CN205170577U - Sewage treatment device that catalyst was retrieved - Google Patents
Sewage treatment device that catalyst was retrieved Download PDFInfo
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- CN205170577U CN205170577U CN201520723811.4U CN201520723811U CN205170577U CN 205170577 U CN205170577 U CN 205170577U CN 201520723811 U CN201520723811 U CN 201520723811U CN 205170577 U CN205170577 U CN 205170577U
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- pipeline
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- pump
- mixing tank
- water
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- 239000010865 sewage Substances 0.000 title claims abstract description 40
- 239000003054 catalyst Substances 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 104
- 238000002156 mixing Methods 0.000 claims abstract description 39
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000012528 membrane Substances 0.000 claims abstract description 11
- 238000011084 recovery Methods 0.000 claims description 22
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 6
- 238000005374 membrane filtration Methods 0.000 claims description 4
- 238000001728 nano-filtration Methods 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 238000000108 ultra-filtration Methods 0.000 claims description 4
- 239000002033 PVDF binder Substances 0.000 claims 1
- 230000003647 oxidation Effects 0.000 abstract description 12
- 238000007254 oxidation reaction Methods 0.000 abstract description 12
- 230000003197 catalytic effect Effects 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000012141 concentrate Substances 0.000 abstract description 3
- 238000006555 catalytic reaction Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 15
- 230000000694 effects Effects 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000001590 oxidative effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000011949 solid catalyst Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical group 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Physical Water Treatments (AREA)
Abstract
The utility model discloses a sewage treatment device that catalyst was retrieved, this equipment include blending tank, reactor intake pump, reactor, circulation booster pump and the membrane post that connects gradually through the pipeline, wherein: seted up the charge door on the blending tank, the circulation booster pump passes through the pipeline to be connected with the water inlet of membrane post, and the concentrate mouth of membrane post is connected with the blending tank through dense water pipe, installs dense water valve on the dense water pipe, and the reactor includes a casing and installs the ozone diffuser in the casing bottom. The beneficial effects of the utility model are that: full play catalyst specific surface is big, the efficient characteristics of catalysis to can be with catalyst effective recycling, reduce catalytic oxidation's economic cost, cooperation ultraviolet lamp light exposure reaches the best catalytic effect.
Description
Technical field
The utility model relates to a kind of technical field of sewage, is specifically related to a kind of sewage disposal device of catalyst recovery.
Background technology
Under the prerequisite that environmental requirement is day by day harsh, the sewage disposal of a lot of difficult degradation inevitably have selected this technique of catalyzed oxidation, pollutant oxidation in water can be decomposed into harmless inorganics by catalyzed oxidation, thus reach the object of Pollution abatement, wherein used catalyzer can make speed of reaction be multiplied, and improve pollutent decomposition efficiency, and not loss of catalyzer itself, can reuse.
The treatment catalyst majority used at present is metal oxide, in order to obtain higher efficiency, usually catalyzer is processed into very tiny particle, even nano-scale particle, this kind of particle can exist with stable colloidal form in water, have the advantages that specific surface area is large, active by force, efficiency is high, catalytic efficiency can be improved further by other means (as uv irradiating) simultaneously.But this type of catalyzer is comparatively stable after adding sewage, is difficult to be separated, recycles very difficult.If but do not reclaim, cannot accept economically because catalyzer is expensive, new pollutent can be become simultaneously.Just because of these reasons, currently used mode is attached to by granules of catalyst on the carrier such as filler, column plate, it is made to outflow with water, but the shortcoming that this mode is brought also is obviously, first be attached to and carrier strongly limit catalyzer fully contact with water, the factor such as thickness, bonding way of adhesion layer significantly reduces the specific surface area of catalyzer, and the effect that active and efficiency ratio is dispersed in water is had a greatly reduced quality; Secondly, due to the weak not even printing opacity of carrier light transmission, and catalyzer be attached to carrier surface after reduce the light transmission of carrier, constrain light-catalysed application, the means such as UV-light cannot be used to improve catalytic effect further.
Utility model content
The purpose of this utility model is to provide the sewage disposal device that a kind of Catalyst sewage reclaims, the nano level catalyzer of solid can be dispersed in water by the utility model, give full play to the feature that specific surface area of catalyst is large, catalytic efficiency is high, by film post by catalyzer efficient recovery, and the catalyzer reclaimed joins in pending sewage, continue catalyzed oxidation, reduce the Financial cost of catalyzed oxidation, to overcome prior art above shortcomings.
The purpose of this utility model is achieved through the following technical solutions:
The sewage treatment process of catalyst recovery, is characterized in that, in turn includes the following steps:
S1, nano level catalyzer to be rendered in sewage dispersedly;
S2, sewage is made to flow into film post through the water-in of film post;
The concentrated solution of S3, film post is transported in the sewage in the front of the water-in of film post by the road.
The sewage disposal device of catalyst recovery, comprises the mixing tank, reactor intake pump, reactor, circularly-supercharged pump and the film post that are connected successively by pipeline, wherein:
Described mixing tank offers the charging opening for adding catalyzer in it, described circularly-supercharged pump is connected by the water-in of pipeline with described film post, the concentrated solution mouth of described film post is connected with described mixing tank by dense water pipe, described dense water pipe is provided with dense water valve, and described reactor comprises a housing and is arranged on the ozone diffuser of described housing bottom.
Further, described mixing tank is connected with cartridge filter, water inlet topping-up pump and former water pot in turn by pipeline, and treatment sewage is delivered in described former water pot by the road.
Further, connect described water inlet topping-up pump with on the pipeline of described former water pot, be connected described water inlet topping-up pump with on the pipeline of described cartridge filter, be connected described reactor intake pump with on the pipeline of described mixing tank, the pipeline that is connected described reactor intake pump and described reactor is all provided with valve.
Preferably, the utility model also comprises the first return line and is arranged on the valve on described first return line, and described mixing tank is connected by described first return line with the pipeline be connected between described reactor intake pump and described reactor.
Preferably, described dense water pipe is connected by the second return line with the pipeline being connected to described reactor and described circularly-supercharged pump.
Further, described reactor also comprises the ultraviolet lamp being arranged on described case top.
Preferably, described ultraviolet lamp is extend the column ultraviolet lamp to the bottom of described housing, and the end of described ultraviolet lamp and the bottom of described housing keep spacing.
Preferably, the diaphragm of described film post is ultra-filtration membrane or nanofiltration membrane.
Preferably, the diaphragm of described film post is made up of PVDF or PTFE.
The beneficial effects of the utility model are:
Solid catalyst can be dispersed in water by the utility model, gives full play to the feature that specific surface area of catalyst is large, catalytic efficiency is high, and by catalyzer efficient recovery, can reduce the Financial cost of catalyzed oxidation, coordinate ultraviolet light source to irradiate, reach best catalytic effect, select nano level granules of catalyst, be distributed in the sewage that need process, what then pass into ozone waits oxidizing substance, and with ultra violet lamp, abundant reaction, after reaching best catalytic effect, catalyzer and the mixture of water enter film post and are separated, film post can adopt ultra-filtration membrane and nanofiltration membrane according to the size of granules of catalyst, adopt PVDF, the film material that the antioxidant properties such as PTFE are strong, and the cross-flow flow velocity on film surface is strengthened by dense water internal recycle pattern, avoid catalyzer at film surface deposition, the Main Function of film post is separated catalyzer and water, also can retain part macromolecule contaminant simultaneously, the catalyzer retained and pollutent form concentrated solution, concentrated solution is back to front end and again enters reactor oxidizing reaction, recycle catalyzer on the one hand, on the other hand to not having the pollutent of oxidized degraded to be again oxidized, the contaminant removal efficiency increased.Because the uniform pore diameter densification of film effectively can prevent the loss of catalyzer, thus achieve the catalyzed oxidation form that catalyzer is dispersed in water.
Accompanying drawing explanation
Fig. 1 is the fundamental diagram of the sewage disposal device of catalyst recovery of the present utility model.
In figure: 1, former water pot; 2, water inlet topping-up pump; 3, cartridge filter; 4, mixing tank; 5, reactor intake pump; 6, ozone diffuser; 7, reactor; 8, ultraviolet lamp; 9, circularly-supercharged pump; 10, film post; 11, dense water valve; 12, dense water pipe; 13, the first return line; 14, the second return line; 15, valve.
Embodiment
Preferred implementation
The sewage treatment process of catalyst recovery, in turn includes the following steps:
S1, nano level catalyzer to be rendered in sewage dispersedly;
S2, sewage is made to flow into film post through the water-in of film post;
The concentrated solution of S3, film post is transported in the sewage in the front of the water-in of film post by the road.The nano level catalyzer of solid is dispersed in water, give full play to the feature that specific surface area of catalyst is large, catalytic efficiency is high, by film post by catalyzer efficient recovery, and the catalyzer reclaimed joins in pending sewage, continue catalyzed oxidation, reduce the Financial cost of catalyzed oxidation.
