CN106186279A - Continuous operating device for catalyzing and oxidating ozone and method - Google Patents
Continuous operating device for catalyzing and oxidating ozone and method Download PDFInfo
- Publication number
- CN106186279A CN106186279A CN201610801659.6A CN201610801659A CN106186279A CN 106186279 A CN106186279 A CN 106186279A CN 201610801659 A CN201610801659 A CN 201610801659A CN 106186279 A CN106186279 A CN 106186279A
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- Prior art keywords
- ozone
- reactor
- air
- continuous operating
- catalyzing
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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
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
Abstract
The invention provides a kind of continuous operating device for catalyzing and oxidating ozone, including the first reactor, it is connected to the influent waste water device above the first reactor, the main ozone air intake installation of ozone is provided to described first reactor inner bottom part, the second reactor being arranged side by side with described first reactor, described first reactor and the linker of described second reactor is connected from bottom, it is positioned at the bed course of the second reactor inner bottom part, it is positioned at the catalyst layer above described bed course, the air cloth device of air of air is provided in the second reactor described in direction under described catalyst layer, it is connected to the discharging device above described second reactor.The present invention is by main ozone air intake installation and air cloth device of air, on the one hand improve gas-liquid mass transfer effect, on the other hand the continual rinsing to catalyst layer is achieved, effectively prevent the pollution of catalyst, make the continuous not parking operation of energy of continuous operating device for catalyzing and oxidating ozone, cancel backwashing system simultaneously, simplify structure.
Description
Technical field
The present invention relates to field of waste water treatment, particularly relate to a kind of continuous operating ozone catalytic oxygen for processing waste water
Gasifying device and a kind of continuous operating catalytic ozonation method.
Background technology
Ozone has the strongest oxidability, and ozone technology is widely used to water as a clean environment firendly technology and processes
In, it is mainly used in removing the bio-refractory Organic substance in water.Finding in actual use, single ozone oxidation exists
The shortcomings such as oxidation selectivity is strong, oxidation efficiency is low, effect is unstable, oxidization time is long, causes investment and operating cost to compare
Height, and the interpolation of catalyst makes oxidation efficiency be significantly improved, and reduces ozone dosage, shortens the process time.
At present, become research and the focus of application with the heterogeneous ozonation technology of solid catalyst, but transport in reality
Finding during row, on the one hand system mass transfer effect is the best, and on the other hand ozone catalyst is easily contaminated, and especially works as water inlet
In the case of the water-quality ratios such as, organic concentration height high for concentration of suspension are relatively severe, run continuously at device for catalyzing and oxidating ozone
After a period of time, catalyst surface adsorbs the objectionable impurities such as oxidation product such as the float in water and foundry loam and is contaminated, from
And cause significantly reducing of oxidation efficiency.
For ensureing stablizing of ozone oxidation effect, need to arrange catalyst wash device, such as backwash airduct, backwashing water
, once there is the situation of catalyst contamination, stops water inlet immediately, and start flusher, use high intensity in pipe in running
Backwash wind and backwash water cleaning catalyst bed, to recover the performance of catalyst, treat backwash to terminate the most normally to intake fortune
OK.On the one hand arranging of back washing device add equipment investment, on the other hand, can produce a part of high concentration in backwash process
Backwash water, the generation of this part water adds the processing pressure of system, additionally, backwash can cause device for catalyzing and oxidating ozone
Out of service.
In view of this, it is necessary to provide the continuous operating device for catalyzing and oxidating ozone of a kind of improvement and continuous operating smelly
Oxygen catalysed oxidation processes, to solve the problems referred to above.
Summary of the invention
It is an object of the invention to provide a kind of can continuous not parking operation continuous operating catalytic ozonation dress
Put and continuous operating catalytic ozonation method.
For achieving the above object, the invention provides a kind of continuous operating device for catalyzing and oxidating ozone, including the
One reactor, it is connected to influent waste water device above the first reactor, provides ozone to described first reactor inner bottom part
The second reactor that main ozone air intake installation is arranged side by side with described first reactor, it is connected described first reactor from bottom
With the linker of described second reactor, be positioned at the bed course of the second reactor inner bottom part, be positioned at the catalyst above described bed course
Layer, the air cloth device of air of air is provided in the second reactor described in direction under described catalyst layer, it is connected to described second
Discharging device above reactor.
