CN206500041U - Ozone oxidation pond tail gas recirculation system - Google Patents
Ozone oxidation pond tail gas recirculation system Download PDFInfo
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- CN206500041U CN206500041U CN201720163142.9U CN201720163142U CN206500041U CN 206500041 U CN206500041 U CN 206500041U CN 201720163142 U CN201720163142 U CN 201720163142U CN 206500041 U CN206500041 U CN 206500041U
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- oxidation pond
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Abstract
The utility model provides a kind of ozone oxidation pond tail gas recirculation system, including：Ozone generator, ozone oxidation pond, ozone destruction unit, venturi ejector, water circulating pump, synergistic nozzle and contact-oxidation pool；The inlet end in the outlet side connection ozone oxidation pond of ozone generator, the outlet side connection ozone destruction unit inlet end in ozone oxidation pond, the outlet side of ozone destruction unit connects the inlet end of venturi ejector, the water inlet end of venturi ejector connects the water intake end of water circulating pump, the water intake end of water circulating pump is inserted below contact-oxidation pool liquid level by the first conduit, and the output end of venturi ejector connects the synergistic nozzle being arranged at below contact-oxidation pool liquid level by the second conduit.The utility model in contact-oxidation pool, economizes on resources ozone oxidation pond recycling tail gas compared with air aeration, and install convenient, it is easy to safeguard.
Description
Technical field
The utility model is related to field of waste water treatment, more particularly to a kind of ozone oxidation pond tail gas recirculation system.
Background technology
At present, waste water has been handled for many years using Ozonation in wastewater treatment equipment.Because ozone is useless in processing
Have during water and be free of toxic by-products in strong decolorizing effect, raising hard-degraded substance biodegradability, discharge water and do not generate chemistry
The advantages of sludge, the ozone application increased popularity in waste plant tertiary treatment.Sewage drainage standard is constantly lifted in recent years, smelly
Biodegradability and reduce waste water that oxygen high-level oxidation technology be used in many medium-sized and large-scale processing unit improve waste water
Colourity, rear end coordinates other biological biodegrading process further to reduce COD etc..
Ozone is a kind of unstable, labile strong oxidizer, generally requires making in site ozone.Mass produce ozone
Usual method be voltolising method, ozone is manufactured by the source of the gas containing oxygen.The source of the gas of ozone generating-device is generally
Common four kinds of source of the gas, dry air source, oxygen-enriched source of the gas and industrial oxygen source of the gas, the configuration of above source of the gas are identical in generating means
In the case of, the ozone concentration and yield of generation are incremented by successively.Oxygen-enriched source of the gas and industrial oxygen source of the gas only may be used by generating means
To produce 5%-15% ozone, after ozone oxidation reaction, a large amount of unreacted oxygen are still contained in residual exhaust.
Oxygen-enriched tail gas containing high-concentration oxygen through ozone breaker remove ozone it is latter as be directly discharged into air；So do and not only waste
A large amount of oxygen resources, and production cost is higher.
Although having developed some technologies in recent years to recycle the oxygen being present in oxygen-enriched tail gas, existing
In technology, dry, purify, compress and ship the programs such as oxygen-enriched tail gas and oxygen is recycled and is separated, pilot process is excessively caused
Oxygen is lost in seriously, and related cost is too high, is not easy to commercialization.
Utility model content
The utility model embodiment provides a kind of ozone oxidation pond tail gas recirculation system, to reduce oxygen resource wave
Take, reduce production cost, the system includes：
Ozone generator, ozone oxidation pond, ozone destruction unit, venturi ejector, water circulating pump, synergistic nozzle, connect
Touch oxidation pond and contact filler；
The inlet end in the outlet side connection ozone oxidation pond of ozone generator, the outlet side connection ozone in ozone oxidation pond is broken
The inlet end of bad element, the outlet side of ozone destruction unit connects the inlet end of venturi ejector, and venturi ejector enters
Water end (W.E.) connects the water side of water circulating pump, and the water inlet end of water circulating pump is inserted under catalytic oxidation pit level by the first conduit, text
The output end of ejector is connected by the second conduit with the synergistic nozzle being arranged under catalytic oxidation pit level in mound, contacts filler
It is arranged in contact-oxidation pool.
In one embodiment, contact-oxidation pool bottom is additionally provided with air aeration device.
In one embodiment, in addition to air exhauster, the inlet end of air exhauster is connected with the outlet side of ozone destruction unit, taken out
The outlet side of blower fan is connected with the inlet end of venturi ejector.
Dissolved oxygen concentration sensor is provided with one embodiment, in contact-oxidation pool.
In one embodiment, in addition to controller, controller is respectively coupled to water circulating pump, air aeration device, exhausting
Machine, ozone generator and dissolved oxygen concentration sensor.
In one embodiment, the work air quantity and the oxygen-enriched tail gas yield phase in the ozone oxidation pond of the air exhauster
Together.
In one embodiment, the distance between the size of synergistic nozzle and venturi ejector and synergistic nozzle are directly proportional.
In one embodiment, in addition to clarifier and waste tank；The water inlet end of clarifier and the water side of contact-oxidation pool
Connection, the water side of clarifier is connected with the water inlet end in ozone oxidation pond, and the sludge outlet side of clarifier is connected with waste tank.
Ozone oxidation pond tail gas recirculation system in the utility model embodiment, ozone oxidation pond tail gas is used to contact
Oxidation pond is oxygenated, so as to be used as the source of oxygen of contact-oxidation pool, raising reaction effect by the use of the oxygen-enriched tail gas that ozone oxidation pond is produced
Rate, reduces the oxygen wasting of resources, and can reduce cost of investment and operating cost.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.In the accompanying drawings：
Fig. 1 is the structural representation of the ozone oxidation pond tail gas recirculation system of the utility model embodiment.
Embodiment
It is right below in conjunction with the accompanying drawings for the purpose, technical scheme and advantage of the utility model embodiment are more clearly understood
The utility model embodiment is described in further details.Here, schematic description and description of the present utility model is used to solve
The utility model is released, but is not intended as limiting of the present utility model.
Inventor has found that prior art can produce the richness containing a large amount of oxygen when waste water carries out Ozonation purification
Oxygen tail gas, and the oxygen-enriched tail gas is carried in strange land after being directly discharged into air as ozone destruction unit processing is latter or being collected
It is pure recycle, there is presently no the reacted oxygen-enriched waste gas utilization of Ozonation in biological contact oxidation process processing waste water,
To the technical scheme of the direct recycling of oxygen.A large amount of oxygen are needed during biological contact oxidation process processing waste water, profit
Bio-contact oxidation reaction is carried out with oxygen to wastewater purification, the oxidation operation in waste water is decomposed, purification mesh is reached
's.Currently available technology is general to solve the problems, such as oxygen supply in contact-oxidation pool by air aeration device, and contact oxidation method purification is useless
Water is typically to be carried out in contact-oxidation pool, and contact filler is set in contact-oxidation pool, by setting air aeration in bottom of pond
Device is oxygenated to waste water, and biological oxidation work is carried out using the biomembrane being grown on filler and the oxygen being dissolved in water
With purification waste water.However, oxygen concentration is relatively low in air, cause reaction efficiency in contact-oxidation pool not high, and air aeration is filled
Put to also have in the course of the work and easily block, the shortcomings of power consumption is higher.
The utility model provides a kind of ozone oxidation pond tail gas recirculation system, the reality of the utility model combination sewage disposal
Border experience, it is proposed that recycling after the tail gas clean-up of ozone oxidation pond, is used for contact oxidation method wastewater treatment by oxygen-enriched tail gas
The technical scheme in stage, the program can reduce the waste of the oxygen-enriched tail gas resource in ozone oxidation pond, and contact-oxidation pool can be solved again
Oxygen supply problem, reduce production cost.
