CN205347139U - Printing and dyeing wastewater treatment system - Google Patents
Printing and dyeing wastewater treatment system Download PDFInfo
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- CN205347139U CN205347139U CN201620016161.4U CN201620016161U CN205347139U CN 205347139 U CN205347139 U CN 205347139U CN 201620016161 U CN201620016161 U CN 201620016161U CN 205347139 U CN205347139 U CN 205347139U
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- membrane bioreactor
- printing
- pond
- aeration tank
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Abstract
The utility model discloses a printing and dyeing wastewater treatment system, including the equalizing basin of connecting sewage port, with the equalizing basin consecutive connect be used for adding sedimentation tank, aeration tank and the clean water basin that the medicine deposits, the discharge to reach standard mouth is connected to the clean water basin, still include membrane bioreactor, be used for secondary precipitation's no. 2 sink ponds, be used for carrying out the air -blower of blast air, the recovery subassembly of the recovery processing that is used for going on retrieving to the water after handling to aeration tank and membrane bioreactor, aeration tank connection membrane bioreactor, membrane bioreactor connect two heavy ponds respectively and retrieve the subassembly, and recovery subassembly and clean water basin are connected respectively to two heavy ponds, and aeration tank and membrane bioreactor are connected respectively to the air -blower. The beneficial effects of the utility model are that: adopted this system to handle the back to printing and dyeing sewage, the final waste water that not only produces is few, can retrieve to most waste water and mud moreover and recycle, has reached energy saving and emission reduction's effect.
Description
Technical field
This utility model relates to a kind of Waste Water Treatment, particularly relates to a kind of printing and dyeing wastewater treatment system.
Background technology
Dyeing waste water refers to cotton, hair, the natural fibers such as chemical fibre and chemical fibre textile product are in drift refining, dyeing, produced waste water in stamp and arrangement process, dyeing is industrial wastewater discharge rich and influential family, it is big that dyeing waste water has the water yield, organic pollution content is high, colourity is deep, alkalescence is big, the features such as change of water quality, belong to intractable industrial wastewater, the printing and dyeing industry dyestuff owing to using, auxiliary agent is different, in the dyeing waste water of each factory discharge, pollutant character and quantity also differ widely, therefore the groundwater pollution control of dyeing waste water is also varied, but existing treatment of dyeing wastewater is simply simple starts with from process to discharge standard aspect, without considering how cycling and reutilization.
Utility model content
This utility model provides a kind of printing and dyeing wastewater treatment system, solves above-mentioned Problems existing.
This utility model is to be realized by following technical scheme:
A kind of printing and dyeing wastewater treatment system, including the regulating reservoir connecting sewage mouth, the sedimentation tank for dosing precipitation connect it is sequentially connected with regulating reservoir, Aeration tank and clear water reserviors, clear water reserviors connect qualified discharge mouth, it is characterized in that, also include membrane bioreactor, second pond for secondary precipitation, for Aeration tank and membrane bioreactor being carried out the aerator of air blast, for the recovery assembly to the recycling that the water after processing reclaims, described Aeration tank junctional membrane bioreactor, membrane bioreactor connects second pond respectively and reclaims assembly, second pond connects recovery assembly and clear water reserviors respectively, aerator connects Aeration tank and membrane bioreactor respectively.
Above-mentioned a kind of printing and dyeing wastewater treatment system, it is characterised in that described recovery assembly includes the flotation tank, tank, sandfiltration pot and the reuse tank that are sequentially connected with, described flotation tank junctional membrane bioreactor and second pond.
Above-mentioned a kind of printing and dyeing wastewater treatment system, it is characterized in that, described sedimentation tank, second pond and flotation tank are provided with mud discharging mouth, also include sludge-tank and pressure mud machine room, the mud discharging mouth of described sedimentation tank and second pond connects pressure mud machine room, the mud discharging mouth of described flotation tank connects sludge-tank, and described sludge-tank connects pressure mud machine room.
