CN207072839U - Catalytic ozonation pilot-plant - Google Patents
Catalytic ozonation pilot-plant Download PDFInfo
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- CN207072839U CN207072839U CN201720982501.3U CN201720982501U CN207072839U CN 207072839 U CN207072839 U CN 207072839U CN 201720982501 U CN201720982501 U CN 201720982501U CN 207072839 U CN207072839 U CN 207072839U
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Abstract
The utility model provides a kind of catalytic ozonation pilot-plant, including intake pump, regulation tank, elevator pump, one-level ozone reactor and the secondary ozone reactor being sequentially connected with by pipeline, wherein, the one-level ozone reactor is cylinder reactor, the bottom of the one-level ozone reactor is provided with the first aeration plate, the first packing layer is provided with above first aeration plate, the one-level ozone reactor is provided with one-level water inlet, primary effluent mouth, and the first ozone inlet being connected by pipeline with first aeration plate；The secondary ozone reactor is cylinder reactor, the bottom of the secondary ozone reactor is provided with the second aeration plate, it is provided with the second packing layer above second aeration plate, the secondary ozone reactor is provided with two level water inlet, secondary effluent mouth and and the second ozone inlet for being connected by pipeline with second aeration plate.
Description
Technical field
The utility model belongs to catalytic ozonation technical field, more particularly to a kind of catalytic ozonation pilot-plant.
Background technology
With industrial expansion, increasing industrial wastewater enters sewage network, while the city based on industrial wastewater
Sewage treatment plant of city and the sewage treatment plant of industrial park are more and more.As Environmental Protection Situation is more and more severeer, to municipal sewage
The effluent quality for the treatment of plant requires more and more stricter.In conventional sewage plants two stage treatment, biochemical treatment has eliminated greatly
The COD of part bio-degradable, remaining predominantly soluble non-degradable organic matter (nbsCOD), and with one-level A standards
Implement comprehensively, or even progressively the standard of implementation of class earth's surface four, COD are less demanding in 30mg/L for part developed area.
To water outlet COD standard more and more higher, nbsCOD brings difficult increasing to standard water discharge, is just having to this increasing
Sewage plant increases advanced treatment unit, and how advanced treatment unit realizes that nbsCOD is economical and stable removal is needed badly as one
Solve the problems, such as.
One of critical process of the high-level oxidation technology as nbsCOD in deeply treating wastewater is imperative, and conventional is advanced
Oxidation technology mainly has ozone oxidation, Fenton's reaction, catalytic wet oxidation etc..Existing Fenton process, wet raw noodles,
Although wastewater treatment efficiency can be improved to a certain extent, however exist chemical feeding quantity is big, operating cost is high, secondary pollution be present,
The shortcomings of troublesome in poeration.In addition, Fenton's reaction is present, labor intensity is big, processing cost is high, sludge is more, corrosivity is big etc. many lacks
Point, and for low strength COD poor processing effect (water outlet COD is relatively inaccessible to below 50mg/L), it is high-strength under the requirement of low cost
The high-level oxidation technology of degree can not be accomplished, such as Fenton, catalytic wet oxidation, overcritical etc..Particularly as nbsCOD in water
Excessive concentration when, the high-level oxidation technology such as Fenton process, method for dosing medicine be difficult to realize below 30mg/L COD indexs.
