes a three-dimensional catalytic containment shell 21, a collection input shell 221 fixed at the bottom inside the three-dimensional catalytic containment shell 21, a collection output shell 222 fixed at the top inside the three-dimensional catalytic containment shell 21, and multiple vertically extending catalytic flow pipes 23 are connected between the collection input shell 221 and the collection output shell 222. like Figure 9 As shown, a catalytic positive electrode 241 and a catalytic negative electrode 242 are provided in the catalytic flow tube 23, and a three-dimensional electrode filler 240 is filled between the catalytic positive electrode 241 and the catalytic negative electrode 242. like Figure 1 As shown, the composite catalytic converter 11 is equipped with a composite catalytic input pipe 101, and the composite catalytic converter 11 is connected to the collection input shell 221 through a conveying connecting pipe 102, as shown. Figure 8 As shown, a three-dimensional catalytic output tube 201 is provided on the output housing 222; The composite catalytic input pipe 101 is located near the bottom of the composite catalytic tank 11, and the delivery connecting pipe 102 is located near the top of the composite catalytic tank 11.

[0027] Example 2: Based on Example 1, such as Figure 4 As shown, the photocatalytic support column 13 has multiple radial grooves 132 extending radially on its outer side. A lamp bead connecting plate 133 is slidably connected in the radial grooves 132. The lamp bead connecting plate 133 has multiple vertically extending second receiving grooves 134 on its outer side. Multiple ultraviolet lamp beads 14 are fixed in the second receiving grooves 134. A second airtight protective plate 1340 is fixed to the outer side of the LED bead connecting plate 133 in a sealed enclosure. A group of radial grooves 132 are evenly distributed around the circumference of the photocatalytic support column 13, and multiple groups of radial grooves 132 are arranged along the axial direction of the photocatalytic support column 13.

[0028] like Figure 4As shown, the LED bead connecting plate 133 is connected to the radial slide groove 132 through the extension drive mechanism 31. The extension drive mechanism 31 includes an extension drive receiving groove 311 provided on the inner side wall of the radial slide groove 132. The extension direction of the extension drive receiving groove 311 is parallel to the extension direction of the radial slide groove 132. An extension support slide rail 312 is fixed in the extension drive receiving groove 311. An extension drive slider 313 is slidably connected on the extension support slide rail 312. The extension drive slider 313 is fixedly connected to the LED bead connecting plate 133. The extended drive slider 313 is driven by a servo motor of the prior art to move along the extended support slide rail 312 via gear and rack transmission.

[0029] Example 3: Based on Example 2, such as Figure 6 As shown, the ozone aeration mechanism 15 includes an aeration support tube shell 151 that is fixed to the bottom of the composite catalytic tank 11 and extends vertically. The side wall of the aeration support tube shell 151 has a plurality of aeration pipe connection holes 1510 that extend radially through it. Each aeration pipe connection hole 1510 is connected to an aeration delivery pipe 152. The upper side of the aeration delivery pipe 152 has a plurality of ozone aeration nozzles 1520. The top of the aeration support tube shell 151 is slidably connected to the main air supply pipe 153 in the vertical direction. One end of the main air supply pipe 153 inside the aeration support tube shell 151 is connected to each aeration delivery pipe 152 through multiple air supply hoses 1530.

[0030] like Figure 7 As shown, a conveying pipe support seat 154 is fixed on the outer wall of the aeration support pipe shell 151 at the aeration pipe connection hole 1510. A conveying pipe support shaft 1540 is rotatably connected to the conveying pipe support seat 154. The conveying pipe support shaft 1540 extends horizontally and is perpendicular to the through direction of the aeration pipe connection hole 1510. The aeration conveying pipe 152 is fixedly connected to the conveying pipe support shaft 1540.

[0031] like Figure 6 As shown, an aeration adjustment fixing cylinder 155 with an upward opening is fixed to the top of the aeration support tube shell 151. An aeration adjustment sliding cylinder 156 with a downward opening is slidably connected to the aeration adjustment fixing cylinder 155. The aeration adjustment sliding cylinder 156 is fixedly connected to one end of the main air supply pipe 153 outside the aeration support tube shell 151. The aeration regulating fixed cylinder 155 is provided with an aeration regulating drive rod 157 for driving the aeration regulating sliding cylinder 156 to move up and down. The aeration regulating drive rod 157 is an existing electric control telescopic rod driven by a servo motor. The outer rod end of the aeration regulating drive rod 157 is fixedly connected to the bottom of the aeration regulating fixed cylinder 155, and the inner rod end of the aeration regulating drive rod 157 is fixedly connected to the top of the aeration regulating sliding cylinder 156. The air supply hose 1530 and the aeration delivery pipe 152 are fixedly connected at one end inside the aeration support pipe shell 151.

[0032] Example 4: Based on Example 3, such as Figure 1 As shown, multiple lifting support cylinders 16 with downward openings are fixed on the top cover 12 of the tank. The lower end of the lifting support cylinder 16 is connected to the inner side of the top cover 12 of the tank. Multiple photocatalytic support columns 13 are slidably connected in each lifting support cylinder 16. The lifting support cylinder 16 is provided with a photocatalytic lifting drive rod 161 for driving the photocatalytic support column 13 to move up and down. The photocatalytic lifting drive rod 161 is an existing electronically controlled telescopic rod driven by a servo motor. The outer rod end of the photocatalytic lifting drive rod 161 is fixedly connected to the top of the inner part of the lifting support cylinder 16, and the inner rod end of the photocatalytic lifting drive rod 161 is fixedly connected to the upper end of the photocatalytic support column 13. like Figure 3 As shown, the bottom of the photocatalytic support column 13 has an auxiliary connection hole 170 with the opening facing downward. A photocatalytic auxiliary support column 17 is slidably connected in the auxiliary connection hole 170. The outer surface of the photocatalytic auxiliary support column 17 has multiple vertically extending third receiving grooves 171. Multiple ultraviolet light beads 14 are fixed in the third receiving grooves 171. An auxiliary lifting drive rod 172 is provided in the auxiliary connection hole 170 for driving the photocatalytic auxiliary support column 17 to move up and down. The auxiliary lifting drive rod 172 is an existing electrically controlled telescopic rod driven by a servo motor. The outer end of the auxiliary lifting drive rod 172 is fixedly connected to the top of the auxiliary connection hole 170, and the inner end of the auxiliary lifting drive rod 172 is fixedly connected to the upper end of the photocatalytic auxiliary support column 17.

[0033] Example 5: Based on Example 4, such as Figure 9 As shown, the upper and lower ends of the catalytic flow tube 23 are closed structures. A catalytic support shaft 231 coaxial with it is fixed inside the catalytic flow tube 23. A catalytic flow channel 230 is formed between the inner wall of the catalytic flow tube 23 and the outer side of the catalytic support shaft 231. Both the catalytic positive electrode 241 and the catalytic negative electrode 242 are tubular structures. The catalytic positive electrode 241 is coaxially fixed on the inner wall of the catalytic flow tube 23, and the catalytic negative electrode 242 is coaxially fixed on the outer side of the catalytic support shaft 231. The top end of the catalytic flow tube 23 has multiple catalytic output holes 2301 that connect the catalytic flow channels 230 and the collection output shell 222; The bottom of the catalytic flow tube 23 is fixed with a plurality of catalytic input short tubes 2302 that are connected to the catalytic flow channel 230, and the lower end of the catalytic input short tubes 2302 extends into the interior of the collection input shell 221; The catalytic input short pipe 2302 has a catalytic input control valve 2303.

[0034] Example 6: Based on Example 5, such as Figure 10 As shown, an aeration and stirring conveying pipe 25 extending circumferentially around the catalytic flow channel 230 is fixed at the bottom of the channel. The aeration and stirring conveying pipe 25 has multiple aeration and stirring nozzles 251 on its upper side.

