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CN105502732A - Advanced treatment technology for caprolactam wastewater and device - Google Patents

Advanced treatment technology for caprolactam wastewater and device Download PDF

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Publication number
CN105502732A
CN105502732A CN201510868816.0A CN201510868816A CN105502732A CN 105502732 A CN105502732 A CN 105502732A CN 201510868816 A CN201510868816 A CN 201510868816A CN 105502732 A CN105502732 A CN 105502732A
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Prior art keywords
wastewater
caprolactam
advanced treatment
treatment process
caprolactam wastewater
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CN201510868816.0A
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Chinese (zh)
Inventor
李宁
王海峰
郑勇
章明
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SHANGHAI MINO ENVIRONMENT TECHNOLOGY Co
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SHANGHAI MINO ENVIRONMENT TECHNOLOGY Co
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Priority to CN201510868816.0A priority Critical patent/CN105502732A/en
Publication of CN105502732A publication Critical patent/CN105502732A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/722Oxidation by peroxides
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/725Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/36Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/06Controlling or monitoring parameters in water treatment pH
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/08Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention provides an advanced treatment technology for caprolactam wastewater. The advanced treatment technology for the caprolactam wastewater comprises steps as follows: the caprolactam wastewater after biochemical treatment is pumped into an acid regulation reactor, acid is added, and pH is regulated to 2-5; the wastewater is discharged and enters an oxidation pond, and hydrogen peroxide and an iron-copper complex agent are added to the wastewater for sufficient oxidation; alkali is added to effluent, pH is regulated to 6-8, and produced precipitates are removed with a precipitation technology; treated wastewater effluent enters a coagulating basin, and powdered activated carbon and an efficient dephosphorization agent are added to the wastewater; the wastewater after sufficient reaction is treated with the precipitation technology and then is discharged. The invention further provides a device applied to the advanced treatment technology for the caprolactam wastewater. With the adoption of the technology and the device, organic components, chromaticity and total phosphorus in the wastewater are effectively removed, advanced treatment of the caprolactam wastewater after biochemical treatment is realized, the treatment efficiency is high, and the technology and the device are economically feasible.

Description

A kind of caprolactam wastewater advanced treatment process and device
Technical field
The invention belongs to field of waste water treatment, particularly relate to a kind of caprolactam wastewater process field.
Background technology
First highly purified pimelinketone and oxammonium sulfate are carried out condensation reaction and generate cyclohexanone-oxime by the production of hexanolactam oxime method at 80-110 DEG C.The cyclohexanone-oxime separated take oleum as catalyzer, is crude caprolactam at 80-110 DEG C through Beckmann rearrangement transposition, and crude caprolactam, by operations such as extraction, distillation, crystallizations, obtains high purity caprolactam.The raw material pimelinketone of oxime method can obtain hexalin by phenol hydrogenation, then dehydrogenation and obtaining; Or generating hexalin and pimelinketone by air oxidation of cyclohexane, the hexalin catalytic dehydrogenation after separation also generates pimelinketone.Enterprises different according to throughput in this machining process provides industrial chemicals production equipment for oneself, such as: pimelinketone device, oximes device, hydrogenation unit, hydrogen peroxide plant, salkali waste incinerator etc.The wastewater treatment difficulty using this technique to produce is larger.
For chemical plant, Hubei, it produces 100000 tons of Caprolactam units per year, provides pimelinketone, hydrogen peroxide, amidoxime gasifying device for oneself, CODcr=4500mg/l after these three kinds of sewage mixing, ammonia nitrogen=200mg/l, colourity=500 times, the sewage after abundant pre-treatment and biochemical treatment is down to CODcr=300mg/l, about colourity=200 times, effect is not had again through biochemical treatment, through the degraded of other oxidation units, its investment cost is higher, simultaneously poor effect.
