CN104478065B - Expanded bed catalytic ozonation reactor and its sewage water treatment method - Google Patents
Expanded bed catalytic ozonation reactor and its sewage water treatment method Download PDFInfo
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- CN104478065B CN104478065B CN201410775079.5A CN201410775079A CN104478065B CN 104478065 B CN104478065 B CN 104478065B CN 201410775079 A CN201410775079 A CN 201410775079A CN 104478065 B CN104478065 B CN 104478065B
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- 239000010865 sewage Substances 0.000 title claims abstract description 110
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 45
- 238000006385 ozonation reaction Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 11
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 61
- 230000008676 import Effects 0.000 claims abstract description 12
- 239000008346 aqueous phase Substances 0.000 claims abstract description 7
- 239000012071 phase Substances 0.000 claims abstract description 7
- 230000008961 swelling Effects 0.000 claims abstract description 7
- 239000003054 catalyst Substances 0.000 claims description 34
- 230000003647 oxidation Effects 0.000 claims description 16
- 238000007254 oxidation reaction Methods 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 claims description 2
- 238000006555 catalytic reaction Methods 0.000 claims description 2
- 239000008188 pellet Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000003319 supportive effect Effects 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 47
- 238000012360 testing method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000005465 channeling Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 206010015535 Euphoric mood Diseases 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a kind of expanded bed catalytic ozonation reactor, inside reactor is disposed with ozone distributor, inlet distribution device and beds from bottom up, reactor top is provided with offgas duct and sewage outlet pipe, offgas duct is provided with tail gas return duct, sewage outlet pipe is provided with sewage backflow pipe, and tail gas return duct and sewage backflow pipe are respectively communicated to gas phase import and the aqueous phase import of water sprayer；It is provided with Hui Liushui gas distributor, water sprayer outlet is by pipeline connection to Hui Liushui gas distributor between beds and inlet distribution device.In running, under the hydraulic action of water inlet and backflow sewage, beds are in swelling state to reactor.The invention discloses a kind of sewage water treatment method of this expanded bed catalytic ozonation reactor of application, it is possible to increase sewage disposal depth, increase substantially ozone utilization rate, disclosure satisfy that tail gas qualified discharge requirement, environmental protection, economize on resources.
Description
Technical field
The invention belongs to technical field of sewage, it is related to sewage disposal catalytic ozonation equipment, specially a kind of swollen
Swollen bed catalytic ozonation reactor and its sewage water treatment method.
Background technology
Ozone, as a kind of strong oxidizer, is widely used in terms of wastewater treatment.For improving ozone utilization rate
And sewage treating efficiency, at present the mode of commonly used catalytic ozonation carry out sewage disposal.Catalytic ozonation becomes
Work(is applied to the aspects such as advanced treatment of wastewater, reusing sewage, high concentration hardly possible biochemical sewage pretreatment, at ozone utilization rate and sewage
The reason more independent ozone oxidation of efficiency improves a lot.But the research of catalytic ozonation at present is concentrated mainly on catalyst research and development
Aspect, have developed different carriers and the catalyst of load different activities component, and the catalyst range of application developed is different,
Treatment effect is each variant.At present each research institution by Research Emphasis be placed on exploitation effective catalyst with improve ozone utilization rate and
In sewage treating efficiency, and rarer by research, design and develop high efficiency reactor and improve ozone utilization rate and sewage disposal
Efficiency.Study at present and the reactor of application is mainly two kinds of fixed bed catalytic oxidation reactors：One be sewage, ozone in the same direction
Flowing, passes through reactor catalyst bed from bottom to top by reactor bottom, and catalytic oxidation occurs；Another kind be sewage,
Ozone reverse flow, sewage from top to bottom, ozone from bottom to top pass through reactor catalyst bed, occur catalytic oxidation.
