CN220351902U - Treatment system for cleaning wastewater - Google Patents
Treatment system for cleaning wastewater Download PDFInfo
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- CN220351902U CN220351902U CN202320940564.8U CN202320940564U CN220351902U CN 220351902 U CN220351902 U CN 220351902U CN 202320940564 U CN202320940564 U CN 202320940564U CN 220351902 U CN220351902 U CN 220351902U
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- 239000002351 wastewater Substances 0.000 title claims abstract description 96
- 238000004140 cleaning Methods 0.000 title claims abstract description 39
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 69
- 239000000945 filler Substances 0.000 claims description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 25
- 239000010802 sludge Substances 0.000 claims description 25
- 230000003647 oxidation Effects 0.000 claims description 17
- 238000007254 oxidation reaction Methods 0.000 claims description 17
- 239000004576 sand Substances 0.000 claims description 15
- 238000005406 washing Methods 0.000 claims description 15
- 238000000108 ultra-filtration Methods 0.000 claims description 10
- 238000001223 reverse osmosis Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 9
- 238000012545 processing Methods 0.000 abstract description 7
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 22
- 239000003921 oil Substances 0.000 description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 13
- 239000010865 sewage Substances 0.000 description 13
- 238000005273 aeration Methods 0.000 description 9
- 239000012071 phase Substances 0.000 description 8
- 238000007667 floating Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- -1 gravel Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model relates to the technical field of wastewater treatment, in particular to a treatment system for cleaning wastewater. The utility model provides a cleaning wastewater's processing system, includes waste water collecting tank, intermittent type reaction tank, biochemical treatment unit, air supporting pond, the waste water collecting tank intermittent type reaction tank biochemical treatment unit with the air supporting pond communicates in proper order. The intermittent reaction tank is arranged for intermittent quantitative treatment, so that the cost can be reduced, the operation is convenient, the treatment effect is good, and the subsequent treatment requirement can be met. Compared with the prior art, the treatment system for the cleaning wastewater has the advantages that the treatment system for the cleaning wastewater is more stable and comprehensive.
Description
Technical Field
The utility model relates to the technical field of wastewater treatment, in particular to a treatment system for cleaning wastewater.
Background
Products such as automobile parts can produce such as: production wastewater in different working procedures such as production and processing cleaning, assembly cleaning, pretreatment line cleaning before coating, paint spraying water curtain and the like, wherein the processing of automobiles and parts thereof is a link with more wastewater discharge in the automobile manufacturing process. The wastewater contains pollutants such as surfactant, heavy metal ions, oil, phosphate, resin and the like, has high COD value, and can cause serious pollution to the environment if being not properly treated.
The waste water of cleaning liquid generated in the production and processing process of automobile parts and the like contains various pollutants, the components of the waste water are complex, the biodegradability is poor, the waste water has certain toxicity, the CODCr before the treatment can reach 1500mg/L-3500mg/L, the petroleum concentration can reach 100mg/L-200mg/L, and the waste water belongs to high-concentration refractory organic waste water, and the waste water is required to reach the standard after being treated and discharged.
At present, the cleaning wastewater is mainly treated by adopting processes such as coagulating sedimentation, coagulating air flotation, biochemical treatment and the like, and the cleaning wastewater has certain treatment effects, but the stability and the comprehensiveness are not good.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model provides a treatment system for cleaning wastewater, which is sequentially provided with a wastewater collection tank, an intermittent reaction tank, a biochemical treatment unit and an air floatation tank along the direction of the cleaning wastewater, wherein the wastewater collection tank, the intermittent reaction tank, the biochemical treatment unit and the air floatation tank are sequentially communicated through pipelines.
Preferably, the device further comprises a lift pump, wherein the wastewater collection tank is communicated with the batch reaction tank through the lift pump;
and/or a compressed air stirrer is arranged in the wastewater collection tank.
Preferably, one or more of a stirrer, an oil skimming machine, a drainage pump and a sludge pump are arranged in the intermittent reaction tank.
Preferably, the biochemical treatment system is a contact oxidation pond;
and/, one or more of fixed fillers, activated sludge and suspended fillers are arranged in the biochemical treatment unit;
and/or an air floatation air dissolving device is arranged in the air floatation tank.
Preferably, the treatment system of the cleaning wastewater further comprises a water outlet tank, and the water outlet tank is communicated with the air floatation tank.
