CN206232465U - A kind of device for catalyzing and oxidating ozone for being applied to organic wastewater with difficult degradation thereby treatment - Google Patents
A kind of device for catalyzing and oxidating ozone for being applied to organic wastewater with difficult degradation thereby treatment Download PDFInfo
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- CN206232465U CN206232465U CN201621124221.0U CN201621124221U CN206232465U CN 206232465 U CN206232465 U CN 206232465U CN 201621124221 U CN201621124221 U CN 201621124221U CN 206232465 U CN206232465 U CN 206232465U
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Abstract
The utility model is related to a kind of device for catalyzing and oxidating ozone for being applied to organic wastewater with difficult degradation thereby treatment, including catalytic tower and oxidation pond two parts, organic wastewater to sequentially enter catalytic tower, oxidation pond and carry out ozonation treatment, it is characterised in that：The tower top of catalytic tower is provided with spray water inlet pipe, the bottom of towe of catalytic tower is provided with ozone and compressed air enters pipe, the bottom of towe of catalytic tower is provided with outlet pipe, the bottom of pond of oxidation pond is provided with water inlet pipe, ozone and compressed air and enters pipe, the Chi Ding of oxidation pond is provided with perforation outlet pipe, catalytic tower and oxidation pond top are equipped with exhaust gas collecting pipe, and exhaust gas collecting pipe is connected with ozone tail gas destructor.The utility model simple structure, it is artificial easy to operate, by selecting effective catalyst, optimization catalyst fixed form, improve ozone dosing method, ozonisation efficiency is improved, ozone consumption is reduced, so as to reduce the cost and energy consumption of sewage disposal.
Description
Technical field：
The utility model is related to a kind of device for catalyzing and oxidating ozone for being applied to organic wastewater with difficult degradation thereby treatment, is applied to Jiao
Change Sewage advanced treatment unit, while being applied to the industries and percolate etc. such as oil, printing and dyeing, Coal Chemical Industry contains pollutant concentration
Height, stable chemical nature, it is difficult to biodegradable organic wastewater treating system.
Background technology：
Because ozone is in sterilization, decolourizes and removal persistence dissolved organic carbon aspect has the advantage that, be widely used in
Sewage treatment area.But significant COD removal efficiency cannot be obtained in reasonable time using the independent oxidation technology of ozone,
When COD degradation to a certain extent, even if lifting ozone dosage cannot also improve result.Catalytic ozonation is to send out in recent years
A kind of new ozone high grade oxidation technology that exhibition is got up, individually aoxidizes compared to ozone, and it is remarkably improved COD clearances,
Reach lower concentration limit.Its reaction mechanism is aoxidized using a large amount of OH (hydroxyl radical free radical) produced in course of reaction
Organic matter in decomposition water is so as to reach purification of water quality.OH is very active, and reaction rate constant is usually 108~1010moll- 1s-1, belong to non-selective transient response.According to the difference of catalyst form, catalytic ozonation is divided into two classes：In aqueous
Add the homogeneous ozone oxidation of some dissolubility transition metal ions and by solid metallic, metal oxide supported on carrier
Heterogeneous ozone oxidation.
Coking chemical waste water usually contains phenol, cyanide, the sulphur cyanogen of high concentration in the production technology of coking and byproduct
Compound and ammonia nitrogen, while also contain being difficult to the polycyclic aromatization such as the heterocyclic compounds such as biodegradable oils, pyridine and biphenyl, naphthalene
Compound (PAHs).Using the handling process of " pretreatment+biochemical treatment+coagulating sedimentation " more than existing coal chemical enterprise waste water processing station,
Country issues and implements for 2012《Coking chemistry emission of industrial pollutants standard》(GB16171-2012), new standard is arranged pollutant
Put index and propose requirement higher, if continue be difficult to using original handling process effluent quality it is up to standard.Clean and effective it is smelly
Oxygen catalytic oxidation technique regards as water prevention and cure of pollution advanced technology by country, it is adaptable to Treatment of Coking Effluent upgrading.
Be currently used for the device for catalyzing and oxidating ozone of wastewater treatment, more in the form of contact-oxidation pool, by flow shape,
The influence of water quality and disperser, the ozone into contact-oxidation pool is difficult to be fully absorbed, and causes ozone utilization rate not high, water
Matter is difficult up to standard.
The content of the invention：
The purpose of this utility model is directed to heterogeneous catalytic ozonation technique, there is provided it is organic that one kind is applied to difficult degradation
The device for catalyzing and oxidating ozone of wastewater treatment, by filling effective catalyst in device of the present utility model, optimizes catalyst
Fixed form, improves ozone dosing method, and reach more rational " solid catalyst-ozone gas-waste water " three are in contact
Reaction condition, improves ozonisation efficiency, ozone consumption is reduced, so as to reduce the cost and energy consumption of sewage disposal.
The technical solution of the utility model is：
A kind of device for catalyzing and oxidating ozone for being applied to organic wastewater with difficult degradation thereby treatment, including catalytic tower and oxidation pond two
Point, organic wastewater sequentially enters catalytic tower, oxidation pond and carries out ozonation treatment, it is characterised in that：The tower top of catalytic tower is provided with spray
Water inlet pipe is drenched, the bottom of towe of catalytic tower is provided with ozone and compressed air enters pipe, and the bottom of towe of catalytic tower is provided with outlet pipe, oxidation pond
Bottom of pond is provided with water inlet pipe, ozone and compressed air and enters pipe, and the Chi Ding of oxidation pond is provided with perforation outlet pipe, catalytic tower and oxidation pond
Top is equipped with exhaust gas collecting pipe, and exhaust gas collecting pipe is connected with ozone tail gas destructor.Organic wastewater sprays from the tower top of catalytic tower
Drench and enter in tower, from top to bottom, ozone and compressed air enter in tower water (flow) direction from catalytic tower bottom, through having that catalytic tower is processed
Machine waste water flows out from the bottom of towe of catalytic tower, and enters in oxidation pond from the bottom of pond of oxidation pond, and ozone and compressed air are from oxidation pond
Bottom enters in oxidation pond, and the organic wastewater after the treatment in oxidized pond passes through perforated pipe water outlet, catalytic tower and oxygen from oxidation pond top
Change pond top and be equipped with exhaust gas collecting pipe, the ozone tail gas of collection after vent ozone destructor by emptying.
Loaded in described catalytic tower and porous prilled carbon-based catalysis is loaded in honeycomb metal base catalyst, oxidation pond
Agent, honeycomb metal base catalyst, porous prilled carbon-supported catalysts are directly bought from market.
It is a kind of to be using the method for device for catalyzing and oxidating ozone for being applied to organic wastewater with difficult degradation thereby treatment：(1), organic waste
After water is through biochemical treatment and filtering, into catalytic tower, waste water drenches from catalytic tower top spray and enters in tower, water (flow) direction from top to bottom,
Ozone and compressed air enter from catalytic tower bottom, by observing flowmeter and tower body liquid level gauge, determine flow of inlet water and Ta Nei liquid
Position height, adjusts the aperture of Inlet and outlet water valve, reaches design discharge and expected liquid level, and the water outlet of catalytic tower enters oxidation pond；Have
Machine waste water, ozone and compressed air enter reaction zone in oxidation pond from oxidation pond bottom, and organic wastewater to oxidation pond top passes through
Perforated pipe water outlet, catalytic tower and oxidation pond top are equipped with exhaust gas collecting pipe, and the ozone tail gas of collection pass through vent ozone destructor
After empty.
Catalytic tower and oxidation pond are periodically backwashed according to effluent quality and the cycle of operation, backwash is using " gas is anti-
Wash (3min)-air water simultaneously backwash (3min)-water backwash (20min) " operator scheme.Gas backwash uses compressed air, pressure
It is required that 0.4MPa≤P≤0.5MPa, backwash water water quality requirement：Suspension≤10mg/L, COD≤150mg/L.
The utility model beneficial effect：
The utility model simple structure, it is artificial easy to operate, fill efficient catalytic by device of the present utility model
Agent, optimizes catalyst fixed form, improves ozone dosing method, reaches more rational " solid catalyst-ozone gas-useless
The three-phase haptoreaction condition of water ", improves ozonisation efficiency, reduces ozone consumption, thus reduce the cost of sewage disposal with
Energy consumption.
Brief description of the drawings：
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is oxidation pond structural representation of the present utility model.
Specific embodiment：
As shown in figure 1, it is a kind of be applied to organic wastewater with difficult degradation thereby treatment device for catalyzing and oxidating ozone, including catalytic tower and
Oxidation pond two parts, organic wastewater sequentially enters catalytic tower, oxidation pond and carries out ozonation treatment, it is characterised in that：Catalytic tower
Tower top is provided with spray water inlet pipe, and the bottom of towe of catalytic tower is provided with ozone and compressed air enters pipe, and the bottom of towe of catalytic tower is provided with water outlet
Pipe, the bottom of pond of oxidation pond is provided with water inlet pipe, ozone and compressed air and enters pipe, and the Chi Ding of oxidation pond is provided with perforation outlet pipe, urges
Change tower and oxidation pond top is equipped with exhaust gas collecting pipe, exhaust gas collecting pipe is connected with ozone tail gas destructor.Organic wastewater is from urging
The tower top spray for changing tower enters in tower, and from top to bottom, ozone and compressed air enter in tower water (flow) direction from catalytic tower bottom, through urging
The organic wastewater for changing tower treatment flows out from the bottom of towe of catalytic tower, and enters in oxidation pond from the bottom of pond of oxidation pond, ozone and compression
Air enters in oxidation pond from oxidation pond bottom, and the organic wastewater after the treatment in oxidized pond is gone out from oxidation pond top by perforated pipe
Water, catalytic tower and oxidation pond top are equipped with exhaust gas collecting pipe, and the ozone tail gas of collection after vent ozone destructor by emptying.Urge
The structure for changing tower and oxidation pond is existing structure；Honeycomb metal base catalyst is loaded in described catalytic tower, is filled out in oxidation pond
Porous prilled carbon-supported catalysts are filled, honeycomb metal base catalyst, porous prilled carbon-supported catalysts are directly purchased from market
Buy.
Catalytic tower water inlet is using from top to bottom water distribution uniformity, O by the way of spraying3, compressed air entered by catalysis tower bottom,
Gas distribution spreads titanium plate aerator using disc type micropore, and current, air-flow are inversely moved, and mixing wastewater with air is abundant；Design liquid-gas ratio 2:1,
Gas upflow velocity is less than 4mm/s.Honeycomb metal base catalyst point two-layer is arranged in catalytic tower middle part, be conducive to water,
Gas medium is fully contacted, hardly degraded organic substance in efficiently catalyzing and oxidizing waste water.Catalytic tower uses 316L stainless steels, sets respectively
Put water inlet, ozone inlet, gas backwash air inlet, water outlet/backwash water inlet, backwash discharge outlet, exhaust port and overflow
The interfaces such as mouth.Wherein exhaust port is connected to ozone tail gas destructor, and overflow water outlet is connected to oxidation pond.