The subject matter that existing fixed bed catalytic ozonation reactor exists has：
(1) fixed bed catalytic reactor is after running a period of time, such as 6～7 days, beds space and catalyst table
Float that face can be brought in sewage or that reaction produces, colloid blocking or pollute, need periodically beds are carried out instead
Rinse；Increased reactor operation easier, improve automatic control requirement, and produce a certain amount of backwashing wastewater and need to locate further
Reason；
(2) fixed bed catalytic reactor, water-locator, gas pipe design be unreasonable or processing, the not high feelings of installation accuracy
Under condition, and it may occur that channeling in the case that operational management is not good at, have a strong impact on treatment effect；
(3) mainly by the way of perforated pipe or micro-pore aeration, ozone is passed through in sewage, due to ozone in sewage shape
The bubble becoming is larger, and dissolution rate is relatively low, thus leading to ozone utilization rate low, the ozone content in outer last person's gas is more；Reaction
In tail gas, undissolved and unreacted ozone is unrecovered afterwards, causes the waste of ozone；
(4) the dissolubility ozone having not enough time in sewage react is expelled directly out, if follow-up sewage disposal is connected to life
Thing processing unit, also needs sewage is carried out with the process such as ozone stripping, on the one hand increased treatment process, on the other hand cause smelly
The waste of oxygen；
(5) sewage time of staying in reactor is generally 0.5-1.0 hour, and in the middle part of sewage, difficult oxidation material has not enough time to
Oxidized just discharge, reaction depth not, leads to sewage treating efficiency not high.
Content of the invention
In view of this, present invention aims to above-mentioned the deficiencies in the prior art, a kind of expanded bed ozone is provided to urge
Oxidation device, can be used for advanced treatment of wastewater, reusing sewage, the field such as high concentration hardly possible biochemical sewage pretreatment, more traditional
Fixed bed catalytic oxidation reactor, greatly improves ozone utilization rate.
Technical scheme is as follows：
A kind of expanded bed catalytic ozonation reactor, inside reactor is disposed with ozone distribution from bottom up
Device, inlet distribution device and beds, reactor top be provided with offgas duct and sewage outlet pipe it is characterised in that：Offgas duct
It is provided with tail gas return duct, sewage outlet pipe is provided with sewage backflow pipe, tail gas return duct and sewage backflow pipe are respectively communicated to
The gas phase import of water sprayer and aqueous phase import；It is provided with Hui Liushui gas distributor, water-jet between beds and inlet distribution device
Device outlet is by pipeline connection to Hui Liushui gas distributor.
Further, reactor head is provided with exhaust collection cover, and exhaust collection cover top connects described offgas duct, tail
It is provided with tail gas control valve between trachea outlet and tail gas return duct；It is provided between sewage outlet pipe outlet and sewage backflow pipe
Sewage control valve, sewage backflow pipe is provided with recirculation water booster pump；Ozone distributor connects ozone air inlet pipe, and inlet distribution device is even
Logical water inlet pipe, water inlet pipe is provided with into water booster pump；It is disposed with catalyst bed course below beds and catalyst props up
Support grid, catalyst support grid is located above Hui Liushui gas distributor.
Further, reactor tail gas collecting hood and reactor shell convergence part are provided with a circle downflow weir, overflow
Weir connects described sewage outlet pipe.
Further, it is communicated with ozone decomposed device between offgas duct outlet and tail gas control valve.
Further, in reactor running, beds are under the hydraulic action of water inlet and backflow sewage
In swelling state, beds expansion rate is 10%-30%.
A kind of apply above-mentioned expanded bed catalytic ozonation reactor for treatment sewage sewage water treatment method it is characterised in that
Comprise the following steps：
(1) treatment sewage is evenly distributed in expanded bed catalytic ozonation by inlet distribution device after water inlet pipe
Reactor lower part, ozone is evenly distributed in reactor bottom by ozone distributor after ozone air inlet pipe, pending dirt
Water and ozone flow up through beds, and catalytic ozonation reaction occurs in beds；
(2) enter outlet pipe through the sewage overflow that step (1) was processed, a sewage part is discharged to through outlet pipe outlet
Outside, another part enters water sprayer aqueous phase entrance through sewage backflow pipe；The tail gas producing in step (1) course of reaction is through tail
Gas collecting hood enters offgas duct after collecting, a tail gas part is up to standard after processing through ozone decomposed device to be expelled to outside reactor, separately
A part of tail gas enters water sprayer gas phase entrance through tail gas return duct；
(3) sewage flowing back and tail gas are mixed to form air-water mixture in water sprayer, and are back to backflow by pipeline
Shui gas distributor, enters in reactor and participates in catalytic oxidation again.
