CN203890199U - Printing and dyeing wastewater treatment device - Google Patents

Printing and dyeing wastewater treatment device Download PDF

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Publication number
CN203890199U
CN203890199U CN201420303338.XU CN201420303338U CN203890199U CN 203890199 U CN203890199 U CN 203890199U CN 201420303338 U CN201420303338 U CN 201420303338U CN 203890199 U CN203890199 U CN 203890199U
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China
Prior art keywords
tank
water
tube type
type filter
printing
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Expired - Fee Related
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CN201420303338.XU
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Chinese (zh)
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陈凯
陈虹
裴乃五
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ZHEJIANG HONGDA SPECIAL RUBBER PRODUCTS CO Ltd
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ZHEJIANG HONGDA SPECIAL RUBBER PRODUCTS CO Ltd
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Abstract

The utility model relates to a printing and dyeing wastewater treatment device. The treatment device comprises a biochemical tank, a first adjustment tank, an iron-carbon micro-electrolysis aeration tank, a second adjustment tank, a sedimentation tank and a tubular microfiltration cross-flow filtration device, wherein a wastewater inlet is formed in the biochemical tank, a water outlet of the biochemical tank is connected with a water inlet of the first adjustment tank, a water outlet of the first adjustment tank is connected with a water inlet of the iron-carbon micro-electrolysis aeration tank, a water outlet of the iron-carbon micro-electrolysis aeration tank is connected with a water inlet of the second adjustment tank, a water outlet of the second adjustment tank is connected with a water inlet of the sedimentation tank, a water outlet of the sedimentation tank is connected with a water inlet of the tubular microfiltration cross-flow filtration device. According to the printing and dyeing wastewater treatment device, by arranging the iron-carbon micro-electrolysis aeration tank and tubular microfiltration cross-flow filtration device, the COD and chromaticity color are reduced by virtue of the iron-carbon micro-electrolysis instead of flocculants and multi-stage sedimentation, and the use of flocculants and secondary pollution of to-be-treated water are reduced; since the traditional multi-stage sedimentation and adsorption method are replaced by the tubular microfiltration cross-flow filtration device, on the one hand, the occupation area is reduced, on the other hand, the use of the adsorbent is reduced, and thus the cost is reduced.

