CN106348422A - Multistage catalytic ozonation treating device for degradation-resistant organic wastewater - Google Patents
Multistage catalytic ozonation treating device for degradation-resistant organic wastewater Download PDFInfo
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- CN106348422A CN106348422A CN201610891209.0A CN201610891209A CN106348422A CN 106348422 A CN106348422 A CN 106348422A CN 201610891209 A CN201610891209 A CN 201610891209A CN 106348422 A CN106348422 A CN 106348422A
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- catalyst
- ozone
- catalytic ozonation
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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
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a multistage catalytic ozonation treating device for degradation-resistant organic wastewater. The device comprises multistage catalytic ozonation systems, wherein each stage catalytic ozonation system is composed of an ozone distribution system and an obligate solid catalyst system above the ozone distribution system; the multistage catalytic ozonation systems are arranged in the device from bottom to top; each stage catalytic ozonation system is connected with an ozone generator through a pipeline; the ozone dosage of the multistage catalytic ozonation systems from top to bottom is gradually reduced; an ozone tail gas outlet is formed at the top of the device; the ozone tail gas outlet is connected with a tail gas breaker through the pipeline; the obligate solid catalyst systems are respectively filled with various different obligate solid catalysts and are respectively supported by catalyst supports; and the variety of the obligate solid catalysts can be determined according to the organic matter components in the wastewater. The device disclosed by the invention is combined with various catalysts, for treating the wastewater containing various degradation-resistant organic matters and being complex in components; the COD and chroma removing rate can be effectively increased; and the wastewater can be discharged after reaching the standard.
Description
Technical field
The invention belongs to industrial wastewater treatment device field is and in particular to a kind of organic wastewater with difficult degradation thereby multistage ozone catalytic oxygen
Change processing meanss.
Background technology
With the progress of social development and science and technology, China's industrial wastewater gets more and more, these waste water difficult biochemistry mostly
Degradable organic pollutant, including the organic pollutions such as polycyclic aromatic hydrocarbon, halogenated hydrocarbons, heterocycle compound, organic dyestuff, this kind of waste water
Typically there is complicated component, waste water cod height, colourity height, difficult for biological degradation and poisonous and hazardous characteristic.In recent years, ozone catalytic
Oxidation technology has become one of key technology processing organic wastewater with difficult degradation thereby.Aoxidized permissible using solid catalyst synergy ozone
Reducing reaction activity or change the reaction mechanism mechanism of reaction, thus reaching deep oxidation, going the purpose of removal organic polluter to greatest extent.
But current catalytic ozonation technology there is also some problems, is mainly reflected in following two aspects: one is ozone dosage
Greatly, utilization rate is low, leads to cost for wastewater treatment to greatly increase；Two is that obligate solid catalyst not of the same race has to difficult degradation not of the same race
Machine thing treatment effect is different, for complicated component, contains multiple hardly degraded organic substance waste water, can only using single obligate catalyst
, it is impossible to thoroughly remove Organic substance, treatment effect is unsatisfactory to remove part hardly degraded organic substance in waste water.
Content of the invention
The technical problem to be solved is to overcome the deficiencies in the prior art, utilizes obligate solid catalyst not of the same race
The characteristic different to hardly degraded organic substance treatment effect not of the same race, has invented a kind of multistage catalytic ozonation processing meanss.This
The feature of invention is the multiple obligate catalyst treatment complicated components of joint, contains multiple hardly degraded organic substance waste water, can effectively carry
High cod and chroma removal rate.