Further, reactor tail gas reflux ratio is 200～400%；Sewage backflow is than for 200～400%.
Further, in reactor, the catalyst of filling is pellet type catalyst, particle diameter 2～8mm.
Further, the effective hydraulic detention time of reactor is 0.5～1.0 hour.
The invention has the beneficial effects as follows providing a kind of expanded bed catalytic ozonation reactor, at sewage deep
The fields such as reason, reusing sewage and high concentration hardly possible biochemical sewage pretreatment, its ozone profit of more traditional fixed bed catalytic oxidation reactor
Improve 30% about with rate；Avoid the problem that conventional fixed bed reactors need to periodically carry out backwash surely simultaneously, reduce anti-
Answer device operation easier and automatic control level, it is to avoid conventional fixed bed catalytic reactor channeling that may be present, improve biography
Mass-energy power and treatment effect.
Brief description
Fig. 1 is the structural representation of the outer circulation sewage disposal catalytic ozonation reactor that the present invention provides；
In figure：
1. ozone distributor；2. ozone air inlet pipe；3. sewage water inlet pipe；4. water inlet booster pump；5. inlet distribution device；6. time
Flowing water/gas distributor；7. catalyst support grid；8. catalyst bed course；9. beds；10. reactor outer wall；11. overflow
Stream weir；12. exhaust collection covers；13. offgas duct；14. tail gas control valves；15. ozone decomposed devices；16. offgas duct outlets；17.
Tail gas return duct；18. outlet pipes；19. sewage control valves；20. outlet pipe outlets；21. sewage backflow pipes；22. recirculation waters increase
Press pump；23. water sprayers.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
As shown in Figure 1, a kind of expanded bed catalytic ozonation reactor, reactor cross-section is generally circular in shape or square
Shape, is disposed with ozone distributor 1, inlet distribution device 5 and catalyst bed from its bottom up inside reactor outer wall 10
Layer 9, reactor top is provided with offgas duct 13 and sewage outlet pipe 18；Ozone distributor 1 connects ozone air inlet pipe 2, inlet distribution
Device 5 connects sewage water inlet pipe 3, and water inlet pipe 3 is provided with into water booster pump 4；It is provided with catalyst bed course 8 below beds 9,
It is provided with catalyst support grid 7 below catalyst bed course 8；Reactor 10 top is provided with exhaust collection cover 12, exhaust collection cover 12
The cylinder convergence part of reactor is provided with a circle downflow weir 11, it is upper that the overfall of downflow weir 11 is arranged on reactor outer wall 10
In beds 9 top and be located at the position of exhaust collection cover 12 lower section, downflow weir connects sewage outlet pipe 18.
Exhaust collection cover 12 top connects offgas duct 13, and offgas duct 13 and outlet pipe 18 all have outlet, in offgas duct
It is provided with as tail gas return duct 17, outlet pipe 18 is provided with sewage backflow pipe 21, and tail gas return duct 17 and 21 points of sewage backflow pipe
Be not communicated to gas phase import and the aqueous phase import of water sprayer 23, water sprayer 23 outlet by pipeline connection to recirculation water edema caused by disorder of QI cloth
Device 6, described Hui Liushui gas distributor 6 is arranged in reactor 10 and is located at catalyst support grid 7 lower section and in inlet distribution
Above device 5.Water sprayer is also referred to as ejector, can be by backflow sewage and tail gas Returning reactor bottom so that the tail gas of backflow can
, in the case of normal pressure or even negative pressure, to return to reactor with the sewage formation air-water mixture of backflow and to participate in catalysis oxidation again
Reaction.