As a further improvement on the present invention, described main ozone air intake installation includes the master being positioned at the first reactor inner bottom part
The main ozone air inlet pipe that ozone micro-hole aerator connects with described main ozone micro-hole aerator.
As a further improvement on the present invention, described air cloth device of air includes being positioned at the air below described catalyst layer
The air intake duct that gas pipe connects with described air gas pipe.
As a further improvement on the present invention, described air gas pipe is located in described bed course.
As a further improvement on the present invention, described catalyst layer is formed by some beaded catalysts stacking.
As a further improvement on the present invention, the particle diameter of described catalyst is between 2mm ~ 6mm.
As a further improvement on the present invention, described continuous operating device for catalyzing and oxidating ozone also includes to described second
Thering is provided the auxiliary ozone air intake installation of ozone in reactor, described auxiliary ozone air intake installation includes being arranged at described catalyst layer
The auxiliary ozone air inlet pipe that the auxiliary ozonation aerated device device ozonation aerated with described auxiliary of bottom connects.
For achieving the above object, the present invention also provides for a kind of continuous operating catalytic ozonation method, including such as
Lower step: open influent waste water device, waste water enters the first reactor from influent waste water device continuously, and reacts described first
Flow from top to bottom in device；Open main ozone air intake installation and provide ozone, ozone and first to described first reactor inner bottom part
After waste water counter current contacting in reactor with waste water by described linker flow into the second reactor and in the second reactor from
Under flow up；Open air cloth device of air and air, air are provided in the second reactor described in direction under described catalyst layer
Bottom-up continuously catalyst layer is rinsed；Open the water after discharging device makes process and flow out described second reactor.
As a further improvement on the present invention, the air stream that described air cloth device of air provides in described second reactor
Amount is between 5 m3.m-2.h-1 ~ 15m3.m-2.h-1。
As a further improvement on the present invention, described continuous operating device for catalyzing and oxidating ozone also includes to described second
Thering is provided the auxiliary ozone air intake installation of ozone in reactor, described auxiliary ozone air intake installation includes being arranged at described catalyst layer
The auxiliary ozone air inlet pipe that the auxiliary ozonation aerated device device ozonation aerated with described auxiliary of bottom connects；Described continuous operating
Catalytic ozonation method also includes: open described auxiliary ozone air intake installation, provides ozone in described second reactor.
The invention has the beneficial effects as follows: the continuous operating device for catalyzing and oxidating ozone of the present invention, by main ozone air inlet
Device and air cloth device of air, on the one hand improve gas-liquid mass transfer effect, on the other hand achieves the lasting punching to catalyst layer
Wash, effectively prevent the pollution of catalyst, make the continuous not parking operation of energy of continuous operating device for catalyzing and oxidating ozone, cancel simultaneously
Backwashing system, simplifies structure.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the continuous operating device for catalyzing and oxidating ozone of the present invention.
Detailed description of the invention
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawings with specific embodiment pair
The present invention is described in detail.
Refer to shown in Fig. 1, for the continuous operating device for catalyzing and oxidating ozone 100 of the present invention, including the first reactor
1, it is connected to the influent waste water device 2 above the first reactor 1, provides the master of ozone smelly to described first reactor 1 inner bottom part
The second reactor 5 that oxygen air intake installation 3 is arranged side by side with described first reactor 1, it is connected described first reactor 1 from bottom
With the linker 4 of described second reactor 5, be positioned at the bed course 6 of the second reactor 5 inner bottom part, be positioned at urging above described bed course 6
Agent layer 7, in the second reactor 5 described in 7 times directions of described catalyst layer provide air air cloth device of air 8, be connected to
Discharging device 9 above described second reactor 5.
The flow direction of waste water is: waste water enters in described first reactor 1 from described influent waste water device 2 and flows from top to bottom
Dynamic, then enter bottom the second reactor 5 through described linker 4, then waste water flows in the second reactor 5 from bottom to top,
After discharge described second reactor 5 through described discharging device 9 and then be recovered or discharge.
