CN206143026U - Caprolactam waste water treatment's device - Google Patents
Caprolactam waste water treatment's device Download PDFInfo
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- CN206143026U CN206143026U CN201621160414.1U CN201621160414U CN206143026U CN 206143026 U CN206143026 U CN 206143026U CN 201621160414 U CN201621160414 U CN 201621160414U CN 206143026 U CN206143026 U CN 206143026U
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- caprolactam
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Abstract
The utility model discloses a caprolactam waste water treatment's device, including the oil interceptor that communicates in proper order, pH equalizing basin, indisputable carbon pond, fenton oxidation pond, just sink pond, combined governing pond, one -level air supporting pond, the pond of hydrolysising, AO biochemical system, two sink pond, second -stage air floatation pond, ozone ponds, blow and take off pond and MBR pond, the oil interceptor is the connected set oil bath still. The utility model discloses effectual to removal of pollutant, system's operation is stable, builds simultaneously all obviously to be less than treatment process of the same trade with the running cost.
Description
Technical field
This utility model belongs to field of waste water treatment, and in particular to the device that a kind of caprolactam wastewater is processed.
Background technology
Caprolactam is a kind of important Organic Chemicals, is mainly used to manufacture the fiber of polyamide -6, caprolactam work
Engineering plastics etc., the product of manufacture is widely used in the fields such as automobile, ship, medical article, electronics, article of everyday use.Caprolactam is given birth to
Producing need to be through the chemical process of series of complex, in oxime method production process, including the condensation reaction of Ketohexamethylene and oxyammonia sulfate
Ketohexamethylene is obtained, the latter occurs Beckmann rearrangement and obtains crude caprolactam under oleum catalytic condition, under high temperature,
Obtain caprolactam Jing after multiple tracks concentrating and purifying again.Need to consume a large amount of water in caprolactam production process, while each production
Link can give off the waste water of a large amount of different qualities again, wherein main sewage source include hydrogen peroxide refined wastewater, oximate device,
Reset waste water, pimelinketone device, hydrogen peroxide plant, desalted water acid-base waste fluid, device flushing water；Additionally, also including on-site
Sanitary sewage.Wherein hydrogen peroxide refined wastewater CODCrIn more than 15000mg/L, oximate device waste discharge CODCrIn 7000mg/
More than L, both waste water belong to high-concentration hardly-degradable waste water, with very strong bio-toxicity, conventional biological treatment side
Method cannot realize effective removal of pollutant.And the concentration of organic wastewater of other operation discharges is less than above two waste water, such as
The completely independent decentralized processing of fruit, can greatly increase the input cost of equipment；And direct mixed processing, can increase reagent cost simultaneously again
And the stability of impact processing system.
At present, domestic existing caprolactam wastewater is generally processed using biochemical process, but as discharge of wastewater water quality requirement is carried
Height, simple biochemistry mode is unable to reach emission request.Then the joint life of the preprocessing means such as Fenton oxidation, ozone oxidation is occurred in that
The processing mode of change method, obtains reasonable treatment effect, but the water yield for processing is relatively fewer, often for acyl in oneself
Amine produces the concentrated water part of waste water, and to on-site, other most of waste water do not provide clearly rational processing mode.Membrane processing method
It is also study hotspot in recent years, but the membrane pollution problem that simple film process mode is caused can't be solved well.State
Inside and outside to have also appeared the processing modes such as salting out method, wet oxidation process, high temperature incineration method, these modes more can be removed thoroughly
Pollutant, but still suffer from processing high energy consumption, the big problem of cost.
In sum, at this stage it is often the waste water of a certain section of high concentration to the object of wastewater of caprolactam production research
Process, or after biochemical treatment waste discharge advanced treating scheme, lack systematic process unit and method, Neng Gougao
Effect is stable, reach emission request at low cost.
Utility model content
The purpose of this utility model is to provide a kind of device for processing caprolactam wastewater, and the device can be by acyl in oneself
All waste water of amine plant emissions are all effectively processed, it is ensured that water outlet it is safe and reliable, and greatly reduce investment and
Operating cost.
To reach above-mentioned purpose, this utility model adopts following technical proposals：
The device that a kind of caprolactam wastewater is processed, including the oil interceptor, pH regulator pond, ferrum carbon pond, the Fenton that are sequentially communicated
Oxidation pond, preliminary sedimentation tank, comprehensive adjustment pond, one-level flotation tank, hydrolytic tank, A/O biochemical systems, second pond, secondary air-floatation pond, ozone
Pond, stripping pond and MBR ponds, the oil interceptor also connects oil sump.
As preferred technical scheme：
The device that a kind of caprolactam wastewater described in the utility model is processed, the ferrum carbon pond adopts ferrum material with carbon element for empty
Heart cylinder type.
The device that a kind of caprolactam wastewater described in the utility model is processed, is mounted with that esterification is fine inside the hydrolytic tank
Dimension filler, described filler diameter 80-150mm, long 1.5m.
The device that a kind of caprolactam wastewater described in the utility model is processed, the A/O biochemical systems include connecting successively
The anaerobic pond for connecing and Aerobic Pond, take the mode of internal reflux.
The device that a kind of caprolactam wastewater described in the utility model is processed, the MBR system adopts PVDF Flat Membrane,
The membrane aperture is less than 0.1 μm.
Compared with prior art, its advantage is mainly reflected in the following aspects to this utility model：
1st, this utility model high treating effect, plant running is stable, and effluent quality being capable of stably reaching standard.
2nd, this utility model greatly reduces project cost, and wherein project investment cost can reduce 50%, operating cost
30% can be reduced.
3rd, this utility model is truly realized the dual treatment of waste water, and each processing unit has given full play to respective advantage.
Description of the drawings
Fig. 1 is block diagram of the present utility model.
In figure：1-oil interceptor；2-oil sump；3-pH regulator pond；4-ferrum carbon pond；5-Fenton oxidation pond；6-just heavy
Pond；7-comprehensive adjustment pond；8-one-level flotation tank；9-hydrolytic tank；10-anaerobic pond；11-Aerobic Pond；12-second pond；
13-secondary air-floatation pond；14-ozone pond；15-stripping pond；16-MBR ponds.
Specific embodiment
With reference to the accompanying drawings and examples the utility model is described in further detail.
As shown in figure 1, the device that a kind of caprolactam wastewater of the present utility model is processed, including the oil interceptor being sequentially communicated
1st, pH regulator pond 3, ferrum carbon pond 4, Fenton oxidation pond 5, preliminary sedimentation tank 6, comprehensive adjustment pond 7, one-level flotation tank 8, the life of hydrolytic tank 9, A/O
Change system, second pond 12, secondary air-floatation pond 13, ozone pond 14, stripping pond 15 and MBR ponds 16, oil interceptor 1 also connects oil sump 2.
By the attainable method of device of the present utility model above, comprise the following steps：
1) oximate device waste water, hydrogen peroxide refined wastewater initially enter oil interceptor 1, and wherein oils is reclaimed by oil sump 2,
Waste water enters pH regulator pond 3, and then Jing ferrum carbon pond 4 pre-oxidizes, and enters back into Fenton oxidation pond 5 and further aoxidizes, and sinks at the beginning of water outlet Jing
The precipitation process of pond 6；
2) after the water after step 1 is processed and on-site other process section waste water, sanitary sewage and device flushing water mix
Into after the regulating water quality water yield of comprehensive adjustment pond 7, composite waste enters hydrolytic tank 9 Jing after the process of one-level flotation tank 8, and water outlet is entered again
Enter the process of A/O biochemical systems；
3) bio-chemical effluent in step 2 to be passed sequentially through and enter ozone pond 14 after second pond 12 and the process of secondary air-floatation pond 13,
Again Jing MBR ponds process discharge to waste water Jing after the process of stripping pond.
Embodiment one：
Referring to Fig. 1, hydrogen peroxide refined wastewater and oximate device waste discharge enter first oil interceptor 1, are gone using action of gravity
Except most of heavy oil, light oil etc.；Oils is reclaimed by oil sump 2, the water outlet of oil interceptor 1 enters to pH regulator pond 3, wastewater pH is adjusted
Save as 2-4, be conducive to follow-up pre-oxidation treatment；Water outlet flow to ferrum carbon pond 4, using iron salt and hydroxy compounds to polluting in waste water
Thing carries out preliminary decomposition；Water outlet flows into again Fenton oxidation pond 5, and one is entered to hard-degraded substance in waste water using Fenton oxidation system
Step oxidation, improves the biodegradability of waste water；Water outlet adds PAMC to carry out at conventional precipitation in preliminary sedimentation tank 6
Reason；The biodegradability of waste water is substantially increased Jing after above-mentioned pretreatment, B/C will be greater than 0.4, organic removal rate about 30%.
