CN113233571A - Oscillating cavitation jet fluidized bed catalytic oxidation effluent treatment plant - Google Patents
Oscillating cavitation jet fluidized bed catalytic oxidation effluent treatment plant Download PDFInfo
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- CN113233571A CN113233571A CN202110222694.3A CN202110222694A CN113233571A CN 113233571 A CN113233571 A CN 113233571A CN 202110222694 A CN202110222694 A CN 202110222694A CN 113233571 A CN113233571 A CN 113233571A
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- fluidized bed
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention relates to a device for treating wastewater by catalytic oxidation of an oscillating cavitation jet fluidized bed. The invention has the advantages of high oxidant utilization rate, low energy consumption, low operating cost, simple operation and control and no secondary pollution. A kind of oscillating cavitation jet fluidized bed catalytic oxidation waste water treatment facilities, including the casing made up of leading conduit, choke ring, fluidized bed casing, grating, buffer connector, back conduit connected sequentially, there are breather pipes in the sealed casing, the upper end of breather pipe couples to intake pipe set up on buffer connector, the lower end of breather pipe couples to ceramic of toper micropore through the shuttle-shaped connecting ring set up in leading conduit, there are check valves and compression springs in the shuttle-shaped connecting ring, the absorption chamber formed between outer wall and leading conduit inner wall of upper portion of choke ring, shuttle-shaped connecting ring and breather pipe outer wall and leading conduit inner wall is filled with the microbubble and adsorbed the ball; catalyst carrier filler is filled in the fluidized bed shell.
Description
Technical Field
The invention relates to a device for treating waste water by catalytic oxidation of an oscillating cavitation jet fluidized bed, belonging to a device for treating organic waste water difficult to degrade.
Background
The treatment of the organic wastewater difficult to degrade is the key point of water treatment in the present stage of China, and the development of an economic and effective novel treatment technology has great significance. At present, because the refractory organic wastewater has high toxicity and poor biodegradability, the traditional biochemical method cannot fundamentally remove pollutants in the refractory wastewater, so that chemical methods such as oxidation-reduction, chemical coagulation and the like and physical methods such as membrane treatment, adsorption, air flotation and the like are often selected. The methods have simple equipment and mature technology, but can not completely decompose and remove the organic pollutants difficult to degrade, only change the position and the existing state of the pollutants, and easily cause secondary pollution to the environment. The latest treatment technologies of refractory organic wastewater can be classified into three categories, namely catalytic oxidation technology, improved microbial treatment technology and biological carbon adsorption technology, the effect of the technologies on treating refractory organic wastewater is improved, but some technical problems which need to be solved urgently exist: the catalytic oxidation technology has the problems of high oxidant stability, high oxidant manufacturing cost, difficult recovery and the like; the improved microorganism treatment technology has the problems of high production cost of microorganism carriers, long time consumption for domestication and improvement of microorganisms, great difficulty in operation and control and the like; the biological carbon adsorption technology still has the problems of poor adsorption performance, high cost and the like. In addition, the hydrodynamic cavitation generating device needs to make the fluid flow through a small hole or a fine gap, solid phase particles in the sewage are easy to block at the small hole or the fine gap, and the stable operation of the cavitation generating device is difficult to ensure, which is also a problem to be solved.
Disclosure of Invention
Aiming at the problems, the invention provides the device for treating the wastewater by catalytic oxidation of the oscillating cavitation jet fluidized bed, which has the advantages of high oxidant utilization rate, low energy consumption, low operating cost, simple operation and control and no secondary pollution.
In order to achieve the purpose, the invention adopts the following technical scheme: a kind of oscillating cavitation jet fluidized bed catalytic oxidation waste water treatment facilities, including the casing made up of leading conduit, choke ring, fluidized bed casing, grating, buffer connector, back conduit connected sequentially, there are breather pipes in the sealed casing, the upper end of breather pipe couples to intake pipe set up on buffer connector, the lower end of breather pipe couples to ceramic of toper micropore through the shuttle-shaped connecting ring set up in leading conduit, there are check valves and compression springs in the shuttle-shaped connecting ring, the absorption chamber formed between outer wall and leading conduit inner wall of upper portion of choke ring, shuttle-shaped connecting ring and breather pipe outer wall and leading conduit inner wall is filled with the microbubble and adsorbed the ball; catalyst carrier filler is filled in the fluidized bed shell.
