CN203976586U - Printing and dyeing wastewater treatment system - Google Patents
Printing and dyeing wastewater treatment system Download PDFInfo
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- CN203976586U CN203976586U CN201420362164.4U CN201420362164U CN203976586U CN 203976586 U CN203976586 U CN 203976586U CN 201420362164 U CN201420362164 U CN 201420362164U CN 203976586 U CN203976586 U CN 203976586U
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Abstract
It is a kind of energy-efficient that the utility model provides, and makes the printing and dyeing wastewater treatment system of printing and dyeing wastewater to reach standard discharge.Printing and dyeing wastewater treatment system described in the utility model comprises adjusting neutralization tank, electrolyzer, coagulative precipitation tank, hydrolysis acidification pool, biological contact oxidation pond, sand filter, charcoal canister.The utility model is by the processing of this system; dyeing waste water indices reaches or is better than the first discharge standard specifying in it " textile dyeing and finishing industrial water pollution thing emission standard " of National Standard of the People's Republic of China GB4287-2008; alleviate the serious deficient problem of China's water resources, to protection of the environment, maintain the eubiosis and play an important role.
Description
Technical field
The utility model relates to environmental technology field, relates in particular to a kind of pollution abatement system, specifically refers to a kind of printing and dyeing wastewater treatment system.
Background technology
Textile and dyeing industry has one of conventional column industry of advantage as China, since the nineties in 20th century, obtained fast development, and its water consumption and water displacement also increase substantially.According to incompletely statistics, China's day discharge dyeing waste water amount is 3000-4000kt, is one of blowdown rich and influential family in every profession and trade.Compare with developed country, the unit water consumption of china textile dyeing industry is 2-3 times of developed country, and unit total amount of pollutants discharged is 1.2-1.8 times of developed country.Strengthen the processing of dyeing waste water and can alleviate the serious deficient problem of China's water resources, to protection of the environment, maintain the eubiosis and play an important role.
But treatment of dyeing wastewater faces following problem:
1, the increasingly stringent of emission standard.Along with the raising of socioeconomic development and people's Environmental awareness, China has strengthened the improvement to dyeing and printing sewage.Be not difficult to find out from " textile dyeing and finishing industrial water pollution thing emission standard ", except III class sewage discharge index change little, the discharge that the indexs such as l class and II class dyeing waste water BOD, COD, colourity, suspended substance, ammonia nitrogen, phenyl amines, dioxide peroxide have improved in country limits.And dyeing waste water water quality average is COD800-2000mg/L, colourity 200-800 doubly, pH value 10-13, BOD/COD is for O.25-0.4, therefore the qualified discharge of dyeing waste water is dyeing problem in urgent need to solve.
2, dyeing waste water complicated components.Dyeing waste water refers to the composite waste that waste water that in dyeing and printing process process, each operation is discharged mixes.Mainly comprise: destarch, kiering, bleaching, the mercerizing waste water of pretreatment stage (as singe, destarch, kiering, bleaching, mercerising) discharge; The dyeing waste-water of dyeing stage discharge; The printing waste water of stamp stage discharge and the waste water of soaping; The arrangement waste water of arrangement stage discharge.Dyeing waste water water quality is difference to some extent with the difference of starting material, production kind, production technique, level of management, causes the waste water component that gathers after each dyeing process discharge very complicated.Along with the develop rapidly of dyestuffs industries and the progress of rear finishing technique, New-type adjuvant, dyestuff, finishing composition etc. are used in a large number in dyeing, the content of the poisonous organic composition of difficult degradation is also more and more, some or even carcinogenic, mutagenesis, clastogenic organism, the threat to environment especially water surrounding and endanger increasing.In general, the feature of dyeing waste water is that complicated component, organic content are high, colourity is dark, chemical oxygen demand (COD) (COD) height, and biochemical oxygen demand (BOD) (BOD) is relatively low, and biodegradability is poor, and quantity discharged is large.
3, the limitation for the treatment of method of printing and dying wastewater.Before the eighties in last century, the biodegradability of China's dyeing waste water is higher, and CODcr is everlasting below 80Omg/L, adopts traditional biology and materialization joint processing system, and lake water can reach emission standard.Recent two decades comes, and dyeing waste water water quality has a very large change.Traditional treatment method of printing and dying wastewater, as absorption, suspension, filtration, coagulation etc., to have equipment simple, although after the advantage of easy and simple to handle and technical maturity, but this class treatment process is normally transferred to solid phase or gas phase by organism from liquid phase, not only do not eliminate organic pollutant completely, and cause refuse to pile up and secondary pollution; Biological process can only be removed the BOD in dyeing waste water, and for COD, particularly the removal effect of poisonous hardly degraded organic substance and colourity is not obvious.Single treatment process can not meet the requirement of current dyeing waste water development.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of energy-efficient, makes the printing and dyeing wastewater treatment system of printing and dyeing wastewater to reach standard discharge.
The utility model printing and dyeing wastewater treatment system, described printing and dyeing wastewater treatment system comprises adjusting neutralization tank, electrolyzer, coagulative precipitation tank, hydrolysis acidification pool, biological contact oxidation pond, sand filter, charcoal canister, first waste water enter described adjusting neutralization tank, then enter and the electrolyzer that regulates neutralization tank to be connected, after described electrolyzer, coagulative precipitation tank is set, clear liquid after coagulative precipitation tank precipitation and clarification enters hydrolysis acidification pool, after described hydrolysis acidification pool, be provided with biological contact oxidation pond, described biological contact oxidation pond comprises pond body, filler, aerator, described biological contact oxidation pond is connected to sand filter, it after described sand filter, is charcoal canister.
As to further restriction of the present utility model, the mud that described coagulative precipitation tank produces enters sludge thickener, and the mud after concentrated is made into mud cake through plate-and-frame filter press.
The beneficial effects of the utility model are: by the processing of this system, dyeing waste water indices reaches or is better than the first discharge standard specifying in it " textile dyeing and finishing industrial water pollution thing emission standard " of National Standard of the People's Republic of China GB4287-2008; Alleviate the serious deficient problem of China water resources, to protection of the environment, maintain the eubiosis and play an important role.
Brief description of the drawings
Accompanying drawing 1 is the syndeton schematic diagram of the utility model printing and dyeing wastewater treatment system;
As shown in the figure: 1, regulate neutralization tank, 2, electrolyzer, 3, coagulative precipitation tank, 4, hydrolysis acidification pool, 5, biological contact oxidation pond, 6, sand filter, 7, charcoal canister, 8, clean water basin, 9, sludge thickener, 10, plate-and-frame filter press.
Embodiment
Below in conjunction with accompanying drawing 1, the embodiment of the utility model printing and dyeing wastewater treatment system is described in detail below, should be understood that following embodiment is to the utility model most preferred embodiment, conduct is not to restriction of the present utility model.
As shown in Figure 1, the utility model printing and dyeing wastewater treatment system, comprises and regulates neutralization tank, electrolyzer, coagulative precipitation tank, hydrolysis acidification pool, biological contact oxidation pond, sand filter, charcoal canister.
First waste water enter described adjusting neutralization tank, carries out the adjusting of pH, then enters and the electrolyzer that regulates neutralization tank to be connected, under additional power source effect, there is a series of redox reaction, make organism generation chain rupture, organo-functional group changes, and greatly improves the biodegradability of waste water.
After described electrolyzer, coagulative precipitation tank is set, removes most suspended substance at this, and some indissoluble thing and colloidal precipitations of in electrolytic reaction process, forming.The mud that described coagulative precipitation tank produces enters sludge thickener, and the mud after concentrating is made into mud cake through plate-and-frame filter press.
Clear liquid after coagulative precipitation tank precipitation and clarification enters hydrolysis acidification pool.For the higher concentration organic waste water outside sanitary sewage, if directly carry out aerobic treatment, can increase oxygen-supplying amount, cause energy dissipation, according to our engineering experience for many years, before next step aerobic treatment, carry out hydrolysis treatment entering, there is dual function, the one, waste water is carried out to Biological Pretreatment, improve its biochemical, and absorption, a part of organism of degrading; The 2nd, the mud of system is carried out to digestion process.Hydrolysis process utilizes hydrolysis and the souring stage of anaerobic treatment, and abandon producing methane (alkaline fermentation) stage, the main purpose of hydrolysis treatment is to realize the conversion of refractory organic by hydrolysis and non-hydrolytic action, change (open loop by molecular structure, scission of link, cracking, group replaces, reduction etc.), the organic molecule of complex structure difficult for biological degradation is changed into can be at a slow speed or the organism of fast degraded biologically, thereby obviously improve the biological treatment property of sewage, make final electron acceptor(EA) comprise refractory organic (group in molecular structure or chemical bond).Make stable effluent quality, reduce impact load, for aerobic treatment creates conditions, adopt this flow process, better solve SS(suspended substance) problem.Feature is on the other hand all or part of anaerobism section that is back to of excess sludge that aerobic section produces, because anaerobism section has the sufficiently long biosolids residence time (SRT), mud can carry out anaerobic digestion thoroughly in anaerobism section, thereby make excess sludge in working cycle, all be decomposed into H2O and CO2, whole system reaches the mud balance of self, few row or not blowdown mud, reduce the trouble that simple aerobic biochemical sludge output brings greatly effectively.
