CN206352097U - A kind of processing unit of high salinity organic wastewater with difficult degradation thereby - Google Patents
A kind of processing unit of high salinity organic wastewater with difficult degradation thereby Download PDFInfo
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- CN206352097U CN206352097U CN201621486104.9U CN201621486104U CN206352097U CN 206352097 U CN206352097 U CN 206352097U CN 201621486104 U CN201621486104 U CN 201621486104U CN 206352097 U CN206352097 U CN 206352097U
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Abstract
The utility model is related to a kind of processing unit of high salinity organic wastewater with difficult degradation thereby.The device includes gas-liquid heat exchanger, liquid liquid heat exchanger, booster pump（Or circulating pump）, compression fan, WAO oxidation reactors, evaporator and vapour compression machine；Gas-liquid heat exchanger, evaporator, liquid liquid heat exchanger, WAO oxidation reactors are sequentially connected, vapour compression machine is set between gas-liquid heat exchanger and evaporator, booster pump is set between WAO oxidation reactors and liquid liquid heat exchanger, and the compression fan or oxidant chemicals dosing plant of injection oxidation air are provided in WAO oxidation reactor feed pipes.The utility model can gather the thermal source that the indirect steam of the advantage of Wet Oxidation Process and MVR technologies, oxidation hardly degraded organic substance, raising wastewater biodegradability, and the heat energy and evaporator for having recycled the generation of WAO oxidation reactions needs as system operation.
Description
Technical field
The utility model belongs to field of waste water treatment, the processing dress of more particularly to a kind of high salinity organic wastewater with difficult degradation thereby
Put.
Background technology
High salinity, high concentration hard-degraded organic waste water are a classes by industries such as printing and dyeing, percolate, papermaking fine chemistry industries
The production waste water of generation.COD contents in waste water are up to 10000 ~ 50000 mg/L, wherein containing benzene, toluene, benzoic acid, benzene
The hardly degraded organic substance such as phenol and other benzene homologues；Salinity in waste water is up to 10% ~ 15%.This wastewater biodegradability is poor, it is difficult to
Removed by biochemical treatment；By membrane technology, TDS qualified discharge can not be realized.If directly discharged not only serious
Environment is polluted, and causes the serious waste of resource.
At present, high salinity is handled both at home and abroad, the technology of high concentration hard-degraded organic waste water has：Chemical oxidation, H2O2Oxidation,
Fenton reagents, catalysis oxidation, wet oxidation, charcoal absorption, A O, A A the method such as O, SBR degraded COD；Multiple-effect evaporation,
Salinity in the methods such as MVR, film process removing waste water.
UASB, A O, A AO, SBR etc. be the mainstream technology for handling highly concentrated COD both at home and abroad at present.
H2O2Oxidation, Fenton reagent oxidations, wet oxidation etc. are to handle difficult degradation COD and raising B/C both at home and abroad at present
Mainstream technology.
Multiple-effect evaporation, MVR technologies, membrane technology are that processing high salt divides the mainstream technology of industrial wastewater both at home and abroad at present.
The combination of multiple traditional handicrafts, technique stream are mainly used currently for high salinity, high concentration hard-degraded organic waste water
Long, the involved processing equipment investment of journey is high, operating cost is high.
Utility model content
The purpose of this utility model be to provide a kind of energy conservation, organic matter degradation is efficient, can realize desalination,
Couple the device of the high salinity organic wastewater with difficult degradation thereby of the processing of wet oxidation and evaporation concentration technique.
The technical solution of the utility model is：
A kind of processing unit of high salinity organic wastewater with difficult degradation thereby, including gas-liquid heat exchanger, liquid liquid heat exchanger, supercharging
Pump（Or circulating pump）, compression fan, WAO oxidation reactors（Or wet oxidation reactor）, evaporator and vapour compression machine,
Gas-liquid heat exchanger, evaporator, liquid liquid heat exchanger, WAO oxidation reactors are sequentially connected, in addition to are arranged at vapor liquid heat exchange
Vapour compression machine between device and evaporator, sets booster pump between WAO oxidation reactors and liquid liquid heat exchanger, and in WAO
Oxidation reactor feed pipe is provided for injecting the compression fan or/and oxidant chemicals dosing plant of oxidation air.
