CN208104170U - A kind of advanced treatment apparatus for printing and dyeing wastewater - Google Patents
A kind of advanced treatment apparatus for printing and dyeing wastewater Download PDFInfo
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- CN208104170U CN208104170U CN201820341827.2U CN201820341827U CN208104170U CN 208104170 U CN208104170 U CN 208104170U CN 201820341827 U CN201820341827 U CN 201820341827U CN 208104170 U CN208104170 U CN 208104170U
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Abstract
The utility model discloses a kind of advanced treatment apparatus for printing and dyeing wastewater, including sequentially connected pre-treatment and activation reactor, advanced treatment reactor, A/O method reactor, biomembrane denitrogenation reactor, wherein, the advanced treatment reactor and the A/O method reactor are separately connected and are provided with the first sedimentation basin and the second sedimentation basin, and first sedimentation basin and second sedimentation basin carry out dehydration concentration by dewaterer, and the sludge modifying process of reactor is recycled eventually by sludge circulation.For dyeing waste water, classification processing is carried out to it by four big reactors, thoroughly solve that current printing-dyeing waste water treatment process and equipment operation intelligence degree are low, energy consumption is high, decoloration sludge yield is big and easy inverse, is discharged the problems such as not up to standard and reclamation rate is low.
Description
Technical field
The utility model relates to sewage-treatment plants, and in particular to a kind of advanced treatment apparatus for printing and dyeing wastewater.
Background technique
Dyeing discharges a large amount of waste water in process of production and generates pollution, four processes of dyeing and printing process to environment
Waste water will be discharged, pretreatment stage (including singing, desizing, boiling-off, bleaching, the processes such as mercerising) will be discharged desized wastewater, boil
Waste water, bleaching effluent and mercerizing waste water are refined, dyeing waste-water is discharged in dyeing process, and printing waste water is discharged in revenue stamp process and soap lye is useless
Arrangement waste water is then discharged in water, arranging process.Dyeing waste water is the composite waste of the above all kinds of waste water, or in addition to bleaching effluent
Comprehensive wastewater.
According to incompletely statistics, the daily discharge amount of national dyeing waste water is (3~4) × 106m3/d, and it is total to account for national industrial wastewater
The 35% of discharge amount, and increased year by year with 1% speed.The water quality of dyeing waste water with use kinds of fibers and processing technology not
Same and different, contaminant component is widely different.It is 400~1000mg/L that general dyeing waste water pH value, which is 6~10, COD, and BOD is
100~400mg/L, SS are 100~200mg/L, and coloration is 100~400 times.But when dyeing and printing process and the kinds of fibers of use
After processing technology variation, waste water quality will have large change.Such as, when in waste water contain terylene artificial silk dyeing process in generate
Alkali decrement waste water when, waste water COD will be increased to 2000~3000mg/L or more, and BOD increases to 800mg/L or more, pH
Value is up to 11.5~12, and waste water quality increases with the additional amount of terylene artificial silk printing and dyeing alkali decrement waste water and deteriorated.Work as addition
Alkali decrement waste water in COD amount be more than waste water in COD amount 20% when, biochemical treatment would become hard to adapt to.In the waste water of discharge
The slurry that entrainment and process containing fibrous raw material itself use（Polyvinyl alcohol (PVA), Soft flocks, starch alkali and
Various auxiliary agents）, finish, surfactant, dyestuff and chemical assistant etc., have that biochemical oxygen demand (BOD) is high, coloration is high, pH value is high, difficult
Biodegradable, diverse " a three high hardly possiblies one become " feature.Remaining dye component is discharged into water even if concentration is very low in waste water
Body will also result in the reduction of gas solubility in water body light transmittance and water body, will affect the growth of various biologies in water, thus broken
The food chain of bad water body purity and aquatile, finally will lead to the destruction of water ecosystem.