During Fig. 1 is the utility model embodiment, a kind of structural representation of ozone oxidation pond tail gas recirculation system, bag
Include：
Ozone generator 101, ozone oxidation pond 102, ozone destruction unit 103, venturi ejector 105, water circulating pump
106th, synergistic nozzle 107, contact-oxidation pool 108 and contact filler 109；
The inlet end in the outlet side connection ozone oxidation pond 102 of ozone generator 101, the outlet side in ozone oxidation pond 102
Connect the inlet end of ozone destruction unit 103, the air inlet of the outlet side connection venturi ejector 105 of ozone destruction unit 103
End, the water inlet end of venturi ejector 105 connects the water side of water circulating pump 106, and the water inlet end of water circulating pump 106 passes through conduit
Insert below contact-oxidation pool 108 liquid level, venturi ejector 105 output end is by conduit and is arranged at contact-oxidation pool
Synergistic nozzle 107 under 105 liquid levels is connected, and contact filler 109 is arranged in contact-oxidation pool 108.
The operation principle of the ozone oxidation pond tail gas recirculation system of the utility model embodiment is：Oxygen-enriched source of the gas or work
Industry oxygen enters the ozone generator 101 that ozone is manufactured using oxygen by inlet end, occurs by voltolising method in ozone
The oxygen-rich mixture stream containing a small amount of ozone and a large amount of oxygen is produced after being reacted in device 101, oxygen-rich mixture stream is sent out by ozone
The outlet side of raw device 101 and ozone oxidation pond inlet end enter the ozone oxygen for being configured to that ozone Oxidation Treatment is carried out to waste water
Change pond 102, ozone reacts with waste water in ozone oxidation pond 102, and waste water stops 30 minutes extremely about in ozone oxidation pond
50 minutes, so as to be purified and be sterilized to waste water；Waste water by reaction is discharged from the water side in ozone oxidation pond 102, is entered
Enter such as BAF and the remaining process of active carbon adsorber is handled；It is big by containing in reacted oxygen-enriched tail gas
The oxygen of amount and minimal amount of ozone, oxygen-enriched tail gas are oriented to from the outlet side in ozone oxidation pond and are configured to destroy oxygen-enriched tail gas
The ozone destruction unit 103 of middle ozone composition, to destroy very small amount ozone remaining in oxygen-enriched tail gas, is removed oxygen-enriched after ozone
Exhaust gas flow direction is configured to be formed the inlet end of the venturi ejector 105 of mixing wastewater with air stream, while water circulating pump 106 passes through
First conduit extracts 108 current in contact-oxidation pool, is oriented to the water intake end of venturi ejector 105, and from venturi ejector
The oxygen-enriched tail gas of 105 inlet ends is sufficiently mixed, and the mixing wastewater with air stream of generation is distributed to being arranged at contact by the second conduit
The synergistic nozzle 107 of the bottom of oxidation pond 108, is that contact-oxidation pool 108 is oxygenated by synergistic nozzle 107.Into contact oxygen
The waste water for changing pond is reacted with contacting the oxygen in the biomembrane and water that are grown on filler 109, by biological oxidation, will
Organic oxygen compound in waste water is decomposed, and forms the mixture of a small amount of sludge and waste water, reaches the effect of purification waste water.
Compared with prior art, the oxygen-enriched tail gas direct circulation in ozone oxidation pond is utilized in embodiment of the present utility model
In contact-oxidation pool, it is to avoid oxygen is discharged into the wasting of resources that air is caused；Meanwhile, the oxygen content in oxygen-enriched tail gas is significantly larger than
The oxygen content of air aeration, carries out oxygen supply to contact-oxidation pool using oxygen-enriched tail gas, greatly improves the anti-of contact-oxidation pool
Speed is answered, and overcomes the shortcoming that air aeration device is easily blocked, power consumption is high.
In one embodiment, because oxygen needed for contact-oxidation pool 108 is general by air aeration device 110 in the prior art
There is provided, it is smaller to change existing structure when carrying out oxygen-enriched tail gas oxygen supply transformation to contact-oxidation pool 108, original can be retained
Some air aeration devices 110, supplemental oxygen and to wash away contact filler.As shown in figure 1, the bottom of contact-oxidation pool 108
One or more air aeration devices 110 are provided with, air aeration device 110 can be with the cooperating of synergistic nozzle 107.Due to
The water quality of the processing of contact-oxidation pool 108 has a certain degree of fluctuation with water, and therefore its oxygen demand can also change, it is therefore desirable to
Being passed through the amount of the oxygen of contact-oxidation pool 108 can also change therewith.When venturi ejector 105 is to the oxygen supply of contact-oxidation pool 108
Air aeration device 110 is opened when not enough, so that the oxygen content of contact-oxidation pool 108 is better controled over, lifting waste water processing effect
Rate.
In one embodiment, as shown in figure 1, ozone oxidation pond tail gas recirculation system also includes being configured to lifting richness
The air exhauster 104 of oxygen tail gas flowing velocity in pipeline, the inlet end of air exhauster connects with the outlet side of ozone destruction unit 103
Logical, the outlet side of air exhauster 104 is connected with the inlet end of venturi ejector 105.Air exhauster 104 can provide pressure, smelly
The oxygen-enriched tail gas that oxygen oxidation pond 102 is produced is guided to the inlet end of venturi ejector 105, so as to overcome ozone oxidation pond 102
With the resistance of ducting between venturi ejector 105.
In one embodiment, dissolved oxygen concentration sensor, dissolved oxygen concentration sensor are additionally provided with contact-oxidation pool 108
Dissolved oxygen concentration for gathering each position in contact-oxidation pool, by the detection to dissolved oxygen, system can be adjusted pair in time
The oxygenation capacity of contact-oxidation pool, so that contact-oxidation pool 108 reaches preferable reaction rate., can be to catalytic oxidation in implementation
The dissolved oxygen concentration in pond 108 is monitored in real time, sets minimum dissolved oxygen concentration, if less than minimum dissolved oxygen concentration, dissolving
Oxygen concentration sensor will be alarmed, and notify systems increase oxygenation capacity.Further, can also be in contact-oxidation pool 108
Multiple positions set dissolved oxygen concentration sensor, detect the dissolved oxygen concentration of the diverse location of contact-oxidation pool 108, and respective location is molten
Solution oxygen concentration is individually oxygenated when relatively low to the position, it is ensured that the dissolved oxygen of diverse location is dense in contact-oxidation pool 108
Degree is balanced.
In one embodiment, ozone oxidation pond tail gas recirculation system also includes controller, and controller is configured to
Control the oxygen-supplying amount at each position of oxygen-enriched recycling tail gas contact-oxidation pool 108；Controller is respectively coupled to water circulating pump 106, air
Aerator 110, air exhauster 104, ozone generator 101 and dissolved oxygen concentration sensor.Controller passes through in response to being arranged at
Dissolved oxygen concentration sensor in contact-oxidation pool, adjusts the gas velocity degree processed of ozone generator 101, adjusts taking out for air exhauster 104
Air quantity, the flow velocity for adjusting water circulating pump 106 open the original air aeration device 110 of contact-oxidation pool 108, so that it is guaranteed that to institute
State abundant, the balanced oxygen supply of contact-oxidation pool 108.Wherein, the flow velocity for the water circulating pump 106 that venturi ejector 105 is connected can
It is adjusted according to the yield of the oxygen-enriched tail gas in ozone oxidation pond 102, to reach most suitable coefficient of oxygen utilization and dissolved oxygen efficiency.With
Exemplified by 8 meters of submersion depths, when the oxygen-enriched tail gas oxygen concentration in ozone oxidation pond 102 is in 85%-95%, air water volume ratio is 0.25
Hereinafter, then oxygen utilization rate can reach more than 80%, while dissolved oxygen efficiency can reach 6kgO2/Kwh；When air water volume ratio exists
Less than 0.15, then oxygen utilization rate can reach more than 88%, while dissolved oxygen efficiency can reach 4kgO2/Kwh。
In one embodiment, the oxygen-enriched tail gas in ozone oxidation pond 102 needs to keep its oxygen purity water by several aspects
It is flat：Ozone oxidation pond needs to ensure its sealing, in case air exhauster 104 is pumped into air and enters oxygen-enriched tail gas collection system；Exhausting
The work air quantity of machine 104 needs to be consistent with oxygen-enriched tail gas yield, makes the headroom holding of ozone oxidation pond 102 faint just
Pressure, excessive exhausting air quantity may cause the introducing of external air.The breather valve for being for example arranged at the top of ozone oxidation pond 102 exists
Opened in the case of the headspace pressure of ozone oxidation pond 102 is less and introduce air into headroom, so as to reduce collection
The oxygen concentration of tail gas.
