CN108083483A - A kind of papermaking or the decoloration treatment method of dyeing waste water - Google Patents
A kind of papermaking or the decoloration treatment method of dyeing waste water Download PDFInfo
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- CN108083483A CN108083483A CN201611019505.8A CN201611019505A CN108083483A CN 108083483 A CN108083483 A CN 108083483A CN 201611019505 A CN201611019505 A CN 201611019505A CN 108083483 A CN108083483 A CN 108083483A
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose 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
- 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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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- Engineering & Computer Science (AREA)
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- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to Industrial Wastewater Treatments, and in particular to the decoloration treatment method of a kind of papermaking or dyeing waste water.The solution of the present invention comprises the following steps：(1) pre-process to the PH ﹥ 9 of waste water；(2) flocculation sediment：It adds in flocculant and flocculation sediment is carried out to pretreated waste water, the addition of flocculant and the ratio of wastewater quality are 1：1000~100000, the separation of solid and liquid after flocculation is stablized；(3) decolourize：After separation of solid and liquid, to supernatant decoloring reaction；(4) flocculation sediment again：Flocculant is added after decoloration, flocculation sediment is carried out to pretreated waste water, flocculated to solution, the addition of flocculant and the ratio of wastewater quality are 1：1000~100000, the separation of solid and liquid after flocculation is stablized；(5) water quality detection is carried out to separated liquid, until colourity water quality up to standard.The method good decolorizing effect of the present invention, and it is easy to operate, it is at low cost.
Description
Technical field
The present invention relates to Industrial Wastewater Treatments, and in particular to the decoloration treatment method of a kind of papermaking or dyeing waste water.
Background technology
With global industry and the development of urbanization, the mankind are to natural resources exploitation and utilize in scale and intensity not
Disconnected to expand, the three industrial wastes of generation are more and more, and this three industrial wastes have seriously affected people’s lives environment, therefore, such as
The problem of what curing "three waste" protection people’s lives environment is always a puzzlement world.
Two production processes of slurrying and copy paper of paper waste in paper industry production.Slurrying is that plant is former
Fiber separation in material comes out, and slurry is made, then through bleaching；Copy paper is pulp dilution, shaping, squeezing, drying, and paper is made
.This two techniques all discharge a large amount of waste water.The waste water that slurrying generates, pollution are the most serious.Waste water is discharged during pulp washing in dark brown
Color is known as Heisui River, and pollutant concentration is very high in Heisui River, and BOD is up to 5-40g/L, contains a large amount of fibers, inorganic salts and pigment.Drift
The waste water of white process discharge also contains substantial amounts of acid-base material.The waste water of paper machine discharge, is known as plain boiled water, wherein containing a large amount of fine
The filler and sizing material that peacekeeping is added in process of production.The processing of paper-making industrial waste water, which should focus on, improves cycling use of water rate, subtracts
Few water consumption and wastewater discharge, while should also try to explore various reliable, economy and useful money in waste water can be made full use of
The processing method in source.Such as fibroid solid matter in the recyclable plain boiled water of floatation, up to 95%, primary water can return the rate of recovery
With；Sodium hydroxid, vulcanized sodium, sodium sulphate and other sodium salts combined with organic matter in the recyclable Heisui River of combustion method.Neutralisation
Adjust pH value of waste water；Coagulating sedimentation or floatation can remove suspended solid in waste water；Chemical precipitation method can decolourize；Biological treatment
BOD is can remove, it is more effective to brown paper waste water；Wet oxidation process processing sulfite paper pulp waste water is more successful.In addition, both at home and abroad
Also have using processing methods such as reverse osmosis, hyperfiltration, electrodialysis.
Dyeing waste water is the waste water of printing and dyeing mill's discharge based on processing cotton, fiber crops, chemical fibre and its blending product.Printing and dyeing are useless
Water water is larger, per 1 ton of dyeing and printing process, 100~200 tons of textile water consumption, wherein 80~90% become waste water.Textile printing and dyeing is given up
Water has the characteristics that water is big, organic pollution content is high, alkalescence is big, change of water quality is big, belongs to one of intractable industrial wastewater,
Contain dyestuff, slurry, auxiliary agent, finish, soda acid, fiber impurity, sand class substance, inorganic salts etc. in waste water.Common administering method
There are recycling and harmless treatment.
But not only cost is higher for the processing method of existing papermaking and printing and dyeing industrial waste water, and all there are one most to make us
The problem of headache --- it cannot thoroughly decolourize, treated, and waste water still carries color.
The content of the invention
The present invention provides a kind of papermaking or print to solve the problems, such as that current papermaking and printing and dyeing industrial waste water can not thoroughly decolourize
Contaminate the decoloration treatment method of waste water.
The scheme of the invention is comprise the following steps：
(1) pre-process：NaOH, Na are added in into waste water2CO3、Ca(OH)2One or more, adjust the PH ﹥ 9 of waste water；
(2) flocculation sediment：Then the one or more in Sodium Polyacrylate, poly bis cyanamide, PAM, polyethylene oxide are added in
Combination flocculant carries out pretreated waste water flocculation sediment, and the addition of flocculant and the ratio of wastewater quality are 1：1000
~100000, the separation of solid and liquid after flocculation is stablized；
(3) decolourize：After separation of solid and liquid, Al is added in into supernatant2(SO4)3、AlCl3、FeSO4、NaNO2In one kind or
A variety of decolorising agents carry out decoloring reaction；
(4) flocculation sediment again：One kind in Sodium Polyacrylate, poly bis cyanamide, PAM, polyethylene oxide is added after decoloration
Or multiple combinations flocculant carries out flocculation sediment to pretreated waste water, flocculates to solution, the addition of flocculant with
The ratio of wastewater quality is 1：1000~100000, the separation of solid and liquid after flocculation is stablized；
(5) water quality detection, color standard are carried out to separated liquid：≤ 50mg/L if colourity is up to standard, then decolourizes to complete；
As colourity is not up to standard, and pH value ﹤ 6, then after adjusting pH value by step (1), step (3) is repeated, (4) are decolourized and flocculated,
PH value is made to reach 6~8, colourity reaches water quality up to standard；As colourity is not up to standard, and pH value ﹥ 8, then repeat (3), (4) reach pH value
To 6~8, that is, reach colourity water quality up to standard；As colourity is not up to standard, and pH value is 6~8, then repeatedly step (3) until colourity reaches
Mark.
Another priority scheme of the present invention is that the PH that step (1) pretreatment adjusts waste water is 9.5~11.5.
Another priority scheme of the present invention is that the PH that step (1) pretreatment adjusts waste water is 10~14.
Another priority scheme of the present invention is that the PH that step (1) pretreatment adjusts waste water is 10.1~10.3.
Another priority scheme of the present invention is that the addition of step (2) flocculant and the ratio of wastewater quality are 1：5000
~50000.
Another priority scheme of the present invention is that the addition of step (2) flocculant and the ratio of wastewater quality are 1：10000
~30000.
Another priority scheme of the present invention is that the addition of step (2) flocculant and the ratio of wastewater quality are 1：15000
~20000.
Another priority scheme of the present invention is that the addition of step (4) flocculant and the ratio of wastewater quality are 1：5000
~50000.
Another priority scheme of the present invention is that the addition of step (2) flocculant and the ratio of wastewater quality are 1：10000
~30000.
Another priority scheme of the present invention is that the addition of step (2) flocculant and the ratio of wastewater quality are 1：15000
~20000.
Another priority scheme of the present invention is step (1) pretreatment：The PH ﹥ that sodium metasilicate adjusts waste water are added in into waste water
9；
Another priority scheme of the present invention is step (1) pretreatment：Sodium acid carbonate or ammonium hydroxide tune are added in into waste water
Save the PH ﹥ 10 of waste water；
Another priority scheme of the present invention is step (1) pretreatment：The PH that tertiary sodium phosphate adjusts waste water is added in into waste water
﹥ 10；
Another priority scheme of the present invention is step (2) flocculation sediment：Add in Sodium Polyacrylate, poly bis cyanamide, polycyclic oxygen
One or more combination flocculants of ethane carry out flocculation sediment to pretreated waste water；The ratio of addition and wastewater quality
For 1：1000~100000, the separation of solid and liquid after flocculation is stablized；
Another priority scheme of the present invention is that step (5) such as pH value ﹥ 8, and colourity is not up to standard, then adds in potassium bichromate, again
Sodium chromate, chrome alum chromalum, phosphotungstic acid, nitrous acid aluminium, aluminum sulfate (Al2(SO4)3), copper sulphate, ferric sulfate, ferrous sulfate, aluminum nitrate
(Al(NO3)3), ferric nitrate, alumina silicate (Al3(SiO3)3), aluminium sulfide (Al2S3), alchlor, cobaltous sulfate, cobalt nitrate, chlorination
Cobalt, ferric trichloride, alum, hydrazine aluminum sulfate potassium (Al2(SO4)3·K2SO4·nH2O), alum, aluminium iron sulfate, poly-
One or more of ferric sulfate, aluminium polychloride is closed to decolourize.
Another preferred embodiment of the present invention is step (3) Al2(SO4)3、AlCl3、FeSO4、NaNO2In one or more
When carrying out decoloring reaction, potassium bichromate or sodium dichromate are also added in simultaneously, and potassium bichromate or sodium dichromate can promote above-mentioned de-
The decoloration function of toner, greatly enhances decolorizing effect.Chrome alum chromalum, phosphotungstic acid, nitrous acid aluminium, aluminum sulfate (Al can also be added in2
(SO4)3), copper sulphate, ferric sulfate, ferrous sulfate, aluminum nitrate (Al (NO3)3), ferric nitrate, alumina silicate (Al3(SiO3)3), vulcanization
Aluminium (Al2S3), alchlor, cobaltous sulfate, cobalt nitrate, cobalt chloride, ferric trichloride, alum, hydrazine aluminum sulfate potassium (Al2
(SO4)3·K2SO4·nH2O), one or more of alum, aluminium iron sulfate, bodied ferric sulfate, aluminium polychloride progress
Collaboration decoloration.
The technique of the present invention has the following advantages：First, equipment operation is easy；Second, project investment is few；3rd, device
It is high to run treatment effeciency；4th, the features such as sewage disposal unit consumption is low, operating cost is low, the 5th, easy to operate, human cost is low,
6th, it solves the problems, such as to perplex papermaking and the decoloration for the treatment of of dyeing wastewater not to the utmost always.
Specific embodiment
Specific embodiments of the present invention presented below, to help the present invention, but protection scope of the present invention is further understood
It is not limited in these embodiments.
Embodiment 1
The sewage in Hunan city paper mill is mainly derived from the sewage discharged during shop production line production, Wastewater Pollutant
Mainly there are following several respects：SS、COD、BOD5, colourity.COD and BOD5Essentially from the lignin and hemicellulose of waste water；It is tiny
Fiber, inorganic filler etc. primarily form SS；Ink, organic pigment, dyestuff primarily form colourity and COD.Such sewage it is main
Feature is：Colourity is big and containing substantial amounts of organic pollution and suspended matter, if the directly outer row of these sewage not only pollutes environment
Also waste precious water resource.
The existing sewage treatment process in the paper mill：Its treatment process be a materialization air-flotation process technique, principle be
Under certain pressure (0.35~0.45Mpa), suitable air is sucked by ejector, is formed and satisfied in dissolving with recirculation water
With molten gas carrier, gather so decompression release through release and obtain substantial amounts of micro air bubble, measurement, granularity, stability are all most
Within good value.Bubble attaches to rapidly the impurity such as particle, oil emulsion, the fiber in water and the flco formed through coagulating, makes
Into flco state having a specific gravity smaller than that of water, and it is forced to bubble through the water column rapidly, so as to fulfill separation of solid and liquid.Slag is bubbled through the water column and is scraped
It walks, and separates water and filtered water tank is then entered by bottom perforated pipe, dissolved air water is made in water reflux in part, and clear water is then arranged by valve
Go out.But decoloration is not thorough, processing is incomplete.The technique for thus using the present invention instead.
The treatment process of the present embodiment is as follows：
(1) parameters of engineering design
1. sewage disposal water
Existing waste paper pulp-making production firecracker paper comprehensive wastewater 400m3/ d, COD content 8000-9000mg/L；SS contents
More than 2000mg/L；Colourity is big, difficult.
