CN220098784U - Environment-friendly cleaning wastewater recycling system for packaging printing industry - Google Patents
Environment-friendly cleaning wastewater recycling system for packaging printing industry Download PDFInfo
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- CN220098784U CN220098784U CN202320607161.1U CN202320607161U CN220098784U CN 220098784 U CN220098784 U CN 220098784U CN 202320607161 U CN202320607161 U CN 202320607161U CN 220098784 U CN220098784 U CN 220098784U
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- 239000002351 wastewater Substances 0.000 title claims abstract description 100
- 238000007639 printing Methods 0.000 title claims abstract description 27
- 238000004140 cleaning Methods 0.000 title claims abstract description 25
- 238000004064 recycling Methods 0.000 title claims abstract description 20
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 101
- 239000012528 membrane Substances 0.000 claims abstract description 42
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 15
- 238000011010 flushing procedure Methods 0.000 claims abstract description 14
- 239000004816 latex Substances 0.000 claims abstract description 10
- 229920000126 latex Polymers 0.000 claims abstract description 10
- 229920002472 Starch Polymers 0.000 claims abstract description 9
- 235000019698 starch Nutrition 0.000 claims abstract description 9
- 239000008107 starch Substances 0.000 claims abstract description 9
- 239000008213 purified water Substances 0.000 claims abstract description 5
- 238000004062 sedimentation Methods 0.000 claims description 34
- 238000006243 chemical reaction Methods 0.000 claims description 26
- 230000001105 regulatory effect Effects 0.000 claims description 26
- 230000003647 oxidation Effects 0.000 claims description 20
- 238000007254 oxidation reaction Methods 0.000 claims description 20
- 239000002893 slag Substances 0.000 claims description 17
- 238000000926 separation method Methods 0.000 claims description 13
- 238000003916 acid precipitation Methods 0.000 claims description 8
- 238000001223 reverse osmosis Methods 0.000 claims description 7
- 238000005345 coagulation Methods 0.000 claims description 6
- 230000015271 coagulation Effects 0.000 claims description 6
- 238000005189 flocculation Methods 0.000 claims description 6
- 230000016615 flocculation Effects 0.000 claims description 6
- 230000007062 hydrolysis Effects 0.000 claims description 5
- 238000006460 hydrolysis reaction Methods 0.000 claims description 5
- 239000010802 sludge Substances 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims 5
- 239000000126 substance Substances 0.000 abstract description 4
- 239000006228 supernatant Substances 0.000 description 11
- 239000012535 impurity Substances 0.000 description 6
- 244000005700 microbiome Species 0.000 description 6
- 230000020477 pH reduction Effects 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 235000003891 ferrous sulphate Nutrition 0.000 description 3
- 239000011790 ferrous sulphate Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000004042 decolorization Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a cleaning wastewater recycling system in the environment-friendly packaging printing industry, which comprises a printing cleaning wastewater pretreatment device, a white latex cleaning wastewater pretreatment device, a CTP plate flushing wastewater pretreatment device, a starch cleaning wastewater pretreatment device, a comprehensive wastewater treatment device, and an MBR membrane pool, an MBR water producing pool, a purified water treatment component, a UF membrane component, a UF water producing tank, an RO membrane component and a concentrated water treatment device which are sequentially arranged. According to the utility model, after various waste water is collected in a classified manner, the waste water enters respective pretreatment devices for physical and chemical treatment, and then enters a comprehensive waste water treatment device for biochemical treatment; and part of organic matters are removed, and meanwhile, the biodegradability of the wastewater is further improved.
Description
Technical Field
The utility model relates to the technical field of organic wastewater treatment, in particular to a cleaning wastewater recycling system in the environment-friendly packaging printing industry.
Background
The environment-friendly packaging and packaging printing industry is mainly engaged in the high-end environment-friendly intelligent integrated packaging industry, and the product comprises corrugated paper boards, color boxes (comprising a card box and a pit box), fine boxes, specifications and self-adhesive products, and a large amount of waste water can be produced in the working procedures of plate punching, printing, surface treatment, mounting, packaging, gluing and the like in the production process, wherein 65.8% of reclaimed water is recycled, and the rest 34.2% of waste water is discharged. The existing wastewater treatment mode is that printing cleaning wastewater, white latex cleaning wastewater and CTP plate flushing wastewater enter a water collecting tank through a collecting pipe network and then enter a reaction tank together through a water pump, after chemical adding reaction, after mud-water separation of a sedimentation tank, supernatant enters an air floatation system, after substances and suspended matters in the wastewater are removed through air floatation, the supernatant enters a high-grade oxidation tank, after partial COD is removed through strong oxidation, primary materialization sedimentation reaction is carried out, the supernatant enters a biochemical regulating tank, after pH is regulated to be neutral, the supernatant enters an anaerobic tank, after organic matters in the wastewater are removed through anaerobic microorganisms, the supernatant enters a contact oxidation tank to carry out aerobic biological reaction, and finally the supernatant enters a secondary sedimentation tank to be sedimentated, and the supernatant is discharged, so that the following problems mainly exist: 1) The wastewater treatment difficulty is high, and from the water quality condition, the produced production wastewater belongs to organic wastewater with ultra-high concentration, the oil content is high, the impurities in the wastewater are more, and the biodegradability is poor; 2) The increasingly serious wastewater discharge standard is difficult to meet, the national policy is continuously tightened, the local government is increasingly strictly regulated, and the total discharge amount of pollutants is monitored and supervised on line; 3) The recycling rate requirement can not be met, and part of areas require high recycling rate and even zero emission.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide a cleaning wastewater recycling system in the environment-friendly packaging printing industry.
The aim of the utility model can be achieved by the following technical scheme: the utility model provides an environmental protection packing printing trade wash waste water recycling system, including printing wash waste water pretreatment device, white latex class wash waste water pretreatment device, CTP dashes version waste water pretreatment device, starch class wash waste water pretreatment device, synthesize waste water treatment device and MBR membrane pond that sets gradually, MBR produces the pond, the purification water treatment component, the UF membrane module, the UF produces the water tank, RO membrane module, dense water treatment device, printing waste water pretreatment device is including separating slag pond one that sets gradually, equalizing basin one, acid out pond one, materialized sedimentation tank, the air supporting pond, the intermediate tank, advanced oxidation pond and secondary sedimentation tank, starch class wash waste water pretreatment device includes separating slag pond three, synthesize waste water treatment device includes synthesizing waste water equalizing basin that sets gradually, pH callback pond one, anaerobic pond, facultative tank, contact oxidation pond and activated sludge pond, dense water treatment device is including the dense water collecting box that sets gradually, fenton oxidation pond, pH callback pond two, dense water sedimentation tank and hydrolysis acidification pond, secondary sedimentation tank, separate the delivery port of slag pond three is all in the water outlet of the reverse osmosis membrane is connected in the reverse flow tank, the dense water outlet intercommunication in the reverse osmosis membrane is in the reverse flow tank of the reverse osmosis membrane.
Preferably, the concentrated water outlet of the UF membrane assembly is communicated with the MBR water producing tank through a return pipe, the water producing port of the UF membrane assembly is communicated with the UF water producing tank, and the water outlet of the UF water producing tank is communicated with the inlet of the RO membrane assembly.
Preferably, the purified water treatment assembly comprises a multi-medium filter, a softener and a softened water outlet tank which are sequentially connected, wherein a water outlet of the MBR water producing tank is communicated with an inlet of the multi-medium filter, an outlet of the multi-medium filter is communicated with an inlet of the softener, an outlet of the softener is communicated with the softened water outlet tank, and a water outlet of the softened water outlet tank is communicated with an inlet of the UF membrane assembly.
Preferably, the white latex wastewater pretreatment device comprises a slag separation tank II, a regulating tank II, a physical-chemical reaction tank and a primary sedimentation tank which are sequentially arranged, wherein a water outlet of the primary sedimentation tank is communicated with the middle tank.
Preferably, the CTP flushing wastewater pretreatment device comprises a grid well, a third regulating tank, a second acid precipitation tank, a coagulation reaction tank, a pH regulating tank, a flocculation reaction tank and a flushing sedimentation tank, wherein the water outlet of the flushing sedimentation tank is communicated with the comprehensive wastewater regulating tank.
