CN205241447U - Device suitable for printing and dyeing wastewater advanced treatment - Google Patents
Device suitable for printing and dyeing wastewater advanced treatment Download PDFInfo
- Publication number
- CN205241447U CN205241447U CN201520887902.1U CN201520887902U CN205241447U CN 205241447 U CN205241447 U CN 205241447U CN 201520887902 U CN201520887902 U CN 201520887902U CN 205241447 U CN205241447 U CN 205241447U
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- ozone
- reaction system
- waste water
- contact reaction
- mbr membrane
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- 239000002351 wastewater Substances 0.000 title claims abstract description 41
- 238000004043 dyeing Methods 0.000 title claims abstract description 29
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 91
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000006243 chemical reaction Methods 0.000 claims abstract description 34
- 239000012528 membrane Substances 0.000 claims abstract description 27
- 239000003054 catalyst Substances 0.000 claims description 15
- 238000012856 packing Methods 0.000 claims description 12
- 230000005587 bubbling Effects 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 5
- 239000005416 organic matter Substances 0.000 abstract description 7
- 230000015556 catabolic process Effects 0.000 abstract description 6
- 238000006731 degradation reaction Methods 0.000 abstract description 6
- 238000005273 aeration Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000006555 catalytic reaction Methods 0.000 abstract description 2
- 239000012510 hollow fiber Substances 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 16
- 230000003647 oxidation Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- 239000007789 gas Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- LCTONWCANYUPML-UHFFFAOYSA-N Pyruvic acid Chemical compound CC(=O)C(O)=O LCTONWCANYUPML-UHFFFAOYSA-N 0.000 description 2
- 230000003851 biochemical process Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 238000009295 crossflow filtration Methods 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 235000012489 doughnuts Nutrition 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000006385 ozonation reaction Methods 0.000 description 2
- WURFKUQACINBSI-UHFFFAOYSA-M ozonide Chemical compound [O]O[O-] WURFKUQACINBSI-UHFFFAOYSA-M 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- AIJULSRZWUXGPQ-UHFFFAOYSA-N Methylglyoxal Chemical compound CC(=O)C=O AIJULSRZWUXGPQ-UHFFFAOYSA-N 0.000 description 1
- -1 OH- Chemical group 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 238000009303 advanced oxidation process reaction Methods 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 229940107700 pyruvic acid Drugs 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000003403 water pollutant Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model provides a can effectively get rid of difficult degradation organic matter structure among the printing and dyeing wastewater, the ozone - MBR who improve waste water biodegradability, goes out water quality of water unites integrated equipment, and complete equipment is including the system of intaking, ozone contact reaction system, intermediate buffer, MBR membrane bioreaction system, aeration systems, play water system. Load catalysis is packed in the ozone contact reaction system, and ozone is thrown and is added with adopting the micropore diffuser to throw, and MBR membrane bioreaction system adopts hollow fiber membrane to filter, and aeration systems adopts the perforated pipe aeration. A whole set of equip biochemical efficient, anti load shock has and can the reinforce, go out water quality of water well and stable, area is little, arrange the mud cycle length, easily realize advantage such as automated control.
Description
Technical field
The utility model relates to a kind of water treatment facilities, specifically relate to a kind of for dyeing waste water advanced treating the complexes of ozone-MBR process integration.
Background technology
Dyeing waste water has the features such as the water yield is large, organic pollution content is high, alkalescence large, change of water quality is large, belong to one of unmanageable industrial wastewater, along with the development of fine fabric and the progress of finishing process in printing and dye-ing technology, the organic matter that makes PVA slurry, New-type adjuvant etc. be difficult to biochemical degradation enters in dyeing waste water in a large number, for dyeing waste water has increased intractability. Be mainly one-level pretreatment and secondary biochemical treatment for treatment of dyeing wastewater at present, water outlet is difficult to ensure stably reaching standard, especially under national energy-saving reduction of discharging policy, the effluent quality of dyeing waste water is required to have had further raising, conventional biochemical method is difficult to reach discharge standard, therefore needs further advanced treating.