Dyeing waste water is always what water treatment field faced because coloration is big, basicity is big, complicated component, is difficult to biochemical treatment
Key subjects.The common printing-dyeing waste water treatment process of domestic contrast at present generally has materialization, biochemistry（Or flocculation-biochemistry-suction
It is attached）Processing technology routine, including biological activated sludge pond facture, physicochemical treatment method and membrane processing method etc..These processing
Technically all comparative maturity, treatment effect are preferable for technique, are applied in many Practical Projects.But due to changing in recent years
The progress for learning the development of fabric, the rise of Silk and final finishing technology of printing and dyeing, has increased considerably treatment of dyeing wastewater
The difficulty of technique can mainly be summarized as two aspects：(1) COD difficulty removes.(bleeding agent helps auxiliary agent used in printing and dyeing production
Stain etc.) it 95% or more is trapped in waste water, cause COD concentration high, theoretically these organic pollutants biochemical can largely drop
Solution, but practical water quality B/C ratio is generally lower, and biodegradability is poor.There are also some organic substances in dyeing waste water, no matter to micro-
Whether there is or not inhibiting effect for biology, cannot all be ingested by microorganism, and in actual production, this kind of organic substance is still difficult to through repeatedly biochemical
It effectively removes, meanwhile, activated sludge tames changeable dyestuff and auxiliary agent, adaptation is also relatively difficult, causes COD after wastewater treatment
Value is still higher, how to improve COD removal rate, is treatment of dyeing wastewater one of problem urgently to be resolved.(2) high-colour intensity wastewater is difficult
Decoloration.The dye species contained in dyeing waste water are more, classification is complicated, and it is difficult to decolourize.Domestic dyestuff dye-uptake is lower, printing and dyeing
Enterprise generally all can excess add, excess dye is more after dyeing, not only results in waste of resources, and it is more how close than developed country to produce dirty amount
1 times, and increase the difficulty of waste water decoloring.
Therefore, the decoloration of printing and dyeing industrial waste water, it is big that drop COD has become Now Domestic external environment engineering circles urgently to be solved one
Problem.
In view of defect existing for above-mentioned existing printing-dyeing waste water treatment process, the utility model people is based on being engaged in such production
Product manufacture and design practical experience and professional knowledge abundant for many years, and cooperate the utilization of scientific principle, are actively subject to research and innovation, to
A kind of advanced treatment apparatus for printing and dyeing wastewater is founded, makes it with more practicability.By constantly studying, designing, and tried repeatedly
After making sample and improving, the utility model having practical value is created finally.
Utility model content
The main purpose of the utility model is that overcoming defect existing for existing printing-dyeing waste water treatment process, and provide
A kind of advanced treatment apparatus for printing and dyeing wastewater, thus more suitable for practical, and with the utility value in industry.
It the purpose of this utility model and solves its technical problem and adopts the following technical solutions to realize.
A kind of advanced treatment apparatus for printing and dyeing wastewater, including the reaction of sequentially connected pre-treatment and activation reactor, advanced treating
Device, A/O method reactor, biomembrane denitrogenation reactor, wherein the advanced treatment reactor and A/O method reactor difference
Be connected with the first sedimentation basin and the second sedimentation basin, and first sedimentation basin and second sedimentation basin by dewaterer into
Row dehydration concentration, and eventually by the sludge modifying process of sludge circulation recycling reactor.
As a kind of perferred technical scheme, the pre-treatment and activation reactor is provided with feeding port, solid for launching HY
Agent and Fe3+。
As a kind of perferred technical scheme, it is provided in the advanced treatment reactor for oxygen to occur with dyeing waste water
Change the oxidant of reaction.
As a kind of perferred technical scheme, it is provided with multiple groups PP filter material in the biomembrane denitrogenation reactor, and described
PP filter material is porous irregular formed body, and the surface enrichment of the PP filter material has biological nitration bacterium and denitrifying bacterium.
As a kind of perferred technical scheme, oxidant is provided in the sludge circulation recycling reactor and β-Portugal is poly-
Carbohydrase.
