CN212640065U - Vertical rural domestic sewage treatment equipment - Google Patents
Vertical rural domestic sewage treatment equipment Download PDFInfo
- Publication number
- CN212640065U CN212640065U CN202020164412.XU CN202020164412U CN212640065U CN 212640065 U CN212640065 U CN 212640065U CN 202020164412 U CN202020164412 U CN 202020164412U CN 212640065 U CN212640065 U CN 212640065U
- Authority
- CN
- China
- Prior art keywords
- packing
- unit
- domestic sewage
- water
- water outlet
- 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
- 239000010865 sewage Substances 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 82
- 238000012856 packing Methods 0.000 claims abstract description 70
- 239000000945 filler Substances 0.000 claims abstract description 29
- 230000008595 infiltration Effects 0.000 claims abstract description 28
- 238000001764 infiltration Methods 0.000 claims abstract description 28
- 239000006004 Quartz sand Substances 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000005187 foaming Methods 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 12
- 238000001914 filtration Methods 0.000 abstract description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 6
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 6
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 6
- 239000011574 phosphorus Substances 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 12
- 239000002245 particle Substances 0.000 description 8
- 238000005325 percolation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000035755 proliferation Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model relates to a vertical rural domestic sewage treatment equipment, including water intake system, modularization filtration system and water outlet system, water intake system, modularization filtration system and water outlet system top-down set up. The modular infiltration system comprises a protection unit and a plurality of packing units arranged below the protection unit, wherein the packing units are sequentially connected in series from top to bottom, and each packing unit is detachably arranged in the modular infiltration system. The utility model is provided with a plurality of detachable filler units, each filler unit is filled with different fillers, the fillers mainly comprise coarse and fine quartz sand and ceramsite, and can better remove organic matters, ammonia nitrogen, total phosphorus, total nitrogen and the like in the dispersed domestic sewage through different infiltration combinations; the filler is replaced and the later maintenance is more convenient.
Description
Technical Field
The utility model relates to a water treatment technical field, in particular to vertical rural domestic sewage treatment equipment.
Background
According to statistics, in rural areas in China, most of dispersed domestic sewage is directly discharged into rivers, ditches, reservoirs and lakes without any treatment except that a small part of domestic sewage is simply treated by a septic tank and then permeates into the ground. In some areas, because of the limited conditions, domestic sewage is often used for irrigating soil, which not only causes serious damage to rural ecological environment, but also further threatens the drinking water safety in cities and rural areas and the health of rural residents.
The quality of rural decentralized domestic sewage is influenced and restricted by life styles of people such as working and resting time, seasons, festivals and holidays, and has the characteristic of large fluctuation: such as strong sewage distribution randomness, small sewage flow, large change coefficient, low pollutant concentration, good water quality biodegradability and the like. At present, the technology for treating rural decentralized domestic sewage mainly comprises the following steps: anaerobic biofilter, biological contact oxidation, SBR, aeration biofilter, artificial wetland, underground fast infiltration and the like.
The patent number is ZL200820064226.8, is named as the utility model patent of "artifical rapid infiltration membrane sewage treatment device", discloses a domestic sewage treatment device, and it comprises water installations, rapid infiltration device and water outlet means, and the infiltration medium that the inside infiltration layer of rapid infiltration device adorns about 1800mm height. The equipment has the advantages of low investment, low energy consumption, low operating cost, convenient maintenance and management, flexible use, easy arrangement and small occupied area compared with the common traditional land sewage treatment system equipment, and is particularly suitable for the treatment of rural domestic sewage. The filter material treatment equipment has poor effect on treating organic matters, ammonia nitrogen, total phosphorus and total nitrogen, gaps in the filter bed are gradually filled with impurities after the filter material is used for a period of time, the filter bed filled with the impurities increases water flow resistance, hydraulic load of the water treatment equipment is increased, treatment effect of the whole system is seriously affected, and the filter material needs to be replaced manually at regular intervals. Because the filter material is tightly filled in the equipment from bottom to top, the filter material is very inconvenient to replace in the later period, and particularly the lower filter material is obviously replaced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a vertical rural domestic sewage treatment equipment to solve the problem that above-mentioned prior art exists, this equipment not only can improve the treatment effect to indexes such as organic matter, ammonia nitrogen, total phosphorus, total nitrogen in the dispersion type domestic sewage, it is convenient very much to change the filter material moreover, easy follow-up maintenance.