Offgas duct between offgas duct outlet 16 and tail gas return duct 17 is provided with tail gas control valve 14, tail gas control valve
Ozone decomposed device 15 is connected between 14 with outlet 16；Pipeline between sewage backflow pipe 21 and outlet pipe outlet 20 is provided with
Sewage control valve 19, sewage backflow pipe 21 is provided with recirculation water booster pump 22.
, in running, beds are in influent stream sewage and backflow for expanded bed catalytic ozonation reactor of the present invention
It is in swelling state under the hydraulic action of sewage, beds expansion rate is 10%-30%, water needed for beds expansion rate
Power condition, determines according to the proportion of used catalyst, particle diameter etc..
The method and step carrying out sewage disposal using the expanded bed catalytic ozonation reactor that the present invention provides is as follows：
(1) treatment sewage enters water inlet pipe 3 after water inlet booster pump 4 supercharging, is uniformly distributed by inlet distribution device 5
In reactor 10 bottom, ozone is evenly distributed in reactor 10 bottom by ozone distributor 1 after ozone air inlet pipe 2,
Treatment sewage and ozone, to upstream, enter beds 9, catalytic ozonation reaction occurs in beds 9, goes
Except the pollutant in sewage；Using catalyst in catalytic ozonation course of reaction, catalyst be graininess, particle diameter be 2～
8mm；Now, beds are in swelling state under the hydraulic action of ascending current, and expansion rate is 10-30%.
(2) sewage processing through step (1) enters outlet pipe 18, the sewage one after process after downflow weir 11 collection
Part is discharged to the outside through outlet pipe outlet 20, and another part enters sewage backflow pipe 21, and sewage backflow is than by sewage control
Valve 19 processed and backflow boosting pump 22 control between 100～400%；Water-jet is entered after the backflow intensified pump of sewage 22 supercharging
The aqueous phase import of device 23；Produce in step (1) course of reaction enters tail gas containing ozone tail gas after exhaust collection cover 12 collection
Pipe 13, a part of tail gas is up to standard after ozone decomposed device 15 process to be expelled to outside, and another part tail gas is through tail gas return duct
17 entrance water sprayer 23 gas phase imports；Tail gas reflux ratio is controlled between 100～400% by tail gas control valve 14；
(3) sewage flowing back and tail gas are mixed to form air-water mixture in water sprayer 23, and are back to instead by pipeline
Answer the Hui Liushui gas distributor 6 in device 10, upper entrance beds 9, participate in catalytic oxidation again.
Catalyst in reactor enter sewage, ozone, backflow sewage and backflow ozone in the presence of, in expand shape
State, it is to avoid conventional fixed catalyst beds reactor need to periodically carry out the problem of backwash, reduce reactor operation easier and
Automatic control level；Expansion rate of proportion, particle diameter and beds according to catalyst etc. determines the rising of sewage in reactor
Linear speed, makes catalyst reach required swelling state.In the present invention, the expansion rate of beds is preferably 10%-30%.In addition,
By the backflow of sewage and tail gas, make full use of remaining ozone in the ozone dissolving in sewage and tail gas, improve ozone profit
With rate and sewage disposal depth.
Effective hydraulic detention time of present invention reactor when carrying out catalytic oxidation is 0.5～1.0 hour.
For determining the effect of the present invention, separately design and made expanded bed catalytic ozonation reaction provided by the present invention
Device and fixed bed catalytic ozonation reactor, and carried out contrast test.Two kinds of reactor for treatment scales are 0.2m3/h,
Effectively hydraulic detention time is 0.5 hour, all filling same particle size be 4mm about support type with activated alumina as carrier
Catalyst.Fixed bed catalytic ozonation reactor is sewage, ozone flow reactor in the same direction, no sewage, tail gas backflow.To having a competition
Test result to be described below：
Embodiment 1：
Certain wastewater reusing device reverse osmosis concentrated water COD is in 120mg/l, using this strand of sewage as test water, right
The results are shown in Table 1 than test.
