Membrane catalysis ozone oxidation reactor

Abstract

The utility model relates to the technical field of wastewater treatment, and particularly discloses a membrane catalytic ozonation reactor which comprises a reactor body (100), and a wastewater adding assembly (200) and a catalyst adding pipe (300) are respectively arranged at the upper part of the side surface of the reactor body (100); a micro-nano bubble generator (400) is arranged at the bottom in the reactor body (100), and the micro-nano bubble generator (400) is communicated with an ozone source; at least one membrane catalysis assembly (600) is connected to the reactor body (100) in a closed loop manner. The device has the characteristics of sufficient contact reaction between hydroxyl free radicals and organic matters and higher utilization rate of catalytic ozonation.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a membrane catalytic ozone oxidation reactor. Background Art

[0002] Ozone catalytic oxidation technology is an efficient wastewater deep treatment technology and has been a hot application in the field of wastewater treatment in recent years. Compared with ozone as a single oxidant, the hydroxyl radical (·OH) formed by ozone under the action of a catalyst has a higher reaction rate with organic matter and is more oxidizing, and can oxidize almost all organic matter. The catalyst can catalyze ozone to directly oxidize organic matter in water into CO 2 and H 2 O, or oxidize large molecular organic matter into small molecules, making it easier to degrade. Compared with other advanced oxidation technologies, the ozone catalytic oxidation process has the advantages of no need to add any reagents, no secondary pollution, short process flow and easy operation.

[0003] The ozone reactor is the core of the ozone catalytic oxidation process and directly affects the efficiency of ozone catalytic oxidation. The patent document with the publication number "CN105000627A" discloses an ozone oxidation reactor, including a tank body and a water inlet pipeline connected to the tank body, the water inlet pipeline is provided with a water inlet and an ozone air inlet, the ozone air inlet is passed through ozone, and a hydraulic cavitation device is provided in the water inlet pipeline to cause water and ozone to undergo hydraulic cavitation; an ultrasonic oscillator is provided in the tank body to cause water and ozone to undergo ultrasonic cavitation, and the ultrasonic oscillator is connected to an ultrasonic generator; the cavity of the tank body is filled with a catalyst that excites ozone to produce hydroxyl radicals; it strengthens the effect of ozone oxidation by forming hydraulic cavitation and ultrasonic cavitation. The patent document with publication number "CN112811572A" discloses an ozone oxidation reactor and a sewage treatment system, which are designed using the principle of impact flow. A sewage input chamber, a reaction chamber and a gas input chamber are formed inside the main body. The reaction chamber is located between the sewage input chamber and the gas input chamber. A baffle structure is provided between the sewage input chamber and the reaction chamber, and between the reaction chamber and the gas input chamber. Each baffle structure is provided with a micron-sized hole. The sewage and ozone are first passed through the micron-sized holes at a relatively high rate to form a micron-sized liquid flow and an air flow, and the ozone and sewage are fully contacted through impact, thereby improving the oxidation effect. The patent document with the publication number of "CN112850876A" discloses a three-phase reactor for ozone catalytic oxidation, comprising a reactor body and an internal circulation component arranged therein; a distribution plate, a catalyst support plate and a gas-liquid separator are arranged in sequence from bottom to top inside the reactor body; the internal circulation component comprises a guide plate and a reflux pipe; the guide plate is in the shape of a funnel, located above the catalyst support plate and below the gas-liquid separator, the middle part of which is connected to the top of the reflux pipe, and the bottom of the reflux pipe passes through below the distribution plate to ensure that the reflux liquid can enter the mixing zone A along the reflux pipe; the inside of the reactor body is divided into a mixing zone A, a reaction zone B and a separation zone C in sequence along the water inlet direction by the distribution plate, the guide plate and the gas-liquid separator; the catalyst support plate is a group and is arranged in sequence in the reaction zone B; the ozone catalytic reactor integrating the gas-liquid mixing zone, the catalytic reaction zone and the gas-liquid separation zone has the advantages of complete functions, less supporting equipment and small footprint.The patent document with the publication number of "CN110002576A" discloses an ozone catalytic oxidation reactor and a sewage treatment method thereof. The wastewater to be treated enters a microbubble generator and is mixed with the ozone generated by the ozone generator. An ultraviolet lamp tube, an aeration plate, a catalyst layer and a water distribution device are arranged in sequence from top to bottom in the reactor body. A second ozone exhaust pipe and a first ozone exhaust pipe are respectively connected between the ozone generator, the aeration plate and the microbubble generator. The microbubble generator is connected to the water distribution device through a water inlet pipe, and the water distribution device is also connected to a backwashing water inlet pipe. The upper part of the reactor body is connected to a drain pipe with a drain valve and a backwashing drain valve, respectively. The top of the reactor body is connected to an exhaust gas discharge pipe with an exhaust gas destroyer. The ozone catalytic oxidation reactor uses a reasonable structural layout to allow ozone to be dispersed in the form of tiny bubbles, fully contact with wastewater, and be added at multiple points, thereby improving ozone utilization and reaction efficiency under the catalytic action of the catalyst and the synergistic action of ultraviolet rays; the ozone catalytic oxidation reactor that introduces ultraviolet light to coordinate ozone catalytic oxidation can effectively improve ozone oxidation efficiency. The above disclosed reactors are mainly aimed at improving the gas-liquid mixing effect and the ozone conversion rate, but there is still the problem that the generated hydroxyl radicals are difficult to react with organic matter and are easily quenched.

[0004] Therefore, the existing ozone catalytic oxidation treatment devices for wastewater have the problems of insufficient contact reaction between hydroxyl radicals and organic matter and low ozone catalytic oxidation utilization rate. Utility Model Content

[0005] In order to solve the above technical problems existing in the existing ozone catalytic oxidation treatment device for wastewater, the utility model provides a membrane catalytic ozone oxidation reactor, which has the characteristics of sufficient contact reaction between hydroxyl radicals and organic matter and high ozone catalytic oxidation utilization rate.

[0006] The technical solution of the utility model is as follows: a membrane catalytic ozone oxidation reactor, comprising a reactor body, wherein the upper side of the reactor body is respectively provided with a wastewater addition component and a catalyst addition tube; the inner bottom of the reactor body is provided with a micro-nano bubble generator, and the micro-nano bubble generator is connected to an ozone source; and at least one membrane catalytic component is connected in a closed loop on the reactor body. The reactor body in the utility model provides a stable reaction environment for the full reaction between wastewater, catalyst suspension and ozone; the wastewater addition component is used to add wastewater to be treated; the catalyst addition tube is used to add catalyst suspension; the micro-nano bubble generator is used to fully mix the wastewater to be treated with ozone; the catalyst suspension and ozone in the reactor body fully react with the wastewater, so that the organic matter in the wastewater is reduced from a high level to a lower level, and the ozone catalytic oxidation has a higher utilization rate; the membrane catalytic component in the utility model provides another reaction site for the treatment of wastewater, and the catalytic activity of the second catalyst in the membrane catalytic component Hydroxyl radicals are generated under the action of the membrane, and are fully in contact with organic matter in the membrane pores, reducing the wastewater entering the reactor body after treatment from a lower level to an even lower level, thereby improving the utilization rate of hydroxyl radicals. The wastewater to be treated in the utility model enters from the wastewater adding component on the upper part of the reactor body, is counter-mixed with the ozone from the micro-nano bubble generator, and is sucked by the circulating pump in the membrane catalytic component. The wastewater to be treated flows from top to bottom, and a part of it finally enters the membrane pores and flows out as produced water, while the other part flows back to the reactor body to continue the reaction, and promotes turbulence of the fluid in the reactor, thereby improving the adequacy of the mixing reaction.

[0007] Preferably, the wastewater adding assembly comprises a wastewater pipe, which is connected to the upper part of the reactor body, and a water distribution cover is provided at one end of the wastewater pipe located in the reactor body. The wastewater pipe is used to feed wastewater; the water distribution cover is used to evenly sprinkle the fed wastewater into the reactor body.

[0008] Preferably, a guide funnel is provided at the upper part of the reactor body, and the guide funnel is located below the water distribution hood. The guide funnel is used to better guide the wastewater evenly distributed by the water distribution hood to a more suitable position in the reactor body.

[0009] Preferably, one end of the catalyst addition tube located in the reactor body is connected to the guide funnel. The catalyst addition tube is connected to the guide funnel to send the catalyst suspension into the evenly distributed wastewater, so that the catalyst suspension and the evenly distributed wastewater are better guided to the appropriate position in the reactor body under the guidance of the guide funnel, and the catalytic oxidation reaction occurs after being more fully mixed with ozone.

[0010] Preferably, the catalyst suspension is introduced into the catalyst addition tube via a metering pump, which can accurately control the amount of catalyst suspension added into the reactor body, thereby ensuring that the entire catalytic oxidation reaction proceeds more fully.

[0011] Preferably, the catalyst suspension is made of a first catalyst, nanocarbon and water. Nanocarbon has a large specific surface area. The first catalyst is loaded on the nanocarbon, which can adsorb organic matter in the wastewater to the catalyst surface for reaction. When ozone in the water body is converted into hydroxyl radicals under the action of the catalyst on the surface of the nanocarbon, it can quickly react with the adsorbed organic matter efficiently on the one hand, and can also react with the organic matter in the water body on the other hand; wherein the catalyst suspension can also be directly and evenly distributed in the reactor body and mixed with the wastewater after distribution, so as to expand the scope of the catalytic reaction and make the entire reactor body a reaction zone.

[0012] Preferably, the first catalyst is at least one of magnesium oxide, calcium oxide, manganese dioxide, aluminum oxide, zinc oxide, iron oxide or titanium dioxide. The first catalyst can better absorb organic matter in the wastewater to the catalyst surface for reaction, and the ozone in the water is better converted into hydroxyl radicals under the action of the nano-carbon surface catalyst.

[0013] Preferably, the loading amount of the first catalyst on the nano-carbon is 0.5% to 20% of the mass of the nano-carbon. More preferably, the loading amount of the first catalyst on the nano-carbon is 1% to 18% of the mass of the nano-carbon. More preferably, the loading amount of the first catalyst on the nano-carbon is 5% to 15% of the mass of the nano-carbon. More preferably, the loading amount of the first catalyst on the nano-carbon is 8% to 12% of the mass of the nano-carbon. More preferably, the loading amount of the first catalyst on the nano-carbon is 10% of the mass of the nano-carbon. The loading amount of the first catalyst is limited so as not to be excessive while ensuring that the organic matter in the wastewater is fully adsorbed to the catalyst surface for reaction.

[0014] Preferably, the micro-nano bubble generator includes an ozone tube, which is connected to the bottom of the reactor body, and the ozone tube is provided with a generator body at one end of the reactor body, and an ozone source is connected to the other end of the ozone tube located outside the reactor body. The ozone tube is used to guide ozone from an external ozone source into the reactor body; ozone enters the reactor body from the bottom of the reactor body through the generator body, and a large number of micro-nano bubbles are generated under the action of the generator body, which increases the solubility of ozone in wastewater on the one hand, and slows down the rising rate of ozone gas on the other hand, thereby improving the utilization rate of ozone and increasing the wastewater treatment capacity of the reactor body.

[0015] Preferably, the membrane catalytic assembly comprises a cylindrical shell, the lower end of which is connected to a drain pipe, and the end of the drain pipe away from the cylindrical shell is connected to the lower part of the reactor body; a circulating pump is provided on the drain pipe; the upper end of the cylindrical shell is connected to a water inlet pipe, and the end of the water inlet pipe away from the cylindrical shell is connected to the upper part of the reactor body; a catalytic membrane tube is provided inside the cylindrical shell, and the space between the outer wall of the catalytic membrane tube and the inner wall of the cylindrical shell forms an annular cavity; the membrane pores of the catalytic membrane tube are loaded with a second catalyst. The cylindrical shell provides installation space for the catalytic membrane tube through a stable second reaction site; the drain pipe is used to guide the wastewater after the initial reaction of the reactor body into the catalytic membrane tube for re-reaction treatment; the circulating pump provides power for the wastewater after the initial reaction of the reactor body to enter the catalytic membrane tube for re-reaction; the water inlet pipe is used to guide the flowing water in the membrane tube of the catalytic membrane tube again into the reactor body for further treatment; the catalytic membrane tube can well re-react the incoming water in the reactor body; the circulating water enters through the membrane tube of the catalytic membrane tube, part of the circulating water flows out from the membrane tube, and part of it flows out from the membrane pores, and the water flowing out from the membrane pores is the oxidation water; when the wastewater passes through the membrane pores, the ozone, the second catalyst and the organic matter fully react in the narrow membrane pores to achieve efficient removal of organic matter, and the organic matter in the wastewater can be removed to a lower level.

[0016] Preferably, the pore size of the membrane pore is 10nm to 200nm. More preferably, the pore size of the membrane pore is 30nm to 180nm. More preferably, the pore size of the membrane pore is 50nm to 150nm. More preferably, the pore size of the membrane pore is 70nm to 130nm. More preferably, the pore size of the membrane pore is 90nm to 120nm. More preferably, the pore size of the membrane pore is 100nm to 110nm. The limited membrane pore size enables ozone, the second catalyst and organic matter to react more fully in the narrow membrane pores.

[0017] Preferably, the second catalyst is a metal oxide catalyst, which can be stably loaded in the membrane pores and can better react with ozone and organic matter to undergo sufficient catalytic oxidation reaction in the narrow membrane pores.

[0018] Preferably, the second catalyst is CuO, CeO 2 、NiFe 2 O 4 、Co 2 O 3 and MnO 2 The limited second catalyst type can better react with ozone and organic matter to fully catalyze and oxidize in the narrow membrane pores.

[0019] Preferably, the particle size of the metal oxide catalyst is less than 18,000 meshes. The limited particle size of the metal oxide catalyst can be more stably loaded in the membrane pores, and more fully catalytic oxidation reaction occurs with ozone and organic matter in the narrow membrane pores.

[0020] Preferably, the top and bottom of the cylindrical shell are both provided with outer clamping rings, which are sleeved on the catalytic membrane tube. The outer clamping rings can ensure the stability of the catalytic membrane tube in the cylindrical shell.

[0021] Preferably, the top and bottom of the cylindrical shell are both provided with conical hollow covers, and a connecting rod is provided between the two conical hollow covers. The connecting rod is located in the catalytic membrane tube, and a plurality of inverted cones are provided on the connecting rod along the length direction, and the diameter of the inverted cones gradually increases from bottom to top. The conical hollow cover can, on the one hand, assist in limiting the stability of the catalytic membrane tube working in the cylindrical shell, and on the other hand, enable the wastewater in the membrane tube to smoothly enter the water inlet pipe from the hollow part; the connecting rod provides a stable installation position for the plurality of inverted cones to ensure the stability of the operation of the plurality of inverted cones; the plurality of inverted cones are used to better and directly guide the incoming water after the first treatment of the reactor body to the catalytic membrane tube for secondary treatment; the inverted cone structure with a diameter gradually increasing from bottom to top is adapted to the direction of the water flow in the catalytic membrane tube, and can better guide the water flow in the catalytic membrane tube.

[0022] Preferably, the upper part of the cylindrical shell is connected with a drainage joint, which can discharge the qualified oxidation product water after the secondary treatment by the catalytic membrane tube.

[0023] Preferably, the top of the reactor body is connected to a tail gas pipe, and one end of the tail gas pipe away from the reactor body is connected to a tail gas destroyer. The tail gas pipe is used to discharge ozone tail gas that does not participate in the reaction; the tail gas destroyer is used to heat up and quickly decompose ozone into oxygen and discharge it into the atmosphere.

[0024] Preferably, the upper and lower parts of the reactor body are provided with connectors; the connector at the upper part of the reactor body is connected to the end of the water inlet pipe away from the cylindrical shell; the connector at the lower part of the reactor body is connected to the end of the drain pipe away from the cylindrical shell; the generator body is located below the connector at the lower part of the reactor body. The connectors at the upper and lower parts of the reactor body are used to connect with the water inlet pipe and drain pipe of the membrane catalytic assembly to form a circulation between the membrane catalytic assembly and the reactor body; the generator body is located below the connector at the lower part of the reactor body, so that the ozone at the generator body can better enter the catalytic membrane tube under the action of the circulation pump.

[0025] Preferably, the inner wall of the reactor body is provided with a plurality of blocking parts from top to bottom. The plurality of blocking parts can change the fluid form at the inner wall of the reactor body from laminar flow to turbulent flow, thereby enhancing the mixing effect; the upward flow generated by the micro-nano bubble generator, the suction and reflux of the circulation pump, and the blocking parts of the reactor body work together to fully mix the fluid in the reactor body, slow down the rising speed of ozone, and enhance the ozone catalytic oxidation effect.

[0026] Preferably, the blocking part is a blocking block or a blocking ring, which is easy to prepare and can also effectively change the fluid state at the inner wall of the reactor body from laminar flow to turbulent flow.

[0027] Preferably, a sludge discharge assembly is connected to the bottom of the reactor body, and the sludge discharge assembly is used to discharge insoluble matter that may be produced during the reaction of organic matter from the reactor body.

[0028] Preferably, the sludge discharge assembly includes a sludge discharge pipe, which is connected to the bottom of the reactor body and has a plurality of filter holes, which are located outside the reactor body. The sludge discharge pipe is used to discharge the insoluble matter in the reactor body; the plurality of filter holes are used to compress the insoluble matter and squeeze out the water therein when discharging the insoluble matter, so as to ensure that the insoluble sludge discharged from the sludge discharge pipe is in a relatively low water state.

[0029] Preferably, the mud discharge pipe is provided with two annular flanges, which are located outside the reactor body and between the multiple filter holes; the mud discharge pipe is provided with a motor 1 at one end away from the reactor body, and a rotating shaft is provided at the driving end of the motor 1, which extends into the mud discharge pipe, and the rotating shaft is arranged to rotate relative to the mud discharge pipe, and a spiral blade 1 is provided on the rotating shaft, and a mud outlet hole is provided near the motor 1 on the mud discharge pipe. The two annular flanges limit the setting positions of the multiple filter holes on the mud discharge pipe to ensure a better dehydration effect on the insoluble matter; the motor 1 provides power for the insoluble matter to be discharged from the reactor body; the rotating shaft drives the spiral blade 1 to rotate, and the insoluble sludge in the reactor body is smoothly transported and discharged to the mud outlet hole of the mud discharge pipe.

[0030] Preferably, the pitch of the spiral blade 1 gradually decreases in the direction away from the reactor body. The specific pitch of the spiral blade 1 is set to ensure that the insoluble sludge in the reactor body is smoothly transported and discharged to the mud outlet of the mud discharge pipe, while being able to squeeze and dehydrate the insoluble sludge therein.

[0031] Preferably, the sludge discharge assembly is provided with a filter assembly, which can filter the water discharged from the filter holes well to prevent insoluble sludge from being discharged from the filter holes.

[0032] Preferably, the filter assembly includes a water tank, which is sleeved on the mud discharge pipe, and the multiple filter holes are located in the water tank; a box cover is hinged on the top of the water tank, and two support seats are provided on the box cover, and two avoidance grooves are provided on the box cover, and two filter rollers are provided between the two support seats, and filter nets are provided on the two filter rollers, and the filter nets pass through the two avoidance grooves and fit the bottom of the mud discharge pipe. The water tank is used to uniformly store the water filtered at the filter holes; the box cover hinged on the top of the water tank can prevent external debris from falling into the water tank; the two support seats are used to support the filter rollers and other components; the two avoidance grooves are used for the filter net to pass through after winding; the two filter rollers are used to connect the two ends of the filter net, and the degree of closeness of the filter net relative to the mud discharge pipe can be adjusted; the filter net can well filter the squeezed water passing through the filter holes.

[0033] Preferably, a reflux pipe is connected to the bottom of the water storage tank, and one end of the reflux pipe away from the water storage tank is connected to the upper part of the reactor body, and a water pump is provided on the reflux pipe. The reflux pipe is used to guide the filtered water in the water storage tank into the reactor body for further treatment and reuse; the water pump provides power for sending the filtered water in the water storage tank into the reactor body.

[0034] Preferably, at least one convex strip is provided at one end of the two filter screen rollers away from the reactor body; two mounting holes are provided on the support seat away from the reactor body, and sleeve 1 and sleeve 2 are respectively rotatably inserted in the two mounting holes; the inner walls of sleeve 1 and sleeve 2 are each provided with at least one slot, and the slot matches the corresponding convex strip. The cooperation of the convex strip and the slot can well define the two filter screen rollers in sleeve 1 and sleeve 2 in the required manner; the two mounting holes provide a movable mounting position for sleeve 1 and sleeve 2 on the support seat; sleeve 1 and sleeve 2 can well define the two filter screen rollers on the support seat in the required manner.

[0035] Preferably, a slide groove is provided on the support seat away from the reactor body, and a slider 1 is provided on the sleeve 1, and the slider 1 is slidably arranged in the slide groove; a spring 1 is provided between the slider 1 and the inner wall of the slide groove, and the two ends of the spring 1 are respectively connected to the slider 1 and the inner wall of the slide groove. The slide groove can well limit the horizontal and appropriate movement of the slider 1; the cooperation of the slider 1, the slide groove and the spring 1 enables the filter screen roller of the sleeve 1 to be flexibly adjusted left and right as needed, so that the filter screen can be well fitted in the mud discharge pipe, ensuring the good progress of the entire filtering work.

[0036] Preferably, an arc groove is provided on the support seat away from the reactor body, a slider 2 is slidably provided in the arc groove, a spring 2 is provided between the slider 2 and the inner wall of the arc groove, and the two ends of the spring 2 are respectively connected to the slider 2 and the inner wall of the arc groove; a rotating arm is provided on the sleeve 2, and the slider 2 abuts against the rotating arm. The arc groove provides a guide for the movement of the slider 2; the arc groove, the slider 2, the spring 2 and the rotating arm are coordinated as a whole, so that the filter screen can fit well in the mud discharge pipe, ensuring the good progress of the entire filtering work.

[0037] Preferably, a push assembly is provided at the bottom of the reactor body, and the push assembly corresponds to the sludge discharge assembly. The push assembly is used to deliver the insoluble sludge in the reactor body to the spiral blade of the sludge discharge pipe, so as to ensure that the insoluble sludge in the reactor body can be discharged smoothly from the sludge discharge pipe; wherein the rotating shaft and the spiral blade extend into the reactor body together.

[0038] Preferably, the pushing assembly includes a rotating tube, which is rotatably arranged at the bottom of the reactor body; the rotating tube is provided with a second spiral blade, which is located in the reactor body; the rotating tube is provided with a gear one, which is located outside the reactor body; the reactor body is provided with a second motor, and the driving end of the second motor is provided with a second gear, which is meshed with the first gear; the end of the mud discharge pipe located in the reactor body is opposite to the second spiral blade. The rotating tube drives the second spiral blade to rotate together, and smoothly delivers the insoluble sludge in the reactor body to the entrance of the mud discharge pipe; the first gear is used to receive the driving force, so that the rotating tube rotates; the second motor provides a stable driving force for the rotation of the rotating tube; the second gear is used to stably transmit the driving force of the second motor to the first gear.

[0039] Preferably, the rotating tube sleeve is arranged on the ozone tube.

[0040] The utility model has the following beneficial effects:

[0041] (1) The reactor body provides a stable reaction environment for the full reaction between wastewater, catalyst suspension and ozone; the wastewater adding component is used to add wastewater to be treated; the catalyst adding tube is used to add catalyst suspension; the micro-nano bubble generator is used to fully mix the wastewater to be treated with ozone; the catalyst suspension and ozone in the reactor body fully react with the wastewater, so that the organic matter in the wastewater is reduced from a high level to a lower level, and the ozone catalytic oxidation has a high utilization rate;

[0042] (2) The membrane catalytic component provides another reaction site for wastewater treatment. Hydroxyl radicals are generated under the catalytic action of the second catalyst in the membrane catalytic component and fully contact with organic matter in the membrane pores, reducing the wastewater entering the reactor body from a lower level to a lower level, thereby improving the utilization rate of hydroxyl radicals.

[0043] (3) The wastewater to be treated enters from the wastewater addition assembly at the top of the reactor body, is counter-mixed with the ozone from the micro-nano bubble generator, and is pumped by the circulation pump in the membrane catalytic assembly. The wastewater to be treated flows from top to bottom. Part of it eventually enters the membrane pores and flows out as produced water, while the other part flows back to the reactor body to continue the reaction, and promotes turbulence of the fluid in the reactor, thereby improving the adequacy of the mixing reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is the first structural diagram of the utility model;

[0045] Figure 2 This is the flow diagram of the treated water in the catalytic membrane tube of the utility model;

[0046] Figure 3 It is a three-dimensional structural diagram of the utility model;

[0047] Figure 4 It is a three-dimensional cutaway view of the reactor body of the utility model;

[0048] Figure 5 It is a three-dimensional assembly diagram of the wastewater addition component, catalyst addition pipe and guide funnel of the utility model;

[0049] Figure 6 It is a three-dimensional cutaway view of the membrane catalytic component of the utility model;

[0050] Figure 7 This is a structural expansion diagram of the membrane catalyst assembly of the utility model;

[0051] Figure 8 This is a structural expansion diagram of the micro-nano bubble generator and the pushing component of the utility model;

[0052] Fig. 9 It is a structural expansion diagram of the sludge discharge component and the filter component of the utility model;

[0053] Fig.10 It is a structural expansion diagram of the water storage tank of the utility model;

[0054] Fig.11 It is a structural expansion diagram of the utility model including the first sleeve, the second sleeve and the filter screen roller.

[0055] The markings in the attached drawings are: 100-reactor body; 200-wastewater addition component; 300-catalyst addition pipe; 400-micro-nano bubble generator; 500-tail gas pipe; 600-membrane catalytic component; 700-sludge discharge component; 800-filter component; 900-push component; 101-connector; 102-guide funnel; 103-blocking part; 201-wastewater pipe; 202-water distribution cover; 401-ozone tube; 402-generator body; 601-cylindrical shell; 602-drain pipe; 603-circulation pump; 604-water inlet pipe; 605-catalytic membrane tube; 606-drainage joint; 607-outer clamp ring; 608-conical hollow cover; 609-connecting rod; 610-inverted cone; 611-membrane hole ;612-second catalyst;701-mud discharge pipe;702-annular flange;703-filter hole;704-rotating shaft;705-threaded blade one;706-motor one;801-water storage tank;802-tank cover;803-support seat;804-avoidance groove;805-filter screen roller;806-return pipe;807-water pump;808-convex strip;809-mounting hole;810-sleeve one;811-slider one;812-slide groove;813-spring one;814-sleeve two;815-rotating arm;816-arc groove;817-slider two;818-spring two;819-slot;901-rotating tube;902-spiral blade two;903-gear one;904-gear two;905-motor two. DETAILED DESCRIPTION

[0056] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0057] A membrane catalytic ozone oxidation reactor comprises a reactor body 100, wherein a wastewater addition assembly 200 and a catalyst addition pipe 300 are respectively arranged on the upper side of the reactor body 100; a micro-nano bubble generator 400 is arranged at the bottom of the reactor body 100, and the micro-nano bubble generator 400 is connected to an ozone source; and at least one membrane catalytic assembly 600 is connected in a closed loop on the reactor body 100. The wastewater addition assembly 200 comprises a wastewater pipe 201, which is arranged in communication with the upper part of the reactor body 100, and a water distribution cover 202 is arranged at one end of the wastewater pipe 201 located in the reactor body 100. The micro-nano bubble generator 400 comprises an ozone tube 401, which is connected to the bottom of the reactor body 100, and a generator body 402 is arranged at one end of the ozone tube 401 located in the reactor body 100, and an end of the ozone tube 401 located outside the reactor body 100 is connected to the ozone source. The membrane catalytic assembly 600 includes a cylindrical shell 601, the lower end of the cylindrical shell 601 is connected to a drain pipe 602, and the end of the drain pipe 602 away from the cylindrical shell 601 is connected to the lower part of the reactor body 100; a circulating pump 603 is provided on the drain pipe 602; the upper end of the cylindrical shell 601 is connected to a water inlet pipe 604, and the end of the water inlet pipe 604 away from the cylindrical shell 601 is connected to the upper part of the reactor body 100; a catalytic membrane tube 605 is provided inside the cylindrical shell 601, and the space between the outer wall of the catalytic membrane tube 605 and the inner wall of the cylindrical shell 601 forms an annular cavity; the membrane pore 611 of the catalytic membrane tube 605 is loaded with a second catalyst 612. The pore size of the membrane pore 611 is 10nm to 200nm. The upper part of the cylindrical shell 601 is connected to a drain joint 606. The top of the reactor body 100 is connected to a tail gas pipe 500, and the end of the tail gas pipe 500 away from the reactor body 100 is connected to a tail gas destroyer. The upper and lower parts of the reactor body 100 are provided with connectors 101; the connector 101 at the upper part of the reactor body 100 is connected to the end of the water inlet pipe 604 away from the cylindrical shell 601; the connector 101 at the lower part of the reactor body 100 is connected to the end of the drain pipe 602 away from the cylindrical shell 601. The inner wall of the reactor body 100 is provided with a plurality of blocking parts 103 from top to bottom. The blocking part 103 is a blocking block or a blocking ring.

[0058] like Figure 1 A membrane catalytic ozone oxidation reactor is shown, comprising: Figure 3 The reactor body 100 shown in FIG. 1 has a wastewater addition assembly 200 and a catalyst addition pipe 300 respectively disposed on the upper side of the reactor body 100. The catalyst suspension is introduced into the catalyst addition pipe 300. The bottom of the reactor body 100 is provided with a wastewater addition assembly 200 and a catalyst addition pipe 300. Figure 4 The micro-nano bubble generator 400 shown is connected to an ozone source; at least one membrane catalytic component 600 is connected to the reactor body 100 in a closed loop.

[0059] The wastewater adding assembly 200 includes a wastewater pipe 201, which is connected to the upper part of the reactor body 100. One end of the wastewater pipe 201 located in the reactor body 100 is provided with a Figure 5 The water distribution hood 202 is shown. A guide funnel 102 is provided at the upper part of the reactor body 100, and the guide funnel 102 is located below the water distribution hood 202. One end of the catalyst addition pipe 300 located in the reactor body 100 is connected to the guide funnel 102. The catalyst suspension is introduced into the catalyst addition pipe 300 through a metering pump. The catalyst suspension is made of a first catalyst, nanocarbon and water; the first catalyst is at least one of magnesium oxide, calcium oxide, manganese dioxide, aluminum oxide, zinc oxide, iron oxide or titanium dioxide; the loading amount of the first catalyst on the nanocarbon is 0.5% to 20% of the mass of the nanocarbon.

[0060] The micro-nano bubble generator 400 includes an ozone tube 401, which is connected to the bottom of the reactor body 100. The end of the ozone tube 401 located inside the reactor body 100 is provided with a generator body 402, and the end of the ozone tube 401 located outside the reactor body 100 is connected to an ozone source.

[0061] The membrane catalyst assembly 600 includes a cylindrical shell 601, the lower end of the cylindrical shell 601 is connected to a drain pipe 602, and the end of the drain pipe 602 away from the cylindrical shell 601 is connected to the lower part of the reactor body 100; a circulation pump 603 is provided on the drain pipe 602; the upper end of the cylindrical shell 601 is connected to a water inlet pipe 604, and the end of the water inlet pipe 604 away from the cylindrical shell 601 is connected to the upper part of the reactor body 100; the interior of the cylindrical shell 601 is provided with Figure 6 The catalyst membrane tube 605 shown in the figure has an annular cavity formed between the outer wall of the catalyst membrane tube 605 and the inner wall of the cylindrical shell 601; the membrane hole 611 of the catalyst membrane tube 605 is loaded with Figure 2 The second catalyst 612 shown in the figure has a pore size of 10 nm to 200 nm. The second catalyst 612 is a metal oxide catalyst. The second catalyst is composed of CuO, CeO 2 、NiFe 2 O 4 、Co 2 O 3 and MnO 2 The particle size of the metal oxide catalyst is less than 18,000 mesh. The top and bottom of the cylindrical shell 601 are both provided with an outer clamping ring 607, and the outer clamping ring 607 is sleeved on the catalytic membrane tube 605. The top and bottom of the cylindrical shell 601 are both provided with a conical hollow cover 608, and between the two conical hollow covers 608 is provided a Figure 7The connecting rod 609 shown is located in the catalytic membrane tube 605. The connecting rod 609 is provided with a plurality of inverted cones 610 along the length direction. The diameter of the inverted cones 610 gradually increases from bottom to top. The upper part of the cylindrical shell 601 is connected to a drainage joint 606. The top of the reactor body 100 is connected to the tail gas pipe 500. The end of the tail gas pipe 500 away from the reactor body 100 is connected to a tail gas destroyer.

[0062] The upper and lower parts of the reactor body 100 are both provided with connectors 101; the connector 101 at the upper part of the reactor body 100 is connected to the end of the water inlet pipe 604 away from the cylindrical shell 601; the connector 101 at the lower part of the reactor body 100 is connected to the end of the drain pipe 602 away from the cylindrical shell 601; the generator body 402 is located below the connector 101 at the lower part of the reactor body 100. The inner wall of the reactor body 100 is provided with a plurality of blocking parts 103 from top to bottom. The blocking part 103 is a blocking block or a blocking ring.

[0063] The bottom of the reactor body 100 is connected with a sludge discharge assembly 700. The sludge discharge assembly 700 includes a sludge discharge pipe 701, which is connected and arranged at the bottom of the reactor body 100. The sludge discharge pipe 701 is provided with a plurality of filter holes 703, and the plurality of filter holes 703 are located outside the reactor body 100. The sludge discharge pipe 701 is provided with two annular flanges 702, which are located outside the reactor body 100, and the plurality of filter holes 703 are located between the two annular flanges 702; a motor 706 is provided at one end of the sludge discharge pipe 701 away from the reactor body 100, and a rotating shaft 704 is provided at the driving end of the motor 706, and the rotating shaft 704 extends to the inside of the sludge discharge pipe 701, and the rotating shaft 704 is rotatably arranged relative to the sludge discharge pipe 701, and a spiral blade 705 is provided on the rotating shaft 704, and a sludge discharge hole is provided at a position near the motor 706 on the sludge discharge pipe 701. The pitch of the spiral blade 705 gradually decreases in the direction away from the reactor body 100.

[0064] The sludge discharge assembly 700 is provided with a filter assembly 800. The filter assembly 800 includes: Fig.10 The water storage tank 801 shown in the figure is sleeved on the mud discharge pipe 701, and multiple filter holes 703 are located in the water storage tank 801; the top of the water storage tank 801 is hinged with a box cover 802, and the box cover 802 is provided with Fig.11 The two support seats 803 shown in the figure have two avoidance grooves 804 formed on the box cover 802, and a Fig. 9The two filter screen rollers 805 shown in the figure are provided with filter screens, which pass through two avoidance grooves 804 and are attached to the bottom of the mud discharge pipe 701. A return pipe 806 is connected to the bottom of the water storage tank 801, and the end of the return pipe 806 away from the water storage tank 801 is connected to the upper part of the reactor body 100, and a water pump 807 is provided on the return pipe 806. At least one convex strip 808 is provided at one end of the two filter screen rollers 805 away from the reactor body 100; two mounting holes 809 are provided on the support seat 803 away from the reactor body 100, and a sleeve 1 810 and a sleeve 2 814 are respectively rotatably inserted in the two mounting holes 809; the inner walls of the sleeve 1 810 and the sleeve 2 814 are provided with at least one slot 819, and the slot 819 matches the corresponding convex strip 808. A slide groove 812 is provided on the support seat 803 away from the reactor body 100, and a slider 811 is provided on the sleeve 810. The slider 811 is slidably arranged in the slide groove 812; a spring 813 is provided between the slider 811 and the inner wall of the slide groove 812, and the two ends of the spring 813 are respectively connected to the slider 811 and the inner wall of the slide groove 812. An arc groove 816 is provided on the support seat 803 away from the reactor body 100, and a slider 817 is slidably arranged in the arc groove 816. A spring 818 is provided between the slider 817 and the inner wall of the arc groove 816, and the two ends of the spring 818 are respectively connected to the slider 817 and the inner wall of the arc groove 816; a rotating arm 815 is provided on the sleeve 814, and the slider 817 abuts against the rotating arm 815.

[0065] The bottom of the reactor body 100 is provided with a push assembly 900, which corresponds to the sludge discharge assembly 700. The push assembly 900 includes a rotating tube 901, which is rotatably arranged at the bottom of the reactor body 100; Figure 8 The spiral blade 2 902 is shown, and the spiral blade 2 902 is located in the reactor body 100; the rotating tube 901 is provided with a gear 1 903, and the gear 1 903 is located outside the reactor body 100; the reactor body 100 is provided with a motor 2 905, and the driving end of the motor 2 905 is provided with a gear 2 904, and the gear 2 904 is meshed with the gear 1 903; the end of the mud discharge pipe 701 located in the reactor body 100 is opposite to the spiral blade 2 902. The rotating tube 901 is sleeved on the ozone tube 401.

[0066] A membrane catalytic ozone oxidation reactor comprises a reactor body 100, wherein the upper part of the side of the reactor body 100 is penetrated by a fixed wastewater addition component 200 and a catalyst addition pipe 300, wherein the wastewater addition component 200 is used to add wastewater, and the catalyst addition pipe 300 is used to add a catalyst, wherein the catalyst is added into the reactor body 100 from the catalyst addition pipe 300 through a metering pump, and the catalyst is a suspension liquid, mainly containing nano-carbon and water as catalytic components. The nano-carbon has a large specific surface area and carries a catalyst, and can adsorb organic matter in the wastewater to the catalyst surface for reaction, and when the ozone in the water body is converted into hydroxyl radicals under the action of the catalyst on the surface of the nano-carbon, it can react quickly and efficiently with the adsorbed organic matter on the one hand, and can also react with the organic matter in the water body on the other hand. The catalyst in the reactor can be evenly distributed in the reactor, expanding the scope of the catalytic reaction, so that the entire reactor is a reaction zone.

[0067] A micro-nano bubble generator 400 is provided through the bottom of the reactor body 100. The micro-nano bubble generator 400 is used to input ozone. The ozone flows from bottom to top, and the added wastewater flows from top to bottom, forming convection, so that the wastewater and the ozone are fully in contact. Ozone enters the reactor from the micro-nano bubble generator 400, generating a large number of micro-nano bubbles, which on the one hand increases the solubility of ozone in wastewater, and on the other hand slows down the rising rate of ozone gas, thereby improving the utilization rate of ozone and increasing the processing capacity of the reactor.

[0068] A tail gas pipe 500 is fixedly installed on the top of the reactor body 100, and the other end of the tail gas pipe 500 is connected to a tail gas destroyer through a pipeline, and the ozone tail gas is discharged from the top of the reactor into the tail gas destroyer. Membrane catalytic components 600 are arranged on both sides of the reactor body 100, and the membrane catalytic components 600 are used to drive the wastewater in the lower layer of the reactor body 100 to pass through the membrane catalytic components 600, and flow back from the top of the membrane catalytic components 600 to the upper layer of the reactor body 100, and the membrane catalytic components 600 are also used to perform membrane catalytic treatment on the wastewater; a sludge discharge component 700 is arranged on the side of the bottom of the reactor body 100, and a filtering component 800 is arranged on the surface of the sludge discharge component 700, and a pushing component 900 is arranged through the bottom of the reactor body 100, and the pushing component 900 is used to push the sludge at the bottom of the reactor body 100 into the sludge discharge component 700, and the sludge discharge component 700 is used to discharge the sludge, and the filtering component 800 is used to filter the water in the sludge.

[0069] Two groups of connectors 101 distributed up and down are fixedly installed on both sides of the reactor body 100, and the connectors 101 distributed up and down are connected to the membrane catalyst assembly 600. A guide funnel 102 is fixedly installed on the inner wall of the upper half of the reactor body 100. The guide funnel 102 is used to guide the wastewater added by the wastewater addition assembly 200 and the catalyst added by the catalyst addition pipe 300. The wastewater and the catalyst are added to the inside of the guide funnel 102 together, enter preliminary mixing, and then discharged into the inside of the reactor body 100. The inner wall of the middle part of the reactor body 100 is arrayed with blocking parts 103 along its length direction. The blocking parts 103 block the wastewater and ozone inside the reactor body 100 to form turbulence, further ensuring the mixing effect of wastewater and ozone. The wastewater addition component 200 includes a wastewater pipe 201 that penetrates and is fixed on the side of the reactor body 100, a water distribution cover 202 is fixedly installed at the end of the wastewater pipe 201, a plurality of holes are arranged at the bottom of the water distribution cover 202, and the water distribution cover 202 is located directly above the guide funnel 102, and the catalyst addition pipe 300 is penetrated and fixed on the side of the guide funnel 102. The micro-nano bubble generator 400 includes an ozone tube 401 that penetrates and is arranged at the bottom center of the reactor body 100, a generator body 402 is fixedly installed at the top of the ozone tube 401, and the generator body 402 is located below the connector 101.

[0070] The membrane catalytic assembly 600 includes two groups of cylindrical shells 601 arranged on the left and right sides of the reactor body 100, a drain pipe 602 is fixedly installed at the bottom of the cylindrical shell 601, a circulating pump 603 is arranged in the middle of the drain pipe 602, and an inlet pipe 604 is fixedly installed at the top of the cylindrical shell 601. The inlet pipe 604 and the drain pipe 602 are respectively connected to two groups of connectors 101 distributed above and below. Catalytic membrane tubes 605 are arranged inside the cylindrical shell 601 and the drain pipe 602, and an annular cavity is formed between the outer wall of the catalytic membrane tube 605 and the inner wall of the cylindrical shell 601. Wastewater is sucked from the lower part of the reactor body 100 by the circulating pump 603 and the drain pipe 602, and part of the wastewater flows through the middle of the catalytic membrane tube 605 and flows back into the reactor body 100 through the inlet pipe 604. The diameter of the membrane pore 611 of the catalytic membrane tube 605 is between 10nm and 200nm. Another catalyst is loaded in the membrane pore 611. The catalyst is mainly a metal oxide. When the wastewater passes through the membrane pore, ozone, catalyst, and organic matter fully react in the narrow membrane pore to achieve efficient removal of organic matter, and the organic matter in the wastewater can be removed to a low level. A drainage connector 606 is fixedly installed on the side of the top of the cylindrical shell 601. The wastewater passes through the membrane pore, forms oxidation water, enters the annular cavity, and is discharged through the drainage connector 606.

[0071] The top and bottom walls of the cylindrical shell 601 are fixedly installed with an outer clamping ring 607, which is sleeved on the outside of the end of the catalytic membrane tube 605. The top and bottom walls of the cylindrical shell 601 are fixedly installed with a conical hollow cover 608, which is conical and has a through groove array on the side. The conical hollow cover 608 is plugged into the inside of the end of the catalytic membrane tube 605. The outer clamping ring 607 and the conical hollow cover 608 are clamped at the end of the catalytic membrane tube 605 to fix the catalytic membrane tube 605. A connecting rod 609 is fixedly installed between the centers of the two groups of conical hollow covers 608. The surface of the connecting rod 609 is fixed with an inverted cone 610 arrayed along its length direction, and the diameter of the inverted cone 610 gradually increases from bottom to top. The wastewater is guided by the inverted cone 610 to flow to the surface of the catalytic membrane tube 605.

[0072] The pushing assembly 900 includes a rotating tube 901 that is connected to the bottom center of the reactor body 100 through rotation. The rotating tube 901 is sleeved on the outside of the ozone tube 401. The rotating tube 901 is located on the surface of the reactor body 100 and fixedly installed with a spiral blade 902. The spiral blade 902 is attached to the bottom wall of the reactor body 100. The rotating tube 901 is located on the surface of the reactor body 100. The gear 903 is meshed with a gear 904. The gear 904 is rotatably connected to the bottom of the reactor body 100. The motor 905 is fixed at the bottom center of the gear 904. In the process of wastewater and ozone reaction, the insoluble matter docks in the bottom end of the reactor body 100 to form sludge. The motor 905 drives the gear 904 to rotate, drives the gear 903 to rotate, and then drives the rotating tube 901 and the spiral blade 902 assembly to rotate, thereby pushing the sludge downward.

[0073] The sludge discharge assembly 700 includes a sludge discharge pipe 701 fixedly mounted on the side of the bottom end of the reactor body 100, and the sludge pushed by the spiral blade 2 902 enters the inside of the sludge discharge pipe 701. Two groups of annular flanges 702 are fixedly mounted on the outer wall of the sludge discharge pipe 701, and a plurality of filter holes 703 are opened and penetrated in the lower half of the sludge discharge pipe 701 and located between the two groups of annular flanges 702. A rotating shaft 704 is rotatably connected inside the sludge discharge pipe 701, and a spiral blade 1 705 is fixedly mounted on the surface of the rotating shaft 704. The pitch of the spiral blade 1 705 gradually decreases from right to left, and a motor 1 706 is fixedly mounted on the end of the rotating shaft 704. The motor 1 706 drives the assembly of the rotating shaft 704 and the spiral blade 1 705 to rotate, pushing the sludge inside the sludge discharge pipe 701 to move to the left, and the pitch of the spiral blade 1 705 gradually decreases, gradually increasing the pressure on the sludge, squeezing out the water in the sludge, and discharging the water from the filter hole 703.

[0074] The filter assembly 800 includes a water tank 801 fixedly mounted on the outside of the mud discharge pipe 701. The water tank 801 is sleeved on the outside of the two groups of annular flanges 702. The water discharged from the filter holes 703 accumulates inside the water tank 801. A box cover 802 is hinged on the top of the water tank 801. Support seats 803 are fixedly mounted on the tops of both ends of the box cover 802. Two groups of avoidance grooves 804 are opened on the surface of the box cover 802. A filter screen roller 805 is arranged between the two groups of support seats 803. The filter screen on one of the filter screen rollers 805 is released, and the filter screen bypasses the bottom of the mud discharge pipe 701 and is wound on the surface of the other filter screen roller 805. The avoidance groove 804 is used for the filter screen to pass through the box cover 802; the box cover 802 is hinged with the water tank 801, so that the box cover 802 can be opened. It is convenient to bypass the filter screen from the bottom of the mud discharge pipe 701. And the two groups of annular flanges 702 are used to limit the two sides of the filter screen. A return pipe 806 is fixedly installed at the bottom of the water tank 801, and the other end of the return pipe 806 is fixedly installed on the upper surface of the reactor body 100. A water pump 807 is arranged on the return pipe 806. The assembly of the water pump 807 and the return pipe 806 is used to suck the water inside the water tank 801 and transport it to the reactor body 100.

[0075] The left ends of the two groups of filter screen rollers 805 are both fixed with convex strips 808 in an array, and the surface of the left support seat 803 is penetrated with two groups of mounting holes 809, and the two mounting holes 809 are respectively inserted with sleeves 1 810 and sleeves 2 814, which are respectively used to be sleeved on the left ends of the two groups of filter screen rollers 805, and the inner walls of sleeves 1 810 and sleeves 2 814 are both provided with slots corresponding to the convex strips 808 array. After sleeves 1 810 and sleeves 2 814 are sleeved on the left ends of the filter screen rollers 805, they can rotate synchronously with the filter screen rollers 805.

[0076] A slider 811 is fixedly installed on the left end surface of the sleeve 810, and a slide groove 812 is fixedly installed on the surface of the left support seat 803. The slider 811 is slidably connected in the slide groove 812. A spring 813 is fixedly installed between the slider 811 and the inner wall of the slide groove 812. The spring 813 is used to drive the slider 811 to move toward the support seat 803. The slider 811 is limited by the slide groove 812 to inhibit the sleeve 810 from rotating, so that when the sleeve 810 is sleeved on the left end of the filter roller 805, the filter roller 805 is inhibited from rotating.

[0077] A rotating arm 815 is fixedly installed on the left end surface of the second sleeve 814, and an arc groove 816 is provided on the surface of the left support seat 803. A second slider 817 is slidably connected in the arc groove 816. A second spring 818 is fixedly installed between the second slider 817 and the inner wall of the arc groove 816. The second spring 818 is used to drive the second slider 817 to slide backward and upward along the arc groove 816, and the second slider 817 abuts against the front side of the rotating arm 815. The second slider 817 is U-shaped, so that the rotating arm 815 can be stably set in the second slider 817. When the second sleeve 814 is sleeved on the left end of the filter screen roller 805, the second slider 817 can push the rotating arm 815 backward and upward through the elasticity of the second spring 818, so that the filter screen roller 805 has a tendency to rotate clockwise, that is, it has a tendency to wind the filter screen.

[0078] The working principle of the utility model is:

[0079] When in use, the first catalyst is added from the catalyst adding pipe 300 to the inside of the guide funnel 102 through the metering pump, and the wastewater pipe 201 and the water distribution cover 202 add the wastewater to the inside of the guide funnel 102. The wastewater and the first catalyst are mixed in the guide funnel 102 and then enter the inside of the reactor body 100; at the same time, ozone is added to the inside of the reactor body 100 through the micro-nano bubble generator 400, forming a large number of microbubbles flowing from bottom to top, and the wastewater flows from top to bottom, forming convection, so that the ozone and the wastewater are fully in contact and react;

[0080] The wastewater is sucked from the lower part of the reactor body 100 by the circulation pump 603 in cooperation with the drainage pipe 602, and transported into the interior of the cylindrical shell 601. Under the guidance of the inverted cone 610, the wastewater flows toward the catalytic membrane tube 605, reacts with the second catalyst 612 in the membrane pores of the catalytic membrane tube 605, forms oxidized water, and is discharged through the drainage joint 606; part of the wastewater directly passes through the middle of the catalytic membrane tube 605, and flows back into the interior of the reactor body 100 through the water inlet pipe 604;

[0081] The motor 2 905 drives the gear 2 904 to rotate, which drives the gear 1 903 to rotate, and then drives the assembly of the rotating tube 901 and the spiral blade 2 902 to rotate, pushing the sludge inside the reactor body 100 downward, so that the sludge enters the sludge discharge pipe 701; then the motor 1 706 drives the assembly of the rotating shaft 704 and the spiral blade 1 705 to rotate, pushing the sludge inside the sludge discharge pipe 701 to the left, and during the movement of the sludge, the pressure exerted by the spiral blade 1 705 on the sludge gradually increases, so that the water inside the sludge is squeezed out, and the water is filtered through the filter screen released by the filter screen roller 805, and then enters the water storage tank 801. Finally, the water inside the water storage tank 801 is sucked into the reactor body 100 through the cooperation of the reflux pipe 806 and the water pump 807.

[0082] The reactor body 100 provides a stable reaction environment for the full reaction between wastewater, catalyst suspension and ozone; the wastewater adding component 200 is used to add wastewater to be treated; the catalyst adding pipe 300 is used to add catalyst suspension; the micro-nano bubble generator 400 is used to fully mix the wastewater to be treated with ozone; the catalyst suspension and ozone in the reactor body fully react with the wastewater, so that the organic matter in the wastewater is reduced from a high level to a lower level, and the ozone catalytic oxidation has a higher utilization rate; the membrane catalyst component 600 provides another reaction site for the treatment of wastewater, and the catalytic activity of the second catalyst 612 in the membrane catalyst component Hydroxyl radicals are generated under the action of the membrane pores 611, and are fully in contact with organic matter, reducing the wastewater entering the reactor body after treatment from a lower level to an even lower level, thereby improving the utilization rate of hydroxyl radicals; the wastewater to be treated enters from the wastewater addition component 200 on the upper part of the reactor body, and is counter-mixed with the ozone at the micro-nano bubble generator 400, and is sucked by the circulation pump 603 in the membrane catalytic component. The wastewater to be treated flows from top to bottom, and a part of it finally enters the membrane pores and flows out as produced water, and the other part flows back to the reactor body to continue the reaction, and promotes turbulence of the fluid in the reactor, thereby improving the adequacy of the mixing reaction.

[0083] The wastewater pipe 201 is used to deliver wastewater; the water distribution cover 202 is used to evenly sprinkle the delivered wastewater into the reactor body 100; the guide funnel 102 is used to better guide the wastewater evenly distributed by the water distribution cover to a more suitable position in the reactor body; the catalyst addition pipe 300 is connected to the guide funnel 102 to deliver the catalyst suspension into the evenly distributed wastewater, so that the catalyst suspension and the evenly distributed wastewater are better guided to the appropriate position in the reactor body under the guidance of the guide funnel, and the catalytic oxidation reaction occurs after being more fully mixed with ozone; the metering pump can accurately control the catalyst entering the reactor body. The amount of the added catalyst suspension is reduced, thereby ensuring that the entire catalytic oxidation reaction proceeds more fully; the nanocarbon has a large specific surface area, and the first catalyst is loaded on the nanocarbon, which can adsorb organic matter in the wastewater to the catalyst surface for reaction. When the ozone in the water body is converted into hydroxyl radicals under the action of the nanocarbon surface catalyst, on the one hand, it can quickly and efficiently react with the adsorbed organic matter, and on the other hand, it can also react with the organic matter in the water body; the catalyst suspension can also be directly and evenly distributed in the reactor body and mixed with the wastewater after distribution, expanding the scope of the catalytic reaction and making the entire reactor body a reaction zone.

[0084] The ozone tube 401 is used to guide the ozone from the external ozone source into the reactor body 100; the ozone enters the reactor body from the bottom of the reactor body through the generator body 402, and a large number of micro-nano bubbles are generated under the action of the generator body, which increases the solubility of ozone in the wastewater on the one hand, and slows down the rising rate of the ozone gas on the other hand, thereby improving the utilization rate of ozone and increasing the wastewater treatment capacity of the reactor body; the cylindrical shell 601 provides an installation space for the catalytic membrane tube 605, through a stable second reaction place; the drain pipe 602 is used to drain the initial reactor body The wastewater after the first step of the reaction is guided into the catalytic membrane tube for re-reaction treatment; the circulation pump 603 provides power for the wastewater after the initial reaction in the reactor body to enter the catalytic membrane tube for re-reaction; the water inlet pipe 604 is used to guide the flowing water in the membrane tube of the catalytic membrane tube into the reactor body for further treatment; the catalytic membrane tube 605 can well re-react the incoming water in the reactor body; the circulating water enters through the membrane tube of the catalytic membrane tube, part of the circulating water flows out from the membrane tube, and part of the circulating water flows out from the membrane hole 611, and the water flowing out from the membrane hole is the oxidation water; when the wastewater passes through the membrane hole, Ozone, the second catalyst and organic matter fully react in the narrow membrane pores to achieve efficient removal of organic matter, and can remove organic matter in wastewater to a lower level; the limited membrane pore size can make ozone, the second catalyst and organic matter react more fully in the narrow membrane pores; the metal oxide catalyst can be stably loaded in the membrane pores, and can better undergo a sufficient catalytic oxidation reaction with ozone and organic matter in the narrow membrane pores; the outer clamp ring 607 can ensure the stability of the catalytic membrane tube working in the cylindrical shell; the conical hollow cover 608 can, on the one hand, assist in limiting the catalytic membrane tube 605 working in the cylindrical shell 601 On the one hand, it can ensure the stability of operation, and on the other hand, it can make the wastewater in the membrane tube smoothly enter the water inlet pipe from the hollow part; the connecting rod 609 provides a stable installation position for the several inverted cones 610, ensuring the stability of the operation of the several inverted cones; the several inverted cones are used to better and directly guide the incoming water after the first treatment of the reactor body to the catalytic membrane tube for secondary treatment; the inverted cone structure with a gradually increasing diameter from bottom to top is adapted to the water flow direction in the catalytic membrane tube, and can better guide the water flow in the catalytic membrane tube; the drain joint 606 can discharge the qualified oxidized water after the secondary treatment of the catalytic membrane tube.

[0085] The tail gas pipe 500 is used to discharge the ozone tail gas that does not participate in the reaction; the tail gas destroyer is used to heat up and quickly decompose the ozone into oxygen and discharge it into the atmosphere; the connectors 101 located at the upper and lower parts of the reactor body 100 are used to connect with the water inlet pipe 604 and the drain pipe 602 of the membrane catalytic assembly 600 to form a circulation between the membrane catalytic assembly 600 and the reactor body; the generator body is located below the connector at the lower part of the reactor body, so that the ozone at the generator body 402 can better enter the catalytic membrane tube 605 under the action of the circulation pump 603; a number of blocking parts 103 can change the fluid morphology at the inner wall of the reactor body from laminar flow to turbulent flow, thereby enhancing the mixing effect; the upward flow generated by the micro-nano bubble generator 400, the suction and reflux of the circulation pump 603 and the blocking part of the reactor body work together to fully mix the fluid in the reactor body, slow down the rising speed of ozone, and enhance the ozone catalytic oxidation effect; the blocking block or blocking ring is easy to prepare and can also well change the reaction The fluid form at the inner wall of the reactor body changes from laminar flow to turbulent flow; the sludge discharge component 700 is used to discharge the insoluble matter that may be produced during the organic matter reaction from the reactor body; the sludge discharge pipe 701 is used to discharge the insoluble matter in the reactor body 100; the multiple filter holes 703 are used to compress and squeeze out the water in the insoluble matter when discharging the insoluble matter, so as to ensure that the insoluble sludge discharged from the sludge discharge pipe is in a relatively low-water state; the two annular flanges 702 are used to limit the setting positions of the multiple filter holes on the sludge discharge pipe to ensure a better dehydration effect on the insoluble matter; the motor 706 provides power for the insoluble matter to be discharged from the reactor body; the rotating shaft 704 drives the spiral blade 705 to rotate, and the insoluble sludge in the reactor body is smoothly transported and discharged to the mud outlet of the sludge discharge pipe; the specific pitch of the spiral blade 1 is set to ensure that the insoluble sludge in the reactor body is smoothly transported and discharged to the mud outlet of the sludge discharge pipe, while being able to squeeze and dehydrate the insoluble sludge therein well.

[0086] The filter assembly 800 can filter the water discharged from the filter hole 703 well, and prevent the insoluble sludge from being discharged from the filter hole; the water storage tank 801 is used to uniformly store the water filtered at the filter hole; the box cover 802 hinged on the top of the water storage tank can prevent external debris from falling into the water storage tank; the two support seats 803 are used to support the filter roller 805 and other components; the two avoidance grooves 804 are used for the filter net to pass through after winding; the two filter rollers are used to connect the two ends of the filter net, and the degree of closeness of the filter net relative to the mud discharge pipe 701 can be adjusted; the filter net can filter the squeezed water passing through the filter hole 703 well; the reflux pipe 806 is used to guide the filtered water in the water storage tank back into the reactor body 100 for further treatment and reuse; the water pump 807 provides power for sending the filtered water in the water storage tank into the reactor body; the cooperation of the convex strip 808 and the card slot 819 can make the two The filter screen roller 805 can be well confined in the sleeve one 810 and the sleeve two 814 in a manner as required; the two mounting holes 809 provide movable mounting positions for the sleeve one and the sleeve two on the support seat 803; the sleeve one and the sleeve two can well confine the two filter screen rollers on the support seat in a manner as required; the slide groove 812 can well limit the horizontal and appropriate movement of the slider one 811; the cooperation of the slider one 811, the slide groove 812 and the spring one 813 enables the filter screen roller at one part of the sleeve to be flexibly adjusted left and right as required, so that the filter screen can fit well in the mud discharge pipe, ensuring the smooth progress of the entire filtering work; the arc groove 816 provides guidance for the movement of the slider two 817; the arc groove 816, the slider two 817, the spring two 818 and the rotating arm 815 cooperate as a whole, so that the filter screen can fit well in the mud discharge pipe 701, ensuring the smooth progress of the entire filtering work.

[0087] The pushing assembly 900 is used to deliver the insoluble sludge in the reactor body 100 to the spiral blade 1 705 of the sludge discharge pipe 701, so as to ensure that the insoluble sludge in the reactor body can be discharged smoothly from the sludge discharge pipe; wherein the rotating shaft 704 and the spiral blade 1 705 extend into the reactor body together; the rotating tube 901 drives the spiral blade 2 902 to rotate together, so as to smoothly deliver the insoluble sludge in the reactor body to the entrance of the sludge discharge pipe 701; the gear 1 903 is used to receive the driving force so that the rotating tube rotates; the motor 2 905 provides a stable driving force for the rotation of the rotating tube; the gear 2 904 is used to stably transmit the driving force of the motor 2 to the gear 1.

[0088] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A membrane catalytic ozone oxidation reactor, characterized in that: The invention comprises a reactor body (100), wherein a wastewater addition component (200) and a catalyst addition pipe (300) are respectively arranged on the upper side of the reactor body (100); a micro-nano bubble generator (400) is arranged on the bottom of the reactor body (100), and the micro-nano bubble generator (400) is connected to an ozone source; and at least one membrane catalyst component (600) is connected to the reactor body (100) in a closed loop.

2. The membrane catalytic ozone oxidation reactor according to claim 1, characterized in that: The wastewater addition assembly (200) comprises a wastewater pipe (201), the wastewater pipe (201) being arranged in communication with the upper part of the reactor body (100), and a water distribution cover (202) being provided at one end of the wastewater pipe (201) located inside the reactor body (100).

3. The membrane catalytic ozone oxidation reactor according to claim 1, characterized in that: The micro-nano bubble generator (400) comprises an ozone tube (401), the ozone tube (401) being connected to the bottom of a reactor body (100), one end of the ozone tube (401) located inside the reactor body (100) being provided with a generator body (402), and one end of the ozone tube (401) located outside the reactor body (100) being connected to an ozone source.

4. The membrane catalytic ozone oxidation reactor according to claim 1, characterized in that: The membrane catalytic assembly (600) comprises a cylindrical shell (601), the lower end of the cylindrical shell (601) is connected to a drain pipe (602), and the end of the drain pipe (602) away from the cylindrical shell (601) is connected to the lower part of the reactor body (100); a circulation pump (603) is provided on the drain pipe (602); the upper end of the cylindrical shell (601) is connected to a water inlet pipe (604), and the end of the water inlet pipe (604) away from the cylindrical shell (601) is connected to the upper part of the reactor body (100); a catalytic membrane tube (605) is provided inside the cylindrical shell (601), and the space between the outer wall of the catalytic membrane tube (605) and the inner wall of the cylindrical shell (601) forms an annular cavity; the membrane pores (611) of the catalytic membrane tube (605) are loaded with a second catalyst (612).

5. The membrane catalytic ozone oxidation reactor according to claim 4 is characterized in that: The pore size of the membrane pore (611) is 10 nm to 200 nm.

6. The membrane catalytic ozone oxidation reactor according to claim 4 is characterized in that: The upper portion of the cylindrical shell (601) is connected to a drainage joint (606).

7. The membrane catalytic ozone oxidation reactor according to claim 1 is characterized in that: The top of the reactor body (100) is connected to a tail gas pipe (500), and one end of the tail gas pipe (500) away from the reactor body (100) is connected to a tail gas destroyer.

8. The membrane catalytic ozone oxidation reactor according to claim 4 is characterized in that: The upper and lower parts of the reactor body (100) are both provided with connectors (101); the connector (101) on the upper part of the reactor body (100) is connected to an end of the water inlet pipe (604) away from the cylindrical shell (601); and the connector (101) on the lower part of the reactor body (100) is connected to an end of the drain pipe (602) away from the cylindrical shell (601).

9. The membrane catalytic ozone oxidation reactor according to claim 1, characterized in that: The inner wall of the reactor body (100) is provided with a plurality of blocking portions (103) from top to bottom.

10. The membrane catalytic ozone oxidation reactor according to claim 9, characterized in that: The blocking portion (103) is a blocking block or a blocking ring.

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