CN202829757U - Device for treating surfactant-containing wastewater - Google Patents
Device for treating surfactant-containing wastewater Download PDFInfo
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- CN202829757U CN202829757U CN 201220125622 CN201220125622U CN202829757U CN 202829757 U CN202829757 U CN 202829757U CN 201220125622 CN201220125622 CN 201220125622 CN 201220125622 U CN201220125622 U CN 201220125622U CN 202829757 U CN202829757 U CN 202829757U
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- tank
- active agent
- coagulation
- surface active
- pump
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- Expired - Lifetime
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- 239000004094 surface-active agent Substances 0.000 title claims abstract description 21
- 239000002351 wastewater Substances 0.000 title abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 34
- 238000005189 flocculation Methods 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000004065 wastewater treatment Methods 0.000 claims description 14
- 239000003814 drug Substances 0.000 claims description 13
- 230000002572 peristaltic effect Effects 0.000 claims description 3
- 238000002203 pretreatment Methods 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 abstract description 10
- 230000015556 catabolic process Effects 0.000 abstract description 5
- 238000005345 coagulation Methods 0.000 abstract description 5
- 230000015271 coagulation Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004062 sedimentation Methods 0.000 abstract description 3
- 230000016615 flocculation Effects 0.000 abstract 4
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 238000000034 method Methods 0.000 description 15
- 230000001276 controlling effect Effects 0.000 description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- 238000009279 wet oxidation reaction Methods 0.000 description 6
- 239000013543 active substance Substances 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000002153 concerted effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011943 nanocatalyst Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 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
- 238000010170 biological method Methods 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model provides a device for treating surfactant-containing wastewater. The device comprises a pretreatment tank, a main reaction tank, a coagulation and flocculation tank, a sedimentation tank, a pump power system, a dosing system and a full-automatic control system, wherein the pretreatment tank is connected with one end of the main reaction tank, the other end of the main reaction tank is connected with one end of the coagulation and flocculation tank, and the other end of the coagulation and flocculation tank is connected with the sedimentation tank; the dosing system is connected with the pretreatment tank, the main reaction tank and the coagulation and flocculation tank; and the full-automatic control system is connected with the pump power system and the dosing system through signals. The device has the advantages of being mild in reaction, thorough in degradation of pollutants, stable in treatment effect, high in effluent control rate, free of secondary pollution, compact in structure and small in occupied area.
Description
Technical field
The utility model discloses a kind of oxidation unit, and particularly a kind of wet oxidation device that adopts ultraviolet catalytic is used for sewage treatment area.
Background technology
Tensio-active agent is a kind ofly can reduce capillary organic compound, have the effects such as dispersion, emulsification, solubilising, foaming, washing, lubricated, anticorrosion and sterilization, almost in all industries application is arranged, and can great improvement of production process and product performance.Along with the continuous expansion of its range of application, its consumption is increase year after year also, the whole world year usage quantity above ten million ton.Most of tensio-active agents belong to the bio-refractory material, if not treated, directly enter water body, will produce severe contamination to water body, and are larger to animals and plants and the chronic toxic action of human body, and the ecosystem is caused serious harm.Therefore, the processing that contains surface active agent wastewater more and more is subject to the attention of scientific research circle and industry member.The treatment process of surface active agent wastewater is a lot, commonly used have foamet, absorption method, Coagulation Method, catalytic oxidation and some biological methods etc., but because surface active agent wastewater belongs to high concentrated organic wastewater, there are the shortcomings such as processing time period is long, processing is thorough, complex procedures, secondary pollution in traditional treatment process.We have proposed to come with a kind of ultraviolet catalytic wet oxidation technique the novel method of the tensio-active agent that exists in the degrading waste water.Ultraviolet catalytic wet oxidation technique is a kind of wet-type oxidation technology that can carry out at normal temperatures and pressures, its ultimate principle is to introduce UV-light, oxygenant and catalyzer in reaction system, utilizes their extremely strong concerted catalysis oxygenizement oxidations, the tensio-active agent in the degradation water.Finally, not only can improve the biodegradability of waste water, and can realize the tensio-active agent permineralization innoxious by further oxidation.
