CN214360640U - Active coke adsorption high-density clarification tank - Google Patents
Active coke adsorption high-density clarification tank Download PDFInfo
- Publication number
- CN214360640U CN214360640U CN202022586433.3U CN202022586433U CN214360640U CN 214360640 U CN214360640 U CN 214360640U CN 202022586433 U CN202022586433 U CN 202022586433U CN 214360640 U CN214360640 U CN 214360640U
- Authority
- CN
- China
- Prior art keywords
- active coke
- coke
- tank
- sludge
- active
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000571 coke Substances 0.000 title claims abstract description 127
- 238000005352 clarification Methods 0.000 title claims abstract description 27
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000010802 sludge Substances 0.000 claims abstract description 42
- 238000005345 coagulation Methods 0.000 claims abstract description 27
- 230000015271 coagulation Effects 0.000 claims abstract description 27
- 238000005189 flocculation Methods 0.000 claims abstract description 24
- 230000016615 flocculation Effects 0.000 claims abstract description 24
- 239000000701 coagulant Substances 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims description 18
- 239000008394 flocculating agent Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 9
- 239000010865 sewage Substances 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 4
- 239000006228 supernatant Substances 0.000 claims description 4
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 3
- 239000011630 iodine Substances 0.000 claims description 3
- 229910052740 iodine Inorganic materials 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Landscapes
- Water Treatment By Sorption (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
An activated coke adsorption high-density clarification tank comprises a water inlet, a coagulant adding point, a coagulation reaction tank, a flocculant adding point, an adding reaction tank, a flocculation tank, a settling zone, a sludge discharge port and a water outlet, and the clarification tank also comprises an activated coke adding point; the active coke feeding point is arranged in the feeding reaction tank; the active coke feeding point is set to feed active coke into the water body treated by the coagulation reaction tank.
Description
Technical Field
The present disclosure relates to an activated coke adsorption high density clarifier.
Background
The clarification tank is a structure which utilizes mutual collision and contact of sludge accumulated in the tank body and suspended matter particles in sewage for coalescence to form flocs with larger particles and then sink in a settling zone, thereby achieving rapid sludge-water separation. The sludge circulating type clarification tank is a widely applied technology in the field of water treatment. The high-density clarification tank is used as a sludge circulation type clarification tank, the clarification tank is provided with a coagulation and flocculation unit and a clarification and sludge concentration unit, a coagulant and a flocculant are added into the coagulation and flocculation unit, suspended matters in raw water are fully contacted with returned sludge under the action of the coagulant, and form larger easily-precipitated flocs under the action of the flocculant, then the flocs enter the clarification and concentration unit, most of the flocs are separated from water, precipitated, separated and fall to a sludge collection device. The treatment process enhances the flocculation effect of suspended matters, has higher ascending flow rate and hydraulic load, and has the advantages of large surface hydraulic load, good flocculation effect, high sludge concentration, small tank body floor area and good effluent quality compared with the conventional clarification process.
Along with the gradual increase of the application range of the high-density clarification tank process, the application scenes of the high-density clarification tank are richer and richer, and the problem of water quality needs to be solved more and more. For example, in some water plant upgrading projects, the site is very limited, the occupied area of the high-density clarification tank needs to be further reduced, or in some places with poor inlet water quality, organic pollutants to be treated still exist in the water body, at this time, the high-density clarification tank needs to remove not only suspended matters in the water, but also organic matters in the water, and the conventional high-density clarification tank cannot meet the treatment requirements. Therefore, a new high-density clarification tank with high treatment load, smaller floor area and the capability of removing organic matters in water is needed.
SUMMERY OF THE UTILITY MODEL
In order to solve one or more defects in the prior art, according to one aspect of the present disclosure, an activated coke adsorption high-density clarification tank is provided, which includes a water inlet, a coagulant adding point, a coagulation reaction tank, a flocculant adding point, a feeding reaction tank, a flocculation tank, a settling zone, a sludge discharge port, and a water outlet.
The clarification tank also comprises an active coke feeding point. The active coke feeding point is arranged in the feeding reaction tank.
The active coke feeding point is set to feed active coke into the water body treated by the coagulation reaction tank.
According to the above aspect of the present disclosure, the clarifier further includes an activated coke separating device and a sludge circulating pipe.
