CN110255698A - A kind of water treatment facilities and method for strengthening ozone mass transfer and oxidation process - Google Patents

A kind of water treatment facilities and method for strengthening ozone mass transfer and oxidation process Download PDF

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Publication number
CN110255698A
CN110255698A CN201910624673.7A CN201910624673A CN110255698A CN 110255698 A CN110255698 A CN 110255698A CN 201910624673 A CN201910624673 A CN 201910624673A CN 110255698 A CN110255698 A CN 110255698A
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reactor
mass transfer
ozone
liquid
gas
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CN110255698B (en
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杨宇成
曾尚升
张娜
张学勤
肖美添
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Huaqiao University
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Huaqiao University
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/725Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/78Treatment of water, waste water, or sewage by oxidation with ozone
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/002Construction details of the apparatus
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/78Details relating to ozone treatment devices
    • C02F2201/782Ozone generators
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/02Temperature
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/03Pressure

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

The invention discloses a kind of water treatment facilities and method for strengthening ozone mass transfer and oxidation process, the device includes ozone generator, feed liquor storage tank, reactor and waste tank, ozone gas-liquid mass-transfer efficiency can greatly be strengthened using the device, and realize the efficient utilization of solid catalyst in oxidation process.Therefore the device can effectively strengthen ozone mass transfer and heterogeneous ozone oxidation process, be with a wide range of applications multi-field.

Description

A kind of water treatment facilities and method for strengthening ozone mass transfer and oxidation process
Technical field
The invention belongs to the chemical industry of ozone system and environmental areas, and in particular to a kind of reinforcing ozone mass transfer and oxidation process Water treatment facilities and method.
Background technique
Ozone (O3) it is oxygen (O2) allotrope, be a kind of with the light blue of special odor at normal temperatures and pressures Gas, it was found and named in the sulphuric acid electrolyte experiment of Germany scientist Schonbein in 1840.Ozone has very strong Oxidisability, oxidation-reduction potential in water is 2.07eV, is only second to fluorine (2.50eV) in simple substance, is higher than chlorine (1.36eV).There are two types of modes for ozone oxidation process, first is that ozone direct oxidation mode, another kind is that ozone decomposes life in water It produces the stronger hydroxyl radical free radical of oxidisability (OH), carries out indirect oxidation.
The oxidation of ozone can lead to the rupture of unsaturated organic molecule, therefore it is usually used in handling organic wastewater with difficult degradation thereby, Such as coking wastewater, dyeing waste water, paper waste, refinery(waste) water make it be degraded to nontoxic water and carbon dioxide or be oxidized to Degradable small organic molecule.Although ozonation technology has, oxidability is strong, oxidation rate is fast, it is secondary not generate generally The advantages such as pollution, but ozone high production cost (energy consumption about 10kW/kg O3), the solubility in water is low.
Theoretical according to chemical industry multiphase mass transfer, need to strengthen ozone mass transport process can pass through two ways: first is that improving ozone body Product mass tranfer coefficient, this is needed by improving or designing novel ozone contact arrangement, increases gas-liquid mass transfer area as reduced to reach Ozone bubbles size, or accelerate the modes such as the gas-liquid interface renewal rate i.e. alternate turbulent extent of enhancing gas-liquid and realized;It is another Kind is to improve two alternate ozone concentration gradients.For first way, existing ozone contact arrangement, as bubble tower generates Bubble size is big and uncontrollable, and less turbulence is low, and Surface Renewal is slow, therefore mass-transfer efficiency is low, and practical operation can only pass through increasing Industrial cost is significantly greatly increased to reach demand in oil (gas) filling device volume;Agitating paddle is set in tank reactor, even if improving tradition stirring Blade intensity or material, due to the equipment or power limit of agitating paddle, the less turbulence that fluid passes through merely stirring is lower, can not Realize efficient gas-liquid mass transfer and mixing.And since current ozone generating apparatus technology is limited, if logical for the second way Ozone concentration in increase gas phase is crossed, then cost is very high, risk is big, it is more difficult to realize.
In addition, there is selective oxidation in ozone direct oxidation mode, it is more demanding to oxidation environment, therefore these are insufficient Seriously limit popularization of the ozonation technology in industrial application.It is a kind of therefore to solve the development bottleneck of current ozone technology Based on both the above thinking strengthen Ozone Gas Mass Transfer Efficiency, while the technology that can solve ozone oxidation problem again have it is to be developed.
Summary of the invention
It is an object of the invention in place of overcome the deficiencies in the prior art, provide a kind of reinforcings ozone mass transfer and aoxidized The water treatment facilities and method of journey solve the problems, such as ozone mass transfer and oxidation process low efficiency in above-mentioned background technique.
The technical solution adopted by the present invention to solve the technical problems first is that: provide a kind of reinforcing ozone mass transfer and oxygen The water treatment facilities of change process, including ozone generator, feed liquor storage tank, reactor and waste tank;
The reactor includes pedestal, shell, rotating device, transmission device, electric machine assembly;The shell is set to pedestal On, shell opens up several gas-liquid inlet and outlet;Inner walls interval is vertically arranged with several baffles and case top is equipped with top cover, institute It states top cover and shell, pedestal surrounds the hollow cavity to form a sealing, the lower surface of the top cover is angularly equipped with several blend stops, The blend stop is axially extending around by top cap central;The rotating device is set in shell, including rotation axis and rotor, institute It states rotation axis setting and casing center and penetrates top cover, the rotor is sheathed on the lower part of rotation axis, and the rotor outer periphery surrounds It is provided with porous foam filler, gland and fixed bottom plate, the porous bubble are installed in the top and bottom of the porous foam filler respectively Load has ozone oxidation catalyst on foam filler;The electric machine assembly is set on pedestal, arranged side by side with shell, is filled by transmission It sets and is connect with rotating device, for controlling rotating device rotation;
The ozone generator is connected with the gas-liquid of reactor inlet and outlet, for providing ozone to reactor;
The feed liquor storage tank is connected with the gas-liquid of reactor inlet and outlet, for storing staying water;
The gas-liquid inlet and outlet of the waste tank and reactor are connected, for receiving giving up of being discharged after reacted device reaction Liquid.
In a preferred embodiment of the present invention, the porous foam filler is hollow cylinder, the hollow parts of cylindrical body For cylinder or rotary table, there is a fixed gap between the periphery and inner walls of cylindrical body, the baffle plate setting is in gap, for increasing Liquid feeding body turbulence coefficient.Metal foam filler, metal oxide foam stuffing and non-metal foam may be selected in porous foam filler Filler while with good mechanical strength there is high porosity (reaching as high as 97%) and specific surface area (to reach from 100 To 9000m2/m3).Effectively strengthening fluid is rapid for strong centrifugal force and Strong shear power caused by quick rotation using foam stuffing Traverse degree promotes the gas-liquid of ozone and staying water to mix;And by porous media environment in foam stuffing to ozone gas Bubble is cut, is crushed, and the diameter of most of bubble is contacted between increase liquid phase by 1~0.1 millimeter (submillimeter level) to 2mm Area reaches the purpose for strengthening Ozone Gas Mass Transfer Efficiency and promotes respectively to mix, and improves interphase mass transfer efficiency.
Meanwhile porous foam filler can be used as catalyst carrier, load different activities substance, catalyst according to different demands It mainly include metal oxide (Al2O3、TiO2、MnO2Deng), the metal or metal oxide (Cu/TiO that are carried on carrier2、 Cu/Al2O3、TiO2/Al2O3Deng), the contact area and catalytic efficiency of catalyst are increased, strengthens ozone and resolves into oxidability Stronger, non-selectivity hydroxyl radical free radical, this not only substantially reduces liquid side ozone concentration, improves two alternate ozone concentration ladders Degree strengthens Ozone Gas Mass Transfer Efficiency, while solving the problems, such as ozone selective oxidation.Therefore, the device of the invention can have The reduction ozone usage amount of effect reduces ozone system running cost.
In a preferred embodiment of the present invention, the transmission device includes shaft coupling, cover board, belt pulley and belt;Joined The connection of the upper end of axis device and rotation axis, the cover board are set to the top of shaft coupling, are equipped at least two belt pulleys in cover board, point It is not connect with shaft coupling and electric machine assembly, the belt sleeve is set to belt pulley.
In a preferred embodiment of the present invention, stating electric machine assembly includes motor, bracket, motor shaft and frequency converter;The branch Erection is placed in above pedestal and is supported in cover board lower part, and the motor connect with frequency converter and is fixed by the bracket on pedestal, The motor shaft is set at the top of motor and connect with belt pulley.
In a preferred embodiment of the present invention, the shell is cylinder, and ratio of height to diameter 0.5-2, the baffle number is 4 ~8.
In a preferred embodiment of the present invention, the ratio of height to diameter of the shell is 1, and housing upper baffle plate quantity is 4.
In a preferred embodiment of the present invention, the gas-liquid inlet and outlet include inlet, liquid outlet, air inlet and outlet Mouthful, the air inlet position is in housing bottom center;The gas outlet is set to top cover, and the inlet is set to the top of shell Portion, bottom or peripheral wall, the liquid outlet are set to housing bottom or peripheral wall.
In a preferred embodiment of the present invention, the ozone generator is connected by the air inlet of air inlet pipe and reactor bottom It connects, the air inlet pipe is equipped with gas flowmeter.
In a preferred embodiment of the present invention, the feed liquor storage tank is connected by the inlet of inlet tube and reactor bottom It connects, the inlet tube is equipped with water pump and fluid flowmeter.
In a preferred embodiment of the present invention, the waste tank is connected by the liquid outlet of outlet tube and reactor peripheral wall It connects.
The technical solution adopted by the present invention to solve the technical problems second is that: provide a kind of reinforcing ozone mass transfer and oxygen The method for treating water of change process, using the water treatment facilities of above-mentioned reinforcing ozone mass transfer and oxidation process, using semicontinuous behaviour Make and/or continuous operation, the revolving speed of rotor is 50-2000rpm when operation, and operation temperature is 0~90 DEG C in reactor, operation pressure Power is 0.1~5MPa.
When semicontinuous operation, liquid phase is intermittently operated, and gas phase is continuous operation;Reservoir amount range is reactor volume 70-90%.Preferably, gas enters from housing bottom center, is discharged from the top cover of reactor.
When continuous operation, gas-liquid volume flow ratio is 0.5-1, and liquid enters from top or from housing bottom, from shell week Wall outflow;Gas enters from housing bottom center, is discharged from the top cover of reactor.
The technical program compared with prior art, it has the following advantages:
1. the present invention is higher by 50% or so (highest list relative to the tank reactor using traditional agitating paddle, mass tranfer coefficient Position liquid phase volume power consumption 6000W/m3When);Strong centrifugal force and Strong shear power caused by rotation of the present invention using foam stuffing The porous environment of field and foam stuffing can increase gas-liquid surface the gas cutting and crushing in reactor at small bubble Contact area, and the less turbulence of gas-liquid fluid can be strengthened, and greatly improve the alternate Surface Renewal rate of gas-liquid, it substantially reduces The resistance that ozone is transmitted from gas phase to liquid phase, to reach the mass transfer effect for strengthening ozone.
2. porous foam filler of the invention can be used as catalyst carrier, energy supporting catalytic active substance improves tradition In multiphase stirred reactor solid catalyst with liquid associated movement and alternate relative velocity is smaller cause liquid solid between mass-transfer efficiency Not high problem, promoting ozone to be converted into, oxidability is more excellent and the hydroxyl radical free radical of non-selectivity, the method can have Effect ground reduces liquid side ozone concentration, improves alternate ozone concentration gradient, and then accelerate ozone mass transfer rate, and solve smelly Oxygen selectivity oxidized problem strengthens ozone system oxidation effectiveness, strengthens heterogeneous catalytic reaction process, greatly reducing catalyst makes Dosage and loss.
3. the system and device is high with Ozone Gas Mass Transfer Efficiency, ozone usage amount is few, oxidation compared to traditional ozone contact arrangement The advantage that ability is strong, occupied area is small.
Detailed description of the invention
Fig. 1 is structure of reactor schematic diagram.
Fig. 2 is reactor side structure schematic diagram.
Fig. 3 is water treatment facilities structural schematic diagram.
Wherein, in which: 1- pedestal, 2- shell, 3- foam stuffing, 4- rotation axis, 5- baffle, 6- top cover, 7- inlet, 8- Shaft coupling, 9- cover board, 10- belt pulley, 11- belt, 12- motor shaft, 13- seal axis, the gas outlet 14-, 15- motor, 16- top cover Blend stop, 17- go out/inlet, 18- frequency converter, 19- gland, 20- rotor, 21- bottom air inlet, 22- bottom liquid inlet mouth, 23- Gas/liquid import/export, the fixed bottom plate of 24-, 25- bracket, 26- ozone generator, 27- gas flowmeter, 28- feed liquor storage tank, 29- Water pump, 30- fluid flowmeter, 31- waste tank.
Specific embodiment
The contents of the present invention are illustrated with reference to the accompanying drawings and examples:
Embodiment 1
Such as Fig. 3, the water treatment facilities of a kind of the reinforcing ozone mass transfer and oxidation process of the present embodiment, including ozone occur Device, feed liquor storage tank, reactor and waste tank;
The reactor includes pedestal, shell, rotating device, transmission device, electric machine assembly;
The shell is set on pedestal, and shell opens up several gas-liquid inlet and outlet;If inner walls interval is vertically arranged with Dry baffle and case top are equipped with top cover, and the top cover and shell, pedestal surround the hollow cavity to form a sealing, the top cover Lower surface be angularly equipped with several blend stops, the blend stop is axially extending around by top cap central;The rotating device setting In in shell, including rotation axis and rotor, the rotation axis is erect and casing center and penetrates top cover, and the rotor, which is sheathed on, to be turned The lower part of moving axis, the rotor outer periphery encirclement are provided with porous foam filler, and the top and bottom of the porous foam filler fill respectively If gland and fixed bottom plate, load has ozone oxidation catalyst on the porous foam filler;The porous foam filler is Hollow cylinder, the hollow parts of cylindrical body are cylinder or rotary table, have a fixed gap between the periphery and inner walls of cylindrical body.
The gas-liquid inlet and outlet include inlet, liquid outlet, air inlet and air outlet, and the air inlet position is in shell bottom Portion center, the gas outlet are set to top cover, and the inlet is set to the top, bottom or peripheral wall of shell, the liquid outlet It is set to housing bottom or peripheral wall.
The transmission device includes shaft coupling, cover board, belt pulley and belt;The upper end of institute's shaft coupling and rotation axis connects It connects, the cover board is set to the top of shaft coupling, is equipped at least two belt pulleys in cover board, connects respectively with shaft coupling and electric machine assembly It connects, the belt sleeve is set to belt pulley.
The electric machine assembly includes motor, bracket, motor shaft and frequency converter;The bracket is set to above pedestal and supports In cover board lower part, the motor connect with frequency converter and is fixed by the bracket on pedestal, and the motor shaft is set to motor top Portion is simultaneously connect with belt pulley.
The gas-liquid inlet and outlet of the ozone generator and reactor are connected, the ozone generator pass through air inlet pipe with react The air inlet of device bottom connects, and the air inlet pipe is equipped with gas flowmeter.
The feed liquor storage tank is connected, institute for storing staying water by the inlet of inlet tube and reactor bottom Inlet tube is stated equipped with water pump and fluid flowmeter.
The gas-liquid inlet and outlet of the waste tank and reactor are connected, for receiving giving up of being discharged after reacted device reaction Liquid.
In the present embodiment, the shell is cylinder, and ratio of height to diameter 1, the baffle number is 4.Body height is 100 The liquid thrown away at a high speed is isolated according to shell with the realization of porous foam packed height or liquid is forced to return by~200mm, top cover In filler is gone.The collocation of body height and top cover, in conjunction with the shape of the present embodiment porous foam filler, realization preferably captures smelly Oxygen bubbles enters filler inner edge area, and is crushed to more bubbles, further strengthens the mass-transfer efficiency of ozone.
One, the measurement of ozone-aqueous systems volume transmission quality coefficient
Semicontinuous operation and continuous operation are respectively adopted using deionized water and oxygen as raw material using the device of embodiment 1 Mode measures ozone-aqueous systems volume transmission quality coefficient in present system device.
Semicontinuous operation is as follows:
By adjusting raw material oxygen gas flow regulating valve 27, passes the gas through ozone generator and generate ozone, and pass through Voltage on ozone generator is adjusted, setting ozone concentration is 20mg/L, and tolerance is controlled in 1-3L/min.Ozone gaseous mixture is from reaction Device bottom gas inlet 21 enters.A certain amount of deionized water 3-5L is measured to be poured into reaction kettle.Later, motor 15 is opened, And 20 revolving speed of rotor is adjusted in 100-500rpm by frequency converter 18.Under the rotor effect of rotation, gas, which can be inhaled into, to be turned Sub- inner edge, is acted on by centrifugal force again later, is passed through foam stuffing 3, is thrown away region trochanterica.Excessive gas goes out from reactor head gas Mouth 14 is discharged.Gas in reactor by cutting and crushing at small bubble, realize ozone mass transfer enhancement.The result shows that rotor Revolving speed is higher, processing liquid measure is more in reactor or tolerance is bigger, the mass-transfer efficiency of ozone is higher in reactor and liquid phase in it is smelly Oxygen balance concentration is bigger.When operating condition is optimal, equilibrium ozone concentration reaches 4.36mg/L, mass tranfer coefficient kLA reaches 0.0305s-1.Under gas liquid ratio and the approximate operating condition of ozone concentration, volume transmission quality coefficient is compared to contact with traditional ozone and be set 2 times can be higher by for such as bubble tower, stirred-tank reactor is higher by 57.2%.
It operates continuously as follows:
It is identical when gas operating mode is with semicontinuous operation.Deionized water is transported to reactor from storage tank 28 by pump 29 It is interior.Liquid enters from reactor bottom liquid-inlet 22, from 2 edge liquid of shell of reactor outlet, 17 outflow.Control liquid measure exists 0.5-5L/min liquid is finally flowed into storage tank 31 by gravity.After Liquid Flow reaches and stablizes, motor 15 is opened, and pass through change Frequency device 18 adjusts 20 revolving speed of rotor in 100-500rpm.Baffle 5 and top cover at the rotor 20 and shell of reactor that liquid is rotated The influence of blend stop 16 obtains abundant turbulence, realizes quickly mixing, gas-liquid contact surface is quickly updated, and then is improved smelly Oxygen transfer efficiency.The result shows that as revolving speed increases, gradually increasing for ozone concentration in volume transmission quality coefficient and liquid phase reaches It is not further added by when to certain revolving speed.As air inflow increases, volume transmission quality coefficient is relatively stable, and concentration of ozone in liquid phase is with gas Amount, which increases, to be gradually increased.As liquid inlet volume increases, volume transmission quality coefficient is gradually risen, and concentration of ozone in liquid phase gradually decreases.? When operating optimal, concentration of ozone in liquid phase reaches 4.75mg/L, mass tranfer coefficient kLA reaches 0.0342s-1
Embodiment 2
The present embodiment handles simulated wastewater with Acid Red B stimulated dye wastewater, using continuous operation mode.Porous foam is filled out Material uses foamed ceramics (Al2O3) material, plated catalyst is iron cobalt dual-metal oxide.Simulated wastewater passes through pump from storage tank 28 It is driven into reactor, liquid enters in storage tank 31 after processing.Setting ozone concentration is 20mg/L, and gas-liquid flow-rate ratio is 0.5- 1.Revolving speed is arranged in 300-500rpm.
The result shows that Acid Red B removal efficiency increases as revolving speed increases, when reaching 500rpm, removal efficiency increases unknown It is aobvious.Gas liquid ratio is bigger, and Acid Red B removal efficiency is higher.The foam stuffing phase for having the foam stuffing of plating catalyst and not plating catalyst Than Acid Red B removal efficiency can be improved 10% or so.Under optimal operating condition, Acid Red B removal efficiency can reach 98%, ozone Utilization rate is 96%.
Embodiment 3
The present embodiment takes swimming pool water sample to be stored in feed liquor storage tank 28, wherein urea content 10.23mg/L, bacterium in water sample Fall sum 5.4 × 104Cfu/mL, total coli group 230MPN/L.The present embodiment is carried out using continuous operation mode, and ozone is arranged Concentration is 10mg/L, and gas-liquid flow-rate ratio is 0.2-0.6, revolving speed 200-500rpm.
The result shows that urea removal efficiency increases, and total plate count and total coli group amount subtract as revolving speed and gas liquid ratio increase It is small.Under optimal operating condition, urea removal efficiency reaches 93%, total plate count and is less than less than 1cfu/mL, total coli group amount 3MPN/L。
The above is only the preferred embodiment of the present invention, the range implemented of the present invention that therefore, it cannot be limited according to, i.e., according to Equivalent changes and modifications made by the invention patent range and description, should still be within the scope of the present invention.

Claims (12)

1. a kind of water treatment facilities for strengthening ozone mass transfer and oxidation process, it is characterised in that: stored up including ozone generator, feed liquor Tank, reactor and waste tank;
The reactor includes pedestal, shell, rotating device, transmission device, electric machine assembly;The shell is set on pedestal, Shell opens up several gas-liquid inlet and outlet;Inner walls interval is vertically arranged with several baffles and case top is equipped with top cover, described Top cover and shell, pedestal surround the hollow cavity to form a sealing, and the lower surface of the top cover is angularly equipped with several blend stops, institute It is axially extending around by top cap central to state blend stop;The rotating device is set in shell, including rotation axis and rotor, described Rotation axis is erect and casing center and penetrates top cover, and the rotor is sheathed on the lower part of rotation axis, and the rotor outer periphery encirclement is set It is equipped with porous foam filler, gland and fixed bottom plate, the porous foam are installed in the top and bottom of the porous foam filler respectively Load has ozone oxidation catalyst on filler;The electric machine assembly is set on pedestal, arranged side by side with shell, passes through transmission device It is connect with rotating device, for controlling rotating device rotation;
The ozone generator is connected with the gas-liquid of reactor inlet and outlet, for providing ozone to reactor;
The feed liquor storage tank is connected with the gas-liquid of reactor inlet and outlet, for storing staying water;
The waste tank is connected with the gas-liquid of reactor inlet and outlet, for receiving the waste liquid being discharged after reacted device reaction.
2. a kind of water treatment facilities for strengthening ozone mass transfer and oxidation process according to claim 1, it is characterised in that: institute Stating porous foam filler includes that metal foam filler, metal oxide foam stuffing and non-metal foam filler, porous foam are filled out Material is hollow cylinder, and the hollow parts of cylindrical body are cylinder or rotary table, and have one between the periphery and inner walls of cylindrical body Fixed gap.
3. a kind of water treatment facilities for strengthening ozone mass transfer and oxidation process according to claim 1, it is characterised in that: institute Stating transmission device includes shaft coupling, cover board, belt pulley and belt;The connection of the upper end of institute's shaft coupling and rotation axis, the cover board It is set to the top of shaft coupling, at least two belt pulleys is equipped in cover board, is connect respectively with shaft coupling and electric machine assembly, the belt It is sheathed on belt pulley.
4. a kind of water treatment facilities for strengthening ozone mass transfer and oxidation process according to claim 3, it is characterised in that: institute Stating electric machine assembly includes motor, bracket, motor shaft and frequency converter;The bracket is set to above pedestal and is supported under cover board Portion, the motor connect with frequency converter and are fixed by the bracket on pedestal, and the motor shaft is set at the top of motor and and skin Belt wheel connection.
5. a kind of water treatment facilities for strengthening ozone mass transfer and oxidation process according to claim 1, it is characterised in that: institute Shell is stated as cylinder, ratio of height to diameter 0.5-2, the baffle number is 4~8.
6. a kind of water treatment facilities for strengthening ozone mass transfer and oxidation process according to claim 1, it is characterised in that: institute Stating gas-liquid inlet and outlet includes inlet, liquid outlet, air inlet and air outlet, and the air inlet position is in housing bottom center, institute It states gas outlet and is set to top cover, the inlet is set to the top, bottom or peripheral wall of shell, and the liquid outlet is set to shell Bottom or peripheral wall.
7. a kind of water treatment facilities for strengthening ozone mass transfer and oxidation process according to claim 6, it is characterised in that: institute It states ozone generator to connect by the air inlet of air inlet pipe and reactor bottom, the air inlet pipe is equipped with gas flowmeter.
8. a kind of water treatment facilities for strengthening ozone mass transfer and oxidation process according to claim 6, it is characterised in that: institute It states feed liquor storage tank to connect by the inlet at the top of inlet tube and reactor, bottom or peripheral wall, the inlet tube is equipped with water Pump and fluid flowmeter.
9. a kind of water treatment facilities for strengthening ozone mass transfer and oxidation process according to claim 6, it is characterised in that: institute Waste tank is stated to connect by outlet tube with the liquid outlet of reactor peripheral wall or bottom.
10. a kind of method for treating water for strengthening ozone mass transfer and oxidation process, it is characterised in that: using such as claim 1~9 times The water treatment facilities for strengthening ozone mass transfer and oxidation process described in one, using semicontinuous operation and/or continuous operation, operation When rotor revolving speed be 50-2000rpm, operation temperature is 0~90 DEG C in reactor, and operating pressure is 0.1~5MPa.
11. a kind of method for treating water for strengthening ozone mass transfer and oxidation process according to claim 10, it is characterised in that: When the semicontinuous operation, liquid phase is intermittently operated, and gas phase is continuous operation;Reservoir amount range is the 70- of reactor volume 90%, gas enters from housing bottom center, is discharged from the top cover of reactor.
12. a kind of method for treating water for strengthening ozone mass transfer and oxidation process according to claim 10, it is characterised in that: When the continuous operation, gas-liquid volume flow ratio is 0.5-1, and liquid enters from top or from housing bottom, from shell peripheral wall stream Out;Gas enters from housing bottom center, is discharged from the top cover of reactor.
CN201910624673.7A 2019-07-11 2019-07-11 Water treatment device and method for strengthening mass transfer and oxidation process of ozone Active CN110255698B (en)

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