CN106495392A - A kind of sub-prime shunting printing and dyeing wastewater treatment system and method - Google Patents
A kind of sub-prime shunting printing and dyeing wastewater treatment system and method Download PDFInfo
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- CN106495392A CN106495392A CN201610859845.5A CN201610859845A CN106495392A CN 106495392 A CN106495392 A CN 106495392A CN 201610859845 A CN201610859845 A CN 201610859845A CN 106495392 A CN106495392 A CN 106495392A
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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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- 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
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- 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
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
Abstract
The invention discloses a kind of sub-prime shunting printing and dyeing wastewater treatment system and method, system includes the second grid canal successively using waste pipe connection, second regulating reservoir, mixing pit, preliminary sedimentation tank, second hydrolysis acidification pool, biological contact oxidation pond and second pond, system also includes the first grid canal successively using waste pipe connection, first regulating reservoir, connected by waste pipe between first hydrolysis acidification pool and UASB anaerobic reation pools and UASB anaerobic reation pools and the second regulating reservoir, sludge in the second pond flows sludge reflux pond successively by sludge pipe, sludge concentration tank and sludge dehydration device are finally realized outward transport landfill or are burned.Treatment method of printing and dying wastewater based on the system is first processed to the waste water of high concentration, and processed waste water is handled together with other comprehensive wastewaters again, sub-prime triage operator, can be reduced system Construction expense and operating cost, and be disclosure satisfy that wastewater treatment is required.
Description
Technical field
The present invention relates to Technology of Sewage field, more particularly to a kind of sub-prime shunting printing and dyeing wastewater treatment system and method.
Background technology
Four operations of dyeing and printing process will discharge waste water, pretreatment stage (including desizing, boiling-off, bleach, singe, silk
The operations such as light) desized wastewater, boiled-off waste water, bleaching effluent and mercerizing waste water will be discharged, dyeing process discharges dyeing waste-water, washing
Operation discharges printing waste water and soap lye waste water, and arranging process then discharges arrangement waste water.
According to CODcrJust, dyeing waste water can be divided into high-concentration waste water and (give up including desized wastewater, boiled-off waste water and bleaching
Water, CODcr：12000mg/L～15000mg/L) comprehensive wastewater (mercerizing waste water, dyeing waste-water, printing waste water and arrangement waste water,
CODcr：2000mg/L～2500mg/L), the ratio substantially 1: 3 of the water yield of high-concentration waste water and comprehensive wastewater.
Its water quality characteristicses property difference of printing and dyeing each operation discharge waste water is larger：
(1) desized wastewater
Desizing is, with chemical agent, the slurry of institute's band on fabric is stripped (be hydrolyzed or enzyme is decomposed into water-soluble analyte),
The partial impurities of fiber itself are also removed simultaneously.Desized wastewater is organic wastewater, containing slurry degradation thing, Soft flocks, enzyme etc., gives up
In alkalescence, pH value is 12 or so to water, CODcrContent is very high.When using PVA or CMC chemical sizwes, the BOD of waste water5Decline,
But CODcrVery high, waste water is more difficult.
(2) boiled-off waste water
Boiling-off is the aqueous solution with caustic soda and surfactant etc., in high temperature (120 DEG C) and alkaline (pH=10-13) condition
Under, boiling-off is carried out to bafta, the impurity such as grease, wax, pectin contained by removal fiber, to ensure to bleach the processing with dyeing and finishing
Quality.The boiled-off waste water water yield is big, and water temperature is high, in dark brown and strong basicity (being about 0.3% containing alkali concn).Contain in boiled-off waste water
The materials such as cellulose, tartaric acid, wax, grease, alkali, surfactant, nitrogen-containing compound, its BOD5And CODcrValue is higher (per liter
Reach thousands of milligrams), pollutant levels are high.
(3) bleaching effluent
Bleaching process is usually to remove fiber surface and inside with oxidants such as sodium hypochlorite, hydrogen peroxide, sodium chlorites
Impurity.The characteristics of bleaching effluent is that the water yield is big, and pollution level is lighter, BOD5And CODcrRelatively low, belong to compared with cleaning waste water, after process
Recyclable.
(4) mercerizing waste water
Mercerising is that fabric is being carried out solution process in soda lye, to improve the tensile strength of fiber, increases
The lustrous surface of fiber, reduces the affinity of the potential shrinkage factor and raising of fabric to dyestuff.Mercerizing waste water alkalescence relatively (contains by force
NaOH3%-5% or so), most printing and dyeing mills reclaim NaOH by being concentrated by evaporation, so mercerizing waste water is typically seldom discharged, pass through
Technique repeatedly uses the waste water of final discharge still in strong basicity, BOD5、CODCrHigher with SS values.
