CN104944680B - A kind of handling process of printing and dyeing assistant sewage - Google Patents
A kind of handling process of printing and dyeing assistant sewage Download PDFInfo
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Abstract
The invention discloses a kind of handling process of printing and dyeing assistant sewage, comprise the following steps：(1) sewage is removed after granule foreign in feeding sedimentation pot；(2) add hypersober into sewage, stir 20~60min；(3) step (2) completes to add flocculating settling agent in backward sewage, stirring, stratification；PAMC is added, then press filtration sludge, part reusing filter cake is used as hypersober in step (2)；(4) filtrate in step (3) is subjected to biochemical treatment in biochemistry pool；(5) sewage after biochemical treatment is handled into tube settler, and the processing water partly clarified after processing is back to biochemistry pool in-depth processing；(6) the processing water that remainder is clarified in step (5) enters adsorption stuffing pond, directly discharges or reclaims after absorption.The present invention have the advantages that technique it is simple, using facilitating, it is with low cost.
Description
Technical field
The present invention relates to sewage treatment area, more particularly to a kind of handling process of printing and dyeing assistant sewage.
Background technology
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% turn into waste water.Contain in waste water
Dyestuff, slurry, auxiliary agent, finish, soda acid, fiber impurity, sand class material, inorganic salts etc..Dyeing waste water has that water is big, organic dirt
The features such as thing content is high, colourity is deep, alkalescence is big, change of water quality is big is contaminated, belongs to intractable industrial wastewater.
At present, the processing method of dyeing waste water, mainly has chemical coagulation process, biochemical treatment process and physical treatment process, adopts more
Biochemical treatment is taken to be used in combination with materializing strategy, in the hope of reaching optimization process effect.
The process integration of the treatment of dyeing wastewater of " pretreatment+anaerobism+aerobic+coagulating sedimentation " as shown in Figure 1 is (with reference to text
Offer：Hole is built up, Shaoxing Wastewater Treatment Plant the second stage of the project process debugging and transformation [D], Zhejiang Polytechnical University, 2012), including：
1st, pre-process：Pre-process the inlet water lifting pumps room that includes equalization pond, regulating reservoir and match, regulating reservoir is to adjust water
Based on amount, uniformly acted on while playing water quality；
2nd, biochemical treatment：Including Anaerobic Treatment and Aerobic Process for Treatment, wherein Anaerobic Treatment include anaerobic pond, intermediate sedimentation pond and
The sludge reflux pump house matched, by adjusting and being buffered into adverse effect of the change to Aerobic Process for Treatment of water water quality, makes sewage
PH value reduction；It can convert the material and coloring matter of some difficult for biological degradation in sewage, so as to improve aerobic portion
Divide COD clearance and percent of decolourization；The surplus sludge volume of biochemical treatment system is reduced, reduces sludge treatment equipment scale, it is aerobic
The air blast computer room and sludge reflux pump house that include aeration tank, second pond and match are handled, by blast aeration, using aerobic micro-
Most of organic matter in biological removal sewage；
3rd, materializing strategy：Including between flocculation sedimentation tank and supporting dosing, storage medicine pond etc..Due to by anaerobic-aerobic life
The emission request or colourity that water outlet COD after change processing does not reach 180mg/L still are exceeded, it is necessary to be flocculated by adding aluminum sulfate etc.
Medicament carries out coagulating treatment, makes COD, colourity rear safety dumping up to standard；
4th, follow-up Treatment of Sludge：Sludge stack-up-yard including concentration basin, mud storage pool and Large Copacity, at biochemical, materialization
The excess sludge that reason is produced is concentrated, is dehydrated and landfill disposal.
This joint biochemical treatment and the sewage treatment process of materializing strategy, water-quality COD, colourity after processing etc. are basic
On can be with up to standard, but processing procedure is complex, treatment effeciency reduction, it is difficult to the need for meeting designed capacity.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of simple, efficient, with low cost print
The handling process of dye auxiliary agent sewage.