The present invention is achieved by the following technical programs:
A kind of multistage catalytic ozonation processing meanss of organic wastewater with difficult degradation thereby, including multistage catalytic ozonation system,
Every grade of catalytic ozonation system by ozone gas distribution system and is located at the obligate solid catalyst system above ozone gas distribution system
System is constituted, and every grade of catalytic ozonation system is arranged in device from bottom to top；Wherein every grade ozone gas distribution system is all by pipe
Road is connected with ozonator, is provided with regulating valve and flow between every grade of described ozone gas distribution system and ozonator
Meter, ozone dosage successively decreases multistage ozone gas distribution system step by step from bottom to top；Described device top is provided with ozone tail gas and discharges
Mouthful, described ozone tail gas outlet is connected with vent ozone destructor by pipeline；
Multistage obligate solid catalyst system loads multiple different obligate solid catalysts respectively, and is propped up by catalyst respectively
Support member support, the catalyst being wherein located at bottom of device, from the effective catalyst of larger molecular organicses of effectively degrading, is located at
The obligate catalyst having notable removal effect for certain pollutant in waste water selected by catalyst in the middle part of device, on device
, from the effective catalyst to small organic molecule and ozone with strong absorption property, obligate catalyst type can for the catalyst in portion
Depending on organic components in waste water；The upper and lower of the obligate solid catalyst system of level is respectively equipped with catalyst filling
Mouth, catalyst discharge port；
The lower section being located at described multistage ozone gas distribution system in described device is provided with water inlet pipe, evacuated tube and backwash water inlet
Pipe shares, backwash air air inlet pipe, manhole；The top setting of described multistage obligate solid catalyst system is located on described device
There are visor, outlet pipe and backwash outlet pipe.
In technique scheme, described multistage catalytic ozonation system is 3-5 level catalytic ozonation system, tool
Depending on body can be according to actual water quality situation.It is preferably 3 grades of catalytic ozonation systems, load in 3 grades of catalytic ozonation systems
The obligate solid catalyst of three kinds of differences, from top to bottom, overlying catalyst is to carry swage activated-carbon catalyst, and middle level catalyst is silicon
Diatomaceous earth loads nano iron oxide catalyst, and lower catalyst agent is activated alumina Quito item catalyst.
According to organic wastewater with difficult degradation thereby of the present invention multistage catalytic ozonation processing meanss, wherein said three-level
Bottom ozone gas distribution system, middle part ozone gas distribution system, the ozone dosage of top ozone gas distribution system in ozone gas distribution system
Than preferably 1～2:1:1/3～1.
Compared with prior art, the multistage catalytic ozonation processing meanss of organic wastewater with difficult degradation thereby of the present invention have following spy
Point:
1) in apparatus of the present invention, multistage ozone gas distribution system can make ozone uniform branch in device, makes waste water and ozone
It is sufficiently mixed, effectively improves ozone utilization rate, effectively reduce cost for wastewater treatment.
2) this device waste water is bottom in and top out, and bottom of device waste water great majority are larger molecular organicses, and content of organics
Higher, bottom of the present invention ozone gas distribution system ozone dosage is larger, so that useless Organic substance in water is sufficiently mixed with ozone, will divide greatly
Sub- Organic substance is converted into small organic molecule and lives or thorough removal.
3) the multiple obligate solid catalyst of apparatus of the present invention joint processes organic wastewater with difficult degradation thereby, not only effectively increases smelly
Oxygen the catalysis oxidation efficiency moreover it is possible to give full play to the synergism of multiple obligate solid catalysts, by different obligate solid catalysts
Characteristic effectively combine, effectively improve waste water cod, chroma removal rate.
4) present invention special project solid catalyst system is divided into multistage, loads different obligate solid catalysts respectively.It is located at dress
The catalyst in bottom set portion is selected from the effective catalyst of larger molecular organicses of effectively degrading, the catalyst in the middle part of device
There is the obligate catalyst of notable removal effect for certain pollutant in waste water, the catalyst positioned at device top is to little point
Sub- Organic substance and ozone have the effective catalyst of strong absorption property, and this device waste water is bottom in and top out, and bottom of device waste water is big
Part is larger molecular organicses, and content of organics is higher, and macromole hardly degraded organic substance is effectively gone by the obligate catalyst in bottom
Remove or be oxidized to small organic molecule；In waste water, residual organic substances rise to middle part catalytic ozonation system with current, utilize
The obligate catalyst that middle part loads has the characteristics that good decoloration performance to waste water, effectively improves waste water clearance rate；This dress
Put waste water to be gradually increasing, pollutant levels are gradually reduced, waste water finally rises to top catalytic ozonation system, now waste water
Middle organic pollution is most of to be small organic molecule, adsorbs small organic molecule and ozone using bottom effective catalyst, real
The thorough removal of existing small organic molecule.
Brief description
Fig. 1 is a kind of structural representation of the multistage catalytic ozonation processing meanss of organic wastewater with difficult degradation thereby of the present invention.