(5) dyeing waste-water
The major pollutants of dyeing waste-water are dyestuff and auxiliary agent.As different fibrous raw materials and product needed are using different
Dyestuff, auxiliary agent and colouring method, the dye uptake for adding various dyestuffs is different, and dye liquor species is different with concentration, makes dyeing waste-water
Change of water quality is very big., typically in strong basicity, the water yield is larger for dyeing waste-water, contains slurry, dyestuff, auxiliary agent, surfactant in water quality
Deng chroma in waste water may be up to thousand of times, CODCrCompared with BOD5Much higher, CODCrGenerally greater than 1000mg/L, BOD5/CODCrTypically little
In 0.2, biodegradability is poor.
(6) printing waste water
Printing waste water mostly come from color matching size mixing, the flushing waste water of printing roller, Screen Printing, and stamp post processing
When soap, washing waste water.Amount of slurry in due to print paste a few to tens of times more than amount of dye, therefore except dye in printing waste water
Outside material, auxiliary agent, also contain a large amount of slurries, BOD5And CODcrAll higher.Printing waste water amount is larger, and pollutant levels are higher, works as print
There is chromium trioxide to produce when during engraved roll plating cylinder using potassium bichromate, cylinder stripping chromium.These waste water toxic agents containing chromium individually will be located
Reason.
(7) waste water is arranged
Arrange the waste water water yield less, wherein containing Soft flocks, resin, finish, slurry, surfactant, formaldehyde etc..Arrange
Waste water quantity very little, affects on the water quality and quantity of full factory's composite waste also little.
After most for the treatment of of dyeing wastewater modes are all by above seven kinds of waste water synthesis at this stage, composite waste is calculated
Water quality and quantity, then the design of sewage treatment process is carried out, so whole waste water quality complicated component, intractability are big, run into
This and cost of investment are high, lack of targeted.In order to the hard-degraded substances such as PVA, CMC in composite waste are thoroughly degraded, typically must
Corresponding Advanced Oxidation Technics in Dealing must be added, investment and operating cost are higher, are unfavorable for engineer applied, while bringing to user
Larger financial burden.
Content of the invention
The purpose of the present invention is overcoming the defect of prior art, there is provided a kind of sub-prime shunting printing and dyeing wastewater treatment system and
The system is applied to carry out the processing method of dyeing waste water, the system is first pre-processed to the waste water of high concentration, pretreated
Waste water is handled together with other comprehensive wastewaters again, sub-prime triage operator, can reduce system Construction expense and operating cost, and can
Meet wastewater treatment requirement.
The present invention using technical scheme is：
A kind of sub-prime shunts printing and dyeing wastewater treatment system, it is characterised in that including successively using the second lattice of waste pipe connection
Grid canal, the second regulating reservoir, mixing pit, preliminary sedimentation tank, the second hydrolysis acidification pool, biological contact oxidation pond and second pond, system are also wrapped
Include successively using the first grid canal of waste pipe connection, the first regulating reservoir, the first hydrolysis acidification pool and UASB anaerobic reation pools and
Connected by waste pipe between UASB anaerobic reation pools and the second regulating reservoir, the first acid solution storage tank passes through chemical feed pipe and described first
Regulating reservoir connects, and the second acid solution storage tank is connected with second regulating reservoir by chemical feed pipe, and medicament storage tank and adjuvant storage tank are distinguished
It is connected with the mixing pit by chemical feed pipe, air blast is connected with the biological contact oxidation pond by air hose, high-concentration waste
Water is first passed through
Pond processes and finally realizes from second pond that qualified discharge, the sludge in the second pond flow sludge reflux successively by sludge pipe
In pond and sludge concentration tank, outward transport landfill finally being realized through sludge dehydration device processed or being burned, the UASB anaerobism is anti-
Effluent part in Ying Chi can be back in the first hydrolysis acidification pool by waste pipe, the part in first hydrolysis acidification pool
Waste water can be back in the first regulating reservoir by waste pipe, and the partial sludge in the sludge reflux pond is back to by sludge pipe
In second hydrolysis acidification pool and biological contact oxidation pond, the sludge in second hydrolysis acidification pool and biological contact oxidation pond is also
Internal circulation flow is carried out by sludge pipe, the sludge in the preliminary sedimentation tank and the second hydrolysis acidification pool is by sludge pipe stream to sludge
In concentration basin.
Further, first regulating reservoir and the second regulating reservoir include elevator pump, boring aeration pipe and blower fan, and first adjusts
Section pond and the second regulating reservoir adopt underground type reinforced concrete structure, boring aeration pipe to be arranged on bottom of pond.
Further, first hydrolysis acidification pool and the second hydrolysis acidification pool include submersible agitator, reflux pump, chemical industry
Centrifugal pump and hydroformylation fibre synthetic fibre soft-filler, the first hydrolysis acidification pool and the second hydrolysis acidification pool adopt semi-underground type armored concrete
Structure, is hung with hydroformylation fibre synthetic fibre flexible filler in pond, and submersible agitator is arranged on bottom of pond portion.
Further, the UASB anaerobic reation pools adopt concrete masonry units, and unit volume load is 4～15kgCOD/
m3·d.
Further, an anoxic biological contact oxidation pond is provided with the wastewater inlet end of the biological contact oxidation pond,
Waste water is first passed through after anoxic biological contact oxidation pond is processed and is flowed in biological contact oxidation pond again, the biological contact oxidation pond
Sludge concentration is 2500mg/L～5000mg/L, 0.5～1kgBOD of sludge loading5/(m3Filler d), available depth 5m.
Further, the preliminary sedimentation tank and second pond are half ground type reinforced concrete structure, and bottom of pond is provided with scraping and sucking machine
And sludge pump.
Further, the sludge reflux pond includes that sludge circulation pump and sludge pump, the sludge dehydration device are folded spiral shell
Formula sludge dewatering equipment, plate and frame sludge dewatering equipment or belt filter press etc..
Further, cooling tower is additionally provided between the preliminary sedimentation tank and the second hydrolysis acidification pool.
A kind of sub-prime shunts treatment method of printing and dying wastewater, shunts printing and dyeing wastewater treatment system, its feature using above sub-prime
It is to comprise the steps of：
(S1) high-concentration waste water is entered in the first grid canal by high head gravity flow, intercepts the crude fibre in high-concentration waste water and big
Grain material；
(S2) high-concentration waste water in previous step is from flowing in the first regulating reservoir, using blower fan and boring aeration pipe to the
Air is blown in one regulating reservoir, and pre-exposure gas disposal is carried out to high-concentration waste water, the partial vulcanization thing in stripping high-concentration waste water；With
When the first acid solution storage tank to the first regulating reservoir add acid solution, using air agitation, water quality is carried out to high-concentration waste water and the water yield is equal
Change is processed；Moreover, the first hydrolysis acidification pool is back to the high-concentration waste water of the first regulating reservoir and adds high-concentration waste water to carry out with new
Mixing, controls the pH value of new high-concentration waste water, reduces acid solution consumption, the first hydrolysis acidification pool return of waste water than control 50%～
150%；High-concentration waste water 6～12h of hydraulic detention time in the first regulating reservoir；
(S3) high-concentration waste water in previous step is evacuated in the first hydrolysis acidification pool using chemical centrifugal pump, diving is stirred
Mix device to be stirred waste water in pond, in waste water, the organic matter of indissoluble is decomposed into dissolved organic matter, macromolecular substances are resolved into
Small-molecule substance；UASB anaerobic reation pools are back in the first hydrolysis acidification pool and are mixed with the waste water for newly adding, and control wastewater pH
Value, UASB anaerobic reation pools return of waste water is than controlling 50%～200%；High-concentration waste water waterpower in the first hydrolysis acidification pool
12～20h of the time of staying；
(S4) waste water in previous step is evacuated to by UASB anaerobic reation pools using elevator pump, using the micro- life of anaerobism in pond
Thing carries out biochemical treatment, and the organic matter in waste water is decomposed, UASB anaerobic reation pool 1～3d of hydraulic detention time, surface
Hydraulic load is controlled in 0.1～2.0m3/(m2·h)；
(S5) waste water in previous step is entered in the second regulating reservoir by high head gravity flow, separates thick fibre with through the second grid canal
The comprehensive wastewater mixing of peacekeeping large particulate matter, is blown into air using blower fan and boring aeration pipe, into the second regulating reservoir to comprehensive
Closing waste water carries out pre-exposure gas disposal, the partial vulcanization thing in stripping comprehensive wastewater；Second acid solution storage tank is to the second regulating reservoir simultaneously
Acid solution is added, and using air agitation, water quality is carried out to comprehensive wastewater and water yield homogenizing is processed；Comprehensive wastewater is in the second regulating reservoir
8～12h of hydraulic detention time；
(S6) waste water in previous step is evacuated to mixing pit, the sewage treatment drug in medicament storage tank and adjuvant storage tank and
Auxiliary flocculant PAM is added in mixing pit and is uniformly dispersed, comprehensive wastewater 3～10min of the time of staying in the mixing pit；
(S7) waste water in previous step flows into preliminary sedimentation tank certainly, the suspended state and colloidal state organic matter in comprehensive wastewater
React with sewage treatment drug and auxiliary flocculant PAM, separate out and form flocculent deposit, the part coloring matter in waste water
It is divested, separates with waste water；2～4h of retention time of sewage, 0.8～1m of surface loading3/(m2·h)；
(S8) the waste water supernatant liquor in previous step proceeds hydrolysis acidification anti-from flowing in the second hydrolysis acidification pool
Should；The time of staying of the waste water in the second hydrolysis acidification pool is 12～20h；
(S9) from flowing in biological contact oxidation pond, air blast is blown into air into pond to the waste water in previous step, utilizes
Organic matter in waste water is carried out oxidation Decomposition by aerobic microbiological, and the time of staying 15 of the waste water in biological contact oxidation pond～
24h；
(S10) waste water in previous step carries out mud-water separation, supernatant qualified discharge, sludge from flowing in second pond
Sludge reflux pond is imported, partial sludge is back in the second hydrolysis acidification pool and biological contact oxidation pond, the second hydrolysis acidification pool
With the sludge that itself produces in biological contact oxidation pond also in interior circulation, and waste water is processed using the microorganism for carrying,
The sludge accumulation that preliminary sedimentation tank and the second hydrolysis acidification pool are produced is interior after sludge dehydration device processed to sludge concentration tank,
Final outward transport landfill is burned, second pond 0.6～0.8m of surface loading3/(m2H), weir load is less than 1.7L/m s.