As a kind of perferred technical scheme, the sludge circulation recycles reactor to be provided with for being discharged containing Fe3+'s
Modify the liquid outlet of ferrous solution and the solid outlet for organic sludge to be discharged, wherein the liquid outlet and the pre- place
Manage activated reactor connection.
The treatment process of advanced treatment apparatus for printing and dyeing wastewater, includes the following steps：
Dyeing waste water is pumped into the pre-treatment and activation reactor by step 1, with the HY in the pre-treatment and activation reactor
Curing agent and Fe3+Sufficiently reaction, obtains the first intermediate product；
Step 2, first intermediate product for obtaining the step 1 pass through the advanced treatment reactor, and described
Oxidant reaction in advanced treatment reactor, the coloration in removal first intermediate product simultaneously remove part COD and phosphorus object
Matter obtains the second intermediate product and sludge；
Step 3, second intermediate product for obtaining the step 2 pass through the A/O method reactor, by anoxic/
Aerobic nitrogen removal technique removes the COD and nitrogen substance in second intermediate product, obtains third intermediate product and sludge；
Step 4, the third intermediate product for obtaining the step 3 pass through the biomembrane denitrogenation reactor, and pass through
It crosses PP filter material and efficiently removes nitrogen substance remaining in the third intermediate product, ultimately form clear liquid, be discharged.
It as a kind of perferred technical scheme, further include step 5, by the step 2 and the finally obtained institute of the step 3
It states sludge and dehydration concentration is carried out by dewaterer, and recycle the sludge of reactor to modify eventually by the sludge circulation
Processing.
As a kind of perferred technical scheme, the advanced treating of the step 2 carries out in acid condition.
As a kind of perferred technical scheme, the substance formed after the step 2 reaction is in first sedimentation basin
In precipitated, and in first sedimentation basin be added alkali to neutralize the acid being added in step 2 reaction process.
By adopting the above technical scheme, it can be realized following technical effect：
For dyeing waste water, classification processing is carried out to it by four big reactors, thoroughly solves current treatment of dyeing wastewater
Technique and equipment operation intelligence degree are low, energy consumption is high, decoloration sludge yield is big and easy inverse, the not up to standard and reclamation rate of water outlet are low
The problems such as；
By the processing step of pretreatment-biochemistry-deep oxidation reaction, it can be achieved that efficient process to dyeing waste water, from
Obtained from be discharged and reach《Textile dyeing and finishing industrial water pollution object discharge standard》（GB 4287-2012）2 Plays of table（COD≤
50mg/L, nitrogen oxygen≤5mg/L, total nitrogen≤15mg/L, total phosphorus≤0.55mg/L）；
Treatment of dyeing wastewater coloration≤8,85% or more mud decrement, transformation sludge circulation recycle.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model advanced treatment apparatus for printing and dyeing wastewater；
Wherein, 1- pre-treatment and activation reactor；2- advanced treatment reactor；The first sedimentation basin of 3-；4-A/O method reactor；
The second sedimentation basin of 5-；6- biomembrane denitrogenation reactor；7- sewage sludge storage pond；8- dewaterer, 9- sludge circulation recycle reactor.
Specific embodiment
Further to illustrate that the utility model is the technical means and efficacy reaching predetermined purpose of utility model and being taken,
To according to the utility model proposes advanced treatment apparatus for printing and dyeing wastewater and its treatment process its specific embodiment, feature and its
Effect, detailed description is as follows.
As shown in Figure 1, the utility model discloses a kind of advanced treatment apparatus for printing and dyeing wastewater, including sequentially connected pre- place
Activated reactor 1, advanced treatment reactor 2, A/O method reactor 4, biomembrane denitrogenation reactor 6 are managed, is led between each reactor
Piping connection, wherein advanced treatment reactor 2 and A/O method reactor 4 are separately connected and are provided with the first sedimentation basin 3 and second
Sedimentation basin 5, the intermediate product for being formed after precipitation reaction, solid and liquid are effectively separated, and liquid enters lower one
Reactor, solid is uniformly discharged into sewage sludge storage pond 7 and carries out subsequent processing, and the first sedimentation basin 3 and the second sedimentation basin 5 are by taking off
Water dispenser 8 carries out dehydration concentration, and the sludge modifying process of reactor 9 is recycled eventually by sludge circulation.