Above-mentioned a kind of printing and dyeing wastewater treatment system, it is characterised in that also including backwash bucket, described membrane bioreactor is connected with the circulation of backwash bucket.
The beneficial effects of the utility model are: have employed after dyeing and printing sewage processes by native system, the final waste water not only produced is few, and can be recycled recycling for most waste water and mud, has reached the effect of energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is described further.
Referring to Fig. 1, a kind of printing and dyeing wastewater treatment system, including the regulating reservoir 100 connecting sewage mouth, the sedimentation tank 200 for dosing precipitation connect it is sequentially connected with regulating reservoir 100, Aeration tank 300 and clear water reserviors 400, clear water reserviors 400 connect qualified discharge mouth, also include membrane bioreactor 500, second pond 600 for secondary precipitation, for Aeration tank 300 and membrane bioreactor 500 being carried out the aerator 700 of air blast, for the recovery assembly to the recycling that the water after processing reclaims, Aeration tank 300 junctional membrane bioreactor 500, membrane bioreactor 500 connects second pond 600 respectively and reclaims assembly, second pond 600 connects recovery assembly and clear water reserviors 400 respectively, aerator 700 connects Aeration tank 300 and membrane bioreactor 500 respectively.
Reclaim flotation tank 810, tank 820, sandfiltration pot 830 and reuse tank 840 that assembly includes being sequentially connected with, flotation tank 810 junctional membrane bioreactor 500 and second pond 600.Also including backwash bucket 510, membrane bioreactor 500 is connected with backwash bucket 510 circulation.
Membrane bioreactor 500(MembraneBio-Reactor), it is a kind of new type water treatment technology combined with biological processing unit by film separation unit.
In traditional biological wastewater treatment technology, mud-water separation completes by action of gravity in second pond, and its separation efficiency depends on the settling property of activated sludge, and settleability is more good, and mud-water separation efficiency is more high.And the settleability of mud depends on the operation conditions of Aeration tank, improve sludge settling and must strictly control the operating condition of Aeration tank, which has limited the scope of application of the method.Due to the requirement of second pond solid-liquid separation, the mud of Aeration tank can not maintain higher concentration, is typically in about 1.5 ~ 3.5g/L, thus limiting biochemical reaction rate.Hydraulic detention time (HRT) and sludge age (SRT) interdepend, and improve volumetric loading with reducing sludge loading and often form contradiction.System also creates substantial amounts of excess sludge in running, and its disposal costs accounts for the 25%～40% of sewage treatment plant's operating cost.Traditional active sludge processes system and is also easy to sludge bulking phenomenon occur, and containing suspended solid in water outlet, effluent quality worsens.
For the problems referred to above, the membrane separation technique in separation engineering is organically combined by membrane bioreactor 500 with conventional waste water biologic treating technique, substantially increases solid-liquid separation efficiency；And due to the increase of activated sludge concentration and the appearance of specially good effect bacterium (particularly dominant microflora) in mud in Aeration tank, improve biochemical reaction rate；Meanwhile, excess sludge generation amount (even for 0) is reduced by reducing F/M ratio, thus substantially solving many outstanding problems that traditional activated sludge process exists.
Compared with many traditional biological water treatment technologies, membrane bioreactor 500 has following major advantage:
1, effluent quality high-quality stable
High efficiency separation effect due to film, separating effect is much better than tradition sedimentation tank, process water outlet extremely limpid, float and turbidity are close to zero, antibacterial and virus are significantly removed, effluent quality is better than the miscellaneous domestic water quality standard (CJ25.1-89) that the Ministry of Construction issues, it is possible to carry out reuse directly as non-municipal usage of drinking.
Simultaneously, membrance separation also makes microorganism be dammed in bioreactor completely, make in system, to be able to maintain that higher microorganism concn, not only increase the reaction unit overall removal efficiency to pollutant, ensure that good effluent quality, the various changes of influent load (water quality and the water yield) are had well adapting to property, anti impulsion load by simultaneous reactions device, it is possible to stably obtain the effluent quality of high-quality.