Ozone oxidation due to have the advantages that it is simple to operate, without medicament addition, non-secondary pollution, without sludge produce and by
The favor of water dirt researcher, its market need vigorous.Ozonation can be removed further as effective further treatment technique
Organic matter, meet increasingly strict Chinese effluent standard.But also it is faced with some problems.First, ozone in water solubility compared with
It is low, ozone is dissolved in water, improve the focus that ozone utilization ratio has become the technical research；Secondly, research
Ozone is used in combination with other technologies, and can develop the catalyst of excellent catalytic effect, long lifespan, high recycling rate；
Again, because efficiency of ozone generation is relatively low, power consumption is big, and studying the ozone generating-device of high-efficiency low energy consumption and also turning into will currently solve
One of key issue.Just there is increasing sewage plant increase advanced treatment unit for this, how advanced treatment unit is realized
NbsCOD economy and steady removal the problem of turning into a urgent need to resolve, crucial work of the high-level oxidation technology as advanced treating
One of skill is imperative, and the trend of the technical field research and development at present.Therefore, it is badly in need of developing a kind of catalytic ozonation
Device, particularly a kind of catalytic ozonation pilot-plant.
Utility model content
The purpose of this utility model is to provide a kind of catalytic ozonation pilot-plant, it is intended to solves existing ozone catalytic
Oxidation unit effect is poor, the problem of can not meeting COD Effluent criterias.
The utility model is achieved in that a kind of catalytic ozonation pilot-plant, including is sequentially connected with by pipeline
Intake pump, regulation tank, elevator pump, one-level ozone reactor and secondary ozone reactor, wherein,
The one-level ozone reactor is cylinder reactor, and the bottom of the one-level ozone reactor is provided with the first aeration
Disk, the first aeration plate top are provided with the first packing layer, and the one-level ozone reactor is provided with one-level water inlet, one-level
Delivery port, and the first ozone inlet being connected by pipeline with first aeration plate；
The secondary ozone reactor is cylinder reactor, and the bottom of the secondary ozone reactor is provided with the second aeration
Disk, the second aeration plate top are provided with the second packing layer, and the secondary ozone reactor is provided with two level water inlet, two level
Delivery port and the second ozone inlet being connected by pipeline with second aeration plate.
Preferably, the one-level ozone reactor is provided with water inlet on first, first time water inlet, the first upper water-out
Mouth, the first lower outlet, and the first ozone inlet being connected by pipeline with first aeration plate, described first is enterprising
The mouth of a river, the first upper water-out mouth are arranged on the top of first packing layer, and first time water inlet, the first lower outlet are set
In the lower section of first packing layer, and the one-level ozone reactor passes through water inlet, first time water inlet on described first
External pipe be connected with the elevator pump, the first upper water-out mouth, lower outlet external pipe interflow after with described two
Level ozone reactor is connected；
Preferably, the secondary ozone reactor is provided with water inlet on second, second time water inlet, the second upper water-out
Mouth, the second lower outlet and the second ozone inlet being connected by pipeline with second aeration plate, described second is enterprising
The mouth of a river, the second upper water-out mouth are arranged on the top of second packing layer, and second time water inlet, the second lower outlet are set
In the lower section of second packing layer, and the one-level ozone reactor passes through water inlet, second time water inlet on described second
External pipe be connected with the one-level ozone reactor.
Preferably, the one-level ozone reactor, the secondary ozone reactor include cylinder and top cover, the top cover
It is fastenedly connected with the cylinder, and the top cover is provided with gas bleeder valve.
It is further preferred that the catalytic ozonation pilot-plant also includes the waste gas being connected with the discouraged valve pipeline
Absorption plant.
Preferably, the regulation tank is provided with the pH meter threading opening for pacifying solid pH meter.
Preferably, first packing layer includes packing layer and first time packing layer on dismountable first.
Preferably, second packing layer includes packing layer and second time packing layer on dismountable second.
It is further preferred that on first packing layer, the filler bottom of first time packing layer be provided with screen tray；
And/or
On second packing layer, the filler bottom of second time packing layer be provided with screen tray.
The catalytic ozonation pilot-plant of offer of the present utility model, by setting two-stage that there is the ozone of specific structure
Reactor is set, to realize the COD efficiently removed in sewage effect so that COD concentration after catalytic ozonation can under
It is down to 30mg/L.
Brief description of the drawings
Fig. 1 is the structural representation for the device for catalyzing and oxidating ozone that the utility model embodiment provides；
Fig. 2 is the preferred structure schematic diagram for the device for catalyzing and oxidating ozone that the utility model embodiment provides.
Embodiment
In order that the technical problems to be solved in the utility model, technical scheme and beneficial effect are more clearly understood, below
In conjunction with the embodiments, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only
To explain the utility model, it is not used to limit the utility model.
With reference to Fig. 1, Fig. 2, the utility model embodiment provides a kind of catalytic ozonation pilot-plant, including passes through pipe
Intake pump 1, regulation tank 2, elevator pump 3, one-level ozone reactor 4 and the secondary ozone reactor that road is sequentially connected with, wherein,
One-level ozone reactor 4 is cylinder reactor, and the bottom of one-level ozone reactor 4 is provided with the first aeration plate 41,
The top of first aeration plate 41 is provided with the first packing layer 42, and one-level ozone reactor 4 is provided with one-level water inlet 43, primary effluent
Mouth 44, and the first ozone inlet 45 being connected by pipeline with the first aeration plate 41；
Secondary ozone reactor 5 is cylinder reactor, and the bottom of secondary ozone reactor 5 is provided with the second aeration plate 51,
The top of second aeration plate 51 is provided with the second packing layer 52, and secondary ozone reactor 5 is provided with two level water inlet 53, secondary effluent
Mouth 54 and the second ozone inlet 55 being connected by pipeline with the second aeration plate 51.
Specifically, intake pump 1 is used to pending waste water being pumped into regulation tank 2 by pipeline.
Regulation tank 2 is used to pending waste water such as municipal wastewater, plant chimney stalk, sanitary wastewater etc. processing is adjusted, with
Just the progress of follow-up catalytic ozonation is advantageous to.The adjustment effect of regulation tank 2 includes but is not limited to pH regulations, dosing, flocculation
Precipitation etc..
Regulation tank 2 is provided with waste water inlet port 21, wastewater effluent mouth 22, overfall 23 and drain 24, wherein, waste water enters
Entrance 21 is communicated by pipeline with intake pump 1, inputs pending waste water；Wastewater effluent mouth 22 is connected by pipeline with elevator pump 3,
Export the pending waste water after upon mediation；Overfall 23 is used for the water level for controlling waste liquid；Drain 24 terminates rear residual for reaction
The air defense of liquid stay.And waste water inlet port 21, wastewater effluent mouth 22, overfall 23 and drain 24 are provided with for switch
Valve, such as influent waste water valve, wastewater effluent valve, overflow valve, atmospheric valve.It is further preferred that regulation tank 2 is provided with for pacifying admittedly
The pH meter threading opening (not marked in figure) of pH meter.There is preferably reaction because COD is catalyzed in the basic conditions through ozone oxidation
Effect, therefore, the pH meter can be used for monitoring the pH in pending waste liquid, are adjusted when necessary.
The elevator pump 3 is used for the pending waste water lifting lift for coming out adjusted tank 2.
One-level ozone reactor 4 is cylinder reactor, and the bottom of one-level ozone reactor 4 is provided with the first aeration plate 41,
The top of first aeration plate 41 is provided with the first packing layer 42, and one-level ozone reactor 4 is provided with one-level water inlet 43, primary effluent
Mouth 44, and the first ozone inlet 45 being connected by pipeline with the first aeration plate 41；
Secondary ozone reactor 5 is cylinder reactor, and the bottom of secondary ozone reactor 5 is provided with the second aeration plate 51,
The top of second aeration plate 51 is provided with the second packing layer 52, and secondary ozone reactor 5 is provided with two level water inlet 53, secondary effluent
Mouth 54 and the second ozone inlet 55 being connected by pipeline with the second aeration plate 51.
One-level ozone reactor 4, secondary ozone reactor 5 are cylinder reactor, and the size of cylinder reactor is with reference in
Test-object is accurate to be set, if internal diameter is 200-600mm, high 2000-3000mm, concretely internal diameter 500mm, high 2700mm.
Specifically, contain ozone generator (not marked in figure) in catalytic ozonation pilot-plant, the ozone generation
Device generates ozone, and the first ozone reaction is respectively enterd through first ozone inlet 45, the second ozone inlet 55 by pipeline
The first aeration plate 41, the second aeration plate 51 in device, the second ozone reactor, there is provided reaction ozone.First aeration plate 41, second
Aeration plate 51 is arranged on the center of cylinder reactor, so as to improve reaction uniformity.
The top of first aeration plate 41 is provided with the first packing layer 42, and the top of the second aeration plate 51 is provided with the second packing layer
52, the first packing layer 42, the second packing layer 52 are catalyst for catalytic oxidation, preferably carrier supported catalyst, so as to provide
More preferable catalytic effect.Further, because the cylindricality height for reactor of pilot-plant is higher, once filled out in cylindricality reactor
Excessive filler is filled, difficulty is larger, it is therefore preferable that using dismountable packing layer up and down, reduces operation difficulty.Preferably, first
Packing layer 42 includes packing layer 421 and first time packing layer 422 on dismountable first.Preferably, the second packing layer 52 includes
Packing layer 521 and second time packing layer 522 on dismountable second.Upper and lower packing layer can be connected by being fastenedly connected, filler
The degree of filling can be adjusted according to actual conditions, and packing layer 521 can be partially filled with packing layer 421, second on first, can also be complete
Full packing.Certainly, dismountable packing layer is not limited to two layers, can further increase the number of plies, but based on simplified operation, guarantee gas
The consideration of close property, preferably two layers.
It is further preferred that on first packing layer 421, the filler bottom of first time packing layer 422 be provided with screen tray；
And/or on second packing layer 521, the filler bottom of second time packing layer 522 be provided with screen tray.The screen tray is used to support
Packing layer, and prevent the filler in packing layer from dropping.It is furthermore preferred that the screen tray is stainless steel screen tray.
One-level ozone reactor 4 is provided with one-level water inlet 43, primary effluent mouth 44, and secondary ozone reactor 5 is provided with
Two level water inlet 53, secondary effluent mouth 54.Wherein, one-level water inlet 43, primary effluent mouth 44 are divided on the first packing layer 42
Lower section, can be that one-level water inlet 43 is arranged at the top of the first packing layer 42, primary effluent mouth 44 is arranged at the first packing layer 42
Lower section or one-level water inlet 43 are arranged at the lower section of the first packing layer 42, and primary effluent mouth 44 is arranged at the first packing layer
42 tops；Two level water inlet 53, secondary effluent mouth 54 are divided into the upper and lower of the second packing layer 52, can be that two level water inlet 53 is set
The top of the second packing layer 52 is placed in, secondary effluent mouth 54 is arranged at the lower section of the second packing layer 52 or two level water inlet 53
The lower section of the second packing layer 52 is arranged at, secondary effluent mouth 54 is arranged at the top of the second packing layer 52, so that described pending
Waste water is whole by cylinder reactor, is advantageous to the abundant progress of catalytic oxidation.When packing layer contains dismountable multilayer
During structure, water inlet and delivery port should set up the upper and lower with multiple filling layers structure separately.It is pending due to entering through lower water inlet
Waste water, bottom ozone concentration is big, and COD concentration is also big in treatment sewage, and most of ozone is consumed by more oxidizable COD,
And top ozone concentration is small, the more difficult oxidations of COD herein, the ozone of low concentration is often helpless to it, causes the profit of ozone
Reduced with rate.It is furthermore preferred that the pending waste water flows into through upper water inlet, from lower outlet stream after catalytic ozonation
Go out, so that the pending waste water into cylinder reactor is first passed through labile COD under the conditions of the low concentration ozone of top
Remove, when further flowing through high-concentrated ozone region, under the conditions of high-concentrated ozone, drop the difficult COD compositions decomposed and remove, to carry
The utilization rate of high ozone.
