CN209797651U - Urban sewage treatment device - Google Patents
Urban sewage treatment device Download PDFInfo
- Publication number
- CN209797651U CN209797651U CN201920507145.9U CN201920507145U CN209797651U CN 209797651 U CN209797651 U CN 209797651U CN 201920507145 U CN201920507145 U CN 201920507145U CN 209797651 U CN209797651 U CN 209797651U
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- China
- Prior art keywords
- tank
- sand layer
- quartz sand
- particles
- sewage treatment
- 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
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- 239000010865 sewage Substances 0.000 title claims abstract description 77
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 81
- 239000006004 Quartz sand Substances 0.000 claims abstract description 64
- 238000001914 filtration Methods 0.000 claims abstract description 32
- 230000001877 deodorizing effect Effects 0.000 claims abstract description 7
- 230000001954 sterilising effect Effects 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 239000002245 particle Substances 0.000 claims description 36
- 239000010802 sludge Substances 0.000 claims description 17
- 238000004659 sterilization and disinfection Methods 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 238000004332 deodorization Methods 0.000 claims description 12
- 239000000460 chlorine Substances 0.000 claims description 11
- 229910052801 chlorine Inorganic materials 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 11
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 10
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 8
- 239000011572 manganese Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims 3
- 238000000746 purification Methods 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000011045 prefiltration Methods 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 238000009298 carbon filtering Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Water Treatment By Sorption (AREA)
Abstract
The utility model belongs to the technical field of sewage treatment, a municipal sewage treatment plant is disclosed. The device comprises a shell, wherein a primary filtering tank, a secondary filtering tank, a mud settling tank, a deodorizing tank, a tertiary filtering tank and a sterilizing tank are sequentially connected with the inside of the shell from left to right; the primary filtration tank bottom external connection has first inlet tube, and the secondary filtration tank bottom external connection has the second inlet tube, and first quartz sand layer, second quartz sand layer and third quartz sand layer have been laid in proper order to the equal top-down of primary filtration tank inside and secondary filtration tank inside. The utility model discloses can carry out high purification treatment to the sewage in the urban life, make the sewage after the purification can reach the emission index, play important role to environmental protection.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, specific theory relates to a municipal sewage treatment plant.
Background
The sewage treatment refers to a process of purifying sewage to meet the water quality requirement of draining a certain water body or reusing the sewage, the sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and the sewage treatment also increasingly enters the daily life of common people, upstream suppliers in the sewage treatment industry are mainly manufacturers of sewage treatment equipment and sewage treatment agent suppliers, a lot of sewage is produced every day in cities, the environmental sanitation is seriously affected, and when the urban sewage needs to be treated, a device for purifying the urban sewage is often needed to purify the urban sewage.
The existing sewage treatment device can not meet the requirements on environmental protection for sewage treatment, the efficiency is low, the sewage purification effect is still unsatisfactory, the purification mode is single, and the sewage contains many impurities, so that the pipe orifice can be blocked and difficult to clean after the sewage is used for a period of time, and the use of the equipment is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is overcome prior art's defect, provide a municipal sewage treatment plant, can accomplish to carry out efficient filtration treatment to sewage, make the sewage after purifying reach the emission requirement to reduce the pollution to the environment, be convenient for simultaneously clear up the impurity in the pipeline, prevent that impurity from piling up and stopping up, influence normal use.
The utility model discloses the technical scheme who adopts does: a municipal sewage treatment plant comprises a shell, wherein a primary filter tank, a secondary filter tank, a mud settling tank, a deodorization tank, a tertiary filter tank and a disinfection tank are sequentially connected in the shell from left to right; the lower end of the primary filtering tank is connected with a first water inlet pipe, a second water inlet pipe is connected between the upper end of the primary filtering tank and the lower end of the secondary filtering tank, and quartz sand layers are paved inside the primary filtering tank and inside the secondary filtering tank; a plurality of partition plates which are arranged at intervals are arranged in the sludge settling tank, a sludge settling gap is formed between each partition plate and the inner wall of the sludge settling tank, and the sludge settling gaps are arranged in the sludge settling tank in a staggered manner; the top end of the deodorization tank is provided with an air inlet pipe for introducing oxygen into the deodorization tank and an air outlet pipe for discharging air, and the air inlet pipe is connected with an air inlet machine; a primary filter screen, a secondary filter screen and an active carbon filter layer are sequentially arranged in the tertiary filter tank along the water flow direction; the chlorine mouth of throwing that is used for puting in chlorine is installed on the top of disinfection jar, and disinfection jar below is equipped with the retaining jar that is located inside the casing and communicates with the disinfection jar, and the bottom of retaining jar is provided with the drain pipe, and the drain pipe runs through the outside that extends to the casing, and the drain valve is installed to the drain pipe outer end.
