CN108455719A - High concentrated organic wastewater wet oxidation processing system and processing method - Google Patents
High concentrated organic wastewater wet oxidation processing system and processing method Download PDFInfo
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- CN108455719A CN108455719A CN201810217489.6A CN201810217489A CN108455719A CN 108455719 A CN108455719 A CN 108455719A CN 201810217489 A CN201810217489 A CN 201810217489A CN 108455719 A CN108455719 A CN 108455719A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 60
- 238000009279 wet oxidation reaction Methods 0.000 title claims abstract description 43
- 238000012545 processing Methods 0.000 title claims abstract description 27
- 238000003672 processing method Methods 0.000 title claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 70
- 239000007788 liquid Substances 0.000 claims abstract description 58
- 239000001301 oxygen Substances 0.000 claims abstract description 46
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 46
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000000926 separation method Methods 0.000 claims abstract description 14
- 239000003999 initiator Substances 0.000 claims description 31
- 239000007789 gas Substances 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910001339 C alloy Inorganic materials 0.000 claims description 4
- WAIPAZQMEIHHTJ-UHFFFAOYSA-N [Cr].[Co] Chemical compound [Cr].[Co] WAIPAZQMEIHHTJ-UHFFFAOYSA-N 0.000 claims description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical group OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 239000000498 cooling water Substances 0.000 description 15
- 238000004880 explosion Methods 0.000 description 13
- 238000013022 venting Methods 0.000 description 12
- 239000000523 sample Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 239000012028 Fenton's reagent Substances 0.000 description 1
- 238000009303 advanced oxidation process reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 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
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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)
- 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 high concentrated organic wastewater wet oxidation processing system and processing methods, high concentrated organic wastewater wet oxidation processing system includes being formed with the reacting tank body of reaction chamber, inlet port and outlet port are formed at the top of reacting tank body, and reaction chamber is communicated with oxygenerator；Further include heating device and gas-liquid separation device and automatic control device, wherein heating device constitutes the heating to reaction chamber because forming heat exchange with reacting tank body, and gas-liquid separation device includes the discharge nozzle being connected to discharge port, and the gas-liquid separator on discharge nozzle.High concentrated organic wastewater wet oxidation processing system of the present invention, by being continuously passed through oxygen or air participation wet oxidation reaction to the quantitative organic wastewater in reaction chamber, and the gas-liquid that reaction generates is detached by gas-liquid separator, until the organic wastewater in reaction chamber is fully completed wet oxidation reaction, and then improve the treatment effect of organic wastewater.
Description
Technical field
The present invention relates to water-treatment technology field, more particularly to a kind of high concentrated organic wastewater wet oxidation processing system.
The invention further relates to a kind of processing methods applied to the high concentrated organic wastewater wet oxidation processing system.
Background technology
In recent decades, with industrialized fast development, the environmental pollution getting worse of generation, especially water pollution are more
It is prominent.In China, water pollution is mainly derived from intractable industrial wastewater, high concentrated organic wastewater especially with high salt, and ingredient is multiple
Miscellaneous, high organic content, toxicity are big, coloration is deep, and biodegradability is poor, intermittent discharge, the industrial wastewater that belongs to refractory reason but must administer.
The method for handling high concentrated organic wastewater with high salt at present mainly has chemical oxidation, H2O2Oxidation, Fenton reagent oxidation, catalysis oxygen
Change, wet oxidation, activated carbon adsorption, A O, A A the methods of O, SBR.
One kind of wet oxidation advanced oxidation processes owned by France in liquid-phase system, will give up that is, using air or oxygen as oxidant
Larger molecular organics oxygenolysis reaches purification mesh at the small molecules inorganic matter such as small organic molecule, carbon dioxide and water in water
's.Currently, there are still some problems in practical applications for Wet Oxidation Process：1), being directed to high salt, high-concentration hardly-degradable at present has
Machine waste water wet oxidation processing technological flow is long, equipment investment is high, operating cost is high, and the organic wastewater that can be handled is suitable
COD is in 100,000 mg/L or less；2), organic wastewater easily causes to corrode to equipment in wet oxidation reaction, influences the use of equipment
Service life and safety.