Further, described oxidant chemicals dosing plant includes pipe-line mixer, is easy to oxidant and pending waste water
Mixing.
Further, liquid liquid heat exchanger is also joined directly together with WAO oxidation reactors by pipeline.
Further, gas-liquid heat exchanger is also joined directly together with liquid liquid heat exchanger by pipeline.
Further, evaporator sets venturi-type eductors, and for spraying mixed liquor, venturi-type eductors use venturi
Formula nozzle.
Further, two-stage demister is set at the top of evaporator, baffle plate type, ridge type demister or other shapes can be used
Formula.
Further, in addition to gas-liquid separator, described gas-liquid separator is connected with gas liquid exchanger.
Further, in addition to double piston push centrifuge, the bottom of described double piston push centrifuge and evaporator is connected.
Above-mentioned device is used for the method for handling high salinity organic wastewater with difficult degradation thereby, comprises the following steps：
（1）Pending waste water（Raw water or stoste）After gas-liquid heat exchanger, two grades of preheatings of liquid liquid heat exchanger, then pass through
Booster pump is pressurized；
（2）Raw water after preheated supercharging is injected oxidation air by compression fan or added by oxidant throwing device
Occurs oxidation reaction in WAO oxidation reactors after oxidant；
（3）Mixed liquor after oxidation reaction preheats raw water through liquid-liquid heat exchanger（Mixeding liquid temperature is higher, is exchanged heat by liquid liquid
Device, can transfer heat to raw water or stoste is preheated to it）, evaporator is then sprayed into, is flashed in evaporator；
（4）Step（3）Mother liquor after gained concentration separates out salt crystallization, and the raffinate obtained after dehydration is mixed into down with stoste
One circulation.
Further, the indirect steam that evaporator is produced is after centrifuging vapour compression machine supercharging, heating, as gas-liquid heat exchange
To raw water in device（Or stoste）Mixed liquor after the thermal source preheated, oxidation reaction is transferred heat to after liquid-liquid heat exchanger,
Continue the thermal source preheated as raw water, so as to form circulation, improve the thermal efficiency, reduce energy consumption.
Further, step（2）In, the pressure of WAO oxidation reactors is 0.5 ~ 5 MPa, and temperature is 130 ~ 200 DEG C.
Further, step（3）In, spray into evaporator by venturi-type eductors after mixed liquor cooling.
Further, step（3）In, the pressure inside evaporator is 60 ~ 100 KPa, and temperature is 70 ~ 100 DEG C.
Further, step（4）In, the dehydration equipment after crystallization is double piston push centrifuge.
The beneficial effects of the utility model are：
The utility model is rational in infrastructure, and operation and maintenance cost are relatively low, and can be significantly improved while energy consumption is reduced
Operating efficiency, the device is used for the processing of high salinity organic wastewater with difficult degradation thereby, can combine wet raw noodles and MVR
The characteristics of technology, utilize WAO（Catalytic wet oxidation）Realize the high catalytic degradation efficiency 60% ~ 90% of organic matter and improve BOD/
COD is from 0.15 to 0.4；Evaporated through MVR, the COD contents in distilled water are only 10% ~ 20% of COD in raw water, with having in raw water
The composition of machine thing is relevant with content, and distillation again can qualified discharge through conventional sewage treatment process；COD oxidation heat liberations maintain WAO
There is provided the heat needed for evaporation while autoxidation reaction temperature, the indirect steam that evaporation is produced is used to preheat raw water, system
The heat that inside is produced can maintain system normally to run, it is not necessary to introduce raw steam and other thermals source.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model device, in figure, 1, gas-liquid heat exchanger, 2, liquid liquid heat exchanger, 3,
Booster pump, 4, compression fan, 5, oxidant chemicals dosing plant, 6, WAO catalyst oxidation reactors, 7, venturi-type eductors, 8, evaporation
Device, 9, vapour compression machine, 10, gas-liquid separator, 11, double piston push centrifuge.