1- water inlet pipe；2- outlet pipe；3- ozone gas distribution system；4- obligate solid catalyst system；5- catalyst support member；
6- catalyst filling mouth；7- catalyst pulp cutlet；8- evacuated tube is shared with backwash water inlet pipe；9- backwash outlet pipe；10- backwash is empty
Gas air inlet pipe；11- manhole；12- visor；13- ozone tail gas outlet；14- regulating valve；15- ozonator；16- tail gas breaks
Bad device；17- ozonator.
Specific embodiment
With specific embodiment, apparatus of the present invention are further described below in conjunction with the accompanying drawings.
As shown in Figure 1, there is provided a kind of multistage catalytic ozonation processing meanss of organic wastewater with difficult degradation thereby, this device is by entering
Water pipe 1, outlet pipe 2, ozone gas distribution system 3, obligate solid catalyst system 4, catalyst support member 5, catalyst filling mouth 6,
Catalyst discharge port 7, evacuated tube and backwash water inlet pipe share 8, backwash outlet pipe 9, backwash air air inlet pipe 10, manhole 11, regard
Mirror 12, ozone tail gas outlet 13, regulating valve 14, effusion meter 15, ozonator 16, vent ozone destructor 17 form.
The internal ozone gas distribution system of organic wastewater with difficult degradation thereby shown in Fig. 1 multistage catalytic ozonation processing meanss device
3 are divided into three-level, are respectively arranged at bottom, middle part and the top of equipment, three-level ozone gas distribution system 3 ozone dosage to lower and on
Successively decrease step by step.Bottom ozone gas distribution system and middle part ozone gas distribution system ozone dosage are than for 1～2:1, middle part ozone gas distribution
System and top ozone gas distribution system ozone dosage are than for 1～3:1.Concrete ozone adds ratio according to concrete water quality situation
Fixed.It is provided with regulating valve 14 and effusion meter 15 between ozonator 16 and ozone gas distribution system 3, and be connected by pipeline.Institute
State ozone tail gas outlet 13 to be connected by pipeline with vent ozone destructor 17.
The internal obligate solid catalyst system 4 of apparatus of the present invention is divided into three-level, be respectively arranged at the bottom of equipment, middle part and
Top, the obligate solid catalyst of three kinds of differences of filling respectively；Overlying catalyst: carry swage activated-carbon catalyst；Middle level catalyst:
Tripolite loading nano ferric oxide catalyst；Lower catalyst agent: activated alumina Quito item catalyst.Obligate solid catalysis at different levels
Agent system catalytic effective time of staying (use gauge of catalyst) is 1:1:1.Obligate catalyst type can be according to organic in waste water
Depending on thing composition is carried out.
In described device, catalyst support member 5 is three sets, is respectively placed in bottom of device, middle part, top, is respectively used to support
The obligate catalyst of above-mentioned three kinds of differences.
In described device, catalyst filling mouth 6, catalyst discharge port 7 are three sets, feed for different obligate solid catalysts
Use with discharging.
Work process of the present invention is as follows:
Waste water enters this bottom of device by water inlet pipe 2, and waste water from bottom to top flows, and initially enters bottom catalytic ozonation
System, under the collective effect of ozone and activated alumina Quito item catalyst, in waste water, a part of Organic substance is removed, separately
A part of larger molecular organicses are small organic molecule in this fast degradation；Residual organic substances rise to middle part, ozone with current
Under tripolite loading nano ferrum oxide catalytic action, effectively remove chroma in waste water；When waste water flow to device top, in waste water
Organic substance is most of to be small organic molecule, using the strong absorption property to small organic molecule and ozone for the activated carbon, realizes little
The thorough removal of molecular organic；Waste water is discharged by outlet after the process of three-level catalytic ozonation system.The ozone producing
Tail gas enters vent ozone destructor 17 and is processed, it is to avoid to environment.
Embodiment 1
Tianjin chemicals production company limited day processes wastewater flow rate 240m3/ d, adopts+two grades of catalytic ozonation at present
Biochemistry is processed, and due to being affected by batch-order production, in waste water, hardly degraded organic substance composition is complex, and efflux wastewater is difficult
With up to standard.Using organic wastewater with difficult degradation thereby of the present invention multistage catalytic ozonation processing meanss, depth is carried out to secondary biochemical effluent
Process, carried out scale 10m3The pilot experiment of/d.Manufacturer's secondary biochemical effluent hydraulic detention time in device is 2h, three-level
Ozone dosage system ozone dosage to lower and upper be respectively 25-35mg/l, 20-30mg/l and 10-15mg/l, ozone concentration is
90-110mg/l.