In the technical scheme, a water return pipe is connected between the secondary filter tank and the primary filter tank, and a water return pump is installed on the water return pipe.
In the technical scheme, the lower end in the shell is connected with a sewage collection tank, a sewage discharge pipe is installed on the sewage collection tank, a sewage discharge valve is installed on the sewage discharge pipe, and the secondary filter tank, the sludge settling tank, the deodorization tank and the tertiary filter tank are communicated with the sewage collection tank.
In the above technical scheme, the quartz sand layer comprises a first quartz sand layer, a second quartz sand layer and a third quartz sand layer which are sequentially paved from top to bottom, and the thickness of the first quartz sand layer, the thickness of the second quartz sand layer and the thickness of the third quartz sand layer are sequentially increased.
In the technical scheme, the diameters of the particles in the first quartz sand layer, the diameters of the particles in the second quartz sand layer and the diameters of the particles in the third quartz sand layer are sequentially increased.
In the technical scheme, the diameter of the particles in the first quartz sand layer and the diameter of the particles in the second manganese sand layer are both 1-2 mm, the diameter of the particles in the second quartz sand layer and the diameter of the particles in the first manganese sand layer are both 2-4 mm, and the diameter of the particles in the third quartz sand layer and the diameter of the particles in the fourth quartz sand layer are both 4-8 mm.
In the above technical scheme, the partition plates are vertically arranged in the mud settling tank.
The utility model has the advantages that: the utility model discloses can carry out high purification treatment to the sewage in the urban life, make the sewage after the purification can reach the emission index, play the important role to environmental protection, can clear up the impurity in the pipeline simultaneously, prevent effectively that impurity from piling up and causing the pipe blockage to carry out the influence device and use, will deposit the dirty processing of concentrating together that gets off simultaneously, the cleaning work in the later stage of being convenient for avoids causing secondary pollution.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-a shell; 2-a primary filtering tank; 3-a secondary filtering tank; 4-settling mud tank; 5-deodorization tank; 6-third filtering tank, 7-sterilizing tank, 8-water return pipe, 9-water return pump, 10-dirt collecting tank, 11-flow control valve, 12-air inlet pipe, 13-second water inlet pipe, 14-first water inlet pipe, 15-sewage discharge pipe, 16-air inlet machine, 17-primary filter screen, 18-secondary filter screen, 19-active carbon filter layer, 20-chlorine inlet, 21-water storage tank, 22-water discharge pipe and 23-water discharge valve.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Wherein like reference numerals refer to like parts throughout.
In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example 1
As shown in fig. 1, the utility model provides an urban sewage treatment device, which comprises a shell 1, wherein a primary filter tank 2, a secondary filter tank 3, a sludge settling tank 4, a deodorization tank 5, a tertiary filter tank 6 and a disinfection tank 7 are sequentially connected in the shell 1 from left to right; the lower end of the primary filter tank 2 is connected with a first water inlet pipe 14, a second water inlet pipe 13 is connected between the upper end of the primary filter tank 2 and the lower end of the secondary filter tank 3, and quartz sand layers are paved inside the primary filter tank 2 and inside the secondary filter tank 3.
It is equipped with a plurality of baffles (as shown in figure 1) that are the slope and arrange to sink mud jar 4, is between every baffle and the inner wall that sinks mud jar 4 and sinks mud clearance, and is a plurality of it is staggered arrangement to sink mud clearance in sinking mud jar 4.