Embodiment
The utility model is described in further details with specific embodiment below in conjunction with the accompanying drawings, but the utility model is not
It is limited to this.
The processing unit of high salinity organic wastewater with difficult degradation thereby of the present utility model, including gas-liquid heat exchanger 1, liquid liquid heat are handed over
Parallel operation 2, booster pump（Or circulating pump）3rd, compression fan 4, WAO oxidation reactors（Or wet oxidation reactor）6th, evaporator
8 and vapour compression machine 9, gas-liquid heat exchanger 1, evaporator 8, liquid liquid heat exchanger 2, WAO oxidation reactors 6 are sequentially connected, also
Including the vapour compression machine 9 being arranged between gas-liquid heat exchanger 1 and evaporator 8, WAO oxidation reactors 6 and liquid liquid heat exchange
Between device 2 set booster pump 3, and WAO oxidation reactors 6 feed pipe be provided for inject oxidation air compression fan 4
With oxidant chemicals dosing plant 5；Liquid liquid heat exchanger 2 and WAO oxidation reactors 6 are also joined directly together by pipeline simultaneously, gas-liquid heat
Exchanger 1 is also joined directly together by pipeline simultaneously with liquid liquid heat exchanger 2, and evaporator 8 sets venturi-type eductors 7, for spraying
Mixed liquor is penetrated, venturi-type eductors 7 use venturi type nozzle；The bottom of evaporator 8 sets two-stage demister, can use deflection plate
Formula or ridge type demister；Also include gas-liquid separator 10, gas-liquid separator 10 is connected with gas liquid exchanger 1, in addition to steaming
Send out the double piston push centrifuge 11 of the bottom connection of device 8.
Embodiment 1
Certain saccharin sodium produces waste water --- entered using the iron displacement liquid of the opposed recopper sour water of pilot plant of the present utility model
Row pretreatment.
The displacement copper sour water first reclaims copper simple substance, regulation pH to 8.5 ~ 9, precipitation, the COD 14200 of supernatant through iron displacement
~15680 mg/L、COD 2690~ 3120 mg/L、NaCl~8%、Na2SO4~3%。
The subsequent treatment of supernatant, comprises the following steps：
（1）After supernatant after copper sour water iron displacement liquid, precipitation is preheated through gas-liquid heat exchanger 1, liquid liquid heat exchanger 2,
By booster pump 3 and compression fan 4 be pressurized after catalytic oxidation occurs in WAO oxidation reactors 6, WAO oxidation reactors
The MPa of pressure 3.2 ~ 4.1,181.2 ~ 186.3 DEG C of temperature；
（2）Mixed liquor after oxidation reaction passes through the text of venturi-type eductors 7 after the heat exchange cooling of liquid liquid heat exchanger 2
Nozzle sprays into evaporator 8 in mound, is flashed in evaporator 8, the KPa of pressure 61.6 ~ 98 inside evaporator 8, temperature
78.2~99.6℃；
（3）Mother liquor after concentration separates out carnallite crystallization（NaCl、Na2SO4）, it is dehydrated through double piston push centrifuge 11, raffinate backflow
To evaporator 8；
（4）After the indirect steam that evaporator 8 is produced is pressurized, heated up through centrifugation vapour compression machine 9, in gas-liquid heat exchanger 1
In to iron displacement supernatant preheating, form condensed water.
The index of gained condensed water is：PH 6.5 ~ 7.5, the mg/L of COD 834 ~ 1120 mg/L, BOD 258 ~ 414.
Each item data of contrast before and after the processing, using device of the present utility model, coordinates corresponding processing method, Neng Goushi
Now to the good processing of high salinity organic wastewater with difficult degradation thereby.
Claims (6)
1. a kind of processing unit of high salinity organic wastewater with difficult degradation thereby, it is characterised in that：Handed over including gas-liquid heat exchanger, liquid liquid heat
Parallel operation, booster pump, compression fan, WAO oxidation reactors, evaporator and vapour compression machine；Gas-liquid heat exchanger, evaporator, liquid
Liquid heat exchanger, WAO oxidation reactors are sequentially connected, and vapour compression machine, WAO oxygen are set between gas-liquid heat exchanger and evaporator
Change and booster pump is set between reactor and liquid liquid heat exchanger, and injection oxidation is provided in WAO oxidation reactor feed pipes
The compression fan or/and oxidant chemicals dosing plant of air.
2. device according to claim 1, it is characterised in that described oxidant chemicals dosing plant includes pipe-line mixer.
3. device according to claim 1, it is characterised in that liquid liquid heat exchanger also passes through pipe with WAO oxidation reactors
Road is joined directly together；Gas-liquid heat exchanger is also joined directly together with liquid liquid heat exchanger by pipeline.
4. device according to claim 1, it is characterised in that evaporator sets venturi-type eductors, for spraying mixing
Liquid, venturi-type eductors use venturi type nozzle；Two-stage demister is set at the top of evaporator, using baffle plate type or ridge type
Demister.
5. device according to claim 1, it is characterised in that also including gas-liquid separator, described gas-liquid separator with
Gas liquid exchanger is connected.
6. device according to claim 1, it is characterised in that also including double piston push centrifuge, described double push-material centrifugation
The bottom connection of machine and evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621486104.9U CN206352097U (en) | 2016-12-31 | 2016-12-31 | A kind of processing unit of high salinity organic wastewater with difficult degradation thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621486104.9U CN206352097U (en) | 2016-12-31 | 2016-12-31 | A kind of processing unit of high salinity organic wastewater with difficult degradation thereby |
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| CN206352097U true CN206352097U (en) | 2017-07-25 |
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| CN201621486104.9U Active CN206352097U (en) | 2016-12-31 | 2016-12-31 | A kind of processing unit of high salinity organic wastewater with difficult degradation thereby |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107758964A (en) * | 2017-11-16 | 2018-03-06 | 凯姆德（北京）能源环境科技有限公司 | A kind of system and its processing method for spent lye processing |
-
2016
- 2016-12-31 CN CN201621486104.9U patent/CN206352097U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107758964A (en) * | 2017-11-16 | 2018-03-06 | 凯姆德（北京）能源环境科技有限公司 | A kind of system and its processing method for spent lye processing |
| CN107758964B (en) * | 2017-11-16 | 2024-04-26 | 凯姆德（北京）能源环境科技有限公司 | System for treating waste alkali liquid and treatment method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High salt concentration difficult degradation organic waste water's processing apparatus Effective date of registration: 20180410 Granted publication date: 20170725 Pledgee: Bank of Changsha Limited by Share Ltd science and Technology Branch Pledgor: HUNAN PING'AN ENVIRONMENT PROTECTION CO., LTD. Registration number: 2018430000024 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190419 Granted publication date: 20170725 Pledgee: Bank of Changsha Limited by Share Ltd science and Technology Branch Pledgor: HUNAN PING'AN ENVIRONMENT PROTECTION CO., LTD. Registration number: 2018430000024 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High salt concentration difficult degradation organic waste water's processing apparatus Effective date of registration: 20190428 Granted publication date: 20170725 Pledgee: Bank of Changsha Limited by Share Ltd science and Technology Branch Pledgor: HUNAN PING'AN ENVIRONMENT PROTECTION CO., LTD. Registration number: 2019430000035 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200511 Granted publication date: 20170725 Pledgee: Bank of Changsha Limited by Share Ltd science and Technology Branch Pledgor: HUNAN PINGAN ENVIRONMENTAL PROTECTION Co.,Ltd. Registration number: 2019430000035 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High salt concentration difficult degradation organic waste water's processing apparatus Effective date of registration: 20200512 Granted publication date: 20170725 Pledgee: Bank of Changsha Limited by Share Ltd science and Technology Branch Pledgor: HUNAN PINGAN ENVIRONMENTAL PROTECTION Co.,Ltd. Registration number: Y2020980002132 |