The technical scheme of the utility model is that:
a vertical rural domestic sewage treatment equipment comprises: the water inlet system, the modular infiltration system and the water outlet system are arranged from top to bottom. The modular infiltration system comprises a protection unit and a plurality of packing units arranged below the protection unit, wherein the packing units are sequentially connected in series from top to bottom, and each packing unit is detachably arranged in the modular infiltration system.
The water inlet system is mainly used for pumping domestic sewage into the modular infiltration system. The main structure comprises a water distribution main pipe and a plurality of water distribution units connected with the water outlet end of the water distribution main pipe. Wherein each water distribution unit is also provided with a water distribution branch pipe connected with the water distribution main pipe and a foaming device connected with the water outlet end of the water distribution branch pipe. The foaming device has the function of promoting water flow to gush upwards in a fountain mode, so that sufficient oxygen can be mixed conveniently, and convenience is provided for subsequent percolation reaction.
In addition, the water inlet system also comprises a rotor flow meter which is arranged on the water distribution main pipe.
The modular infiltration system is mainly used for removing organic matters, ammonia nitrogen, total phosphorus and total nitrogen in domestic sewage to the maximum extent. The modular infiltration system comprises a protection unit positioned at the top and a plurality of packing units positioned below the protection unit. Each filling unit is composed of a plurality of filling subunits, the bottom of any one of the filling subunits is provided with a stainless steel net, and the filling layer is contained inside each filling subunit.
Furthermore, the modular infiltration system is provided with a cabinet type vertical frame for arranging the protection unit and the filler unit, the cabinet type vertical frame is provided with a plurality of drawer grids, and the filler subunit is detachably arranged in the drawer grids. Typically, the removable means may be a snap.
Furthermore, the protection unit is a hollow box structure, and the water inlet system is sunk and embedded in the box structure. The protection unit is not filled with any filter material, and the main purpose is to prevent sewage from overflowing the outside of the tank body due to untimely infiltration.
Further, in order to ensure the percolation effect, the number of the packing elements is at least 3. When the number of the filler units is 3, specifically, the uppermost filler unit contains a first filler layer consisting of coarse quartz sand and 10% of ceramsite; the middle layer packing unit contains a second packing layer which is composed of fine quartz sand and 10% of ceramsite; the lowest layer of filler units contains a third filler layer made of crushed stones.
The coarse quartz sand has the particle size range of 2-4 mm, has small head loss, is used for intercepting impurities such as particulate matters and the like, and plays a role in rough filtration; the particle size range of the fine quartz sand is 0.5-1.2 mm, and the fine quartz sand is used for intercepting organic matter particles and colloidal particle substances and plays a fine filtration role; the surface of the ceramsite is rough, easy to form a film, and large in specific surface area, so that the ceramsite is suitable for rapid proliferation of microorganisms; the porosity among the rubbles is large, the water collection efficiency is high, and the rubble layer is connected with the water outlet pipe, so that the water outlet can be prevented from being blocked by impurities of the device.
The water outlet system is provided with a water outlet pipe, the water outlet pipe is connected with the lowest layer of packing unit, and the height of a water outlet of the water outlet pipe is not lower than the top of the lowest layer of packing unit.
The utility model has the advantages that:
(1) the utility model discloses be equipped with a plurality of detachable filler units, it has different fillers to fill in each filler unit, and these fillers mainly comprise thick, thin quartz sand and haydite and through the filtration combination of difference, can get rid of organic matter, ammonia nitrogen, total phosphorus, total nitrogen etc. in the decentralized domestic sewage betterly. In addition, after the water quality condition changes, when a certain packing unit needs to be replaced with the packing or the packing is blocked, the packing unit can be taken out, and the packing unit is placed into the box body after being replaced or cleaned, so that the packing replacement and the later maintenance are more convenient.
(2) The utility model discloses a water inlet system has increased the foaming device, becomes the water distribution process and becomes the oxygenation process, has improved the dissolved oxygen of intaking greatly, helps the flooding phase pollutant to be absorbed and degradation by the biomembrane.
Drawings
FIG. 1 is a schematic view of the overall structure of the utility model;
FIG. 2 is a schematic structural diagram of the packing unit of the present invention;
fig. 3 is a schematic structural view of the packing unit of the present invention after being extracted.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in figure 1, figure 1 shows the structure of the vertical rural domestic sewage treatment equipment of the utility model. The method mainly comprises the following steps: the water inlet system 1, the modular infiltration system 2 and the water outlet system 3 are arranged from top to bottom. The key filtering structure is a modular infiltration system 2, the modular infiltration system 2 comprises a protection unit 20 and a plurality of packing units arranged below the protection unit 20, the packing units are sequentially connected in series from top to bottom, and each packing unit is detachably arranged in the modular infiltration system 2.
The technical effect that brings from this is that, the convenience that this equipment was maintained after the adaptable quality of water condition of detachable filtration system 2 changes. If a certain packing unit needs to be replaced with packing or the packing is blocked, the packing unit can be drawn out, replaced or cleaned, and then the packing unit is placed into the box body.
Each system is described in detail below.
The water intake system 1 is mainly used for pumping domestic sewage into the modular percolation system 2. The main structure comprises a water distribution main pipe 10 and a plurality of water distribution units connected with the water outlet end of the water distribution main pipe 10. Wherein each water distribution unit is also provided with a water distribution branch pipe 11 connected with the water distribution main pipe 10 and a foaming device 12 connected with the water outlet end of the water distribution branch pipe 11. The foaming device has the function of promoting water flow to gush upwards in a fountain mode, so that sufficient oxygen can be mixed conveniently, and convenience is provided for subsequent percolation reaction.
The water intake system 1 may further comprise various pumping devices, such as a suction pump. This structure is not shown, but those skilled in the art should understand the structure of the present invention in combination with the prior art when implementing the present invention. On the basis, in order to monitor the flow, the water distribution main pipe 10 can be provided with a rotor flow meter 13.
The modular infiltration system 2 is mainly used for removing organic matters, ammonia nitrogen, total phosphorus and total nitrogen in domestic sewage to the maximum extent. The modular percolation system 2 comprises a protection unit 20 located uppermost and a number of packing units located below the protection unit. Each packing unit is composed of a plurality of packing subunits, the bottom of any packing subunit is provided with a stainless steel net 25, and the inside of any packing subunit contains a packing layer.
Specifically, the modular infiltration system 2 has a cabinet 24 for the protection unit 20 and the filler unit, the cabinet 24 has a plurality of drawer compartments, and the filler subunit is detachably mounted in the drawer compartments. Typically, the removable means may be a snap.
Specifically, the protection unit 20 is a hollow box structure, and has an open upper end and a hole at a lower end. The protection unit 20 is formed by providing a cabinet opened upward at an upper portion of the cabinet type stand 24. The box body can be a separate component, or can be welded (or otherwise) through sheet iron (or other materials) to the upper part of the cabinet type vertical frame 24. The hollow box body with the upward opening forms a concave part, and the water inlet system is embedded in the concave part in a sinking mode. The hollow box body is not filled with any filter material, and the main purpose is to prevent sewage from overflowing the outside of the box body due to untimely infiltration.
The number of the plurality of packing elements is at least 3. This example illustrates 3 packing elements. Referring to fig. 1, the uppermost packing unit 21 includes a first packing layer composed of coarse quartz sand and 10% of ceramsite; the middle layer packing unit 22 contains a second packing layer composed of fine quartz sand and 10% of ceramsite; the lowermost packing element 23 contains a third packing layer of crushed stone.
The coarse quartz sand has the particle size range of 2-4 mm, has small head loss, is used for intercepting impurities such as particulate matters and the like, and plays a role in rough filtration; the particle size range of the fine quartz sand is 0.5-1.2 mm, and the fine quartz sand is used for intercepting organic matter particles and colloidal particle substances and plays a fine filtration role; the surface of the ceramsite is rough, easy to form a film, and large in specific surface area, so that the ceramsite is suitable for rapid proliferation of microorganisms; the porosity among the rubbles is large, the water collection efficiency is high, and the rubble layer is connected with the water outlet pipe, so that the water outlet can be prevented from being blocked by impurities of the device.
The above-mentioned packing unit is composed of several packing subunits, specifically, referring to fig. 2 and 3, the uppermost packing unit 21 and the middle packing unit 22 are composed of 3 packing subunits, and the packing in the packing subunit in the uppermost packing unit 21 is the same; the packing subunits of the middle packing unit 22 are filled with the same material, and the bottom of each packing subunit is provided with a stainless steel net 25.
The filler layer in the lowest filler unit 23 is composed of a single crushed stone layer.
Last is the utility model discloses a water outlet system 3 has outlet pipe 30, outlet pipe 30 is connected in lower floor's filler unit 23, outlet pipe 30's delivery port height is not less than the top of lower floor's filler unit 23.
The utility model discloses a theory of operation does: the sewage firstly enters the water distribution main pipe 10 in the water distribution system 1, then flows into the water distribution branch pipe 11, and then gushes out into the protection unit 20 through the foaming device 12. In the process of percolating sewage from top to bottom in the modular percolating system 2, comprehensive physical, chemical and biological reactions are generated to remove pollutants, wherein a biological film formed on the surface of the filler mainly carries out biochemical reaction on organic matters in the sewage, so that the pollutants are degraded and removed.
Compared with the CRI system in the prior art, the utility model has the following characteristics:
the water distribution branch pipe 11 is connected with the foaming device 12. After the sewage passes through the foaming device 12, the flowing sewage is fully mixed with air, and oxygen required by the microorganism for treating the sewage in the aerobic stage is increased.
Secondly, the modularized percolation system 2 is formed by assembling detachable filler units 2, when the filler is blocked due to water quality change, falling of a biological membrane and the like, the filler units can be locally replaced, the membrane re-hanging time is reduced, and the modularized percolation system is easy to maintain.
And thirdly, the detachable filler unit is filled with a cheap ceramsite filter material, the ceramsite not only plays a supporting role, but also has microporous surfaces and large specific surface area, is suitable for the growth of various microorganisms, can form a stable and high-activity biological membrane on the surface, and has high quality of treated effluent.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not a limitation to the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the scope of protection of the right of the present invention.
Claims (6)
1. The utility model provides a vertical rural domestic sewage treatment equipment which characterized in that includes: the water inlet system (1), the modular infiltration system (2) and the water outlet system (3) are arranged from top to bottom; the modular infiltration system (2) comprises a protection unit (20) and a plurality of packing units arranged below the protection unit (20), wherein the packing units are sequentially connected in series from top to bottom, and each packing unit is detachably arranged in the modular infiltration system (2);
the modular infiltration system (2) comprises a cabinet type vertical frame (24) for arranging the protection unit (20) and the filler unit, wherein the cabinet type vertical frame (24) is provided with a plurality of drawer grids in which the filler unit is detachably arranged; each packing unit is composed of a plurality of packing subunits, the bottom of each packing subunit is provided with a stainless steel net (25), and the inside of each packing subunit is provided with a packing layer;
the number of the plurality of packing units is at least 3; wherein, the uppermost layer of packing units (21) comprises a first packing layer consisting of coarse quartz sand and 10% of ceramsite; the middle layer packing unit (22) contains a second packing layer which is composed of fine quartz sand and 10% of ceramsite; the lowermost packing element (23) contains a third packing layer of crushed stone.
2. The vertical rural domestic sewage treatment equipment according to claim 1, wherein the protection unit (20) is a hollow box structure, and the water inlet system (1) is sunk and embedded in the box structure of the protection unit (20).
3. The vertical rural domestic sewage treatment equipment according to claim 2, wherein the water inlet system (1) comprises a water distribution main pipe (10) and a plurality of water distribution units connected to the water outlet end of the water distribution main pipe (10).
4. The vertical rural domestic sewage treatment equipment according to claim 3, wherein each water distribution unit comprises a water distribution branch pipe (11) connected to the water distribution main pipe (10) and a foaming device (12) connected to the water outlet end of the water distribution branch pipe (11).
5. The vertical rural domestic sewage treatment equipment according to claim 4, wherein the water inlet system (1) further comprises a rotameter (13), and the rotameter (13) is arranged on the water distribution main pipe (10).
6. The vertical rural domestic sewage treatment equipment according to claim 1, wherein the water outlet system (3) comprises a water outlet pipe (30), the water outlet pipe (30) is connected with the packing unit at the lowest layer, and the height of the water outlet pipe (30) is not lower than the top of the packing unit at the lowest layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020164412.XU CN212640065U (en) | 2020-02-12 | 2020-02-12 | Vertical rural domestic sewage treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020164412.XU CN212640065U (en) | 2020-02-12 | 2020-02-12 | Vertical rural domestic sewage treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212640065U true CN212640065U (en) | 2021-03-02 |
Family
ID=74767264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020164412.XU Expired - Fee Related CN212640065U (en) | 2020-02-12 | 2020-02-12 | Vertical rural domestic sewage treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212640065U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111003882A (en) * | 2019-11-21 | 2020-04-14 | 河海大学 | Artificial beach multilayer structure biological water quality purification system and construction method thereof |
| CN115849550A (en) * | 2022-10-20 | 2023-03-28 | 同济大学 | Low-energy-consumption segmented artificial rapid infiltration system for enhancing sewage treatment efficiency of villages and towns |
-
2020
- 2020-02-12 CN CN202020164412.XU patent/CN212640065U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111003882A (en) * | 2019-11-21 | 2020-04-14 | 河海大学 | Artificial beach multilayer structure biological water quality purification system and construction method thereof |
| CN115849550A (en) * | 2022-10-20 | 2023-03-28 | 同济大学 | Low-energy-consumption segmented artificial rapid infiltration system for enhancing sewage treatment efficiency of villages and towns |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104761057B (en) | A kind of charcoal modularity composite vertical current artificial wetland system | |
| CN105668950B (en) | The back-washing method of floatation type comprehensive water treatment device, method for treating water and the equipment | |
| CN108503136B (en) | River channel treatment system | |
| CN203212433U (en) | Rural sewage treatment system | |
| CN212640065U (en) | Vertical rural domestic sewage treatment equipment | |
| CN112047499B (en) | Riverway water quality improving device and using method thereof | |
| CN216890553U (en) | Constructed wetland sewage treatment system for treating rural sewage | |
| CN107364973B (en) | Sewage treatment system, application thereof and sewage treatment method | |
| CN104829057B (en) | A kind of vertical bacteria filter system for rural scattered domestic sewage process | |
| CN113979603A (en) | Filling replaceable double-layer planting sleeve water-activating type modular constructed wetland device | |
| CN206089379U (en) | Sewage treatment plant is used at distributed family | |
| CN211339184U (en) | Domestic sewage integrated treatment equipment based on steel slag ceramsite filler biological filter | |
| CN106115924B (en) | Vertical-flow artificial wetland distributed sewage treatment equipment | |
| CN108793609A (en) | The method of urban rainwater management and processing | |
| CN211644786U (en) | Biochemical wetland ecological purification system for new rural domestic sewage | |
| CN210287078U (en) | Assembled river course point source pollutes normal position processing apparatus | |
| CN209872675U (en) | Rural small-size domestic sewage is collected, is handled, retrieval and utilization integration system | |
| CN204824353U (en) | Inversion formula bological aerated filter | |
| CN111302483A (en) | Efficient coupling type circulating rural sewage treatment device | |
| CN216614193U (en) | Artificial wetland | |
| CN107162197A (en) | Three rank O/A decentralized type sewages handle integrated apparatus and method | |
| CN210796140U (en) | Domestic sewage treatment device | |
| CN107963788A (en) | Multimode decentralized type sewage processing unit and method based on monitoring with numerical simulation | |
| CN206955755U (en) | Three rank O/A decentralized type sewages handle integrated apparatus | |
| CN111395254A (en) | Ecological bank protection module and system with primary rain purification function |
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: 20210302 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |