Ozone-light catalysis based high-concentration industrial wastewater treatment equipment and process

Abstract

This invention relates to a high-concentration industrial wastewater treatment device based on ozone-photocatalysis, comprising a main tank, which includes a base, a tank body, a top cover, an air inlet, an air outlet, a liquid inlet, a liquid outlet, an observation port, a cleaning port, a sludge collection zone, a reaction zone, and a return gas zone. The tank body is fixedly mounted on the base, and the top cover is fixedly mounted on the tank body. The top cover has an air inlet and an air outlet. The bottom of the tank body has a liquid inlet, and the side of the tank body has a liquid outlet, an observation port, and a cleaning port. The cleaning port is located near the bottom of the tank body, and the liquid outlet and observation port are located near the top of the tank body. The interior of the tank body is divided into a sludge collection zone, a reaction zone, and a return gas zone from bottom to top. This invention can effectively improve ozone utilization, reduce ozone production energy consumption costs, reduce tail gas recovery and treatment costs, facilitate the treatment of adhering substances inside the wastewater treatment equipment, facilitate catalyst replacement, and improve the overall automation level of the wastewater treatment equipment.

Description

Technical Field

[0001] This invention relates to the field of industrial wastewater treatment technology, and in particular to a high-concentration industrial wastewater treatment device and process based on ozone-photocatalysis. Background Technology

[0002] High-concentration wastewater mainly originates from various industrial processes, including papermaking, leather processing, food processing, pharmaceuticals, and pesticide production. These industries generate large amounts of organic matter, phenolic compounds, alcoholic substances, sugars, oils, and fats during their production processes, which are the primary sources of this wastewater.

[0003] High-concentration wastewater is unstable and complex in composition, including organic matter and heavy metals. Its pH, salinity, and heavy metal content vary significantly, making it difficult to treat. It is also highly toxic, containing harmful substances such as cyanide and phenols, which can cause teratogenic or lethal effects on microorganisms. High-concentration wastewater has a wide range of sources and distinct characteristics, making its treatment complex. In practical applications, it is necessary to select an appropriate treatment scheme based on factors such as the nature of the wastewater, treatment requirements, and economic conditions to achieve the desired purification effect.

[0004] In treating high-concentration industrial wastewater, high-efficiency ozone catalyst technology is a commonly used method. Through enrichment, catalytic activation, and oxidative degradation, it significantly improves the rate and efficiency of residual organic matter degradation in wastewater. It combines the strong oxidizing properties of ozone with the enrichment and catalytic activity characteristics of catalysts, more effectively solving a series of problems such as low ozone treatment efficiency, low ozone utilization, and high operating costs. Ozone oxidation technology, in particular, can improve ozone utilization by adding ozone catalysts, while simultaneously increasing COD removal rates to 30-50%. The advantages of using ozone catalysts for industrial wastewater treatment include: High efficiency: Ozone catalytic efficiency is more than 4 times higher than without a catalyst. Revolutionary: Long lifespan, maintaining activity for a long time; activity can be restored by rinsing. High utilization: Ozone is fully utilized with minimal residue. Economic efficiency: Saves land and causes no secondary pollution.

[0005] Ozone catalytic oxidation technology can convert ammonia nitrogen in wastewater into harmless substances, reducing the negative impact of wastewater on the environment and ecosystem. The principle of ozone catalytic oxidation technology for treating industrial park wastewater is to utilize ozone to oxidize the wastewater, degrading organic matter into harmless water and carbon dioxide. In practice, it involves steps such as oxygen supply, ozone generation, oxidation reaction, and gas-liquid separation. First, a sufficient amount of oxygen is supplied to the reactor through an oxygen supply system. Then, ozone gas is generated using an ozone generator. Next, the ozone gas is injected into the high-ammonia nitrogen wastewater, where the oxidation reaction takes place in the reactor. Finally, a gas-liquid separation device separates the gas and liquid in the wastewater, yielding treated clean water.

[0006] Photocatalysts, also known as photocatalysts, are a general term for semiconductor materials with photocatalytic functions, represented by titanium dioxide (TiO2). Photocatalytic technology is an environmental purification technology with broad application prospects because it does not consume Earth's energy or use harmful chemicals, but only utilizes the light energy of sunlight to remove and purify environmental pollutants at low concentrations. It can also be used as an antibacterial and antifungal agent. In addition to its antibacterial, deodorizing, and antifouling functions, photocatalysts can also be applied to water purification. Using titanium dioxide photocatalytic technology to degrade organic pollutants in water is particularly effective when the concentration of organic pollutants is high or difficult to treat using other methods.

[0007] For example, application number 202221931393.4 discloses a high-concentration industrial wastewater treatment device, including a shell, a feed box, a mounting box, a bracket, a connecting block, a filter box, and a control panel. The feed box is fixedly connected to the top left side of the shell, the mounting box is fixedly connected to the top middle of the feed box, the bracket is fixedly connected to the top right side of the shell, the connecting block is located on the upper side of the bracket, the filter box is fixedly connected to the top right side of the bracket, and the control panel is fixedly connected to the upper side of the right side wall of the shell. This high-concentration industrial wastewater treatment device has a reasonable structural design, which prevents the internal connecting pipes from becoming blocked, ensures the normal use of the high-concentration industrial wastewater treatment device, removes impurities such as metals from the wastewater, and improves the actual effect of the high-concentration industrial wastewater treatment device in actual use.

[0008] However, current high-concentration wastewater treatment equipment has low ozone utilization rate, high ozone production energy consumption cost, high cost of recovering and treating underutilized ozone tail gas, and difficulty in removing adhering substances inside wastewater treatment equipment, difficulty in replacing catalysts, and low overall automation level. Summary of the Invention

[0009] The technical problem to be solved by this invention is to improve ozone utilization, reduce ozone production energy consumption costs, make full use of ozone, reduce tail gas recovery and treatment costs, facilitate the treatment of adhering substances inside wastewater treatment equipment, facilitate catalyst replacement, and improve the overall automation level of wastewater treatment equipment.

[0010] To address the aforementioned technical problems, this invention provides a high-concentration industrial wastewater treatment device based on ozone-photocatalysis, comprising a main tank, which includes a base, a tank body, a top cover, an air inlet, an air outlet, a liquid inlet, a liquid outlet, an observation port, a cleaning port, a sludge collection area, a reaction area, and a gas return area. The tank body is fixedly mounted on the base, and the top cover is fixedly mounted on the tank body. The top cover has an air inlet and an air outlet. The bottom of the tank body has a liquid inlet, and the side of the tank body has a liquid outlet, an observation port, and a cleaning port. The cleaning port is located near the bottom of the tank body, and the liquid outlet and observation port are located near the top of the tank body. The interior of the tank body is divided into a sludge collection area, a reaction area, and a gas return area from bottom to top.

[0011] The main tank is equipped with a permeable membrane ozone mechanism for catalyzing ozone in wastewater.

[0012] The main tank is equipped with a catalytic reaction mechanism for photocatalytic wastewater.

[0013] Preferably, the permeable membrane ozone generator includes a support base, a support frame, a first air inlet pipe, a tee pipe, a second air inlet pipe, a third air inlet pipe, a main air inlet, a main air pipe, branch air inlets, a permeable membrane, a lifting arm, and an ozone generator. The support base is fixedly installed inside the tank, and the support frame is fixedly installed on the support base. One side of the first air inlet pipe is connected to the ozone generator, and the other side is fixedly connected to the second air inlet pipe through the tee pipe. The other end of the second air inlet pipe is connected to the... The third air inlet pipe is fixedly connected. After passing through the air inlet, the third air inlet pipe is connected to the main air inlet. Multiple sets of main air pipes are provided. The main air inlet is fixedly connected to one set of main air pipes. Multiple sub-air inlet pipes are fixedly provided on each set of main air pipes. Each set of sub-air inlet pipes is fixedly connected to a set of breathable membranes. Multiple sets of breathable membranes are fixedly connected side by side through the support frame. Two sets of lifting arms are fixedly provided on both sides of the upper part of the support frame for hoisting the membrane ozone mechanism. An ozone generator is fixedly provided on one side of the main tank.

[0014] Preferably, the breathable membrane is a waterproof and breathable membrane, so that gas can pass through the breathable membrane smoothly, and wastewater cannot pass through the breathable membrane when it is not breathable.

[0015] Preferably, the permeable membrane ozone mechanism further includes a first outlet pipe, a second outlet pipe, a gas pipe solenoid valve, and a concentration monitor; one end of the first outlet pipe is connected to the outlet, and the other end is fixedly connected to the second inlet pipe through the gas pipe tee; one end of the second outlet pipe is fixedly connected to the second inlet pipe through the gas pipe tee, and the other end is connected to the ozone tail gas treatment device; the second inlet pipe, the first outlet pipe, and the second outlet pipe are each equipped with a gas pipe solenoid valve, and the concentration monitor is fixedly mounted on the upper cover, with its detection probe extending into the return gas area inside the tank body at the lower end of the upper cover;

[0016] Preferably, the catalytic reaction mechanism includes a porous horn support platform, a porous cylinder, sieve holes, and support columns; the porous horn support platform is fixedly installed on the upper side of the sludge collection area inside the tank, the cleaning port is located on the upper side of the porous horn support platform, the porous cylinder is arranged downward at the center of the porous horn support platform, the bottom of the porous cylinder is fixedly installed at the bottom of the tank, and the liquid inlet is located at the center of the porous cylinder; the bottom of the porous horn support platform is fixedly connected by multiple sets of support columns, and the bottom of the multiple sets of support columns is fixedly connected to the bottom of the tank;

[0017] Preferably, the porous horn support and the porous cylinder are provided with multiple sets of sieve holes, and the diameter of the sieve holes is smaller than the diameter of the photocatalyst ball;

[0018] Preferably, the catalytic reaction mechanism further includes a guide hole, an impact boss, an impact mandrel, and an impact cylinder; a guide hole is provided on the upper side inside the support column, an impact boss is fixedly provided in the guide hole, one end of the impact boss is fixedly connected to the multi-hole horn support platform, the mandrel is movably provided inside the support column and moves linearly along its axial direction, and the impact cylinder is fixedly provided at the bottom of the support column, with its shaft end fixedly connected to the impact mandrel;

[0019] Preferably, the ozone-photocatalytic high-concentration industrial wastewater treatment equipment further includes a multi-stage illumination mechanism, which includes a light strip groove, an upper mirror, an inner mirror, a lower mirror, and a light strip; multiple sets of light strip grooves are provided and fixedly installed on the inner wall of the reaction zone of the tank, evenly arranged along the axial direction of the tank; one side of the light strip groove is attached to the inner wall of the tank, and the other three sides are respectively fixedly provided with an upper mirror, an inner mirror, and a lower mirror, which together form a cavity, and a light strip is installed in the cavity;

[0020] Preferably, the ozone-photocatalytic high-concentration industrial wastewater treatment equipment further includes a monitoring and control mechanism, which includes a first inlet pipe, a liquid pipe tee, a second inlet pipe, an elbow, a third inlet pipe, a fourth inlet pipe, a drain pipe, a fifth inlet pipe, a first outlet pipe, a second outlet pipe, a third outlet pipe, a first return pipe, a second return pipe, a water quality monitor, a liquid pipe solenoid valve, and a booster pump; one end of the first inlet pipe is connected to the wastewater discharge mechanism, and the other end is fixedly connected to the second inlet pipe through the liquid pipe tee; the other end of the second inlet pipe is fixedly connected to the third inlet pipe through the elbow; the other end of the third inlet pipe is fixedly connected to the fourth inlet pipe through the liquid pipe tee; and the other end of the fourth inlet pipe is fixedly installed at the inlet; one end of the drain pipe is fixedly installed... On the liquid pipe tee fixedly connected to the fourth liquid inlet pipe, one end of the fifth liquid inlet pipe is fixedly installed on the liquid pipe tee of the first liquid inlet pipe, one end of the first liquid outlet pipe is fixedly installed on the liquid outlet, and the other end of the first liquid outlet pipe is fixedly connected to the second liquid outlet pipe and the second liquid return pipe through the liquid pipe tee. The other end of the second liquid outlet pipe is fixedly connected to the third liquid outlet pipe and the first liquid return pipe through the liquid pipe tee. The other end of the third liquid outlet pipe is connected to an external collection device. The other end of the first liquid return pipe is fixedly connected to the fifth liquid inlet pipe and the second liquid return pipe through the liquid pipe tee. A liquid pipe solenoid valve is fixedly installed on the drain pipe, the fifth liquid inlet pipe, the third liquid outlet pipe, and the second liquid return pipe. A water quality monitor is fixedly installed on the first liquid return pipe. A booster water pump is fixedly installed on the fourth liquid inlet pipe.