Preferably, the treatment system of the cleaning wastewater further comprises an intermediate water tank, and the intermediate water tank is communicated with the air floatation tank.
Preferably, the treatment system of the washing wastewater further comprises a sand filter and a reuse water tank, wherein the sand filter is respectively communicated with the intermediate water tank and the reuse water tank.
Preferably, the treatment system of the washing wastewater further comprises an activated carbon filter, and the activated carbon filter is respectively communicated with the sand filter and the reuse water tank.
Preferably, the treatment system of the washing wastewater further comprises an ultrafiltration unit, wherein the ultrafiltration unit is respectively communicated with the activated carbon filter and the reuse water tank.
Preferably, the treatment system of the washing wastewater further comprises a reverse osmosis unit, and the reverse osmosis unit is respectively communicated with the ultrafiltration unit and the reuse water tank.
The utility model has at least one of the following beneficial effects:
1) The intermittent reaction tank is arranged for intermittent quantitative treatment, so that the cost can be reduced, the operation is convenient, the treatment effect is good, and the subsequent treatment requirement can be met.
2) Compared with the prior art, the treatment system for the cleaning wastewater has the advantages that the treatment system for the cleaning wastewater is more stable and comprehensive.
Drawings
Fig. 1 is a schematic view of a system for treating washing wastewater in example 1 of the present utility model.
Fig. 2 is a schematic diagram of a system for treating cleaning wastewater in example 2 of the present utility model.
Reference numerals:
1. waste water collecting tank
2. Batch reaction tank
3. Biochemical treatment unit
4. Air floatation tank
5. Water outlet tank
6. Intermediate water tank
7. Sand filter
8. Reuse water tank
9. Activated carbon filter
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
Please refer to fig. 1 and 2. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
A treatment system of cleaning wastewater is provided with a wastewater collection tank 1, an intermittent reaction tank 2, a biochemical treatment unit 3 and an air floatation tank 4 in sequence along the direction of the cleaning wastewater, wherein the wastewater collection tank 1, the intermittent reaction tank 2, the biochemical treatment unit 3 and the air floatation tank 4 are sequentially communicated through pipelines.
In a preferred embodiment, the device further comprises a lift pump, wherein the wastewater collection tank 1 is communicated with the batch reaction tank 2 through the lift pump; the lift pump belongs to the prior art, and a sewage treatment plant generally adopts a gravity flow method to pass through various structures and equipment in the operation process flow. But due to constraints of plant area topography and geology. A lifting pump station is added at the pretreatment position to lift the sewage to a certain height so as to operate according to the gravity flow method. The sewage lifting pump station has the function of lifting the upstream sewage to the height required by the subsequent treatment unit so as to realize gravity flow.
And/or, a compressed air stirrer is arranged in the waste water collecting tank 1, and the compressed air stirrer belongs to the prior art and can be purchased in the market.
In a preferred embodiment, the batch reactor 2 is provided with one or more of a stirrer, an oil skim pump, a drainage pump and a sludge pump.
In a preferred embodiment, the biochemical treatment unit 3 is a contact oxidation tank; the contact oxidation tank is a biological contact oxidation process, which is a sewage treatment technology originally developed in the 70 th century of the 20 th century, and is essentially that filling filler is filled in a biological reaction tank, and oxygenated sewage submerges all the filler and flows through the filler at a certain flow rate. The filling material is fully covered with the biological film, the sewage is widely contacted with the biological film, organic pollutants in the sewage are removed under the metabolism of microorganisms on the biological film, and the sewage is purified. The biological contact oxidation method is a new biochemical treatment method for wastewater, which has the characteristics of an activated sludge method and a biological membrane method. The main equipment of the method is a biological contact oxidation filter. The aeration Chi Zhongzhuang which is airtight is provided with fillers such as coke, gravel, plastic honeycomb and the like, the fillers are immersed in water, and aeration oxygenation is carried out on the bottoms of the fillers by using a blower, and the mode is called a blower aeration device; air can entrain waste water to be treated from bottom to top, the waste water freely passes through the filter material part to reach the ground, and after the air escapes, the waste water returns to the bottom of the tank from top to bottom in the filter material compartment. Activated sludge is attached to the surface of the filler and does not flow along with water, and the biological film is directly and strongly stirred by the upward airflow and is continuously updated, so that the purifying effect is improved. The biological contact oxidation method has the advantages of short treatment time, small volume, good purification effect, good and stable effluent quality, no need of backflow of sludge, no expansion, low power consumption and the like.
And/, the biochemical treatment unit 3 is provided with one or more of fixed fillers, activated sludge and suspended fillers;
the suspended filler, namely the MBBR technology, has the advantages of the traditional fluidized bed and the biological contact oxidation method, is a novel sewage treatment method, and is characterized in that the carrier is in a fluidized state by virtue of the aeration in an aeration tank and the lifting action of water flow, so that activated sludge growing in a suspended mode and a biological film growing in an attached mode are formed, the whole reactor space is used for the moving bed biological film, the superiority of both the attached phase and the suspended phase organisms is fully exerted, and the advantages and the disadvantages of the attached phase and the suspended phase organisms are increased and compensated. Unlike previous fillers, suspended fillers can frequently come into contact with sewage many times and are therefore known as "moving biofilms". The MBBR process has several advantages: 1. the filler is mainly made of polyethylene, polypropylene, modified materials thereof, polyurethane foam and the like, has a specific gravity close to that of water, mainly takes a cylindrical shape and a spherical shape, is easy to form a film, is not agglomerated, is not blocked, and is easy to take off the film. 2. Because the filler and the water are all moving, the mass transfer among gas, water and solid phase is better, the activity of the biomembrane on the filler is higher, the organic load and the efficiency of the system are improved, and the water quality of the effluent is stable. 3. The MBBR has flexible application, various reactor shapes, compact structure and small occupied area, and only needs 20 percent of the volume of a common oxidation pond under the same load condition. 4. The water head loss is small, the energy consumption is low, the operation is simple, and the operation management is convenient. 5. Microorganisms adhere to the carrier and flow with the water flow so that sludge reflux or circulating back flushing is not required. 6. The biological film naturally drops, and can not cause blockage. 7. The volume of the oxidation pond is small, and the capital investment is reduced. 8. Sludge return equipment may not be required. 9. The sludge yield is low. 10. The MBBR technology does not need a filler bracket and can be directly added. 11 is high in processing load.
In a preferred embodiment, an air floatation air dissolving device is arranged in the air floatation tank 4. The conventional air-float air dissolving equipment consists of an air dissolving pump for dissolving air and water, an air compressor for dissolving air and water, an air dissolving tank and corresponding pipelines. The pressure water and the pressurized air in the dissolved air pool generator form dissolved air water which is distributed into the air floating pool through a delivery pipeline by a releaser arranged in the air floating pool.
In a preferred embodiment, the treatment system of the cleaning wastewater further includes a water outlet tank 5, the water outlet tank 5 is communicated with the air floatation tank 4, and the air floatation tank 4 is a tank which mainly uses a large amount of microbubbles to capture and adsorb fine particle adhesives to float upwards, so as to achieve the effect of solid-liquid separation.
In a preferred embodiment, the treatment system of the cleaning wastewater further comprises an intermediate water tank 6, and the intermediate water tank 6 is communicated with the air floatation tank 4.
In a preferred embodiment, the system for treating the washing wastewater further comprises a sand filter 7 and a reuse water tank 8, wherein the sand filter 7 is respectively communicated with the intermediate water tank 6 and the reuse water tank 8, the sand filter 7 is a prior art, and the sand filter 7 may be a quartz sand filter.
In a preferred embodiment, the system for treating washing wastewater further comprises an activated carbon filter 9, wherein the activated carbon filter 9 is respectively communicated with the sand filter 7 and the reuse water tank 8.
In a preferred embodiment, the system for treating washing wastewater further comprises an ultrafiltration unit, which is in communication with the carbon filter 9 and the reuse water tank 8, respectively.
In a preferred embodiment, the system for treating washing wastewater further comprises a reverse osmosis unit, which is respectively communicated with the ultrafiltration unit and the reuse water tank 8.
Example 1
The utility model provides a cleaning wastewater's processing system, includes waste water collecting tank 1, intermittent type reaction tank 2, biochemical treatment unit 3, air supporting pond 4 and play water tank 5, waste water collecting tank 1 intermittent type reaction tank 2 biochemical treatment unit 3 air supporting pond 4 with play water tank 5 communicates in proper order, be equipped with compressed air agitator in the waste water collecting tank 1, waste water collecting tank 1 with intermittent type reaction tank 2 passes through the elevator pump intercommunication, be equipped with mixer, oil skimming machine, drain pump and dredge pump in the intermittent type reaction tank 2, biochemical treatment system be the contact oxidation pond, throw into suspension filler in the contact oxidation pond, namely MBBR technology. The treatment process of the cleaning wastewater in this embodiment is as follows: the cleaning wastewater generated in a workshop enters a wastewater collection tank 1, the wastewater enters an intermittent reaction tank 2 for treatment through the lifting pump after being regulated and homogenized in the collection tank, the intermittent reaction tank 2 is provided with a stirrer, an oil skimming machine, a drainage pump and a mud pump, the wastewater is demulsified in the intermittent reaction tank 2 by adding sulfuric acid or calcium chloride, so that emulsified oil in the wastewater becomes floating oil and floats on the water surface, then the floating oil is skimmed through the oil skimming machine, the suspended solids are settled and clarified by adding chemical agents PAC and PAM, and the drainage pump is started for drainage after the wastewater is completely treated; the bottom sludge is discharged intermittently into the biochemical treatment unit 3 by a sludge discharge pumping sludge treatment system, the biological treatment unit adopts a contact oxidation process, suspended fillers are added, the suspended fillers are in a fluidization state by virtue of aeration in an aeration tank and lifting action of water flow, and then activated sludge growing in a suspended manner and a biological film growing in an attached manner are formed, so that the whole reactor space is used for the biological film of the moving bed, the superiority of both the attached phase and the suspended phase organisms is fully exerted, the treated sewage enters the air floatation tank 4 to remove suspended matters, the fallen biological film and the like, and finally reach the standard index of effluent, and the effluent is discharged after entering the water outlet tank 5.
Example 2
The utility model provides a cleaning wastewater's processing system, includes waste water collecting tank 1, intermittent type reaction tank 2, biochemical treatment unit 3, air supporting pond 4, intermediate water tank 6, sand filter 7, active carbon filter 9 and retrieval and utilization water tank 8, waste water collecting tank 1 intermittent type reaction tank 2 biochemical treatment unit 3 air supporting pond 4 intermediate water tank 6 sand filter 7 active carbon filter 9 with retrieval and utilization water tank 8 communicate in proper order, be equipped with compressed air agitator in the waste water collecting tank 1, waste water collecting tank 1 with intermittent type reaction tank 2 passes through the elevator pump intercommunication, be equipped with mixer, skimming machine, drain pump and dredge pump in the intermittent type reaction tank 2, biochemical treatment system be the contact oxidation pond, throw the suspension filler in the contact oxidation pond, namely MBBR technology. The treatment process of the cleaning wastewater in this embodiment is as follows: the cleaning wastewater generated in a workshop enters a wastewater collection tank 1, the wastewater enters an intermittent reaction tank 2 for treatment through the lifting pump after being regulated and homogenized in the collection tank, the intermittent reaction tank 2 is provided with a stirrer, an oil skimming machine, a drainage pump and a mud pump, the wastewater is demulsified in the intermittent reaction tank 2 by adding sulfuric acid or calcium chloride, so that emulsified oil in the wastewater becomes floating oil and floats on the water surface, then the floating oil is skimmed through the oil skimming machine, the suspended solids are settled and clarified by adding chemical agents PAC and PAM, and the drainage pump is started for drainage after the wastewater is completely treated; the bottom sludge is discharged intermittently into the biochemical treatment unit 3 by a sludge discharge pumping sludge treatment system, the biological treatment unit adopts a contact oxidation process, suspended fillers are added, the suspended fillers are in a fluidization state by virtue of aeration in an aeration tank and lifting action of water flow, and then activated sludge growing in a suspended manner and a biological film growing in an attached manner are formed, so that the whole reactor space is used for the biological film of a moving bed, the superiority of both the attached phase and the suspended phase is fully exerted, the treated sewage enters the air floatation tank 4 to remove suspended matters, falling biological films and the like in water, then the suspended matters, COD and other pollutants are further removed by the activated carbon filter 9 through pressurization of a lifting pump, and the effluent reaches the reclaimed water reuse standard and then enters the reuse water tank 8 for greening toilet flushing and the like. More preferably, if it is desired to recycle to a more water-quality user such as a production plant, further additional advanced treatment equipment such as ultrafiltration, reverse osmosis, etc. is required. Specifically, the treatment system of the washing wastewater further comprises an ultrafiltration unit and a reverse osmosis unit, wherein the sand filter 7, the ultrafiltration unit, the activated carbon filter 9, the reverse osmosis unit and the reuse water tank 8 are sequentially communicated.
Example 3
Some automobile parts production enterprises produce cleaning wastewater, degreasing wastewater and the like, main pollutant indexes COD (chemical oxygen demand) is 1000-2000 mg/l before treatment, petroleum is less than 100mg/l, an intermittent reaction tank, an air floatation tank and an activated sludge process (MBR) are adopted in the original process flow, the air floatation tank and MBR equipment are not used for a long time, effluent water after being treated by the intermittent reaction tank directly enters the activated sludge tank, and the activated sludge tank has low load and poor impact resistance and has a certain risk. Removing MBR equipment which is not used for a long time after reconstruction, adding suspension filler after the reconstruction of an activated sludge tank, improving the impact resistance to inlet water, enabling biochemical outlet water to enter an air floatation tank, and removing suspended matter impurities in the water to ensure the water outlet effect; and reserving an interface for recycling the subsequent reclaimed water, and detecting that the discharge area reaches the standard.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (8)
1. The treatment system of the cleaning wastewater is characterized in that a wastewater collection tank (1), an intermittent reaction tank (2), a biochemical treatment unit (3) and an air floatation tank (4) are sequentially arranged along the direction of the cleaning wastewater, and the wastewater collection tank (1), the intermittent reaction tank (2), the biochemical treatment unit (3) and the air floatation tank (4) are sequentially communicated through pipelines;
the biochemical treatment unit (3) is a contact oxidation pond;
one or more of fixed fillers, activated sludge or suspended fillers are arranged in the biochemical treatment unit (3); the treatment system of the cleaning wastewater further comprises an intermediate water tank (6), and the intermediate water tank (6) is communicated with the air floatation tank (4); the treatment system of the cleaning wastewater further comprises a sand filter (7) and a reuse water tank (8), wherein the sand filter (7) is respectively communicated with the intermediate water tank (6) and the reuse water tank (8).
2. The system for treating the cleaning wastewater according to claim 1, further comprising a lift pump which is arranged on a pipeline between the wastewater collection tank (1) and the intermittent reaction tank (2);
and/or a compressed air stirrer is arranged in the wastewater collection tank (1).
3. The system for treating the cleaning wastewater according to claim 1, wherein one or more of a stirrer, an oil skimming machine, a drainage pump or a sludge pump is arranged in the intermittent reaction tank (2).
4. The system for treating washing wastewater according to claim 1, wherein,
and/or an air floatation air dissolving device is arranged in the air floatation tank (4).
5. The system for treating cleaning wastewater according to any one of claims 1-4, characterized in that the system for treating cleaning wastewater further comprises a water outlet tank (5), the water outlet tank (5) being in communication with the air floatation tank (4).
6. The system for treating washing wastewater according to claim 1, characterized in that the system for treating washing wastewater further comprises an activated carbon filter (9), the activated carbon filter (9) being in communication with the sand filter (7) and the reuse water tank (8), respectively.
7. The system for treating washing wastewater according to claim 6, characterized in that it further comprises an ultrafiltration unit in communication with the activated carbon filter (9) and the reuse water tank (8), respectively.
8. The system for treating washing wastewater according to claim 7, characterized in that it further comprises a reverse osmosis unit in communication with the ultrafiltration unit and the reuse water tank (8), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320940564.8U CN220351902U (en) | 2023-04-24 | 2023-04-24 | Treatment system for cleaning wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320940564.8U CN220351902U (en) | 2023-04-24 | 2023-04-24 | Treatment system for cleaning wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220351902U true CN220351902U (en) | 2024-01-16 |
Family
ID=89503223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320940564.8U Active CN220351902U (en) | 2023-04-24 | 2023-04-24 | Treatment system for cleaning wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220351902U (en) |
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2023
- 2023-04-24 CN CN202320940564.8U patent/CN220351902U/en active Active
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