The beneficial effects of the utility model are as follows: the utility model relates to a cleaning wastewater recycling system in the environment-friendly packaging printing industry, which comprises a printing cleaning wastewater pretreatment device, a starch cleaning wastewater pretreatment device, a comprehensive wastewater treatment device, an MBR membrane tank, an MBR water producing tank, a purified water treatment component, a UF membrane component, a UF water producing tank, an RO membrane component and a concentrated water treatment device which are sequentially arranged, wherein compared with the existing wastewater treatment device, the cleaning wastewater recycling system has the following advantages:
(1) Pretreatment of waste water separation
Compared with the traditional treatment mode, the scheme collects various kinds of wastewater by classification, and enters the respective pretreatment devices for physical and chemical treatment respectively and then enters the comprehensive wastewater treatment device for biochemical treatment; and part of organic matters are removed, and simultaneously, the biodegradability of the wastewater is further improved, so that conditions are provided for subsequent contact oxidation.
(2) Adopts a slag separation tank prepositive structure to reduce the impurity content in the wastewater
The waste water with more impurities is provided with the slag separating tank when being collected, a large amount of impurities and sediments are removed before entering the regulating tank, the load of the regulating tank is reduced, and preparation is made for the stable operation of a subsequent system.
(3) High quality of treated effluent
After COD and ammonia nitrogen in the wastewater are removed by aerobic microorganisms in the facultative tank and the contact oxidation tank, pollutants in the wastewater are further removed by the filtration effect of the MBR membrane tank, the UF membrane component and the RO membrane component, the quality of the effluent is improved, and the effluent is discharged or recycled in a workshop after reaching standards.
Drawings
The utility model will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the utility model, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
FIG. 1 is a schematic flow chart of a cleaning wastewater recycling system in the environment-friendly packaging printing industry.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
Referring to fig. 1, the structure of the present utility model is: the utility model provides an environmental protection packing printing trade wash waste water recycling system, includes printing wash waste water pretreatment unit, white latex class wash waste water pretreatment unit, CTP towards version waste water pretreatment unit, starch class wash waste water pretreatment unit, synthesize waste water treatment unit and the MBR membrane pond that sets gradually, MBR produce pond, purification water treatment component, UF membrane module, UF produce water tank, RO membrane module, dense water treatment facilities, printing waste water pretreatment unit is including the first, equalizing basin of separating that sets gradually, first, the acidification pond, materialization sedimentation tank, air supporting pond, intermediate tank, advanced oxidation pond and second grade sedimentation tank, starch class wash waste water pretreatment unit includes separates slag tank III, synthesize waste water treatment facilities including the first, anaerobic tank, the facultative tank that set gradually of synthetic waste water equalizing basin, contact oxidation pond and activated sludge pond, dense water treatment facilities is including the dense water collecting box, fenton oxidation pond, pH callback pond, dense water sedimentation tank and the hydrolysis acidification pond that set gradually, second grade sedimentation tank, separate three sedimentation tank, separate in the return tank is in the reverse flow inlet of the reverse osmosis membrane, the reverse flow tank is connected in the active water of the reverse flow in the reverse osmosis membrane of the reverse flow.
Further, the concentrated water outlet of the UF membrane component is communicated with the MBR water producing tank through a return pipe, the water producing port of the UF membrane component is communicated with the UF water producing tank, and the water outlet of the UF water producing tank is communicated with the inlet of the RO membrane component.
Further, the purified water treatment assembly comprises a multi-medium filter, a softener and a softened water outlet tank which are sequentially connected, wherein a water outlet of the MBR water producing tank is communicated with an inlet of the multi-medium filter, an outlet of the multi-medium filter is communicated with an inlet of the softener, an outlet of the softener is communicated with the softened water outlet tank, and a water outlet of the softened water outlet tank is communicated with an inlet of the UF membrane assembly.
Further, the device for pretreating the white latex cleaning wastewater comprises a second slag separating tank, a second regulating tank, a materialized reaction tank and a first-stage sedimentation tank which are sequentially arranged, and a water outlet of the first-stage sedimentation tank is communicated with the middle tank.
Further, the device for pretreating CTP flushing wastewater comprises a grid well, a third regulating tank, a second acid precipitation tank, a coagulation reaction tank, a pH regulating tank, a flocculation reaction tank and a flushing sedimentation tank, wherein a water outlet of the flushing sedimentation tank is communicated with the comprehensive wastewater regulating tank.
When the device is specifically used, (1) printing and cleaning wastewater enters a slag separation tank I through a collecting pipe network, enters a regulating tank I after slag separation, is pumped into an acid precipitation tank I, is fully and uniformly mixed with concentrated sulfuric acid and wastewater through mechanical stirring arranged in the acid precipitation tank I, enters a materialized sludge tank after acid precipitation reaction, enters an air floatation tank after mud-water separation, and enters an intermediate tank after suspended matters in the wastewater are removed through air floatation;
(2) The waste water from the cleaning of the white latex enters a slag separation tank II through a waste water collecting pipe network, the effluent after slag separation treatment enters a regulating tank II, then the waste water is pumped into a physical and chemical reaction tank, the physical and chemical reaction tank mainly carries out a series of physical and chemical reactions through dosing, certain pollutants in the waste water are transferred from liquid to solid, the effect of easy precipitation is achieved, the supernatant after the primary physical and chemical precipitation reaction enters an intermediate tank, then the supernatant enters a high-grade oxidation tank together with the effluent of an air floatation tank, partial COD in the waste water is removed through strong oxidation, the waste water enters a secondary sedimentation tank, and the effluent of the secondary sedimentation tank enters a comprehensive waste water regulating tank;
(3) The CTP plate flushing wastewater enters a grid well through a collecting net pipe, impurities in the wastewater are removed through a grid, then discharged water enters a regulating tank III, then pumped into an acid precipitation tank II, concentrated sulfuric acid and the wastewater are fully and uniformly mixed through mechanical stirring arranged in the acid precipitation tank II, then pumped into a coagulation reaction tank, ferrous sulfate is added into the coagulation reaction tank, ferrous sulfate is adopted for decolorization and dephosphorization, the ferrous sulfate can be quickly combined with suspended matters in a water body for sedimentation, the sedimentation process has the functions of sterilization, decolorization and COD removal, the discharged water enters a pH regulating tank after coagulation reaction, enters a flocculation reaction tank after pH is regulated to 7-9, flocculating agent is added into the flocculation reaction tank, mud-water separation is carried out through a plate flushing sedimentation tank after flocculation reaction, and supernatant fluid enters a comprehensive wastewater regulating tank;
(4) Removing impurities from starch cleaning wastewater through a slag separation tank III, enabling supernatant fluid and pretreated effluent of printing cleaning wastewater, white latex cleaning wastewater and CTP flushing wastewater to enter a comprehensive wastewater regulating tank together, pumping the wastewater to a pH callback tank I, regulating pH to be neutral, enabling the wastewater to enter an anaerobic tank, removing organic matters in the wastewater through anaerobic microorganisms, improving and improving biodegradability and solubility of raw wastewater at the same time so as to facilitate subsequent aerobic treatment, removing COD and ammonia nitrogen in the wastewater through aerobic microorganisms of a facultative tank and a contact oxidation tank, filtering the wastewater through an MBR membrane tank, enabling filtered effluent to enter an MBR membrane water producing tank, filtering the wastewater through a multi-medium filter and a softener, enabling the filtered effluent to enter a UF membrane assembly, enabling residual suspended matters in the water to be further removed through a reflux pipe, enabling UF concentrated water to enter a UF water producing tank, enabling the UF concentrated water to enter an RO membrane assembly through a precision filter, enabling the concentrated water and TDRO (time domain reverse osmosis) to be discharged in a concentrated water recycling form under the action of the RO membrane assembly, enabling the concentrated water to enter a standard water recycling water producing tank to be recycled into a standard water recycling tank;
(5) The RO concentrated water is singly collected by a concentrated water collecting tank and then pumped into a Fenton oxidation tank, under the Fenton reaction, high polymers are broken into low molecules and are partially removed, then the low molecules enter a pH callback tank II for pH adjustment, pH is adjusted to 6.8-7.5, then the low molecules enter a concentrated water sedimentation tank for solid-liquid separation, the sediment water enters a hydrolysis acidification tank for removing part of organic matters, and meanwhile, the biodegradability of the wastewater is further improved, conditions are provided for subsequent contact oxidation, after hydrolysis and acidification treatment, the low molecules are returned to a facultative tank, a contact oxidation tank and an activated sludge tank in a comprehensive wastewater treatment device for aerobic biological reaction, and organic matters in the water body are subjected to synthesis metabolism and propagation, and are decomposed into stable small molecular inorganic matters by the aerobic microorganisms and facultative anaerobic microorganisms; further removes the pollutant in the wastewater, improves the quality of the effluent, and enables the effluent to be discharged or recycled in workshops after reaching standards.
The utility model has been further described with reference to specific embodiments, but it should be understood that the detailed description is not to be construed as limiting the spirit and scope of the utility model, but rather as providing those skilled in the art with the benefit of this disclosure with the benefit of their various modifications to the described embodiments.
Claims (5)
1. The utility model provides an environmental protection packing printing trade washs waste water recycling system which characterized in that: including printing washing wastewater pretreatment device, white latex class washing wastewater pretreatment device, CTP dashes version wastewater pretreatment device, starch class washing wastewater pretreatment device, synthesize wastewater treatment device and the MBR membrane pond that sets gradually, MBR produce pond, purification water treatment component, UF membrane module, UF produce water tank, RO membrane module, dense water treatment device, printing washing wastewater pretreatment device is including the separate slag pond one that sets gradually, equalizing basin one, acid out pond one, materialization sedimentation tank, air supporting pond, middle pond, advanced oxidation pond and second grade sedimentation tank, starch class washing wastewater pretreatment device includes separates slag pond three, synthesize wastewater treatment device including synthesize wastewater equalizing basin, pH callback pond one, anaerobic pond, facultative tank, contact oxidation pond and activated sludge pond that sets gradually, dense water treatment device includes dense water collecting box, fenton oxidation pond, pH pond two, dense water sedimentation tank and the hydrolysis tank that set gradually, second grade sedimentation tank, separate slag pond three delivery port all link to each other in the equalizing basin that sets gradually, the return pipe is linked to each other in the reverse osmosis membrane's that the reverse flow membrane produced the return pipe is linked to each other in the active water tank, the reverse flow tank is linked to each other.
2. The cleaning wastewater recycling system in the environment-friendly packaging printing industry as claimed in claim 1, wherein: the concentrated water outlet of the UF membrane component is communicated with the MBR water producing tank through a return pipe, the water producing port of the UF membrane component is communicated with the UF water producing tank, and the water outlet of the UF water producing tank is communicated with the inlet of the RO membrane component.
3. The cleaning wastewater recycling system in the environment-friendly packaging printing industry as claimed in claim 1, wherein: the purified water treatment assembly comprises a multi-medium filter, a softener and a softening water outlet tank which are sequentially connected, wherein a water outlet of the MBR water producing tank is communicated with an inlet of the multi-medium filter, an outlet of the multi-medium filter is communicated with an inlet of the softener, an outlet of the softener is communicated with the softening water outlet tank, and a water outlet of the softening water outlet tank is communicated with an inlet of the UF membrane assembly.
4. The cleaning wastewater recycling system in the environment-friendly packaging printing industry as claimed in claim 1, wherein: the white latex wastewater pretreatment device comprises a slag separation tank II, a regulating tank II, a physical-chemical reaction tank and a primary sedimentation tank which are sequentially arranged, and a water outlet of the primary sedimentation tank is communicated with the middle tank.
5. The cleaning wastewater recycling system in the environment-friendly packaging printing industry as claimed in claim 1, wherein: the CTP flushing wastewater pretreatment device comprises a grid well, a third regulating tank, a second acid precipitation tank, a coagulation reaction tank, a pH regulating tank, a flocculation reaction tank and a flushing sedimentation tank, wherein a water outlet of the flushing sedimentation tank is communicated with the comprehensive wastewater regulating tank.
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CN202320607161.1U CN220098784U (en) | 2023-03-24 | 2023-03-24 | Environment-friendly cleaning wastewater recycling system for packaging printing industry |
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CN202320607161.1U CN220098784U (en) | 2023-03-24 | 2023-03-24 | Environment-friendly cleaning wastewater recycling system for packaging printing industry |
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CN220098784U true CN220098784U (en) | 2023-11-28 |
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