CN107601645A - A kind of catalyst oxidation reactor and its purification method for purifying waste water - Google Patents
A kind of catalyst oxidation reactor and its purification method for purifying waste water Download PDFInfo
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- CN107601645A CN107601645A CN201711096677.XA CN201711096677A CN107601645A CN 107601645 A CN107601645 A CN 107601645A CN 201711096677 A CN201711096677 A CN 201711096677A CN 107601645 A CN107601645 A CN 107601645A
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- waste water
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- gas
- catalyst oxidation
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- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 125
- 230000003647 oxidation Effects 0.000 title claims abstract description 123
- 239000002351 wastewater Substances 0.000 title claims abstract description 88
- 239000003054 catalyst Substances 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000000746 purification Methods 0.000 title claims abstract description 15
- 230000003197 catalytic effect Effects 0.000 claims abstract description 49
- 238000006243 chemical reaction Methods 0.000 claims abstract description 44
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000002994 raw material Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 56
- 238000009826 distribution Methods 0.000 claims description 23
- 238000000926 separation method Methods 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 17
- 238000006555 catalytic reaction Methods 0.000 claims description 14
- 230000003139 buffering effect Effects 0.000 claims description 11
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 5
- 238000005276 aerator Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 27
- 239000008213 purified water Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- -1 pharmacy Substances 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical group O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000010812 mixed waste Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002699 waste material 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
- C02F1/725—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
- C02F1/72—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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The present invention provides a kind of catalyst oxidation reactor and its purification method for purifying waste water, and whole catalyst oxidation reactor is three layers of telescopic tower structure；Catalyst oxidation reactor ecto-entad, it is divided into the difference in functionality areas such as Exhaust Emission Control area, waste water preheating zone and catalytic oxidation area.Raw material waste water enters catalyst oxidation reactor by the bottom inlet of catalyst oxidation reactor, ozone enters catalyst oxidation reactor by the top ozone inlet of catalyst oxidation reactor, raw material waste water and ozone mix, after reaction in catalyst oxidation reactor by multiple, handle qualified purified water and catalyst oxidation reactor is flowed out by treated water outlet, gas after the completion of reaction flows out catalyst oxidation reactor by exhaust port, and COD removal efficiency can reach more than 80%.Purification of the catalyst oxidation reactor of the present invention especially suitable for wastewater containing methanol.
Description
Technical field
The present invention relates to a kind of catalyst oxidation reactor for purifying waste water, the purification especially suitable for wastewater containing methanol.
Background technology
Methanol is important chemical products and raw material, aboundresources, and one of following important energy source.But methanol is to micro-
Biology, aquatile and human body are toxic, and it is also widely present in basic organic synthesis, modeling as a kind of organic pollution
In the production waste water such as material, staple fibre, pharmacy, ion exchange resin, petrochemical industry, forestry chemical industry and sulfate pulp.
At present, the processing for methanol waste water mainly has physics, chemical treatment method and bioremediation.Wherein, change
Learning processing method has the characteristics that flow is simple, processing waste strength interval range is wide, treating capacity is big, processing time is short, makes it
It is widely applied in practical application in industry.Had using the available chemical oxidizing agent of chemical Treatment methanol waste water smelly
Oxygen, chlorine system oxidant etc..When handling methanol waste water with ozone, intermediate product is formaldehyde, and final product is CO2.Mass concentration is
For 5000mg/L methanol waste water after a step catalytic oxidation process, its removal efficiency can reach more than 80%.
But the efficiency of catalytic oxidation treatment waste water technology how is further lifted, just becomes catalytic oxidation technologies and extensively should
With one of bottleneck with waste water treatment field.It is highly concentrated for chemical method processing to meet growing waste water treatment demand
Waste water is spent, those skilled in the art can typically update the performance of catalyst for catalytic oxidation, while catalyst oxidation reactor
Design is more likely to integrated design, how by the logistics of optimization system and to flow distribution, make inside reactor difference
Suction exothermic process reach optimal energy utilization efficiency, while reaction system is more minimized, be integrated, and then improving complete
The energy efficiency of system, it is that catalysis oxidation administers the practical basic premise of waste water technology.
The content of the invention
Present invention aims at a kind of catalyst oxidation reactor for purifying waste water is provided, catalyst oxidation reactor can solve
Following problem：First, normal temperature, without any outer heat supply in the case of can start and the normal operation of automatic maintenance reaction device；2nd, may be used
According to requiring, suitable for the wastewater treatment of various concentrations；3rd, heat exchange is integrated with reacting, mixing and separating etc. multiple functions
In one, the compactness of whole catalyst oxidation reactor is improved, realizes the miniaturization of reactor.
To achieve these goals, the technical solution adopted by the present invention is：A kind of catalyst oxidation reactor for purifying waste water
For three layers of telescopic tower structure；Catalyst oxidation reactor ecto-entad, set gradually Exhaust Emission Control area, waste water preheating
Area and catalytic oxidation area；Catalyst for catalytic oxidation is filled with catalytic oxidation area；The catalytic oxidation area
Include pre-reaction zone, gas-liquid buffering area, main reaction region and rear reaction zone successively from top to bottom, liquid is provided with the top of pre-reaction zone
Body distributor, gas-liquid buffering area is provided with above main reaction region, gas-liquid redistributor is provided with above gas-liquid buffering area, is being catalyzed
Oxidation reactor bottom part down is provided with gas-liquid separation zone, treated water outlet is provided with the lower section of gas-liquid separation zone, in catalysis oxidation
The top of reactor is provided with ozone inlet, and waterwater entrance is provided with the lower section of catalyst oxidation reactor side, anti-in catalysis oxidation
The top of device side is answered to be provided with exhaust port.
The method that above-mentioned purification waste water is claimed in another object of the present invention, is comprised the following steps that：Raw material waste water is by urging
Oxidation device bottom waterwater entrance enters waste water preheating zone, is preheated to 60-90 DEG C through waste water preheating zone, raw material gives up after preheating
Water enters catalytic oxidation area by liquid distribution trough；The smelly of corresponding proportion is passed through from ozone inlet to catalyst oxidation reactor
Oxygen, ozone enter catalytic oxidation area by ozone distributor, and ozone is with raw material waste water by mixing three times, after catalytic reaction
Raw material waste water is reached purification water quality standard, discharged by treated water outlet, reaction end gas is arranged by gas-liquid separation zone into tail gas
Put control zone and continue catalytic oxidation, reach the tail gas after standard and urged after foam barrier net by exhaust port discharge
Oxidation device.
Catalyst oxidation reactor of the present invention collect gas distribution, gas-liquid mixed, vapor-liquid backmixing, preheating, catalytic oxidation in
One, energy efficiency are high.Catalyst oxidation reactor is divided into Exhaust Emission Control area, waste water preheating zone and catalytic oxidation area etc.
Difference in functionality area.Ozone content is up to standard in the tail gas of Exhaust Emission Control area guarantee discharge；Waste water preheating zone can absorb catalysis
The reaction heat generated in oxidation reaction zone, while effectively control catalytic oxidation area's temperature, by waste water preheating zone
Raw material waste water is preheating to 60-90 DEG C；Fluid uses convective flow side in waste water preheating zone raw material waste water and catalytic oxidation area
Formula, it can significantly provide heat exchange efficiency between the two.Whole catalytic oxidation area can be divided into pre-reaction zone, main reaction region
And reaction zone, using three-stage catalytic oxidation, every section of reaction zone is all filled with catalyst for catalytic oxidation.Oxygen is catalyzed starting
When changing reactor, a small amount of raw material and ozone by being repeatedly mixed and fed into different reaction zones, realize whole reactor normal temperature,
Without the startup in the case of any outer heat supply.
The intake method of ozone of the present invention uses multistage feeding, ensure that ozone is dense on catalytic oxidation area axial direction
Degree distribution；Simultaneously at the import position of each section of ozone, using unidirectional gas explosion device, it ensure that ozone in catalytic oxidation area
Concentration distribution radially.By the adjustment of ozone distributor and entrance total amount, the waste water of various concentrations can be handled.
The present invention is anti-using the counter-current flow between catalyst oxidation reactor internal flows, waste water preheating zone and catalysis oxidation
The heat exchange between area is answered to integrate, the design of internal gas-liquid separation zone and gas-liquid distributor, energy between convection body heat exchange and reaction
Supply and exchange carry out rationally control and manage, improve the compactness of whole catalyst oxidation reactor, realize the small of reactor
Type, greatly improve system-wide energy efficiency.