General caprolactam wastewater is after biochemical treatment, and the basic clearance of CODcr is 90%, and more national permission discharge value 100mg/l is more or less the same, if but want to reach or more difficult lower than this value.Colourity, total phosphorus, CODcr are the difficulty in treatment of caprolactam wastewater.And cause its major cause being difficult to remain valid degraded to have: 1, waste water is after main body biochemical treatment, macromole class resolvability material (being measured by gel chromatography) that molecular weight concentrates on about 500,000 can be produced, be difficult to be degraded by biochemical secondary; 2, colourity is difficult to remove, and main reason is chromophoric group and the acting in conjunction of azo group; 3, total phosphorus, derive from oxime acid as sulfuric acid, polyphosphoric acid and can produce strong acid phosphorus pentachloride, phosphorus trichloride, benzene sulfonyl chloride, thionyl chloride etc. act under reset, generate corresponding substituted amide.And the polymkeric substance of phosphorus and derivative also produce in the process thereupon.As shown in the formula 1) shown in, cyclohexanone-oxime is reset and is generated hexanolactam under effect of sulfuric acid:
Chinese invention patent CN201410811338 provides a kind of method of salting-out process process caprolactam wastewater, its invention first by saltout and throwing out partial organic substances in waste water is precipitated, by reacted waste water and precipitation difference biochemistry and burning disposal further, it is to the caprolactam wastewater of big yield without specific aim, and energy consumption, investment, working cost all can be higher.
Chinese invention patent CN201420637546 discloses a kind of wastewater of caprolactam production treatment unit, by effects such as biochemistry pool, strainer, catalyzed oxidation pond, intermediate pool, take into account the oxygenizement of ozonizer generates ozone to system simultaneously, thus reach the object of efficient process.Then, system lacks the specific aim research to tail end wastewater, and in ozone use procedure, air source ozone efficiency is low, and oxygen source ozone energy consumption is higher.
Chinese invention patent CN201410286565 discloses a kind of method and the device that utilize membrane technique process caprolactam wastewater, pH=6 ~ 7, sulfuric acid adjusts, and utilizes nanofiltration membrane, separation of C OD and ammonia nitrogen, obtain filtrate and concentrated solution respectively, permeate directly enters aerobic-anaerobic-aerobic biochemical treatment, and vitriol makees fertilizer, then has other products in crystallisation process, actual use and law compliance all have problems, and working cost is expensive.
Chinese invention patent CN201310716682 discloses a kind of Caprolactam industrial waste water treatment method, hydrogen peroxide is introduced as oxygenant in traditional wet oxidation basis,, suitable reaction condition isotype good by catalyzer, good compared with traditional wet oxidative treatment efficiency, clearance is between 70 ~ 90%, B/C ratio is about 0.5, and then wet oxidation reduced price is expensive, lacks and widely uses value.
Chinese invention patent CN201310113564 discloses a kind for the treatment of process of hexanolactam biochemical waste water, caprolactam wastewater is after membrane filtration, and mother liquor returns biochemical system process, and filtrate introduces ozone reactor, pass into the gas of ozone, temperature 10 ~ 40 degrees Celsius, pressure 0 ~ 500kpa, controls certain gas-water ratio, water outlet COD is less than 50mg/L, turbidity is less than 5 degree, and then membrane filtration easily blocks, and system salinity can be caused after mother liquor reflux to increase.
Chinese invention patent CN201310035347 discloses a kind of administering method of wastewater of caprolactam production, comprise and add anthraquinones as catalyzer, promote the generation of hydroxyl radical free radical, be still the processing efficiency promoting wet oxidation in essence, be difficult to large-scale promotion.
Chinese invention patent CN201210592502 discloses a kind of waste water treatment process adopting Strong oxdiative coupling MBR, finally reach the first discharge standard in waste water comprehensive discharge standard, but Strong oxdiative uses in front end, working cost is expensive, sludge quantity is extremely many, and is difficult to steady running.
In sum, present stage lack efficient, economy by force, end-o f-pipe-control biochemical process targetedly, consider sludge yield, total phosphorus ligands simultaneously, finally realize the object of overall up to standard, enterprise competitive power.
Summary of the invention
The object of the present invention is to provide a kind of advanced treatment process of energy sweetly disposition caprolactam wastewater, facilitate Automated condtrol, processing cost is low, the caprolactam wastewater advanced treatment process that COD, total phosphorus and colourity processing efficiency are high, be applicable to process inlet COD concentration and be less than 400mg/L, colourity is less than 200 times, and total phosphorus is less than 10mg/l.
The technical scheme realizing the object of the invention is as follows:
A kind of caprolactam wastewater advanced treatment process, comprises the following steps:
1) caprolactam wastewater after biochemical treatment is squeezed into acid adjustment reactor, acid adding adjustment pH to 2-5.