The structure of oxidation pond as shown in Fig. 2 the oxidation pool size determines according to water and ozone with the time of contact of water,
It is required that being not less than 30min.The pond of oxidation pond is more than 5m deeply, is divided into haptoreaction area and exhalant region, Chi Ding sealings, in case tail gas leaks
Go out.Waste water and O3, compressed air enter from the bottom of oxidation pond, distribution grid is made using isostatic pressed POROUS TITANIUM PLATE, with excellent
Corrosion resistance, lightweight, intensity are high, bubble is uniform, the advantages of do not block.The middle part carbon-based catalysis of filler particles shape of oxidation pond
Further be decomposed into for hardly degraded organic substance by effects such as oxidation, absorption, filterings by catalyst filling layer by agent, waste water
Small-molecule substance, carbon dioxide and water, greatly reduce the organic matter in waste water.The top of oxidation pond is installed by ozone tail gas destruction
Device.Residual ozone tail gas is extracted out by blower fan, and entering tail gas after temperature is raised by a preheating band destroys band, then by urging
Change failure mode by ozone layer destroying.
Catalytic tower and oxidation pond are periodically backwashed according to effluent quality and the cycle of operation, backwash is using " gas is anti-
Wash (3min)-air water simultaneously backwash (3min)-water backwash (20min) " operator scheme.Gas backwash uses compressed air, pressure
It is required that 0.4MPa≤P≤0.5MPa, backwash water water quality requirement：Suspension≤10mg/L, COD≤150mg/L.
The utility model method is applied to the flat coking of coal waste water station advanced treating of Wuhan Iron and Steel Plant, water outlet COD is less than 60mg/L, surely
Surely reach《Coking chemistry emission of industrial pollutants standard》(GB16171-2012) the indirect discharge standard (COD of table 3<80mg/L).
Claims (3)
1. it is a kind of to be applied to the device for catalyzing and oxidating ozone that organic wastewater with difficult degradation thereby is processed, including catalytic tower and oxidation pond two
Point, organic wastewater sequentially enters catalytic tower, oxidation pond and carries out ozonation treatment, it is characterised in that：The tower top of catalytic tower is provided with spray
Water inlet pipe is drenched, the bottom of towe of catalytic tower is provided with ozone and compressed air enters pipe, and the bottom of towe of catalytic tower is provided with outlet pipe, oxidation pond
Bottom of pond is provided with water inlet pipe, ozone and compressed air and enters pipe, and the Chi Ding of oxidation pond is provided with perforation outlet pipe, catalytic tower and oxidation pond
Top is equipped with exhaust gas collecting pipe, and exhaust gas collecting pipe is connected with ozone tail gas destructor.
2. according to claim 1 to be applied to the device for catalyzing and oxidating ozone that organic wastewater with difficult degradation thereby is processed, its feature exists
In：Honeycomb metal base catalyst is loaded in described catalytic tower.
3. according to claim 1 to be applied to the device for catalyzing and oxidating ozone that organic wastewater with difficult degradation thereby is processed, its feature exists
In：Porous prilled carbon-supported catalysts are loaded in the oxidation pond.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621124221.0U CN206232465U (en) | 2016-10-14 | 2016-10-14 | A kind of device for catalyzing and oxidating ozone for being applied to organic wastewater with difficult degradation thereby treatment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621124221.0U CN206232465U (en) | 2016-10-14 | 2016-10-14 | A kind of device for catalyzing and oxidating ozone for being applied to organic wastewater with difficult degradation thereby treatment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107902750A (en) * | 2017-12-26 | 2018-04-13 | 山东九思环保工程有限公司 | A kind of novel ozone catalysis oxidation aerating filter |
| CN110304769A (en) * | 2019-08-16 | 2019-10-08 | 天津安禹水利工程有限公司 | A kind of catalytic ozonation tower for treatment of dyeing wastewater |
-
2016
- 2016-10-14 CN CN201621124221.0U patent/CN206232465U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107902750A (en) * | 2017-12-26 | 2018-04-13 | 山东九思环保工程有限公司 | A kind of novel ozone catalysis oxidation aerating filter |
| CN110304769A (en) * | 2019-08-16 | 2019-10-08 | 天津安禹水利工程有限公司 | A kind of catalytic ozonation tower for treatment of dyeing wastewater |
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