In one embodiment, one or more synergistic nozzles 107, synergy spray can be set under the liquid level of contact-oxidation pool 105
The size of mouth 107 is directly proportional to the distance between venturi ejector 105 and synergistic nozzle 107, various sizes of synergistic nozzle
107 can ensure that each position aeration effect is identical, so that the dissolved oxygen concentration phase of the variant position of contact-oxidation pool 108
Together.
In one embodiment, as shown in figure 1, ozone oxidation pond tail gas recirculation system also includes clarifier 111 and waste
Groove 112：Clarifier 111, is configured to carry out the waste water after contact-oxidation pool 108 point of liquid and biomembrane sludge
From；Waste tank 112, is configured to biomembrane sludge of the storage after the separation of clarifier 111.The water inlet end of clarifier 111
Connect, the water side of clarifier 111 is connected with the water inlet end in ozone oxidation pond 102, clarify with the water side of contact-oxidation pool 108
The sludge outlet side of device 111 is connected with waste tank 112.Waste water in contact-oxidation pool produces biomembrane sludge after reaction,
Waste water containing sludge is imported into clarifier 111, clarifier 111 separates out the sludge of waste water, imported for depositing the useless of sludge
Thing groove 112, the waste water without sludge imports ozone oxidation pond 102, carries out the processing of next step.
Ozone oxidation pond tail gas recirculation system in the utility model embodiment, ozone oxidation pond tail gas is used to contact
Oxidation pond is oxygenated, so as to be used as the source of oxygen of contact-oxidation pool, reduction oxygen money by the use of the oxygen-enriched tail gas that ozone oxidation pond is produced
Source is wasted, and can reduce cost of investment and operating cost.
Further, by the use of the tail gas produced from ozone oxidation pond as source of oxygen in embodiment, and based on air
The technical scheme of aeration is compared, and can improve the efficiency that contact oxidation method handles waste water.For example, the technical scheme based on air aeration
The aeration efficiency about 2.0-4.7kgO of the middle micro-hole aerator used2/ kwh, and the venturi jet based on oxygen-enriched tail gas
The aeration efficiency of device is up to 3.0-7.0kgO2/kwh。
Further, in embodiment, the aerator based on oxygen-enriched tail gas can select the exposure of surface type or floating type
Device of air, installs facility, it is easy to safeguard and be not easily blocked compared with the immersion aerator based on air.
Further, dissolved oxygen concentration sensor and controller are set in embodiment, can be molten in waste water by detecting
Solve oxygen concentration to adjust oxygen supply, improve the reaction efficiency of waste water in contact-oxidation pool.
Further, clarifier and waste tank are set in embodiment, can be reacted with filtered wastewater by contact-oxidation pool
The sludge separated out afterwards, improves treatment effeciency of the waste water in next process.
Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect
Step is described in detail, be should be understood that and be the foregoing is only specific embodiment of the utility model, is not used to limit this
The protection domain of utility model, it is all within spirit of the present utility model and principle, any modification for being made, equivalent substitution, change
Enter, should be included within protection domain of the present utility model.