As shown in Figure 2, it is preferred that one-level ozone reactor 4 is provided with water inlet 431 on first, first time water inlet
441st, the first upper water-out mouth 432, the first lower outlet 442, and the first ozone being connected by pipeline with the first aeration plate 41
Air inlet 45, water inlet 431, the first upper water-out mouth 441 are arranged on the top of the first packing layer 42, first time water inlet on first
432nd, the first lower outlet 442 is arranged on the lower section of the first packing layer 42, and one-level ozone reactor 4 passes through water inlet on first
431st, the external pipe of first time water inlet 432 is connected with elevator pump 3, the first upper water-out mouth 441, first lower outlet 442
External pipe is connected behind interflow with secondary ozone reactor 5.The pending waste water can flow into through water inlet 431 on first,
Flowed out after catalytic ozonation from the first lower outlet 442, the pending waste water can also flow through first time water inlet 432
Enter, flowed out after catalytic ozonation from the first upper water-out mouth 441, so as to improve the flexibility of Inlet and outlet water.
Preferably, secondary ozone reactor 5 is provided with water inlet 531 on second, gone out on second time water inlet 532, second
The mouth of a river 541, the second lower outlet 542 and the second ozone inlet 55 being connected by pipeline with the second aeration plate 51, second
Upper water inlet 431, the second upper water-out mouth 541 are arranged on the top of the second packing layer 52, go out under second time water inlet 532, second
The mouth of a river 542 is arranged on the lower section of the second packing layer 52, and one-level ozone reactor 4 under water inlet 531, second on second by entering
The external pipe at the mouth of a river 532 is connected with one-level ozone reactor 4.The pending waste water can flow through water inlet 531 on second
Enter, flowed out after catalytic ozonation from the second lower outlet 542, the pending waste water can also be through second time water inlet
532 flow into, and are flowed out after catalytic ozonation from the second upper water-out mouth 541, so as to improve the flexibility of Inlet and outlet water.
Preferably, one-level ozone reactor 4, secondary ozone reactor 5 include cylinder and top cover, and top cover fastens with cylinder
Connection, and top cover is provided with gas bleeder valve (the first gas bleeder valve 46, the second gas bleeder valve 56).It is described be fastenedly connected including being screwed and
Screw is fixed, and gas bleeder valve, which is used to react, to be terminated or if necessary discharge the ozone in reactor.It is further preferred that ozone catalytic
Oxidation pilot-plant also includes the exhaust gas absorption device being connected with the pipeline of gas bleeder valve 45, prevents from arranging outside ozone and causes dirt to environment
Dye.
Specific preferable, the thickness of one-level ozone reactor 4 is 20-50mm；The thickness of secondary ozone reactor 5 is 20-
50mm。
In the utility model embodiment, one-level ozone reactor 4, all openings of secondary ozone reactor 5 are provided with
Regulating valve for switch.
The catalytic ozonation pilot-plant of offer of the present utility model, by setting two-stage that there is the ozone of specific structure
Reactor is set, to realize the COD efficiently removed in sewage effect so that COD concentration after catalytic ozonation can under
It is down to 30mg/L.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (7)
- A kind of 1. catalytic ozonation pilot-plant, it is characterised in that including be sequentially connected with by pipeline intake pump, regulation Tank, elevator pump, one-level ozone reactor and secondary ozone reactor, wherein,The one-level ozone reactor is cylinder reactor, and the bottom of the one-level ozone reactor is provided with the first aeration plate, The first packing layer is provided with above first aeration plate, the one-level ozone reactor is provided with one-level water inlet, one-level goes out The mouth of a river, and the first ozone inlet being connected by pipeline with first aeration plate；The secondary ozone reactor is cylinder reactor, and the bottom of the secondary ozone reactor is provided with the second aeration plate, The second packing layer is provided with above second aeration plate, the secondary ozone reactor is provided with two level water inlet, two level goes out The mouth of a river and the second ozone inlet being connected by pipeline with second aeration plate.
- 2. catalytic ozonation pilot-plant as claimed in claim 1, it is characterised in that the one-level ozone reactor is set There are water inlet on first, first time water inlet, the first upper water-out mouth, the first lower outlet, and pass through pipeline and described first First ozone inlet of aeration plate connection, water inlet, the first upper water-out mouth are arranged on first packing layer on described first Top, first time water inlet, the first lower outlet are arranged on the lower section of first packing layer, and the one-level ozone Reactor is connected by the external pipe of water inlet on described first, first time water inlet with the elevator pump, on described first Delivery port, the external pipe of lower outlet are connected after collaborating with the secondary ozone reactor；The secondary ozone reactor is provided with water inlet on second, second time water inlet, the second upper water-out mouth, second time water outlet Mouthful and the second ozone inlet for being connected by pipeline with second aeration plate, water inlet on described second, go out on second The mouth of a river is arranged on the top of second packing layer, and second time water inlet, the second lower outlet are arranged on described second and filled out The lower section of the bed of material, and the one-level ozone reactor by water inlet on described second, second time water inlet external pipe with The one-level ozone reactor is connected.
- 3. catalytic ozonation pilot-plant as claimed in claim 1, it is characterised in that the one-level ozone reactor, institute Stating secondary ozone reactor includes cylinder and top cover, and the top cover is fastenedly connected with the cylinder, and the top cover is provided with Gas bleeder valve.
- 4. catalytic ozonation pilot-plant as claimed in claim 3, it is characterised in that trial assembly in the catalytic ozonation Put the exhaust gas absorption device for also including being connected with the discouraged valve pipeline.
- 5. catalytic ozonation pilot-plant as claimed in claim 1, it is characterised in that the regulation tank is provided with for pacifying Gu the pH meter threading opening of pH meter.
- 6. the catalytic ozonation pilot-plant as described in claim any one of 1-5, it is characterised in that first packing layer Including packing layer and first time packing layer on dismountable first；And/orSecond packing layer includes packing layer and second time packing layer on dismountable second.
- 7. catalytic ozonation pilot-plant as claimed in claim 6, it is characterised in that packing layer, described the in institute first Once the filler bottom of packing layer is provided with screen tray；And/orOn second packing layer, the filler bottom of second time packing layer be provided with screen tray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720982501.3U CN207072839U (en) | 2017-08-07 | 2017-08-07 | Catalytic ozonation pilot-plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720982501.3U CN207072839U (en) | 2017-08-07 | 2017-08-07 | Catalytic ozonation pilot-plant |
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| Publication Number | Publication Date |
|---|---|
| CN207072839U true CN207072839U (en) | 2018-03-06 |
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ID=61523211
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720982501.3U Active CN207072839U (en) | 2017-08-07 | 2017-08-07 | Catalytic ozonation pilot-plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918394A (en) * | 2018-09-04 | 2018-11-30 | 广州鹏凯环境科技股份有限公司 | A kind of experimental provision handling sewage performance for testing filler |
| CN112125387A (en) * | 2020-11-04 | 2020-12-25 | 中冶赛迪技术研究中心有限公司 | Ozone catalytic oxidation treatment device and process for wastewater |
-
2017
- 2017-08-07 CN CN201720982501.3U patent/CN207072839U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918394A (en) * | 2018-09-04 | 2018-11-30 | 广州鹏凯环境科技股份有限公司 | A kind of experimental provision handling sewage performance for testing filler |
| CN112125387A (en) * | 2020-11-04 | 2020-12-25 | 中冶赛迪技术研究中心有限公司 | Ozone catalytic oxidation treatment device and process for wastewater |
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