To achieve the above object, the invention provides following technical scheme：
A kind of handling process of printing and dyeing assistant sewage, comprises the following steps：
(1) sewage is removed after granule foreign in feeding sedimentation pot；
(2) add hypersober into sewage, stir 20~60min；
(3) step (2) completes to add flocculating settling agent in backward sewage, stirring, stratification；Add cation poly- third
Acrylamide, then press filtration sludge, part reusing filter cake is used as hypersober in step (2)；
(4) filtrate in step (3) is subjected to biochemical treatment in biochemistry pool；
(5) sewage after biochemical treatment is handled into tube settler, the processing water backflow partly clarified after processing
To biochemistry pool in-depth processing；
(6) the processing water that remainder is clarified in step (5) enters adsorption stuffing pond, directly discharges or returns after absorption
Receive.
Printing and dyeing assistant sewage organic pollution content is high, difficult for biological degradation.The processing work of the printing and dyeing assistant sewage of the present invention
Skill is preprocessed before biochemical treatment-and the step such as activated adoption-flocculation sediment removes part pollutant in decontaminated water, improves follow-up raw
Change the effect of processing, the sewage after biochemical treatment can reach emission request after follow-up precipitation, absorption process, can also return
Receive for industrial water.
Preferably, in step (2), in parts by weight, the component of the hypersober includes：25~30 parts organic
Bentonite, 15~25 parts of sodium bentonite, 5~10 parts of aluminium polychloride, 10~15 parts of starch, 20~25 parts of diatom
Soil, 10~15 parts of culm micro mist, 0.1~0.3 part of active dispersing agents；Most preferably, in step (2), in parts by weight, institute
Stating the component of hypersober includes：27 parts of organobentonite, 18 parts of sodium bentonite, 4 parts of aluminium polychloride, 15 parts
Starch, 22 parts of diatomite, 13 parts of culm micro mist, 0.1 part of active dispersing agents.Described active dispersing agents are commercially available
Diffusant, dispersant；It is preferred that, described active dispersing agents are dispersant NNO.
Preferably, in step (2), the consumption of the hypersober is 2~5kg of sewage per ton；Experimental data shows,
It is larger with the handling process effluent quality influence for comparing the present invention between the consumption and its each component of hypersober.Increase is lived
Property adsorbent consumption, can improve adsorption effect, improve effluent quality；If but its consumption is excessive, the amount of filter cake can be increased,
The input cost of increase processing filter cake, while influenceing effluent quality.Most preferably, the consumption of the hypersober is dirt per ton
Water 2.5kg.
Preferably, in step (3), in parts by weight, the component of the flocculating settling agent includes：25~30 parts of sulfuric acid
Ferrous iron, 20~25 parts of bodied ferric sulfate, 5~10 parts of aluminium polychloride, 10~15 parts of sodium phosphate, 10~15 parts of chlorination
Magnesium, 20~25 parts of lime, 5~10 parts of caustic soda；Most preferably, in step (3), in parts by weight, the flocculating settling agent
Component include：22 parts of ferrous sulfate, 23 parts of bodied ferric sulfate, 5 parts of aluminium polychloride, 10 parts of sodium phosphate, 10 parts
Magnesium chloride, 18 parts of lime, 7 parts of caustic soda.
Preferably, in step (3), the consumption of the flocculating settling agent is 2~5kg of sewage per ton；Experimental data shows,
Also being had a certain impact with the handling process effluent quality for comparing the present invention between the consumption and its each component of flocculating settling agent.
It is similar with hypersober, if flocculating settling agent consumption is excessive, the amount of filter cake can be increased, while in water outlet flocculant residual quantity
Rise, influences effluent quality, therefore should be by the consumption control of flocculating settling agent within the specific limits.Most preferably, the flocculation
The consumption of precipitating reagent is sewage 2.5kg per ton.
Preferably, in step (3), the consumption of PAMC is 1~3g of sewage per ton；Most preferably, it is positive
The consumption of cationic polyacrylamide is sewage 3g per ton.