The top of deodorization jar 5 is provided with intake pipe 12 that is used for letting in oxygen to deodorization jar 5 inside and is used for the outlet duct of exhaust air, is connected with air inlet fan 16 on the intake pipe 12. The air inlet pipe 12 mainly functions to introduce air into the deodorizing tank 5, thereby reducing the content of anaerobic bacteria in the sludge and reducing the malodor of the sludge. During actual work, preferably, the air outlet pipe can also be used as a medicine feeding port, and a worker can feed deodorizing medicines (such as quicklime) into the deodorizing tank 5 through the medicine feeding port.
And a primary filter screen 17, a secondary filter screen 18 and an active carbon filter layer 19 are sequentially arranged in the tertiary filter tank 6 along the water flow direction. As shown in fig. 1, the filter screen 17, the secondary filter screen 18 and the activated carbon filter layer 19 are vertically arranged in the tertiary filter tank 6. At this time, the water flow in the third filtering tank 6 passes through the primary filtering net 17, the secondary filtering net 18 and the active carbon filtering layer 19 in sequence. The diameter of the primary filter screen 17 is larger than that of the secondary filter screen 18, and the primary filter screen 17, the secondary filter screen 18 and the active carbon filter layer 19 are all the prior art.
The top of disinfection jar 7 is installed and is thrown chlorine mouth 20, and throws chlorine mouth 20 and run through the top surface that extends to casing 1, there is water storage tank 21 bottom of disinfection jar 7 through the pipe connection, and is provided with the solenoid valve on the pipeline, water storage tank 21 is located casing 1's inside bottom and is located one side of dirty case 10 of collection, water storage tank 21's bottom is provided with drain pipe 22, and drain pipe 22 runs through the outside that extends to casing 1, drain valve 23 is installed to drain pipe 22 outer end.
Preferably, a water return pipe 8 is connected between the secondary filter tank 3 and the primary filter tank 2, and a water return pump 9 is installed on the water return pipe 8. Under the combined action of wet return 8 and wet return 9, can help the staff will once filter the sewage that is not conform to the requirement of getting rid of on jar 2, carry out secondary filter, wet return 8 and wet return 9 are favorable to having improved the utility model discloses a practicality. The return pipe 8 is provided with a flow control valve 11, and during actual operation, the flow control valve 11 can be installed on each pipeline.
Preferably, the inside lower extreme of casing 1 is connected with an album dirty case 10, installs blow off pipe 15 on the collection dirty case, installs the blowoff valve on the blow off pipe 15, secondary filter jar 3, heavy mud jar 4, deodorization jar 5 and tertiary filter jar 6 all communicate with an album dirty case 10. Preferably, install the dredge pump on the blow off pipe 15, install the drain on the dirty case 10 of collection, the bottom of the dirty case 10 of collection is the slope and arranges (as shown in 1), and drain and blowoff valve correspond each other, can improve the efficiency of blowdown, and dirty case 10 of collection can help the staff with the mud discharge of jar body bottom, and then increase the utility model discloses a life and practicality.
Preferably, the thickness of the first quartz sand layer, the thickness of the second quartz sand layer and the thickness of the third quartz sand layer are increased in sequence. Preferably, the diameters of the particles in the first quartz sand layer, the diameters of the particles in the second quartz sand layer and the diameters of the particles in the third quartz sand layer are increased in sequence. Preferably, the diameter of the particles in the first quartz sand layer and the diameter of the particles in the second manganese sand layer are both 1-2 mm, the diameter of the particles in the second quartz sand layer and the diameter of the particles in the first manganese sand layer are both 2-4 mm, and the diameter of the particles in the third quartz sand layer and the diameter of the particles in the fourth quartz sand layer are both 4-8 mm.
First quartz sand layer, second quartz sand layer and third quartz sand layer all are called quartz sand layer (prior art), and quartz sand layer cost is cheap, and preliminary filtration effect is better, can satisfy the utility model discloses a demand.
Preferably, the inside water storage tank 21 that is located disinfection jar 7 below and communicates with disinfection jar 7 that still is equipped with of casing 1, the bottom of water storage tank 21 is provided with drain pipe 22, and drain pipe 22 runs through the outside that extends to casing 1, and drain valve 23 is installed to the drain pipe 22 outer end.
The utility model discloses a throw chlorine mouth 20 and add chlorine to the inside of disinfection jar 7 to play sterile effect, thoroughly carry out purification treatment to sewage, sewage after the disinfection passes through the pipeline of bottom and discharges to the inside of retaining jar 21, opens drain valve 23 on the drain pipe 22 after the inside water of retaining jar 21 reachs suitable water level, and sewage after will purifying discharges to suitable position, thereby accomplishes the purification work to municipal sewage.
In operation, move casing 1 to municipal sewage storage department, will according to the structure shown in fig. 1 the utility model discloses each parts assembly is good, the utility model discloses previously, need use net grid etc. to carry out prefiltration to municipal sewage to prevent that the great material of diameter is right in the municipal sewage the pipeline of utility model causes the jam, the utility model discloses a once filter jar and carry out prefiltration, rethread secondary filter jar 3 carries out secondary filter, once filters jar 2 and filters the great dirty granule that contains miscellaneous in the sewage. If the sewage is not qualified during secondary filtration, the sewage can be filtered again under the combined action of the water return pipe 8 and the water return pump 9. The disinfection jar 7 is through throwing chlorine mouth 20 to the inside chlorine that injects into of disinfection jar 7 to disinfect work sewage, thereby thoroughly purify sewage, make the sewage of emission reach the emission index, the sewage after the final disinfection gets into the inside to retaining jar 21, opens drain valve 23 after the water level reaches suitable water level and discharges the sewage after purifying to suitable place through drain pipe 22.
Example 2
In this embodiment, a primary filter screen 17, a secondary filter screen 18, and an activated carbon filter layer 19 (not shown in the drawings, and the specific structural form can refer to fig. 1) are transversely arranged in the tertiary filter tank 6, and at this time, the water flow in the tertiary filter tank 6 still passes through the primary filter screen 17, the secondary filter screen 18, and the activated carbon filter layer 19 in sequence. The diameter of the primary filter screen 17 is larger than that of the secondary filter screen 18, and the primary filter screen 17, the secondary filter screen 18 and the active carbon filter layer 19 are all the prior art.
In the time of actual work, if the quality of water of the sewage after the deodorization jar is handled is better, the cubic is filtered 6 inside and can be prolonged the rivers direction and set gradually primary filter 17, secondary filter 18 and active carbon filter layer 19, sewage enters into the cubic and filters the inside back of jar 6, pass through primary filter 17 earlier, secondary filter 18 removes organic impurity and heavy metal in the sewage, the sewage that prevents follow-up emission is not up to standard, finally by active carbon filter layer 19 in to sewage granule impurity, suspended solid etc. filter, further promote the cleanliness factor of sewage.
The structures of the primary filter tank 2, the secondary filter tank 3, the sludge settling tank 4, the deodorizing tank 5 and the sterilizing tank 7 in the embodiment are also the same as those in embodiment 1, and the connection mode of the components in the embodiment is also the same as that in embodiment 1.
The arrangement of the first quartz sand layer, the second quartz sand layer and the third quartz sand layer in the primary filter tank 2 and the secondary filter tank 3 is the same as that in embodiment 1, that is, the thickness of the first quartz sand layer, the thickness of the second quartz sand layer and the thickness of the third quartz sand layer are sequentially increased. Preferably, the diameters of the particles in the first quartz sand layer, the diameters of the particles in the second quartz sand layer and the diameters of the particles in the third quartz sand layer are increased in sequence. Preferably, the diameter of the particles in the first quartz sand layer and the diameter of the particles in the second manganese sand layer are both 1-2 mm, the diameter of the particles in the second quartz sand layer and the diameter of the particles in the first manganese sand layer are both 2-4 mm, and the diameter of the particles in the third quartz sand layer and the diameter of the particles in the fourth quartz sand layer are both 4-8 mm.
First quartz sand layer, second quartz sand layer and third quartz sand layer all are called quartz sand layer (prior art), and quartz sand layer cost is cheap, and preliminary filtration effect is better, can satisfy the utility model discloses a demand.