After described hydrolysis acidification pool, be provided with biological contact oxidation pond, described biological contact oxidation pond comprises pond body, filler, aerator.Biological contact oxidation process is the one of biomembrance process, belongs to aerobic treatment technique.Aerobic biochemical process is microfauna growth and breeding on filling carrier of a class such as microorganism, metazoan of bacterium and mushroom, organism in microorganism panning sewage is as nutrient, organism in adsorption-decomposition function sewage, microorganism is metabolism constantly, keep active, thereby sewage is purified.In the situation that dissolved oxygen and food are all sufficient, microbial reproduction is very rapid, microbial film progressive additive, and the organism in dissolved oxygen and sewage relies on diffusion, is utilized by microorganism.In the time that microbial film reaches certain thickness, oxygen cannot be to microbial film internal divergence, aerobic bacteria death, and facultative bacteria and anerobe start amount reproduction, form anaerobic layer, utilize dead aerobic bacteria for matrix, and constantly breed on this basis anerobe, quantitatively start to decline through after a period of time, add the effusion of metabolism gas, microbial film bulk is come off.The microbial film new at the biofilm surface coming off grows up again, in contact-oxidation pool, because filling surface is long-pending large, so each stage of microbial film development exists, makes to remove organic ability and is stabilized in a level.
Described biological contact oxidation pond is connected to sand filter, filter as the residual colloid in the biological secondary treatment yielding water of removal and the important means of suspended substance, after being placed on biochemical treatment, can regard advanced treatment technology as, also can regard the pre-treatment of gac or ozone even depth treatment technology as.In recent years, owing to having developed the high-rate fitration of multilayer filtrate and having intake and add high-molecular coagulant adopting as flocculating aids in filter tank, filtration velocity (reaching as high as 30m/h) and removal effect have been improved.In waste water physicochemical treatment scheme, will filter as second-stage treatment and replace flotation cell, remove the suspended substance in waste water, its clearance can reach 60%-70%.Add after flocculating aids, clearance can be brought up to more than 90%.
It after described sand filter, is charcoal canister.In charcoal canister, there is the gac that adsorptive power is strong.Absorption method is to utilize porousness solid (as gac, polymeric adsorbent etc.) to contact with waste water from dyestuff, utilizes adsorbent surface activity, by the organism in waste water from dyestuff and adsorption of metal ions and concentrate in its surface, reaches the object of purifying waste water.Gac has stronger adsorptive power, to cationic dyestuff, and substantive dyestuff, the water-soluble dyes such as matching stain, reactive dyestuffs have good adsorption function.
Waste water is after above device, and dyeing waste water becomes clear water and enters clean water basin.Dyeing waste water indices reaches or is better than the first discharge standard specifying in it " textile dyeing and finishing industrial water pollution thing emission standard " of National Standard of the People's Republic of China GB4287-2008, and this system will realize Inlet and outlet water index as shown in table 1, table 2:
table 1 influent quality index
| Sequence number | Pollution factor | Unit | Water inlet index | Detection method |
| 1 | COD Cr | mg/L | 2000 | Dichromate titration |
| 2 | BOD | mg/L | 500 | Dilution inoculation method |
| 3 | Ammonia nitrogen | mg/L | 30 | Distillation and volumetry |
| 4 | SS | mg/L | 300 | Weighting method |
| 5 | pH | ? | 13 | Glass electrode method |
| 6 | Colourity | Doubly | 800 | Extension rate method |
table 2 water outlet emission standard
| Sequence number | Pollution factor | Unit | Water inlet index | Detection method |
| 1 | COD Cr | mg/L | ≤80 | Dichromate titration |
| 2 | BOD | mg/L | ≤20 | Dilution inoculation method |
| 3 | Ammonia nitrogen | mg/L | ≤12 | Distillation and volumetry |
| 4 | SS | mg/L | ≤60 | Weighting method |
| 5 | pH | ? | 6~9 | Glass electrode method |
| 6 | Colourity | Doubly | ≤60 | Extension rate method |
Above embodiment is that 1 pair of best embodiment of the utility model is described by reference to the accompanying drawings, but these explanations can not be understood to limit scope of the present utility model, obviously, under design of the present utility model, still can make a lot of variations.In this explanation, any any change of making under inventive concept of the present utility model all will fall in protection domain of the present utility model.
Claims (2)
1. printing and dyeing wastewater treatment system, it is characterized in that: described printing and dyeing wastewater treatment system comprises adjusting neutralization tank, electrolyzer, coagulative precipitation tank, hydrolysis acidification pool, biological contact oxidation pond, sand filter, charcoal canister, first waste water enter described adjusting neutralization tank, then enter and the electrolyzer that regulates neutralization tank to be connected, after described electrolyzer, coagulative precipitation tank is set, clear liquid after coagulative precipitation tank precipitation and clarification enters hydrolysis acidification pool, after described hydrolysis acidification pool, be provided with biological contact oxidation pond, described biological contact oxidation pond comprises pond body, filler, aerator, described biological contact oxidation pond is connected to sand filter, it after described sand filter, is charcoal canister.
2. printing and dyeing wastewater treatment system according to claim 1, is characterized in that: the mud that described coagulative precipitation tank produces enters sludge thickener, and the mud after concentrating is made into mud cake through plate-and-frame filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420362164.4U CN203976586U (en) | 2014-07-02 | 2014-07-02 | Printing and dyeing wastewater treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420362164.4U CN203976586U (en) | 2014-07-02 | 2014-07-02 | Printing and dyeing wastewater treatment system |
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| CN203976586U true CN203976586U (en) | 2014-12-03 |
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| CN201420362164.4U Expired - Fee Related CN203976586U (en) | 2014-07-02 | 2014-07-02 | Printing and dyeing wastewater treatment system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269795A (en) * | 2016-08-25 | 2017-01-04 | 常州市锦云工业废弃物处理有限公司 | A kind of waste oil paint can continuous high-efficient processing equipment |
| CN106430810A (en) * | 2016-08-26 | 2017-02-22 | 长兴县夹浦污水处理有限公司 | Printing-dyeing textile wastewater and domestic wastewater mixed treatment system |
| CN107381931A (en) * | 2017-06-12 | 2017-11-24 | 河北卓润环境科技有限公司 | Method based on Strong oxdiative and circulation biochemical treatment dyestuff intermediate production waste water |
| CN107601759A (en) * | 2017-08-29 | 2018-01-19 | 绍兴鑫广科技有限公司 | A kind of dyeing and printing sewage multi-stage combination processing system and handling process |
| CN109607967A (en) * | 2019-01-11 | 2019-04-12 | 金娜 | A kind of textile waste processing system |
| CN111675442A (en) * | 2020-06-28 | 2020-09-18 | 潮州市中乾环境科技有限公司 | Low-cost environment-friendly printing and dyeing wastewater treatment process |
-
2014
- 2014-07-02 CN CN201420362164.4U patent/CN203976586U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269795A (en) * | 2016-08-25 | 2017-01-04 | 常州市锦云工业废弃物处理有限公司 | A kind of waste oil paint can continuous high-efficient processing equipment |
| CN106430810A (en) * | 2016-08-26 | 2017-02-22 | 长兴县夹浦污水处理有限公司 | Printing-dyeing textile wastewater and domestic wastewater mixed treatment system |
| CN106430810B (en) * | 2016-08-26 | 2019-12-24 | 长兴县诚泽水务有限公司 | Printing and dyeing textile wastewater and domestic sewage mixed treatment system |
| CN107381931A (en) * | 2017-06-12 | 2017-11-24 | 河北卓润环境科技有限公司 | Method based on Strong oxdiative and circulation biochemical treatment dyestuff intermediate production waste water |
| CN107601759A (en) * | 2017-08-29 | 2018-01-19 | 绍兴鑫广科技有限公司 | A kind of dyeing and printing sewage multi-stage combination processing system and handling process |
| CN109607967A (en) * | 2019-01-11 | 2019-04-12 | 金娜 | A kind of textile waste processing system |
| CN109607967B (en) * | 2019-01-11 | 2021-10-15 | 叶江波 | Textile wastewater treatment system |
| CN111675442A (en) * | 2020-06-28 | 2020-09-18 | 潮州市中乾环境科技有限公司 | Low-cost environment-friendly printing and dyeing wastewater treatment process |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20170702 |
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| CF01 | Termination of patent right due to non-payment of annual fee |