In the present invention, hypersober, flocculating settling agent, the consumption of PAMC are according in corresponding steps
Depending on the amount of sewage.
Preferably, in step (6), in parts by weight, the filler component in the adsorption stuffing pond includes：60~80 parts
Granular activated carbon, 20~40 parts of manganese sand, the specific surface area of the granular activated carbon is 1500~2000m2/ g, the filler warp
Processing Posterior circle is used；Most preferably, in parts by weight, the filler component in the adsorption stuffing pond includes：50 parts of particle is lived
Property charcoal, 50 parts of manganese sand.The filler in filler pond can be recycled repeatedly after processing, reduce production cost.
Preferably, in step (4), described biochemical treatment includes：
Filtrate in step (3) is squeezed into anaerobic pond hydrolysis acidification processing by (4-1), and nitre in decontaminated water is removed through denitrification
State nitrogen；
Sewage self-flowing in (4-2) anaerobic pond enters Aerobic Pond, and regulation Aerobic Pond pH is 7.5~8.5, is removed through digestion
Organic pollution in decontaminated water；
Sewage self-flowing in (4-3) Aerobic Pond enters oxygen compatibility pool, carries out secondary counter nitrification processing, removes what is generated in Aerobic Pond
Nitrate nitrogen.
The dissolved oxygen amount in dissolved oxygen monitor, detection sewage is respectively arranged with described Aerobic Pond and oxygen compatibility pool.
A kind of preferred technical scheme, comprises the following steps：
(1) sewage is removed after granule foreign in feeding sedimentation pot；
(2) add hypersober into sewage, stir 20~60min；
In parts by weight, the component of the hypersober includes：27 parts of organobentonite, 18 parts of Na-bentonite
Soil, 4 parts of aluminium polychloride, 15 parts of starch, 22 parts of diatomite, 13 parts of culm micro mist, 0.1 part of active dispersing agents；
The consumption of the hypersober is sewage 2.5kg per ton；
(3) step (2) completes to add flocculating settling agent in backward sewage, stirring, stratification；Add cation poly- third
Acrylamide, then press filtration sludge, part reusing filter cake is used as hypersober in step (2)；
In parts by weight, the component of the flocculating settling agent includes：22 parts of ferrous sulfate, 23 parts of bodied ferric sulfate, 5
The aluminium polychloride, 10 parts of sodium phosphate, 10 parts of magnesium chloride, 18 parts of lime, 7 parts of caustic soda of part；The flocculating settling agent
Consumption be sewage 2.5kg per ton；The consumption of PAMC is sewage 3g per ton；
(4) filtrate in step (3) is subjected to biochemical treatment in biochemistry pool；
(5) sewage after biochemical treatment is handled into tube settler, the processing water backflow partly clarified after processing
To biochemistry pool in-depth processing；
(6) the processing water that remainder is clarified in step (5) enters adsorption stuffing pond, directly discharges or returns after absorption
Receive.
In such scheme, the filler component in the adsorption stuffing pond includes：50 parts of granular activated carbon, 50 parts of manganese sand.
Beneficial effects of the present invention are as follows：
The present invention passes through by carrying out sieving pretreatment, activation absorption to sewage, flocculation sediment, hydrolysis acidification, aerobic detesting
Oxygen coupling is biochemical and combination of oxygen denitrification and the step such as sedimentation filtration and deep activation absorption, realize superelevation COD,
The clearance of BOD, ammonia nitrogen, total nitrogen, total phosphorus and colourity and suspended things.Its technique is simple, using convenient, with low cost, with compared with
Good application value.
Brief description of the drawings
Fig. 1 is the flow chart of the process integration of the treatment of dyeing wastewater of prior art；
Fig. 2 is the flow chart of the handling process of printing and dyeing assistant sewage of the present invention.
Embodiment
Embodiment 1
(1) use sewage collecting pump by sewage after sieve plate removes large granular impurity, feeding materialization sedimentation separation pot is stirred
Mix uniform；
(2) hypersober is added in sedimentation pot and continues to stir 0.5h, adsorbent activating catalytic is completed；Activated adoption
The composition of agent is：The organobentonite of 25 parts by weight, the sodium bentonite of 20 parts by weight, the culm micro mist of 10 parts by weight, 5 weight
Part aluminium polychloride, the starch of 15 parts by weight, 22 parts by weight diatomite, the active dispersing agents of 0.3 parts by weight, adsorbent plus
Enter amount for sewage 2.5kg per ton.
(3) add flocculating settling agent in sedimentation pot and carry out coagulating sedimentation, stratification after stirring；Add sun from
Press filtration is handled after sub- polyacrylamide (PAM) concentration, and filter cake is reclaimed, and is partly back to step (2) as adsorbent；Flocculation sediment
The composition of agent is：The ferrous sulfate of 25 parts by weight, the bodied ferric sulfate of 25 parts by weight, the aluminium polychloride of 5 parts by weight, 10 weight
The sodium phosphate, the magnesium chloride of 10 parts by weight, the lime of 20 parts by weight, the caustic soda of 5 parts by weight of part；The addition of flocculating settling agent is
For sewage 2.5kg per ton；The addition of cationic PAM is sewage 3g per ton.
(4) layering clear liquid in sedimentation pot is squeezed into anaerobic pond hydrolysis acidification processing, bentonite and battalion is added in anaerobic pond
Agent is supported there is provided good bacterial multiplication environment, by denitrification, the nitrate, nitrite in sewage are thin by denitrification
Bacterium is reduced to nitrogen discharge；
(5) sewage self-flowing handled by hydrolysis acidification enters the aerobic of the aerator with dissolved oxygen (DO) monitor
Chi Qu, and sodium carbonate regulation pH7.5~8.5 are added, the aerobic microbiological in aerobic region, sewage, which is decomposed, absorbs all kinds of organic
Ammonium nitrogen is converted into nitrate nitrogen by waste and phosphorus, nitrobacteria, and forms high phosphorus biochemical sludge；
(6) sewage self-flowing through Aerobic Process for Treatment enters the oxygen compatibility pool with DO monitors, carries out secondary counter nitrification processing, will
The nitrate-nitrogen reduction of aerobic zone generation is discharged for nitrogen, further reduction sewage total nitrogen content；
(7) sewage self-flowing through simultaneous oxygen processing enters the preliminary sedimentation tank with inclined tube grid, at tube settler detention biochemistry
The activated sludge produced during reason, obtains more limpid one of processing sewage, and preliminary sedimentation tank sets up sewage backflow device, can be by
Processing sewage carries out anaerobic pond backflow, further in-depth processing together；
(8) sewage self-flowing settled through preliminary sedimentation tank enters the adsorption stuffing pond with activated adoption device, and sewage is passed through under
To overflow mode by being overflowed after activated adoption packing groove, activated adoption advanced treating is carried out；
(9) sewage self-flowing after being handled through activated adoption enters discharge collecting pit, is collected by the pump housing and is back to work
Industry waste water or discharge.
The sewage treated by the above method, percent of decolourization is that 90.2%, COD clearances are for 86.3%, BOD clearances
83%, nitrogen removal rate is 50.5%, and total tp removal rate is 94.9%, and 20 microns of solid content residual rates are 22.1%, flocculant
Residual rate is 7.4%.
Embodiment 2
Compared with Example 1, its difference is：
In step (2), the composition of hypersober is：The Na-bentonite of the organobentonite of 30 parts by weight, 15 parts by weight
Soil, the culm micro mist of 10 parts by weight, the aluminium polychloride of 7 parts by weight, the starch of 13 parts by weight, 23 parts by weight diatomite, 0.2 weight
Measure the active dispersing agents of part；
In step (3), the composition of flocculating settling agent is：The ferrous sulfate of 22 parts by weight, the bodied ferric sulfate of 23 parts by weight,
The aluminium polychloride of 5 parts by weight, the sodium phosphate of 10 parts by weight, the magnesium chloride of 10 parts by weight, the lime of 18 parts by weight, 7 parts by weight
Caustic soda.
The sewage treated by this method, percent of decolourization is that 91.2%, COD clearances are for 83.3%, BOD clearances
80.1%, nitrogen removal rate is 53.5%, and total tp removal rate is 91.9%, and 20 microns of solid content residual rates are 23.3%, flocculation
Agent residual rate is 8.4%.
Embodiment 3
Compared with Example 1, its difference is：
In step (2), the composition of hypersober is：The Na-bentonite of the organobentonite of 27 parts by weight, 18 parts by weight
Soil, the culm micro mist of 13 parts by weight, the aluminium polychloride of 4 parts by weight, the starch of 15 parts by weight, 22 parts by weight diatomite, 0.1 weight
Measure the active dispersing agents of part；
In step (3), the composition of flocculating settling agent is：The ferrous sulfate of 30 parts by weight, the bodied ferric sulfate of 20 parts by weight,
The aluminium polychloride of 5 parts by weight, the sodium phosphate of 10 parts by weight, the magnesium chloride of 10 parts by weight, the lime of 20 parts by weight, 5 parts by weight
Caustic soda.
The sewage treated by this method, percent of decolourization is that 92.9%, COD clearances are for 86.6%, BOD clearances
83.7%, nitrogen removal rate is 55.1%, and total tp removal rate is 92.3%, and 20 microns of solid content residual rates are 25.1%, flocculation
Agent residual rate is 8.7%.
Embodiment 4
Compared with Example 3, its difference is：
In step (2), the consumption of hypersober is sewage 5kg per ton.
The sewage treated by this method, percent of decolourization is that 93.4%, COD clearances are for 85.6%, BOD clearances
84.5%, nitrogen removal rate is 55.0%, and total tp removal rate is 93.3%, and 20 microns of solid content residual rates are 28.2%, flocculation
Agent residual rate is 8.3%.
Embodiment 5
Compared with Example 3, its difference is：
In step (3), the consumption of flocculating settling agent is sewage 5kg per ton.
The sewage treated by this method, percent of decolourization is that 93.8%, COD clearances are for 83.6%, BOD clearances
83.9%, nitrogen removal rate is 55.3%, and total tp removal rate is 92.1%, and 20 microns of solid content residual rates are 25.6%, flocculation
Agent residual rate is 10.6%.
Technical scheme and beneficial effect are described in detail embodiment described above, it should be understood that
The specific embodiment of the present invention is the foregoing is only, is not intended to limit the invention, it is all to be done in the spirit of the present invention
Any modification, supplement and equivalent substitution etc., should be included in the scope of the protection.
Claims (4)
1. a kind of handling process of printing and dyeing assistant sewage, it is characterised in that comprise the following steps：
(1) sewage is removed after granule foreign in feeding sedimentation pot；
(2) add hypersober into sewage, stir 20~60min；
In parts by weight, the component of the hypersober includes：25~30 parts of organobentonite, 15~25 parts of sodium base are swollen
Moisten soil, 5~10 parts of aluminium polychloride, 10~15 parts of starch, 20~25 parts of diatomite, 10~15 parts of culm micro mist,
0.1~0.3 part of active dispersing agents；
The consumption of the hypersober is 2~5kg of sewage per ton；
(3) step (2) completes to add flocculating settling agent in backward sewage, stirring, stratification；Add cation polypropylene acyl
Amine, then press filtration sludge, part reusing filter cake is used as hypersober in step (2)；
In parts by weight, the component of the flocculating settling agent includes：25~30 parts of ferrous sulfate, 20~25 parts of polyaluminum sulfate
Iron, 5~10 parts of aluminium polychloride, 10~15 parts of sodium phosphate, 10~15 parts of magnesium chloride, 20~25 parts of lime, 5~10
The caustic soda of part；
The consumption of the flocculating settling agent is 2~5kg of sewage per ton；
The consumption of PAMC is 1~3g of sewage per ton；
(4) filtrate in step (3) is subjected to biochemical treatment in biochemistry pool；
(5) sewage after biochemical treatment is handled into tube settler, and the processing water partly clarified after processing is back to life
Change pond in-depth processing；
(6) the processing water that remainder is clarified in step (5) enters adsorption stuffing pond, directly discharges or reclaims after absorption.