To sum up, the utility model relates to a municipal sewage treatment plant, the device can carry out high purification treatment to the sewage in the urban life, make the sewage after purifying can reach the emission index, have played the important role to environmental protection, can clear up the impurity in the pipeline simultaneously, prevent effectively that impurity from piling up and causing the pipe blockage to carry out the influence device and use, will deposit the dirty processing of concentrating together that gets off simultaneously, and the secondary pollution is avoided causing in the cleaning work in the later stage of being convenient for.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (7)
1. A municipal sewage treatment device comprises a shell, and is characterized in that a primary filtering tank, a secondary filtering tank, a mud settling tank, a deodorizing tank, a tertiary filtering tank and a sterilizing tank are sequentially connected with the inside of the shell from left to right; the lower end of the primary filtering tank is connected with a first water inlet pipe, a second water inlet pipe is connected between the upper end of the primary filtering tank and the lower end of the secondary filtering tank, and quartz sand layers are paved inside the primary filtering tank and inside the secondary filtering tank; a plurality of partition plates which are arranged at intervals are arranged in the sludge settling tank, a sludge settling gap is formed between each partition plate and the inner wall of the sludge settling tank, and the sludge settling gaps are arranged in the sludge settling tank in a staggered manner; the top end of the deodorization tank is provided with an air inlet pipe for introducing oxygen into the deodorization tank and an air outlet pipe for discharging air, and the air inlet pipe is connected with an air inlet machine; a primary filter screen, a secondary filter screen and an active carbon filter layer are sequentially arranged in the tertiary filter tank along the water flow direction; the chlorine mouth of throwing that is used for puting in chlorine is installed on the top of disinfection jar, and disinfection jar below is equipped with the retaining jar that is located inside the casing and communicates with the disinfection jar, and the bottom of retaining jar is provided with the drain pipe, and the drain pipe runs through the outside that extends to the casing, and the drain valve is installed to the drain pipe outer end.
2. The municipal sewage treatment plant according to claim 1, wherein a water return pipe is connected between the secondary filtration tank and the primary filtration tank, and a water return pump is installed on the water return pipe.
3. The municipal sewage treatment device according to claim 2, wherein the lower end of the inside of the housing is connected with a sewage collection tank, the sewage collection tank is provided with a sewage discharge pipe, the sewage discharge pipe is provided with a sewage discharge valve, and the secondary filter tank, the sludge settling tank, the deodorizing tank and the tertiary filter tank are all communicated with the sewage collection tank.
4. The municipal sewage treatment device according to claim 3, wherein the quartz sand layer comprises a first quartz sand layer, a second quartz sand layer and a third quartz sand layer laid in sequence from top to bottom, and the thickness of the first quartz sand layer, the thickness of the second quartz sand layer and the thickness of the third quartz sand layer increase in sequence.
5. The municipal sewage treatment device according to claim 4, wherein the diameters of the particles in the first silica sand layer, the diameters of the particles in the second silica sand layer and the diameters of the particles in the third silica sand layer are increased in this order.
6. The municipal sewage treatment device according to claim 5, wherein the diameter of the particles in the first quartz sand layer and the diameter of the particles in the second manganese sand layer are both 1-2 mm, the diameter of the particles in the second quartz sand layer and the diameter of the particles in the first manganese sand layer are both 2-4 mm, and the diameter of the particles in the third quartz sand layer and the diameter of the particles in the fourth quartz sand layer are both 4-8 mm.
7. The municipal sewage treatment apparatus according to claim 6, wherein the partition is vertically disposed in the sludge settling tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920507145.9U CN209797651U (en) | 2019-04-15 | 2019-04-15 | Urban sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920507145.9U CN209797651U (en) | 2019-04-15 | 2019-04-15 | Urban sewage treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209797651U true CN209797651U (en) | 2019-12-17 |
Family
ID=68829473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920507145.9U Expired - Fee Related CN209797651U (en) | 2019-04-15 | 2019-04-15 | Urban sewage treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209797651U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113045005A (en) * | 2021-01-18 | 2021-06-29 | 吉林建筑大学 | Adjustable multifunctional sewage treatment method |
-
2019
- 2019-04-15 CN CN201920507145.9U patent/CN209797651U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113045005A (en) * | 2021-01-18 | 2021-06-29 | 吉林建筑大学 | Adjustable multifunctional sewage treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191217 |