This device water inlet cod is 95-145mg/l, average out to 110mg/l；Entering colority of water is 53-75, average out to 63.Through this
After invention device is processed, water outlet cod is 35-58mg/l, average out to 50mg/l, and clearance reaches 62%；Effluent color dilution is 35-
46, average out to 39, being capable of qualified discharge.
Embodiment 2
Guangdong printing and dyeing mill day processes wastewater flow rate 2000m3/ d, adopts secondary biochemical sewage treatment process, outer waste discharge at present
There is situation not up to standard once in a while in water.Using organic wastewater with difficult degradation thereby of the present invention multistage catalytic ozonation processing meanss to two grades of lifes
Dissolve water and carry out advanced treating, carry out scale 20m3The pilot experiment of/d.Manufacturer's secondary biochemical effluent waterpower in device is stopped
The time is stayed to be 1h, three-level ozone dosage system ozone dosage is to lower and upper be respectively 15-20mg/l, 10-15mg/l and 5-
10mg/l, ozone concentration is 75-95mg/l.
This device water inlet cod is 55-95mg/l, average out to 74mg/l；Entering colority of water is 97-139, average out to 124.Through this
After invention device is processed, water outlet cod is 28-52mg/l, average out to 45mg/l；Effluent color dilution is 39-48, and average out to 43 can
Qualified discharge.
Claims (4)
1. a kind of multistage catalytic ozonation processing meanss of organic wastewater with difficult degradation thereby are it is characterised in that include multistage ozone catalytic
Oxidative system, every grade of catalytic ozonation system by ozone gas distribution system (3) and is located at obligate above ozone gas distribution system
Solid catalyst system (4) is constituted, and every grade of catalytic ozonation system is arranged in device from bottom to top；Wherein every grade ozone cloth
Gas system (3) is all connected with ozonator (16) by pipeline, every grade of described ozone gas distribution system (3) and ozonator
(16) be provided with regulating valve (14) and effusion meter (15) between, multistage ozone gas distribution system (3) from bottom to top ozone dosage by
Level is successively decreased；Described device top is provided with ozone tail gas outlet (13), and described ozone tail gas outlet passes through pipeline and tail
Gas destructor (17) connects；
Multistage obligate solid catalyst system (4) loads multiple different obligate solid catalysts respectively, and is propped up by catalyst respectively
Support member (5) support, is wherein located at the effective catalyst from larger molecular organicses of effectively degrading for the catalyst of bottom of device, position
Catalyst in the middle part of the device has the obligate catalyst of notable removal effect from certain pollutant in for waste water, positioned at device
The catalyst on top is from the effective catalyst to small organic molecule and ozone with strong absorption property, obligate catalyst type
Depending on can be according to organic components in waste water；The upper and lower of the obligate solid catalyst system (4) of level is respectively equipped with catalysis
Agent loads mouth (6), catalyst discharge port (7)；
The lower section being located at described multistage ozone gas distribution system (3) in described device is provided with water inlet pipe (1), evacuated tube and backwash and enters
Water pipe shares (8), backwash air air inlet pipe (10), manhole (11)；Described multistage obligate solid catalyst is located on described device
The top of system (4) is provided with visor (12), outlet pipe (2) and backwash outlet pipe (9).
2. the multistage catalytic ozonation processing meanss of organic wastewater with difficult degradation thereby according to claim 1 are it is characterised in that institute
The multistage catalytic ozonation system stated be 3-5 level catalytic ozonation system, specifically can be according to actual water quality situation depending on.
3. the multistage catalytic ozonation processing meanss of organic wastewater with difficult degradation thereby according to claim 2 are it is characterised in that institute
The multistage catalytic ozonation system stated is 3 grades of catalytic ozonation systems, loads three kinds not in 3 grades of catalytic ozonation systems
With obligate solid catalyst, from top to bottom, overlying catalyst is to carry swage activated-carbon catalyst, and middle level catalyst is born for kieselguhr
Carry nano iron oxide catalyst, lower catalyst agent is activated alumina Quito item catalyst.