The utility model content
The purpose of this utility model provides a kind of device that contains surface active agent wastewater, can realize the processing of surface active agent wastewater and innoxious.
The utility model comprises a kind of surface active agent wastewater treatment unit that contains, and described device comprises pretreatment pool, main reaction pond, coagulation-flocculation pond, four main water treating ponds of settling tank, also comprises pump power system, medicine system and full-automatic control system; Described pre-treatment is connected with an end in described main reaction pond, and the other end in described main reaction pond is connected with an end in described coagulation-flocculation pond, and the other end in described coagulation-flocculation pond is connected with described settling tank; Described medicine system is connected with described pretreatment pool, described main reaction pond and described coagulation-flocculation pond; Described full-automatic control system is connected by signal with described pump power system, described medicine system.
Described pretreatment pool is provided with temperature-control device, aerating apparatus, tank gage and pH meter.
Described main reaction pond is provided with temperature-control device, aerating apparatus, tank gage and ultraviolet source lamp.
Described coagulation-flocculation pond is provided with aerating apparatus, tank gage and pH meter.
Described settling tank is provided with tank gage and magnetic valve.
Described ultraviolet source lamp is low pressure ultraviolet lamp or middle pressure ultraviolet lamp.
Described pump power system is impeller pump or surge pump.
Described medicine system comprises dosing tank and dosing pump, and dosing pump adopts peristaltic pump or electromagnetic pump.
Described full-automatic control system comprises automatic operation panel and Controlling System two portions.
Concrete, this device can have been realized completely automated operation, can realize the whole process automatization of surface active agent wastewater from original water inlet to final qualified discharge.The preparation work of wherein carrying out for the reaction conditions needs that satisfy main reaction.For the final residual catalyst that separates in the waste water, guarantee the qualified discharge of water outlet by the precipitation operation.In the whole water treatment procedure, the conveying of waste water adopts the water pump of automatization control to finish.Adding of all medicines adopts the liquid dosing pump to add.
Concrete, being provided with ultraviolet source in the main reactor, the reaction tank bottom is provided with aerating apparatus, temperature-control device, pH meter, tank gage, and the chemicals dosing plant of dosing tank and dosing pump composition.Above assembly and device all can send instruction by automatic control panel, by its operation of Controlling System implementation and operation.
Concrete, described fully automated operation is to send instruction by the automatic operation panel, Controlling System and the operation of corresponding device common implementing.
The beneficial effects of the utility model are: (1) needs to compare with the reaction conditions of high pressure (0.5-20MPa) at high temperature (150-350 ℃) with the conventional catalyst wet oxidation process, the utility model is because the introducing of ultraviolet ray and catalyzer can make wet oxidation reaction carry out under the mild conditions of normal temperature and pressure.
(2) the utility model adopts completely automated operation, give and use the user of surface active agent waste water treatment facility to bring great convenience, and saved the cost of employing professional operator, and the financial loss of having avoided a lot of human operational errors to bring, will obtain the favor of more medium-sized and small enterprises and like future.
(3) oxygenant that adopts of the utility model is one or more the combination in air, oxygen, ozone, hydrogen peroxide, the Peracetic Acid, and low price is easy to use.In addition because the adding of UV-light so that the utilization ratio of oxygenant obviously improves, thus with traditional Catalytic Wet Oxidation reacting phase ratio, the throwing amount of having saved oxygenant.
(4) introduce simultaneously UV-light and catalyzer in the reaction system, utilize their concerted catalysis oxygenizement, the concentrated surfactant Organic Pollutants in Wastewater is resolved into CO
2With harmless compositions such as water, and has simultaneously the effect of deodorizing, decolouring and sterilization and disinfection.
To sum up, device technique described in the utility model have reaction temperature and, the plurality of advantages such as processing efficiency is high, degraded is thorough, level of automation is high, floor space is little, have very high utility model value, have a extensive future.
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Description of drawings
Fig. 1 is the utility model schematic flow sheet.