2. sewage disposal device handles import water quality parameter
Water inlet sewage quality：
CODcr：8200-10000mg/L
SS：2500-3000mg/L
Colourity：480-550 times
PH：4-6
3. sewage disposal device processing outlet water quality parameter
3.1 pretreatment effluent qualities：
CODcr：≤3000mg/L
SS：≤200mg/L
Colourity：≤ 250 times
PH：10-12
3.2 physicochemical techniques effluent qualities：
CODcr：≤1500mg/L
SS：≤100mg/L
Colourity：≤ 170 times
PH：7-9
3.3 2 materializing strategy Process for Effluent water quality：
CODcr：≤800mg/L
SS：≤30mg/L
Colourity：≤50mg/L
PH：6-9
3.4 final collection treatment process effluent qualities：
CODcr：≤120mg/L
SS：≤30mg/L
Colourity：≤50mg/L
PH：6-9
(2) design specification and principle
2.1 design specification
Design, manufacture, inspection and experiment of sewage disposal device etc. meet the requirement of the related codes and standards of country,
It is main to include with lower part (but not limited to)：
Electrical design is in accordance with National Standard of the People's Republic of China
《Code for fire protection design of buildings》GBJ16-87 (2001 editions)
Or the requirement of local Environmental Protection Agency：
(3) technological process
3.1 sewage treatment process principles
In following steps, A medicaments are NaOH, it is also possible to Na2CO3Or Ca (OH)2, B medicaments are that PAM, C medicament are polypropylene
Sour sodium, D medicaments are poly bis cyanamide, and E medicaments are Al2(SO4)3, it is also possible to AlCl3、FeSO4Or NaNO24。
3.1.1 the pretreatment of sewage
It is faintly acid waste water that sewage is discharged from paper machine room, and contains substantial amounts of suspended matter, ammonia nitrogen compound, phosphorous chemical combination
Object, solubility COD, BOD5.A medicaments are added in the sewage, the pH value of sewage is transferred to 9-11, goes to the part in water removal insoluble
Suspended solid, colloidal ion, phosphorus compound, organic matter and metal cation, while adjust carbonate hardness and acid-base value in water.
A medicaments are Ca (OH)2, the free acid in waste water can be effectively neutralized for wastewater in papermaking with waste paper processing；Neutralize waste water
In ackd salt；Hydroxide ion is provided, insoluble hydroxide precipitation is directly generated with metal ion reaction, remove big portion absolutely
Divide toxic metals cation；Meanwhile as acid water treatment agent, can effectively remove phosphate radical, sulfate radical and fluorine ion etc. it is cloudy from
Son.In addition, it in addition to coagulating sedimentation, deacidification, A medicaments make as coagulant with organic polymer coargulator collocation
With, also have good cohesion, to degrade solubility COD, promote insoluble ammonia nitrogen compound precipitation all have well imitate
Fruit.In order to be more convenient to operate, Ca (OH) is being used2When, calcium oxide can be used to be added directly into waste water to generate as raw material
Ca(OH)2。
3.1.2 the removal of suspended matter
To adding coagulant in sewage (or flocculant), the high polymer formed by coagulant poly-condensation and hydrolysis
Strong adsorption bridging action makes micelle be bonded by absorption.During Coagulation Process contains cohesion and two stages of flocculation, agglomerates rank
Section forms smaller particle, then by flocculating to form larger flco.Wadding particle shape into the process, can not only adsorb suspend
Grain, moreover it is possible to adsorb a part of bacterium and dissolving substance.Wadding grain can be separated from the water under certain deposition condition, settle.This
Scheme is generated a large amount of microbubbles by dissolved air flotation device, makes waste water using B medicaments, C medicaments, D medicaments as efficient flocculant
Middle suspended particulate forms floccule body and sticks with microbubble, so that floc density declines, and makes its floating by buoyancy, reaches
The purpose of separation of solid and liquid.
3.1.3 the depth removal of Colority of Sewage Water, COD, BOD
For organic molecule, since the active force between group is larger, the influence phase of molecule hydrolysis after water is dissolved in
To smaller, molecular structure is more stable, because, containing a large amount of hydrophilic radicals, ensure that its is preferable water-soluble in its strand,
Related functional group is such as introduced in flocculating agent molecule；Using the neutralization of its absorption surface charge, the charge in waste water is neutralized
And make the organic suspended matters elimination of colloid stability such as COD.Its requirement is that charged group enriches, and such as introduces various ammonium salts, carboxylic in the molecule
Hydrochlorate etc.：Line style organic polymer coargulator, using adsorption bridging principle, is greatly improved soluble organic in wastewater treatment
Object treatment effect.
This technology designing scheme for regenerated papermaking COD, BOD complicated component, and contains azo-compound organic pigment
Feature adds in the flocculants such as the related functional group organic polymer E medicaments for being conducive to COD removals, D medicaments, B medicaments, utilizes height
The principle of charge density effect, neutralizes the charge in waste water and organic colloid is made to take off steady degradation, and adsorbed and wadded a quilt with cotton by cationic PAM
It is solidifying, reach removal COD and decoloration purpose.
3.1.4 Solid state fermentation
It is mixed by the sludge that settlement separator, dissolved gas floatator are isolated with certain density flocculant in quiet, dynamic
After being sufficiently mixed in device, the minute solid particles coacervation in sludge isolates freedom into the larger cotton-shaped agglomerate of volume
Water, the sludge after flocculation are transported on the strainer of concentration gravity dehydration, and Free water is separated under gravity, are formed not
Then the sludge of flow regime is clamped in up and down between two guipures, by wedge-shaped precompressed zone, low-pressure area and higher-pressure region by it is small to
Under big extruding force, shearing force, sludge is progressively squeezed, to reach maximum mud, water separates, and eventually forms filter cake row
Go out outward transport processing.
3.2 specific steps
3..2..1 pre-process
The waste water that each production line of paper plant generates is pumped into even regulation pond through sewage pump, carries out homogeneous adjusting, homogeneous tune
Waste water after section is promoted through sewage pump, after A medicaments and medicament B flocculant coagulations is added in, into settlement separator, in sedimentation point
Abundant flocculation reaction is carried out from device, larger molecular organics, paper fiber are attached on alumina blossom particles and settle, so as to divide with waste water
From precipitation solid slag is discharged from separator bottom, and precipitation solid slag can be back to copy paper production, be carried out after can also being emitted into slurry pond
Outward transport is handled after filter-press dehydration；Supernatant enters from the overflow of settlement separator top to be handled in next step.
3..2..2 a materializing strategy
The pending waste water of materializing strategy regulating reservoir is pumped into vortex dissolved-air floatation machine through sewage pump, in air floatation machine inlet tube
Three tube mixers are accessed on road and are separately added into medicament C solution, medicament solution D, B medicaments, is fully chemically reacted, suspended
The removal of object is that coagulant (or flocculant) is added in into water, the high polymer formed by coagulant poly-condensation and hydrolysis
Strong adsorption bridging action makes micelle be bonded by absorption.During Coagulation Process contains cohesion and two stages of flocculation, agglomerates rank
Section forms smaller particle, then by flocculating to form larger flco.Wadding particle shape into the process, can not only adsorb suspend
Grain, moreover it is possible to adsorb a part of bacterium and dissolving substance.Wadding grain can be separated from the water under certain deposition condition, settle.This
Then scheme, is squeezed into dissolved gas floatator by elevator pump, carries out air supporting solid-liquid using flocculants such as medicament C, medicament D, medicament B
Separation, it is pending that air-flotation scum flows directly into sludge collecting pit, and air supporting clear liquid is prepared to enter into down one from decoloration regulating reservoir is flow to
Process carries out secondary materialization decolorization.
3..2..3 two materializing strategies
According to this technology designing scheme, air supporting water outlet SS and colourity have been lowered to less than 50, and most of water can be direct
Reuse, remainder water enter decoloration regulating reservoir, and after decoloration regulating reservoir carries out Air Exposure, the molten gas of advection is pumped to by promotion
Air floatation machine is being mixed into adding in organic polymer special decoloring agent E, flocculant D, flocculating agent B step by step before advection dissolved gas floatator
Reaction is closed, most of organic polymer pigment, organic soluble COD and medicament carry out coagulating in dissolved gas floatator, lead to
It is separated after crossing air supporting.So as to achieve the purpose that remove COD, BOD, reduce colourity.Pneumatically supported scum silica frost is exhausted directly to sludge receipts
Ji Chi processing, clear liquid is treated to handle in next step from surge tank is flowed into after air supporting.
3..2..4 Strong oxdiative end collection is handled
Waste water after secondary materialization air-flotation process, then using strong oxidizer (such as Cl2) carry out oxidation removal macromolecule have
Machine object, further to remove COD, BOD, ammonia nitrogen etc..
3.2.5 Solid state fermentation
Sedimentation separation solid-liquid separation waste residue, vortex dissolved-air floatation machine scum silica frost, the gravity flow of advection dissolved gas floatator scum silica frost are collected
To sludge collecting pit, focused on.
This programme using sludge pump by sludge in sludge collecting pit with being pumped to belt filter press sludge treating system, in order to
The dehydration property of sludge is improved, improves the property of filter cake, increases the permeability of material, materializing strategy need to be carried out to sludge, conveyed
Flocculant is added in into the sludge before filter press.
Sludge is uniformly sent into guipure through cloth bucket, and sludge is moved forwards with strainer, and free state water passes through under Gravitative Loads
Strainer flows into water receiving tank, and gravity dehydration could also say that highly concentrated section, and main function is the Free water sloughed in sludge, makes dirt
The mobility of mud reduces, to be pressed further by preparing.
Sludge mobility after gravity dehydration is almost lost, with moving forwards for belt filter press strainer, up and down
Strainer spacing gradually decreases, and material starts to be subject to light pressure, and as strainer is run, pressure gradually increases, the work of tapered region
With being to extend the gravity dehydration time, increase the extrusion stability of floc sedimentation, to prepare into pressure area.
Material departs from tapered region and is put into pressure area, and material is squeezed in this area, along strainer traffic direction pressure with crowded
The reduction of pressure roller diameter and increase, material is squeezed volume contraction, and the gap free water in material is extruded, at this point, substantially
Filter cake is formed, proceeding to the water content of higher-pressure region filter cake after high pressure of pressure afterbody can minimize.
Moisture percentage in sewage sludge is about 70% after processing, and sludge outward transport processing, clear liquid are back to pretreatment regulating reservoir after processing.
The 3.3 sewage disposal solution process features
3..3..1 the requirement of qualified discharge after the characteristics of being directed to this plant chimney stalk and processing, with reference to my company to the waste water
On the basis of investigation, lab scale analysis, we take following monotechnics optimum organization technique：It is acid-base neutralization, coagulation, air supporting, heavy
It forms sediment, filter, decolorising agent cooperates with decoloration with flocculant, drops the techniques such as COD.The technique core processing technology of the engineering is：Pretreatment
Technology and secondary physico-chemical process treatment technology.
3..3..2 physico-chemical process forms with the polluter in waste water mainly by adding appropriate medicament and flocculates and lead to
Cross dissolved air flotation device to be removed, which handled using coagulation dissolved air flotation, SS removal rates up to 96%~99%,
Chroma removal rate is up to more than 80%, and part macromolecule organic suspended matter is removed by secondary materializing strategy, secondary materializing strategy
Depending on effluent quality requirement, for COD, BOD removal rate up to more than 90%, chroma removal rate is more than 95%.Final outflow water is made to reach row
Standard is put, while meets user's recycle-water requirement.
3..3..3 technological advantage：
1. it is simple for process, start soon, equipment operation is simple and convenient, safeguards that simply the medicament of addition is cheap, and market is adopted
Purchaser is just；
2. materialization separation solid slag can reuse, not only make full use of resource, but also can increase economic efficiency；
3. system adapts to, change of water quality ability is strong, and stable effluent quality is good, and water quality treatment amount is high, and water outlet is as clear as crystal,
Reach discharging standards；
(4) each workshop section's treatment effect of engineering design and reuse water
(5) economic and technical norms
10.1 technical economic analyses
5.1.1 the sewage-treatment plant sewage treatment drug consumes：
Medicament A:0.30~0.35 yuan/m3；Medicament B:0.18~0.21 yuan/m3；
Medicament C:0.08~0.10 yuan/m3；Medicament D:0.5~0.66 yuan/m3；
Medicament E:8.38~12.5 yuan/m3；
5.1.2 the sewage-treatment plant power consumption：
Installed capacity is：(4.5+5.5+1.5+0.55+0.55)=12.6KW, operating load 9.55KW, electricity price press 0.65
Member/kw.h, then power consumption be：9.55 × 0.65/70=0.09 members/m3。
5.1.3 system always runs medicament expense and is：
Pre-process cost：0.55 yuan/m3
Materializing strategy cost：1.8 member/m3
Secondary materializing strategy cost：8.58 yuan/m3
Strong oxdiative processing cost：9.5 yuan/m3
5.1.4 after the project implementation every year can 1.5 ten thousand tons of recycle-water, year wound effect 1.5 ten thousand yuan.
5.2 social benefits are analyzed
The technique of the present invention is advanced processing technology routine, and production technology is clean production method, can accomplish row up to standard
It puts, after engineering construction, can significantly cut down suspended matter in sewage, COD discharge capacitys, complete decoloration be realized to waste water, to factory
Surrounding body environment, living environment, which improve, plays good exemplary role, and factory is made really to realize green production, is gone on sustainable
The road of development.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention and from above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of papermaking or the decoloration treatment method of dyeing waste water, it is characterized in that, comprise the following steps：
(1) pre-process：NaOH, Na are added in into waste water2CO3、Ca(OH)2One or more, adjust the PH ﹥ 9 of waste water；
(2) flocculation sediment：Then one or more combinations in Sodium Polyacrylate, poly bis cyanamide, PAM, polyethylene oxide are added in
Flocculant carries out pretreated waste water flocculation sediment, and the addition of flocculant and the ratio of wastewater quality are 1：1000~
100000, the separation of solid and liquid after flocculation is stablized；
(3) decolourize：After separation of solid and liquid, Al is added in into supernatant2(SO4)3、AlCl3、FeSO4、NaNO2In one or more
Carry out decoloring reaction；
(4) flocculation sediment again：Sodium Polyacrylate, poly bis cyanamide, PAM, one kind in polyethylene oxide or more are added after decoloration
Kind combination flocculant carries out flocculation sediment to pretreated waste water, flocculates to solution, the addition and waste water of flocculant
The ratio of quality is 1：1000~100000, the separation of solid and liquid after flocculation is stablized；
(5) water quality detection, color standard are carried out to separated liquid：≤ 50mg/L if colourity is up to standard, then decolourizes to complete；Such as color
Degree is not up to standard, and pH value ﹤ 6, then after adjusting pH value by step (1), repeats step (3), (4) are decolourized and flocculated, and makes PH
Value reaches 6~8, and colourity reaches water quality up to standard；As colourity is not up to standard, and pH value ﹥ 8, then repeat (3), (4) make pH value reach 6
~8, that is, reach colourity water quality up to standard；As colourity is not up to standard, and pH value is 6~8, then repeatedly step (3) until colourity is up to standard.
2. the decoloration treatment method of papermaking or dyeing waste water according to claim 1, it is characterized in that, step (1) pretreatment is adjusted
The pH value for saving waste water is 9.5~11.5.
3. the decoloration treatment method of papermaking or dyeing waste water according to claim 1, it is characterized in that, step (1) pretreatment is adjusted
The pH value for saving waste water is 10~14.
4. the decoloration treatment method of 3 papermaking or dyeing waste water is wanted according to right, it is characterized in that, step (1) pretreatment is adjusted
The pH value of waste water is 10.1~10.3.
5. according to the decoloration treatment method of papermaking or dyeing waste water, feature described in Claims 1-4 any one claim
It is that the addition of step (2) flocculant and the ratio of wastewater quality are 1：5000~50000.
6. the decoloration treatment method of papermaking or dyeing waste water according to claim 5, it is characterized in that, step (2) flocculant
Addition and the ratio of wastewater quality are 1：10000~30000.
7. the decoloration treatment method of papermaking or dyeing waste water according to claim 6, it is characterized in that, step (2) flocculant
Addition and the ratio of wastewater quality are 1：15000~20000.
8. according to the decoloration treatment method of papermaking or dyeing waste water, feature described in Claims 1-4 any one claim
It is that the addition of step (4) flocculant and the ratio of wastewater quality are 1：5000~50000.
9. the decoloration treatment method of papermaking or dyeing waste water according to claim 7, it is characterized in that, step (2) flocculant
Addition and the ratio of wastewater quality are 1：10000~30000.
10. the decoloration treatment method of papermaking or dyeing waste water according to claim 9, it is characterized in that, step (2) flocculant
Addition and the ratio of wastewater quality are 1：15000~20000.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109455842A (en) * | 2018-11-13 | 2019-03-12 | 广东溢达纺织有限公司 | A kind of efficient decolorizing technique of the organic solvent containing dyestuff |
| CN109534547A (en) * | 2018-12-14 | 2019-03-29 | 绍兴布泰纺织印染有限公司 | A kind of printing-dyeing waste water treatment process |
| CN110550762A (en) * | 2018-06-01 | 2019-12-10 | 李界文 | Process for removing COD, ammonia nitrogen, aniline and phosphorus from printing and dyeing wastewater and preparation and use method of medicament |
| CN111470651A (en) * | 2019-12-27 | 2020-07-31 | 西安水牧环境科技有限公司 | Banknote printing gravure ink wastewater treatment process |
| WO2020157385A1 (en) * | 2019-02-01 | 2020-08-06 | Metsä Fibre Oy | Precipitating organic pollutants from aqueous liquids |
| CN113880289A (en) * | 2021-08-20 | 2022-01-04 | 杭州恒迪环保科技有限公司 | High-concentration dyeing and color-judging sewage treatment process and equipment thereof |
| CN116119884A (en) * | 2023-03-23 | 2023-05-16 | 广东翔鸿生态环境工程有限公司 | Printing ink cleaning waste liquid purifying treatment system and treatment method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786165A (en) * | 2011-05-20 | 2012-11-21 | 上海丰信环保科技有限公司 | Method for treating alkali printing and dyeing waste water |
| CN102951756A (en) * | 2012-11-28 | 2013-03-06 | 青岛海安生物环保有限公司 | Method for treating alkaline printing and dyeing wastewater by utilizing waste acid |
| CN103466768A (en) * | 2013-09-18 | 2013-12-25 | 北京大学 | Floc reflux coagulation process for treating biochemical printing and dyeing effluent |
| CN103539292A (en) * | 2013-11-18 | 2014-01-29 | 江苏省环境科学研究院 | Coagulation and sedimentation method for deep treatment of biochemical tail water of printing and dyeing wastewater |
| CN104402138A (en) * | 2014-10-24 | 2015-03-11 | 无锡伊佩克科技有限公司 | Papermaking wastewater treatment method |
-
2016
- 2016-11-19 CN CN201611019505.8A patent/CN108083483A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786165A (en) * | 2011-05-20 | 2012-11-21 | 上海丰信环保科技有限公司 | Method for treating alkali printing and dyeing waste water |
| CN102951756A (en) * | 2012-11-28 | 2013-03-06 | 青岛海安生物环保有限公司 | Method for treating alkaline printing and dyeing wastewater by utilizing waste acid |
| CN103466768A (en) * | 2013-09-18 | 2013-12-25 | 北京大学 | Floc reflux coagulation process for treating biochemical printing and dyeing effluent |
| CN103539292A (en) * | 2013-11-18 | 2014-01-29 | 江苏省环境科学研究院 | Coagulation and sedimentation method for deep treatment of biochemical tail water of printing and dyeing wastewater |
| CN104402138A (en) * | 2014-10-24 | 2015-03-11 | 无锡伊佩克科技有限公司 | Papermaking wastewater treatment method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110550762A (en) * | 2018-06-01 | 2019-12-10 | 李界文 | Process for removing COD, ammonia nitrogen, aniline and phosphorus from printing and dyeing wastewater and preparation and use method of medicament |
| CN109455842A (en) * | 2018-11-13 | 2019-03-12 | 广东溢达纺织有限公司 | A kind of efficient decolorizing technique of the organic solvent containing dyestuff |
| CN109534547A (en) * | 2018-12-14 | 2019-03-29 | 绍兴布泰纺织印染有限公司 | A kind of printing-dyeing waste water treatment process |
| WO2020157385A1 (en) * | 2019-02-01 | 2020-08-06 | Metsä Fibre Oy | Precipitating organic pollutants from aqueous liquids |
| CN111470651A (en) * | 2019-12-27 | 2020-07-31 | 西安水牧环境科技有限公司 | Banknote printing gravure ink wastewater treatment process |
| CN113880289A (en) * | 2021-08-20 | 2022-01-04 | 杭州恒迪环保科技有限公司 | High-concentration dyeing and color-judging sewage treatment process and equipment thereof |
| WO2024184539A1 (en) * | 2023-03-09 | 2024-09-12 | Snf Group | A treatment method of at least one colloidal toc present in wastewater |
| CN116119884A (en) * | 2023-03-23 | 2023-05-16 | 广东翔鸿生态环境工程有限公司 | Printing ink cleaning waste liquid purifying treatment system and treatment method |
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