As a kind of perferred technical scheme, pre-treatment and activation reactor 1 is provided with feeding port, for launching HY curing agent
And Fe3+.Due to the progress with the reaction in pre-treatment and activation reactor 1, HY curing agent and Fe3+Constantly consumption, and be arranged
Feeding port is convenient for HY curing agent and Fe3+Investment, and preferred, there are two feeding port settings, is respectively used to launch HY curing agent
And Fe3+。
As a kind of perferred technical scheme, it is provided in advanced treatment reactor 2 for being aoxidized with dyeing waste water
The oxidant of reaction.Preferably, oxidant includes catalase, peroxide, dehydroactic acid, in the acidity of deep reaction device
Coloration remaining in dyeing waste water is efficiently removed under reaction condition, can decolourize sludge quantity in solving prior art
While big problem, moreover it is possible to remove part COD and phosphorus.
As a kind of perferred technical scheme, multiple groups PP filter material is provided in biomembrane denitrogenation reactor 6, and PP filter material is
Porous irregular formed body, and the surface enrichment of PP filter material has biological nitration bacterium and denitrifying bacterium.Due to PP filter material it is porous not
Regular shape while with enough mechanical strengths, also has the life that biomembrane adhesion is good, specific gravity is moderate, surface is adhered to
Object nitrifier and denitrifying bacterium density are high, are able to carry out efficient denitrification.
As a kind of perferred technical scheme, sludge circulation recycles in reactor 9 and is provided with oxidant and beta glucan
Enzyme.1,4 beta-glucanase is imported in oxidant can make it have higher activity function, and using it to organic matter package
Iron sludge is modified, and the ferric iron activity that can promote in sludge is promoted, to meet the requirement that process cycles utilize.
As a kind of perferred technical scheme, sludge circulation recycles reactor 9 to be provided with for being discharged containing Fe3+Modification
The liquid outlet of ferrous solution and solid outlet for organic sludge to be discharged, wherein liquid outlet and pre-treatment and activation reactor 1
Connection.
The invention also discloses a kind for the treatment of process of advanced treatment apparatus for printing and dyeing wastewater, include the following steps：
Dyeing waste water is pumped into pre-treatment and activation reactor 1 by step 1, with the HY curing agent in pre-treatment and activation reactor 1
And Fe3+Sufficiently reaction, obtains the first intermediate product, specifically, the HY in dyeing waste water and pre-treatment and activation reactor 1 is solidified
Agent and Fe3+It carries out that 2-3h is sufficiently stirred, sufficiently changes the organic constitution in dyeing waste water, chain rupture open loop pretreatment occurs, mentions
B/C value in high dyeing waste water；
Step 2, the first intermediate product for obtaining step 1 pass through advanced treatment reactor 2, with advanced treatment reactor 2
In oxidant reaction, removal the first intermediate product in coloration and remove part COD and phosphorus substance, obtain the second intermediate product
And sludge；
Step 3, the second intermediate product for obtaining step 2 pass through A/O method reactor 4, by anoxic/aerobic nitrogen removal technique
The COD and nitrogen substance in the second intermediate product are removed, third intermediate product and sludge are obtained；
Step 4, the third intermediate product for obtaining step 3 pass through biomembrane denitrogenation reactor 6, and efficient by PP filter material
Nitrogen substance remaining in third intermediate product is removed, clear liquid is ultimately formed, is discharged.