Described influent waste water device 2 is positioned at above described first reactor 1, and described main ozone air intake installation 3 is to described
First reactor 1 inner bottom part provides ozone, therefore waste water flows after entering described first reactor 1 from top to bottom, with ozone adverse current
Clash into contact and then be effectively formed air-water mixed liquor, increasing the contact area of ozone and waste water, making in a part of ozone and water
Organic substance reaction, on the other hand make part ozone be dissolved in the water, and enter the second reaction with current by bottom linker 4
Bottom device 5.
Further, described main ozone air intake installation 3 includes the main ozone micro-pore aeration being positioned at the first reactor 1 inner bottom part
The main ozone air inlet pipe 32 that device 31 connects with described main ozone micro-hole aerator 31.Described main ozone micro-hole aerator 31 is titanium
Dish micro-hole aerator, ozone gas from main ozone air inlet pipe 32 through titanium dish micro-hole aerator with higher VELOCITY DIFFUSION to waste water
Form ozone microbubble, it is possible to more effectively form air-water mixed liquor.
Described bed course 6 is made up of stone, porcelain ball etc., in order to support described catalyst layer 7.
Dissolved with the waste water of ozone when the catalyst layer 7, ozone produces hydroxyl radical free radical under the effect of catalyst, enters one
Organic substance in step oxidized waste water, thus realize the catalytic ozonation of waste water.In the present embodiment, if described catalyst layer 7 by
Dry beaded catalyst stacking is formed, and the particle diameter of described catalyst is between 2mm ~ 6mm so that catalyst, waste water and ozone have relatively
Big contact area, it is possible to be effectively improved catalytic ozonation effect；Space between pellet type catalyst is moderate simultaneously, does not allows
Easily block and be easy to rinse.
Described air cloth device of air 8 includes being positioned at the air gas pipe 81 below described catalyst layer 7 and described air cloth
The air intake duct 82 of gas device 81 connection.When continuous operating device for catalyzing and oxidating ozone 100 runs, air is constantly through sky
Gas gas pipe 81 enters in the second reactor 5, and air flows from bottom to top and is rinsed catalyst layer 7 continuously, from
And make catalyst surface keep cleaning and the most contaminated.
In the present embodiment, described air gas pipe 81 is located in described bed course 6, gives described air cloth by described bed course 6
Gas device 81 provides and supports and fixing, in other embodiments, it is also possible to arrange other fixed structures and fix described air gas pipe
81.The air mass flow that described air cloth device of air 8 provides in described second reactor 5 is between 5 m3.m-2.h-1 ~ 15m3.m-2.h-1, i.e. per hour through the cross-sectional area 1m of catalyst layer 72Air capacity be 5 m3~ 15m3, the cross section of catalyst layer 7
Amass namely the cross-sectional area of the second reactor 5.
Further, described continuous operating device for catalyzing and oxidating ozone 100 also includes carrying in described second reactor 5
For the auxiliary ozone air intake installation 10 of ozone, described auxiliary ozone air intake installation 10 includes being arranged at bottom described catalyst layer 7
The auxiliary auxiliary ozone air inlet pipe 102 that connects of ozonation aerated device 101 device ozonation aerated with described auxiliary 101.Smelly by auxiliary
Oxygen air intake installation 10 can be adjusted flexibly ozone and add, and effectively prevent the feelings causing water outlet to deteriorate because system influent quality is severe
Condition, it is ensured that stablizing of oxidation efficiency, makes oxidation unit have stronger impact resistance.It addition, filled by main ozone air inlet
Put 3 and assist ozone air intake installation 10 to be dividedly in some parts ozone, main ozone air intake installation 3 the ozone elder generation added and having in waste water
Machine thing reacts, and decreases the content of the ozone dissolved in waste water to a certain extent, auxiliary ozone air intake installation 10 add
Mix with waste water after ozone so that ozone and the good mixing effect of waste water, improve the utilization rate of ozone.
Described auxiliary ozone air intake installation 10 is optionally turned on and off, and when influent quality is more severe, opens
Auxiliary ozone air intake installation 10, ozone enters through assisting ozonation aerated device 101 to discharge from auxiliary ozone air inlet pipe 102, makes more
Ozone participate in catalytic oxidation, thus ensure the treatment effect of waste water.
Use the continuous operating catalytic ozonation method of above-mentioned continuous operating device for catalyzing and oxidating ozone 100, bag
Include following steps: open influent waste water device 2 so that waste water enters the first reactor 1 from influent waste water device 2 continuously, and
Flow from top to bottom in described first reactor 1；Open main ozone air intake installation 3, provide to described first reactor 1 inner bottom part
Waste water counter current contacting in ozone, ozone and the first reactor 1, is on the one hand made in a part of ozone and waste water by strengthening mass transfer
Organic substance reaction, on the other hand make part ozone be dissolved in waste water, and it be anti-to flow into second with waste water by described linker 4
Answering device 5, waste water bottom-up flowing in the second reactor 5 sequentially passes through bed course 6, catalyst layer 7；Open air cloth device of air
8, air is provided in the second reactor 5 described in 7 times directions of described catalyst layer, air is bottom-up continuously to catalyst layer
7 are rinsed；Open discharging device 9, flow out described second reactor 5 for the water after processing and then be recycled or discharge.
Influent waste water device 2, main ozone air intake installation 3, air cloth device of air 8 can be opened simultaneously, it is also possible to successively open
Opening, its opening sequence does not do restriction and can arbitrarily change；And the general last unlatching of discharging device 9, to ensure water treatment effect.
Before use, can be vacant in continuous operating device for catalyzing and oxidating ozone 100, now need first to open waste water and enter
Water device 2, is then turned on main ozone air intake installation 3 after waste water reaches described main ozone micro-hole aerator 31 and avoids ozone to escape；
It is then turned on air cloth device of air 8 when waste water arrives catalyst layer or time higher.
Certainly, before use can also first injected clear water or process in continuous operating device for catalyzing and oxidating ozone 100
The water crossed, now, influent waste water device 2, main ozone air intake installation 3, air cloth device of air 8, discharging device 9 can be opened simultaneously
Open.
Wherein, dissolved with the waste water of ozone during flowing through catalyst layer 7, ozone produces hydroxyl under the effect of catalyst
Base free radical, by the Organic substance in the further oxidized waste water of hydroxyl radical free radical, thus realizes the catalytic ozonation of waste water, oxygen
Dissolve water to flow to top and discharge through discharging device 9.
Air is with 5 m3.m-2.h-1 ~ 15m3.m-2.h-1Backwash rate enter also from air intake duct 82 continuously
Discharge through air gas pipe 81, continuously catalyst layer 7 be rinsed so that catalyst surface keep cleaning and not
Contaminated.
Further, in the embodiment with described auxiliary ozone air intake installation 10, when influent quality is more severe,
Opening auxiliary ozone air intake installation 10, ozone enters through assisting ozonation aerated device 101 to discharge from auxiliary ozone air inlet pipe 102, makes
More ozone participates in catalytic oxidation, thus ensures the treatment effect of waste water.According to the impurity contained in water inlet, Organic substance
Kind and how many, can optionally open or close described auxiliary ozone air intake installation 10 containing with suitably regulation ozone
Amount.
In sum, the continuous operating device for catalyzing and oxidating ozone 100 of the present invention, by main ozone air intake installation 3 He
Air cloth device of air 8, on the one hand improves gas-liquid mass transfer effect, on the other hand achieves the continual rinsing to catalyst layer 7, has
Effect prevents the pollution of catalyst, makes the continuous operating device for catalyzing and oxidating ozone 100 continuous not parking operation of energy, cancels simultaneously
Backwashing system, simplifies structure.It addition, by arranging auxiliary ozone air intake installation 10, ozone can be adjusted flexibly and add, effectively
Prevent the situation causing water outlet to deteriorate because system influent quality is severe, it is ensured that stablizing of oxidation efficiency, make oxidation unit
There is stronger impact resistance.
Above example is only in order to illustrate technical scheme and unrestricted, although with reference to preferred embodiment to this
Bright it is described in detail, it will be understood by those within the art that, technical scheme can be modified
Or equivalent, without deviating from the spirit and scope of technical solution of the present invention.