The main method of China's dyeing waste water advanced treating has physico-chemical process, chemical oxidization method, biochemical process etc., physico-chemical process: narrow application range, produce a large amount of chemical sludges, and increase the difficulty of operating cost and operational administrative, and easily caused secondary pollution of water; Chemical oxidization method: oxidant dosage is large, and price comparison costliness, operating cost is higher; Biochemical process: cover an area of, processing time is long, poor to organic disposal effect of dyeing wastewater, water quality after treatment is difficult to stable " textile dyeing and finishing industrial water pollution thing discharge standard " (GB4287-2012) new standard that reaches, the noxious material of residual fraction difficult degradation still in water,, need to further process. Therefore, develop the dyeing waste water Tailwater Depth of a set of economical and efficient and process equipment, further reduce the concentration of water pollutant, reduce reuse difficulty, become an important problem, this is also feature of the present utility model.
Advanced oxidation processes has strong oxidizing property, low selective, good to hard-degraded substance removal effect. Ozonation mainly produces oxygen atom by ozone decomposed and oxidation directly occurs organic matter, part that can be removed COD, and the biodegradability of raising waste water, decolorizing effect is comparatively obvious.
Use ozone pollutant can be degraded in the short period of time to the micromolecular compound that is easy to oxidation, the pretreatment using ozone as MBR, can effectively reduce film and pollute and maintain the sufficiently long operation cycle, reduces processing cost.
Pre-Ozonation on Organic Matter has certain oxidability, and the dyeing waste water after two stage treatment is processed by ozone oxidation, has the following feature aspect organic matter removal.
(1) organic matter that ozone can be oxidized has: amino acid, protein, lignin, humic acid, cyanide, chain type unsaturated compound etc. Under the effect of ozone, unsaturated compound first forms ozonide, and then ozonide is hydrolyzed, and unsaturated compound ftractures at once. In addition, ozone also has oxidation to functional groups such as OH-, CHO-, SH-, NH2-, NO-.
(2) ozone, for organic oxidation, is difficult to reach complete inorganicization stage formation carbon dioxide and water by permineralization, can only be by its partial oxidation, and little molecular product in the middle of forming.
(3) after two stage treatment, water outlet is carried out oxidation processes with ozone, and the intermediate product of formation mainly contains: formaldehyde, pyruvic acid, acetic acid and pyroracemic aldehyde. If but ozone dosage is enough, oxidation reaction also can continue down to carry out, and except acetic acid, other materials all may be by oxidation Decomposition that ozone continues.
(4) with ozone, sewage is processed, with reaction time prolongation, BOD/COD ratio can improve, thereby can improve the biodegradability of sewage.
Ozone has good decolorizing effect to dyeing waste water, can effectively be removed by ozone by painted the produced colourity of unsaturated compound, and this is because ozone is easier to oxidation to unsaturated compound ratio.
Although active carbon is to the CODcr in dyeing waste water, BOD5, colourity has good removal effect, but regenerating active carbon difficulty, in regenerative process loss larger, the adsorption capacity after regeneration obviously declines, these have all restricted the application of active carbon aspect advanced treating.
Membrane bioreactor (MBR) is proved to be the high efficiency technical for the treatment of of dyeing and printing, and it can obtain the treatment effect higher than traditional biological wastewater processing technology. The advantage of MBR is that technological process is short, floor space is few, stable effluent quality. Adopt ozone to carry out pre-oxidation, its water outlet can meet direct reuse standard.
Summary of the invention
The utility model is intended to: (1) provides one can effectively remove hardly degraded organic substance structure in dyeing waste water, and the ozone-MBR that improves wastewater biodegradability is unified into covering device; (2) provide a kind of complexes that can improve dyeing waste water effluent quality.
The utility model is dealt with problems by the following technical solutions:
Being applicable to a device for dyeing waste water advanced treating, is ozone-MBR combined unit, comprises water inlet system, ozone contact reaction system, intermediate buffer, MBR membrane bio-reaction system, aerating system, outlet system. Described water inlet system is made up of intake pump, flowmeter and water inlet pipe.
Described ozone contact reaction system comprises ozone dosage system, supported catalyst packing layer, exhaust collection pipe. Ozone dosage system is made up of ozone generator, ozone air inlet pipe and ozone microporous diffuser. The top of ozone microporous diffuser is provided with filler supporting plate, supported catalyst packing layer, exhaust collection pipe and manhole from the bottom to top successively. Described ozone dosage system adopts diffuser bubbling mode to add, and the ozone being produced by ozone generator is added in ozone contact reaction system with the ratio of gas flow ratio 15:1. Ozone microporous diffuser adopts micropore bubbling device, is positioned at the bottom of ozone contact reaction system, and diffuser at least produces the bubble with the about 2mm of mean effective diameter. By diffuser bubbling, to reach the well-mixed object of even gas distribution and waste water. Described supported catalyst packing layer is positioned at ozone contact reaction system middle part, and its load has the ceramsite catalyst of Mn. Described exhaust collection pipe is positioned at the top of ozone contact reaction system, and exhaust collection pipe is connected with ozone tail gas destructor.
Described intermediate buffer is the waste water staging area after ozone Oxidation Treatment, and the time of staying is 15 ~ 45 minutes, and ozone residual in the waste water after ozone oxidation is thoroughly decomposed, and eliminates the inhibitory action of ozone to microorganism in follow-up biochemical treatment.
Described MBR membrane bio-reaction system comprises MBR membrane module, the filter type of MBR membrane module is cross-flow filtration, driving power is negative pressure suction, by the effect of suction pump, make component internal produce negative pressure, and the outside of membrane module is malleation under atmospheric pressure and water body effect, thereby produces transmembrane pressure in the interior outside in film silk aperture, under the effect of transmembrane pressure, produce mass transport process.
Described aerating system, is, in MBR membrane module bottom, aerating system is installed, and aerating system is made up of perforated pipe, gas flowmeter and blower fan. Described aerating system not only promotes circulating of fluid in reactor, improves the degradation efficiency of activated sludge, can also make to occur between doughnut phase mutual friction, clean MBR membrane module.
Described outlet system, is made up of suction pump and outlet pipe, is to be aspirated and made to produce negative pressure in film by pump, and pressure reduction is as driving force, and the water after filtration is discharged through outlet pipe.
The utlity model has following advantage and good effect:
(1) ozone is a kind of cleaning oxidizer, in processing waste water, does not bring any foreign ion into, can not cause secondary pollution to water body, for the printing and dyeing enterprise that needs water reuse, is a kind of well chemical oxidation medicament.
(2) ozone has very strong decolorizing effect, can reduce the use of follow-up decolouring medicament (as conventional medicaments such as chlorine dioxide, liquor natrii hypochloritis, decolorizers), has saved certain operating cost.
(3) this Process for Effluent water quality is high, and operational effect is stable. Ozone is as pre-treatment, and the organic matter of the part difficult for biological degradation of having degraded improves the biodegradable performance of waste water simultaneously. High, the anti-load impact ability of following adopted biochemical efficiency is strong, effluent quality good and stable MBR processes, the strong effluent quality that ensures whole technique.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model outfit.
Accompanying drawing mark: ozone contact reaction system 1, intermediate buffer 2, MBR membrane bio-reaction system 3, intake pump 4, flowmeter 5, water inlet pipe 6, ozone generator 7, ozone air inlet pipe 8, ozone microporous diffuser 9, filler supporting plate 10, supported catalyst packing layer 11, exhaust collection pipe 12, manhole 13, MBR membrane module 14, perforated pipe 15, gas flowmeter 16, blower fan 17, suction pump 18, outlet pipe 19.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described, but enforcement of the present utility model is not limited to this.
As shown in Figure 1, a kind of device that is applicable to dyeing waste water advanced treating, comprises water inlet system, ozone contact reaction system 1, intermediate buffer 2, MBR membrane bio-reaction system 3, aerating system, outlet system. Wherein:
Described water inlet system is made up of intake pump 4, flowmeter 5 and water inlet pipe 6.
Described ozone contact reaction system comprises ozone dosage system, supported catalyst packing layer 11, exhaust collection pipe 12. Ozone dosage system is made up of ozone generator 7, ozone air inlet pipe 8 and ozone microporous diffuser 9. The top of ozone microporous diffuser 9 is provided with filler supporting plate 10, supported catalyst packing layer 11, exhaust collection pipe 12 and manhole 13 from the bottom to top successively. Described ozone dosage system adopts diffuser bubbling mode to add, and the ozone being produced by ozone generator 7 is added in ozone contact reaction system with the ratio of gas flow ratio 15:1. Ozone microporous diffuser 9 adopts micropore bubbling device, is positioned at the bottom of ozone contact reaction system, and diffuser at least produces the bubble with the about 2mm of mean effective diameter. By diffuser bubbling, to reach the well-mixed object of even gas distribution and waste water. Described supported catalyst packing layer 11 is positioned at ozone contact reaction system 1 middle part, and its load has the ceramsite catalyst of Mn. Described exhaust collection pipe 12 is positioned at the top of ozone contact reaction system 1, and exhaust collection pipe 12 is connected with ozone tail gas destructor.
Described intermediate buffer 2 is the waste water staging area after ozone Oxidation Treatment, and the time of staying is 15 ~ 45 minutes, and ozone residual in the waste water after ozone oxidation is thoroughly decomposed, and eliminates the inhibitory action of ozone to microorganism in follow-up biochemical treatment.
Described MBR membrane bio-reaction system 3 comprises MBR membrane module 14, the filter type of MBR membrane module 14 is cross-flow filtration, driving power is negative pressure suction, by the effect of suction pump 18, make component internal produce negative pressure, and the outside of membrane module is malleation under atmospheric pressure and water body effect, thereby produces transmembrane pressure in the interior outside in film silk aperture, under the effect of transmembrane pressure, produce mass transport process.
Described aerating system, is, in MBR membrane module 14 bottoms, aerating system is installed, and aerating system is made up of perforated pipe 15, gas flowmeter 16 and blower fan 17. Described aerating system not only promotes circulating of fluid in reactor, improves the degradation efficiency of activated sludge, can also make to occur between doughnut phase mutual friction, clean MBR membrane module 14.
Described outlet system, is made up of suction pump 18 and outlet pipe 19, is to be aspirated and made to produce negative pressure in film by pump, and pressure reduction is as driving force, and the water after filtration is discharged through outlet pipe 19.
While processing waste water, first open intake pump 4 pending waste water pump is delivered to ozone contact reaction system 1, open ozone generator 7 simultaneously, the ozone of its generation is all entered to ozone contact reaction system 1 by ozone air inlet pipe 8, mix in contact zone with waste water, then rise and make waste water and ozone carry out contact catalysis reaction at supported catalyst packing layer 11 equably through filler supporting plate 10, supported catalyst packing layer 11 loading heights are 10 ~ 20min design by the catalytic Contact reaction time. Ozone tail gas is qualified discharge after exhaust collection pipe 12 is connected to ozone tail gas destructor to abolish remaining a small amount of ozone. Reflect water and flow to intermediate buffer 2, stop 15 ~ 45min, flow into MBR membrane bio-reaction system 3, react after 5 ~ 8h at MBR membrane bio-reaction system 3, by suction pump 18, the water outlet after membrane filtration is extracted, discharge through outlet pipe 19. MBR membrane bio-reaction system 3 bottoms, by blower fan 17 air blast, adopt perforated pipe 15 to carry out aeration.
The utility model can be used as dyeing waste water advanced treating, carries out Combined Treatment with other technique or device combination.
Claims (5)
1. one kind is applicable to the device of dyeing waste water advanced treating, comprise water inlet system, ozone contact reaction system (1), intermediate buffer (2), MBR membrane bio-reaction system (3), aerating system, outlet system, it is characterized in that, described water inlet system is made up of intake pump (4), flowmeter (5) and water inlet pipe (6), and flowmeter (5) is between intake pump (4), water inlet pipe (6); Described ozone contact reaction system (1) comprises ozone dosage system, supported catalyst packing layer (11), exhaust collection pipe (12), ozone dosage system is made up of ozone generator (7), ozone air inlet pipe (8) and ozone microporous diffuser (9), and the top of ozone microporous diffuser (9) is provided with filler supporting plate (10), supported catalyst packing layer (11), exhaust collection pipe (12) and manhole (13) from the bottom to top successively; Described MBR membrane bio-reaction system (3) comprises MBR membrane module (14); Described outlet system is made up of suction pump (18) and outlet pipe (19).
2. a kind of device that is applicable to dyeing waste water advanced treating according to claim 1, is characterized in that, described ozone microporous diffuser (9) adopts micropore bubbling device, is positioned at the bottom of ozone contact reaction system (1).
3. a kind of device that is applicable to dyeing waste water advanced treating according to claim 1, is characterized in that, described supported catalyst packing layer (11) is positioned at the middle part of ozone contact reaction system (1), and its load has the ceramsite catalyst of Mn.
4. a kind of device that is applicable to dyeing waste water advanced treating according to claim 1, is characterized in that, described exhaust collection pipe (12) is positioned at the top of ozone contact reaction system (1), and exhaust collection pipe (12) is connected with ozone tail gas destructor.
5. a kind of device that is applicable to dyeing waste water advanced treating according to claim 1, it is characterized in that, described aerating system is arranged on the bottom of MBR membrane bio-reaction system (3), and aerating system is made up of perforated pipe (15), gas flowmeter (16) and blower fan (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520887902.1U CN205241447U (en) | 2015-11-06 | 2015-11-06 | Device suitable for printing and dyeing wastewater advanced treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520887902.1U CN205241447U (en) | 2015-11-06 | 2015-11-06 | Device suitable for printing and dyeing wastewater advanced treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205241447U true CN205241447U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520887902.1U Expired - Fee Related CN205241447U (en) | 2015-11-06 | 2015-11-06 | Device suitable for printing and dyeing wastewater advanced treatment |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007033A (en) * | 2016-07-07 | 2016-10-12 | 无锡市昂益达机械有限公司 | Intelligent control printing and dyeing wastewater treatment device |
| CN110156255A (en) * | 2019-05-10 | 2019-08-23 | 江苏华晖环保科技有限公司 | A advanced treatment system for biochemically difficult wastewater |
| CN112645538A (en) * | 2020-12-14 | 2021-04-13 | 安徽纬纶环保科技有限公司 | Well-flushing waste liquid integrated treatment device |
| CN116462373A (en) * | 2023-05-25 | 2023-07-21 | 长江生态环保集团有限公司 | A method for emergency treatment of pollution load in composite sewage treatment plants |
-
2015
- 2015-11-06 CN CN201520887902.1U patent/CN205241447U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007033A (en) * | 2016-07-07 | 2016-10-12 | 无锡市昂益达机械有限公司 | Intelligent control printing and dyeing wastewater treatment device |
| CN110156255A (en) * | 2019-05-10 | 2019-08-23 | 江苏华晖环保科技有限公司 | A advanced treatment system for biochemically difficult wastewater |
| CN112645538A (en) * | 2020-12-14 | 2021-04-13 | 安徽纬纶环保科技有限公司 | Well-flushing waste liquid integrated treatment device |
| CN116462373A (en) * | 2023-05-25 | 2023-07-21 | 长江生态环保集团有限公司 | A method for emergency treatment of pollution load in composite sewage treatment plants |
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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: 20160518 |