[0021] A treatment process for high-concentration industrial wastewater based on ozone-photocatalysis includes the following steps:

[0022] S1. The ozone generator generates ozone gas, which reaches the main air inlet through the first air inlet pipe, the second air inlet pipe, and the third air inlet pipe. It then enters the main air pipe and the branch air inlet pipe, and finally enters the reaction zone of the tank through the breathable membrane to react with the wastewater.

[0023] S2. When ozone gas enters the first inlet pipe, the solenoid valves on the first and second outlet pipes are closed. The gas enters the permeable membrane through the second and third inlet pipes. After the reaction, the gas containing residual ozone enters the return gas zone and reaches the first outlet pipe through the outlet. The concentration monitor monitors the ozone concentration in the return gas zone. When the concentration is higher than the set value, the solenoid valve on the first outlet pipe opens, and the solenoid valve on the second inlet pipe closes. The gas enters the permeable membrane a second time through the third inlet pipe for a second reaction, and the cycle repeats until the concentration is lower than the set value. Then, the solenoid valves on the second inlet and second outlet pipes open, and the exhaust gas enters the ozone exhaust gas treatment device through the second outlet pipe.

[0024] S3. The photocatalyst ball enters the wastewater through the inlet and is impacted by the water pressure in the porous cylinder onto the porous horn support. The photocatalyst ball undergoes a catalytic reaction with the wastewater after being irradiated by ultraviolet light.

[0025] S4. The impact cylinder drives the impact mandrel to move linearly up and down along its axis. During the movement, the impact mandrel frequently impacts the impact boss, which in turn causes the multi-hole horn support to vibrate. S5. The light strip emits ultraviolet light to irradiate the photocatalyst balls, completing the wastewater catalytic reaction. S6. Wastewater enters the tank through the first inlet pipe, second inlet pipe, third inlet pipe, fourth inlet pipe, and inlet. After catalytic oxidation, the water flows through the outlet and the first outlet pipe. The second outlet pipe leads to the third outlet pipe. After being detected by the water quality monitor on the first return pipe, if the water quality meets the discharge standard, it is discharged through the third outlet pipe. If the discharge standard is not met, it continues to enter the inlet pipe for secondary reaction through the first return pipe and the fifth inlet pipe until it meets the discharge standard. The secondary inlet power is provided by a booster pump fixedly installed on the fourth inlet pipe. The second return pipe is a backup pipe. The liquid pipe solenoid valves fixedly installed on the drain pipe, the fifth inlet pipe, the third outlet pipe, and the second return pipe are used to control the on and off.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. By setting up a membrane-type ozone mechanism, the contact area between wastewater and ozone is increased, especially the ability to achieve bubble-free aeration, which greatly improves the oxygen transfer efficiency in wastewater. Under the same conditions, the ozone usage time is greatly reduced, the oxygen production efficiency is reduced, and the manufacturing cost is reduced.

[0028] 2. By setting up a concentration monitor, a first outlet pipe, and an air pipe solenoid valve, when the ozone concentration is higher than the set value, it is recycled into the wastewater for secondary use. When the concentration is lower than the set value, it is discharged under the control of the air pipe solenoid valve, which improves the utilization rate of the inlet ozone and reduces the cost of recovering the discharged ozone.

[0029] 3. By setting the impact boss and impact mandrel in the catalytic reaction mechanism, the problem of wastewater sediment sticking to the porous horn support platform during the catalytic oxidation process can be effectively solved. When the impact mandrel is acted upon by the cylinder and impacts the porous horn support platform, it generates vibration, which shakes the sediment sticking to the porous horn support platform to the sludge collection area.

[0030] 4. By setting up a porous horn support platform and a porous cylinder, the contact area between the photocatalyst ball and the wastewater is increased. At the same time, the photocatalyst ball is subjected to the inlet pressure and flows in with the liquid inlet. Under normal working conditions, the photocatalyst ball cannot enter the liquid inlet and is kept in the porous horn support platform and porous cylinder. When the photocatalyst ball needs to be replaced, it is discharged through the drain pipe with the backflow of the liquid inlet, which facilitates the injection and replacement of the photocatalyst ball.

[0031] 5. By setting up a multi-level lighting mechanism, the contact surface between ultraviolet light and the waste liquid and the photocatalyst balls in the waste liquid is increased, and the catalytic reaction is carried out in multiple levels and from multiple angles, which improves the reaction speed, reduces the energy consumption of equipment operation, and increases the amount of waste liquid processed per unit time.