2) through step 1) process after caprolactam wastewater water outlet after enter oxidation pond, hydrogen peroxide and iron copper recombiner is added in waste water, described iron copper recombiner obtains by by composite according to a certain percentage to iron powder, copper powder, by the acting in conjunction of hydroxyl radical free radical and iron copper recombiner, by polymer hard-degraded substance Strong oxdiative, selectively destroy ring key, de-steady, open loop chain rupture, thus reduce COD.
3) by step 2) water outlet of oxidation pond adds alkali adjustment pH to 6-8, and remove the precipitation produced through conventional depositing technology process, comprise the Fe3 of colloidalmaterial, generation +as the precipitation etc. that coagulating agent produces.
4) through step 3) process after wastewater effluent enter coagulation basin, Powdered Activated Carbon and efficient dephosphorization agent is added in waste water, abundant reaction, by the acting in conjunction of Powdered Activated Carbon and efficient dephosphorization agent at coagulation basin by colourity and total phosphorus ligands, thus reach final emission standard.。
5) through step 4) process after waste water discharge after conventional depositing technology process.
Preferably, described step 1) in optimum apjustment pH be 2.5-3.0.
Preferably, described step 2) described in the iron copper ratio of iron copper recombiner at 9:1-19:2, order number is 200-400 order, has remarkable catalytic oxidation effect for this catalyzer of annular material.
Further, the dosage of described iron copper recombiner is 10-40mg/L, and described hydrogen peroxide concentration is 30% (w/w), and described hydrogen peroxide dosage and organism mass ratio are 1:1-4:1.
Preferably, described waste water is 1-6h in the oxidation pond residence time.
Preferably, described step 3) in optimum apjustment pH be 6.8-7.2.
Preferably, described step 4) in Powdered Activated Carbon be wood activated charcoal, specific surface area is 600-1000m 2/ g, the dosage of Powdered Activated Carbon is 10-20mg/L, and it is 1:5-1:10 that Powdered Activated Carbon and efficient dephosphorization agent add mass concentration ratio.
Preferably, described waste water is 10-30minutes in the coagulation basin residence time.
Preferably, above steps is by PLC programming realization Automated condtrol: described step 1) and step 3) in by the automatic feeding of pH automatic monitoring system control medicine system, realize the accurate control of pH value; Described step 2) in after adjusted pH value to acid waste water crosses the monitoring of preposition COD monitor, initial hydrogen peroxide and iron copper recombiner dosage is determined by the simulation of plc data database data, water outlet after advanced oxidation baffling reaction zone is fully reacted, water outlet is again through secondary COD detector instrument, carry out plc data storehouse simulated data and carry out check adjustment chemical feeding quantity, maximize and reduce and control chemical feeding quantity.
Another object of the present invention is to the device providing a kind of caprolactam wastewater advanced treatment process to use, comprise the acid adjustment reactor, oxidation pond, alkali tune reactor, primary sedimentation basin, coagulation basin and the secondary sedimentation basins that are connected by pipeline successively.Caprolactam wastewater after biochemical treatment is adjusted to acidity through acid adjustment reactor, abundant Strong oxdiative under hydrogen peroxide and the acting in conjunction of iron copper recombiner in oxidation pond again, then in alkali tune reactor, pH is adjusted to neutral, after in primary sedimentation basin, remove the precipitation of generation, waste water continues to enter in coagulation basin by removing colourity and total phosphorus under the effect of gac and efficient dephosphorization agent, finally by the process of secondary sedimentation basins depositing technology, get rid of waste water, the COD of water outlet, colourity and total tp removal rate are able to further lifting, meet emission request.
Preferably, described oxidation pond and coagulation basin are all provided with traverse baffle, to reach the object of abundant high efficient mixed, absorption, ensureing fully carrying out of reaction to greatest extent by controlling waste water at oxidation pond and the coagulation basin baffling reaction zone residence time, flow velocity.
Beneficial effect of the present invention is: 1, the caprolactam wastewater of biochemical treatment improves the clearance of COD, total phosphorus and colourity further after above-mentioned art breading; 2, the feature of about 500,000 is concentrated on for described caprolactam wastewater middle-molecular-weihydroxyethyl, a large amount of catalyst developments and applied research are carried out, for the feature of annular material, develop the iron copper recombiner with remarkable catalytic effect, not only there is remarkable catalytic effect, the nascent state Fe produced in its use procedure by the iron copper recombiner of proportional arrangement of the present invention 3+significant contribution is had as coagulating agent to removal COD in follow-up coagulation, depositing technology; 3, by Powdered Activated Carbon and efficient dephosphorization agent in conjunction with coagulation process, realize eliminating colourity and total phosphorus at a conversion zone simultaneously; 4, treatment process is easy, easily be automated control, the automatic control system of pH value ensure that the removal effect of best COD, colourity and total phosphorus, also can carry out digital simulation according to monitoring data by PLC integrated data base, realize the automatic control of hydrogen peroxide and iron copper recombiner charging capacity, precisely effective, saving added amount of chemical avoids secondary pollution.
Accompanying drawing explanation
Fig. 1: the device schematic diagram of the advanced treatment process of a kind of hexanolactam sewage of the present invention;
Wherein, 1-acid adjustment reactor; 2-advanced oxidation baffling reaction zone; 3-alkali tune reactor; 4-primary sedimentation basin; 5-highly effective coagulation baffling reaction zone; 6-secondary sedimentation basins; 7-qualified discharge pond; 8-sludge sump; 9-pH monitors; 10-sulfuric acid medicine system; 11-initial COD monitoring device; 12-hydrogen peroxide, iron copper recombiner medicine system; 13-end COD monitoring device, pH monitoring device; 14-sodium hydroxide medicine system; 15-Powdered Activated Carbon and high efficiency dephosphorating agent feeding device; 16-PLC system database.
Embodiment
Illustrate how the present invention realizes below in conjunction with accompanying drawing and embodiment:
Embodiment 1
As shown in Figure 1, the caprolactam wastewater after biochemical treatment enters acid adjustment reactor 1, automatically controls sulfuric acid medicine system 10 and regulates waste water ph to 2-5, be preferably 2.5-3.0 by pH monitoring device 9 and PLC programming;
Water outlet enters advanced oxidation baffling reaction zone 2 and carries out Strong oxdiative, hydrogen peroxide is provided with in advanced oxidation baffling reaction zone 2, iron copper recombiner medicine system 12, waste water enters before and after advanced oxidation baffling reaction zone 2 and is respectively equipped with initial COD monitoring device 11 and end COD monitoring device 13, adjust the sewage of PH by after preposition COD monitoring device 11 monitoring, carry out digital simulation by PLC system database 16 and determine initial hydrogen peroxide and iron copper recombiner dosage, water outlet after advanced oxidation baffling reaction zone is fully reacted, water outlet is monitored through end COD monitoring device 13 again, PLC system database 16 simulated data is utilized to carry out check adjustment chemical feeding quantity, maximize and reduce and control chemical feeding quantity,
Water outlet enters alkali tune reactor 3, automatically controls sodium hydroxide medicine system 14 and regulates waste water ph to 6-8, be preferably 6.8-7.2 by pH monitoring device 13 and PLC programming;
Water outlet enters primary sedimentation basin 4 and removes the precipitation of generation and drained into sludge sump 8;
Water outlet enters efficient baffling reaction zone 5, is provided with Powdered Activated Carbon and efficient dephosphorization agent feeding device 15 in it, removes colourity and total phosphorus in conjunction with coagulation process;
Last water outlet enters secondary sedimentation basins 6 and removes the precipitation that produces and drained into sludge sump 8, and waste water drains into qualified discharge pond 7, and after this art breading, the COD of caprolactam wastewater, colourity and total tp removal rate promote further, meet emission request.
Embodiment 2
Hubei hexanolactam sewage load 4000t/d, system biochemical final settling tanks sewage water outlet: COD=400mg/l, colourity=200 times, total phosphorus approximates 40mg/l.
After advanced treatment, COD is less than 200mg/l, colourity=20 times, and total phosphorus approximates 0.3mg/l.
Advanced oxidation residence time 55minutes, COD clearance about 30 ~ 40%, highly effective coagulation baffling reaction zone residence time 30minutes, COD clearance about 30 ~ 50%.
Embodiment 3
Shandong hexanolactam sewage load 4000t/d, system biochemical final settling tanks sewage water outlet: COD=300mg/l, colourity=200 times, total phosphorus approximates 36mg/l.