2. the handling process of printing and dyeing assistant sewage according to claim 1, it is characterised in that in step (6), with parts by weight
Meter, the filler component in the adsorption stuffing pond includes：60~80 parts of granular activated carbon, 20~40 parts of manganese sand, the particle
The specific surface area of activated carbon is 1500~2000m2/g。
3. the handling process of printing and dyeing assistant sewage according to claim 1, it is characterised in that in step (4), described life
Change processing includes：
Filtrate in step (3) is squeezed into anaerobic pond hydrolysis acidification processing by (4-1), and nitre state in decontaminated water is removed through denitrification
Nitrogen；
Sewage in (4-2) anaerobic pond enters Aerobic Pond, and regulation Aerobic Pond pH is 7.5~8.5, is removed through digestion in decontaminated water
Organic pollution；
Sewage in (4-3) Aerobic Pond enters oxygen compatibility pool, carries out secondary counter nitrification processing, removes the nitrate nitrogen generated in Aerobic Pond.
4. the handling process of printing and dyeing assistant sewage according to claim 3, it is characterised in that described Aerobic Pond and and oxygen
The dissolved oxygen amount in dissolved oxygen monitor, detection sewage is respectively arranged with pond.
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| CN105417777B (en) * | 2015-12-01 | 2018-03-16 | 大连爱安沃特环境技术有限公司 | Sewage Coagulation and Adsorption precipitates separation-isolate anaerobic methane regeneration treating method |
| CN105541039A (en) * | 2016-01-22 | 2016-05-04 | 湖北川东环保能源开发股份有限公司 | Printing and dyeing wastewater treatment method |
| CN106242167A (en) * | 2016-08-23 | 2016-12-21 | 浙江华昌纺织有限公司 | Printing and dyeing wastewater treatment system |
| CN106242171A (en) * | 2016-08-23 | 2016-12-21 | 浙江华昌纺织有限公司 | Treatment method of printing and dying wastewater |
| CN106630396A (en) * | 2016-11-23 | 2017-05-10 | 武汉轻工大学 | Simple process for treating wastewater containing various dyes |
| CN107840463A (en) * | 2017-12-19 | 2018-03-27 | 安徽仁维环保工程科技有限公司 | A kind of sewage-treating agent and preparation method thereof |
| CN108773967A (en) * | 2018-05-11 | 2018-11-09 | 绍兴永丰纺织印染有限公司 | Flocking waste water short route treatment process |
| CN108911373A (en) * | 2018-06-28 | 2018-11-30 | 绍兴宏强印染有限公司 | A kind for the treatment of process of dyeing and printing sewage |
| CN109626728A (en) * | 2018-12-26 | 2019-04-16 | 东华大学 | A kind of industrial wastewater organic carbon and interior utilization 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 |
| CN114291930B (en) * | 2021-12-30 | 2023-04-18 | 海南金海浆纸业有限公司 | Treatment method of boiler washing wastewater of sulfate pulping alkali recovery boiler |
| CN116425375A (en) * | 2023-06-13 | 2023-07-14 | 湖南子宏生态科技股份有限公司 | Purification method of domestic sewage |
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| CN101602563A (en) * | 2009-02-20 | 2009-12-16 | 李颖 | The method of biology, ecological sectional purifying treatment sanitary sewage |
| CN102815843B (en) * | 2012-09-04 | 2014-07-02 | 浙江商达环保有限公司 | Printing and dyeing wastewater decolorization treatment method |
| CN103771662A (en) * | 2014-01-20 | 2014-05-07 | 南通华新环保设备工程有限公司 | Printing and dyeing wastewater treatment process |
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