4. the multistage catalytic ozonation processing meanss of organic wastewater with difficult degradation thereby according to claim 3 are it is characterised in that institute
Bottom ozone gas distribution system, middle part ozone gas distribution system, the ozone of top ozone gas distribution system in the 3 grades of ozone gas distribution systems stated
Dosage is 1～2:1:1/3～1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610891209.0A CN106348422A (en) | 2016-10-13 | 2016-10-13 | Multistage catalytic ozonation treating device for degradation-resistant organic wastewater |
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|---|---|---|---|
| CN201610891209.0A CN106348422A (en) | 2016-10-13 | 2016-10-13 | Multistage catalytic ozonation treating device for degradation-resistant organic wastewater |
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ID=57866619
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| CN201610891209.0A Pending CN106348422A (en) | 2016-10-13 | 2016-10-13 | Multistage catalytic ozonation treating device for degradation-resistant organic wastewater |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630110A (en) * | 2017-03-01 | 2017-05-10 | 南京大学 | Integrated fluidized bed device for gradient ozone catalyzing and application of integrated fluidized bed device |
| CN107720935A (en) * | 2017-11-22 | 2018-02-23 | 上海悦境环保科技有限公司 | A kind of out-phase catalytic ozonation system |
| CN108906073A (en) * | 2018-07-18 | 2018-11-30 | 南京大学盐城环保技术与工程研究院 | A kind of catalyst, decoloration device and its discoloration method for industrial wastewater decoloration |
| CN109110906A (en) * | 2018-09-11 | 2019-01-01 | 河北科技大学 | A kind of multistage device for catalyzing and oxidating ozone and its wastewater treatment method |
| CN111732183A (en) * | 2020-08-10 | 2020-10-02 | 中国石油化工股份有限公司 | Device and method for treating sewage by catalytic oxidation of ozone |
| 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 |
| CN112978899A (en) * | 2021-04-22 | 2021-06-18 | 江苏中圣高科技产业有限公司 | Novel ozone catalytic oxidation tower for wastewater treatment |
| CN114262095A (en) * | 2022-01-04 | 2022-04-01 | 维尔利环保科技集团股份有限公司 | Catalytic ozone oxidation method and system for treating membrane filtration concentrate by using waste in reaction process |
| CN116495864A (en) * | 2023-04-23 | 2023-07-28 | 中国轻工业广州工程有限公司 | Oil removal method for raffinate of ternary lithium battery material |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630110A (en) * | 2017-03-01 | 2017-05-10 | 南京大学 | Integrated fluidized bed device for gradient ozone catalyzing and application of integrated fluidized bed device |
| CN107720935A (en) * | 2017-11-22 | 2018-02-23 | 上海悦境环保科技有限公司 | A kind of out-phase catalytic ozonation system |
| CN108906073A (en) * | 2018-07-18 | 2018-11-30 | 南京大学盐城环保技术与工程研究院 | A kind of catalyst, decoloration device and its discoloration method for industrial wastewater decoloration |
| CN108906073B (en) * | 2018-07-18 | 2020-11-03 | 南京大学盐城环保技术与工程研究院 | Catalyst for industrial wastewater decolorization, decolorization device and decolorization method thereof |
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| CN111732183B (en) * | 2020-08-10 | 2022-06-14 | 中国石油化工股份有限公司 | Device and method for treating sewage by catalytic oxidation of ozone |
| CN111732183A (en) * | 2020-08-10 | 2020-10-02 | 中国石油化工股份有限公司 | Device and method for treating sewage by catalytic oxidation of ozone |
| 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 |
| CN112978899A (en) * | 2021-04-22 | 2021-06-18 | 江苏中圣高科技产业有限公司 | Novel ozone catalytic oxidation tower for wastewater treatment |
| CN114262095A (en) * | 2022-01-04 | 2022-04-01 | 维尔利环保科技集团股份有限公司 | Catalytic ozone oxidation method and system for treating membrane filtration concentrate by using waste in reaction process |
| CN114262095B (en) * | 2022-01-04 | 2023-04-18 | 维尔利环保科技集团股份有限公司 | Catalytic ozone oxidation method and system for treating membrane filtration concentrate by using waste in reaction process |
| CN116495864A (en) * | 2023-04-23 | 2023-07-28 | 中国轻工业广州工程有限公司 | Oil removal method for raffinate of ternary lithium battery material |
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Application publication date: 20170125 |