Oximate device, hydrogen peroxide refined wastewater flow into after pretreatment comprehensive adjustment pond 7, and remaining several strands of waste water includes resetting
Waste water, pimelinketone device waste discharge, hydrogen peroxide plant waste discharge, desalted water acid-base waste fluid, device rinse water and life are dirty
Water carries out water quality and quantity balanced in regulating reservoir also into comprehensive adjustment pond 7 using diving mixer；Water outlet is promoted to one-level air supporting
Pond 8, removes oil emulsion, float etc.；The water outlet of one-level flotation tank flows into hydrolytic tank 9, is mounted with to be esterified fiberfill in pond, is micro-
Biological enrichment provides condition, and hydrolytic tank is greatly improved giving birth to for waste water to hardly degraded organic substance in waste water by hydrolysis
The property changed；Hydrolysis water flows into A/O biochemical systems, and anaerobic pond 10 plays a part of degradation of organic substances and denitrogenation, and Aerobic Pond 11 is played
The further effect of degradation of organic substances and nitrification, the part effluent recycling Jing after anaerobic pond 10 is nitrified carries out denitrification to Aerobic Pond
Denitrogenation processing；Aerobic Pond water outlet flows into second pond 12 and carries out mud-water separation；The waste discharge ammonia nitrogen of second pond 12 is less than 10m/L, COD
Less than 150mg/L.
Through biochemical system process, waste water flows into secondary air-floatation pond 13 from second pond 12, removes the activity remained in waste water
Sludge, float, colloidal impurity etc., while most of colourity can be removed；The water outlet of secondary air-floatation pond 13 enters ozone pond 14, utilizes
Ozone strong oxidizing technique, the hard-degraded substance in thorough Decomposition Wastewater；Waste water flows into MBR ponds 16 Jing after the stripping of stripping pond 15, profit
Sludge biochemical action and the filtration of Flat Membrane with MBR ponds, further organics removal and float etc., final waste water row
Ammonia nitrogen is put less than 5m/L, COD is less than 40mg/L, concentration of suspension is less than 10mg/L.
Embodiment two：
200,000 tons of caprolactam wastewater discharge engineerings are produced in Shanxi per year, and wherein hydrogen peroxide refining plant and pimelinketone device is arranged
Waste water 550t/d is put, other devices waste discharge 3000t/d.Hydrogen peroxide refining plant and pimelinketone device waste discharge Jing oil removals
Pond process float can clearance reach 50%, oils clearance reach 90%, COD clearances reach 5%, Jing ferrum carbon with it is fragrant
Oxidation pre-treatment, waste water COD clearance reaches 50%, and removal efficiency reaches 50%, B/C more than 0.4.
After air supporting-hydrolysis acidification-A/O- second ponds process, COD clearances reach 95%, BOD to comprehensive wastewater5Remove
Rate is 98%, and ammonia nitrogen removal frank reaches 99%.
Waste water is through ozone oxidation after biochemical treatment, after the biological further advanced treating of MBR films, final waste discharge COD
For 30mg/L, BOD5For 15mg/L, ammonia nitrogen concentration is less than 5mg/L.
Embodiment three：
200,000 tons of caprolactam wastewater discharge engineerings are produced in Shandong per year, and wherein hydrogen peroxide refining plant and pimelinketone device is arranged
Waste water 550t/d is put, other devices waste discharge 3000t/d.Hydrogen peroxide refining plant and pimelinketone device waste discharge Jing oil removals
Pond process float can clearance reach 50%, oils clearance reach 90%, COD clearances reach 5%, Jing ferrum carbon with it is fragrant
Oxidation pre-treatment, waste water COD clearance reaches 50%, and removal efficiency reaches 50%, B/C more than 0.4.
After air supporting-hydrolysis acidification-A/O- second ponds process, COD clearances reach 95%, BOD to comprehensive wastewater5Remove
Rate is 98%, and ammonia nitrogen removal frank reaches 99%.
Waste water is through ozone oxidation after biochemical treatment, after the biological further advanced treating of MBR films, final waste discharge COD
For 30mg/L, BOD5For 15mg/L, ammonia nitrogen concentration is less than 5mg/L.
Example IV：
Shandong (eastern dimerization work) certain 200,000 tons of caprolactam wastewater discharge engineerings of annual output, wherein hydrogen peroxide refining plant and ring
Hexanone device waste discharge 550t/d, other devices waste discharge 3000t/d.Hydrogen peroxide refining plant and pimelinketone device are discharged
Waste water Jing oil interceptors process float can clearance reach 50%, oils clearance reaches 90%, COD clearances and reaches 5%,
Jing ferrum carbon and Fenton oxidation pretreatment, waste water COD clearance reaches 55%, and removal efficiency reaches 55%, B/C more than 0.4.
After air supporting-hydrolysis acidification-A/O- second ponds process, COD clearances reach 96%, BOD to comprehensive wastewater5Remove
Rate is 99%, and ammonia nitrogen removal frank reaches 99%.
Waste water is through ozone oxidation after biochemical treatment, after the biological further advanced treating of MBR films, final waste discharge COD
For 35mg/L, BOD5For 18mg/L, ammonia nitrogen concentration is 4mg/L.
Claims (5)
1. the device that a kind of caprolactam wastewater is processed, it is characterised in that including the oil interceptor, pH regulator pond, the ferrum that are sequentially communicated
Carbon pond, Fenton oxidation pond, preliminary sedimentation tank, comprehensive adjustment pond, one-level flotation tank, hydrolytic tank, A/O biochemical systems, second pond, two grades of gas
Floating pond, ozone pond, stripping pond and MBR ponds, the oil interceptor also connects oil sump.
2. the device that a kind of caprolactam wastewater according to claim 1 is processed, it is characterised in that the ferrum carbon pond adopts
Ferrum material with carbon element is hollow cylinder build.
3. the device that a kind of caprolactam wastewater according to claim 1 is processed, it is characterised in that inside the hydrolytic tank
It is mounted with to be esterified fiberfill, described filler diameter 80-150mm, long 1.5m.
4. the device that a kind of caprolactam wastewater according to claim 1 is processed, it is characterised in that the A/O department of biochemistry
System includes anaerobic pond and the Aerobic Pond being sequentially connected, and takes the mode of internal reflux.
5. the device that a kind of caprolactam wastewater according to claim 1 is processed, it is characterised in that the MBR system is adopted
PVDF Flat Membrane, the membrane aperture is used to be less than 0.1 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621160414.1U CN206143026U (en) | 2016-10-31 | 2016-10-31 | Caprolactam waste water treatment's device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621160414.1U CN206143026U (en) | 2016-10-31 | 2016-10-31 | Caprolactam waste water treatment's device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206143026U true CN206143026U (en) | 2017-05-03 |
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ID=58623666
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621160414.1U Expired - Fee Related CN206143026U (en) | 2016-10-31 | 2016-10-31 | Caprolactam waste water treatment's device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107721066A (en) * | 2017-09-30 | 2018-02-23 | 山西阳煤丰喜化工有限责任公司 | Adipic acid sewage disposal system |
| CN109534498A (en) * | 2018-12-29 | 2019-03-29 | 江苏索普（集团）有限公司 | A kind of biochemical treatment is organic to contain SO4 containing acid2-The processing method of waste water |
| CN112279457A (en) * | 2020-10-15 | 2021-01-29 | 泉州南京大学环保产业研究院 | Caprolactam comprehensive wastewater treatment device and treatment method thereof |
-
2016
- 2016-10-31 CN CN201621160414.1U patent/CN206143026U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107721066A (en) * | 2017-09-30 | 2018-02-23 | 山西阳煤丰喜化工有限责任公司 | Adipic acid sewage disposal system |
| CN109534498A (en) * | 2018-12-29 | 2019-03-29 | 江苏索普（集团）有限公司 | A kind of biochemical treatment is organic to contain SO4 containing acid2-The processing method of waste water |
| CN109534498B (en) * | 2018-12-29 | 2021-12-03 | 江苏索普化工股份有限公司 | Organic acid-containing SO4 for biochemical treatment2-Method for treating waste water |
| CN112279457A (en) * | 2020-10-15 | 2021-01-29 | 泉州南京大学环保产业研究院 | Caprolactam comprehensive wastewater treatment device and treatment method thereof |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 Termination date: 20201031 |