[0035] In practical application, the present invention utilizes a delivery pump of existing technology to input the antibiotic-contaminated water to be treated into the composite catalytic tank 11 through the composite catalytic input pipe 101. The antibiotic-contaminated water undergoes a combined oxidation process of ozone catalytic oxidation and ultraviolet photocatalytic oxidation within the composite catalytic tank 11. Antibiotic-contaminated water flows from bottom to top in composite catalytic tank 11. Ozone microbubbles are introduced into the antibiotic-contaminated water using ozone aeration device 15. Ozone catalytic oxidation of antibiotic-contaminated water is carried out by ozone to destroy the main molecular structure of antibiotics. Using a gas delivery pump based on existing technology, ozone in the ozone storage tank is delivered through pipelines to each main gas delivery pipe 153. The ozone in the main gas delivery pipe 153 is then delivered through gas delivery hoses 1530 to each aeration delivery pipe 152. Finally, the ozone in the aeration delivery pipe 152 is sprayed out from multiple ozone aeration nozzles 1520 into the antibiotic-contaminated water body. The ozone forms dense microbubbles in the antibiotic-contaminated water body. These ozone microbubbles flow from bottom to top in the antibiotic-contaminated water body and come into full contact with the antibiotic-contaminated water body. During ozone aeration, the main gas supply pipe 153 is raised and lowered. The main gas supply pipe 153, through the gas supply hose 1530, can drive each aeration delivery pipe 152 to rotate around the delivery pipe support shaft 1540, adjusting the inclination angle of each aeration delivery pipe 152. Simply put, this adjusts the degree of expansion of each aeration delivery pipe 152 relative to the aeration support pipe shell 151. When the axis of the aeration delivery pipe 152 is perpendicular to the axis of the aeration support pipe shell 151, the degree of expansion of the aeration delivery pipe 152 relative to the aeration support pipe shell 151 is the largest. As the end of the aeration delivery pipe 152 away from the main gas supply pipe 153 gradually droops closer to the aeration support pipe shell 151, the degree of expansion of the aeration delivery pipe 152 relative to the aeration support pipe shell 151 is smaller, thereby adjusting the aeration range of ozone microbubbles in the vertical direction. The extension or retraction of the inner rod of the aeration adjustment drive rod 157 can drive the aeration adjustment sliding cylinder 156 together with the main air supply pipe 153 to move up and down, thereby adjusting the height of the main air supply pipe 153. When multiple ultraviolet light beads 14 in the first receiving tank 131 are turned on, under the irradiation of ultraviolet light, the highly active titanium dioxide nanotube array coating loaded on the outer surface of the photocatalyst support column 130 will be excited to generate electron-hole pairs, which will then catalyze ozone and dissolved oxygen in water to generate a large amount of ·OH, which will carry out ultraviolet photocatalytic oxidation of antibiotic-polluted water and destroy the main molecular structure of antibiotics. Based on the parameters of the actual antibiotic-contaminated water, when stronger ultraviolet light is needed, the drive lamp bead connecting plate 133 extends out from the radial slide groove 132 and turns on multiple ultraviolet lamp beads 14 in the second receiving groove 134, turning on more ultraviolet lamp beads 14 to irradiate the antibiotic-contaminated water. The lamp bead connecting plate 133 is driven to extend from the radial slide groove 132 by the extension drive mechanism 31. The extension drive slider 313 is driven by the existing servo motor to move along the extension support slide rail 312 through gear and rack transmission. The extension drive slider 313 moves toward the opening of the radial slide groove 132, thereby driving the lamp bead connecting plate 133 to extend from the radial slide groove 132. When weaker ultraviolet light is needed, the reverse drive lamp bead connecting plate 133 retracts the radial slide groove 132, the inner rod of the photocatalytic lifting drive rod 161 retracts and drives the photocatalytic support column 13 to move upward, so that the photocatalytic support column 13 retracts into the lifting support cylinder 16. At the same time, the inner rod of the auxiliary lifting drive rod 172 extends and drives the photocatalytic auxiliary support column 17 to move downward, so that the photocatalytic auxiliary support column 17 extends out from the auxiliary connection hole 170. At this time, the photocatalytic auxiliary support column 17 is immersed in the antibiotic-contaminated water. The multiple ultraviolet lamp beads 14 in the third receiving tank 171 are turned on, and only the multiple ultraviolet lamp beads 14 on the photocatalytic auxiliary support column 17 are used to irradiate the antibiotic-contaminated water. The top cover 12 of the tank is equipped with an exhaust pipe that is connected to the inside of the tank. The ozone after use will be discharged through the exhaust pipe and can be rendered harmless using existing exhaust gas treatment equipment. After undergoing a combined oxidation treatment involving ozone catalytic oxidation and ultraviolet photocatalytic oxidation, the antibiotic-contaminated water is discharged through the conveying and connecting pipe 102 and enters the collection and input shell 221. The three-dimensional electrochemical catalytic mechanism 20 is used to perform three-dimensional electrochemical catalytic oxidation on the antibiotic-contaminated water, and to deeply mineralize the intermediate products generated by the combined oxidation treatment, thereby treating more difficult-to-degrade organic matter. Antibiotic-contaminated water entering the main input shell 221 flows through multiple catalytic flow pipes 23 from bottom to top and finally converges into the main output shell 222. Each catalytic input short pipe 2302 is equipped with a catalytic input control valve 2303, which can individually control the opening and closing of each catalytic input short pipe 2302. According to actual needs, the number of catalytic input short pipes 2302 at the lower end of each catalytic flow pipe 23 can be controlled, thereby adjusting the influent flow rate and velocity of the catalytic flow channel 230. Each catalyst flow tube 23's lower end catalyst input short tube 2302 can also be opened or closed synchronously, thereby controlling the actual number of working catalyst flow tubes 23. The antibiotic-contaminated water in the input shell 221 enters the catalytic flow channel 230 through the catalytic input short pipe 2302 and flows from bottom to top. The catalytic positive electrode 241 and catalytic negative electrode 242 are electrically connected to the positive and negative electrodes of the existing DC power supply, respectively. The three-dimensional electrode packing 240 is composed of activated carbon particles loaded with a RuO2-TiO2 titanium-based coating. Under the action of the electric field, the particles of the three-dimensional electrode packing 240 become tiny "bipolar electrodes". The antibiotic-contaminated water is oxidized using these tiny "bipolar electrodes", which greatly increases the reaction area and mass transfer efficiency. Dry air is introduced into the aeration and mixing conveying pipe 25 using a gas delivery pump with existing technology. The dry air is sprayed out from multiple aeration and mixing nozzles 251 to form air microbubbles in the antibiotic-contaminated water and flows from bottom to top, which plays a stirring role in the antibiotic-contaminated water, keeping the three-dimensional electrode packing 240 in a fluidized state and preventing the three-dimensional electrode packing 240 from caking. The antibiotic-contaminated water after three-dimensional electrochemical catalytic oxidation flows into the collection and output shell 222 through the catalytic output hole 2301, and the water in the collection and output shell 222 is finally discharged from the three-dimensional catalytic output pipe 201.