Among the figure, 2-pretreatment pool, 3 main reaction ponds, 4-coagulation-flocculation pond, the 5-settling tank, 6-produces bucket, the 7-temperature-control device, 8-aerating apparatus, 9-ultraviolet source, the 10-tank gage, 11-pH meter, 12-dosing tank, the 13-dosing pump, 14-Controlling System, 15-automatic operation panel, the 16-work box, the 17-magnetic valve.
Embodiment
The present embodiment is the utility model preferred implementation, and other all its principles are identical with the present embodiment or approximate with basic structure, all within the utility model protection domain.
As shown in Figure 1, the utility model provides a kind of surface active agent wastewater treatment unit that contains, described device comprises pretreatment pool, main reaction pond, coagulation-flocculation pond, four main water treating ponds of settling tank, pump power system, medicine system and full-automatic control system.
Described pretreatment pool is provided with temperature-control device, aerating apparatus, tank gage and pH meter.
Described main reaction pond is provided with temperature-control device, aerating apparatus, tank gage and ultraviolet source lamp.
1, described coagulation-flocculation pond is provided with aerating apparatus, tank gage and pH meter.
2, described settling tank is provided with tank gage and magnetic valve.
3, described ultraviolet source lamp is low pressure ultraviolet lamp or middle pressure ultraviolet lamp.
4, described pump power system is impeller pump or surge pump.
5, described medicine system comprises dosing tank and dosing pump, and dosing pump adopts peristaltic pump or electromagnetic pump.
6, described full-automatic control system comprises automatic operation panel and Controlling System two portions, sends instruction by the automatic operation panel, and the Controlling System implementation and operation is realized the full-automation operation of whole wastewater treatment process.
Concrete, the utility model main body is comprised of a pretreatment pool 2, main reaction pond 3, coagulation-flocculation pond 4, settling tank 5, and they all adopt strong corrosion resistant and temperature-resistant material to process.The power of whole water treatment system is finished by water pump 1, Controlling System 14 its automatic open and close of control.Pretreatment pool 2 is mainly used in the pre-treatment to pending waste water heats, acid-basicity is regulated and added catalyzer.Be provided with temperature-control device 7, aerating apparatus 8, tank gage 10 and pH meter 11 in the pretreatment pool 2.PH meter 11 can be according to predefined numerical value, and control dosing pump 13 adds the soda acid medicament, automatically is adjusted to target setting.Temperature-control device 7 also can be realized the automatically accurately control to wastewater temperature equally.Tank gage 10 can feed back to Controlling System constantly with liquid level, thereby realizes the accurate control to liquid level.Aerating apparatus 8 also is by its automatic open and close of pre-set time variable control.Be pumped in the main reaction pond 3 through pretreated waste water, be provided with temperature-control device 7, aerating apparatus 8, ultraviolet source 9 and tank gage 10 in it, ultraviolet source 9 is by pre-set its automatic open and close of operation sequence control of Controlling System 14, guarantee to react and open at first light source, the reaction times is closed light source when finishing.Oxygenant in the dosing tank 12 is added in the main reaction pond 3 by dosing pump 13, Controlling System 14 its dosages of control.Be pumped into after the wastewater treatment in the coagulation-flocculation pond 4, be provided with aerating apparatus 8, tank gage 10 and pH meter 11 in it, Controlling System 14 is according to pre-set pH value, add the soda acid medicament by dosing pump 13, pH meter 11 feeds back waste water ph constantly, after reaching target value, close dosing pump 13, realize the desired pH condition of coagulation-flocculation operation.Next, waste water is pumped in the settling tank 5, is provided with tank gage 10 in it, magnetic valve 17.Through after certain sedimentation time, Controlling System 14, is regularly opened and is produced bucket 6 valves discharge mud the clear water device for transferring of handling well by preseting instruction opens solenoid valve 17.The utility model adopts full automatic operation scheme, and therefore, said process all sends instruction by automatic operation panel 15, is implemented by the above-mentioned operation of Controlling System 14 controls.Work box 16 is used for stocking equipment part and the common tool that daily need is safeguarded.
The below will be described further the utility model with several specific exampless:
Embodiment one: adopt the waste water that produces in the utility model treat surface promoting agent manufacturing enterprise production process:
Get 4 liters of certain high concentrated organic wastewaters of showing to produce in the work agent factory production processes (through measuring its COD
CrConcentration is 38032mg/L) put into pretreatment pool 2, regulate pH value to 7, adding simultaneously self-control Cu is that nanocatalyst is to 5g/L concentration, then enter in the reaction tank 3, adding concentration is 30% hydrogen peroxide 400mL, adopt the mechanical stirring mode to stir, open the 80W ultraviolet lamp and start reaction, carry out oxidative degradation.The COD of different degradation times
CrMeasurement result shows, the reaction times is the COD of 60min, 90min, 150min and 270min sample
CrDegradation rate is respectively 70.3%, 76.9%, 96.3% and 99.4%, last water outlet COD
CrBe 214mg/L.
If other conditions are the same, but turn off ultraviolet lamp, the COD of 60min, 90min, 150min and 270min sample
CrDegradation rate is respectively 30.3%, 46.9%, 56.3% and 66.5%, is starkly lower than device of the present utility model.
Embodiment two: adopt the utility model degraded consumption electronic product factory Cleaning Wastewater:
Its COD of actual Cleaning Wastewater 4L(of certain Electronics Factory
CrConcentration is 2619mg/L) be pumped in the pretreatment pool 2 by the utility model automatic equipment, regulate pH to 4, temperature to 35 degree, and add the self-control Fe, Cu be that ionic catalyst is to 2g/L(mass ratio Fe:Cu=2:1), then be pumped in the main reaction pond 3, and add 30% hydrogen peroxide to 10g/L concentration, open simultaneously the 80W ultraviolet lamp and start this oxidizing reaction, with the air flow quantity aeration of 50L/min.The COD of different degradation times
CrMeasurement result shows, the reaction times is the COD of 30min, 90min and 120min sample
CrDegradation rate is respectively 53.8%, 76.6%, 96.4% last water outlet COD
CrBe 93mg/L.In addition, BOD behind the processing 30min
5/ CODcr rises to 0.36 from 0.11 of former water, and biodegradability obviously improves.
Embodiment three: adopt the utility model degraded five metals source mill Cleaning Wastewater:
With 4 liters of certain Cleaning Wastewater (its COD of five metals source mill
CrConcentration is 13032mg/L) be pumped in the pretreatment pool 2 by the utility model automatic equipment, regulate pH value to 6.5, adding simultaneously self-control Fe, P is that the granule type nanocatalyst is to 5g/L concentration, then be pumped in the main reaction pond 3, and add Peracetic Acid to 11g/L concentration, open simultaneously the 80W ultraviolet lamp and start this oxidizing reaction, and be aided with the air flow quantity aeration of 50L/min.The COD of different degradation times
CrMeasurement result shows, the reaction times is the COD of 30min, 90min and 150min sample
CrDegradation rate is respectively 19.2%, 52.3%, 99.5%, and last water outlet CODCr is 60.1mg/L; When processing to 90min, sampling records the BOD of waste water
5/ CODcr 0.12 rises to 0.30 before be untreated, and biodegradability obviously improves.
If other conditions are the same, but turn off ultraviolet lamp, the COD of 30min, 60min and 150min sample
CrDegradation rate is respectively 6.1%, 15.4%, 21.5%, is starkly lower than the device of this device utility model.
Claims (8)
1. one kind contains the surface active agent wastewater treatment unit, it is characterized in that: described device comprises pretreatment pool, main reaction pond, coagulation-flocculation pond, four main water treating ponds of settling tank, also comprises pump power system, medicine system and full-automatic control system; Described pre-treatment is connected with an end in described main reaction pond, and the other end in described main reaction pond is connected with an end in described coagulation-flocculation pond, and the other end in described coagulation-flocculation pond is connected with described settling tank; Described medicine system is connected with described pretreatment pool, described main reaction pond and described coagulation-flocculation pond; Described full-automatic control system is connected by signal with described pump power system, described medicine system.
2. described a kind of surface active agent wastewater treatment unit that contains according to claim 1, it is characterized in that: described pretreatment pool is provided with temperature-control device, aerating apparatus, tank gage and pH meter.
3. described a kind of surface active agent wastewater treatment unit that contains according to claim 1, it is characterized in that: described main reaction pond is provided with temperature-control device, aerating apparatus, tank gage and ultraviolet source lamp.
4. described a kind of surface active agent wastewater treatment unit that contains according to claim 1, it is characterized in that: described coagulation-flocculation pond is provided with aerating apparatus, tank gage and pH meter.
5. described a kind of surface active agent wastewater treatment unit that contains according to claim 1, it is characterized in that: described settling tank is provided with tank gage and magnetic valve.
6. described a kind of surface active agent wastewater treatment unit that contains according to claim 3, it is characterized in that: described ultraviolet source lamp is low pressure ultraviolet lamp or middle pressure ultraviolet lamp.
7. described a kind of surface active agent wastewater treatment unit that contains according to claim 1 is characterized in that: described pump power system is impeller pump or surge pump.
8. described a kind of surface active agent wastewater treatment unit that contains according to claim 1, it is characterized in that: described medicine system comprises dosing tank and dosing pump, dosing pump adopts peristaltic pump or electromagnetic pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220125622 CN202829757U (en) | 2012-03-29 | 2012-03-29 | Device for treating surfactant-containing wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220125622 CN202829757U (en) | 2012-03-29 | 2012-03-29 | Device for treating surfactant-containing wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202829757U true CN202829757U (en) | 2013-03-27 |
Family
ID=47941512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220125622 Expired - Lifetime CN202829757U (en) | 2012-03-29 | 2012-03-29 | Device for treating surfactant-containing wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202829757U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386852A (en) * | 2014-10-23 | 2015-03-04 | 浙江卓锦工程技术有限公司 | High-concentration surface-active-agent wastewater treating technology |
| CN107857408A (en) * | 2017-12-08 | 2018-03-30 | 暨南大学 | PPCPs purifier and processing method in a kind of drinking water source |
| CN108892297A (en) * | 2018-08-28 | 2018-11-27 | 何旭红 | A kind of oxidation equipment and its catalysed oxidation processes |
-
2012
- 2012-03-29 CN CN 201220125622 patent/CN202829757U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386852A (en) * | 2014-10-23 | 2015-03-04 | 浙江卓锦工程技术有限公司 | High-concentration surface-active-agent wastewater treating technology |
| CN107857408A (en) * | 2017-12-08 | 2018-03-30 | 暨南大学 | PPCPs purifier and processing method in a kind of drinking water source |
| CN107857408B (en) * | 2017-12-08 | 2023-05-19 | 暨南大学 | Purifying device and treatment method for PPCPs in drinking water source |
| CN108892297A (en) * | 2018-08-28 | 2018-11-27 | 何旭红 | A kind of oxidation equipment and its catalysed oxidation processes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN DOHILL ENVIRONMENTAL PROTECTION TECHNOLOG Free format text: FORMER OWNER: LI CHAOLIN Effective date: 20140528 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518000 SHENZHEN, GUANGDONG PROVINCE TO: 523808 DONGGUAN, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140528 Address after: 523808 Guangdong province Dongguan Songshan Lake high tech Industrial Development Zone No. 9 Keyuan pine floor 411A room Patentee after: Dongguan Dohill Environmental Protection Technology Co., Ltd. Address before: 121 8D, 518000 village, Futian District, Shenzhen, Guangdong, Yitian Patentee before: Li Chaolin |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 523808 Block B, Block 6, International Finance IT Research and Development Center, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province, Negative First to Second Floors Patentee after: Dongguan Dao Hui environmental protection Polytron Technologies Inc Address before: 523808 Guangdong province Dongguan Songshan Lake high tech Industrial Development Zone No. 9 Keyuan pine floor 411A room Patentee before: Dongguan Dohill Environmental Protection Technology Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |