CN213679897U - Utilize device of nitrogen phosphorus in struvite crystallization method recovery waste water - Google Patents
Utilize device of nitrogen phosphorus in struvite crystallization method recovery waste water Download PDFInfo
- Publication number
- CN213679897U CN213679897U CN202022569902.0U CN202022569902U CN213679897U CN 213679897 U CN213679897 U CN 213679897U CN 202022569902 U CN202022569902 U CN 202022569902U CN 213679897 U CN213679897 U CN 213679897U
- Authority
- CN
- China
- Prior art keywords
- pipe
- reaction box
- threaded rod
- jacket
- water inlet
- 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.)
- Expired - Fee Related
Links
- CKMXBZGNNVIXHC-UHFFFAOYSA-L ammonium magnesium phosphate hexahydrate Chemical compound [NH4+].O.O.O.O.O.O.[Mg+2].[O-]P([O-])([O-])=O CKMXBZGNNVIXHC-UHFFFAOYSA-L 0.000 title claims abstract description 21
- 229910052567 struvite Inorganic materials 0.000 title claims abstract description 21
- 239000002351 wastewater Substances 0.000 title claims abstract description 19
- 238000002425 crystallisation Methods 0.000 title claims abstract description 17
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 title description 7
- 238000011084 recovery Methods 0.000 title description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000010865 sewage Substances 0.000 claims abstract description 22
- 238000005507 spraying Methods 0.000 claims abstract description 22
- 239000003814 drug Substances 0.000 claims abstract description 15
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 14
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 14
- 239000011574 phosphorus Substances 0.000 claims abstract description 14
- 238000007790 scraping Methods 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims description 26
- 239000012535 impurity Substances 0.000 abstract description 8
- 238000011012 sanitization Methods 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 4
- 239000007921 spray Substances 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000009388 chemical precipitation Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002050 diffraction method Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Landscapes
- Removal Of Specific Substances (AREA)
Abstract
A device for recovering nitrogen and phosphorus in wastewater by using a struvite crystallization method comprises a reaction box, a sewage pipe, a medicine inlet pipe, a drain pipe, a slide bar, a lifting rod, a threaded rod, a scraper and a connecting pipe; the sewage pipe, the medicine inlet pipe and the water outlet pipe are all arranged on the reaction box and are communicated with the inside of the reaction box; the slide bar is arranged at the upper end of the reaction box; the threaded rod is in threaded connection with the reaction box; the scraping plate is arranged on the threaded rod; the lifting rod is provided with a driving mechanism for driving the threaded rod to rotate; a water inlet channel is arranged inside the threaded rod; a spraying channel and a spraying hole are formed in the scraper; the water inlet channel is communicated with the spraying channel; the connecting pipe is arranged at the upper end of the water inlet channel. The utility model discloses a driving mechanism drive scraper blade is from last to scraping hardening in the reaction vessel down in proper order, sprays hole blowout clear water with the reaction box inner wall sanitization, and impurity after the washing is discharged through the drain pipe with water together, the convenient clearance of intaking to the reaction box inside.
Description
Technical Field
The utility model relates to a sewage treatment device technical field especially relates to an utilize device of nitrogen phosphorus in struvite crystallization method recovery waste water.
Background
Struvite crystallization precipitation (MAP) is an emerging green and economic technology developed on the chemical precipitation technology. Compared with the traditional chemical precipitation technology, the method has the characteristics of low cost, good treatment effect, simple operation, no secondary pollution and the like, and is a high-efficiency, economic and ecologically sustainable treatment technology. The struvite crystallization precipitation method can be used for removing and recovering nitrogen and phosphorus in the wastewater, and the operating cost of a wastewater treatment plant can be reduced.
The produced struvite crystal body of device of nitrogen phosphorus in current struvite crystal method recovery waste water is more tiny, and the settlement separation needs the certain time from the aquatic, is reducing nitrogen phosphorus efficiency in the recovery waste water, and the struvite crystal body part that generates can adhere to and harden in the inside formation of reactor, influences the normal use of reactor body.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem that exists among the background art, the utility model provides an utilize device of nitrogen phosphorus in struvite crystallography recovery waste water, scrape under hardening in proper order the reaction barrel from last through actuating mechanism drive scraper blade, spray hole blowout clear water with the reaction box inner wall sanitization, impurity after the washing is together through the drain pipe discharge with water, the convenient clearance of intaking to the reaction box inside.
(II) technical scheme
The utility model provides a device for recovering nitrogen and phosphorus in wastewater by utilizing a struvite crystallization method, which comprises a reaction box, a sewage pipe, a medicine inlet pipe, a drain pipe, a slide bar, a lifting rod, a threaded rod, a scraper and a connecting pipe;
the sewage pipe, the medicine inlet pipe and the water outlet pipe are all arranged on the reaction box and are communicated with the inside of the reaction box; the two slide bars are symmetrically arranged at the upper end of the reaction box; two ends of the lifting rod are respectively arranged on the two sliding rods and are in sliding connection with the two sliding rods; one end of the threaded rod penetrates through the reaction box and is in threaded connection with the reaction box; the scraping plate is arranged in the reaction box in a sliding mode and arranged on the threaded rod; the lifting rod is provided with a driving mechanism for driving the threaded rod to rotate; a water inlet channel is arranged inside the threaded rod; a spraying channel and a spraying hole are formed in the scraper; two spraying channels and two spraying holes are arranged and are respectively positioned at two ends of the scraper; the water inlet channel is communicated with the spraying channel; the connecting pipe sets up in inhalant canal's upper end, and inhalant canal passes through connecting pipe and external water pipe intercommunication.
Preferably, the threaded rod is provided with a rotating part and a limiting part; two ends of the rotating part are respectively connected with the threaded rod and the limiting part; the rotating part is rotatably arranged on the lifting rod; the connecting pipe is sleeved on the limiting part.
Preferably, the connecting pipe comprises a first jacket, a second jacket, a water inlet pipe and a connecting platform; the lower end of the first jacket and the lower end of the second jacket are rotatably arranged on the outer peripheral side of the limiting part, and one end of the first jacket is rotatably connected with one end of the second jacket; two connecting tables are arranged and are respectively arranged at the other end of the first jacket and the other end of the second jacket; connecting bolts are arranged on the two connecting platforms; the inlet tube sets up in the upper end of first cover and the second cover of pressing from both sides, and the one end of inlet tube is located inhalant canal inside to rather than rotating and being connected.
Preferably, the driving mechanism comprises a first motor, a driving gear and a driven gear; the first motor is arranged on the lifting rod, the output end of the first motor is in driving connection with the driving gear, and the driving gear is in meshing connection with the driven gear; the driven gear is arranged on the threaded rod.
Preferably, the bottom of the reaction box is provided with a stirring mechanism; the stirring mechanism comprises a second motor and a stirring blade; the second motor is arranged at the bottom of the reaction box, and the output end of the second motor is in driving connection with the stirring blade; the stirring blade is positioned in the reaction box.
Preferably, the scraper is provided with a storage groove for storing the stirring blade.
Preferably, the drain pipe is provided with a valve.
Compared with the prior art, the above technical scheme of the utility model following profitable technological effect has:
in the utility model, sewage enters the reaction box from the sewage pipe, and the decomposition medicine enters the reaction box from the medicine inlet pipe and is mixed in the reaction box, so that nitrogen and phosphorus in the sewage are separated out into crystal particles which are discharged from the water discharge pipe together with the sewage; when part of impurities are adsorbed on the inner wall of the reaction box, the driving mechanism is started, the driving mechanism drives the threaded rod to rotate, the threaded rod is in threaded connection with the reaction box while rotating, and the threaded rod moves towards the inside of the reaction box, so that the scraper blade is driven to move downwards while rotating inside the reaction box, the inside of the reaction box is cleaned from top to bottom, and the impurities adsorbed on the inner wall of the reaction box are scraped; when the scraper blade is scraping, external water pipe supplies water and flows to inhalant canal in through the connecting tube, through spraying the passageway, through spraying the hole blowout, with reaction box inner wall sanitization, impurity after the washing is discharged through the drain pipe with water together, and the convenience is to the inside clearance of intaking of reaction box, has improved its life.
Drawings
Fig. 1 is the schematic structural diagram of a device for recovering nitrogen and phosphorus in wastewater by using a struvite crystallization method.
Fig. 2 is an enlarged view of a point a in fig. 1.
Fig. 3 is the utility model provides an utilize the structural schematic diagram of connecting pipe in device of nitrogen phosphorus in struvite crystallization recovery waste water.
Reference numerals: 1. a reaction box; 2. a sewage pipe; 3. a medicine inlet pipe; 4. a drain pipe; 401. a valve; 5. a slide bar; 6. a lifting rod; 7. a drive mechanism; 701. a first motor; 702. a driving gear; 703. a driven gear; 8. a threaded rod; 801. a water inlet channel; 802. a rotating part; 803. a limiting part; 9. a squeegee; 901. a spray channel; 902. a receiving groove; 10. a stirring mechanism; 1001. a second motor; 1002. stirring blades; 11. a connecting pipe; 111. a first jacket; 112. a second jacket; 1101. a water inlet pipe; 1102. a connecting table; 12. and connecting the bolts.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-3, the device for recovering nitrogen and phosphorus in wastewater by using struvite crystallization provided by the utility model comprises a reaction box 1, a sewage pipe 2, a drug inlet pipe 3, a drain pipe 4, a slide bar 5, a lifting rod 6, a threaded rod 8, a scraper 9 and a connecting pipe 11;
the sewage pipe 2, the medicine inlet pipe 3 and the water outlet pipe 4 are all arranged on the reaction box 1, and the sewage pipe 2, the medicine inlet pipe 3 and the water outlet pipe 4 are all communicated with the interior of the reaction box 1; two slide bars 5 are arranged, and the two slide bars 5 are symmetrically arranged at the upper end of the reaction box 1; two ends of the lifting rod 6 are respectively arranged on the two sliding rods 5 and are in sliding connection with the two sliding rods 5; one end of the threaded rod 8 penetrates through the reaction box 1 and is in threaded connection with the reaction box 1; the scraping plate 9 is arranged inside the reaction box 1 in a sliding mode, and the scraping plate 9 is arranged on the threaded rod 8; the lifting rod 6 is provided with a driving mechanism for driving the threaded rod 8 to rotate; a water inlet channel 801 is arranged inside the threaded rod 8; a spraying channel 901 and spraying holes are formed in the scraper 9; two spraying channels 901 and two spraying holes are arranged and are respectively positioned at two ends of the scraper 9; the water inlet channel 801 is communicated with the spraying channel 901; the connection pipe 11 is disposed at the upper end of the water inlet channel 801, and the water inlet channel 801 is communicated with an external water pipe through the connection pipe 11.
In an alternative embodiment, the threaded rod 8 is provided with a rotating part 802 and a limiting part 803; two ends of the rotating part 802 are respectively connected with the threaded rod 8 and the limiting part 803; the rotating part 802 is rotatably arranged on the lifting rod 6; the connecting pipe 11 is sleeved on the limiting part 803.
The rotating portion 802 is used for being rotatably connected to the lifting rod 6; the limiting part is used for being rotatably connected with the connecting pipe 11.
In an alternative embodiment, the connection tube 11 comprises a first jacket 111, a second jacket 112, a water inlet tube 1101 and a connection block 1102; the lower end of the first jacket 111 and the lower end of the second jacket 112 are rotatably arranged on the outer periphery of the limiting part 803, and one end of the first jacket 111 is rotatably connected with one end of the second jacket 112; two connecting tables 1102 are arranged and are respectively arranged at the other end of the first jacket 111 and the other end of the second jacket 112; the two connecting tables 1102 are provided with connecting bolts 12; an inlet pipe 1101 is provided at the upper ends of the first and second jackets 111 and 112, and one end of the inlet pipe 1101 is positioned inside the inlet passage 801 and rotatably connected thereto.
It should be noted that the first jacket 111 and the second jacket 112 are sleeved on the limiting portion 803 through the connecting bolt 12, and can be rotatably connected with the limiting portion 803; inlet tube 1101 stretches into inhalant canal 801 inside, makes in external water source can flow into inhalant canal 801 through inlet tube 1101, and can make threaded rod 8 when rotating, inlet tube 1101 can continue to keep still.
In an alternative embodiment, the driving mechanism 7 includes a first motor 701, a driving gear 702, and a driven gear 703; the first motor 701 is arranged on the lifting rod 6, the output end of the first motor 701 is in driving connection with the driving gear 702, and the driving gear 702 is in meshed connection with the driven gear 703; the driven gear 703 is provided on the threaded rod 8.
It should be noted that the first motor 701 drives the driving gear 702 to rotate, the driving gear 702 drives the driven gear 703 to rotate, and the driven gear 703 drives the threaded rod 8 to rotate, so that the threaded rod 8 can rotate.
In an alternative embodiment, the bottom of the reaction chamber 1 is provided with a stirring mechanism 10; the stirring mechanism 10 comprises a second motor 1001 and a stirring blade 1002; the second motor 1001 is arranged at the bottom of the reaction box 1, and the output end of the second motor 1001 is in driving connection with the stirring blade 1002; stirring blade 1002 is located in reaction box 1.
The second motor 1001 drives the stirring blade 1002 to rotate, and the stirring blade 1002 stirs and mixes the sewage and the chemical liquid in the reaction tank 1, so that the sewage and the chemical liquid can be sufficiently reacted.
In an alternative embodiment, the scraper 9 is provided with a receiving groove 902 for receiving the stirring blade 1002.
The storage groove 902 is used to store the stirring blade 1002 when the scraper 9 moves to the lowermost end, and prevent the stirring blade 1002 from being damaged by contact with the stirring blade 1002 during rotation.
In an alternative embodiment, the drain 4 is provided with a valve 401; the valve 401 is capable of controlling the flow rate of the liquid in the drain 4.
In the utility model, sewage enters the reaction box 1 from the sewage pipe 2, the decomposition medicine enters the reaction box 1 from the medicine inlet pipe 3 and is mixed in the reaction box 1, so that nitrogen and phosphorus in the sewage are separated out into crystal particles and are discharged from the water discharge pipe 4 together with the sewage; when partial impurities are adsorbed on the inner wall of the reaction box 1, the driving mechanism 7 is started, the driving mechanism 7 drives the threaded rod 8 to rotate, the threaded rod 8 is in threaded connection with the reaction box 1 while rotating, so that the threaded rod 8 moves towards the inside of the reaction box 1, and the scraper plate 9 is driven to move downwards while rotating inside the reaction box 1, so that the inside of the reaction box 1 is cleaned from top to bottom, and the impurities adsorbed on the inner wall of the reaction box 1 are scraped; when scraper blade 9 is scraping, external water pipe supplies water and flows to inhalant canal 801 through connecting pipe 11 in, through spraying passageway 901, through spraying the hole blowout, with 1 inner wall sanitization of reaction box, and impurity after the washing is discharged through drain pipe 4 with water together, and the convenience is to the inside clearance of intaking of reaction box 1, has improved its life.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. A device for recovering nitrogen and phosphorus in wastewater by using a struvite crystallization method is characterized by comprising a reaction box (1), a sewage pipe (2), a medicine inlet pipe (3), a water discharge pipe (4), a slide bar (5), a lifting rod (6), a threaded rod (8), a scraper (9) and a connecting pipe (11);
the sewage pipe (2), the medicine inlet pipe (3) and the water outlet pipe (4) are all arranged on the reaction box (1), and the sewage pipe (2), the medicine inlet pipe (3) and the water outlet pipe (4) are all communicated with the interior of the reaction box (1); two sliding rods (5) are arranged, and the two sliding rods (5) are symmetrically arranged at the upper end of the reaction box (1); two ends of the lifting rod (6) are respectively arranged on the two sliding rods (5) and are in sliding connection with the two sliding rods (5); one end of the threaded rod (8) penetrates through the reaction box (1) and is in threaded connection with the reaction box (1); the scraping plate (9) is arranged inside the reaction box (1) in a sliding manner, and the scraping plate (9) is arranged on the threaded rod (8); a driving mechanism for driving the threaded rod (8) to rotate is arranged on the lifting rod (6); a water inlet channel (801) is arranged inside the threaded rod (8); a spraying channel (901) and a spraying hole are arranged in the scraper (9); two spraying channels (901) and two spraying holes are arranged and are respectively positioned at two ends of the scraper (9); the water inlet channel (801) is communicated with the spraying channel (901); the connecting pipe (11) is arranged at the upper end of the water inlet channel (801), and the water inlet channel (801) is communicated with an external water pipe through the connecting pipe (11).
2. The device for recovering nitrogen and phosphorus in wastewater by using the struvite crystallization method according to claim 1, wherein a rotating part (802) and a limiting part (803) are arranged on the threaded rod (8); two ends of the rotating part (802) are respectively connected with the threaded rod (8) and the limiting part (803); the rotating part (802) is rotatably arranged on the lifting rod (6); the connecting pipe (11) is sleeved on the limiting part (803).
3. The device for recovering nitrogen and phosphorus in wastewater by using the struvite crystallization method of claim 2, wherein the connecting pipe (11) comprises a first jacket (111), a second jacket (112), a water inlet pipe (1101) and a connecting platform (1102); the lower end of the first jacket (111) and the lower end of the second jacket (112) are rotatably arranged on the outer periphery of the limiting part (803), and one end of the first jacket (111) is rotatably connected with one end of the second jacket (112); two connecting tables (1102) are arranged and are respectively arranged at the other end of the first jacket (111) and the other end of the second jacket (112); connecting bolts (12) are arranged on the two connecting tables (1102); the water inlet pipe (1101) is arranged at the upper ends of the first jacket (111) and the second jacket (112), and one end of the water inlet pipe (1101) is positioned inside the water inlet channel (801) and is rotatably connected with the water inlet channel.
4. The device for recovering nitrogen and phosphorus in wastewater by using the struvite crystallization method according to claim 1, characterized in that the driving mechanism (7) comprises a first motor (701), a driving gear (702) and a driven gear (703); the first motor (701) is arranged on the lifting rod (6), the output end of the first motor (701) is in driving connection with the driving gear (702), and the driving gear (702) is in meshing connection with the driven gear (703); the driven gear (703) is provided on the threaded rod (8).
5. The device for recovering nitrogen and phosphorus in wastewater by using the struvite crystallization method according to claim 1, characterized in that a stirring mechanism (10) is arranged at the bottom of the reaction box (1); the stirring mechanism (10) comprises a second motor (1001) and a stirring blade (1002); the second motor (1001) is arranged at the bottom of the reaction box (1), and the output end of the second motor (1001) is in driving connection with the stirring blade (1002); the stirring blade (1002) is positioned in the reaction box (1).
6. The device for recovering nitrogen and phosphorus in wastewater by using the struvite crystallization method according to claim 5, wherein the scraper (9) is provided with a receiving groove (902) for receiving the stirring blade (1002).
7. The device for recovering nitrogen and phosphorus in wastewater by using the struvite crystallization method according to claim 1, characterized in that a valve (401) is arranged on the drain pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022569902.0U CN213679897U (en) | 2020-11-09 | 2020-11-09 | Utilize device of nitrogen phosphorus in struvite crystallization method recovery waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022569902.0U CN213679897U (en) | 2020-11-09 | 2020-11-09 | Utilize device of nitrogen phosphorus in struvite crystallization method recovery waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213679897U true CN213679897U (en) | 2021-07-13 |
Family
ID=76729897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022569902.0U Expired - Fee Related CN213679897U (en) | 2020-11-09 | 2020-11-09 | Utilize device of nitrogen phosphorus in struvite crystallization method recovery waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213679897U (en) |
-
2020
- 2020-11-09 CN CN202022569902.0U patent/CN213679897U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107010765A (en) | A kind of integrated high-efficiency sewage disposal device | |
| CN106477782A (en) | A kind of sewage disposal device | |
| CN111777283A (en) | Sewage treatment device capable of carrying out sludge treatment | |
| CN213679897U (en) | Utilize device of nitrogen phosphorus in struvite crystallization method recovery waste water | |
| CN209411970U (en) | A kind of sewage disposal reaction tank | |
| CN111606457A (en) | Advanced oxidation treatment device and process for landfill leachate concentrated solution | |
| CN217887139U (en) | Sewage treatment equipment for municipal works | |
| CN215327638U (en) | High-strength glass fiber reinforced plastic septic tank device for water supply and drainage engineering | |
| CN212269720U (en) | Advanced oxidation treatment device for landfill leachate concentrated solution | |
| CN214654073U (en) | Avoid secondary pollution's white spirit to make effluent treatment plant | |
| CN216038981U (en) | Industrial water purification tower convenient to wash | |
| CN214115191U (en) | High-efficient desiliconization device of viscous crude waste water | |
| CN214087865U (en) | Coal fired power plant wastewater discharging equipment | |
| CN108164099A (en) | A kind of river channel ecology administers water quality and promotes cleaning system | |
| CN211595295U (en) | Industrial wastewater treatment equipment | |
| CN213388072U (en) | Sewage treatment device with good sewage treatment and purification performance | |
| CN207072841U (en) | Ozonation aerated biofilter | |
| CN221296370U (en) | Sedimentation engineering cleaning device for sewage purification treatment | |
| CN210505878U (en) | Coal chemical wastewater treatment device | |
| CN217578624U (en) | Landfill leachate nitration device | |
| CN216404069U (en) | Fluorine-containing wastewater advanced treatment system | |
| CN220467605U (en) | Discharge system of landfill leachate | |
| CN219409432U (en) | Intelligent efficient anaerobic tank for integrated device | |
| CN215480028U (en) | Integration MBR sewage equipment | |
| CN215711977U (en) | Be used for high-efficient running device of sewage treatment plant sodium hypochlorite contact disinfection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |