20results about How to "Improve ozone utilization" patented technology

The invention provides a system and a method for treating coexisting new pollutants in drinking water, and the system and the method are characterized in that firstly, ozone microbubble water with small volume and large specific surface area and magnetized superfine activated carbon are used for carrying out oxidation treatment on the coexisting new pollutants and adsorbing pollutants with small molecular weight and relatively high activity; the purpose of removing part of new pollutants is achieved; then, under the irradiation of an ultraviolet lamp tube, the reducing agent catalyzes sulfite to generate reducing free radicals such as hydration electrons [eaq-],. H and SO3., and under the substitution action of iodide ions, reductive dehalogenation and iodine substitution reaction of the halogenated organic matter difficult to degrade are achieved, and reduction removal of new pollutants difficult to degrade is achieved. The system is simple and compact in structure, is a treatment device integrating filtration, oxidation, adsorption and reduction, reduces the occupied area, can realize effective removal of coexisting new pollutants with different molecular characteristics and different reaction activities through multiple actions of physical interception, oxidation, adsorption, reduction and the like, and has a wide application prospect.

The utility model relates to a catalytic ozonation plate-type catalyst, which comprises a catalyst plate, a partition plate and a breathable membrane, ozone and wastewater are effectively separated through the plate-type catalyst plate, the breathable membrane and the partition plate, and the loss of ozone caused by impurities in wastewater is reduced; and gas and liquid (ozone-wastewater) two-phase mass transfer and diffusion are further enhanced. Moreover, a catalytic area and an ozone area formed by tightly attaching the catalyst plate, the breathable membrane and the partition plate have the characteristics of large area and small thickness, and wastewater forms a flowing liquid membrane on the surface of the catalyst, so that ozone can be in contact with the catalyst plate and the wastewater liquid membrane at the first time to perform catalytic oxidation reaction after penetrating through the breathable membrane; the ozone catalytic oxidation confinement reaction is realized, the gas-liquid-solid three-phase contact is effectively improved, the removal efficiency of refractory substances is remarkably improved, and the ozone utilization rate is remarkably increased.

The utility model relates to a system for treating sludge drying flue gas based on hydrodynamic cavitation. The system comprises cyclone dust removal equipment, a centrifugal fan, spray washing equipment, hydrodynamic cavitation equipment, a gas-liquid separator and an activated carbon adsorber which are connected in sequence, one end, far away from the spraying and washing equipment, of the liquid discharging pipeline is connected with the water tank, an inlet of the filtering equipment is provided with a first pipeline connected with the water tank, an outlet of the filtering equipment is provided with a second pipeline connected with the reaction liquid storage tank, and an outlet of the reaction liquid storage tank is provided with a third pipeline; a delivery pump is arranged at one end, far away from the reaction liquid storage tank, of the third pipeline, a fourth pipeline connected with the hydrodynamic cavitation equipment is arranged at an outlet of the delivery pump, and the ozone generator is connected with the fourth pipeline through a fifth pipeline. The ozone is coupled in the hydrodynamic cavitation section, so that the mass transfer effect of the ozone can be enhanced, the oxidation effect of the ozone is further enhanced, and the effects of short reaction period, high stability, low cost and high efficiency are achieved.

The present application belongs to the field of wastewater advanced oxidation treatment technology, and proposes a wastewater treatment device with ozone oxidation and hydraulic cavitation synergistic effect. A primary Venturi tube, a ring air guide structure, a ring gap and a gas-liquid initial mixing section are arranged. The hydraulic cavitation is realized through the primary Venturi tube, the cavitation bubbles formed are extended to the downstream along the expansion section, and the synergistic effect with the ozone entering through the ring gap is realized. In the extreme environment generated by the collapse of the cavitation bubbles, the dissolution of the ozone gas into the liquid and the generation of the hydroxyl radicals are promoted. To some extent, the dependence on the pressure gas source is reduced, and the energy consumption is reduced. The gas phase is preliminarily dispersed before entering the secondary Venturi tube, the uniformity of the gas-liquid in the flow space is realized to the maximum extent, and the choked flow is easy to form. On the one hand, the bubbles can be further micronized, and the mass transfer is strengthened. At the same time, the gas-liquid interface changes sharply in the process of bubble micronization, which is also beneficial to the efficient generation of the hydroxyl radicals, so as to further improve the wastewater treatment efficiency.