Further, the water yield ratio of high-concentration waste water and comprehensive wastewater is 1: 3.
The invention has the beneficial effects as follows：
High-concentration waste water enters the first regulating reservoir through the first grid canal after leaching the large particulate matters such as crude fibre.First
In regulating reservoir, acid solution is added to carry out pH value regulation so as to reach suitable acid-base value, be then transferred into the first hydrolysis acidification pool
Interior.Macromolecular substances are resolved into small-molecule substance by the first hydrolysis acidification pool, improve biodegradability so that after sewage is more suitable for
Continuous process.First hydrolysis acidification pool water outlet enters UASB anaerobic reation pools, special domestication in UASB anaerobic reation pools
After removing the anaerobic bacteria of PVA, CMC, PVA, the CMC and other organic matters that preferably can degrade in dyeing waste water are conducive to follow-up
PROCESS FOR TREATMENT.The sewage for entering UASB anaerobic reation pools enters back into the second regulating reservoir through process, mixed with other comprehensive wastewaters
Close, so as to reduce the concentration of overall sewage.
Waste water in second regulating reservoir, adds acid solution to adjust pH value so as to reach suitable acid-base value.Then through being lifted
Pump be promoted to mixing pit add composite drug and PAM will the SS in sewage and part coloring matter heavy through physical reaction and flocculation
Form sediment, remove in preliminary sedimentation tank most of.The supernatant of preliminary sedimentation tank enters the second hydrolysis acidification pool, and macromolecular substances are resolved into little point
Sub- material, improves biodegradability.Consider that summer water temperature is higher, increase cooling between preliminary sedimentation tank and the second hydrolysis acidification pool
Tower, it is ensured that subordinate's water temperature controls, within 40 DEG C, not affecting the microorganism in follow-up biochemical system.Second hydrolysis acidification pool
Water outlet is introduced into anoxic biological contact chamber and carries out aerobic treatment subsequently into biological contact oxidation pond.In anoxic biological
The ammonia nitrogen in waste water is removed in pond, and in biological contact oxidation pond, there is the activated sludge for dyeing waste water domestication the inside, greatly
Partial solubility COD pollutants are removed in pond.Biological contact oxidation pond water outlet enters second pond, and secondary clarifier effluent is monitored
Discharge after up to standard.
The sludge of second pond is back to the second hydrolysis acidification pool and biological through a sludge reflux pond part by sludge pump
Oxidation pond, another part excess sludge are delivered to sludge concentration tank by sludge pump.Preliminary sedimentation tank and the first hydrolysis acidification pool, the second water
The sludge that solution acidification pool is produced also is delivered to sludge concentration tank through sludge pump, and the sludge in sludge concentration tank is delivered to sludge dewatering
Processed is carried out in machine.
System according to the present invention is first pre-processed to the waste water of high concentration, and after pretreatment, waste water is comprehensively useless at other
Water is handled together, sub-prime triage operator, can be reduced system Construction expense and operating cost, and be disclosure satisfy that wastewater treatment is required.
Description of the drawings
Fig. 1 is the structural representation of printing and dyeing wastewater treatment system of the present invention.
Specific embodiment
In order that the advantage of the purpose of the present invention and technical scheme becomes more apparent, below in conjunction with accompanying drawing and example, right
The present invention is further elaborated.