Behind advanced oxidation baffling reaction zone, COD is less than 100mg/l, and colourity is less than 10 times, and total phosphorus approximates 0.5mg/l.
Advanced oxidation residence time 90minutes, COD clearance about 45 ~ 50%, highly effective coagulation baffling reaction zone residence time 30minutes, COD clearance about 30 ~ 50%.
Embodiment 4
Jiangsu hexanolactam sewage load 4000t/d, system biochemical final settling tanks sewage water outlet: COD=200mg/l, colourity=200 times, total phosphorus approximates 20mg/l.
Behind advanced oxidation baffling reaction zone, COD is less than 70mg/l, and colourity is less than 10 times, and total phosphorus approximates 0.5mg/l.
Advanced oxidation residence time 4h, COD clearance about 50 ~ 55%, highly effective coagulation baffling reaction zone residence time 20minutes, COD clearance about 20 ~ 40%.
Embodiment 5
Zhejiang caprolactam wastewater wastewater treatment capacity is 8000t/d, water outlet COD=150mg/L after system biochemistry, total phosphorus 2.8mg/L, adding hydrogen peroxide concentration is 200mg/L (wherein effective content is 30% (w/w)), and iron-copper dosage is 10mg/L, and initial pH value is adjusted to about 3.5, gac dosage is 20mg/L, efficient dephosphorization agent dosage is 200mg/L, and water outlet COD is less than 60mg/L, and total phosphorus is less than 0.8mg/L.Water inlet molecular-weight average is 554300, and water outlet molecular-weight average is 108600.
Embodiment 6
Jiangsu caprolactam wastewater wastewater treatment capacity is 3600t/d, water outlet COD=120mg/L after system biochemistry, total phosphorus 2.3mg/L, adding hydrogen peroxide concentration is 400mg/L (wherein effective content is 30% (w/w)), and iron-copper dosage is 40mg/L, and initial pH value is adjusted to about 3, gac dosage is 10mg/L, efficient dephosphorization agent dosage is 50mg/L, and water outlet COD is less than 80mg/L, and total phosphorus is less than 0.9mg/L.Water inlet molecular-weight average is 354700, and water outlet molecular-weight average is 97600.

Claims (10)

1. a caprolactam wastewater advanced treatment process, comprises the following steps:
1) caprolactam wastewater after biochemical treatment is squeezed into acid adjustment reactor, acid adding adjusts pH to 2-5.
2) through step 1) process after caprolactam wastewater water outlet after enter oxidation pond, in waste water, add hydrogen peroxide and iron copper recombiner, fully oxidized.
3) by step 2) water outlet of oxidation pond adds alkali adjustment pH to 6-8, removes the precipitation produced through conventional depositing technology process.
4) through step 3) process after wastewater effluent enter coagulation basin, in waste water, add Powdered Activated Carbon and dephosphorizing agent, fully react.
5) through step 4) process after waste water discharge after conventional depositing technology process.
2. caprolactam wastewater advanced treatment process according to claim 1, is characterized in that, described step 1) in adjusted to ph be 2.5-3.0.
3. caprolactam wastewater advanced treatment process according to claim 1, is characterized in that, described step 2) described in the iron copper ratio of iron copper recombiner be 9:1-19:2, order number is 200-400 order.
4. caprolactam wastewater advanced treatment process according to claim 1, it is characterized in that, the dosage of described iron copper recombiner is 10-40mg/L, and described hydrogen peroxide concentration is 30% (w/w), and described hydrogen peroxide dosage and organism mass ratio are 1:1-4:1.
5. the caprolactam wastewater advanced treatment process according to claim 1-4 any one, is characterized in that, described waste water is 1-6h in the oxidation pond residence time.
6. caprolactam wastewater advanced treatment process according to claim 1, is characterized in that, described step 3) in adjustment pH be 6.8-7.2.
7. caprolactam wastewater advanced treatment process according to claim 1, is characterized in that, described step 4) in Powdered Activated Carbon be wood activated charcoal, specific surface area is 600-1000m 2/ g, the dosage of Powdered Activated Carbon is 10-20mg/L, and it is 1:5 ~ 1:10 that Powdered Activated Carbon and dephosphorization agent add mass concentration ratio.
8. the caprolactam wastewater advanced treatment process according to claim 1-4 or 6-7 any one, is characterized in that, described waste water is 10-30minutes in the coagulation basin residence time.
9. a device for caprolactam wastewater advanced treatment process use as claimed in claim 1, be is characterized in that, comprise the acid adjustment reactor, oxidation pond, alkali tune reactor, primary sedimentation basin, coagulation basin and the secondary sedimentation basins that are connected by pipeline successively; Described acid adjustment reactor is provided with pH monitoring device and sour medicine system; Described oxidation pond is provided with hydrogen peroxide, iron copper recombiner medicine system, and described oxidation pond water inlet and water outlet are equipped with COD monitoring device; Described alkali tune reactor is provided with alkali medicine system and pH monitoring device; Described coagulation basin is provided with Powdered Activated Carbon and efficient dephosphorization agent feeding device.
10. the device of caprolactam wastewater advanced treatment process use according to claim 9, it is characterized in that, described oxidation pond and coagulation basin are all provided with traverse baffle.
CN201510868816.0A 2015-12-01 2015-12-01 Advanced treatment technology for caprolactam wastewater and device Pending CN105502732A (en)

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Publication number Priority date Publication date Assignee Title
CN106477809A (en) * 2016-10-31 2017-03-08 上海明诺环境科技有限公司 A kind of method that caprolactam wastewater is processed
CN110204128A (en) * 2019-07-09 2019-09-06 上海环境保护有限公司 A kind of caprolactam sewerage advanced treatment process
CN111792751A (en) * 2020-06-18 2020-10-20 神马实业股份有限公司 Treatment method of caprolactam production wastewater
CN112591846A (en) * 2020-12-24 2021-04-02 北京安力斯环境科技股份有限公司 MPUV advanced oxidation system for treating high-concentration and difficultly-degraded organic wastewater
CN113912220A (en) * 2021-11-17 2022-01-11 扬州优境环境工程有限公司 Process for treating caprolactam ammoximation wastewater by hydrogen peroxide catalytic oxidation
CN114426349A (en) * 2020-09-18 2022-05-03 中国石油化工股份有限公司 Pretreatment method of ammoximation wastewater

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CN101704606A (en) * 2009-04-27 2010-05-12 南通泰禾化工有限公司 Treatment method of waste water containing organic phosphorus
CN104495989A (en) * 2014-12-24 2015-04-08 武汉大学 Electrochemical oxidation device for advanced treatment of wastewater produced by amidoximation
CN104649510A (en) * 2014-12-22 2015-05-27 中国天辰工程有限公司 Method for treating sewage generated from process for producing caprolactam by utilizing cyclohexanone

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060016762A1 (en) * 2002-03-14 2006-01-26 Cha Daniel K Process for treating waste from the production of energetics
CN101704606A (en) * 2009-04-27 2010-05-12 南通泰禾化工有限公司 Treatment method of waste water containing organic phosphorus
CN104649510A (en) * 2014-12-22 2015-05-27 中国天辰工程有限公司 Method for treating sewage generated from process for producing caprolactam by utilizing cyclohexanone
CN104495989A (en) * 2014-12-24 2015-04-08 武汉大学 Electrochemical oxidation device for advanced treatment of wastewater produced by amidoximation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106477809A (en) * 2016-10-31 2017-03-08 上海明诺环境科技有限公司 A kind of method that caprolactam wastewater is processed
CN110204128A (en) * 2019-07-09 2019-09-06 上海环境保护有限公司 A kind of caprolactam sewerage advanced treatment process
CN111792751A (en) * 2020-06-18 2020-10-20 神马实业股份有限公司 Treatment method of caprolactam production wastewater
CN114426349A (en) * 2020-09-18 2022-05-03 中国石油化工股份有限公司 Pretreatment method of ammoximation wastewater
CN112591846A (en) * 2020-12-24 2021-04-02 北京安力斯环境科技股份有限公司 MPUV advanced oxidation system for treating high-concentration and difficultly-degraded organic wastewater
CN113912220A (en) * 2021-11-17 2022-01-11 扬州优境环境工程有限公司 Process for treating caprolactam ammoximation wastewater by hydrogen peroxide catalytic oxidation

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Application publication date: 20160420