Invention content
In view of this, the present invention is directed to propose a kind of high concentrated organic wastewater wet oxidation processing system, organic to improve
The treatment effect of waste water, and there is preferable using effect.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of high concentrated organic wastewater wet oxidation processing system, including：
Reacting tank body is formed with reaction chamber inside the reacting tank body, is respectively formed at the top of the reacting tank body
The inlet port and outlet port being connected to reaction chamber, and the reaction chamber is communicated with oxygenerator via oxygen channel, in described anti-
Top of the tank is answered to be equipped with the agitating shaft extended in the reaction chamber.
Heating device, the heating device is constituted because forming heat exchange with the reacting tank body adds the reaction chamber
Heat；
Gas-liquid separation device, the gas-liquid separation device include the discharge nozzle being connected to the discharge port, and are set to institute
State the gas-liquid separator to be detached to the gas-liquid for flowing through the discharge nozzle by the reaction chamber on discharge nozzle；
Initiator throwing device is connected via feeding tube with reaction chamber comprising is connected to the feeding tube
Plunger type metering pump on initiator storage tank, and feeding tube between the reacting tank body and the initiator storage tank
And preheater；
Automatic control device, with the relevant parameter to the heating device, oxygenerator and initiator throwing device into
Row storage and display.
Further, the reacting tank body is made of 276 material of Hastelloy C alloys.
Further, the oxygenerator includes the oxygen booster pump being connected to described oxygen channel one end, and respectively
The air compressor and gas bomb being connected to the oxygen booster pump.
Further, oxygen buffering is provided on the oxygen channel between the oxygen booster pump and the reacting tank body
Tank, in being communicated with the pressure transmitter being electrically connected with the air compressor on the oxygen surge tank.
Further, the heating device is electric furnace.
Compared with the existing technology, the present invention has the advantage that：
High concentrated organic wastewater wet oxidation processing system of the present invention, by the way that reaction chamber and charge door is arranged, into
And organic wastewater can be added into reaction chamber by charge door, and reaction chamber is connected to oxygenerator, and then can be to reaction chamber
It is inside passed through oxygen or air and carries out humidifying oxidation reaction under high temperature environment with organic wastewater, the organic matter in organic wastewater decomposes
For the small molecules inorganic matter such as small organic molecule, carbon dioxide and water, it is connected to discharge port by the way that discharge nozzle is arranged, and discharging
Gas-liquid separator is set on pipe, and then the high temperature gas-liquid generated in reaction process may make to be discharged via discharge nozzle, and passes through gas
Liquid/gas separator is by gas-liquid separation, to obtain the liquid after gas up to standard and removal COD.That is this high concentrated organic wastewater wet type oxygen
Change processing system, by being continuously passed through oxygen or air participation wet oxidation reaction to the quantitative organic wastewater in reaction chamber,
And detached the gas-liquid that reaction generates by gas-liquid separator, until the organic wastewater in reaction chamber is fully completed wet type oxygen
Change reaction, and then improve the treatment effect of organic wastewater, and whole system floor space is small, saves equipment investment cost.
Meanwhile by the way that initiator throwing device is arranged to add initiator into reaction chamber, it can further improve organic waste
The treatment effect of water, and agitating shaft is set, reaction chamber is stirred, the contact effect between each material can be improved, ensure reaction
More fully.Use automatic control device to the relevant parameter to heating device, oxygenerator and initiator throwing device
Stored and shown, can be convenient for related personnel analyze and inquire and, improve the automation of integral device.
The present invention also provides a kind of high concentrated organic wastewater wet oxidation processing methods, and this approach includes the following steps：
A), a certain amount of organic wastewater and/or catalyst are added in reaction chamber, and are persistently stirred by agitating shaft；
B), high pressure oxygen or air are passed into reaction chamber, and reacting tank body is heated, so that organic wastewater
Wet oxidation reaction is carried out, the high temperature gas-liquid mixture generated in reaction process is discharged by discharge nozzle, and cold via cooling device
But cooling is handled；
C), the gas-liquid mixture after cooling is passed through into gas-liquid separator and carries out gas-liquid separation, gas is by gas-liquid separation
The outlet pipe of device is discharged and is collected after being depressured via dropping equipment, and liquid is discharged via the outlet pipe of gas-liquid separator.
Further, the operating temperature of the reacting tank body is 200~300 DEG C, and operating pressure is 1~30MPa, when reaction
Between be 1~2h.
Further, opening plunger formula metering pump adds the initiator to reversed intracavitary, and the initiator is hydrogen peroxide
Solution or liquor natrii hypochloritis.
Further, the initiator is added to after being preheated via preheater in reaction chamber, the work temperature of the preheater
Degree is 10~40 DEG C.
Further, the rotating speed of the agitating shaft is 100~500r/min.
The method of high concentrated organic wastewater wet oxidation processing system of the present invention and high concentrated organic wastewater wet type
The advantageous effect of oxidization processing system compared with the prior art is identical, and details are not described herein.
Description of the drawings
The attached drawing for constituting the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of the high concentrated organic wastewater wet oxidation processing system described in the embodiment of the present invention one；
Fig. 2 is the high concentrated organic wastewater wet oxidation processing system concrete structure signal described in the embodiment of the present invention one
Figure；
Reference sign：
1- reaction units, 101- reacting tank bodies, 2- oxygen channels, 3- heating devices, 4- gas-liquid separation devices, 401- dischargings
Pipe, 402- gas-liquid separators, the first explosion venting devices of 5-, the cooling water inlets 6-, 7- cooling water outlets, 8- agitating shafts, 9- power dress
It sets, 10- oxygenerators, 11- oxygen booster pumps, 12- air compressors, 13- gas bombs, 14- first pipes, 15- second is managed
Road, 16- surge tanks, the second explosion venting devices of 17-, 18- pressure transmitters, 19- first pipe filters, 20- coolers, 21-
One cold water pipes, the second cold water pipes of 22-, 23- probe tubes, 24- samplers, 25- third explosion venting devices, the second filters of 26-,
27- feeding tubes, 28- initiator throwing devices, 29- initiator storage tanks, 30- plunger type metering pumps, 31- preheaters, 32- thirds
Piping filter, 33- automatic control devices, 34- charging hoppers.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Embodiment one
The present embodiment is related to a kind of high concentrated organic wastewater wet oxidation processing system, shown in Fig. 1 combinations Fig. 2, packet
The reaction unit 1 with reacting tank body 101 is included, reaction chamber is formed with inside the reacting tank body 101, in the reacting tank body
101 top is respectively formed with the inlet port and outlet port not shown in the figure being connected to reaction chamber, and the reaction chamber via
Oxygen channel 2 is communicated with oxygenerator 10, the retractable setting of charge door in the present embodiment, organic for being added into reaction chamber
Waste water, and discharge port then goes out for high temperature gas-liquid flow.The high concentrated organic wastewater wet oxidation processing system further includes heating device 3
With gas-liquid separation device 4, wherein heating device 3 constitutes because forming heat exchange with reacting tank body 101 and adds to the reaction chamber
Heat can be electric furnace, and gas-liquid separation device 4 includes then the discharge nozzle 401 being connected to discharge port above-mentioned, and be set to
Gas-liquid separator 402 on discharge nozzle 401 to be detached to the gas-liquid for flowing through the discharge nozzle 401 by the reaction chamber.