[0032] 6. By setting up a monitoring and control mechanism, the liquid after the catalytic reaction is monitored in real time. If it meets the standard, it is discharged; if it does not meet the standard, it continues to circulate and catalyze the reaction, which improves the automation level of the equipment. Attached Figure Description

[0033] The present invention will now be described in further detail with reference to the accompanying drawings:

[0034] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0035] Figure 2 This is a side view of the present invention;

[0036] Figure 3 This is the front view of the present invention;

[0037] Figure 4 for Figure 2 Schematic diagram of the cross section in the middle AA direction;

[0038] Figure 5 for Figure 3 Schematic diagram of the cross section in the middle BB direction;

[0039] Figure 6 for Figure 4 Enlarged view of a portion of region C in the middle;

[0040] Figure 7 for Figure 5 Enlarged view of a portion of region D;

[0041] Figure 8 for Figure 5 Enlarged view of a portion of region E in the middle;

[0042] Figure 9 for Figure 3 Enlarged view of a portion of region F in the middle;

[0043] In the picture:

[0044] 1. Main tank; 101. Base; 102. Tank body; 103. Top cover; 104. Air inlet; 105. Air outlet; 106. Liquid inlet; 107. Liquid outlet; 108. Observation port; 109. Cleaning port; 110. Sludge collection area; 111. Reaction area; 112. Gas return area; 2. Membrane ozone generator; 201. Support base; 202. Support frame; 203. First air inlet pipe; 204. Air inlet tee; 205. Second air inlet pipe; 206. Third air inlet pipe; 207. First air outlet pipe; 208. Second air outlet pipe; 209. Main air inlet; 210. Main air pipe; 211. Sub-inlet pipe; 212. Breathable membrane; 213. Lifting arm; 214. Ozone generator; 215. Air pipe solenoid valve; 216. Concentration monitor; 3. Catalytic reaction mechanism; 301. Multi-hole horn 302. Support platform; 303. Perforated cylinder; 304. Sieve hole; 305. Support column; 306. Guide hole; 307. Impact boss; 308. Impact mandrel; 309. Impact cylinder; 4. Multi-stage illumination mechanism; 401. Lamp strip groove; 402. Upper mirror surface; 403. Inner mirror surface; 404. Lower mirror surface; 405. Lamp strip; 5. Monitoring and control mechanism; 501. First liquid inlet pipe; 502. Liquid pipe 503. Tee; 504. Second inlet pipe; 505. Elbow; 506. Third inlet pipe; 507. Drain pipe; 508. Fifth inlet pipe; 509. First outlet pipe; 510. Second outlet pipe; 511. Third outlet pipe; 512. First return pipe; 513. Second return pipe; 514. Water quality monitor; 515. Liquid pipe solenoid valve; 516. Booster pump; Detailed Implementation

[0045] Example 1:

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Please see Figures 1-9 A high-concentration industrial wastewater treatment device based on ozone-photocatalysis includes a main tank 1. The main tank 1 includes a base 101, a tank body 102, a top cover 103, an air inlet 104, an air outlet 105, a liquid inlet 106, a liquid outlet 107, an observation port 108, a cleaning port 109, a waste collection area 110, a reaction area 111, and a return gas area 112. The tank body 102 is fixedly mounted on the base 101, and the top cover 103 is fixedly mounted on the tank body 102. The upper cover 103 is provided with an air inlet 104 and an air outlet 105. The bottom of the tank body 102 is provided with a liquid inlet 106. The side of the tank body 102 is provided with a liquid outlet 107, an observation port 108, and a cleaning port 109. The cleaning port 109 is close to the bottom of the tank body 102, and the liquid outlet 107 and the observation port 108 are close to the top of the tank body 102. The interior of the tank body 102 is divided into a dirt collection area 110, a reaction area 111, and a gas return area 112 from bottom to top.

[0048] The main tank 1 is equipped with a permeable membrane ozone mechanism 2 for catalyzing ozone wastewater.

[0049] The main tank 1 is equipped with a catalytic reaction mechanism 3 for photocatalytic wastewater.

[0050] In some embodiments, please refer to Figure 2 , Figure 3 , Figure 5 , Figure 6The permeable membrane ozone generator 2 includes a support base 201, a support frame 202, a first air inlet pipe 203, a tee 204, a second air inlet pipe 205, a third air inlet pipe 206, a main air inlet 209, a main air pipe 210, a branch air inlet pipe 211, a permeable membrane 212, a lifting arm 213, and an ozone generator 214. The support base 201 is fixedly installed inside the tank 102, and the support frame 202 is fixedly installed on the support base 201. One side of the first air inlet pipe is connected to the ozone generator 214, and the other side is fixedly connected to the second air inlet pipe 205 through the tee 204. The other end of the second air inlet pipe 205 is fixedly connected to the third air inlet pipe 206 through the tee 204. The third air inlet pipe 206 passes through the air inlet 104 and is connected to the main air inlet 209. The main air pipe 210... Multiple sets are provided, with the main air inlet 209 fixedly connected to one set of main air pipes 210. Each set of main air pipes 210 is fixedly provided with multiple sets of branch air inlets 211, and each set of branch air inlets 211 is fixedly connected to a set of permeable membranes 212. The multiple sets of permeable membranes 212 are fixedly connected side by side through the support frame 202. Two sets of lifting arms 213 are fixedly provided on both sides of the upper part of the support frame 202 for hoisting the permeable membrane ozone mechanism 2. An ozone generator 214 is fixedly provided on one side of the main tank 1. In use, the ozone generator 214 generates ozone gas, which reaches the main air inlet 209 through the first air inlet pipe 203, the second air inlet pipe 205, and the third air inlet pipe 206, and then enters the main air pipe 210 and the branch air inlets 211. Finally, it enters the reaction zone 111 of the tank 102 through the permeable membrane 212 and undergoes an oxidation reaction with the wastewater.

[0051] In some embodiments, please refer to Figure 5 The breathable membrane 212 is a waterproof and breathable membrane, allowing gas to pass through smoothly. When gas is not allowed to pass through, wastewater cannot penetrate into the interior of the breathable membrane. By setting up a membrane-type ozone mechanism, the contact area between wastewater and ozone is increased, and in particular, bubble-free aeration can be achieved, which greatly improves the oxygen transfer efficiency in wastewater. Under the same conditions, the ozone usage time is greatly reduced, the oxygen production efficiency is reduced, and the manufacturing cost is reduced.

[0052] In some embodiments, please refer to Figure 2 , Figure 3The permeable membrane ozone generator 2 further includes a first outlet pipe 207, a second outlet pipe 208, a gas pipe solenoid valve 215, and a concentration monitor 216; one end of the first outlet pipe 207 is connected to the outlet 105, and the other end is fixedly connected to the second inlet pipe 205 through the gas pipe tee 204; one end of the second outlet pipe 208 is fixedly connected to the second inlet pipe 205 through the gas pipe tee 204, and the other end is connected to the ozone tail gas treatment device; the second inlet pipe 205 and the first outlet pipe 208... The first inlet pipe 207 and the second outlet pipe 208 are each equipped with a gas pipe solenoid valve 215. A concentration monitor 216 is fixedly mounted on the upper cover 103, with its detection probe extending into the return gas zone 112 inside the tank 102 at the lower end of the upper cover 103. During use, when ozone gas enters the first inlet pipe 203, the gas pipe solenoid valves 215 on the first outlet pipe 207 and the second outlet pipe 208 close, and the gas enters the breathable membrane 2 through the second inlet pipe 205 and the third inlet pipe 206. Within 12, the gas containing residual ozone after the reaction enters the return gas zone 112, and reaches the first outlet pipe 207 through the outlet 105. The concentration monitor 216 monitors the ozone concentration in the return gas zone 112. When the concentration is higher than the set value, the gas pipe solenoid valve 215 on the first outlet pipe 207 opens, and the gas pipe solenoid valve 215 on the second inlet pipe 205 closes. The gas then enters the breathable membrane 212 a second time through the third inlet pipe 206 for secondary reaction. The process repeats continuously until the concentration falls below a set value. At this point, the solenoid valve 215 on the second inlet pipe 205 and the second outlet pipe 208 opens, and the exhaust gas enters the ozone exhaust gas treatment device through the second outlet pipe 208. By setting up a concentration monitor, a first outlet pipe, and a solenoid valve, when the ozone concentration is higher than the set value, it is recycled into the wastewater for secondary use. When the concentration is lower than the set value, it is discharged under the control of the solenoid valve, which improves the utilization rate of the inlet ozone and reduces the cost of recovering the discharged ozone.

[0053] In some embodiments, please refer to Figure 5 The catalytic reaction mechanism 3 includes a porous horn support platform 301, a porous cylinder 302, a sieve 303, and support columns 304. The porous horn support platform 301 is fixedly installed on the upper side of the sludge collection area 110 inside the tank 102. The cleaning port 109 is located on the upper side of the porous horn support platform 301. The porous cylinder 302 is positioned downwards at the center of the porous horn support platform 301. The bottom of the porous cylinder 302 is fixedly installed at the bottom of the tank 102. The liquid inlet 106 is located at the center of the porous cylinder 302. The bottom of the porous horn support platform 301 is fixedly connected by multiple sets of support columns 304, and the bottoms of the multiple sets of support columns 304 are fixedly connected to the bottom of the tank 102.

[0054] In some embodiments, please refer to Figure 5 The porous horn support platform 301 and porous cylinder 302 have multiple sets of sieve holes 303, the diameter of which is smaller than the diameter of the photocatalyst ball. In use, the photocatalyst ball enters with the wastewater through the liquid inlet 106. Under the water pressure of the porous cylinder 302, the photocatalyst ball is impacted onto the porous horn support platform 301. The photocatalyst ball undergoes a catalytic reaction with the wastewater under ultraviolet irradiation. By setting the porous horn support platform and porous cylinder, the contact area between the photocatalyst ball and the wastewater is increased. At the same time, the photocatalyst ball is subjected to the liquid inlet pressure and flows in through the liquid inlet. Under the pressure of the liquid inlet, under normal working conditions, the photocatalyst ball cannot enter the liquid inlet and remains inside the porous horn support platform and porous cylinder. When the photocatalyst ball needs to be replaced, it is discharged through the drain pipe by the liquid inlet backflow, which facilitates the injection and replacement of the photocatalyst ball.

[0055] In some embodiments, please refer to Figure 7 The catalytic reaction mechanism 3 further includes a guide hole 305, an impact boss 306, an impact mandrel 307, and an impact cylinder 308. A guide hole 305 is provided on the upper side of the support column 304. The impact boss 306 is fixedly installed within the guide hole 305, and one end of the impact boss 306 is fixedly connected to the multi-hole horn support platform 301. The mandrel 307 is movably installed inside the support column 304 and moves linearly along its axis. The impact cylinder 308 is fixedly installed at the bottom of the support column 304, and its shaft end is fixedly connected to the impact mandrel 307. In use, the impact cylinder 308 drives the impact spindle 307 to move linearly up and down along its axis. During the movement, the impact spindle 307 frequently impacts the impact boss 306, and the impact boss 306 causes the porous horn support 301 to vibrate. By setting the impact boss and impact spindle in the catalytic reaction mechanism, the problem of wastewater sediment sticking to the porous horn support during catalytic oxidation can be effectively solved. When the impact spindle is acted upon by the cylinder and impacts the porous horn support, vibration is generated, which shakes the sediment sticking to the porous horn support to the collection area.

[0056] In some embodiments, please refer to Figure 8The ozone-photocatalytic high-concentration industrial wastewater treatment equipment also includes a multi-stage illumination mechanism 4, which includes a light strip groove 401, an upper mirror 402, an inner mirror 403, a lower mirror 404, and a light strip 405. Multiple sets of light strip grooves 401 are fixedly installed on the inner wall of the reaction zone 111 of the tank 102, evenly arranged along the axial direction of the tank 102. One side of the light strip groove 401 is attached to the inner wall of the tank 102, and the other three sides are respectively fixedly equipped with upper mirrors 405. The mirror 402, inner mirror 403, and lower mirror 404 together form a cavity, and a light strip 405 is installed inside the cavity. In use, the light strip 405 emits ultraviolet light to irradiate the photocatalyst balls, completing the catalytic reaction of the wastewater. By setting up a multi-level lighting mechanism, the contact surface between ultraviolet light and the waste liquid and the photocatalyst balls in the waste liquid is increased, and the catalytic reaction is carried out in multiple levels and from multiple angles, which improves the reaction speed, reduces the energy consumption of equipment operation, and increases the amount of waste liquid processed per unit time.

[0057] In some embodiments, please refer to Figure 2 , Figure 9The ozone-photocatalytic high-concentration industrial wastewater treatment equipment also includes a monitoring and control mechanism 5. The monitoring and control mechanism 5 includes a first inlet pipe 501, a liquid pipe tee 502, a second inlet pipe 503, an elbow 504, a third inlet pipe 505, a fourth inlet pipe 506, a drain pipe 507, a fifth inlet pipe 508, a first outlet pipe 509, a second outlet pipe 510, a third outlet pipe 511, a first return pipe 512, a second return pipe 513, a water quality monitor 514, a liquid pipe solenoid valve 515, and a booster pump 516. One end of the first inlet pipe 501 is connected to the wastewater discharge mechanism, and the other end is fixedly connected to the second inlet pipe 503 via the liquid pipe tee 502. The second inlet pipe 503 is fixedly connected to the third inlet pipe 505 via the elbow 504 at one end. The third inlet pipe 505 is fixedly connected to the fourth inlet pipe 506 via the liquid pipe tee 502 at the other end. The fourth inlet pipe 506 is fixedly mounted on the inlet port 106 at the other end. One end of the outlet pipe 507 is fixedly mounted on the liquid pipe tee 502 fixedly connected to the fourth inlet pipe 506 at one end. One end of the fifth inlet pipe 508 is fixedly mounted on the liquid pipe tee 502 of the first inlet pipe 501 at one end. One end of the first outlet pipe 509 is fixedly mounted on the outlet port 107 at one end, and its other end is connected to the liquid pipe tee 504 at the other end. 2 is fixedly connected to the second outlet pipe 510 and the second return pipe 513. The other end of the second outlet pipe 510 is fixedly connected to the third outlet pipe 511 and the first return pipe 512 through the liquid pipe tee 502. The other end of the third outlet pipe 511 is connected to an external collection device. The other end of the first return pipe 512 is fixedly connected to the fifth inlet pipe 508 and the second return pipe 513 through the liquid pipe tee 502. Liquid pipe solenoid valves 515 are fixedly installed on the drain pipe 507, the fifth inlet pipe 508, the third outlet pipe 511, and the second return pipe 513. A water quality monitor 514 is fixedly installed on the first return pipe 512. The fourth inlet pipe 5... A booster pump 516 is fixedly installed on the 06. In use, wastewater enters the tank 102 through the first inlet pipe 501, the second inlet pipe 503, the third inlet pipe 505, the fourth inlet pipe 506, and the inlet 106. After catalytic oxidation, the water passes through the outlet 107, the first outlet pipe 509, and the second outlet pipe 510 to the third outlet pipe 511. After being detected by the water quality monitor 514 on the first return pipe 512, if the discharge standard is met, it is discharged through the third outlet pipe 511. If the discharge standard is not met, it continues to enter the inlet pipe for secondary reaction through the first return pipe 512 and the fifth inlet pipe 508 until the standard is met for discharge.The secondary liquid inlet power is provided by a booster water pump 516 fixedly installed on the fourth liquid inlet pipe 506. The second liquid return pipe 513 is a backup pipe. Liquid pipe solenoid valves 515 fixedly installed on the drain pipe 507, the fifth liquid inlet pipe 508, the third liquid outlet pipe 511, and the second liquid return pipe 513 are used to control the on-off state. By setting up a monitoring and control mechanism, the liquid after the catalytic reaction is monitored in real time. If it is qualified, it is discharged; if it is not qualified, it continues to circulate and catalyze the reaction, which improves the automation level of the equipment.

[0058] A treatment process for high-concentration industrial wastewater based on ozone-photocatalysis includes the following steps:

[0059] S1. The ozone generator 214 generates ozone gas, which reaches the main inlet 209 through the first inlet pipe 203, the second inlet pipe 205, and the third inlet pipe 206, and then enters the main gas pipe 210 and the branch inlet pipe 211, finally passing through the permeable membrane 212 into the reaction zone 111 of the tank 102 to react with the wastewater; S2. When the ozone gas enters the first inlet pipe 203, the gas pipe solenoid valves 215 on the first outlet pipe 207 and the second outlet pipe 208 are closed, and the gas enters the permeable membrane 212 through the second inlet pipe 205 and the third inlet pipe 206. After the reaction, the gas containing residual ozone enters the tank 102. The gas flows from the return gas zone 112 to the first outlet pipe 207 via the outlet 105. The concentration monitor 216 monitors the ozone concentration in the return gas zone 112. When the concentration is higher than the set value, the gas pipe solenoid valve 215 on the first outlet pipe 207 opens, and the gas pipe solenoid valve 215 on the second inlet pipe 205 closes. The gas then enters the permeable membrane 212 a second time through the third inlet pipe 206 for a secondary reaction, repeating the cycle. When the concentration is lower than the set value, the gas pipe solenoid valves 215 on the second inlet pipe 205 and the second outlet pipe 208 open, and the exhaust gas enters the ozone exhaust gas treatment device through the second outlet pipe 208.

[0060] S3. The photocatalyst ball enters the wastewater through the inlet 106 and is impacted by the water pressure in the porous cylinder 302. The photocatalyst ball is then irradiated by ultraviolet light and undergoes a catalytic reaction with the wastewater.

[0061] S4. The impact cylinder 308 drives the impact spindle 307 to move up and down linearly along its axis. During the movement, the impact spindle 307 frequently impacts the impact boss 306, and the impact boss 306 causes the multi-hole horn support 301 to vibrate.

[0062] S5. The light strip 405 emits ultraviolet light to irradiate the photocatalyst ball, thus completing the catalytic reaction of the wastewater.

[0063] S6. Wastewater enters the tank 102 through the first inlet pipe 501, the second inlet pipe 503, the third inlet pipe 505, the fourth inlet pipe 506, and the inlet 106. After catalytic oxidation, the water passes through the outlet 107, the first outlet pipe 509, the second outlet pipe 510, and reaches the third outlet pipe 511. After being detected by the water quality monitor 514 on the first return pipe 512, if it meets the discharge standards, it flows through the third outlet pipe 511. If the discharge does not meet the emission standards, it will continue to enter the inlet pipe for secondary reaction through the first return pipe 512 and the fifth inlet pipe 508 until the standard is met for discharge. The secondary inlet power is provided by a booster water pump 516 fixedly installed on the fourth inlet pipe 506. The second return pipe 513 is a backup pipe. The liquid pipe solenoid valves 515 fixedly installed on the drain pipe 507, the fifth inlet pipe 508, the third outlet pipe 511, and the second return pipe 513 are used to control the on and off.