As a kind of perferred technical scheme, further include step 5, step 2 and the finally obtained sludge of step 3 are passed through de-
Water dispenser 8 carries out dehydration concentration, and the sludge modifying process of reactor 9 is recycled eventually by sludge circulation, specifically, will
The sludge centralized collection that step 2 and step 3 obtain carries out unified storage and processing into sewage sludge storage pond 7.It is obtained by step 5
Substance include inorganic iron cement and organic sludge, wherein inorganic iron cement its activity it is higher, meet cycling and reutilization requirement, pass through
Pipeline is connected in pre-treatment and activation reactor 1, remaining inorganic iron cement can directly carry out boiler burning disposal.
As a kind of perferred technical scheme, the advanced treating of step 2 carries out in acid condition.
As a kind of perferred technical scheme, the substance formed after step 2 reaction is sunk in the first sedimentation basin 3
It forms sediment, and acid of the alkali to be added in 2 reaction process of neutralization procedure is added in the first sedimentation basin 3.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation be not intended to limit the utility model although the utility model has been disclosed with preferred embodiment as above, it is any ripe
Professional and technical personnel is known, is not being departed within the scope of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment for being modified or being modified to equivalent variations, but all without departing from technical solutions of the utility model
Hold, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, still
It is within the scope of the technical solutions of the present invention.
Claims (6)
1. a kind of advanced treatment apparatus for printing and dyeing wastewater, which is characterized in that including sequentially connected pre-treatment and activation reactor（1）,
Advanced treatment reactor（2）, A/O method reactor（4）, biomembrane denitrogenation reactor（6）, wherein the advanced treatment reactor
（2）With the A/O method reactor（4）It is separately connected and is provided with the first sedimentation basin（3）With the second sedimentation basin（5）, and described first
Sedimentation basin（3）With second sedimentation basin（5）Pass through dewaterer（8）Dehydration concentration is carried out, and eventually by sludge circulation
Recycle reactor（9）Sludge modifying process.
2. advanced treatment apparatus for printing and dyeing wastewater according to claim 1, which is characterized in that the pre-treatment and activation reactor
（1）It is provided with feeding port, for launching HY curing agent and Fe3+。
3. advanced treatment apparatus for printing and dyeing wastewater according to claim 1, which is characterized in that the advanced treatment reactor
（2）Inside it is provided with the oxidant for oxidation reaction to occur with dyeing waste water.
4. advanced treatment apparatus for printing and dyeing wastewater according to claim 1, which is characterized in that the biomembrane denitrogenation reactor
（6）It is inside provided with multiple groups PP filter material, and the PP filter material is porous irregular formed body, and the surface enrichment of the PP filter material has
Biological nitration bacterium and denitrifying bacterium.
5. advanced treatment apparatus for printing and dyeing wastewater according to claim 1, which is characterized in that the sludge circulation recycles anti-
Answer device（9）Inside it is provided with oxidant and 1,4 beta-glucanase.
6. advanced treatment apparatus for printing and dyeing wastewater according to claim 1, which is characterized in that the sludge circulation recycles anti-
Answer device（9）It is provided with for being discharged containing Fe3+Modification ferrous solution liquid outlet and solid outlet for organic sludge to be discharged,
Wherein, the liquid outlet and the pre-treatment and activation reactor（1）Connection.
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| CN201820341827.2U CN208104170U (en) | 2018-03-13 | 2018-03-13 | A kind of advanced treatment apparatus for printing and dyeing wastewater |
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| CN201820341827.2U CN208104170U (en) | 2018-03-13 | 2018-03-13 | A kind of advanced treatment apparatus for printing and dyeing wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108191173A (en) * | 2018-03-13 | 2018-06-22 | 江苏艾特克环境工程有限公司 | A kind of advanced treatment apparatus for printing and dyeing wastewater and its treatment process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108191173A (en) * | 2018-03-13 | 2018-06-22 | 江苏艾特克环境工程有限公司 | A kind of advanced treatment apparatus for printing and dyeing wastewater and its treatment process |
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Granted publication date: 20181116 Termination date: 20210313 |