Claims

1. A composite oxidation treatment device for antibiotic-contaminated water, characterized in that, It includes a composite photocatalytic mechanism (10) and a three-dimensional electrochemical catalytic mechanism (20). The composite photocatalytic mechanism (10) includes a composite catalytic tank (11) with the opening facing upwards, and a tank top cover (12) with the opening facing downwards is provided on the top of the composite catalytic tank (11). The top cover (12) of the tank is provided with multiple vertically extending photocatalytic support columns (13), and the outside of the photocatalytic support columns (13) has multiple vertically extending first receiving grooves (131), and multiple ultraviolet lamp beads (14) are fixed in the first receiving grooves (131). The composite catalytic tank (11) is provided with multiple vertically extending photocatalyst support columns (130), and the outer surface of the photocatalyst support columns (130) is loaded with a highly active titanium dioxide nanotube array coating. The first receiving groove (131) is sealed and fixed with a first airtight protective plate (1310) on the opening side. The photocatalytic support column (13) has multiple radial grooves (132) extending radially on its outer side. A lamp bead connecting plate (133) is slidably connected in the radial grooves (132). The lamp bead connecting plate (133) has multiple vertically extending second receiving grooves (134) on its outer side. Multiple ultraviolet lamp beads (14) are fixed in the second receiving grooves (134). The outer side of the lamp bead connecting plate (133) is sealed and fixed with a second airtight protective plate (1340). The radial grooves (132) are evenly distributed around the circumference of the photocatalytic support column (13) in multiple groups, and the radial grooves (132) are arranged in multiple groups along the axial direction of the photocatalytic support column (13). The composite catalytic tank (11) is provided with multiple ozone aeration mechanisms (15) at its bottom. Each ozone aeration mechanism (15) includes an aeration support tube shell (151) that is fixed to the bottom of the composite catalytic tank (11) and extends vertically. The side wall of the aeration support tube shell (151) has multiple aeration pipe connection holes (1510) that extend radially through it. Each aeration pipe connection hole (1510) is connected to an aeration delivery pipe (152). The upper side of the aeration delivery pipe (152) has multiple ozone aeration nozzles (1520). The top of the aeration support tube shell (151) is slidably connected to a main air supply pipe (153) in the vertical direction. One end of the main air supply pipe (153) inside the aeration support tube shell (151) is connected to each aeration delivery pipe (152) through multiple air supply hoses (1530). The three-dimensional electrochemical catalytic mechanism (20) includes a three-dimensional catalytic containment shell (21), a collection input shell (221) is fixed at the bottom of the three-dimensional catalytic containment shell (21), a collection output shell (222) is fixed at the top of the three-dimensional catalytic containment shell (21), and multiple vertically extending catalytic flow tubes (23) are connected between the collection input shell (221) and the collection output shell (222). The catalytic flow tube (23) is provided with a catalytic positive electrode (241) and a catalytic negative electrode (242), and a three-dimensional electrode filler (240) is filled between the catalytic positive electrode (241) and the catalytic negative electrode (242). The composite catalytic tank (11) is provided with a composite catalytic input pipe (101). The composite catalytic tank (11) is connected to the summing input shell (221) through a conveying connecting pipe (102). The summing output shell (222) is provided with a three-dimensional catalytic output pipe (201).

2. The composite oxidation treatment equipment for antibiotic-contaminated water according to claim 1, characterized in that, The lamp bead connecting plate (133) is connected to the radial slide groove (132) through an extension drive mechanism (31). The extension drive mechanism (31) includes an extension drive receiving groove (311) disposed on the inner side wall of the radial slide groove (132). The extension direction of the extension drive receiving groove (311) is parallel to the extension direction of the radial slide groove (132). An extension support slide rail (312) is fixed in the extension drive receiving groove (311). An extension drive slider (313) is slidably connected on the extension support slide rail (312). The extension drive slider (313) is fixedly connected to the lamp bead connecting plate (133).

3. The composite oxidation treatment equipment for antibiotic-contaminated water according to claim 1, characterized in that, The outer wall of the aeration support tube shell (151) is fixed with a delivery tube support seat (154) at the aeration tube connection hole (1510). A delivery tube support shaft (1540) is rotatably connected to the delivery tube support seat (154). The delivery tube support shaft (1540) extends horizontally and is perpendicular to the through direction of the aeration tube connection hole (1510). The aeration delivery tube (152) is fixedly connected to the delivery tube support shaft (1540).

4. The composite oxidation treatment equipment for antibiotic-contaminated water according to claim 1, characterized in that, The top of the aeration support tube shell (151) is fixed with an aeration adjustment fixing cylinder (155) facing upward. An aeration adjustment sliding cylinder (156) facing downward is slidably connected to the aeration adjustment fixing cylinder (155). The aeration adjustment sliding cylinder (156) is fixedly connected to one end of the main air supply pipe (153) outside the aeration support tube shell (151). The aeration regulating fixed cylinder (155) is provided with an aeration regulating drive rod (157) for driving the aeration regulating sliding cylinder (156) to move up and down. The air delivery hose (1530) is fixedly connected to one end of the aeration delivery pipe (152) inside the aeration support pipe shell (151).

5. The composite oxidation treatment equipment for antibiotic-contaminated water according to claim 1, characterized in that, Multiple lifting support cylinders (16) with downward openings are fixed on the top cover (12) of the tank body. The lower end of the lifting support cylinder (16) is connected to the inner side of the top cover (12) of the tank body. Multiple photocatalytic support columns (13) are slidably connected in each lifting support cylinder (16) in a corresponding manner. The lifting support cylinder (16) is provided with a photocatalytic lifting drive rod (161) for driving the photocatalytic support column (13) to move up and down. The bottom of the photocatalytic support column (13) has an auxiliary connection hole (170) with the opening facing downward. A photocatalytic auxiliary support column (17) is slidably connected in the auxiliary connection hole (170). The outer surface of the photocatalytic auxiliary support column (17) has multiple vertically extending third receiving grooves (171). Multiple ultraviolet light beads (14) are fixed in the third receiving grooves (171). The auxiliary connection hole (170) is provided with an auxiliary lifting drive rod (172) for driving the photocatalytic auxiliary support column (17) to move up and down.

6. The composite oxidation treatment equipment for antibiotic-contaminated water according to claim 1, characterized in that, The catalytic flow tube (23) has a closed structure at both ends. A catalytic support shaft (231) coaxial with it is fixed inside the catalytic flow tube (23). A catalytic flow channel (230) is formed between the inner wall of the catalytic flow tube (23) and the outer side of the catalytic support shaft (231). Both the catalytic positive electrode (241) and the catalytic negative electrode (242) are tubular structures. The catalytic positive electrode (241) is coaxially fixed on the inner wall of the catalytic flow tube (23), and the catalytic negative electrode (242) is coaxially fixed on the outer side of the catalytic support shaft (231). The top end of the catalytic flow tube (23) has a plurality of catalytic output holes (2301) that connect the catalytic flow channel (230) and the aggregate output shell (222). The bottom of the catalytic flow tube (23) is fixed with a plurality of catalytic input short tubes (2302) that are connected to the catalytic flow channel (230), and the lower end of the catalytic input short tubes (2302) extends into the interior of the collection input shell (221); The catalytic input short pipe (2302) has a catalytic input control valve (2303).

7. The composite oxidation treatment equipment for antibiotic-contaminated water according to claim 6, characterized in that, The bottom of the catalytic flow channel (230) is fixed with an aeration and stirring conveying pipe (25) extending circumferentially around the catalytic flow pipe (23), and the upper side of the aeration and stirring conveying pipe (25) has a plurality of aeration and stirring nozzles (251).

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