2, excess sludge production is few
This technique can be run under high volumetric loading, low sludge loading, excess sludge production low (can realize zero sludge discharge in theory), reduces Treatment of Sludge expense.
3, floor space is little, is not limited by arranging occasion
Maintaining the microbial biomass of high concentration in bioreactor, process device volumetric loading high, floor space is greatly saved；This technological process is simple, compact conformation, small accommodation area, do not limited by setting place, be suitable for any occasion, ground type, semi-underground type and underground type can be made.
4, ammonia nitrogen and hardly degraded organic substance can be removed
Owing to microorganism is dammed in bioreactor completely, thus being conducive to breeding the growth that retains of the such as nitrobacteria of microorganism slowly, system nitrification efficiency is improved.Meanwhile, the Organic substance of some difficult degradations hydraulic detention time in systems can be increased, be conducive to the raising of hardly degraded organic substance degradation efficiency.
5, convenient operation and management, it is easy to accomplish automatically control
This technique achieves being kept completely separate of hydraulic detention time (HRT) and sludge retention time (SRT), run and control to stablize more flexibly, it is the new technique easily realizing equipmentization in sewage disposal, it may be achieved microcomputer automatic control, so that operation management is more convenient.
6, it is prone to transform from traditional handicraft
This technique as the advanced treatment unit of traditional waste water treatment process, can have broad application prospects in fields such as secondary municipal wastewater treatment plant water outlet advanced treating (thus realizing a large amount of reuses of municipal sewage).
The air-flotation process method that flotation tank 810 adopts is exactly logical people's air in waste water, and precipitate out from water with micro-bubble form and to become carrier, the polluters such as the oil emulsion in waste water, small particle are made to stick on bubble, the water surface is floated to bubble, form foam one gas and water, granule (oil) three-phase mixture, reach to separate impurity, purify the purpose of waste water by collecting foam or scum silica frost.Floatation is mainly used to process the small particle that the oil emulsion leaning on natural subsidence or floating to be difficult to remove in waste water or relative density are close to 1.
Owing in water-purifying process, the sedimentation method have been continued to use for many years, people select By Bubble-floating Method naturally to compare with the sedimentation method.In fact, two kinds of methods differ from one another, and its technical economic analysis is as follows:
Dissolved air flotation should be adopted for light easily floating impurity；The sedimentation method should be adopted for closely knit heavy impurity.Usually by the flco formed after dispensing, hybrid reaction, when ascent rate is faster than precipitation, then select By Bubble-floating Method as well.Because By Bubble-floating Method floor space little (being only the 1/8 1 1/2 of the sedimentation method), pool volume is also little (being only the 1/8-1/4 of the sedimentation method), after process, effluent quality is good, not only turbidity and SS is low and dissolved oxygen high, the mud that the scum silica frost moisture content of discharge is discharged well below the sedimentation method.General sludge volume ratio is for 1/10-1/2, and this gives processing further and dispose and both having brought bigger convenience of mud, has saved again expense.Some waste water, simultaneously containing the impurity that can sink, can float, is used alone air supporting or sedimentation effect is all undesirable.Now precipitation can be combined with air supporting, play respective advantage, not only can improve treatment effect, and reduce investment outlay and operating cost.
Production practices show, flotation tank not only except color, go turbid on be better than sedimentation tank, and all show extremely unique advantage in reducing the COD of contaminant water, lignin and extraction oxygen etc., its cost is also low than horizontal sedimentation tank, tube settler, waterpower or mechanical accelerating purifying pool, and its operating cost is also lower slightly.