The sludge circulating pipe discharges the sludge containing the activated coke to the activated coke separating device.
The activated coke separating device separates activated coke from sludge and supplies the separated activated coke to the activated coke feeding point.
According to the above aspects of the present disclosure, the active coke separation device is provided as one stage.
The separation flow ratio of the active coke separation device is 3: 1.
According to the various aspects of the disclosure, the density of the active coke is 2.0g/cm3, the effective particle size is 80-100 μm, and the iodine value is 500-700 mg/g.
According to the above aspects of the disclosure, the concentration of the active coke fed by the active coke feeding point is determined according to the water quality of the water body.
The concentration of the active coke is 1-4 g/L.
According to the above aspects of the present disclosure, the flocculant adding point and the active coke adding point are disposed at the same position, so that when the active coke is added at the active coke adding point, the flocculant is added at the same time at the flocculant adding point.
According to the above aspects of the disclosure, after the sewage enters the clarification tank from the water inlet, the coagulant adding point adds a coagulant into the coagulation reaction tank, and the coagulation reaction is performed in the coagulation reaction tank under the action of the stirrer.
According to the above aspects of the present disclosure, the water after the coagulation reaction enters the feeding reaction tank, and the active coke separated from the active coke separation device enters the feeding reaction tank through the feeding of the active coke feeding point.
The flocculating agent enables the active coke to enter the flocculation tank after the active coke is sufficiently combined with particles in the sewage in the feeding reaction tank to perform flocculation reaction so as to form flocs.
According to the above aspects of the disclosure, the flocculant feeding point is further configured to feed a flocculant to the flocculation tank, so as to further perform a flocculation reaction.
According to the above aspects of the present disclosure, the matured flocs with activated coke are separated from the water in a settling zone equipped with a chute.
The separated supernatant is discharged from the water outlet.
And the sludge containing the activated coke and sinking to the bottom of the settling zone is discharged to the activated coke separation device through the sludge circulating pipe.
The impurity sludge which is separated by the active coke separating device and does not contain the active coke is discharged from the sludge discharge port.
According to the technical scheme of the disclosure, the active coke is added as a carrier to enhance coagulation and flocculation effects, so that the sinking speed of flocs is increased, and meanwhile, the active coke has good adsorption performance and can remove part of organic matters in water. In addition, a recycling device is arranged, so that the recycling of the active coke is realized, and the operation cost is reduced.
Specifically, the technical advantages of the present disclosure are as follows:
active coke is added, and a condensed 'crystal nucleus' is provided for lighter suspended matters in water due to the intervention of a heavy carrier, so that the suspended matters are easier to gather and are firmly combined, and the flocculation effect is improved.
The density of the active coke is higher than that of water, so that the active coke plays a role of ballast, the sedimentation speed of floc is accelerated, and a good treatment effect can still be kept under the condition that the rising flow rate of the water body is higher, so that the process has higher treatment load and smaller floor area.
Compared with other carriers, the activated coke has higher specific surface area and good adsorption performance, can remove partial organic matters (chemical oxygen demand, micro pollutants, heavy metals and chromaticity) in water, and forms a complementary effect on the removal of specific pollutants. Compared with the traditional active carbon with the same adsorption effect, the special mesoporous structure of the active coke has obvious adsorption effect on macromolecular refractory organic matters and low price.
And a circulating recovery device is arranged to reflux the sludge formed by the active coke, and the active coke can be returned to the treatment process again through the separator. Part of the active coke which is not adsorbed and saturated can be recycled, and new active coke is not required to be added all the time, so that the operation cost is greatly reduced by the measure.
Compared with common carriers such as quartz sand, garnet and other mineral powder substances, the active coke has small abrasion to equipment, does not need additional technical requirements on the equipment and a pump body, and can reduce the investment cost and the subsequent maintenance cost of the equipment.
So that the manner in which the disclosure is made in detail herein can be better understood, and in which the contributions to the art may be better appreciated, the disclosure has been summarized rather broadly.
As such, those skilled in the art will appreciate that the conception upon which this disclosure is based may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present disclosure.
Drawings
The present disclosure will be better understood and its advantages will become more apparent to those skilled in the art from the following drawings. The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations and are not intended to limit the scope of the present disclosure.