As shown in Figure 1, a kind of sub-prime shunts printing and dyeing wastewater treatment system, it is characterised in that including adopting waste pipe successively
Second grid canal 6 of 20 connections, the second regulating reservoir 7, mixing pit 8, preliminary sedimentation tank 9, the second hydrolysis acidification pool 10, bio-contact oxidation
Pond 11 and second pond 12, system are also included successively using the first grid canal 1 of the connection of waste pipe 20, the first regulating reservoir 2, the first water
Connected by waste pipe 20 between solution acidification pool 3 and UASB anaerobic reation pools 4 and UASB anaerobic reation pools 4 and the second regulating reservoir 7,
First acid solution storage tank 5 is connected with first regulating reservoir 2 by chemical feed pipe 21, and the second acid solution storage tank 16 is by chemical feed pipe 21 and institute
State the second regulating reservoir 7 to connect, medicament storage tank 18 and adjuvant storage tank 19 are connected with the mixing pit 8 by chemical feed pipe 21 respectively, drum
Blower fan 17 is connected with the biological contact oxidation pond 11 by air hose 22, and high-concentration waste water first passes through UASB anaerobic reation pools 4
Converge with the comprehensive wastewater for flowing into the second regulating reservoir 7 after process and process through biological contact oxidation pond 11 final from second pond 12
Realize that qualified discharge, the sludge in the second pond 12 are flowed to sludge reflux pond 13 and sludge condensation successively by sludge pipe 23 in place
In pond 14, outward transport landfill is finally realized through 15 processed of sludge dehydration device or burned, in the UASB anaerobic reation pools 4
Effluent part can be back to the effluent part in the first hydrolysis acidification pool 3, in first hydrolysis acidification pool 3 by waste pipe 20
Can be back in the first regulating reservoir 2 by waste pipe 20, the partial sludge in the sludge reflux pond 13 is by sludge pipe 23 times
Flow in the second hydrolysis acidification pool 10 and biological contact oxidation pond 11, second hydrolysis acidification pool 10 and biological contact oxidation pond
Sludge in 11 carries out internal circulation flow, the sludge in the preliminary sedimentation tank 9 and the second hydrolysis acidification pool 10 also by sludge pipe 23
Flowed Dao sludge concentration tank 14 in by sludge pipe 23.First regulating reservoir 2 and the second regulating reservoir 7 include that elevator pump, perforation expose
Tracheae and blower fan, the first regulating reservoir 2 and the second regulating reservoir 7 adopt underground type reinforced concrete structure, boring aeration pipe to be arranged on
Bottom of pond.First hydrolysis acidification pool 3 and the second hydrolysis acidification pool 10 include submersible agitator, reflux pump, chemical centrifugal pump and
Hydroformylation fibre synthetic fibre soft-filler, the first hydrolysis acidification pool 3 and the second hydrolysis acidification pool 10 adopt semi-underground type reinforced concrete structure,
Hydroformylation fibre synthetic fibre flexible filler is hung with pond, and submersible agitator is arranged on bottom of pond portion.The UASB anaerobic reactions adopt coagulation
Soil is built by laying bricks or stones, and unit volume load is 4～15kgCOD/m3·d.It is provided with the wastewater inlet end of the biological contact oxidation pond 11
One anoxic biological contact oxidation pond, waste water are first passed through after anoxic biological contact oxidation pond is processed and flow into biological contact oxidation pond again
In 11, the sludge concentration of the biological contact oxidation pond 11 is 2500mg/L～5000mg/L, 0.5～1kgBOD of sludge loading5/
m3Filler d, available depth 5m.The preliminary sedimentation tank 9 and second pond 12 are half ground type reinforced concrete structure, and bottom of pond is provided with scrapes
Suction dredge and sludge pump.The sludge reflux pond 13 includes that agitator and sludge pump, the sludge dehydration device 15 are folded spiral shell formula
Sludge dewatering equipment or plate and frame sludge dewatering equipment or belt filter press etc..In the preliminary sedimentation tank 9 and the second hydrolysis acidification pool
Cooling tower 24 is additionally provided between 10.
A kind of sub-prime shunts treatment method of printing and dying wastewater, shunts printing and dyeing wastewater treatment system, bag using one of the above sub-prime
Contain following steps：
(S1) high-concentration waste water is entered in the first grid canal 1 by high head gravity flow, intercepts crude fibre in high-concentration waste water and big
Particulate matter；
(S2) high-concentration waste water in previous step is from flowing in the first regulating reservoir 2, using blower fan and boring aeration pipe to
Air is blown in first regulating reservoir 2, and pre-exposure gas disposal, the partial vulcanization in stripping high-concentration waste water is carried out to high-concentration waste water
Thing；Simultaneously the first acid solution storage tank 5 adds acid solution to the first regulating reservoir 2, using air agitation, high-concentration waste water is carried out water quality and
The process of water yield homogenizing；Moreover, the first hydrolysis acidification pool 3 is back to the high-concentration waste water of the first regulating reservoir 2 and adds high concentration with new
Waste water is mixed, and controls the pH value of new high-concentration waste water, reduces acid solution consumption, and 3 return of waste water of the first hydrolysis acidification pool is than control
Make 50%～150%；High-concentration waste water 6～12h of hydraulic detention time in the first regulating reservoir 2；
(S3) high-concentration waste water in previous step is evacuated in the first hydrolysis acidification pool 3 using chemical centrifugal pump, is dived under water
Agitator is stirred to waste water in pond, and in waste water, the organic matter of indissoluble is decomposed into dissolved organic matter, and macromolecular substances decompose
Into small-molecule substance；UASB anaerobic reation pools 4 are back in the first hydrolysis acidification pool 3 and are mixed with the waste water for newly adding, and control is useless
Water pH value, 4 return of waste water of UASB anaerobic reation pools is than controlling 50%～200%；High-concentration waste water is in the first hydrolysis acidification pool 3
Middle 12～20h of hydraulic detention time；
(S4) waste water in previous step is evacuated to by UASB anaerobic reation pools 4 using elevator pump, micro- using the anaerobism in pond
Biology carries out biochemical treatment, and the organic matter in waste water is decomposed, 4 1～3d of hydraulic detention time of UASB anaerobic reation pools, table
Face hydraulic load is controlled in 0.1～2.0m3/m2·h；
(S5) waste water in previous step is entered in the second regulating reservoir 7 by high head gravity flow, and is separated slightly through the second grid canal 6
The comprehensive wastewater mixing of fiber and large particulate matter, is blown into air using blower fan and boring aeration pipe into the second regulating reservoir 7, right
Comprehensive wastewater carries out pre-exposure gas disposal, the partial vulcanization thing in stripping comprehensive wastewater；Second acid solution storage tank 16 is adjusted to second simultaneously
Section pond 7 adds acid solution, using air agitation, carries out water quality to comprehensive wastewater and water yield homogenizing is processed；Comprehensive wastewater is adjusted second
8～12h of hydraulic detention time in section pond 7；
(S6) waste water in previous step is evacuated to mixing pit 8, the sewage disposal in medicament storage tank 18 and adjuvant storage tank 19
Medicament and auxiliary flocculant PAM are added in mixing pit 8 and are uniformly dispersed, comprehensive wastewater in the mixing pit 8 time of staying 3～
10min；
(S7) waste water in previous step is organic from preliminary sedimentation tank 9, the suspended state and colloidal state in comprehensive wastewater is flowed into
Thing is reacted with sewage treatment drug and auxiliary flocculant PAM, is separated out and is formed flocculent deposit, the part coloring matter in waste water
Also it is divested, separates with waste water；2～4h of retention time of sewage, 0.8～1m of surface loading3/m2·h；
(S8) the waste water supernatant liquor in previous step proceeds hydrolysis acidification from flowing in the second hydrolysis acidification pool 10
Reaction；The time of staying of the waste water in the second hydrolysis acidification pool 10 is 12～20h；
(S9) from flowing in biological contact oxidation pond 11, air blast 17 is blown into air into pond to the waste water in previous step,
The organic matter in waste water is carried out oxidation Decomposition, the time of staying of the waste water in biological contact oxidation pond 11 using aerobic microbiological
15～24h；
(S10) waste water in previous step carries out mud-water separation, standard emission of clear, sludge from flowing in second pond 12
Sludge reflux pond 13 is imported, partial sludge is back in the second hydrolysis acidification pool 10 and biological contact oxidation pond 11, the second hydrolysis
The sludge itself produced in acidification pool 10 and biological contact oxidation pond 11 is also in interior circulation, and utilizes the microorganism for carrying to waste water
Processed, the sludge accumulation that preliminary sedimentation tank 9 and the second hydrolysis acidification pool 10 are produced is in sludge concentration tank 14 through sludge dewatering
After 15 processed of equipment, final outward transport landfill is burned, 12 0.6～0.8m of surface loading of second pond3/m2H, weir load
It is less than 1.7L/m s.
Disposal effect of dyeing wastewater using the system is as follows：
High-concentration waste water influent COD cr：15000mg/L；
The ratio of the water yield of high-concentration waste water and comprehensive wastewater is substantially：1∶3
With COD after the high-concentration waste water and comprehensive wastewater synthesis for having processedcr：2124.38mg/L
Operating cost can be reduced after process above process, it is ensured that final outflow water emission compliance.
Claims (10)
1. a kind of sub-prime shunts printing and dyeing wastewater treatment system, it is characterised in that including connected using waste pipe (20) successively second
Grid canal (6), the second regulating reservoir (7), mixing pit (8), preliminary sedimentation tank (9), the second hydrolysis acidification pool (10), biological contact oxidation pond
(11) and second pond (12), system also includes the first grid canal (1), the first regulating reservoir for connecting successively using waste pipe (20)
(2), the first hydrolysis acidification pool (3) and UASB anaerobic reation pools (4) and UASB anaerobic reation pools (4) and the second regulating reservoir (7) it
Between connected by waste pipe (20), the first acid solution storage tank (5) is connected with the first regulating reservoir (2) by chemical feed pipe (21), the
Two acid solution storage tanks (16) are connected with the second regulating reservoir (7) by chemical feed pipe (21), medicament storage tank (18) and adjuvant storage tank
(19) it is connected with the mixing pit (8) by chemical feed pipe (21) respectively, air blast (17) is by air hose (22) and the biology
Contact-oxidation pool (11) connect, high-concentration waste water first pass through UASB anaerobic reation pools (4) process after with flow into the second regulating reservoir (7)
Comprehensive wastewater converge and through biological contact oxidation pond (11) process finally from from second pond (12), realize qualified discharge, described
Sludge in second pond (12) is flowed in sludge reflux pond (13) and sludge concentration tank (14), through dirt successively by sludge pipe (23)
Mud dehydration device (15) processed finally realizes outward transport landfill or burns that the part in UASB anaerobic reation pools (4) is given up
Water can be back in the first hydrolysis acidification pool (3) by waste pipe (20), the effluent part in the first hydrolysis acidification pool (3)
Can be back in the first regulating reservoir (2) by waste pipe (20), the partial sludge in sludge reflux pond (13) passes through sludge
It is interior that pipe (23) is back to the second hydrolysis acidification pool (10) and biological contact oxidation pond (11), the second hydrolysis acidification pool (10) and
Sludge in biological contact oxidation pond (11) carries out internal circulation flow, preliminary sedimentation tank (9) and second also by sludge pipe (23)
Sludge in hydrolysis acidification pool (10) is by sludge pipe (23) stream in sludge concentration tank (14).