[0064] Obviously, the above embodiments are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, these obvious variations or modifications derived from the spirit of the present invention are still within the scope of protection of the present invention.

Claims

1. A high-concentration industrial wastewater treatment device based on ozone-photocatalysis, characterized in that: The system includes a main tank (1), which comprises a base (101), a tank body (102), a top cover (103), an air inlet (104), an air outlet (105), a liquid inlet (106), a liquid outlet (107), an observation port (108), a cleaning port (109), a sludge collection area (110), a reaction area (111), and a return air area (112). The tank body (102) is fixedly mounted on the base (101), and the top cover (103) is fixedly mounted on the tank body (102). The top cover (103) has an air inlet (104) and an air outlet (105). The bottom of the tank body (102) is... The tank (102) is provided with an inlet (106), and an outlet (107), an observation port (108), and a cleaning port (109) are provided on the side of the tank (102). The cleaning port (109) is close to the bottom of the tank (102), and the outlet (107) and the observation port (108) are close to the top of the tank (102). The interior of the tank (102) is divided into a sludge collection area (110), a reaction area (111), and a gas return area (112) from bottom to top. A membrane ozone mechanism (2) for ozone catalytic wastewater is fixedly installed in the main tank (1). A catalytic reaction mechanism (3) for photocatalytic wastewater is fixedly installed in the main tank (1). The catalytic reaction mechanism (3) includes a porous horn support platform (301), a porous cylinder (302), a sieve (303), and support columns (304); the porous horn support platform (301) is fixedly installed on the upper side of the sludge collection area (110) inside the tank (102), the cleaning port (109) is located on the upper side of the porous horn support platform (301), the porous cylinder (302) is arranged downward at the center of the porous horn support platform (301), the bottom of the porous cylinder (302) is fixedly installed at the bottom of the tank (102), and the liquid inlet (106) is located at the center of the porous cylinder (302); the bottom of the porous horn support platform (301) is fixedly connected by multiple sets of support columns (304), and the bottom of the multiple sets of support columns (304) is fixedly connected to the bottom of the tank (102); The porous speaker support (301) and porous cylinder (302) have multiple sets of sieve holes (303), the diameter of which is smaller than the diameter of the photocatalyst ball.

2. The high-concentration industrial wastewater treatment equipment based on ozone-photocatalysis according to claim 1, characterized in that, The permeable membrane ozone generator (2) includes a support base (201), a support frame (202), a first air inlet pipe (203), a tee pipe (204), a second air inlet pipe (205), a third air inlet pipe (206), a main air inlet (209), a main air pipe (210), a branch air inlet pipe (211), a permeable membrane (212), a lifting arm (213), and an ozone generator (214). The support base (201) is fixedly installed inside the tank (102), and the support frame (202) is fixedly installed on the support base (201). One side of the first air inlet pipe is connected to the ozone generator (214), and the other side is fixedly connected to the second air inlet pipe (205) through the tee pipe (204). The other end of the second air inlet pipe (205) is connected to the tee pipe (204). The passage (204) is fixedly connected to the third air inlet pipe (206). The third air inlet pipe (206) passes through the air inlet (104) and is connected to the main air inlet (209). The main air pipe (210) is provided with multiple sets. The main air inlet (209) is fixedly connected to one set of the main air pipe (210). Multiple sets of sub-air inlet pipes (211) are fixedly provided on each set of main air pipes (210). Each set of sub-air inlet pipes (211) is fixedly connected to a set of breathable membranes (212). Multiple sets of breathable membranes (212) are fixedly connected side by side through the support frame (202). Two sets of lifting arms (213) are fixedly provided on both sides of the upper part of the support frame (202) for hoisting the permeable membrane ozone mechanism (2). An ozone generator (214) is fixedly provided on one side of the main tank (1).

3. The high-concentration industrial wastewater treatment equipment based on ozone-photocatalysis according to claim 2, characterized in that, The breathable membrane (212) is a waterproof and breathable membrane, so that gas can pass through the breathable membrane (212) smoothly. When the gas is not passed through, wastewater cannot pass through the interior of the breathable membrane.

4. The high-concentration industrial wastewater treatment equipment based on ozone-photocatalysis according to claim 3, characterized in that, The permeable membrane ozone mechanism (2) further includes a first outlet pipe (207), a second outlet pipe (208), a gas pipe solenoid valve (215), and a concentration monitor (216); one end of the first outlet pipe (207) is connected to the outlet (105), and the other end is fixedly connected to the second inlet pipe (205) through the gas pipe tee (204); one end of the second outlet pipe (208) is fixedly connected to the second inlet pipe (205) through the gas pipe tee (204), and the other end is connected to the ozone tail gas treatment device; the second inlet pipe (205), the first outlet pipe (207), and the second outlet pipe (208) are respectively equipped with gas pipe solenoid valves (215), and the concentration monitor (216) is fixedly installed on the upper cover (103), and its detection probe extends into the return gas area (112) inside the tank (102) at the lower end of the upper cover (103).

5. The high-concentration industrial wastewater treatment equipment based on ozone-photocatalysis according to claim 4, characterized in that, The catalytic reaction mechanism (3) further includes a guide hole (305), an impact boss (306), an impact mandrel (307), and an impact cylinder (308); the upper side of the support column (304) is provided with a guide hole (305), the impact boss (306) is fixedly installed in the guide hole (305), one end of the impact boss (306) is fixedly connected to the multi-hole horn support platform (301), the mandrel (307) is movably installed inside the support column (304) and moves linearly along its axis, and the impact cylinder (308) is fixedly installed at the bottom of the support column (304), and its shaft end is fixedly connected to the impact mandrel (307).

6. The high-concentration industrial wastewater treatment equipment based on ozone-photocatalysis according to claim 5, characterized in that, The ozone-photocatalytic high-concentration industrial wastewater treatment equipment also includes a multi-stage illumination mechanism (4), which includes a light strip groove (401), an upper mirror (402), an inner mirror (403), a lower mirror (404), and a light strip (405). The light strip groove (401) is provided in multiple sets and is fixedly installed on the inner wall of the reaction zone (111) of the tank (102). It is evenly arranged along the axial direction of the tank (102). One side of the light strip groove (401) is attached to the inner wall of the tank (102), and the other three sides are respectively fixedly provided with an upper mirror (402), an inner mirror (403), and a lower mirror (404), which together form a cavity. The light strip (405) is installed in the cavity.

7. The high-concentration industrial wastewater treatment equipment based on ozone-photocatalysis according to claim 6, characterized in that, The ozone-photocatalytic high-concentration industrial wastewater treatment equipment also includes a monitoring and control mechanism (5), which includes a first inlet pipe (501), a liquid pipe tee (502), a second inlet pipe (503), an elbow (504), a third inlet pipe (505), a fourth inlet pipe (506), a drain pipe (507), a fifth inlet pipe (508), a first outlet pipe (509), a second outlet pipe (510), a third outlet pipe (511), a first return pipe (512), a second return pipe (513), a water quality monitor (514), and a liquid pipe solenoid valve (515). A booster pump (516); one end of the first inlet pipe (501) is connected to the wastewater discharge mechanism, and the other end is fixedly connected to the second inlet pipe (503) through the liquid pipe tee (502). The other end of the second inlet pipe (503) is fixedly connected to the third inlet pipe (505) through the elbow (504). The other end of the third inlet pipe (505) is fixedly connected to the fourth inlet pipe (506) through the liquid pipe tee (502). The other end of the fourth inlet pipe (506) is fixedly installed on the inlet (106); one end of the drain pipe (507) is fixedly installed on... The fifth inlet pipe (508) is fixedly mounted on the liquid pipe tee (502) of the first inlet pipe (501) at one end, and the first outlet pipe (509) is fixedly mounted on the outlet (107) at one end, and its other end is fixedly connected to the second outlet pipe (510) and the second return pipe (513) through the liquid pipe tee (502). The other end of the second outlet pipe (510) is fixedly connected to the third outlet pipe (511) and the first return pipe (513) through the liquid pipe tee (502). 2) Fixed connection: The other end of the third liquid outlet pipe (511) is connected to an external collection device. The other end of the first liquid return pipe (512) is fixedly connected to the fifth liquid inlet pipe (508) and the second liquid return pipe (513) through the liquid pipe tee (502). Liquid pipe solenoid valves (515) are fixedly installed on the drain pipe (507), the fifth liquid inlet pipe (508), the third liquid outlet pipe (511), and the second liquid return pipe (513). A water quality monitor (514) is fixedly installed on the first liquid return pipe (512). A booster water pump (516) is fixedly installed on the fourth liquid inlet pipe (506).

8. The treatment process of a high-concentration industrial wastewater treatment device based on ozone-photocatalysis according to claim 7, characterized in that, Includes the following steps: S1. The ozone generator (214) generates ozone gas, which passes through the first air inlet pipe (203), the second air inlet pipe (205), and the third air inlet pipe (206) to reach the main air inlet (209), and then enters the main air pipe (210) and the branch air inlet pipe (211). Finally, it enters the reaction zone (111) of the tank (102) through the breathable membrane (212) and reacts with the wastewater to undergo an oxidation reaction. S2. When ozone gas enters the first inlet pipe (203), the solenoid valves (215) on the first outlet pipe (207) and the second outlet pipe (208) are closed. The gas enters the breathable membrane (212) through the second inlet pipe (205) and the third inlet pipe (206). After the reaction, the gas containing residual ozone enters the return gas zone (112) and reaches the first outlet pipe (207) through the outlet (105). The concentration monitor (216) monitors the ozone concentration in the return gas zone (112). When the concentration is higher than the set value, the solenoid valve (215) on the first outlet pipe (207) opens, and the solenoid valve (215) on the second inlet pipe (205) closes. The gas enters the permeable membrane (212) twice through the third inlet pipe (206) for a secondary reaction, and the cycle repeats. Until the concentration is lower than the set value, the solenoid valves (215) on the second inlet pipe (205) and the second outlet pipe (208) open, and the exhaust gas enters the ozone exhaust gas treatment device through the second outlet pipe (208). S3. The photocatalyst ball enters the wastewater through the inlet (106) and is impacted by the water pressure in the porous cylinder (302) onto the porous horn support (301). The photocatalyst ball reacts with the wastewater under ultraviolet irradiation. S4. The impact cylinder (308) drives the impact spindle (307) to move up and down linearly along its axial direction. During the movement, the impact spindle (307) frequently impacts the impact boss (306), and the impact boss (306) causes the multi-hole horn support platform (301) to vibrate. S5. The light strip (405) emits ultraviolet light to irradiate the photocatalyst ball and complete the wastewater catalytic reaction. S6. Wastewater enters the tank (102) through the first inlet pipe (501), the second inlet pipe (503), the third inlet pipe (505), the fourth inlet pipe (506), and the inlet (106). After catalytic oxidation, the water passes through the outlet (107), the first outlet pipe (509), the second outlet pipe (510), and reaches the third outlet pipe (511). After being detected by the water quality monitor (514) on the first return pipe (512), if it meets the discharge standard, it will flow through the third outlet pipe (511). If the discharge does not meet the emission standards, it will continue to enter the inlet pipe for secondary reaction through the first return pipe (512) and the fifth inlet pipe (508) until the discharge meets the standards. The secondary inlet power is provided by a booster water pump (516) fixedly installed on the fourth inlet pipe (506). The second return pipe (513) is a backup pipe. The liquid pipe solenoid valve (515) fixedly installed on the drain pipe (507), the fifth inlet pipe (508), the third outlet pipe (511), and the second return pipe (513) is used to control the on and off.

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