As shown in Figure 1, a kind of sewage disposal device of catalyst recovery, comprise the mixing tank 4, reactor 7 intake pump 5, reactor 7, circularly-supercharged pump 9 and the film post 10 that are connected successively by pipeline, wherein: mixing tank 4 offers the charging opening for adding catalyzer (B in figure) in it, circularly-supercharged pump 9 is connected by the water-in of pipeline with film post 10, the concentrated solution mouth of film post 10 is connected with mixing tank by dense water pipe 12, dense water pipe 12 is provided with dense water valve 11, and reactor 7 comprises a housing and is arranged on the ozone diffuser 6 of housing bottom.Solid catalyst is dispersed in water, and gives full play to the feature that specific surface area of catalyst is large, catalytic efficiency is high, and can by catalyzer efficient recovery, reduce the Financial cost of catalyzed oxidation, by passing into ozone (C in figure) in reactor 7, to ensure oxidation, thus dispose of sewage.
Mixing tank 4 is connected with cartridge filter 3 in turn by pipeline, water inlet topping-up pump 2 and former water pot 1, treatment sewage is delivered in described former water pot 1 by the road, former water pot 1 is set, be convenient to store former water and (namely pollute pending water, A in figure), with prevent former water to carry out discharge too small and prevent the flow of the water of former water excessive while processing not and cause the hydraulic pressure in pipeline excessive, play shock absorption, be stored in former water pot 1 when flow is excessive, the former water be stored in when the flow rate is excessively small in former water pot 1 can ensure treatment capacity of the present utility model again, play " reservoir " away from, water inlet topping-up pump 2 is set, the raw water pump flowed out in former water pot 1 is entered cartridge filter 3, cartridge filter 3 filters out the particulate matter in former water, prevent particulate matter to the damage of pipeline or follow-up each water disposal device, to improve work-ing life of the present utility model and to ensure its steady running.
The pipeline connecting former water pot 1 and water inlet topping-up pump 2 is arranged on the bottom of former water pot 1, the pipeline connecting cartridge filter 3 and mixing tank 4 is arranged on the bottom of mixing tank 4, the pipeline connecting mixing tank 4 and reactor 7 intake pump 5 is arranged on the bottom of mixing tank 4, connect the anti-bottom causing the pipeline of intake pump and reactor 7 to be arranged on housing, connect and instead cause the bottom being arranged on reactor 7 with the pipeline of circularly-supercharged pump 9.The pipeline connecting former water pot 1, mixing tank 4 and reactor 7 is all arranged on respective bottom, to ensure that the water of respective bottom all can be carried with pipeline backward, untreated water can not be participated in respective bottom, further, water flows out from bottom, improve the stirring effect to inside, be beneficial to the contact of catalyst converter and pollutent.
Connect water inlet topping-up pump 2 with on the pipeline of former water pot 1, is connected and intakes on the pipeline of topping-up pump 2 and cartridge filter 3, on the pipeline of ligation device 7 intake pump 5 and mixing tank 4, the pipeline of ligation device 7 intake pump 5 and reactor 7 is all provided with valve 15.By opening and closing corresponding valve 15, conveniently water inlet topping-up pump 2, former water pot 1, cartridge filter 3, mixing tank 4 and reactor 7 being safeguarded and being changed; Simultaneously by the aperture of regulated valve 15, the flow by the water in respective line can be controlled, with satisfied diversified needs.
The valve 15 that the utility model also comprises the first return line 13 and is arranged on described first return line 13, mixing tank is connected by the first return line 13 with the pipeline between ligation device 7 intake pump 5 and reactor 7.By the first return line 13, mixing tank is connected with the pipeline be connected between reactor 7 and mixing tank 4, the a part of water flowed out from the pipeline be connected between mixing tank and reactor 7 is made to be back to mixing tank 4 through the first return line 13, play the effect of being uniformly mixed, be conducive to catalyzer to spread in water, to improve treatment effect.
Dense water pipe 12 is connected by the second return line 14 with the pipeline being connected to reactor 7 and circularly-supercharged pump 9.Catalyst filtration in water is retained down by film post 10 becomes concentrated solution, and the concentrated solution that film post 10 produces is divided into two portions, and a part enters the second return line 14, is back to the water-in of circularly-supercharged pump 9; Another part is back to mixing tank 4 by dense water valve 11, completes the recovery of catalyzer, and dense water valve 11 can control concentrated solution output by adjustment aperture, and the permeate of film post 10 is produced water (D in figure) as system and discharged.
Reactor 7 also comprises the ultraviolet lamp 8 being arranged on case top.Ozone diffuser 6 and ultraviolet lamp 8 is established in reactor 7, ozone is passed into from bottom, form the pollutent in tiny bubble and water by ozone diffuser 6, under the effect of catalyzer, oxidizing reaction occurs, owing to there is no blocking of the objects such as filler, the ultraviolet that ultraviolet lamp 8 produces can be irradiated to each corner of reactor 7, and ultraviolet serves further katalysis to oxidizing reaction.The water outlet of reactor 7 enters film post 10 by pipeline, film post 10 is made up of equipment such as circularly-supercharged pump 9, film post 10, dense water valves 11, adopts dense water internal recycle pattern (namely by dense water pipe 12 by a part of concentrate recirculation to mixing tank 4) to improve treatment effect to sewage.
Ultraviolet lamp 8 is extend the column ultraviolet lamp 8 to the bottom of housing, and the end of ultraviolet lamp 8 and the bottom of housing keep spacing.Ultraviolet lamp 8 is arranged the column extended to the bottom of housing, make the position of different depths in housing all can obtain the irradiation of ultraviolet lamp 8, ensure the treatment effect to sewage with this.
Principle of work of the present utility model is: sewage is along the direction of arrow in Fig. 1, first sewage pumps into former water pot 1 by pipeline, connected with water inlet topping-up pump 2 entrance by pipeline bottom former water pot 1, pipeline is provided with valve 15 and facilitates water pump to overhaul, water inlet topping-up pump 2 is exported and is connected with cartridge filter 3 entrance by pipeline, the water outlet of cartridge filter 3 enters mixing tank 4, catalyzer is added in mixing tank 4, connected with reactor 7 intake pump 5 entrance by pipeline bottom mixing tank 4, pipeline is provided with valve 15 and facilitates water pump to overhaul, reactor 7 intake pump 5 is exported and is connected with former water pot 1 top and reactor 7 entrance by pipeline, pipeline is established valve 15 control assignment of traffic, the first return line 13 wherein getting back to former water pot 1 plays the effect of being uniformly mixed, be conducive to catalyzer to spread in water.Ozone diffuser 6 and ultraviolet lamp 8 is established in reactor 7, ozone is passed into from bottom, form the pollutent in tiny bubble and water by ozone diffuser 6, under the effect of catalyzer, oxidizing reaction occurs, owing to there is no blocking of the objects such as filler, the ultraviolet that ultraviolet lamp 8 produces can be irradiated to each corner of reactor 7, and ultraviolet serves further katalysis to oxidizing reaction.The water outlet of reactor 7 enters film post 10 by pipeline, adopt dense water internal recycle pattern (namely by dense water pipe 12, a part of concentrate recirculation is interior to mixing tank 4), after the supercharging of circularly-supercharged pump 9, entering film post 10 after reactor 7 water outlet mixes with the concentrated solution of internal recycle, (film post 10 can select ultra-filtration membrane and nanofiltration membrane according to catalyst particle size size, film selects the film material that the oxidation-resistance such as PVDF (polyvinylidene difluoride (PVDF)) or PTFE (tetrafluoroethylene) is stronger), catalyst filtration in water is retained down by film post 10 becomes concentrated solution, the concentrated solution that film post 10 produces is divided into two portions, a part enters the second return line 14, be back to the water-in of circularly-supercharged pump 9, another part is back to mixing tank 4 by dense water valve 11, completes the recovery of catalyzer, and dense water valve 11 can control concentrated solution output by adjustment aperture, and the permeate of film post 10 is produced water as system and discharged.
Claims (9)
1. the sewage disposal device of catalyst recovery, it is characterized in that, comprise the mixing tank, reactor intake pump, reactor, circularly-supercharged pump and the film post that are connected successively by pipeline, wherein: described mixing tank offers the charging opening for adding nano level catalyzer in it, described circularly-supercharged pump is connected by the water-in of pipeline with described film post, the concentrated solution mouth of described film post is connected with described mixing tank by dense water pipe, described dense water pipe is provided with dense water valve, and described reactor comprises a housing and is arranged on the ozone diffuser of described housing bottom.
2. the sewage disposal device of catalyst recovery according to claim 1, is characterized in that, described mixing tank is connected with cartridge filter, water inlet topping-up pump and former water pot in turn by pipeline, and treatment sewage is delivered in described former water pot by the road.
3. the sewage disposal device of catalyst recovery according to claim 2, it is characterized in that, connect described water inlet topping-up pump with on the pipeline of described former water pot, be connected described water inlet topping-up pump with on the pipeline of described cartridge filter, be connected described reactor intake pump with on the pipeline of described mixing tank, the pipeline that is connected described reactor intake pump and described reactor is all provided with valve.
4. the sewage disposal device of catalyst recovery according to claim 2, it is characterized in that, also comprise the first return line and be arranged on the valve on described first return line, described mixing tank is connected by described first return line with the pipeline be connected between described reactor intake pump and described reactor.
5. the sewage disposal device of the catalyst recovery according to any one of claim 2-4, is characterized in that, described dense water pipe is connected by the second return line with the pipeline being connected to described reactor and described circularly-supercharged pump.
6. the sewage disposal device of catalyst recovery according to claim 5, is characterized in that, described reactor also comprises the ultraviolet lamp being arranged on described case top.
7. the sewage disposal device of catalyst recovery according to claim 6, is characterized in that, described ultraviolet lamp is extend the column ultraviolet lamp to the bottom of described housing, and the end of described ultraviolet lamp and the bottom of described housing keep spacing.
8. the sewage disposal device of catalyst recovery according to claim 5, is characterized in that, the diaphragm of described film post is ultra-filtration membrane or nanofiltration membrane.
9. the sewage disposal device of catalyst recovery according to claim 8, is characterized in that, the diaphragm of described film post is made up of PVDF or PTFE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520723811.4U CN205170577U (en) | 2015-09-17 | 2015-09-17 | Sewage treatment device that catalyst was retrieved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520723811.4U CN205170577U (en) | 2015-09-17 | 2015-09-17 | Sewage treatment device that catalyst was retrieved |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205170577U true CN205170577U (en) | 2016-04-20 |
Family
ID=55734592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520723811.4U Active CN205170577U (en) | 2015-09-17 | 2015-09-17 | Sewage treatment device that catalyst was retrieved |
Country Status (1)
| Country | Link |
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| CN (1) | CN205170577U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174572A (en) * | 2015-09-17 | 2015-12-23 | 北京合创天地环保科技有限公司 | Sewage treatment process and equipment for recycling catalysts |
| CN107930235A (en) * | 2017-11-30 | 2018-04-20 | 安徽工业大学 | Fine catalyst efficiently separates the device of simultaneously automatic cycle during a kind of catalytic oxidation treatment sewage |
| CN113213656A (en) * | 2021-03-23 | 2021-08-06 | 高和平 | Novel system for treating coking wastewater by catalytic oxidation method |
-
2015
- 2015-09-17 CN CN201520723811.4U patent/CN205170577U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174572A (en) * | 2015-09-17 | 2015-12-23 | 北京合创天地环保科技有限公司 | Sewage treatment process and equipment for recycling catalysts |
| CN107930235A (en) * | 2017-11-30 | 2018-04-20 | 安徽工业大学 | Fine catalyst efficiently separates the device of simultaneously automatic cycle during a kind of catalytic oxidation treatment sewage |
| CN107930235B (en) * | 2017-11-30 | 2019-10-29 | 安徽工业大学 | Fine catalyst efficiently separates and the device of automatic cycle during a kind of catalytic oxidation treatment sewage |
| CN113213656A (en) * | 2021-03-23 | 2021-08-06 | 高和平 | Novel system for treating coking wastewater by catalytic oxidation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160729 Address after: 100176, No. 10, Ronghua Road, Beijing economic and Technological Development Zone, 17 floor, block A, City International Center Patentee after: BEIJING TDR ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Address before: 100176 Beijing City, Daxing District Hondar Beijing economic and Technological Development Zone, Road No. 5 Building 1 room 504 Patentee before: BEIJING HECHUANGTIANDI ENVIRONMENTAL PROTECTION SCIENCE AND TECHNOLOGY CO.,LTD. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 14th Floor, Building A16, Financial Port Center, No. 4872 Huizhou Avenue, Baohe District, Hefei City, Anhui Province Patentee after: Lu Xin Tian Di Ren Environmental Technology (Anhui) Group Co.,Ltd. Address before: 100176, 17th Floor, Building A, Yicheng International Center, No. 10 Ronghua Middle Road, Beijing Economic and Technological Development Zone Patentee before: BEIJING TDR ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. |