Overall operation specifically comprises the processes of: plant effluent drains into regulating reservoir 100, sedimentation tank 200 is entered through sewage pump, precipitation supernatant is from flowing to Aeration tank 300 and membrane bioreactor 500, the a part of multiparity water pump of membrane bioreactor 500 water outlet is evacuated to flotation tank 810, and flotation tank 810 water outlet is through pump to tank 820, sandfiltration pot 830 and the last recycling of reuse tank 840.A part is from flowing to second pond 600, and a second pond 600 water outlet part enters flotation tank 810, and a part is entered clear water reserviors 400 and discharged.And in this process, Aeration tank 300 and membrane bioreactor 500 aeration are supplied by aerator 700, the compression air of flotation tank 810 is supplied by dissolving.
Sedimentation tank 200, second pond 600 and flotation tank 810 are provided with mud discharging mouth, also include sludge-tank 910 and pressure mud machine room 920, the mud discharging mouth of sedimentation tank 200 and second pond 600 connects pressure mud machine room 920, and the mud discharging mouth of flotation tank 810 connects sludge-tank 910, and sludge-tank 910 connects pressure mud machine room 920.Mud produced by sedimentation tank 200, second pond 600 and flotation tank 810 finally all flows in pressure mud machine room 920 and carries out repoussage recycling.
The beneficial effects of the utility model are: have employed after dyeing and printing sewage processes by native system, the final waste water not only produced is few, and can be recycled recycling for most waste water and mud, has reached the effect of energy-saving and emission-reduction.
Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; simply principle of the present utility model described in above-described embodiment and description; under the premise without departing from this utility model spirit and scope, this utility model also has various changes and modifications, and these changes and improvements both fall within claimed scope of the present utility model.The protection domain that this utility model requires is defined by appending claims and equivalent thereof.
Claims (4)
1. a printing and dyeing wastewater treatment system, including the regulating reservoir connecting sewage mouth, the sedimentation tank for dosing precipitation connect it is sequentially connected with regulating reservoir, Aeration tank and clear water reserviors, clear water reserviors connect qualified discharge mouth, it is characterized in that, also include membrane bioreactor, second pond for secondary precipitation, for Aeration tank and membrane bioreactor being carried out the aerator of air blast, for the recovery assembly to the recycling that the water after processing reclaims, described Aeration tank junctional membrane bioreactor, membrane bioreactor connects second pond respectively and reclaims assembly, second pond connects recovery assembly and clear water reserviors respectively, aerator connects Aeration tank and membrane bioreactor respectively.
2. a kind of printing and dyeing wastewater treatment system as claimed in claim 1, it is characterised in that described recovery assembly includes the flotation tank, tank, sandfiltration pot and the reuse tank that are sequentially connected with, described flotation tank junctional membrane bioreactor and second pond.
3. a kind of printing and dyeing wastewater treatment system as claimed in claim 2, it is characterized in that, described sedimentation tank, second pond and flotation tank are provided with mud discharging mouth, also include sludge-tank and pressure mud machine room, the mud discharging mouth of described sedimentation tank and second pond connects pressure mud machine room, the mud discharging mouth of described flotation tank connects sludge-tank, and described sludge-tank connects pressure mud machine room.
4. a kind of printing and dyeing wastewater treatment system as described in claim 1 or 3, it is characterised in that also including backwash bucket, described membrane bioreactor is connected with the circulation of backwash bucket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620016161.4U CN205347139U (en) | 2016-01-07 | 2016-01-07 | Printing and dyeing wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620016161.4U CN205347139U (en) | 2016-01-07 | 2016-01-07 | Printing and dyeing wastewater treatment system |
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| CN205347139U true CN205347139U (en) | 2016-06-29 |
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| CN201620016161.4U Expired - Fee Related CN205347139U (en) | 2016-01-07 | 2016-01-07 | Printing and dyeing wastewater treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417896A (en) * | 2016-01-07 | 2016-03-23 | 嘉兴瑞奕环保科技有限公司 | Printing and dyeing wastewater treatment system |
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2016
- 2016-01-07 CN CN201620016161.4U patent/CN205347139U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417896A (en) * | 2016-01-07 | 2016-03-23 | 嘉兴瑞奕环保科技有限公司 | Printing and dyeing wastewater treatment system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20190107 |