As a further improvement of the invention, the outer surface of the lower part of the fusiform connecting ring is coplanar with the outer surface of the conical microporous ceramic, and the generatrix of the outer surface of the fusiform connecting ring is parallel to the generatrix of the inner surface of the cone of the front conduit.
As a further improvement of the invention, the lower end of the fusiform connecting ring is bonded with the conical microporous ceramic by 502 glue, and the upper end of the fusiform connecting ring is connected with the vent pipe through threads.
As a further improvement of the invention, the filling volume of the microbubble adsorption ball accounts for 1/4-1/3 of the total volume of the adsorption chamber.
As a further improvement of the invention, the microbubble adsorption ball is a glass steel ball with a frosted surface, the diameter of the glass steel ball is 12mm, and the haze value is 30-50%.
As a further improvement of the invention, the inner hole wall of the throttle ring is 45 degrees from the axis, the outer wall of the vent pipe is provided with an annular bulge at the position corresponding to the inner hole of the throttle ring, the outer wall of the bulge is 45 degrees from the axis, and the outer wall of the bulge and the inner hole wall of the throttle ring form an annular gap with the width of 0.5-1mm, the upper part is large and the lower part is small.
As a further improvement of the invention, the vent pipe is connected to the buffer connecting body through an elastic fixing ring and a screw.
As a further improvement of the invention, the cavity in the fluidized bed shell is a fluidized bed reaction chamber, the upper half part of the fluidized bed reaction chamber is a cylinder, and the lower half part of the fluidized bed reaction chamber is a round table with a small lower part and a big upper part; the ratio of the height of the cylinder to the diameter of the bottom surface is 1.2-2.0, and an acute angle formed by a generatrix of the circular truncated cone and the vertical direction is 20-25 degrees.
As a further improvement of the invention, the ratio of the apparent volume of the catalyst carrier filler to the volume of the fluidized bed reaction chamber is 1/4-1/2.
As a further improvement of the inventionThe catalyst carrier filler is a porous medium sphere with the diameter of 3-5mm and the specific gravity of 1.2-1.5 multiplied by 103kg/m3Apparent density of 4-6X 103kg/m3The wear rate is less than 1.5 percent, and the surface area to volume ratio is more than 5000m2/m3。
Advantageous effects of the invention
The invention realizes the treatment of the organic wastewater difficult to degrade by a gas core generating system and a cavitation jet fluidized bed system, wherein the gas core generating system consists of an air inlet pipe, an air vent pipe, a check valve, a compression spring, a fusiform connecting ring, conical microporous ceramics and an elastic fixed ring core; the cavitation jet fluidized bed system consists of a front guide pipe, a micro-bubble adsorption ball, a throttling ring, a fluidized bed shell, a grid, a buffering connector and a rear guide pipe system. Compared with the prior art, the advantages of the invention are specifically illustrated as follows:
1. the process effect is as follows: the invention introduces oxidizing gas through the vent pipe, generates micro bubbles through the tapered microporous ceramic, the micro bubbles enter the adsorption chamber along with water flow, a plurality of micro bubble adsorption balls are filled in the adsorption chamber, the micro bubble adsorption balls can adsorb micro bubbles and fine particles (colloid particles) in the wastewater, the probability of the micro bubbles adsorbing the surfaces of macromolecular colloid substances which are difficult to degrade in the wastewater is increased, and the adsorbed fine particles and the micro bubbles are separated on the surfaces of the adsorption balls, which are back to the incoming flow direction, along with the separation of a flow boundary layer; meanwhile, the microbubble adsorption balls fill the volume of the adsorption chambers of 1/4-1/3, so that the hydraulic retention time of wastewater in the adsorption chambers is reduced, the probability that microbubbles collide, are gathered and disappear is reduced, and a large amount of microbubbles are ensured to enter the fluidized bed reaction chamber in the form of cavitation jet flow. The waste water is made to pass through the annular gap to produce cavitation jet flow and to enter the reaction chamber of the fluidized bed, and the catalyst carrier stuffing inside the reaction chamber floats upwards and downwards violently under the action of the cavitation jet flow to form the fluidized bed. The process can improve the utilization rate of the oxidant, reduce energy consumption and promote the oxidative decomposition of pollutants from the following aspects:
oxidizing gas passes through the microporous ceramic to generate micro-bubbles which are in the adsorption chamberThe micro-bubble adsorption balls are adsorbed on the surfaces of pollutant colloid particles in a large quantity under the action of the micro-bubble adsorption balls to generate a targeting effect, namely, the adsorbed oxidizing gas micro-bubbles generate a cavitation effect in the hydrodynamic cavitation process, so that the degradation-resistant macromolecular structure and the cracking and oxidative decomposition of colloid pollutants in the wastewater are directly realized, and the utilization rate of an oxidant is greatly improved;
by utilizing the mass transfer enhancement effect in the hydrodynamic cavitation process, high-speed cavitation jet flow is injected into a fluidized bed reaction chamber to generate cavitation in the reaction chamber, and simultaneously strong vortex and turbulent motion are accompanied, so that the catalyst carrier filler is violently floated and sunk in the reaction chamber to form a floating fluidized bed, the mass transfer is enhanced, and the aims of efficiently utilizing an oxidant and quickly oxidizing and decomposing refractory organic matters are fulfilled; meanwhile, the effects of local high temperature, high pressure, micro jet and the like in the cavitation process provide favorable conditions for the oxidative decomposition of pollutants, so that the energy consumption is greatly reduced;
the combined action of hydrodynamic cavitation and a catalyst can efficiently promote hydroxyl radicals, and the hydroxyl radicals have stronger oxidability than oxidizing gas, so that the oxidizing property is greatly enhanced, and the consumption of an oxidizing agent is reduced;
the catalyst carrier filler meets the requirements of certain specific gravity, surface density, specific surface area and wear rate, and the active ingredients of the catalyst are consolidated on the surface of the porous medium, so that the active ingredients do not participate in the reaction and are not lost in the whole reaction process, and secondary pollution is not generated;
2. the structure effect is as follows:
the compression spring and the check valve are arranged in the fusiform connecting ring, so that sewage can be effectively prevented from flowing into the vent pipe, and the smooth of the vent pipe and the stable operation of equipment are ensured;
the micro-bubble adsorption balls in the adsorption chamber are made of glass fiber reinforced plastics, the mechanical strength is high, the corrosion resistance is high, the stability is good, the surface of the micro-bubble adsorption balls is subjected to frosting treatment, on one hand, the micro-bubble adsorption balls have good adsorption capacity, on the other hand, the micro-bubble adsorption balls do irregular motion in the adsorption chamber under the impact of water flow, when the micro-bubble adsorption balls collide with the shuttle-shaped connecting rings, the vent pipes can vibrate in a small amplitude, the width of annular gaps on the outer sides of the vent pipes is changed randomly in a small amplitude, cavitation jet flow flowing out of the annular gaps can vibrate along with the annular gaps, the mass transfer effect of the fluidized bed reaction chamber is greatly enhanced by the vibration, and the impact force of collision can break and drop plugs in the annular gaps, so that the stable operation of the fluidized bed reactor is ensured;
the vent pipe is fixed through the elastic fixing ring, the elastic fixing ring is fixed on the buffer fixing body through 4 screws, and a spring washer is adopted, so that the structure is convenient to disassemble and assemble, the elastic modulus of a vent pipe and elastic fixing ring assembly can be changed through the tightness of an adjusting screw, and the fine adjustment of the width variation range of the annular gap during working is further realized;
the top of the fluidized bed reaction chamber is provided with a grid, and 4 grid holes with the diameter of 2mm are uniformly distributed on the grid, so that the catalyst carrier filler can be effectively prevented from entering a pipeline, and the stable operation of the system is ensured;
the buffer connector and the rear guide pipe can effectively stabilize the flow state, reduce the local head loss and reduce the energy consumption, and meanwhile, the buffer connector and the rear guide pipe have larger volumes, so that the waste water has longer hydraulic retention time, and the pollutants in the waste water can be further oxidized and decomposed by using the residual oxidizing gas;
3. the consumption of the oxidant is 50% of that of the common fluidized bed catalytic oxidation method, the energy consumption is 60% of that of the ultrasonic cavitation coupling catalytic oxidation method, and when the refractory organic wastewater is treated, only the flow of the wastewater and the flow of the oxidizing gas need to be regulated, so that the operation and the control are simple. If the wastewater treatment amount needs to be improved, a plurality of the invention can be connected in parallel; if the removal rate of the pollutants needs to be improved, a plurality of the devices can be connected in series, and other facilities do not need to be added. Compared with the traditional catalytic oxidation fluidized bed sewage treatment device, the device has the advantages of strong flexibility, high stability, low manufacturing cost, low operating cost, simple operation and control and no secondary pollution.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged partial view of FIG. 1 at L;
FIG. 3 is an enlarged partial view of FIG. 1 at M;
FIG. 4 is an enlarged view of FIG. 1 at N;
FIG. 5 is a cross-sectional view taken along plane A-A of FIG. 1;
fig. 6 is a cross-sectional view taken along plane B-B of fig. 1.
Reference numerals: 1. a rear duct; 2. a buffer connector; 3. a breather pipe; 4. an air inlet pipe; 5. a grid; 6. a fluidized bed housing; 7. a catalyst support filler; 8. a restrictor ring; 9. a front conduit; 10. a conical microporous ceramic; 11. a shuttle shaped connecting ring; 12. a microbubble adsorption ball; 13. a seal ring; 14. a housing; 15. an elastic fixing ring; 16. a screw; 17. a spring washer; 18. an annular gap; 19. a compression spring; 20. a check valve; 21. Grid holes; 22. and a water through hole.
Detailed Description
As shown in the figure, the invention comprises a shell 14, wherein the shell 14 consists of a front guide pipe 9, a throttling ring 8, a fluidized bed shell 6, a grating 5, a buffering connecting body 2 and a rear guide pipe 1 which are sequentially connected through bolts, and sealing rings 13 are arranged on the connecting surfaces of the components, so that the shell 14 is sealed. A breather pipe 3 is provided in the housing 14, the breather pipe 3 is fixed by an elastic fixing ring 15, and the elastic fixing ring 15 is attached to the cushion connection body 2 by 4 screws 16 and a spring washer 17. An air inlet pipe 4 and a water through hole 22 are arranged on the buffer connector 2, the upper end of the vent pipe 3 is connected with the air inlet pipe 4, and the lower end of the vent pipe 3 is arranged in front of the air inlet pipe through threadsThe fusiform connecting ring 11 in the conduit 9 is connected, a check valve 20 and a compression spring 19 are arranged in the fusiform connecting ring 11, the lower end faces of the compression spring 19 and the fusiform connecting ring 11 are both arranged on the conical microporous ceramic 10, and the fusiform connecting ring 11 and the conical microporous ceramic 10 are adhered by 502 glue. An adsorption chamber is formed by the throttling ring 8, the outer wall of the upper part of the fusiform connecting ring 11, the outer wall of the vent pipe 3 between the throttling ring 8 and the fusiform connecting ring 11 and the inner wall of the front guide pipe 9, a microbubble adsorption ball 12 is filled in the adsorption chamber, the filling volume of the microbubble adsorption ball 12 accounts for 1/4-1/3 of the total volume of the adsorption chamber, the microbubble adsorption ball 12 is a glass steel ball with a frosted surface, the diameter is 12mm, and the haze value is 30-50%. The outer surface of the lower part of the fusiform connecting ring 11 is coplanar with the outer surface of the conical microporous ceramic 10, the generatrix of the outer surface is parallel to the generatrix of the inner surface of the cone of the front conduit 9, and a circular water flow channel is formed between the generatrix and the inner surface of the cone of the front conduit 9. An acute angle formed by the inner hole wall of the throttle ring 8 and the axis of the throttle ring 8 is 45 degrees, an annular bulge is arranged at the corresponding position of the outer wall of the vent pipe 3 and the inner hole of the throttle ring 8, the acute angle formed by the outer wall of the bulge and the axis of the vent pipe 3 is 45 degrees, and an annular gap 18 with the width of 0.5-1mm is formed between the outer wall of the bulge and the inner hole wall of the throttle ring. The inner cavity of the fluidized bed shell 6 is a fluidized bed reaction chamber, the upper half part of the fluidized bed reaction chamber is a cylinder, and the lower half part of the fluidized bed reaction chamber is a round table with a small lower part and a big upper part; the ratio of the height of the cylinder to the diameter of the bottom surface is 1.2-2.0, and an acute angle formed by a generatrix of the circular truncated cone and the vertical direction is 20-25 degrees. Catalyst carrier filler 7 is filled in the fluidized bed reaction chamber, the catalyst carrier filler 7 is a porous medium sphere with the diameter of 3-5mm, and the specific gravity of the catalyst carrier filler 7 is 1.2-1.5 multiplied by 103kg/m3Apparent density of 4-6X 103kg/m3The wear rate is less than 1.5 percent, and the surface area to volume ratio is more than 5000m2/m3The ratio of the apparent volume of the filler to the volume of the fluidized bed reaction chamber is 1/4-1/2. The catalyst carrier filler 7 is prepared by taking 50-60% of fly ash, 20-25% of bauxite and 20-25% of manganese powder in mass ratio as raw materials through grinding, balling, sintering and screening. 4 grid holes 21 with the diameter of 2mm are uniformly distributed on the circular grid, 4 water passing holes 22 are also formed in the buffer connecting body 2, and the fluidized bed reaction chamber is communicated with the rear guide pipe 1 through the grid holes 21 and the water passing holes 22.
Before use, a waste water pipe connected with a sewage pump is connected with a front guide pipe 9 of the sewage treatment device through a flow regulating valve, and a water outlet pipe is connected with a rear guide pipe 1; the air inlet pipe 4 is connected with an oxidizing gas storage tank through an air flow regulating valve, the lift of the sewage pump is not less than 20m, and the pressure of the oxidizing gas is not less than 2 atmospheric pressures.
When the device works, oxidizing gas after flow regulation enters the vent pipe 3 from the gas inlet pipe 4, the check valve 20 is opened under the action of gas pressure, the oxidizing gas forms micro bubbles after passing through the conical microporous ceramic 10, wastewater enters from the front guide pipe 9, the water flow velocity in the adsorption chamber is reduced, a large number of micro bubbles are adsorbed on the surface of particulate pollutants under the action of the micro bubble adsorption balls 12 in the adsorption chamber, then the wastewater flows through the annular gap 18 between the throttling ring 8 and the vent pipe 3, the flow velocity is greatly increased, the pressure intensity is greatly reduced, the wastewater enters the fluidized bed reaction chamber in the form of high-speed oscillation cavitation jet, as a certain amount of catalyst carrier filler 7 is filled in the fluidized bed reaction chamber, the pressure intensity is rapidly increased after the high-speed oscillation cavitation jet enters the fluidized bed reaction chamber, cavitation effects such as local high temperature, high pressure, micro jet, strong impact wave and the like are generated, and the combined action of the cavitation effect and the catalyst carrier filler 7 can generate a large number of hydroxyl radicals in the fluidized bed reaction chamber, the hydroxyl radical has a stronger oxidizing property. Meanwhile, the catalyst carrier filler 7 forms a fluidized bed under the action of high-speed oscillation cavitation jet flow, so that mass transfer is enhanced, and pollutants in the wastewater are quickly and fully oxidized and decomposed. Thereafter, the fluid flows into the buffer connector 2 and the rear guide pipe 1 through the grill 5, and the water after the treatment process is discharged through the outlet pipe.
Claims (10)
1. A kind of oscillating cavitation jet fluidized bed catalytic oxidation waste water treatment facilities, characterized by including the casing made up of leading conduit, choke ring, fluidized bed casing, grid, buffer connector, back conduit connected sequentially, there are breather pipes in the sealed casing, the upper end of breather pipe couples to intake pipe set up on the buffer connector, the lower end of breather pipe couples to toper cellular ceramic through the shuttle-shaped go-between set up in leading conduit, there are check valves and compression springs in the shuttle-shaped go-between, is filled with the microbubble and adsorbed the ball by the suction chamber formed between outer wall of upper portion of choke ring, shuttle-shaped go-between and outer wall of breather pipe and leading conduit inner wall; catalyst carrier filler is filled in the fluidized bed shell.
2. The apparatus for treating waste water by catalytic oxidation of oscillating cavitation jet fluidized bed as claimed in claim 1, wherein the outer surface of the lower portion of the shuttle-shaped connecting ring is coplanar with the outer surface of the tapered microporous ceramic, and the generatrices of their outer surfaces are parallel to the generatrices of the inner surface of the cone of the front conduit.
3. The apparatus for treating waste water by catalytic oxidation of oscillating cavitation jet fluidized bed as claimed in claim 2, wherein the lower end of the shuttle-shaped connecting ring is bonded with the tapered microporous ceramic by 502 glue, and the upper end thereof is connected with the vent pipe by screw thread.
4. The apparatus for treating waste water by catalytic oxidation of oscillating cavitation jet fluidized bed as claimed in claim 1, wherein the filling volume of the micro bubble adsorption balls is 1/4-1/3 of the total volume of the adsorption chamber.
5. The apparatus for treating waste water by catalytic oxidation of oscillating cavitation jet fluidized bed as claimed in claim 1, wherein the micro bubble adsorption sphere is a glass steel sphere with frosted surface, diameter of 12mm, and haze value of 30-50%.
6. The apparatus according to claim 1, wherein the inner wall of the orifice ring is 45 ° from its axis, the outer wall of the vent pipe is provided with an annular projection corresponding to the inner bore of the orifice ring, the outer wall of the projection is 45 ° from its axis, and the outer wall of the projection and the inner wall of the orifice ring form an annular gap having a width of 0.5-1 mm.
7. The apparatus for treating waste water by catalytic oxidation of oscillating cavitation jet fluidized bed as claimed in claim 1, wherein the aeration pipe is connected to the buffer connector by means of elastic fixing ring and screw.
8. The apparatus for treating waste water by catalytic oxidation of oscillating cavitation jet fluidized bed according to claim 1, wherein the internal cavity of the fluidized bed housing is a fluidized bed reaction chamber, the upper half part of the fluidized bed reaction chamber is a cylinder, and the lower half part thereof is a truncated cone with a smaller lower part and a larger upper part; the ratio of the height of the cylinder to the diameter of the bottom surface is 1.2-2.0, and an acute angle formed by a generatrix of the circular truncated cone and the vertical direction is 20-25 degrees.
9. The apparatus for treating waste water by catalytic oxidation with oscillating cavitation jet fluidized bed as claimed in claim 1, wherein the ratio of the apparent volume of the catalyst carrier filler to the volume of the fluidized bed reaction chamber is 1/4-1/2.
10. The apparatus for treating waste water by catalytic oxidation of oscillating cavitation jet fluidized bed as claimed in claim 9, wherein the catalyst carrier filler is a porous medium sphere with a diameter of 3-5mm and a specific gravity of 1.2-1.5 x 103kg/m3Apparent density of 4-6X 103kg/m3The wear rate is less than 1.5 percent, and the surface area to volume ratio is more than 5000m2/m3。
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2021
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| CN1923374A (en) * | 2006-09-26 | 2007-03-07 | 魏强 | New pattern rolling ball rotation impulse jet nozzle |
| CN104591315A (en) * | 2015-01-06 | 2015-05-06 | 北京理工大学 | Novel hydraulic cavitator |
| CN106348425A (en) * | 2016-11-14 | 2017-01-25 | 东北大学 | Gas-nucleus targeting catalytic oxidation reactor based on hydrodynamic cavitation effect |
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