CN107986569A - A kind of high nitrogen printing waste water treatment for reuse system and its application method - Google Patents

A kind of high nitrogen printing waste water treatment for reuse system and its application method Download PDF

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Publication number
CN107986569A
CN107986569A CN201711340738.2A CN201711340738A CN107986569A CN 107986569 A CN107986569 A CN 107986569A CN 201711340738 A CN201711340738 A CN 201711340738A CN 107986569 A CN107986569 A CN 107986569A
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waste water
treatment
water
nitrogen
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CN107986569B (en
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李方
季慕尧
田晴
刘艳彪
夏琴
陈洪腾
潘玉婷
芮豪杰
王倩
彭翔
杨波
马春燕
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Mbp Environmental Engineering Co ltd
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Donghua University
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/28—Anaerobic digestion processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/28—Anaerobic digestion processes
    • C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • 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
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes

Abstract

The present invention relates to a kind of high nitrogen printing waste water treatment for reuse system and its application method, including 4 subsystems：1# subsystems：Stamp pre-treatment workshop section high-concentration organic wastewater treatment system, 2# subsystems：Stamp workshop section high-nitrogen waste water processing system, 3# subsystems：Film advanced treating and reclaiming system, 4# subsystems：Sludge reduction processing system.According to the difference of each workshop section's water quality and quantity of printing technology, collect respectively and carry out dual treatment and reuse, wherein pre-treatment waste water, printing waste water and poaching wastewater are respectively enterd is handled into 1~3# subsystems, and the sludge of generation enters 4# subsystems and carries out minimizing processing.The system uses Anammox technology, solves the problems, such as such waste water carbon-nitrogen rate numerous imbalances.This method system altitude integrates, and control is accurate, can effectively solve printing waste water denitrogenation hardly possible, it is of high cost the problem of, while realize sludge reduction.

Description

A kind of high nitrogen printing waste water treatment for reuse system and its application method
Technical field
The invention belongs to technical field of sewage, more particularly to a kind of high nitrogen printing waste water treatment for reuse system and its make Use method.
Background technology
Reactive printing is one of technique the most universal in dyeing and finishing technology.Its technological process includes pre-treatment and stamp mistake Journey, pre-treating technology generally comprise three steps of conventional desizing, kiering and bleaching；Printing technology includes bottom dyeing-stamp-baking Dry-decatize-bake-wash-soap-is washed.Wherein desized wastewater water only accounts for 10% or so of whole waste water, still The contribution degree of total COD amounts accounts for 60%~70%, and the major pollutants in desized wastewater are the slurries resigned from office, and main component is shallow lake Powder and polyethylene glycol PVA, COD value are up to 20000~30000mg/L, and COD amounts account for more than half of dyeing waste water total amount, BOD/ COD value is less than 0.1, and bio-degradable is poor, and the end treatment to dyeing waste water brings very big pressure.Stamp process produces useless During water mostlys come from washing and soaps, main pollutant is the thickener washed off, mainly containing sodium alginate and urea etc. Material.Since dye dosage is big, bath raio is small in printing with reactive dye, easily to assemble between dyestuff, the dissolubility of dyestuff is deteriorated, Influence printing quality, thus permeability when generally adding urea in reactive printing to improve the dissolubility of dyestuff, decatize and The fixation rate of fiber, but the ammonia nitrogen compound that urea decomposites in waste water can be such that the total nitrogen in waste water drastically raises.Generally The total nitrogen of comprehensive wastewater of reactive printing printing and dyeing mill reach 300~500mg/L, and COD concentration is also in 2000~3000mg/L, Not only total nitrogen concentration is high for this kind of waste water, but also carbon-nitrogen ratio imbalance, than more serious, intractability is big.
Traditional technique of denitrogenating is A/O techniques, i.e., nitrification/denitrification technology, biological denitrificaion basic principle are as follows：
(1) aminating reaction.In the case where ammonifiers acts on, organic nitrogen, which is decomposed, is converted into ammoniacal nitrogen, this process is known as ammonification Process, ammonifying process are easy to carry out.
(2) nitration reaction.Nitration reaction is completed by aerobic autotrophic type microorganism, under aerobic state, is using inorganic carbon Carbon source is by NH4 +It is melted into NO2 -, then it is reoxidised into NO3 -Process.Nitrifying process is segmented into two stages.First stage be by Mineralized nitrogen is NO by nitrococcus2 -, Nitrite transformation is nitrate (NO by nitrifier by second stage3 -).This reaction Necessary condition be that dissolved oxygen is higher, DO>2mg/L, this requires that the organic concentration in mixed liquor is in relatively low water It is flat.
(3) anti-nitration reaction.Anti-nitration reaction is under anaerobic condition, and denitrifying bacterium is by nitrite nitrogen, nitrate nitrogen It is reduced into gaseous nitrogen (N2) process.Denitrifying bacterium is heterotroph microorganism, belongs to facultative bacteria more, in anaerobic condition, profit By the use of the oxygen in nitrate as electron acceptor, electron donor is used as using organic matter (the BOD components in sewage), there is provided energy and quilt It is oxidation-stabilized.The necessary condition of this reaction is that the biodegradable organic concentration in mixed liquor is in higher level.
For reactive printing waste water, it is all to be difficult to biodegradable, traditional A/O methods can not just realize that organic matter is most of Effective denitrification.Anaerobic ammonia oxidation process is quickly grown since the 1990s, and Anammox refers in anaerobism bar Under part, refer under anaerobism or anoxia condition, microorganism is directly with NH4 +For electron donor, with NO2 -For electron acceptor, by NH4 + And NO2 -It is transformed into N2Biological oxidation process.In the process, NH4 +Participation of the oxidation without molecular oxygen, and NO2 -Also It is former to be participated in without organic matter.The process for from the waste water of anaerobic nitrification denitrogenation there is good application prospect, for print Flower waste water high ammonia-nitrogen wastewater can have good application, not only avoid with tradition A/O techniques because can not effectively denitrifying ask Topic, without flowing back and being aerated, there is good economic benefits.
Membrane separation technique is one of technique that application range is most wide in current water treatment field.Membrane separation technique is efficient because of its Easy-operating characteristic, becomes one of direct effective measures for alleviating water resources crisis, especially water pollution.UF membrane is in water The engineer application of process field, with the increase of international water resource process demand and the Depth Study of related scientific research personnel, these Membrane technology have it is compact-sized, conveniently install, separate the advantages that efficient.And a large amount of COD concentration are high in printing waste water, biochemical drop The waste water of solution property difference, traditional bioanalysis are difficult that processing is complete.Stamp pre-treatment wastewater effluent and printing waste water processing water outlet collection The middle film process reclaiming system that enters carries out reuse.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of high nitrogen printing waste water treatment for reuse system and its user Method, respectively enters into 1 according to waste component pre-treatment waste water, printing waste water and the poaching wastewater collected respectively different from concentration ~3# subsystems are handled, and the sludge of generation enters 4# subsystems and carries out minimizing processing.This method system altitude integrates, control System is accurate, can effectively solve the problems, such as that printing waste water denitrogenation is difficult.
A kind of high nitrogen printing waste water treatment for reuse system of the present invention, including 4 subsystems：
(1) 1# subsystems：Stamp pre-treatment workshop section high-concentration organic wastewater treatment system, including regulating reservoir 1, sedimentation basin, Hydrolysis acidification pool, sbr reactor pond；
(2) 2# subsystems：Stamp workshop section high-nitrogen waste water processing system, including regulating reservoir 2, UASB reaction tanks, SHARON are anti- Ying Chi, ANAMMOX reaction tank；
(3) 3# subsystems：Film advanced treating and reclaiming system, including it is membrane bioreactor MBR, ultrafiltration membrane UF systems, anti- Permeate RO systems；
(4) 4# subsystems：Sludge reduction processing system, including anaerobic sludge digester, sludge concentration tank, sludge dewatering Pond, mud cake outward transport.
A kind of application method of high nitrogen printing waste water treatment for reuse system of the present invention, including：
(1) regulating reservoir 1 that stamp pre-treatment workshop section waste water enters 1# subsystems is collected；Water outlet enter sedimentation basin add acid and Coagulant carries out materializing strategy；Water outlet enters hydrolysis acidification pool and carries out biodegradable processing；Water outlet enters sbr reactor pond into acting charitably Oxygen biochemical treatment；Effluent COD concentration is 10000~20000mg/L；
(2) regulating reservoir 2 that stamp workshop section waste water enters 2# subsystems is collected；Water outlet enters UASB reaction tanks and carries out at anaerobism Reason, ammonia nitrogen NH is changed into by organic nitrogen4-N；Water outlet NH4- N concentration is 300~500mg/L, and COD concentration is 200~300mg/L, Biological denitrificaion processing is carried out into SHARON reaction tanks, makes NH4- N section is nitrified into NO2-N；Water outlet NH4- N concentration for 150~ 250mg/L, NO2- N concentration is 150~250mg/L, and COD concentration is 50~100mg/L, is detested into ANAMMOX reaction tanks Anaerobic ammonium oxidation denitrogenation processing；Water outlet TN concentration is less than 20mg/L；
(3) the UF systems that stamp rinsing workshop section waste water enters 3# subsystems are collected；Sbr reactor pond goes out in collection step (1) Water is concentrated together with ANAMMOX reaction tank water outlets in step (2) into the MBR of 3# subsystems, effluent COD concentration 500 ~800mg/L, into UF systems；Further concentrated together with rinsing workshop section's waste water with above-mentioned stamp, producing water ratio is 95~98%, is gone out Water COD concentration is 90~110mg/L, is further handled into RO systems, and producing water ratio is 70~80%, obtains concentrated water and water purification, 1# subsystems reprocessing, water purification reuse production are discharged or entered to concentrated water；
(4) sedimentation basin of 1# subsystems, hydrolysis acidification pool, sbr reactor pond in step (1), 2# subsystems in step (2) UASB reaction tanks, SHARON reaction tanks, ANAMMOX reaction tanks, the sludge produced in the MBR of 3# subsystems in step (3) are whole Anaerobic sludge digester into 4# subsystems carries out sludge reduction processing, through sludge condensation, dehydration, obtains mud cake outward transport.
The hydraulic detention time of the regulating reservoir 1 of 1# subsystems in the step (1) is 7~9h.
The hydrolysis acidification pool of 1# subsystems in the step (1) is mechanical agitation type or waterpower pulse formula, hydraulic retention Time is 36~48h, enables biodegradable larger molecular organics and changes into small organic molecule.
The hydraulic detention time in the sbr reactor pond of the 1# subsystems in the step (1) is 18~24h.
In the step (1) 1# subsystems treatment process mainly use materialization+hydrolysis acidification+Aerobic Process for Treatment biology Treatment process, makes difficult degradation PVA slurry materializations removal, the organic matter of easily biological-degradable be removed by bioanalysis, mitigates successive depths Organic loading during treatment process and reuse.
The hydraulic detention time of the regulating reservoir 2 of 2# subsystems in the step (2) is 7~9h.
The hydraulic detention time of the UASB reaction tanks of 2# subsystems in the step (2) is 12~24h.
The SHARON reaction tanks of 2# subsystems in the step (2) use intermittent aerating, and dissolved oxygen amount is 1.0~1.5mg/ L, temperature are 28~32 DEG C, and pH=7.5~8.3, hydraulic detention time is 16~24h.
The ANAMMOX reaction tanks of 2# subsystems in the step (2) collect the circulatory system using nitrogen, and inside carries out nitrogen Gas airflow stirring, excluding oxygen makes dissolved oxygen be 0, and hydraulic detention time is 3~6h.
The MBR of 3# subsystems in the step (3) uses hollow fiber microfiltration membrane, and hydraulic detention time is 12~24h, Larger molecular organics and remaining PVA isocolloids particle can be retained, the influent quality that MBR effluent qualities reach ultrafiltration membrane Ask, reduce the fouling membrane of ultrafiltration and RO films.
The UF systems of 3# subsystems in the step (3) use hollow fiber ultrafiltration membrane or tubular ultra-filtration membrane.
Concentrated water discharge in the step (3) extremely swims centralized sewage treatment plant.
36~72h of hydraulic detention time of the anaerobic sludge digester of 4# subsystems in the step (4).
The present invention combines the difference of each workshop section's water quality and quantity of printing technology, carries out dual treatment and reuse：Pre-treatment work Section waste water COD concentration is high, biodegradability is poor, water is small；The total nitrogen concentration of stamp stage waste water is high, and colourity is high, the low water of carbon-nitrogen ratio Measure small；Poaching wastewater concentration is low, water is big, to solve the problems such as denitrogenation in printing waste water processing procedure is difficult, of high cost.
Beneficial effect
(1) 4 sub- system designs of wastewater treatment and renovation system of the invention are ingenious, easy to operate, and precision control, utilizes Stamp pre-treatment waste water is handled with printing waste water shunting；Treated sewage reusing is realized using film advanced treating at the same time, reduces running cost With；Water quality requirement of the water purification finally obtained up to any process water in production.
(2) printing waste water processing system of the invention uses the Anammox denitrogenation of complete autotrophy, this technique is without big Amount aeration, oxygen supply energy consumption significantly decline, and save the energy, solve denitrification without additional carbon, reduce operating cost, be suitable for Enterprise's Industrial Waste Water Treatments based on reactive printing.
(3) the short distance nitration-anaerobic ammoxidation technology that the present invention uses, nitrification are controlled in Nitrification Stage, can be saved near 40% air demand or so, saves power consumption, can shorten hydraulic detention time, reduce the volume and floor space of reactor Tradition is de-.The denitrification process for solving the problems, such as traditional denitrification process at the same time needs additional carbon, has good sedimentation Performance and higher biological phase concentration, avoid sludge bulking.
(4) stamp handles waste water substantially without sludge output, and total system sludge output is few, and Treatment of Sludge expense is low.
Brief description of the drawings
Fig. 1 is the high nitrogen printing waste water treatment for reuse system process of the present invention.
Embodiment
With reference to specific embodiment, the present invention is further explained.It is to be understood that these embodiments are merely to illustrate the present invention Rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, people in the art Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited Scope.
Embodiment 1
Certain weaving Co., Ltd produces 6500 tons of cotton yarn natural production per year, produces 1000 tons of knitted fabric per year, produces knitting per year Product 4,500,000, are one and integrate cotton spinning, knitting, printing and dyeing, the textile enterprise of clothing.The dyeing and finishing wastewater of the enterprise is divided into Waste water caused by desized wastewater and stamp process, desized wastewater amount are 1600~2000m3/ d, printing waste water amount for 800~ 1000m3/ d, desized wastewater CODCrConcentration is 20000~30000mg/L, CODCr/BOD<0.3, belong to waste water difficult for biological degradation, Printing waste water nitrogen content reaches 300~500mg/L, and COD concentration is also in 2000~3000mg/L, and not only total nitrogen concentration is high, and And carbon-nitrogen ratio imbalance, than more serious, intractability is big.The said firm is for qualified discharge and reduces operating cost, and decision uses this hair Bright high nitrogen printing waste water processing and the intractable high nitrogen printing waste water of reclaiming system integrated technique Treatment and recovery.