Table 1 expanded bed catalytic ozonation reactor and fixed bed catalytic ozonation reactor comparative test result
Embodiment 2：
, in 80mg/l, using this sewage as test water, comparative test result is shown in Table 2 for certain chemical engineering sewage CODcr.
Table 2 expanded bed catalytic ozonation reactor and fixed bed catalytic ozonation reactor comparative test result
Can be seen that expanded bed catalytic ozonation reactor by table 1, table 2 comparative test result to urge compared with fixed bed ozone
Oxidation device, ozone utilization rate is improved by a relatively large margin, and improves sewage disposal depth.During testing, fixing
Bed catalyst oxidation reactor often runs 6 days, backwash 1 time, and expanded bed catalyst oxidation reactor did not carried out backwash.
Above the present invention is described in detail.Herein the principle of the present invention and embodiment are set forth,
Described above it is only intended to help understand the core concept of the present invention.It should be pointed out that the ordinary skill people for the art
Member for, under the premise without departing from the principles of the invention, the present invention can also be carried out some improve and modify, these improve and
Modify and also fall in the protection domain of the claims in the present invention.
Claims (2)
1. a kind of expanded bed catalytic ozonation reactor, inside reactor from bottom up be disposed with ozone distributor,
Inlet distribution device and beds, reactor top be provided with offgas duct and sewage outlet pipe it is characterised in that：Set in offgas duct
There is tail gas return duct, sewage outlet pipe is provided with sewage backflow pipe, tail gas return duct and sewage backflow pipe are respectively communicated to water-jet
The gas phase import of device and aqueous phase import；It is provided with Hui Liushui gas distributor, water sprayer goes out between beds and inlet distribution device
Mouth is by pipeline connection to Hui Liushui gas distributor；
Reactor head is provided with exhaust collection cover, and exhaust collection cover top connects described offgas duct, offgas duct outlet and tail
It is provided with tail gas control valve between gas return duct；It is provided with sewage control valve between sewage outlet pipe outlet and sewage backflow pipe, dirty
Water return duct is provided with recirculation water booster pump；Ozone distributor connects ozone air inlet pipe, and inlet distribution device connects water inlet pipe, water inlet
Pipe is provided with into water booster pump；It is disposed with catalyst bed course and catalyst support grid, catalyst below beds
Supportive grid is located above Hui Liushui gas distributor；
Reactor tail gas collecting hood and reactor shell convergence part are provided with a circle downflow weir, downflow weir connects described sewage and goes out
Water pipe；
It is communicated with ozone decomposed device between offgas duct outlet and tail gas control valve；
In reactor running, beds are in swelling state under the hydraulic action of water inlet and backflow sewage, catalysis
Agent bed expansion rate is 10%-30%.
2. the sewage water treatment method of the expanded bed catalytic ozonation reactor described in a kind of utilization claim 1, its feature exists
In comprising the following steps：
（1）Treatment sewage is evenly distributed in the reaction of expanded bed catalytic ozonation by inlet distribution device after water inlet pipe
Device bottom, ozone is evenly distributed in reactor bottom by ozone distributor after ozone air inlet pipe, treatment sewage and
Ozone flows up through beds, and catalytic ozonation reaction occurs in beds；
（2）Through step（1）The sewage overflow processing enters outlet pipe, and a sewage part is discharged to outer through outlet pipe outlet
Portion, another part enters water sprayer aqueous phase import through sewage backflow pipe；Step（1）The tail gas producing in course of reaction is through tail gas
Collecting hood enters offgas duct after collecting, a tail gas part is expelled to outside reactor after processing through ozone decomposed device, another part
Tail gas enters water sprayer gas phase import through tail gas return duct；
（3）Backflow sewage and tail gas be mixed to form air-water mixture in water sprayer, and by pipeline be back to recirculation water gas
Distributor, enters in reactor and participates in catalytic oxidation again；
Wherein, beds are in swelling state under the hydraulic action of ascending current, and expansion rate is 10-30%；
Reactor tail gas reflux ratio is 200～400%；Sewage backflow is than for 200～400%；
In reactor, the catalyst of filling is pellet type catalyst, particle diameter 2～8mm；
The effective hydraulic detention time of reactor is 0.5～1.0 hour.
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| CN106630106A (en) * | 2015-10-29 | 2017-05-10 | 宝山钢铁股份有限公司 | Method for removing total organic nitrogen in cold rolling thin oil electro adsorption concentrated water and apparatus thereof |
| CN105347462B (en) * | 2015-12-09 | 2018-08-24 | 北京高能时代环境技术股份有限公司 | A kind of fluidized bed type ozone oxidation tower |
| 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 |
| CN109574198A (en) * | 2018-12-29 | 2019-04-05 | 苏州清然环保科技有限公司 | Ozone catalytic fluidized bed sewage processor and its application method |
| CN110803758A (en) * | 2019-12-05 | 2020-02-18 | 上海环境工程设计研究院有限公司 | Catalytic ozonation reactor for wastewater treatment |
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| US5637231A (en) * | 1995-06-07 | 1997-06-10 | Huron Valley Technology, Inc. | Method and apparatus for using ozone in a pressure vessel to treat stream of pollutants |
| GB0026242D0 (en) * | 2000-10-26 | 2000-12-13 | Bp Chem Int Ltd | Apparatus and process |
| FR2861718B1 (en) * | 2003-10-30 | 2006-03-03 | Otv Sa | INSTALLATION AND METHOD FOR PURIFYING AQUEOUS EFFLUENT BY OXIDATION AND MEMBRANE FILTRATION |
| CN100443156C (en) * | 2006-11-24 | 2008-12-17 | 哈尔滨工业大学 | Three-phase circulating fluidized bed photochemical reactor with a plurality of light sources and Fe/inorganic carrier catalyst preparation and method for processing waste water thereby |
| CN101041503A (en) * | 2007-03-20 | 2007-09-26 | 哈尔滨工业大学 | Method for removing water ammonia nitrogen by ozone catalytic oxidation intensification |
| CN201427888Y (en) * | 2008-12-26 | 2010-03-24 | 九江学院 | Apparatus for treating organic wastewater by employing percussion flow to reinforce ozone |
| CN201347378Y (en) * | 2009-01-07 | 2009-11-18 | 南京师范大学 | Batch-type three-phase-fluidization ozone oxidation reactor |
| CN201634523U (en) * | 2009-09-25 | 2010-11-17 | 南京师范大学 | Continuous three-phase fluidization ozone oxidation reactor |
| CN102139935B (en) * | 2010-01-28 | 2014-07-23 | 中国科学院生态环境研究中心 | Ultraviolet-photochemical compound water purifying process and device capable of realizing synchronous cleaning |
| CN201694885U (en) * | 2010-08-20 | 2011-01-05 | 天津安邦科技有限公司 | Ozone catalytic oxidation and scrubbing device and water treatment system |
| CN101993144B (en) * | 2010-12-17 | 2013-01-23 | 江苏江大环境工程有限责任公司 | Catalytic oxidation fluid bed |
| CN102559392A (en) * | 2010-12-30 | 2012-07-11 | 通向成功私人有限公司 | Method for producing low-pour-point fatty acid methyl ester or ethyl ester by using any mixture of triacylglycerol and free fatty acid |
| CN203200067U (en) * | 2012-07-13 | 2013-09-18 | 天津大港油田科远石油工程有限责任公司 | Sewage treatment device for improving utilization ratio of ozone by catalytic oxidation |
| CN203284223U (en) * | 2013-05-21 | 2013-11-13 | 九江学院 | Jet type ozone photocatalysis-membrane treatment device for organic wastewater |
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