The application discloses an ozone micro-nano bubble coupling ultraviolet oxidation wastewater treatment process, which comprises the following steps: filtered wastewater is pumped by a booster pump, and then sequentially passes through a micro-nano bubble jet device connected with an ozone generator and a flow-through ultraviolet lamp, and finally enters an oxidation contact tank; the wastewater in the oxidation contact tank is continuously circulated by the wastewater booster pump, and treated wastewater is discharged after COD reaches a standard. The ozone micro-nano bubble coupling ultraviolet oxidation wastewater treatment process has the advantages that the process is used for treating chemical industrial park wastewater by adopting the ozone micro-nano bubble technology coupling ultraviolet jet advanced oxidation process, ozone utilization rate is high, process conditions are mild, and the removal effect of wastewater COD is good, so the process has great potential in the field of wastewater treatment; the ozone micro-nano bubble coupling ultraviolet advanced oxidation process requires less hardware equipment and has low operation cost, so the process has a broad application prospect in the field of engineering wastewater treatment.

The invention relates to a petrochemical biochemical effluent treatment method which comprises the following steps: S1, introducing petrochemical biochemical effluent to be treated into a membrane catalytic ozonation unit for treatment to obtain a first product; s2, the first product water is introduced into a biological activated carbon unit and sequentially flows through an activated carbon catalytic ozonation zone, a biological activated carbon aerobic zone and a biological activated carbon anoxic zone to be treated, and second product water is obtained. The problems of low ozone utilization rate, long treatment process flow, high overall energy consumption and the like in the existing biochemical effluent treatment and recycling process in the petrochemical industry can be solved.

The utility model provides a sewage treatment system integrating ozone catalytic oxidation and magnetic coagulation. The sewage treatment system comprises an oxygen preparation device, an ozone generator device, an ozone adding device, at least one ozone reactor, a coagulation device, a flocculation device and a sediment clarification device which are connected in sequence, the ozone adding device is connected with the at least one ozone reactor through a water inlet pipe, a catalyst adding tank, a tail gas destroying device connected with the at least one ozone reactor and a coagulant adding tank connected with the coagulation device are arranged in the at least one ozone reactor; one end of the precipitation clarification device is connected with the flocculation device through a first pipeline, and the other end of the precipitation clarification device is connected with a magnetic powder recovery system and then discharges sludge. The ozone catalytic oxidation process of the system is high in ozone utilization rate; compared with common coagulating sedimentation, the magnetic coagulation system has the advantage that flocculent bodies can be precipitated more easily.

The utility model relates to the field of sewage treatment equipment, in particular to a solid-liquid-gas three-phase contact reaction tower. The utility model relates to a high-efficiency solid-liquid-gas three-phase contact reaction tower which comprises a tower body, a filler, a perforated aeration disc, a water collecting disc and the like are arranged in the tower body, the tower body is divided into an upper front end aeration area, a middle active carbon filler-ozone main reaction area and a lower water-ozone shower type contact area, and a water inlet pipe and an exhaust pipe are arranged at the top of the tower body. A water outlet pipe and a gas inlet pipe are arranged at the bottom of the tower body, water enters the tower body from the upper water inlet pipe and flows out from the bottom water outlet pipe, ozone enters the tower body from the bottom gas inlet pipe, one part of gas enters the bottom of the tower body again through a backflow pipeline, and the other part is exhausted out of the system through an exhaust valve or connected with a tail gas absorption device; a backflow air pipe, a water intake, a base, supporting legs and the like are arranged outside the tower body.

The invention discloses an ozone catalytic membrane and aeration biological membrane synergistic reaction device which comprises an ozone preparation unit, the ozone preparation unit comprises an oxygen generator and an ozone generator connected with the oxygen generator, and the ozone preparation unit comprises an ozone catalytic membrane reactor and an aeration biological membrane reactor. The reaction process is as follows: a target water body and ozone enter the ozone catalytic membrane reactor, and then enter the aeration bio-membrane reactor for reaction after reaction. According to the invention, bubble-free aeration is carried out by using the ozone catalytic membrane contactor, so that the operation cost required for preparing an ozone source can be utilized to the maximum extent.

This invention discloses a continuous ultrasonic amplification standing wave field-ozone micro-nano bubble synergistic inactivation device for mariculture, comprising a seawater pretreatment unit, an ozone micro-nano bubble generating unit, an ultrasonic amplification standing wave field-ozone micro-nano bubble synergistic inactivation reaction unit, a multi-parameter effluent detection unit, and a closed-loop control unit connected in sequence. The reaction chamber adopts a three-layer coaxial nested configuration of 316L stainless steel. The inner tube wall has a regular polygonal prism structure, while the outer tube wall has a multi-segment continuously circulating "gradually expanding-constant diameter-gradually contracting" irregular tube structure. High- and low-frequency multi-array ultrasonic transducers are correspondingly arranged on the inner and outer wall surfaces to synergistically construct a blind-zone-free gradient amplification standing wave field. This invention achieves efficient and continuous inactivation of pathogenic microorganisms in mariculture water by targeting and enriching pathogenic microorganisms at the acoustic pressure nodes of the standing wave field, concentrating the excitation of multi-frequency resonant cavitation effects at the acoustic pressure antinodes, and coupling ozone micro-nano bubbles to reduce the cavitation threshold and leverage their high oxidizing properties.

The invention belongs to the technical field of catalysts, relates to a titanium-based nanoscale ozonation catalyst, in particular to an ozonation catalyst for advanced treatment of industrial wastewater, and further discloses a preparation method and application of the ozonation catalyst. The titanium-based nanoscale ozone oxidation catalyst comprises the rho-Al2O3 carrier and the NiO-coated TiO2 active component, the multi-metal oxide with aluminum oxide as the carrier has extremely high activity, the wastewater treatment effect is good, recycling is convenient, TiO2 contained in the active component is a catalyst which is widely applied at present, and the titanium-based nanoscale ozone oxidation catalyst is suitable for industrial production. The method plays an important role in sewage treatment and environmental pollution control.

The application discloses a method and device for catalytic leaching of argillaceous uranium ore based on ozone, and relates to the technical field of uranium leaching and reaction equipment. The application utilizes biomass raw materials and iron-based material powder to prepare a magnetic composite material with catalysis-adsorption dual functions through in-situ reduction by high-temperature heat treatment. The slurry of argillaceous uranium ore and the magnetic composite material are mixed in a reactor for reaction. Ozone is introduced through an aeration disc to avoid bubble aggregation, significantly increase the gas-liquid contact area, and improve the ozone utilization rate. A spiral guide plate is arranged in the reactor to effectively prolong the gas-liquid contact time and improve the ozone mass transfer efficiency. A magnetic recovery device is used to recover the magnetic material to ensure the catalyst activity, reduce the catalyst loss rate, and realize efficient catalysis. Through optimization of the reactor structure, the catalyst preparation process and the process flow, the ozone utilization rate and the leaching efficiency of the argillaceous uranium ore are significantly improved, and the catalyst recycling and the recycling of residual gas are realized.

The invention provides an alumina carrier catalyst for ozone advanced oxidation treatment of organic sewage and a preparation method and application thereof, and relates to the field of organic sewage treatment, the alumina carrier catalyst comprises the following basic components by mass: 4-12% of NiO, 3-5% of Mn, 3-6% of Si, and 37-90% of Al2O3; the alumina carrier is modified by a modifier nickel oxide or manganese-containing heteropoly acid, and the modification treatment adopts nickel nitrate with the concentration of 0.1-1.5 mol / l and a mixed suspension impregnation liquid of the nickel nitrate and the manganese-containing heteropoly acid. The catalyst is high in stability and high in catalytic activity, has an excellent catalytic oxidation effect on nonbiodegradable organic sewage, and can improve the ozone utilization rate, realize higher COD removal efficiency and reduce the operation cost.

The invention discloses a magnetic-acoustic combined ozone catalytic oxidation system and method, and relates to the field of sewage treatment. The magnetic-acoustic combined ozone catalytic oxidation system comprises a water inlet pipe, a water distribution system, a reflux water collection system, a sand lifting pipe and a reaction tube; the bottom of the reaction tube is a conical structure; the invention provides a working method of a magnetic-acoustic combined enhanced ozone catalytic oxidation system, through a magnetic field, an acoustic energy converter and a sand lifting and washing system and a pressurized dissolved air system, the pollutants in the sewage are arranged in order, the catalyst regeneration is accelerated, and the utilization rate of ozone is improved.

The invention relates to a high-entropy alloy for catalytic ozonation and an oxide catalyst thereof, the high-entropy alloy and an oxide thereof contain metal elements of Fe, Mn, Cu, Ni, Co, Mo and Ti, the proportion of the high-entropy alloy Fe (33-x) Co15Mn20Cu15Ni12Mo5Tix (x = 0-5) is 33-x: 15: 20: 15: 12: 5: x (x = 0-5), the high-entropy alloy is prepared through a water atomization method, then the high-entropy alloy oxide is prepared through high-temperature activation at 600-1000 DEG C, the activation time is 5-6 h, and the high-entropy alloy oxide is prepared through high-temperature activation. The activated catalyst has the particle size of 60-100 microns, mainly contains oxides such as Fe2O3, CoFe2O4, MnO2, FeTiO3, NiTiO3, CuFe2O4 and Fe2MoO4, is used in the field of advanced treatment of industrial wastewater, can induce ozone to generate more hydroxyl radicals (. OH), and has the advantages of high ozone utilization rate, high COD (Chemical Oxygen Demand) value removal efficiency and lower cost.

The invention aims to disclose an electro-catalytic membrane reactor coupled ozone device for treating organic wastewater and an implementation method thereof. The device comprises an electrolytic bath, a porous conductive carbon membrane assembly, an ozone generator, an aeration system, an ozone tail gas destructor, a water pump and a direct-current power supply, compared with the prior art, wastewater containing ozone and pollutants passes through a porous channel structure in the porous conductive carbon membrane component under the action of negative pressure provided by a water pump, and ozone is subjected to an electrocatalytic reaction under the action of an electric field to generate active substances such as hydroxyl radicals with strong oxidizing property; organic pollutants in water are oxidized and degraded into small molecules or are detoxified or mineralized into carbon dioxide and water, so that efficient removal of organic matters is realized, an electro-catalytic reaction of ozone is limited in holes of the porous conductive carbon membrane assembly, the mass transfer rate of ozone in a solution to the surface of an electrode is increased, and the electrochemical performance of the electrode is improved. And therefore, the pollutant removal effect and the ozone utilization rate are improved, the membrane-making wastewater can be effectively treated, cleanness and no secondary pollution are realized, and the aim of the invention is fulfilled.

This invention relates to the field of wastewater treatment technology, specifically a method for treating high-salt organic wastewater containing polyenes and polyamines. This invention overcomes the problems of high toxicity of polyenes and polyamines, easy complexation with catalysts, and low biochemical efficiency under high-salt conditions in wastewater treatment. First, this invention utilizes copper-supported cross-linked chitosan to achieve specific complexation and sedimentation of macromolecules, significantly reducing toxicity. Then, it uses oxygen-rich vacancy titanium dioxide particle electrodes combined with ultrasound to efficiently break stubborn C-N bonds. Next, bimetallic catalytic ozone completely eliminates residual biotoxicity. Finally, iron-modified biochar provides a salt-resistant microenvironment and electron shuttle effect for salt-tolerant bacteria, achieving deep mineralization and denitrification of pollutants. This effectively solves the biochemical treatment problem under the dual stress of high salt and high toxicity, resulting in stable effluent quality.

The utility model relates to perfluorinated chemical industry technical field especially relates to a kind of equipment for preparing fluorine-containing intermediate by perfluoroolefin ozone cracking, it include: cracking equipment, for perfluoroolefin and oxygen-ozone mixed gas carry out ozonization cracking reaction;Product selective absorption and / or low-temperature condensation recovery equipment, separation equipment and purification equipment;Tail gas absorption, separation and purification equipment.The application improves gas-liquid reaction efficiency by optimizing reactor combination, ozone utilization rate is greatly improved, while the selectivity of reaction is improved, the side reaction is effectively inhibited, thereby reducing the generation of byproduct;By selective absorption and / or low-temperature condensation recovery to reaction product and residual tail gas is further absorbed by low-temperature ethanol, not only reduce the emission of hazardous substances, also effectively improve the yield of product, production process is more environmentally friendly;Adopt low-temperature cracking process, compared with prior art, energy consumption is significantly reduced.

The invention discloses a sewage treatment method and system based on ozone sludge conditioning, and the method comprises the following steps: sequentially carrying out activated sludge process treatment and precipitation treatment on sewage to obtain purified water and activated sludge; at least part of the activated sludge is subjected to ozone conditioning treatment, and a cracking product is obtained; the cracking product is used as a raw material for activated sludge process treatment; the ozone conditioning treatment comprises at least one time of contact treatment of the activated sludge and ozone in an environment with a magnetic field intensity of 5000-7000 Gs and a pressure of 0.5-0.7 MPa. The sewage treatment method based on ozone sludge conditioning provided by the invention has the characteristics of high ozone utilization rate and good sludge reduction effect.

The present invention relates to a carbon-nitrogen doped cerium dioxide / tourmaline ozone oxidation catalyst and its preparation method and application. The catalyst raw materials include iron tourmaline powder, lees and cerium nitrate, wherein the mass percentage of the iron tourmaline powder is 50% to 80%. The catalyst has good catalytic activity, stability and recovery performance through carbon-nitrogen doping and the interaction between cerium dioxide and tourmaline, and is conducive to wide promotion in the field of water treatment.