In above-mentioned structure, wherein reacting tank body 101 is generally cylindrical, and can be arranged first on reacting tank body 101
Explosion venting device 5 and pressure gauge P2, for the ease of quickly cooling down after the completion of reaction to reacting tank body 101, in the present embodiment
It is also respectively formed with cooling water inlet 6 and cooling water outlet 7 at 101 top of reacting tank body.In order to improve reaction effect, this implementation
It is equipped at 101 top of reacting tank body in example and extends to agitating shaft 8 in reaction chamber and with paddle, in power plant 9
It drives down, the agitating shaft 8 is constituted due to the rotation relative to the reacting tank body 101 to organic in the reaction chamber
The stirring of waste water, power plant 9 is electric rotating machine in the present embodiment.In addition, can also be formed inside agitating shaft 8 in the present embodiment
There is cooling duct not shown in the figure, which is connected to form cooling water circulation passage with cooler described below, from
And agitating shaft 8 can be formed and be cooled down.
As shown in Fig. 2, oxygenerator 10 includes the oxygen booster pump 11 being connected to 2 one end of oxygen channel in the present embodiment,
And the air compressor 12 and gas bomb 13 being connected to respectively with oxygen booster pump 11, on concrete structure, air compressor 12
It is connected to oxygen booster pump 11 by first pipe 14, and gas bomb 13 then connects via second pipe 15 and oxygen booster pump 11
It is logical, and solenoid valve V7 is provided in first pipe 14, straight-through V10 is provided on second pipe 15, to be respectively formed to the
The control of one pipeline 14 and second pipe 15, in order to the pressure in oxygen channel 2 into row buffering, in oxygen hose in the present embodiment
It is provided with surge tank 16 on road 2, and is provided with the second explosion venting device 17 on surge tank 16, when 16 pressure of surge tank reaches high limit
When, the second explosion venting device 17 carries out automatic-explosion, ensures the safety of equipment, while in the oxygen channel 2 close to surge tank 16
On be additionally provided with pressure transmitter 18, which is electrically connected with air compressor 12, by the pressure in oxygen channel 2
Force feedback is to air compressor 12.In addition, on oxygen channel 2 in the present embodiment between surge tank 16 and reacting tank body 101
It is also disposed with needle-valve V11, first pipe filter 19, oxygen pressure reducing valve V12, check valve V13, needle-valve V14, with further
Ensure the fairness and accuracy in oxygen preparation.Meanwhile the present embodiment is additionally provided with pressure gauge P1 on surge tank 16, with can
The pressure parameter of surge tank 16 is observed at any time, and air compressor 12 does not rerun after pressure gauge P1 reaches 1~30MPa, together
When oxygen pressure reducing valve V12 can be closed when pressure gauge P2 described above reaches 1~30MPa of setting value, to ensure to react
The pressure limit of chamber.
The high-temperature gas in reaction chamber impacts gas-liquid separator 402 in order to prevent, in retort in the present embodiment
It is in series with cooler 20 on discharge nozzle 401 between body 101 and gas-liquid separator 402, which can be in the prior art
The cooling water inlet of coil exchanger, the cooler 20 is connected with cold water source and realizes water inlet, the cooling water of cooler 20
Outlet is connected via the first cold water pipes 21 with the cooling duct water inlet of agitating shaft 8, and the cooling duct of agitating shaft 8 is discharged
Mouth is then connected via the second cold water pipes 22 with the cooling water inlet of probe tube described below, the cooling water outlet of probe tube
It is connected to cold water retracting device, in order to recycle.The first cold water pipes 21 and the second cold water pipes 22 exist in the present embodiment
When being connected with cooling duct, water jacket in the prior art can be used and be rotatablely connected with cold water channel, to prevent from influencing agitating shaft
Rotation.In addition, can also be arranged on the water inlet of the first cold water pipes 21 and cooler in the present embodiment ball valve V20 and
V22, to realize the control intake to the first cold water pipes 21 and cooler 20.
For the ease of being detected to the organic wastewater in reaction chamber, reaction chamber connects via probe tube 23 in the present embodiment
It is connected with sampler 24, and needle-valve V15 and needle-valve V16, while the sampling is respectively set in 24 feed end of sampler and discharge end
Device 24 have cooling water inlet and cooling water outlet, the cooling water inlet with via the second above-mentioned cold water pipes 22 and with it is cold
But channel is connected, and then can be cooled down to sampler 24.When needing sampling during system response, sampling is slowly opened
The needle-valve V15 of 24 input end of device is waited for 2~10 seconds, closes needle-valve V15, after reaction material liquid after cooling water cooling, opens sampling
The needle-valve V16 of device outlet end, makes sample flow out in sampling bottle not shown in the figure.
It, can be on the discharge nozzle 401 of 20 upstream of cooler, and under cooler 20 in the present embodiment in above-mentioned structure
Needle-valve V17, straight-through valve V19, straight-through valve V21 and needle-valve V23 are set gradually on the discharge nozzle 401 of trip, while also can be in cooler
Exhaust-valve V18 is set on the discharge nozzle 401 of 20 upstreams.
With the first above-mentioned explosion venting device 5 as the second explosion venting device 17, in the present embodiment on gas-liquid separator 402
It is also equipped with third explosion venting device 25, the first explosion venting device 5, the second explosion venting device 17 and third explosion venting device in the present embodiment
25 are all made of the prior art, and details are not described herein.For the ease of controlling the discharging of gas-liquid separator 402, the present embodiment
In needle-valve V26 and needle-valve V24 are respectively arranged in the outlet pipe of gas-liquid separator 402 and outlet pipe, while in gas-liquid
The second filter 26 and dropping equipment are also disposed on the outlet pipe of separator 402, which can be counterbalance valve
V25 can be filtered gas by the way that the second filter 26 is arranged, be further reduced the discharge of pollutant, and counterbalance valve is arranged
V25, the gas that gas-liquid separator 402 can be discharged are discharged after being down to normal pressure.
To improve the wet oxidation effect of organic wastewater, reaction chamber is communicated with initiation via feeding tube 27 in the present embodiment
Agent throwing device 28, the initiator throwing device 28 include the initiator storage tank 29 being connected to feeding tube 27, and set on anti-
Answer the plunger type metering pump 30 and preheater 31 on the feeding tube 27 between tank body 101 and initiator storage tank 29, the present embodiment
The frequency of middle plunger type metering pump 30 uses 50Hz.By the way that initiator throwing device 28 is arranged so as to according to need in the present embodiment
Initiator is added into reaction chamber, to improve reaction effect.Ball valve V3 is provided in the present embodiment on feeding tube 27, the
Three piping filters 32, exhaust-valve V4, check valve V5 and initiator feed valve V6, in order to be controlled to feeding tube 27
It makes and filters, by adding initiator in reaction chamber to which reaction effect can be improved in the present embodiment.In addition, for the ease of to
Initiator is supplemented in initiator storage tank 29, is provided at 29 top of initiator storage tank in the present embodiment and is controlled conducting via control valve
Whether charging hopper 34.
This high concentrated organic wastewater wet oxidation processing system further includes automatic control device 33, the automatic control device 33
Can be touch switch board, with the instant playback of the process datas such as temperature, rotating speed, pressure, the flow velocity of realizing whole system, note
Record, storage, inquiry, analysis and relevant parameter reach baseline or high limit alarm.On concrete structure, in surge tank in the present embodiment
It is provided with the pressure sensor PIC01 of the electrical connection of automatic control device 33 on 16, is provided with and automatically controls on preheater 31
The temperature sensor TIC01 that device 33 is electrically connected, thermocouple sensor can be used in temperature sensor TIC01, in plunger type meter
It is provided with the frequency sensor VIC01 being electrically connected with automatic control device 33 on amount pump 30, automatic control is provided in reaction chamber
Device 33 processed be electrically connected with pressure sensor PIC02, be provided on reacting tank body 101 and be electrically connected with automatic control device 33
Temperature sensor TIC02, the speed probe NIC01 being electrically connected with automatic control device 33 is provided on agitating shaft 8,
The temperature sensor TIC03 being electrically connected with automatic control device 33 is provided on gas-liquid separator 402, and in automatic control device
Setting carries out display setting to the parameter of each sensor on 33, is such as arranged when temperature sensor TIC01 is 10~40 DEG C and shows, presses
Display etc. when power table P1 and pressure gauge P2 reaches 1~30MPa, consequently facilitating related personnel detects.In addition, being moved in the present embodiment
Power apparatus 9, air compressor 12 and heating device 3 can be realized by automatic control device 33 and be automatically controlled, and artificial behaviour is reduced
The trouble of work.
In addition, reacting tank body 101 can be made of 276 material of Hastelloy C alloys in the present embodiment, to increase the resistance to of reacting tank body
Corrosive power and heat-resisting ability, certainly, in the present embodiment also can by each device in 101 downstream of reacting tank body and pipeline by
276 material of Hastelloy C alloys is made, such as cooler 20 and discharge nozzle 401 and gas-liquid separator 402.
Embodiment two
The present embodiment is related to a kind of high concentrated organic wastewater wet oxidation processing method, and this approach includes the following steps：
A), a certain amount of organic wastewater and/or catalyst are added to the reaction chamber of reacting tank body 101 via charge door
In, and persistently stirred by agitating shaft 8；
B), start air compressor 12, the air or oxygen in gas bomb 13 is through air compressor 12 and gas boosting
Pump 11 is prepared certain density pressure-air or oxygen, pressure-air or oxygen via the filtering of first pipe filter 19 and
It is entered in reaction chamber after oxygen pressure reducing valve V12 decompressions, and opens heating device 3 and reacting tank body 101 is heated, so that
Organic wastewater carries out wet oxidation reaction, and the high temperature gas-liquid mixture generated in reaction process is arranged by the discharge port of reacting tank body
Go out, and cools processing via cooler 20；
C), the gas-liquid mixture after cooling is passed through into gas-liquid separator 402 and carries out gas-liquid separation, gas is by gas-liquid point
Outlet pipe from device 20 is discharged and is collected after being depressured via dropping equipment, and liquid is discharged via the outlet pipe of gas-liquid separator
And it focuses on.
In above-mentioned steps, wherein the operating temperature of reacting tank body 101 is 200~300 DEG C, and when 101 temperature of reacting tank body
When degree reaches requirement, touch switch board 33 controls heating device 3 and stops heating, and operating pressure is 1~30MPa, reaction time
Rotating speed for 1~2h, agitating shaft 8 is 100~500r/min.In order to improve reaction effect, in the present embodiment during the reaction
Can opening plunger formula metering pump add initiator to reversed intracavitary, the initiator can be used concentration 30% hydrogen peroxide solution or
The liquor natrii hypochloritis of concentration 10%, dosage are 10~100mL/L, i.e. 10~100mL initiations are added in every liter of organic wastewater
Agent, and initiator, via being added in reaction chamber after the preheating of preheater 31, the operating temperature of preheater 31 is 10~40 DEG C.Anti-
If needing sample detection during answering, it can slowly open needle-valve V15 and 2-10s is waited for be then shut off needle-valve V15, so that sample is cold
But needle-valve V16 is opened afterwards, so that sample flows out in sampling bottle.
Utilize the high concentrated organic wastewater wet oxidation processing system of embodiment 1 and two kinds of medicine of method pair of embodiment 2
Intermediate Wastewater wet oxidation is handled；Effect such as the following table 1：
After the completion of reaction, by adjusting automatic control device 33 so that temperature sensor TIC02 displays temperatures are 0
DEG C, and cooling water is passed through into reaction chamber to be dropped to reacting tank body 101 by the cooling water inlet on reacting tank body 101
Temperature opens counterbalance valve V25 discharge pressures when the temperature of reacting tank body 101 reaches requirement, empties the reacting tank body after pressure
101, which can add organic wastewater again, continues to run with.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of high concentrated organic wastewater wet oxidation processing system, it is characterised in that including：
Reacting tank body is formed with reaction chamber inside the reacting tank body, be respectively formed at the top of the reacting tank body with instead
The inlet port and outlet port for answering chamber to be connected to, and the reaction chamber is communicated with oxygenerator via oxygen channel, in the retort
The agitating shaft extended in the reaction chamber is equipped at the top of body；
Heating device, the heating device constitute the heating to the reaction chamber because forming heat exchange with the reacting tank body；
Gas-liquid separation device, the gas-liquid separation device include the discharge nozzle being connected to the discharge port, and set on it is described go out
Gas-liquid separator in expects pipe to be detached to the gas-liquid for flowing through the discharge nozzle by the reaction chamber；
Initiator throwing device is connected via feeding tube with reaction chamber comprising the initiation being connected to the feeding tube
Plunger type metering pump on agent storage tank, and feeding tube between the reacting tank body and the initiator storage tank and pre-
Hot device；
Automatic control device is deposited with the relevant parameter to the heating device, oxygenerator and initiator throwing device
Storage and display.
2. high concentrated organic wastewater wet oxidation processing method according to claim 1, it is characterised in that：The retort
Body is made of 276 material of Hastelloy C alloys.
3. high concentrated organic wastewater wet oxidation processing system according to claim 1, it is characterised in that：The oxygen dress processed
The oxygen booster pump including being connected to described oxygen channel one end is set, and the air pressure being connected to respectively with the oxygen booster pump
Contracting machine and gas bomb.
4. high concentrated organic wastewater wet oxidation processing system according to claim 3, it is characterised in that：In the oxygen
It is provided with oxygen surge tank on oxygen channel between booster pump and the reacting tank body, is communicated on the oxygen surge tank
The pressure transmitter being electrically connected with the air compressor.
5. high concentrated organic wastewater wet oxidation processing system according to claim 1, it is characterised in that：The heating dress
It is set to electric furnace.
6. a kind of high concentrated organic wastewater wet oxidation processing method, it is characterised in that using such as any one of claim 1 to 5
The high concentrated organic wastewater wet oxidation processing system, this approach includes the following steps：
A), a certain amount of organic wastewater and/or catalyst are added in reaction chamber, and are persistently stirred by agitating shaft；
B), high pressure oxygen or air are passed into reaction chamber, and reacting tank body is heated, so that organic wastewater carries out
Wet oxidation reaction, the high temperature gas-liquid mixture generated in reaction process are discharged by discharge nozzle, and are cooled down and dropped via cooling device
Temperature processing；
C), the gas-liquid mixture after cooling is passed through into gas-liquid separator and carries out gas-liquid separation, gas is by gas-liquid separator
Outlet pipe is discharged and is collected after being depressured via dropping equipment, and liquid is discharged via the outlet pipe of gas-liquid separator.
7. high concentrated organic wastewater wet oxidation processing method according to claim 6, it is characterised in that：The retort
The operating temperature of body is 200~300 DEG C, and operating pressure is 1~30MPa, and the reaction time is 1~2h.
8. high concentrated organic wastewater wet oxidation processing method according to claim 6, it is characterised in that：Opening plunger formula
Metering pump adds the initiator to reversed intracavitary, and the initiator is hydrogen peroxide solution or liquor natrii hypochloritis.
9. high concentrated organic wastewater wet oxidation processing method according to claim 7, it is characterised in that：The initiator
It is added in reaction chamber after being preheated via preheater, the operating temperature of the preheater is 10~40 DEG C.
10. high concentrated organic wastewater wet oxidation processing method according to claim 6, it is characterised in that：The stirring
The rotating speed of axis is 100~500r/min.
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| US11565956B2 (en) * | 2018-11-09 | 2023-01-31 | Jiangsu Institute Of Environmental Science | Multifunctional continuous hydrothermal oxidation experiment system and use method therefor |
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