Claims (8)
1. a kind of ozone oxidation pond tail gas recirculation system, it is characterised in that including：
Ozone generator (101), ozone oxidation pond (102), ozone destruction unit (103), venturi ejector (105), circulation
Water pump (106), synergistic nozzle (107), contact-oxidation pool (108) and contact filler (109)；
The inlet end of outlet side connection ozone oxidation pond (102) of ozone generator (101), the outlet of ozone oxidation pond (102)
The inlet end of end connection ozone destruction unit (103), the outlet side connection venturi ejector of ozone destruction unit (103)
(105) inlet end, the water side of the water inlet end connection water circulating pump (106) of venturi ejector (105), water circulating pump
(106) water inlet end is inserted under contact-oxidation pool (108) liquid level by the first conduit, the output end of venturi ejector (105)
Connected by the second conduit with the synergistic nozzle (107) under contact-oxidation pool (108) liquid level, contact filler (109), which is arranged at, to be connect
Touch in oxidation pond (108).
2. ozone oxidation pond as claimed in claim 1 tail gas recirculation system, it is characterised in that contact-oxidation pool (108) bottom
Portion is additionally provided with air aeration device (110).
3. ozone oxidation pond as claimed in claim 2 tail gas recirculation system, it is characterised in that also including air exhauster (104),
The inlet end of air exhauster (104) is connected with the outlet side of ozone destruction unit (103), the outlet side of air exhauster (104) and Wen Qiu
In ejector (105) inlet end connection.
4. ozone oxidation pond as claimed in claim 3 tail gas recirculation system, it is characterised in that in contact-oxidation pool (108)
It is provided with dissolved oxygen concentration sensor.
5. ozone oxidation pond as claimed in claim 4 tail gas recirculation system, it is characterised in that also including controller, control
Device is respectively coupled to water circulating pump (106), air aeration device (110), air exhauster (104), ozone generator (101) and dissolving
Oxygen concentration sensor.
6. ozone oxidation pond as described in claim 5 tail gas recirculation system, it is characterised in that the air exhauster (104)
Work air quantity it is identical with the oxygen-enriched tail gas yield of the ozone oxidation pond (102).
7. ozone oxidation pond as claimed in claim 1 tail gas recirculation system, it is characterised in that the chi of synergistic nozzle (107)
It is very little to be directly proportional to the distance between venturi ejector (105) and synergistic nozzle (107).
8. ozone oxidation pond as claimed in claim 1 tail gas recirculation system, it is characterised in that also including clarifier (111)
With waste tank (112)；The water inlet end of clarifier (111) is connected with the water side of contact-oxidation pool (108), clarifier (111)
Water side is connected with the water inlet end of ozone oxidation pond (102), and the sludge outlet side of clarifier (111) is connected with waste tank (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720163142.9U CN206500041U (en) | 2017-02-22 | 2017-02-22 | Ozone oxidation pond tail gas recirculation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720163142.9U CN206500041U (en) | 2017-02-22 | 2017-02-22 | Ozone oxidation pond tail gas recirculation system |
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| Publication Number | Publication Date |
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| CN206500041U true CN206500041U (en) | 2017-09-19 |
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ID=59840284
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720163142.9U Active CN206500041U (en) | 2017-02-22 | 2017-02-22 | Ozone oxidation pond tail gas recirculation system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555715A (en) * | 2017-09-20 | 2018-01-09 | 上海市政工程设计研究总院（集团）有限公司 | A kind of wastewater treatment equipment and its application method |
| CN107572652A (en) * | 2017-10-23 | 2018-01-12 | 上海通凌化工有限公司 | A kind of special equipment and its control method for COD of sewage of degrading |
| CN108046530A (en) * | 2017-12-21 | 2018-05-18 | 重庆丰望环保科技有限公司 | A kind of medical waste water processing system that new contact-oxidation pool is set |
-
2017
- 2017-02-22 CN CN201720163142.9U patent/CN206500041U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555715A (en) * | 2017-09-20 | 2018-01-09 | 上海市政工程设计研究总院（集团）有限公司 | A kind of wastewater treatment equipment and its application method |
| CN107572652A (en) * | 2017-10-23 | 2018-01-12 | 上海通凌化工有限公司 | A kind of special equipment and its control method for COD of sewage of degrading |
| CN108046530A (en) * | 2017-12-21 | 2018-05-18 | 重庆丰望环保科技有限公司 | A kind of medical waste water processing system that new contact-oxidation pool is set |
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