Claims (10)
1. a continuous operating device for catalyzing and oxidating ozone, it is characterised in that: include the first reactor, be connected to the first reaction
Influent waste water device above device, provide the main ozone air intake installation and described the of ozone to described first reactor inner bottom part
The second reactor that one reactor is arranged side by side, connect connecting of described first reactor and described second reactor from bottom
Device, be positioned at the second reactor inner bottom part bed course, be positioned at the catalyst layer above described bed course, under described catalyst layer direction
The air cloth device of air of air is provided in described second reactor, is connected to the discharging device above described second reactor.
Continuous operating device for catalyzing and oxidating ozone the most according to claim 1, it is characterised in that: described main ozone air inlet
Device includes the master that the main ozone micro-hole aerator being positioned at the first reactor inner bottom part connects with described main ozone micro-hole aerator
Ozone air inlet pipe.
Continuous operating device for catalyzing and oxidating ozone the most according to claim 1, it is characterised in that: described air gas distribution fills
Put and include being positioned at the air intake duct that the air gas pipe below described catalyst layer connects with described air gas pipe.
Continuous operating device for catalyzing and oxidating ozone the most according to claim 3, it is characterised in that: described air gas pipe
It is located in described bed course.
Continuous operating device for catalyzing and oxidating ozone the most according to claim 1, it is characterised in that: described catalyst layer by
Some beaded catalysts stacking is formed.
Continuous operating device for catalyzing and oxidating ozone the most according to claim 5, it is characterised in that: the grain of described catalyst
Footpath is between 2mm ~ 6mm.
7. according to the continuous operating device for catalyzing and oxidating ozone described in any one in claim 1 ~ 6, it is characterised in that: institute
Stating continuous operating device for catalyzing and oxidating ozone also includes providing the auxiliary ozone air inlet of ozone to fill in described second reactor
Putting, described auxiliary ozone air intake installation includes being arranged at the ozonation aerated device of the auxiliary bottom described catalyst layer and described auxiliary
The auxiliary ozone air inlet pipe of ozonation aerated device connection.
8. in a claim 1 ~ 6, the continuous operating of continuous operating device for catalyzing and oxidating ozone described in any one is smelly
Oxygen catalysed oxidation processes, it is characterised in that: comprise the steps:
Opening influent waste water device, waste water enters the first reactor from influent waste water device continuously, and at described first reactor
Flow the most from top to bottom；
Open main ozone air intake installation and provide ozone, the waste water in ozone and the first reactor to described first reactor inner bottom part
The second reactor bottom-up flowing in the second reactor is flowed into waste water by described linker after counter current contacting；
Opening air cloth device of air and provide air under described catalyst layer in the second reactor described in direction, air is bottom-up
Continuously catalyst layer is rinsed；
Open the water after discharging device makes process and flow out described second reactor.
Continuous operating catalytic ozonation method the most according to claim 8, it is characterised in that: described air gas distribution fills
Put the air mass flow provided in described second reactor between 5 m3.m-2.h-1 ~ 15m3.m-2.h-1。
Continuous operating catalytic ozonation method the most according to claim 8, it is characterised in that: described continuous operation
Formula device for catalyzing and oxidating ozone also includes the auxiliary ozone air intake installation providing ozone in described second reactor, described auxiliary
Ozone air intake installation includes being arranged at the ozonation aerated device of the auxiliary bottom described catalyst layer and the ozonation aerated device of described auxiliary connects
Logical auxiliary ozone air inlet pipe；Described continuous operating catalytic ozonation method also includes: open described auxiliary ozone air inlet
Device, provides ozone in described second reactor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610801659.6A CN106186279B (en) | 2016-09-05 | 2016-09-05 | Continuous operation type ozone catalytic oxidation device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610801659.6A CN106186279B (en) | 2016-09-05 | 2016-09-05 | Continuous operation type ozone catalytic oxidation device and method |
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| CN106186279A true CN106186279A (en) | 2016-12-07 |
| CN106186279B CN106186279B (en) | 2023-07-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108793382A (en) * | 2018-06-06 | 2018-11-13 | 东南大学 | A kind of filler modularized reactor of ozone catalytic |
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