Description

Printing and dyeing wastewater processing equipment
Technical field
The utility model belongs to technical field of waste water processing, specifically a kind of printing and dyeing wastewater processing equipment.
Background technology
The dyeing waste water of dyeing discharge is one of major polluting sources in China's industrial system, and dyeing waste water belongs to the organic wastewater that contains a certain amount of recalcitrant substance.Its Pollutant levels high (COD), colourity is dark, is one of unmanageable trade effluent.Treatment method of printing and dying wastewater is broadly divided into biological process, chemical method, the large class of physico-chemical processes 3.But due to dyeing waste water complicated component, single treatment process often can not reach desirable treatment effect, mostly adopt in actual applications the combination of several method to complete the thorough processing to dyeing waste water.Current domestic printing and dyeing wastewater treatment system generally adopts materialization processing+biochemical treatment apparatus, if more complicated but process water water quality, the COD in water outlet, colourity and salinity are all higher, and discharge water cannot meet the requirement of environmental protection.Chinese invention patent < < printing and dyeing wastewater treatment system > > if the patent No. is CN200910031911.X, is comprised of equalizing tank, lift pump, coagulation system, preliminary sedimentation tank, catalytic oxidation settling system, sand filter, activated carbon adsorption tank, sludge pump, nine parts of sludge thickener.This printing and dyeing wastewater treatment system has adopted coagulation, catalytic oxidation, sand filtration and charcoal absorption process integration, after processing coagulation process and biochemical treatment contact oxidation technology, materialization added sand filtration and charcoal absorption advanced treatment process, the dyeing waste water of high density, high chroma is had to reasonable treatment effect, but need multi stage precipitation floor space large, in treating processes, to throw in the chemical assistants such as coagulating agent, coagulant aids, not only cost is high, but also easily causes the secondary pollution of processed water.
Summary of the invention
Technical problem to be solved in the utility model is to provide good, simple to operate, the lower-cost printing and dyeing wastewater processing equipment of a kind for the treatment of effect.
The utility model solves the problems of the technologies described above adopted technical scheme: this printing and dyeing wastewater processing equipment, it is characterized in that: this device comprises biochemistry pool, adjust the first equalizing tank of pH to 2~5, the micro-electrolysis of iron charcoal aeration tank, adjust the second equalizing tank of pH to 7~9, settling tank and tube type filter membrance cross-flow filtration device, biochemistry pool is provided with dyeing waste water water-in, the water outlet of biochemistry pool is connected with the water-in of the first equalizing tank, the water outlet of the first equalizing tank is connected with the water-in of the micro-electrolysis of iron charcoal aeration tank, the water outlet of the micro-electrolysis of iron charcoal aeration tank is connected with the water-in of the second equalizing tank, the water outlet of the second equalizing tank is connected with the water-in of settling tank, the water outlet of settling tank is connected with the water inlet of tube type filter membrance cross-flow filtration device, tube type filter membrance cross-flow filtration device is provided with pure water inlet, more than connect and be pipeline connection.
As improvement, described tube type filter membrance cross-flow filtration device comprise film pipe, in film pipe, increase hydraulic pressure topping-up pump, be arranged on the tube type filter membrance with function that can back flushing in film pipe, described tube type filter membrance is that the microfiltration membrane made by polyvinylidene difluoride (PVDF) material is embedded in the porous skeleton of being made by polyethylene or polyvinylidene difluoride (PVDF) and the tube type filter membrance forming.
As improvement, described tube type filter membrance cross-flow filtration device is provided with thickened waste water out, and thickened waste water out is connected with settling tank by pipeline.
Improve, the bottom of described settling tank is provided with mud relief outlet again, and mud relief outlet is connected with the concentrated slag equipment of pressing of mud.
Improve, the aperture of holding back micropore of described microfiltration membrane can be preferably 0.1 micron again.
Compared with prior art, the utility model has the advantage of: iron charcoal micro-electrolysis aeration tank and tube type filter membrance cross-flow filtration device are set, utilize the method for the micro-electrolysis of iron charcoal to replace original flocculation agent and multi stage precipitation to reduce COD (oxygen-consumption causes mark below 80) and colourity, obviously improve the removal effect of COD and colourity, reduced the use of flocculation agent and the secondary pollution of processed water simultaneously; With tube type filter membrance cross-flow filtration device, replace traditional multi stage precipitation and absorption method, reduced floor space on the one hand, reduced on the other hand the use of sorbent material, thereby reduced use cost.The utility model is rational in infrastructure, has good waste water treatment effect, microfiltration membrane film long service life, feature that maintenance cost is low, and the water quality obtaining after processing reaches reuse water requirement completely, efficiently solves the advanced treatment problem of dyeing waste water.
Accompanying drawing explanation
Fig. 1 is the structural representation of printing and dyeing wastewater processing equipment of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in Figure 1, the printing and dyeing wastewater processing equipment of the present embodiment, this device comprises biochemistry pool, adjust the first equalizing tank of pH to 2~5, the micro-electrolysis of iron charcoal aeration tank, adjust the second equalizing tank of pH to 7~9, settling tank and tube type filter membrance cross-flow filtration device, biochemistry pool is provided with dyeing waste water water-in, the water outlet of biochemistry pool is connected with the water-in of the first equalizing tank, the water outlet of the first equalizing tank is connected with the water-in of the micro-electrolysis of iron charcoal aeration tank, the water outlet of the micro-electrolysis of iron charcoal aeration tank is connected with the water-in of the second equalizing tank, the water outlet of the second equalizing tank is connected with the water-in of settling tank, the water outlet of settling tank is connected with tube type filter membrance cross-flow filtration device, more than connect and be pipeline connection, described tube type filter membrance cross-flow filtration device comprises film pipe, be arranged on tube type filter membrance and the topping-up pump with function that can back flushing in film pipe, described tube type filter membrance cross-flow filtration device comprise film pipe, in film pipe, increase hydraulic pressure topping-up pump, be arranged on the tube type filter membrance with function that can back flushing in film pipe, described tube type filter membrance is that the microfiltration membrane made by polyvinylidene difluoride (PVDF) material is embedded in the porous skeleton of being made by polyethylene or polyvinylidene difluoride (PVDF) and the tube type filter membrance forming, the method of inlaying for being full of the microfiltration membrane material forming through inversion of phases in polyethylene or polyvinylidene difluoride (PVDF) porous skeleton, this structure had both guaranteed the aperture uniformity of microfiltration membrane pipe, can guarantee again the firm and durability of microfiltration membrane material, have with support frame bonding strength high, high pressure resistant, the advantage such as be difficult for peeling off, thereby extend the work-ing life of film and reduce film maintenance cost, described tube type filter membrance cross-flow filtration device has function that can back flushing, be that water purification is penetrated into inside under pressure by film pipe outside, can remove the particle being mounted in fenestra, the water production rate of recovery system, general work carried out back flushing once about one hour, each back flushing is about one minute, to keep the strainability of microfiltration membrane, described tube type filter membrance cross-flow filtration device is provided with thickened waste water out, thickened waste water out is connected with settling tank by pipeline, concentrated waste water after tube type filter membrance cross-flow filtration device is processed enters precipitation process in settling tank, and the water purification obtaining after processing from the pure water inlet of tube type filter membrance cross-flow filtration device discharge for, the bottom of described settling tank is provided with mud relief outlet, and mud relief outlet is connected with the concentrated slag equipment of pressing of mud, the aperture of holding back micropore of described microfiltration membrane can be preferably 0.1 micron.
Below processing treatment process of the present invention is had furtherly, treating processes is such: dyeing waste water is first processed through biochemical, materialization, adding sulfuric acid to adjust pH value is 2~5 again, then carries out the micro-electrolysis of iron charcoal (fully atomization aeration) and processes, and long-chain organic molecule is interrupted.It is 7~9 that water outlet adds sodium hydroxide to adjust pH value again, generates the Fe (OH) with good flocculation and adsorption effect 2and Fe (OH) 3, reach effective flocculation and precipitation.Can enter tube type filter membrance cross flow filter system and carry out concentration, because microfiltration membrane cross flow filter system can be accepted the solids content up to 5%, and the high turbidity cycle water of 20NTU, save settling tank floor space, reduce cost and water resource waste.In film pipe, the aperture of holding back micropore of microfiltration membrane is 0.1 micron, makes effluent quality can reach reuse water standard, realizes recycling of dyeing waste water.In tube type filter membrance cross-flow filtration device, film pipe is inner, high flow velocity (3~4.5 meter per second) can be taken away solia particle with cross-flow, therefore can not form accumulation or the fouling of particulate on film surface, reduce the situation that fenestra gets clogged, thereby make system there is higher and stable flux, extend the work-ing life of film simultaneously, due to the inserted film distributed architecture of tube type filter membrance, be embedded in the intraskeletal pvdf membrane of microporous PE (or PVDF) and can not come off, so system allows back flushing.Cross flow filter system general work carried out back flushing once about 0.5~1 hour, and each back flushing is about 10~20 seconds.When back flushing cannot recover in the situation of water flux, microfiltration membrane pipe allows to adopt 5~15%NaClO strong oxidizer+1~3%NaOH to soak, and removes the organic contamination of film pipe, can recover normal water outlet.
After implementing, adopt the water obtaining after native system treatment of dyeing and printing, its water quality reaches reuse water requirement, colourity≤25, CODMn≤80, total hardness (CaCO3 meter)≤400mg/L, transparency >=30, pH value 6-9, SS (granularity standard)≤30mg/L, iron: 0.2-0.3mg/L, manganese≤0.2mg/L.
Mesophytization treatment process of the present invention: wastewater biological method of chemical treatment is called for short " wastewater biochemical method ", refer to and pass through artificial aeration, and utilize the metabolism of microorganism, make to be in waste water and dissolve and the organic pollutant of colloidal state is converted into innoxious substance, to realize the method for purification.Can be divided into aerobiont facture and Anaerobic biotreatment method.
Biochemical treatment generally includes two important elements: 1. a large amount of aeration oxygen supplys in water, and to support the survival of microorganism.2. utilize microorganism to decompose the organism in sewage, thereby purify waste water.Biochemical treatment is the core of most of traditional waste water treatment process, and the most of municipal wastewaters of China are processed field and all adopted biochemical processing to process city resident's sanitary sewage.
In the present invention, anaerobic waste water biological treatment refers to: anaerobic waste water biological treatment claims again " anaerobic digestion ", is to utilize anaerobion with the organic pollutant in degrading waste water, makes the method for purification of waste water.Its mechanism be under the effect of anaerobic bacterium by the organic substance decomposing in mud, finally produce the gases such as methane and carbon dioxide.
The bright middle waste water aerobiont facture of this limit refers to: waste water aerobiont facture is the organic pollutant utilizing in aerobic microorganism (being mainly aerobic bacteria) Decomposition Wastewater, makes the innoxious treatment process of waste water.Its mechanism is, after waste water is with microorganism contact, the dissolved organic matter in water sees through the cell walls of bacterium and cytolemma and is absorbed and enters in thalline; Colloid and suspension organism are attracted to thalline surface, by the exoenzyme of bacterium, are decomposed into after deliquescent material, also enter in thalline.These organism are by the oxidized degraded of catabolic process in thalline, and the energy of generation is for the needs of bacterium vital movement; Part intermediate oxidation product becomes new cellular material by anabolism, makes bacterium be able to growth and breeding.The final product of processing is the stable inorganicss such as carbonic acid gas, water, ammonia, vitriol and phosphoric acid salt.During processing, supply with microorganism with the nutrition source of sufficient oxygen and various necessity as elements such as carbon, nitrogen, phosphorus and potassium, magnesium, calcium, sulphur, sodium; Should control the life condition of microorganism, as pH is preferably 6.5~9, water temperature is preferably 10~35 ℃ etc. simultaneously.Main method has activated sludge process, biomembrance process, oxidation pond process etc.
Above-mentioned materialization is processed: refer to waste water physicochemical processing, materialization processing refers to the method that the comprehensive action of utilization physics and chemistry is purified waste water.And physical chemistry processing and physical treatment, chemical treatment are combined into three kinds of modes that broad sense waste water physicochemical is processed.It can be both treatment system independently that physical chemistry is processed, and can be also the subsequent disposal measure of biochemical treatment.Water quality requirement, processing costs of waste water quality, discharge or recycling etc. depended in the selection of its technique.For removing chemical coagulation one precipitation that suspension and pollutent that dissolve adopt and the bi-level treatment of charcoal absorption, it is exactly more typical a kind of physical chemistry treatment system.

Claims (5)

1. a printing and dyeing wastewater processing equipment, it is characterized in that: this device comprises biochemistry pool, adjust the first equalizing tank of pH to 2~5, the micro-electrolysis of iron charcoal aeration tank, adjust the second equalizing tank of pH to 7~9, settling tank and tube type filter membrance cross-flow filtration device, biochemistry pool is provided with dyeing waste water water-in, the water outlet of biochemistry pool is connected with the water-in of the first equalizing tank, the water outlet of the first equalizing tank is connected with the water-in of the micro-electrolysis of iron charcoal aeration tank, the water outlet of the micro-electrolysis of iron charcoal aeration tank is connected with the water-in of the second equalizing tank, the water outlet of the second equalizing tank is connected with the water-in of settling tank, the water outlet of settling tank is connected with the water inlet of tube type filter membrance cross-flow filtration device, tube type filter membrance cross-flow filtration device is provided with pure water inlet, more than being connected to pipeline or channel connects.
2. printing and dyeing wastewater processing equipment according to claim 1, it is characterized in that: described tube type filter membrance cross-flow filtration device comprise film pipe, in film pipe, increase hydraulic pressure topping-up pump, be arranged on the tube type filter membrance with function that can back flushing in film pipe, described tube type filter membrance is that the microfiltration membrane made by polyvinylidene difluoride (PVDF) material is embedded in the porous skeleton of being made by polyethylene or polyvinylidene difluoride (PVDF) and the tube type filter membrance forming.
3. printing and dyeing wastewater processing equipment according to claim 2, is characterized in that: described tube type filter membrance cross-flow filtration device is provided with thickened waste water out, and thickened waste water out is connected with settling tank by pipeline.
4. according to the printing and dyeing wastewater processing equipment described in claim 1 or 2 or 3, it is characterized in that: the bottom of described settling tank is provided with mud relief outlet, mud relief outlet is connected with the concentrated slag equipment of pressing of mud.
5. according to printing and dyeing wastewater processing equipment described in claim 1 or 2 or 3, it is characterized in that: the aperture of holding back micropore of described microfiltration membrane is 0.1 micron.
CN201420303338.XU 2014-05-27 2014-05-27 Printing and dyeing wastewater treatment device Expired - Fee Related CN203890199U (en)

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CN201420303338.XU CN203890199U (en) 2014-05-27 2014-05-27 Printing and dyeing wastewater treatment device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107973487A (en) * 2017-11-14 2018-05-01 东华大学 A kind of dyeing and finishing wastewater level treatment process and device
CN108314273A (en) * 2018-04-18 2018-07-24 北京吉工科技有限公司 A kind of sewage disposal device and sewage water treatment method
CN112194290A (en) * 2020-06-30 2021-01-08 广州中科建禹环保有限公司 Physicochemical treatment system and method for cosmetic production waste liquid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107973487A (en) * 2017-11-14 2018-05-01 东华大学 A kind of dyeing and finishing wastewater level treatment process and device
CN108314273A (en) * 2018-04-18 2018-07-24 北京吉工科技有限公司 A kind of sewage disposal device and sewage water treatment method
CN112194290A (en) * 2020-06-30 2021-01-08 广州中科建禹环保有限公司 Physicochemical treatment system and method for cosmetic production waste liquid

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141022

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CF01 Termination of patent right due to non-payment of annual fee