Brief description of the drawings
Fig. 1 is the structural representation for the catalyst oxidation reactor for purifying waste water；
Fig. 2 is the partial enlarged drawing at Figure 1B；
Fig. 3 is the internal process schematic diagram for the catalyst oxidation reactor for purifying waste water；
Fig. 4 is the experimental result of the catalyst oxidation reactor of present invention purification waste water.
Wherein, 1, ozone inlet, 2, waterwater entrance, 3, exhaust port, 4, treated water outlet, 5, catalyst observation port,
6th, gas-liquid disturbance device, 7, raw material waste water distribution openings A, 8, raw material waste water distribution openings B, 9, be unidirectionally aerated valve, 10, block liquid screen cloth,
11st, reactor fixed mount, 12, foam barrier net, 13, ozone distributor, 14, liquid distribution trough, 15, unidirectional aerator, 16,
Gas-liquid redistributor, 17, catalyst oxidation reactor bottom, a, catalytic oxidation area, b, waste water preheating zone, c, exhaust emissions control
Area processed, d, pre-reaction zone, e, main reaction region, f, rear reaction zone, g, gas-liquid separation zone, h, gas-liquid buffering area.
Embodiment
The present invention is described in detail in 1-4 and specific embodiment below in conjunction with the accompanying drawings, but does not limit the scope of the invention.
As shown in figure 1, a kind of catalyst oxidation reactor for purifying waste water, catalyst oxidation reactor is three layers of telescopic tower
Formula structure；Catalyst oxidation reactor ecto-entad, it is anti-to set gradually Exhaust Emission Control area c, waste water preheating zone b and catalysis oxidation
Answer area a；
The catalytic oxidation area a includes pre-reaction zone d, main reaction region e and rear reaction zone f successively from top to bottom,
Pre-reaction zone d top is provided with liquid distribution trough 14, gas-liquid buffering area h is provided with above the e of main reaction region, in gas-liquid buffering area h
Top is provided with gas-liquid redistributor 16；Ozone inlet 1 is provided with the top of catalyst oxidation reactor, ozone distributor 13 is vertically set
Inside catalytic oxidation area a, positioned at the lower section of ozone inlet 1；Unidirectional aerator is additionally provided with ozone distributor 13
15.The gas vent direction of unidirectional aerator 15 and raw material waste water are to contact, ensure that being sufficiently mixed for gas-liquid.
Gas-liquid separation zone g is provided with below catalyst oxidation reactor bottom 17, g lower section is provided with purification in gas-liquid separation zone
Water out 4；In gas-liquid separation zone, g top is provided with and blocks liquid screen cloth 10, and in Exhaust Emission Control area, c lower section is provided with unidirectional aeration
Valve 9.Be provided with inside waterwater entrance 2 raw material waste water distribution openings A7 and raw material waste water distribution openings B 8, raw material waste water distribution openings A7 with
The c connections of Exhaust Emission Control area, raw material waste water distribution openings B 8 are connected with waste water preheating zone b.Two strands of raw material waste water will also be in tail gas
Emission control area c is mixed and by liquid distribution trough 14 even into catalytic oxidation area a.Inside Exhaust Emission Control area c
Equipped with catalyst for catalytic oxidation, and gas-liquid disturbance device 6 is provided with, ensures that gas-liquid is sufficiently mixed；Described Exhaust Emission Control area c
Catalyst observation port 5 is inside also set, can periodically carry out catalyst sampling analysis.It is provided with the lower section of catalyst oxidation reactor side
Bottom waterwater entrance 2, exhaust port 3 is provided with the top of catalyst oxidation reactor side.COD in waste water is arranged according to user
The different requirements of concentration are put, can be achieved by the flow for adjusting ozone at ozone inlet 1.
The catalyst oxidation reactor of the present invention is used to purify the specific method of waste water：
(1) raw material waste water enters waste water preheating zone b from the bottom waterwater entrance 2 of catalyst oxidation reactor.Work as purification of waste water
After process stabilization, in the b of waste water preheating zone, raw material waste water can absorb waste water and ozone oxidation in catalytic oxidation area a
The reaction heat of generation, it is while effectively control catalytic oxidation area's a temperature, the raw material waste water in the b of waste water preheating zone is pre-
Heat arrives 60-90 DEG C.Fluid uses convective flow mode in waste water preheating zone b raw materials waste water and catalytic oxidation area a, can be significantly
Degree provides heat exchange efficiency between the two.
(2) waste water through waste water preheating zone b preheatings enters catalytic oxidation area a by liquid distribution trough 14.
(3) after raw material waste water enters catalytic oxidation area a, pre-reaction zone d, main reaction region e and rear anti-are first successively infiltrated
Area f is answered, then enters gas-liquid separation zone g through catalyst oxidation reactor bottom 17, liquid flows out catalysis oxidation by treated water outlet 4
Reactor.
(4) raw material waste water is passed through after catalytic oxidation area a has been infiltrated from the ozone inlet 1 of catalyst oxidation reactor
The ozone of corresponding proportion, ozone is by ozone distributor 13, catalytic oxidation area a each specified area corresponding to the entrance of subregion
Domain.
(5) ozone first by unidirectional gas explosion device 15 even into catalytic oxidation area a, on pre-reaction zone d tops
Counter current contacting is carried out with raw material waste water, pre-reaction zone d is entered after being sufficiently mixed, the catalysis oxygen of first time is carried out in catalyst surface
Change reaction.
(6) waste water and second segment ozone carry out counter current contacting after first time catalytic oxidation, after being sufficiently mixed, by gas
After the mixing of liquid redistributor Final 16's ozone and waste water, into gas-liquid buffering area h.
(7) enter through gas-liquid buffering area h, well-mixed waste water and ozone even into main reaction region e in catalyst surface
The secondary catalytic oxidation of row.
(8) waste water after second of catalytic oxidation and the 3rd section of ozone carry out counter current contacting, are sufficiently mixed laggard
Enter reaction zone f after catalysis oxidation, it is anti-that the material of wastewater fraction unreacted processing in rear reaction zone f completes third time catalysis oxidation
Should, after reaching purification water quality standard, catalyst oxidation reactor is flowed out by treated water outlet 4 after the g of gas-liquid separation zone.
(9) reaction end gas after catalytic oxidation three times, after the g gas-liquid separations of gas-liquid separation zone, set through upper strata
Meter blocks liquid screen cloth 10, enters Exhaust Emission Control area c by being unidirectionally aerated valve 9.In Exhaust Emission Control area c, tail is reacted
The effluent part that gas continues and entered by raw material waste water distribution openings A7 carries out catalytic oxidation, and tail gas passes through after reaching discharge standard
Cross foam barrier net 12 and catalyst oxidation reactor is flowed out by exhaust port 3.
The experimental result of the catalyst oxidation reactor of the purification waste water of the present invention is shown in Fig. 3, is mounted with according to Fig. 1 structure designs
One catalyst oxidation reactor, 1 cubic metre of catalyst is loaded, when hydraulic load is 2-3m3/m2During h, from COD clearances with
Time graph is visible, and the catalyst oxidation reactor is notable to COD removal effect, can reach within 20 hours stable from startup optimization
Operation, now catalytic eliminating efficiency is more than 80%.The catalyst oxidation reactor of the present invention is especially suitable for wastewater containing methanol
Purification.
It is described above, the only preferable embodiment of the invention, but the protection domain of the invention is not
This is confined to, any one skilled in the art is in the technical scope that the invention discloses, according to the present invention
The technical scheme of creation and its inventive concept are subject to equivalent substitution or change, should all cover the invention protection domain it
It is interior.
Claims (8)
1. a kind of catalyst oxidation reactor for purifying waste water, it is characterised in that catalyst oxidation reactor is three layers of telescopic tower
Formula structure；Catalyst oxidation reactor ecto-entad, set gradually Exhaust Emission Control area (c), waste water preheating zone (b) and catalysis oxygen
Change reaction zone (a)；Be filled with catalyst for catalytic oxidation in the catalytic oxidation area (a), the catalytic oxidation area (a) from
Top to bottm includes pre-reaction zone (d), gas-liquid buffering area (h), main reaction region (e) and rear reaction zone (f) successively, in pre-reaction zone
(d) top is provided with liquid distribution trough (14), gas-liquid buffering area (h) is provided with above main reaction region (e), in gas-liquid buffering area
(h) top is provided with gas-liquid redistributor (16), and gas-liquid separation zone (g) is provided with below catalyst oxidation reactor bottom (17),
The lower section of gas-liquid separation zone (g) is provided with treated water outlet (4), and ozone inlet (1) is provided with the top of catalyst oxidation reactor,
The lower section of catalyst oxidation reactor side is provided with waterwater entrance (2), is arranged in the top of catalyst oxidation reactor side provided with tail gas
Put mouth (3).
2. catalyst oxidation reactor according to claim 1, it is characterised in that ozone distributor (13) is vertically located at catalysis
Oxidation reaction zone (a) is internal, positioned at the lower section of ozone inlet (1)；Unidirectional aerator is additionally provided with ozone distributor (13)
(15)。
3. catalyst oxidation reactor according to claim 1, it is characterised in that be provided with the top of gas-liquid separation zone (g)
Liquid screen cloth (10) is blocked, unidirectional aeration valve (9) is provided with the lower section in Exhaust Emission Control area (c).
4. catalyst oxidation reactor according to claim 1, it is characterised in that be provided with raw material inside waterwater entrance (2)
Waste water distribution openings A (7) and raw material waste water distribution openings B (8), raw material waste water distribution openings A (7) are connected with Exhaust Emission Control area (c),
Raw material waste water distribution openings B (8) is connected with waste water preheating zone (b).
5. catalyst oxidation reactor according to claim 1, it is characterised in that filled inside Exhaust Emission Control area (c)
There is catalyst for catalytic oxidation, be additionally provided with gas-liquid disturbance device (6) and catalyst observation port (5).
6. one kind carries out purification method for effluent using any catalyst oxidation reactors of claim 1-5, it is characterised in that raw material
Waste water enters waste water preheating zone (b) by catalyst oxidation reactor bottom waterwater entrance (2), and 60- is preheated to through waste water preheating zone (b)
90 DEG C, raw material waste water enters catalytic oxidation area (a) by liquid distribution trough (14) after preheating；From ozone inlet (1) to urging
Oxidation device is passed through the ozone of corresponding proportion, and ozone enters catalytic oxidation area (a) by ozone distributor (13), smelly
Oxygen is with raw material waste water by mixing three times, raw material waste water is reached purification water quality standard after catalytic reaction, by treated water outlet (4)
Discharge, reaction end gas continue catalytic oxidation into Exhaust Emission Control area (c) by gas-liquid separation zone (g), reached
Catalyst oxidation reactor is discharged after standard.
7. according to the method for claim 6, it is characterised in that reaction end gas after the gas-liquid separation of gas-liquid separation zone (g),
By blocking liquid screen cloth (10), enter Exhaust Emission Control area (c) by being unidirectionally aerated valve (9), by raw material waste water distribution openings A (7)
The part material waste water of entrance continues catalytic oxidation with reaction end gas, is arranged after reaching standard by exhaust port (3)
Go out catalyst oxidation reactor.
8. according to the method for claim 6, it is characterised in that the volume of catalyst for catalytic oxidation and the volume ratio of reactor
For (1:3)~(1:5).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711358019.3A CN108059232B (en) | 2017-11-09 | 2017-11-09 | Method for purifying waste water |
| CN201711096677.XA CN107601645B (en) | 2017-11-09 | 2017-11-09 | A kind of catalyst oxidation reactor and its purification method purifying waste water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711096677.XA CN107601645B (en) | 2017-11-09 | 2017-11-09 | A kind of catalyst oxidation reactor and its purification method purifying waste water |
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| CN201711358019.3A Division CN108059232B (en) | 2017-11-09 | 2017-11-09 | Method for purifying waste water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108751380A (en) * | 2018-06-19 | 2018-11-06 | 怀化学院 | A kind of processing method of phase chromatography-use methanol waste water |
| CN114229988A (en) * | 2021-12-28 | 2022-03-25 | 大连大学 | Catalytic oxidation reactor suitable for purifying printing and dyeing wastewater |
| US11597659B2 (en) * | 2020-03-31 | 2023-03-07 | Nanjing University | Device for treating high-concentration organic wastewater by catalytic hydrothermal gasification |
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Also Published As
| Publication number | Publication date |
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| CN108059232A (en) | 2018-05-22 |
| CN108059232B (en) | 2020-05-19 |
| CN107601645B (en) | 2019-10-25 |
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