2. a kind of sub-prime according to claim 1 shunts printing and dyeing wastewater treatment system, it is characterised in that：Described first is adjusted
Pond (2) and the second regulating reservoir (7) include elevator pump, boring aeration pipe and blower fan, the first regulating reservoir (2) and the second regulating reservoir (7)
Using underground type reinforced concrete structure, boring aeration pipe is arranged on bottom of pond.
3. a kind of sub-prime according to claim 1 shunts printing and dyeing wastewater treatment system, it is characterised in that：First hydrolysis
Acidification pool (3) and the second hydrolysis acidification pool (10) include submersible agitator, reflux pump, chemical centrifugal pump and hydroformylation, and fine synthetic fibre is soft fills out
Material, the first hydrolysis acidification pool (3) and the second hydrolysis acidification pool (10) adopt semi-underground type reinforced concrete structure, hang in pond
There are hydroformylation fibre synthetic fibre flexible filler, submersible agitator to be arranged on bottom of pond portion.
4. a kind of sub-prime according to claim 1 shunts printing and dyeing wastewater treatment system, it is characterised in that：The UASB anaerobism
Reaction tank (4) adopts concrete masonry units, and unit volume load is 4～15kgCOD/m3·d.
5. a kind of sub-prime according to claim 1 shunts printing and dyeing wastewater treatment system, it is characterised in that：Connect in the biology
The wastewater inlet end of tactile oxidation pond (11) is provided with an anoxic biological contact oxidation pond, and waste water first passes through anoxic bio-contact oxidation
Pond is flowed into after processing in biological contact oxidation pond (11) again, and the sludge concentration of biological contact oxidation pond (11) is 2500mg/L
～5000mg/L, 0.5～1kgBOD of sludge loading5/(m3Filler d), available depth 5m.
6. a kind of sub-prime according to claim 1 shunts printing and dyeing wastewater treatment system, it is characterised in that：The preliminary sedimentation tank
(9) and second pond (12) is half ground type reinforced concrete structure, bottom of pond is provided with suction mud scraper and sludge pump.
7. a kind of sub-prime according to claim 1 shunts printing and dyeing wastewater treatment system, it is characterised in that：The sludge reflux
Pond (13) includes sludge circulation pump and sludge pump；Described sludge dehydration device (15) are Stacked sludge dewatering machine, plate and frame dirt
Mud dewaterer or belt filter press.
8. a kind of sub-prime according to claim 1 shunts printing and dyeing wastewater treatment system, it is characterised in that：In the preliminary sedimentation tank
(9) cooling tower (24) is additionally provided between and the second hydrolysis acidification pool (10).
9. a kind of sub-prime shunts treatment method of printing and dying wastewater, using a kind of sub-prime described in any one in above right 1～8 point
Stream printing and dyeing wastewater treatment system, it is characterised in that comprise the steps of：
(S1) high-concentration waste water is entered in the first grid canal (1) by high head gravity flow, intercepts the crude fibre in high-concentration waste water and big
Grain material；
(S2) high-concentration waste water in previous step is from flowing in the first regulating reservoir (2), using blower fan and boring aeration pipe to the
Air is blown in one regulating reservoir (2), and pre-exposure gas disposal, the partial vulcanization in stripping high-concentration waste water is carried out to high-concentration waste water
Thing；First acid solution storage tank (5) adds acid solution to the first regulating reservoir (2) simultaneously, using air agitation, enters water-filling to high-concentration waste water
Matter and water yield homogenizing are processed；Moreover, the first hydrolysis acidification pool (3) is back to the high-concentration waste water of the first regulating reservoir (2) and is added with new
Enter high-concentration waste water to be mixed, control the pH value of new high-concentration waste water, reduce acid solution consumption, the first hydrolysis acidification pool (3) gives up
Water reflux ratio is controlled 50%～150%；High-concentration waste water 6～12h of hydraulic detention time in the first regulating reservoir (2)；
(S3) high-concentration waste water in previous step is evacuated in the first hydrolysis acidification pool (3) using chemical centrifugal pump, diving is stirred
Mix device to be stirred waste water in pond, in waste water, the organic matter of indissoluble is decomposed into dissolved organic matter, macromolecular substances are resolved into
Small-molecule substance；UASB anaerobic reation pools (4) are back in the first hydrolysis acidification pool (3) and are mixed with the waste water for newly adding, and are controlled
PH value of waste water, UASB anaerobic reation pools (4) return of waste water is than controlling 50%～200%；High-concentration waste water is in the first hydrolysis acid
Change 12～20h of hydraulic detention time in pond (3)；
(S4) waste water in previous step is evacuated to by UASB anaerobic reation pools (4) using elevator pump, using the micro- life of anaerobism in pond
Thing carries out biochemical treatment, and the organic matter in waste water is decomposed, UASB anaerobic reation pools (4) 1～3d of hydraulic detention time, table
Face hydraulic load is controlled in 0.1～2.0m3/(m2.h)；
(S5) waste water in previous step is entered in the second regulating reservoir (7) by high head gravity flow, and is separated through the second grid canal (6)
The comprehensive wastewater mixing of crude fibre and large particulate matter, is blown into sky using blower fan and boring aeration pipe into the second regulating reservoir (7)
Gas, carries out pre-exposure gas disposal to comprehensive wastewater, the partial vulcanization thing in stripping comprehensive wastewater；Simultaneously the second acid solution storage tank (16) to
Second regulating reservoir (7) adds acid solution, using air agitation, carries out water quality to comprehensive wastewater and water yield homogenizing is processed；Comprehensive wastewater
In the interior 8～12h of hydraulic detention time of the second regulating reservoir (7)；
(S6) waste water in previous step is evacuated to mixing pit (8), at the sewage in medicament storage tank (18) and adjuvant storage tank (19)
Manage medicament and auxiliary flocculant PAM is added in mixing pit (8) and is uniformly dispersed, comprehensive wastewater is in the interior stop of mixing pit (8)
Between 3～10min；
(S7) waste water in previous step flows into preliminary sedimentation tank (9) certainly, the suspended state and colloidal state organic matter in comprehensive wastewater
React with sewage treatment drug and auxiliary flocculant PAM, separate out and form flocculent deposit, the part coloring matter in waste water
It is divested, separates with waste water；2～4h of retention time of sewage, 0.8～1m of surface loading3/(m2·h)；
(S8) the waste water supernatant liquor in previous step proceeds hydrolysis acidification anti-from flowing in the second hydrolysis acidification pool (10)
Should；The time of staying of the waste water in the second hydrolysis acidification pool (10) is 12～20h；
(S9) from flowing in biological contact oxidation pond (11), air blast (17) is blown into air into pond to the waste water in previous step,
The organic matter in waste water is carried out oxidation Decomposition using aerobic microbiological, during stop of the waste water in biological contact oxidation pond (11)
Between 15～24h；
(S10) waste water in previous step carries out mud-water separation, supernatant qualified discharge, sludge from flowing in second pond (12)
Sludge reflux pond (13) is imported, partial sludge is back in the second hydrolysis acidification pool (10) and biological contact oxidation pond (11), the
The sludge that itself produces in two hydrolysis acidification pools (10) and biological contact oxidation pond (11) is also in interior circulation and micro- using carried
Biology is processed to waste water, and the sludge accumulation that preliminary sedimentation tank (9) and the second hydrolysis acidification pool (10) are produced is to sludge concentration tank
(14) in through sludge dehydration device (15) processed after, final outward transport landfill is burned, second pond (12) surface loading 0.6
～0.8m3/(m2H), weir load is less than 1.7L/m s.
10. a kind of sub-prime according to claim 9 shunts treatment method of printing and dying wastewater, it is characterised in that：High-concentration waste water
Water yield ratio with comprehensive wastewater is 1: 3.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108558140A (en) * | 2018-05-08 | 2018-09-21 | 杭州富瑞司纺织有限公司 | A kind of dyeing fabric sewage water treatment method |
| CN109133543A (en) * | 2018-11-02 | 2019-01-04 | 石狮市展耀纺织科技有限公司 | A kind of printing and dyeing pre-treatment waste water treatment system and its treatment process |
| CN109205946A (en) * | 2018-10-17 | 2019-01-15 | 湖北省鼎城都市环保科技有限公司 | Wash water recovery and processing system |
| CN109231671A (en) * | 2018-10-10 | 2019-01-18 | 常州方圆制药有限公司 | A kind of method of multistage anaerobic processing Etimicin Sulfate production waste water |
| CN110902964A (en) * | 2019-12-11 | 2020-03-24 | 成都泰润环境工程有限公司 | Ramie wastewater treatment process and treatment system |
| CN112624523A (en) * | 2020-12-30 | 2021-04-09 | 华夏碧水环保科技有限公司北京分公司 | Treatment method of textile printing and dyeing wastewater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108558140A (en) * | 2018-05-08 | 2018-09-21 | 杭州富瑞司纺织有限公司 | A kind of dyeing fabric sewage water treatment method |
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| CN109133543A (en) * | 2018-11-02 | 2019-01-04 | 石狮市展耀纺织科技有限公司 | A kind of printing and dyeing pre-treatment waste water treatment system and its treatment process |
| CN110902964A (en) * | 2019-12-11 | 2020-03-24 | 成都泰润环境工程有限公司 | Ramie wastewater treatment process and treatment system |
| CN112624523A (en) * | 2020-12-30 | 2021-04-09 | 华夏碧水环保科技有限公司北京分公司 | Treatment method of textile printing and dyeing wastewater |
| CN112624523B (en) * | 2020-12-30 | 2021-08-03 | 华夏碧水环保科技有限公司北京分公司 | Treatment method of textile printing and dyeing wastewater |
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