Fig. 1 shows a schematic view of a clarifier for wastewater treatment according to the present disclosure.
Detailed Description
Specific embodiments according to the present disclosure are described in detail below with reference to the accompanying drawings.
According to an embodiment of the disclosure, an activated coke adsorption high-density clarifier is provided, as shown in fig. 1, the clarifier includes a water inlet 1, a coagulant adding point 2, a coagulation reaction tank 3, a flocculant adding point 6, an adding reaction tank 7, a flocculation tank 8, a settling zone 9, a sludge discharge port 11 and a water outlet 12.
The clarification tank also comprises an active coke feeding point 4. The active coke feeding point 4 is arranged in the feeding reaction tank 7.
The active coke feeding point 4 is set to feed active coke into the water body treated by the coagulation reaction tank 3.
According to the above embodiment of the present disclosure, the clarifier further includes an activated coke separating device 5 and a sludge circulating pipe 10.
The sludge circulation pipe 10 discharges the sludge containing the activated coke to the activated coke separation apparatus 5.
The activated coke separating device 5 separates activated coke from sludge, and then supplies the separated activated coke to the activated coke feeding point 4.
According to the above-described respective embodiments of the present disclosure, the active coke-separating device 5 is provided as one stage.
The separation flow ratio of the active coke separation device 5 is 3: 1.
According to the various embodiments of the present disclosure, the density of the active coke is 2.0g/cm3, the effective particle size is 80-100 μm, and the iodine value is 500-700 mg/g.
According to the various embodiments of the present disclosure, the number of the active coke feeding points 4 for feeding the active coke is determined according to the water quality of the water body.
The amount of the active coke added is 1 to 4 g/L.
According to the above embodiments of the present disclosure, the amount of the flocculant to be added at the flocculant adding point 6 is determined according to the water quality of the water body.
The amount of the flocculant added is 0.2-1.5 mg/L.
According to the above embodiments of the present disclosure, the flocculant adding point 6 and the active coke adding point 4 are disposed at the same position (disposed in the adding reaction tank 7), so that when the active coke is added at the active coke adding point 4, the flocculant adding point 6 simultaneously adds a flocculant.
According to the above embodiments of the present disclosure, after the sewage enters the clarification tank from the water inlet 1, the coagulant adding point 2 adds a coagulant into the coagulation reaction tank 3, and the coagulation reaction is performed in the coagulation reaction tank 3 by the action of the stirrer.
According to the above embodiments of the present disclosure, the water body after the coagulation reaction enters the feeding reaction tank 7, and the active coke separated from the active coke separation device 5 enters the feeding reaction tank 7 through the feeding of the active coke feeding point 4.
The flocculating agent enables the active coke to enter the flocculation tank 8 after the active coke is sufficiently combined with particles in the sewage in the dosing reaction tank 7 to perform flocculation reaction so as to form flocs.
According to the above embodiments of the present disclosure, the flocculant adding point 6 is further configured to add a flocculant to the flocculation tank 8, so as to further perform a flocculation reaction.
According to the above-described embodiments of the present disclosure, the matured flocs with activated coke are separated from the water in a settling zone 9 equipped with an inclined tube (not shown).
The separated supernatant is discharged from the water outlet 12.
The sludge containing the activated coke which has sunk to the bottom of the settling zone 9 (the conical bottom of the settling zone 9 as shown in fig. 1) is discharged to the activated coke-separating means 5 through the sludge circulation pipe 10.
The impurity sludge not containing the activated coke separated by the activated coke separating device 5 is discharged from the sludge discharge port 11.
According to the disclosure, after sewage enters a coagulation reaction tank 3 from a water inlet 1, a coagulant is added through a coagulant adding point 2, coagulation reaction is promoted under the action of a stirrer, after the coagulation reaction is completed for about two minutes, the sewage enters an adding reaction tank 7, active coke separated from an active coke separating device 5 is added at the active coke adding point 4, the adding amount is determined according to water quality and is about 1-4g/L, meanwhile, a flocculating agent is added through a flocculating agent adding point 6, the adding range of the flocculating agent is 0.2-1.5 mg/L according to the water quality condition, the flocculating agent enables the active coke to be fully combined with other particles in the adding reaction tank 7, and then the active coke enters a flocculating tank 8 to further enable flocs to grow up. In order to prevent the insufficient flocculation reaction, a flocculant adding point 6 is added, the cured flocs with active coke are subjected to mud-water separation in a settling zone 9 provided with an inclined tube, the supernatant is discharged from a water outlet 12, the sludge with the active coke at the bottom of the sludge sinks and is discharged to an active coke separation device 5 through a sludge circulating tube 10, the active coke separation device 5 separates the active coke from the sludge and recycles the activated coke, and other impurity sludge is discharged from a sludge discharge port 11.
According to the embodiment of the disclosure, the active coke is added, the coagulation and flocculation effects are enhanced by taking the active coke as a carrier, the sinking speed of flocs is increased, and meanwhile, the active coke has good adsorption performance and can remove part of organic matters in water. In addition, a recycling device is arranged, so that the recycling of the active coke is realized, and the operation cost is reduced.
Compared with active carbon, the active carbon has more macropores and mesopores, and is more favorable for adsorbing organic matters. The activated coke has high mechanical strength, is not easy to break in the using and regenerating processes, reduces the mechanical loss and the regenerating cost in the regenerating process, and the raw materials of the activated coke are coke and blue carbon, and the production cost of the activated coke is 50 to 70 percent lower than that of the activated carbon.
The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the embodiments to the precise form disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of the embodiments.
Even though particular combinations of features are recited in the claims and/or disclosed in the specification, these combinations are not intended to limit the disclosure of the various embodiments. In fact, many of these features may be combined in ways not specifically recited in the claims and/or disclosed in the specification. Although each dependent claim listed below may depend directly on only one claim, the disclosure of various embodiments includes each dependent claim in combination with every other claim in the claim set.
No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. In addition, as used herein, the articles "a" and "an" are intended to include one or more items, and may be used interchangeably with "one or more". Further, as used herein, the article "the" is intended to include the incorporation of one or more items referenced by the article "the" and may be used interchangeably with "one or more". Further, as used herein, the term "set" is intended to include one or more items (e.g., related items, unrelated items, combinations of related and unrelated items, etc.) and may be used interchangeably with "one or more". Where only one item is intended, the phrase "only one item" or similar language is used. In addition, as used herein, the term "having," variants thereof, and the like are intended to be open-ended terms. Further, the phrase "based on" is intended to mean "based, at least in part, on" unless explicitly stated otherwise. In addition, as used herein, the term "or" when used in series is intended to be inclusive and may be used interchangeably with "and/or" unless specifically stated otherwise (e.g., if used in conjunction with "or" only one of ").
Claims (9)
1. An activated coke adsorption high-density clarification tank, which comprises a water inlet (1), a coagulant adding point (2), a coagulation reaction tank (3), a flocculant adding point (6), a feeding reaction tank (7), a flocculation tank (8), a sedimentation zone (9), a sludge discharge port (11) and a water outlet (12),
the clarification tank also comprises an active coke feeding point (4);
the active coke feeding point (4) is arranged in the feeding reaction tank (7);
the active coke feeding point (4) is arranged to feed active coke into the water body treated by the coagulation reaction tank (3).
2. The clarifier according to claim 1,
the clarification tank also comprises an active coke separation device (5) and a sludge circulating pipe (10);
the sludge circulating pipe (10) discharges sludge containing the active coke to the active coke separating device (5);
the activated coke separation device (5) separates activated coke from sludge, and supplies the separated activated coke to the activated coke feeding point (4).
3. The clarifier according to claim 2,
the active coke separation device (5) is arranged as a first stage.
4. The clarifier according to claim 2,
the density of the active coke is 2.0g/cm3The effective particle diameter is 80 to 100 μm, and the iodine value is 500 to 700 mg/g.
5. The clarifier according to claim 4,
the flocculating agent feeding point (6) and the active coke feeding point (4) are arranged at the same position, so that when active coke is fed at the active coke feeding point (4), flocculating agents are fed at the flocculating agent feeding point (6) at the same time.
6. The clarifier according to claim 5,
after sewage enters the clarification tank from the water inlet (1), a coagulant is added into the coagulation reaction tank (3) by the coagulant adding point (2), and coagulation reaction is carried out in the coagulation reaction tank (3) under the action of a stirrer.
7. The clarifier according to claim 6,
the water body after coagulation reaction enters the feeding reaction tank (7), and the active coke separated from the active coke separating device (5) enters the feeding reaction tank (7) through the feeding of the active coke feeding point (4);
the flocculating agent enables the active coke to enter the flocculation tank (8) after the active coke is sufficiently combined with particles in the sewage in the dosing reaction tank (7) to perform flocculation reaction so as to form flocs.
8. The clarifier according to claim 7,
the flocculating agent feeding point (6) is also set to feed flocculating agent into the flocculation tank (8) so as to further carry out flocculation reaction.
9. The clarifier according to claim 8,
the cured floc with the active coke is subjected to mud-water separation in a settling zone (9) provided with an inclined tube;
the separated supernatant is discharged from the water outlet (12);
the sludge containing the activated coke which sinks to the bottom of the settling zone (9) is discharged to the activated coke separation device (5) through the sludge circulating pipe 10;
the impurity sludge which is separated by the activated coke separating device (5) and does not contain activated coke is discharged from the sludge discharge port (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022586433.3U CN214360640U (en) | 2020-11-10 | 2020-11-10 | Active coke adsorption high-density clarification tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022586433.3U CN214360640U (en) | 2020-11-10 | 2020-11-10 | Active coke adsorption high-density clarification tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214360640U true CN214360640U (en) | 2021-10-08 |
Family
ID=77976557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022586433.3U Active CN214360640U (en) | 2020-11-10 | 2020-11-10 | Active coke adsorption high-density clarification tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214360640U (en) |
-
2020
- 2020-11-10 CN CN202022586433.3U patent/CN214360640U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6230597A (en) | Method of separating clarified liquid from biomass on biological treatment of waste water | |
| CN100579917C (en) | Three-phase cyclone separator and cleaning treatment system for oil-containing water | |
| CN101648086B (en) | Rapid precipitating method and rapid precipitating and separating device | |
| US7691269B2 (en) | Method and system for retrofitting an existing water treatment system | |
| CN107082506B (en) | Treatment method and process flow for oilfield produced water | |
| CN104724874A (en) | Sewage pretreatment method | |
| JP4707752B2 (en) | Water treatment method and water treatment system | |
| JP6626888B2 (en) | Wastewater clarification method | |
| CN212655629U (en) | Magnetic medium coagulating sedimentation system | |
| CN214360640U (en) | Active coke adsorption high-density clarification tank | |
| CN201410314Y (en) | Novel inclined tube settling tank | |
| JP2002086157A (en) | Flocculating and settling method and device therefor | |
| KR19980043088A (en) | Water treatment system and method linking sedimentation and flotation | |
| KR20140099060A (en) | Highrate clarifier filtration and tunnel construction wastewater treatment system using the same | |
| CN113683167B (en) | Magnetic coagulation sedimentation sewage treatment system and method based on low-density magnetic particles | |
| CN1064648C (en) | Sewage treatment technology and equipment using refined diatomite as treating agent | |
| CN2776990Y (en) | Cyclon clarifying device for continuous treating electropating waste water | |
| CN214087854U (en) | Functional multi-effect clarification system | |
| CN104529045A (en) | Decentralized sewage treatment method in rural township | |
| CN204569618U (en) | Oilfield sewage treatment device | |
| CN211688581U (en) | Integrated multi-effect clarification system | |
| KR101885134B1 (en) | waste water continual system and method | |
| KR101045878B1 (en) | High-efficiency hybrid sedimentation basin for processing water elevation | |
| CN214829577U (en) | Active coke adsorption ballast type high-density sedimentation tank | |
| CN204569617U (en) | Heavily flocculate carrier waste disposal plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 3101, 27th Floor, Building 1, Yard 38, East 3rd Ring North Road, Chaoyang District, Beijing, 100026 Patentee after: Suez Environmental Technology (Beijing) Co.,Ltd. Address before: 100026 31 / F, Taikang financial building, building 1, courtyard 38, East Third Ring Road North, Chaoyang District, Beijing Patentee before: Suez Water Treatment Co,.Ltd. |