(1) regulating reservoir 1 that stamp pre-treatment workshop section waste water enters 1# subsystems, hydraulic detention time 8h are collected；Water outlet Acid is added into sedimentation basin and coagulant carries out materializing strategy；Water outlet enters hydrolysis acidification pool and carries out biodegradable processing, uses Mechanical agitation type, hydraulic detention time 40h, enables biodegradable larger molecular organics and changes into small organic molecule；Go out Water enters sbr reactor pond and carries out aerobic treatment, hydraulic detention time 20h；Effluent COD concentration for 10000~ 20000mg/L。
(2) regulating reservoir 2 that stamp workshop section waste water enters 2# subsystems, hydraulic detention time 8h are collected；Water outlet enters UASB reaction tanks carry out Anaerobic Treatment, and hydraulic detention time 20h, ammonia nitrogen NH is changed into by organic nitrogen4-N；Water outlet NH4- N concentration For 300~500mg/L, COD concentration is 200~300mg/L, biological denitrificaion processing is carried out into SHARON reaction tanks, between Have a rest aeration, dissolved oxygen amount is 1.0~1.5mg/L, and temperature is 30 DEG C, and pH=7.5~8.3, hydraulic detention time makes NH for 20h4-N Part is nitrified into NO2-N；Water outlet NH4- N concentration is 150~250mg/L, NO2- N concentration is 150~250mg/L, and COD concentration is 50~100mg/L, Anammox denitrogenation processing is carried out into ANAMMOX reaction tanks, and the circulatory system is collected using nitrogen, internal Stream of nitrogen gas stirring is carried out, excluding oxygen makes dissolved oxygen be 0, hydraulic detention time 5h；Water outlet TN concentration is less than 20mg/L.
(3) the UF systems that stamp rinsing workshop section waste water enters 3# subsystems are collected；Sbr reactor pond goes out in collection step (1) Water is concentrated together with ANAMMOX reaction tank water outlets in step (2) into the MBR of 3# subsystems, using doughnut micro-filtration Film, hydraulic detention time 20h, effluent COD concentration are 500~800mg/L, the macromolecular PVA recycling profits of high concentration after concentration With difficult degradation desizing auxiliary agent PVA, UF systems are entered back into；Further concentrated together with rinsing workshop section's waste water with above-mentioned stamp, in Fibre ultrafiltration film, producing water ratio are 95~98%, and effluent COD concentration is 90~110mg/L, is further handled into RO systems, Producing water ratio is 70~80%, obtains concentrated water and water purification, and 1# subsystems reprocessing is discharged or entered to concentrated water, and water purification reaches reuse water quality It is required that the production of printing technology can be back to.
(4) sedimentation basin of 1# subsystems, hydrolysis acidification pool, sbr reactor pond in step (1), 2# subsystems in step (2) UASB reaction tanks, SHARON reaction tanks, ANAMMOX reaction tanks, the sludge produced in the MBR of 3# subsystems in step (3) are whole Into the anaerobic sludge digester of 4# subsystems, sludge reduction processing is carried out, hydraulic retention 72h, then through sludge condensation, de- Water, obtains mud cake outward transport.
Embodiment 2
Certain textile company is domestic larger knitting printing and dyeing enterprise, and production collects knitting and printing and dyeing and the whole body, and displacement is 10000~12000m3/ d, containing complicated ingredients such as abundant residues dyestuff, slurry, surfactant, alkaline agents in the waste water of discharge, Have the characteristics that colourity is big, organic concentration is high, alkaline strong, water quality and quantity changes greatly, using general physics, chemistry, biology Method removal effect is unsatisfactory.The desized wastewater amount of the said firm is 6000~8000m3/ d, printing waste water amount for 2000~ 4000m3/ d, desized wastewater CODCrConcentration is 20000~30000mg/L, CODCr/BOD<0.3 belongs to waste water difficult for biological degradation, Printing waste water nitrogen content reaches 300~500mg/L, and COD concentration is also in 2000~3000mg/L, and not only total nitrogen concentration is high, and And carbon-nitrogen ratio imbalance, than more serious, intractability is big.The said firm is for qualified discharge and reduces operating cost, and decision uses this hair Bright high nitrogen printing waste water processing and the intractable high nitrogen printing waste water of reclaiming system integrated technique Treatment and recovery.
(1) regulating reservoir 1 that stamp pre-treatment workshop section waste water enters 1# subsystems, hydraulic detention time 8h are collected；Water outlet Acid is added into sedimentation basin and coagulant carries out materializing strategy；Water outlet enters hydrolysis acidification pool and carries out biodegradable processing, uses Mechanical agitation type, hydraulic detention time 40h, enables biodegradable larger molecular organics and changes into small organic molecule；Go out Water enters sbr reactor pond and carries out aerobic treatment, hydraulic detention time 20h；Effluent COD concentration for 10000~ 20000mg/L。
(2) regulating reservoir 2 that stamp workshop section waste water enters 2# subsystems, hydraulic detention time 8h are collected；Water outlet enters UASB reaction tanks carry out Anaerobic Treatment, and hydraulic detention time 20h, ammonia nitrogen NH is changed into by organic nitrogen4-N；Water outlet NH4- N concentration For 300~500mg/L, COD concentration is 200~300mg/L, biological denitrificaion processing is carried out into SHARON reaction tanks, between Have a rest aeration, dissolved oxygen amount is 1.0~1.5mg/L, and temperature is 30 DEG C, and pH=7.5~8.3, hydraulic detention time makes NH for 20h4-N Part is nitrified into NO2-N；Water outlet NH4- N concentration is 150~250mg/L, NO2- N concentration is 150~250mg/L, and COD concentration is 50~100mg/L, Anammox denitrogenation processing is carried out into ANAMMOX reaction tanks, and the circulatory system is collected using nitrogen, internal Stream of nitrogen gas stirring is carried out, excluding oxygen makes dissolved oxygen be 0, hydraulic detention time 5h；Water outlet TN concentration is less than 20mg/L.
(3) the UF systems that stamp rinsing workshop section waste water enters 3# subsystems are collected；Sbr reactor pond goes out in collection step (1) Water is concentrated together with ANAMMOX reaction tank water outlets in step (2) into the MBR of 3# subsystems, using doughnut micro-filtration Film, hydraulic detention time 20h, effluent COD concentration are 500~800mg/L, the macromolecular PVA recycling profits of high concentration after concentration With difficult degradation desizing auxiliary agent PVA, UF systems are entered back into；Further concentrated together with rinsing workshop section's waste water with above-mentioned stamp, in Fibre ultrafiltration film, producing water ratio are 95~98%, and effluent COD concentration is 90~110mg/L, is further handled into RO systems, Producing water ratio is 70~80%, obtains concentrated water and water purification, and 1# subsystems reprocessing is discharged or entered to concentrated water, and water purification reaches reuse water quality It is required that the production of printing technology can be back to.
(4) sedimentation basin of 1# subsystems, hydrolysis acidification pool, sbr reactor pond in step (1), 2# subsystems in step (2) UASB reaction tanks, SHARON reaction tanks, ANAMMOX reaction tanks, the sludge produced in the MBR of 3# subsystems in step (3) are whole Into the anaerobic sludge digester of 4# subsystems, sludge reduction processing is carried out, hydraulic retention 72h, then through sludge condensation, de- Water, obtains mud cake outward transport.

Claims (6)

  1. A kind of 1. high nitrogen printing waste water treatment for reuse system, it is characterised in that：Including 4 subsystems：
    (1) 1# subsystems：Stamp pre-treatment workshop section high-concentration organic wastewater treatment system, including regulating reservoir 1, sedimentation basin, hydrolysis Acidification pool, sbr reactor pond；
    (2) 2# subsystems：Stamp workshop section high-nitrogen waste water processing system, including regulating reservoir 2, UASB reaction tanks, SHARON reaction tanks, ANAMMOX reaction tanks；
    (3) 3# subsystems：Film advanced treating and reclaiming system, including it is membrane bioreactor MBR, ultrafiltration membrane UF systems, reverse osmosis RO systems；
    (4) 4# subsystems：Sludge reduction processing system, including anaerobic sludge digester, sludge concentration tank, sludge dewatering pond, Mud cake is transported outward.
  2. 2. a kind of application method of high nitrogen printing waste water treatment for reuse system as claimed in claim 1, including：
    (1) regulating reservoir 1 that stamp pre-treatment workshop section waste water enters 1# subsystems is collected；Water outlet enters sedimentation basin and adds acid and coagulation Agent carries out materializing strategy；Water outlet enters hydrolysis acidification pool and carries out biodegradable processing；Water outlet enters sbr reactor pond and carries out aerobic life Change is handled；
    (2) regulating reservoir 2 that stamp workshop section waste water enters 2# subsystems is collected；Water outlet enters UASB reaction tanks and carries out Anaerobic Treatment, Organic nitrogen is changed into ammonia nitrogen NH4-N；Water outlet enters SHARON reaction tanks and carries out biological denitrificaion processing, makes NH4- N section nitrification into NO2-N；Water outlet enters ANAMMOX reaction tanks and carries out Anammox denitrogenation processing；
    (3) the UF systems that stamp rinsing workshop section waste water enters 3# subsystems are collected；In collection step (1) water outlet of sbr reactor pond with The water outlet of ANAMMOX reaction tanks is concentrated into the MBR of 3# subsystems together in step (2), and water outlet enters UF systems；With it is above-mentioned Stamp rinsing workshop section waste water further concentrates together, and water outlet is further handled into RO systems, obtains concentrated water and water purification, concentrated water drainage Go out or reprocessed into 1# subsystems, water purification reuse production；
    (4) sedimentation basin of 1# subsystems, hydrolysis acidification pool, sbr reactor pond in step (1), the UASB of 2# subsystems in step (2) Reaction tank, SHARON reaction tanks, ANAMMOX reaction tanks, the sludge produced in the MBR of 3# subsystems in step (3) fully enter The anaerobic sludge digester of 4# subsystems carries out sludge reduction processing, through sludge condensation, dehydration, obtains mud cake outward transport.
  3. A kind of 3. application method of high nitrogen printing waste water treatment for reuse system according to claim 2, it is characterised in that：Institute The hydraulic detention time for stating the regulating reservoir 1 of the 1# subsystems in step (1) is 7~9h；Hydrolysis acidification pool for mechanical agitation type or Waterpower pulse formula, hydraulic detention time are 36~48h；The hydraulic detention time in sbr reactor pond is 18~24h；Sbr reactor pond goes out Water COD concentration is 10000~20000mg/L.
  4. A kind of 4. application method of high nitrogen printing waste water treatment for reuse system according to claim 2, it is characterised in that：Institute The hydraulic detention time for stating the regulating reservoir 2 of the 2# subsystems in step (2) is 7~9h；The hydraulic detention time of UASB reaction tanks For 12~24h；SHARON reaction tanks use intermittent aerating, and dissolved oxygen amount is 1.0~1.5mg/L, and temperature is 28~32 DEG C, pH= 7.5~8.3, hydraulic detention time is 16~24h；ANAMMOX reaction tanks collect the circulatory system using nitrogen, and inside carries out nitrogen Airflow stirring, excluding oxygen makes dissolved oxygen be 0, and hydraulic detention time is 3~6h；ANAMMOX reaction tank water outlet TN concentration is less than 20mg/L。
  5. A kind of 5. application method of high nitrogen printing waste water treatment for reuse system according to claim 2, it is characterised in that：Institute The MBR for stating the 3# subsystems in step (3) uses hollow fiber microfiltration membrane, and hydraulic detention time is 12~24h；UF systems use Hollow fiber ultrafiltration membrane or tubular ultra-filtration membrane；UF systems effluent COD concentration is 90~110mg/L, and producing water ratio is 95~98%；RO System producing water ratio is 70~80%.
  6. A kind of 6. application method of high nitrogen printing waste water treatment for reuse system according to claim 2, it is characterised in that：Institute State 36~72h of hydraulic detention time of the anaerobic sludge digester of the 4# subsystems in step (4).
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