74 results about "Catalytic ozonation" patented technology

The invention discloses a system and a method for classified sewage treatment, and belongs to the technical field of environmental engineering and water treatment. The system comprises the following components: an intelligent water quality detection module, which is used for real-time and accurate monitoring of COD, BOD, ammonia nitrogen, total phosphorus, suspended matter concentration and heavy metal content; the sectional bioreactor realizes deep removal of nitrogen and phosphorus and efficient biological treatment by flexibly adjusting reaction conditions of each section; the intelligent flocculation control module is used for automatically and accurately adjusting the adding amount of a flocculating agent, and is combined with integrated operation of efficient inclined tube precipitation and sludge concentration, so that the water quality of discharged water is stable, and the medicament consumption is reduced; the ultrafiltration membrane bioreactor effectively removes residual suspended matters and colloids, and ensures that the effluent stably reaches the standard for a long time through the synergistic effect of catalytic ozonation; and the sludge treatment module is used for realizing collaborative optimization management of sludge reduction, recycling and energy recycling.

The invention provides a tandem catalytic ozonation sewage treatment system, and relates to the technical field of sewage treatment. The device comprises a treatment assembly, an aeration assembly, a middle assembly, an injection assembly, a lifting assembly, a knocking assembly and an extrusion assembly, the treatment assembly comprises a lower shell, the upper part of the lower shell is detachably connected with an upper shell, the lower part of the upper shell is fixedly connected with a partition plate, the lower shell is provided with a sewage pipeline, and the upper part of the lower shell is fixedly connected with the partition plate. A barometer is mounted at the upper part of the lower shell; the aeration assembly is arranged at the bottom of the lower shell and is used for injecting ozone gas; the middle assembly is arranged on the outer side of the treatment assembly and is used for temporarily storing the high-pressure ozone. By arranging the lifting assembly and the knocking assembly, the knocking assembly can be driven by ozone pressure to knock the aeration disc, so that impurities attached to the aeration disc are vibrated away and taken away by ozone gas, and the aeration disc is prevented from being blocked due to impurity accumulation.

The invention belongs to the technical field of wastewater treatment, and particularly relates to a catalytic filler, a preparation method and application of the catalytic filler to treatment of organic matters in high-salinity wastewater through electrochemistry and ozone. Wherein the catalytic filler is prepared from the following components in percentage by mass: 5-10% of a carbon-coated high-entropy perovskite composite material, 10-15% of a binder and the balance of a carbon-based carrier; the carbon-coated high-entropy perovskite composite material is formed by compounding lanthanide series high-entropy perovskite oxide and carbon microspheres. The invention also provides a method for treating organic matters in high-salinity wastewater by using the catalytic filler through electrochemistry in cooperation with ozone. The electrochemical reaction and the ozone reaction are combined, a conductive three-dimensional electrode network is constructed by utilizing the catalytic filler, the cathode plate and the anode plate, the synergistic effect of the electrochemical reduction reaction and the catalytic ozonation in the oxidation process is promoted, the degradation of intractable pollutants by the ozone under the assistance of electrochemistry is realized, and intractable organic pollutant molecules are better decomposed.

The invention discloses an efficient treatment process for salt-containing industrial wastewater, and relates to the technical field of wastewater treatment. Salt-containing industrial wastewater sequentially passes through an adjusting tank, a silicon and hardness removal unit, a biochemical unit, a secondary sedimentation tank, a fluorine removal unit, a filter unit, a catalytic ozonation unit, a moving bed bio-membrane reactor treatment unit, a powder carbon sedimentation unit and an ultrafiltration-reverse osmosis double-membrane unit to be treated, produced water is recycled, and concentrated water enters an evaporation and concentration unit; the silicon removal and hardness removal unit is used for treating the wastewater by adding a flocculating agent and a composite coagulant aid; the flocculating agent is a chitosan-based flocculating agent, and the addition amount of the flocculating agent is 10 to 20 mg / L; the composite coagulant aid is composed of a magnesium-aluminum hydrotalcite coagulant aid and alginic acid-silicate hybrid microgel according to the mass ratio of 2: (1-4), and the addition amount of the composite coagulant aid is 5-15 mg / L. The treatment effect of the salt-containing industrial wastewater is remarkably improved.

The invention relates to the field of sewage treatment, and discloses a sewage treatment method based on desulfurization and denitrification, which comprises the following steps: S1, magnetic flocculation-electro-catalysis pretreatment: adding a polyaluminum chloride-magnetic powder composite flocculant into sewage through a magnetic flocculation reactor to form a magnetic floc, removing suspended matters through a permanent magnetic separation device, and then entering an electro-catalysis oxidation pond, carrying out electrolysis by taking titanium-based lead dioxide as an anode and active carbon fiber as a cathode; and S2, performing synchronous desulfurization and denitrification on the three-dimensional electrode fluidized bed, feeding pretreated effluent into a three-dimensional electrode fluidized bed reactor, filling activated carbon particles as a third electrode, and adding a composite flora of thiobacillus and denitrifying bacteria. The efficient removal of sulfides, total nitrogen, total phosphorus and chemical oxygen demand in the sewage is realized through a multi-stage synergistic process of magnetic flocculation-electrocatalysis pretreatment, synchronous desulfurization and denitrification of a three-dimensional electrode fluidized bed, deep denitrification and dephosphorization of a denitrification filter tank and catalytic ozonation-membrane separation combined deep treatment.

The invention discloses a method for purifying water by catalyzing ozonation through a nitrogen-fluorine co-doped carbon-loaded cobalt nanomaterial. Co-ZIF-8 and polytetrafluoroethylene (PTFE) are respectively used as a precursor and a fluorine source, and the nitrogen-fluorine co-doped carbon-loaded cobalt nano-catalyst is successfully prepared through an etching synchronous doping strategy. The composite material can be used for catalyzing ozone to degrade organic pollutants in water. Nitrogen doping can promote formation of a metal-nitrogen coordination structure, and decomposition of ozone on the surface of the catalyst is facilitated. Fluorine modification can significantly enhance the hydrophilicity of the composite material and accelerate the solid-liquid reaction of ozone in a solution and a catalyst interface, and the strong electron withdrawing effect of fluorine can effectively adjust the electronic structure of the catalyst and promote the generation of strong oxidizing active oxygen species, thereby achieving efficient and rapid removal of pollutants. The water treatment method solves the problem of low ozone utilization rate in a conventional catalytic ozonation process, has the advantages of high reaction rate and stable treatment effect, and has a good application prospect.

The utility model relates to the technical field of sewage treatment, in particular to a catalytic ozonation reactor and system for high-salinity wastewater, which comprises a tank body, a water inlet distributor is arranged at the upper part in the tank body, a water inlet pipeline extending out of the tank body is connected onto the water inlet distributor, and a water outlet pipeline extending out of the tank body is connected onto the water inlet pipeline. A breathing opening is formed in the top of the tank body; a water production pipeline and an ozone inlet device are arranged at the bottom of the tank body; a liquid secondary distributor, a catalyst bed and a gas secondary distributor are sequentially and fixedly arranged in the tank body from top to bottom; according to the utility model, incoming water is sprayed out at an included angle of 5-10 degrees with the tangential direction, so that the whole water flow is ensured to flow from top to bottom in a micro internal rotation manner, 'disturbance 'rather than'floating' of a catalyst is ensured to the greatest extent, and rapid reaction is facilitated, thereby greatly improving the COD removal rate on the premise of greatly reducing the investment and energy consumption of the device.

The composite catalytic ozonation reaction tower comprises a tower body, an air outlet is formed in the top of the tower body, a sewage tank is fixedly connected to the interior of the tower body, a cover is fixedly connected to the upper end of the sewage tank, a communicating opening is fixedly connected to the cover, and the communicating opening is communicated with the sewage tank. An electromagnetic valve is arranged on the communicating port, a water inlet pipe is arranged at the left end of the sewage tank, and the water inlet pipe is fixedly connected with the tower body. Through design of the rotating motor, the rotating motor can drive the stirring rod to rotate to stir and mix sewage and an oxidizing agent for reaction, the purpose of sewage treatment is achieved, and in the treatment process, due to the fact that the sewage tank is in a closed state, ozone can stay in the sewage tank for a longer time, and the ozone is prevented from flowing into the sewage tank. And when the air pressure in the sewage tank is too high, the gas can be automatically discharged through the fixed seat, so that the safety is improved.

The utility model relates to a catalytic ozonation tower for advanced treatment of coking wastewater, which comprises an upper tower section and a lower tower section, the top of the lower tower section is detachably communicated with the bottom of the upper tower section, a plurality of partition plates are vertically distributed in the lower tower section at intervals, one end of each partition plate is fixedly connected with the inner side wall of the lower tower section, and a gap is reserved between the other end of each partition plate and the inner side wall of the lower tower section. The fixed ends of every two adjacent partition plates are opposite, an ozone channel is arranged in the fixed end of each partition plate, air inlet pipes are arranged on the left outer side and the right outer side of the lower tower section, the two air inlet pipes are communicated through a conveying pipeline, one end of each ozone channel is communicated with the adjacent air inlet pipe through an air inlet branch pipe, and the other end of each ozone channel is communicated with an aeration head fixedly arranged at the bottom of the corresponding partition plate. Two mesh plates are distributed between the aeration head and the free end of the corresponding partition plate, a catalyst is filled between the two mesh plates, and the bottom of the lower tower section corresponding to the fixed end of the lowermost partition plate is communicated with a water inlet pipe. According to the utility model, multiple aeration mixing and catalytic oxidation of wastewater can be realized, and the overall treatment quality is higher.

The utility model relates to the technical field of industrial wastewater treatment, and discloses a multi-stage catalytic ozonation industrial wastewater treatment device, which is characterized in that a plurality of treatment cavities are arranged in a shell and comprise a first-stage treatment cavity, a second-stage treatment cavity and a third-stage treatment cavity which are respectively positioned below a partition plate I, a partition plate II and a partition plate III. And each partition plate is provided with an overflow pipe and an ozone generator. The multi-stage treatment cavity can realize stage-by-stage treatment of the wastewater, so that ozone is in full contact with pollutants in the wastewater, and the treatment efficiency and the treatment effect are improved. Ozone generators are mounted in all stages of treatment cavities, so that ozone can be uniformly distributed in each treatment stage, and the oxidation reaction is further enhanced. Besides, the arranged on-line monitoring module can monitor key indexes in the wastewater in real time, such as COD (chemical oxygen demand), BOD (biochemical oxygen demand) and pH value, so that accurate control and optimization of the treatment process are realized.

The invention provides a catalyst for heterogeneous catalytic ozonation and a preparation method and application thereof. The method for preparing the catalyst comprises the following steps: providing biomass derived from bamboo; contacting the biomass with a chemical stripping agent and reacting under hydrothermal reaction conditions to strip hemicellulose and lignin from the biomass so as to obtain a stripped biomass; subjecting the exfoliated biomass to a pyrolysis process to obtain a carbon skeleton; and loading a metal on the carbon skeleton to obtain the catalyst. The mechanical strength and stability of the obtained catalyst base material can be improved, and the specific surface area of the catalyst base material can be increased, so that the prepared catalyst has an improved organic matter removal effect.

The utility model belongs to the technical field of treatment devices, and particularly relates to a coking wastewater ozone catalytic oxidation advanced treatment device, which comprises a reaction tower, a catalytic oxidation device, a catalytic oxidation device and a catalytic oxidation device, the ozone generator can guide ozone into the cavity; the driving assembly can apply rotating force into the cavity, so that the catalytic ozonation advanced treatment of the coking wastewater is more uniform; and the collecting assembly is coupled with the driving assembly, the collecting assembly is set to rotate along with the driving assembly and collect floating foam in the cavity, the driving piece is started to drive the first rod to rotate, the first rod drives the third rod to rotate, the third rod drives the plate body to rotate, and the plate body drives the collecting protrusion to rotate; at the moment, the collecting protrusions continuously make contact with the floating foam above the liquid level in the cavity, part of the floating foam is collected between the plate body and the collecting protrusions to be stored, and therefore the influence of the floating foam on the interior of the cavity is reduced.

The invention provides a microbubble internal circulation catalytic ozonation reaction system which comprises an ozone generation unit, a catalytic ozonation unit and a tail gas recovery treatment unit which are connected in sequence, and a wastewater pipeline enters the ozonation unit through a wastewater inlet; the catalytic ozonation unit comprises a reactor main body, a central flow guide descending cylinder, a catalyst module and microbubble distributors, the central flow guide descending cylinder is arranged in the reactor main body, the liquid outlet end of the wastewater pipeline is distributed above the central flow guide descending cylinder, and the microbubble distributors are distributed on the outer side of the bottom of the central flow guide descending cylinder in a surrounding manner; the ozone generator is connected with the ozone generating unit; the catalyst module is arranged in the reactor main body and is distributed between the inner wall of the reactor main body and the central flow guide descending cylinder. An internal circulation flow field is driven by jet flow, micro-bubbles are generated in combination with an aeration technology, and gas-liquid-solid three-phase mass transfer is synergistically enhanced, so that catalytic ozonation degradation of pollutants is realized, the ozone utilization rate is increased, and the problem of traditional aeration blockage is solved.

The application discloses a manganese-cobalt spinel catalyst preparation and application in catalytic ozonation VOCs, belonging to the field of material technology. The application comprises the following steps: manganese salt and cobalt salt are added into water and ultrasonically dissolved, a honeycomb ceramic substrate is grown in the obtained solution, the treated honeycomb ceramic substrate is taken out after the solution becomes light purple; the dipping is repeated for three times; the honeycomb ceramic substrate after the dipping treatment is dried and calcined; the honeycomb ceramic substrate after the calcination is soaked in an acetic acid solution, then the excess solution in the pore is blown away, then the honeycomb ceramic substrate is dipped in a lanthanum salt solution, the excess solution in the pore is blown away after the honeycomb ceramic substrate is taken out, the honeycomb ceramic substrate is dried, and the honeycomb ceramic substrate is calcined again after being heated, so that the manganese-cobalt spinel catalyst is obtained. The manganese-cobalt spinel catalyst prepared by the method has 100% catalytic decomposition activity on toluene, methanol and propylene at room temperature, and has 100% catalytic decomposition activity on ethyl acetate at 53 DEG C. Further simulation of the real environment test results show that the catalytic ozonation decomposition efficiency of the manganese-cobalt spinel catalyst on toluene, xylene and ethyl acetate reaches 100% at room temperature.

The invention relates to an advanced treatment method and system for Maotai-flavor liquor wastewater, and belongs to the technical field of wastewater treatment.The advanced treatment method comprises the steps that S1, primary catalytic ozonation treatment is conducted on liquor wastewater obtained after secondary biochemical treatment, and primary catalytic ozonation effluent is obtained; s2, performing biochemical treatment on the primary catalytic ozonation effluent to obtain biochemical effluent; the biochemical treatment is performed according to the series operation of aerobic reaction, anaerobic reaction and aerobic reaction; s3, carrying out secondary ozone catalytic oxidation treatment on the biochemical effluent; and S4, refluxing the secondary catalytic ozonation effluent, mixing the refluxed secondary catalytic ozonation effluent with the primary catalytic ozonation effluent, and repeating the steps S2 and S3. The advanced treatment method provided by the invention can effectively remove refractory organic matters and various forms of nitrogen in the Maotai-flavor liquor wastewater, has a relatively good removal effect on COD, ammonia nitrogen and total nitrogen in the wastewater, and ensures that various indexes of final discharged water stably reach the standard.

The utility model discloses a novel NCOBR coupling device which comprises catalytic ozonation equipment, an ozone generator is arranged on one side of the catalytic ozonation equipment, a water outlet pipeline is connected to gas-water mixing equipment, and the output end of the gas-water mixing equipment is connected to the bottom of an internal circulation biological aerated filter; comprising a backwashing system, the backwashing system comprises a backwashing air pipeline and a backwashing water pipeline, and the backwashing air pipeline and the backwashing water pipeline are both connected to the ozone catalytic oxidation equipment and the internal circulation biological aerated filter. According to the utility model, ozone is effectively utilized to catalytically oxidize effluent residual oxygen, the oxygen content required by the growth of BAF microorganisms is ensured under the condition of no aeration, effective degradation of COD is realized, and the effluent residual oxygen of the ozone reactor is directly utilized by optimizing the communication mode of the ozone reactor and the BAF, so that the energy waste is reduced, the residual ozone is utilized to supply oxygen, and the energy consumption is reduced. And an oxygen supply mode of traditional BAF aeration is cancelled, so that the investment cost and the operation cost are reduced.

The invention provides a quality-divided collection zero-emission treatment method and system for solar cell wastewater, and belongs to the technical field of advanced treatment and resource utilization of industrial wastewater. Comprising the following steps: sequentially performing filtration and reverse osmosis concentration on dilute acid wastewater; the fluorine-containing wastewater is sequentially subjected to fluorine removal, filtration and reverse osmosis concentration, and obtained concentrated water is subjected to hardness removal, filtration, ion exchange resin hardness removal, electrodialysis and evaporative crystallization to obtain sodium chloride; sequentially carrying out silicon removal, filtration and reverse osmosis concentration on the dilute alkali wastewater; the concentrated alkali wastewater is sequentially subjected to silicon removal, filtration, catalytic ozonation and reverse osmosis concentration, and the obtained concentrated water is sequentially subjected to refractory organic matter removal, silicon removal, filtration and electrodialysis; sequentially removing sulfate radicals and fluorides from the concentrated acid wastewater, and filtering; the acid-nitrogen wastewater is sequentially subjected to filtration, reverse osmosis concentration, sulfate radical and fluoride removal, hardness removal, filtration and nanofiltration, and nanofiltration fresh water is sequentially subjected to fluorine removal, hardness removal, reverse osmosis concentration and evaporative crystallization to obtain calcium nitrate. The conversion from traditional large-water-volume low-concentration mixed treatment to low-flow high-concentration quality-divided wastewater treatment is realized.

The application discloses a kind of iron cobalt oxide catalyst preparation and in catalytic ozonation VOCs application, belong to material technical field.The present application utilizes impregnation calcination method to synthesize this catalyst, including the following steps: a certain proportion of iron salt and cobalt salt are dissolved by water ultrasonic, after salt dissolution, solution becomes brown yellow, honeycomb ceramic is placed in brown yellow solution and is impregnated treatment, blows and removes residual liquid, and is treated by drying;Repeat processing;The treated honeycomb ceramic is calcined, and iron cobalt oxide catalyst is obtained.The catalyst is low in catalytic cost under the action of ozone to low concentration VOCs, compared with traditional method, can be operated at room temperature to realize high removal rate, while realizing low energy consumption, reduce the risk of secondary pollution.

The application discloses a treatment system and method for turbulent catalytic ozone oxidation of wastewater. The treatment system utilizes the strong power provided by water-gas mixing to make the fluid in the intense turbulent motion of swirling and tumbling, improves the gas-liquid-solid contact and mixing behavior, realizes the fluidization of the large-density powder catalyst, promotes the interphase mass transfer, and greatly improves the treatment efficiency of pollutants. The application can fully utilize the catalytic advantages of the ozone catalyst and the strong power provided by water-gas mixing, effectively solve the fluid dynamics inertia of the micron zero-valent iron powder as the ozone catalyst caused by the large density, and enhance the mass transfer between the solid-liquid-gas phases.

The invention discloses a catalytic ozonation reaction device and a use method thereof. The catalytic ozonation reaction device comprises a catalytic ozonation unit, a reduction unit and an ozone secondary utilization unit, the ozone catalytic oxidation unit is an independent first reaction zone, sewage needing to be purified and hydrogen peroxide are input through a first water inlet, circulating water containing ozone is input through a circulating water inlet, liquid caustic soda is added through a liquid caustic soda adding port, and primary tail gas is output to the ozone secondary utilization unit through a first exhaust port. Excessive water is output to the reduction unit through the No.1 water outlet; the reduction unit and the ozone secondary utilization unit are a No.2 reaction zone and a No.3 reaction zone which are arranged in the same box-type reactor and are separated by a partition wall; and the primary tail gas is conveyed to an aerator close to the bottom in the No.3 exhaust port through a gas conveying pipeline, and is dispersed into the water body in the No.3 exhaust port through the aerator. Ozone is efficiently utilized, interference of residual oxidizing agents is eliminated, secondary utilization of ozone tail gas is achieved, and the operation cost is reduced.

A salt-containing sewage treatment parallel system based on a catalytic ozonation process is characterized in that an adjusting tank, a primary bottom settling tank, a micro-nano air floatation tank and diatomite microfiltration equipment are sequentially connected, and the primary bottom settling tank, the micro-nano air floatation tank and the diatomite microfiltration equipment are simultaneously connected with a solid residue collecting tank; a liquid outlet of the diatomite microfiltration equipment is connected with a first aerobic tank, the first aerobic tank is sequentially connected with a first anoxic denitrification tank, a second aerobic tank, a second anoxic denitrification tank and a tail end sedimentation tank, the tail end sedimentation tank is connected with a primary sedimentation tank and MBR membrane filtration equipment, and the first set of system and the second set of system have the same structure; the water outlet end of the MBR membrane filtration equipment is respectively connected with the two ozone reaction tanks; the solid residue collecting tank is connected with the liquid fertilizer manufacturing pool. All indexes in sewage are efficiently treated through the micro-nano aeration system and the microbial agent, reaction between ozone and organic matter is promoted, the oxidation effect is enhanced, and standard discharge of three types of seawater is achieved.

The utility model relates to the technical field of sewage treatment, in particular to a catalytic ozonation advanced treatment device for oil refining sewage, which is used for carrying out two-stage catalytic oxidation treatment on the oil refining sewage, so that the contact area of the oil refining sewage and ozone is larger, and the catalytic oxidation efficiency is improved. Comprising a sewage tank, a sewage pipe, an ozone generator and an oxidation tank, the mixing nozzle is mounted at the bottom of the oxidation tank, the output end of the ozone generator is connected with the input end of the mixing nozzle, the output end of the sewage pipe extends into the mixing nozzle, the conical coaming is mounted at the upper middle part of an oxidation chamber of the oxidation tank, the upper partition plate is mounted on the top wall of the oxidation tank, and the discharge pipe is mounted on the lower middle part of the oxidation chamber. The upper partition plate is located between the outer wall of the conical coaming and the inner wall of the oxidation tank, a gap is formed between the lower edge of the upper partition plate and the bottom of the conical coaming, the discharge pipe is installed on the outer wall of the oxidation tank, and the input end of the discharge pipe extends between the upper partition plate and the oxidation tank and is lower than an upper port of the conical coaming.

The invention relates to the technical field of sludge dewatering, in particular to a refining sludge dewatering method. The method comprises the following steps: 1, continuously adding sludge into a loop reactor filled with a powdered copper oxide catalyst, and carrying out catalytic ozonation treatment; 2, feeding the sludge treated in the step 1 into a conditioning tank I, performing flocculent precipitation, feeding lower-layer settled sludge into a conditioning tank II, fully mixing with powdery activated carbon, and performing centrifugal separation; and 3, conveying the sludge obtained in the step 2 into a vacuum screw extrusion one-step dehydrator, and further intensively dehydrating to finally obtain the sludge. According to the method, the water content of the sludge is reduced, the sludge is reduced, the sludge treatment cost of a sewage treatment plant is reduced, and secondary pollution to the environment is reduced.

The utility model discloses a water distribution device for a catalytic ozonation process, and relates to the technical field of catalytic ozonation processes. Comprising a mortar cushion layer, a filter brick layer, a cobblestone layer and a catalyst layer which are arranged in the catalytic oxidation pond from bottom to top, the filter brick layer is fixed to the bottom of the catalytic oxidation pond through the mortar cushion layer, and the filter brick layer is formed by arranging a plurality of filter bricks; and the filter brick 6 is an S-shaped filter brick. The utility model has the advantages of reasonable structural design and high strength, and has the functions of simultaneously distributing backwashing air and backwashing water, the whole tank body only needs one air distribution pipe, the filter bricks discharge water and air from the top, the water and air distribution density is large, and no backwashing dead angle exists; and the filter bricks are firmly connected and fixed at the bottom of the tank through concrete mortar, so that the filter bricks have no possibility of turning over, and are maintenance-free, good in using effect and high in practicability.

The invention relates to the field of high-purity vanadium ammonia-nitrogen wastewater treatment, and discloses a reverse osmosis-catalytic ozonation combined treatment method for high-purity vanadium ammonia-nitrogen wastewater. The method comprises a reverse osmosis treatment step and a catalytic ozonation treatment step, and a catalyst adopted in the catalytic ozonation treatment step comprises the following components in parts by weight: 1-2 parts of metal oxide; 40-60 parts of activated carbon; 0.5-1 part of an adhesive; the metal oxide is an oxide containing copper, cobalt, manganese, hafnium and lanthanum elements. Through a combined treatment method of reverse osmosis and catalytic ozonation, cooperative treatment of the high-purity vanadium ammonia nitrogen wastewater is realized, and the problem that pollutants are not thoroughly removed in the traditional technology is solved.

The invention discloses an integrated electro-catalytic ozonization medical sewage treatment device which comprises an equipment support, a preprocessor and three sewage treatment tanks, the preprocessor is arranged on the right side of the equipment support and connected with the equipment support, and the three sewage treatment tanks are arranged on the equipment support at intervals. Integrated sewage treatment structures are mounted on the three sewage treatment tanks, the pretreater is connected with the three sewage treatment tanks through an adjustable pipeline conveying structure, and ozone supply structures are arranged behind the three sewage treatment tanks; the invention relates to the technical field of medical sewage treatment equipment, and has the beneficial effects that the problems that most of existing medical sewage treatment devices are complex in structure, large in occupied area, low in integration degree and poor in synergism among treatment units, so that the treatment efficiency is not high, and the treatment cost is low are solved; the requirements of modern medical facilities on high efficiency, convenience and environmental protection of sewage treatment are difficult to meet.

The utility model discloses a steel catalytic ozonation contact reaction tank, and belongs to the technical field of catalytic ozonation. The reaction tank comprises a bottom plate, a side wall plate, a first stiffening rib, a first ozone contact chamber and a first ozone reaction chamber, wherein the bottom plate is used for being fixed with equipment; the side wall plate is fixedly arranged at the top end of the bottom plate; the first stiffening rib is fixedly arranged at the top end of the side wall plate; and two first stiffening ribs and two second stiffening ribs are arranged in the second ozone contact chamber and the second ozone reaction chamber. The steel catalytic ozonation contact reaction tank is suitable for treating degradation-resistant organic wastewater with the water amount larger than 10 m < 3 > / h and smaller than or equal to 100 m < 3 > / h, the whole tank is made of a steel structure, corrosion resistance is high, meanwhile, by arranging the ozone distribution device, wastewater and ozone flow reversely and are fully mixed and contacted with an ozone catalyst after being distributed, and the treatment effect is good. The catalytic ozonation reaction efficiency is improved.

The utility model relates to the technical field of sewage treatment, and discloses a sewage treatment device which comprises a reactor, an overflow plate is arranged in the reactor, one end of the overflow plate is installed at the bottom of the reactor, and the other end of the overflow plate extends towards the top of the reactor. The reactor is divided into a first cavity and a second cavity through the overflow plate, and an electrode assembly is arranged in the first cavity; the ozone oxidation assembly comprises an ozone reaction tank, an ozone generator and a first jet device, a water inlet of the ozone reaction tank is communicated with the second cavity, a water outlet of the ozone reaction tank is communicated with the first cavity, and the inlet end and the outlet end of the first jet device are both communicated with the ozone reaction tank; and the ozone generator is communicated with the inlet end of the first jet device. According to the utility model, an electrode technology and a catalytic ozonation technology are coupled in the same sewage treatment device, so that efficient degradation treatment on pollutants is realized, and the utilization rate of ozone is improved.

The utility model belongs to the technical field of sewage treatment, and particularly relates to a catalytic ozonation sewage treatment device which comprises a bin body capable of accommodating sewage to be treated and providing a catalytic oxidation reaction environment for the sewage, and an adjusting assembly capable of flexibly adjusting the volume of the sewage retained in the device is arranged in the bin body. And gas injection components capable of enabling ozone for treating the sewage to be fully contacted with the sewage in the device are arranged in the bin body and behind the bin body. According to the sewage treatment device disclosed by the utility model, the accumulation height of sewage in the bin body can be conveniently adjusted in a manner of adjusting the height of the drainage piece through the operated driving piece, so that the retention time of the sewage in the device can be adjusted, and the device can ensure that the sewage can fully react with ozone while keeping relatively high sewage treatment efficiency; by arranging the gas injection assembly, ozone injected into the device can fully react with sewage, and waste is avoided.

The utility model discloses a combined treatment device for semi-coke wastewater, which comprises a pretreatment module, a two-stage biochemical module and an advanced oxidation module which are arranged in sequence, and a backwashing module is arranged on the advanced oxidation module; the two-stage biochemical module comprises a first-stage anaerobic tank, a first-stage aerobic tank and a first-stage sedimentation tank which are sequentially connected, a first-stage reflux pipeline is arranged on the first-stage sedimentation tank and connected to the first-stage anaerobic tank, and the output end of the first-stage sedimentation tank is connected with a second-stage anaerobic tank, a second-stage aerobic tank and a second-stage sedimentation tank which are sequentially arranged; a second-stage reflux pipeline is arranged on the second-stage sedimentation tank and is connected to the second-stage anaerobic tank; the advanced oxidation module comprises a catalytic ozonation device and an internal circulation biological aerated filter, and an ozone generator is arranged on one side of the catalytic ozonation device. According to the semi-coke wastewater treatment device, the biodegradability of semi-coke wastewater is improved, the property of the semi-coke wastewater is changed, and a good foundation is laid for subsequent operation through the stage.