CN208200673U - A kind of rural domestic sewage treatment pond - Google Patents
A kind of rural domestic sewage treatment pond Download PDFInfo
- Publication number
- CN208200673U CN208200673U CN201820388852.6U CN201820388852U CN208200673U CN 208200673 U CN208200673 U CN 208200673U CN 201820388852 U CN201820388852 U CN 201820388852U CN 208200673 U CN208200673 U CN 208200673U
- Authority
- CN
- China
- Prior art keywords
- area
- domestic sewage
- aerobic reactor
- reactor zone
- denitrification
- 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
Abstract
The utility model discloses a kind of rural domestic sewage treatment ponds, it is related to technical field of sewage, including including grille well, Prepositive denitrification area, anaerobic reaction area, hypoxia response area, aerobic reactor zone, rear-mounted denitrification area, sedimentation basin and ecological filter, contain denitrifying bacterium in the Prepositive denitrification area, the hypoxia response area and the rear-mounted denitrification area, contain polyP bacteria in the anaerobic reaction area, contains nitrobacteria in the aerobic reactor zone.The utility model can efficient process domestic sewage in rural areas, reduce draining in nitrogen and phosphorus content.
Description
[technical field]
The utility model relates to technical field of sewage, and in particular to a kind of rural domestic sewage treatment pond.
[background technique]
With the development of economy, the development of the raising of living standards of the people, rural area is also maked rapid progress.Along with the fast of rural area
Speed development, problem of environmental pollution are also more and more prominent.The deterioration and pollution of rural rivers Drainage Water Quality are in recent years also by more next
More concerns.Domestic sewage in rural areas is unprocessed or is directly discharged into water body through simple process, exacerbates the evil of Rural Water Environment
Change and shortage of water resources, directly threaten the safety of drinking water and the health of the people, influence agricultural production and crops peace
Entirely.
It is at present but the country sewage nitrogen phosphorus using most common method that domestic sewage in rural areas is handled using activated sludge process
Content is high, and existing technique is undesirable to nitrogen phosphorus ligands effect in water, and there are the risks of discharge beyond standards.How research is efficiently located
Domestic sewage in rural areas is managed, for the water environment pollution situation for improving rural areas, sustainable and stable development is pushed, further improves investment
Environment realizes the unification of society, economy, environmental benefit, is of great significance.
[utility model content]
To solve foregoing problems, the utility model provides a kind of rural domestic sewage treatment pond, and efficient process rural area is raw
Sewage living, reduces the nitrogen and phosphorus content in draining.
In order to achieve the above object, the utility model adopts the following technical solution:
A kind of rural domestic sewage treatment pond, it is characterised in that: the rural domestic sewage treatment pond includes grille well, preceding
Denitrification zone, anaerobic reaction area, hypoxia response area, aerobic reactor zone, rear-mounted denitrification area, sedimentation basin and ecological filter are set,
Contain denitrifying bacterium in the Prepositive denitrification area, the hypoxia response area and the rear-mounted denitrification area, the anaerobism is anti-
It answers and contains polyP bacteria in area, contain nitrobacteria in the aerobic reactor zone.
Preferably, the Prepositive denitrification area, anaerobic reaction area, hypoxia response area, rear-mounted denitrification are equipped in area
Diving mixer.
Preferably, the aerobic reactor zone includes air blower, micro-hole aerator and elastic filter material, the elastic filter material
Material be macromolecule organic material, mounting distance is 100mm~250mm, and the air blower is set to the aerobic reactor zone
Outside, the micro-hole aerator are set to the bottom of the aerobic reactor zone, and the air blower is connected with the micro-hole aerator,
And air is filled with into the aerobic reactor zone.
Preferably, water inlet pipe, water distributor, collector pipe, monitoring pipe and matrix bed body are equipped in the ecological filter, it is described
Matrix bed body successively includes coarse sands layer, sulphur layer, volcano rock stratum, extra large oyster shell and limestone layer from top to bottom, is set between each layer
There is isolation cloth, the surface of the coarse sands layer is equipped with wetland plant, and the water inlet pipe and water distributor are set to the upper of the matrix bed body
Side, the collector pipe are set to the bottom of the ecological filter.
After adopting the above technical scheme, the utility model has the advantages that
1, Prepositive denitrification area is set, carbon source in water is made full use of to remove nitrate nitrogen, eliminates nitrate nitrogen to anaerobic reaction area
Release the influence of phosphorus, inhale phosphorus for aerobic reactor zone and condition is provided is added without carbon source, reduce mixed liquid recycle ratio, save operation at
This.
2, there is elastic filter material the concentration of close microbes and hydrophily, large specific surface area, therefore microorganism to be improved,
Load height saves occupied area.Sludge reduction can also be realized simultaneously, compare traditional activated sludge process, residual active sludge
Minimizing can achieve half.Using short distance and synchronous nitration and denitrification effect occur after elastic filter material, it is not necessarily to carbon source and basicity
It adds, reflux ratio greatly reduces, and saves than traditional expense.
3, ecological filter is directed to domestic sewage in rural areas water quality characteristics, using a variety of efficient dephosphorization fillers, to ensure to handle effect
Fruit.
4, it can be realized sludge reduction, it is not necessary that sludge pump is separately provided.
5, Operation and Maintenance it is few, can long term continuous automatic operation, low power consumption and other advantages, investment cost is low.
These features and advantages of the utility model will carry out in detail in following specific embodiment and attached drawing
Exposure.The optimal embodiment of the utility model or means will carry out detailed performance in conjunction with attached drawing, but be not practical new to this
The limitation of type technical solution.In addition, it is each be with these features, element and the component occurred in attached drawing hereafter have it is multiple,
And different symbol or number is marked in order to indicate convenient, but indicates the component of same or similar construction or function.
[Detailed description of the invention]
The utility model is described in further detail with reference to the accompanying drawing:
Fig. 1 is the schematic diagram of the utility model embodiment one；
Fig. 2 is the schematic diagram of the utility model embodiment two.
In attached drawing:
1 grille well, 2 Prepositive denitrification areas, 3 anaerobic reaction areas, 4 hypoxia response areas, 5 aerobic reactor zones, 51 elastic filter materials,
52 air blowers, 53 micro-hole aerators, 6 rear-mounted denitrification areas, 7 sedimentation basins, 8 ecological filters, 81 wetland plants, 82 monitoring pipes, 83
The mouth of a river is crossed in water distributor, 84 matrix bed bodies, 9 pumps, 10 diving mixers, 11
[specific embodiment]
The technical solution of the utility model embodiment is explained below with reference to the attached drawing of the utility model embodiment and
Illustrate, but following embodiments are only the preferred embodiment of the utility model, and not all.Based on the implementation example in the implementation mode,
Those skilled in the art's obtained other embodiments without making creative work, belong to the utility model
Protection scope.
" one embodiment " or " example " or " example " mean that itself is described in conjunction with the embodiments quoted in this specification
A particular feature, structure, or characteristic can be included at least one embodiment disclosed in this patent.Phrase is " in one embodiment
In " appearance of each position in the description is not necessarily all referring to the same embodiment.
In the description of the utility model embodiment, term " on ", "lower", "left", "right", " transverse direction ", " longitudinal direction ",
The orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
It states the utility model rather than requires the utility model that must be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of utility model.
Embodiment one
The present embodiment provides a kind of rural domestic sewage treatment ponds, as shown in Figure 1, including grille well 1, Prepositive denitrification area
2, anaerobic reaction area 3, hypoxia response area 4, aerobic reactor zone 5, rear-mounted denitrification area 6, sedimentation basin 7 and ecological filter 8, it is preposition
Contain denitrifying bacterium in denitrification zone 2, hypoxia response area 4 and rear-mounted denitrification area 6, contain polyP bacteria in anaerobic reaction area 3,
Contain nitrifier in aerobic reactor zone 5 and releases phosphorus bacterium.
In grille well 1, the bottom of grille well 1 is equipped with pump 9, to send the processed domestic sewage in rural areas of grille well 1
To Prepositive denitrification area 2.Diving mixer 10 is installed in the bottom in Prepositive denitrification area 2, diving mixer 10 passes through installation
Frame is lifted on 2 bottom of Prepositive denitrification area, and the sludge in reaction zone is made to be at suspended state.2 He of Prepositive denitrification area
Be equipped between anaerobic reaction area 3 and cross the mouth of a river 11 for what domestic sewage in rural areas circulate, in the present embodiment, cross the mouth of a river 11 be set to it is preposition instead
The bottom of 2 side of nitrification zone.
3 bottom of anaerobic reaction area is equipped with diving mixer 10, and anaerobic reaction area 3 and hypoxia response area 4 passed through the mouth of a river
11 are connected, and in anaerobic reaction area 3, the setting position for crossing the mouth of a river 11 is located at the top of its side.
4 bottom of hypoxia response area is also equipped with diving mixer 10, and diving mixer 10 is lifted on anoxic by mounting rack
4 bottom of reaction zone, makes the sludge in reaction zone be at suspended state.Positioned at its side bottom cross the mouth of a river 11 make its with
Aerobic reactor zone 5 is connected.
Elastic filter material 51 is equipped in aerobic reactor zone 5, the material of elastic filter material 51 is macromolecule organic material, aerobic
Uniformly distributed in reaction zone 5, a diameter of 80mm, mounting distance are 100mm~250mm, and the present embodiment preferably uses 150mm.Good
It is additionally provided with air blower 52 and micro-hole aerator 53 in oxygen reaction zone 5, air blower 52 is micro- in the outside in rural domestic sewage treatment pond
Hole aerator 53 is connected in the bottom of aerobic reactor zone 5, the two, by air blower 5.2 and micro-hole aerator 5.3 to aerobic anti-
It answers and is filled with air in area 5, control dissolved oxygen.It is equipped with pump 9 in the bottom of aerobic reactor zone 5, to by the part of aerobic reactor zone 5
Nitrification liquid is back to Prepositive denitrification area 2 and hypoxia response area 4, and another part flow to next unit certainly.
The top crossed the mouth of a river 11 and be set to side wall between the two between aerobic reactor zone 5 and rear-mounted denitrification area 6, postposition
The bottom of denitrification zone 6 is again provided with diving mixer 10.Rear-mounted denitrification area 6 and sedimentation basin 7 pass through piping connection.
Pump 9 is equipped in sedimentation basin 7,9 connection sedimentation basin 7 of pump and anaerobic reaction area 3, the processed rural area of sedimentation basin 7 are raw
Sewage living includes sludge and processing water, and pump 9 enables sludge to be back to anaerobic reaction area 3.
Water inlet pipe, water distributor 83, collector pipe, monitoring pipe 82 and matrix bed body 84, matrix bed body are equipped in ecological filter 8
84 successively include coarse sands layer, sulphur layer, volcano rock stratum, extra large oyster shell and limestone layer from top to bottom, is equipped with isolation between each layer
Cloth, in the present embodiment, coarse sand thickness 100mm, sulphur thickness 100mm, volcanic rock thickness 150mm, extra large oyster shell thickness 100mm, stone
Lime stone thickness 150mm.Isolation cloth is non-woven fabrics, and filler is prevented to be lost.Wetland plant 81 is planted in coarse sands layer, is turned into together by it
With and photosynthesis, achieve the effect that synchronous denitrification dephosphorizing.Water inlet pipe and water distributor are set to the upside of matrix bed body 84, collector pipe
Set on the bottom of ecological filter 8, the domestic sewage in rural areas filtered by matrix bed body 84 is collected, and water is carried out by monitoring pipe 82
Quality detection is discharged after up to standard.
Embodiment two:
The present embodiment provides a kind for the treatment of method for rural sewage, as shown in Fig. 2, using agriculture provided by embodiment one
Village's Domestic sewage treatment tank, includes the following steps:
Step 1: domestic sewage in rural areas feeding grille well 1 is filtered；
Step 2: by step 1, treated that domestic sewage in rural areas enters that Prepositive denitrification area 2 carries out Prepositive denitrification
Processing, Prepositive denitrification area 2, which makes full use of, removes nitrate nitrogen by the carbon source in step 1 treated domestic sewage in rural areas, disappears
Except nitrate nitrogen releases anaerobic reaction area 3 influence of phosphorus, phosphorus is inhaled for aerobic reactor zone 5, condition is provided.In Prepositive denitrification area 2,
Hydraulic detention time be 1~4h, pH be 6.0~8.0, dissolved oxygen be 0.2mg/L~0.5mg/L, sludge concentration be 1.0g/L~
3.0g/L。
Step 3: by step 2, treated that domestic sewage in rural areas enters that anaerobic reaction area 3 carries out anaerobic reaction, is detesting
In oxygen reaction zone 3, the growth of polyP bacteria is suppressed, and just releases Quadrafos in its cell to meet own growth, together
When generate enough Energy Decomposition pollutants in water, partial organic substances carry out ammonification.The hydraulic detention time of anaerobic reaction area 3 is
1~2.5h, pH are 6.0~8.0, and dissolved oxygen is 0.1mg/L~0.2mg/L, and sludge concentration is 3.0g/L~5.0g/L.
Step 4: by step 3, treated that domestic sewage in rural areas enters that hypoxia response area 4 carries out hypoxia response, anti-nitre
Change bacterium using the organic matter passed through in step 3 treated domestic sewage in rural areas as carbon source, under the action of denitrifying bacterium,
Nitrogen is converted by nitrate nitrogen therein, realizes the process of denitrogenation.The hydraulic detention time in hypoxia response area 4 is 2~6h, and pH is
6.0~8.0, dissolved oxygen is 0.2mg/L~0.5mg/L, and sludge concentration is 2.0g/L~4.0g/L.
Step 5: by step 4, treated that domestic sewage in rural areas enters that aerobic reactor zone 5 carries out aerobic reaction, passes through
Air blower and micro-hole aerator are filled with air to aerobic reactor zone 5, by having in step 4 treated domestic sewage in rural areas
Machine object is degraded by microbial biochemical, while under the nitrification of nitrifier, converting nitrate nitrogen for ammoniacal nitrogen.Through aerobic reaction
Afterwards, polyP bacteria vigor is thus capable of sufficiently recovering.Due to the elasticity filled with organic and inorganic composite materials composition in aerobic reactor zone 5
Filtrate, biofilm is uniform, formed dissolved oxygen gradient, therefore, the matrix for making full use of elastic filter material 51 simultaneously, from by step everywhere
The orthophosphates of excess ingestion solubilised state in domestic sewage in rural areas after reason forms phosphorus containing sludge polyP bacteria aerobic phosphorus absorption.It is aerobic
The hydraulic detention time of reaction zone 5 is 10~15h, and pH is 6.0~8.0, and dissolved oxygen is 2.0mg/L~4.0mg/L, sludge concentration
For 2.0g/L~4.0g/L.Since the domestic sewage in rural areas after aerobic reaction is also partly refluxed to step 4 and step
Two, therefore, mixed liquid recycle ratio is 200%~400%.
Step 6: by step 5 treated domestic sewage in rural areas includes three parts, a part is back to step 2, and one
It is partly refluxed to step 4, another part enters rear-mounted denitrification area 6 and carries out rear-mounted denitrification processing, and denitrifying bacterium is utilized rear
Set the nitrate nitrogen in the further place to go sewage of endogenous metabolism substance in the domestic sewage in rural areas in denitrification zone 6.The anti-nitre of postposition
The hydraulic detention time for changing area 6 is 1~4h, and pH is 6.0~8.0, and dissolved oxygen is 0.5mg/L~2.0mg/L, and sludge concentration is
2.0g/L~4.0g/L.
Step 7: by step 6, treated that domestic sewage in rural areas enters sedimentation basin 7 is precipitated, the work of sedimentation basin 7
With being mud-water separation, by step 7, treated that domestic sewage in rural areas includes sludge and processing water.In the present embodiment, sludge
It is divided into two parts.A part is back to anaerobic reaction area 3, and return sludge ratio is 50%~100%, and another part is according to practical fortune
Market condition periodically discharges and transports outward processing.The hydraulic detention time of sedimentation basin 7 is 2~5h, hydraulic surface loading 0.6m3/
(m2H)~0.7m3/(m2·h)。
Step 8: processing water enters ecological filter 8, and in ecological filter 8, coarse sands layer plants wetland plant 8.1, passes through it
Assimilation and photosynthesis, achieve the effect that synchronous denitrification dephosphorizing.In sulphur layer by being generated during sulphur autotrophic denitrification
Ca2+, work as Ca2+With PO4 3-Sufficiently reaction removes phosphate by precipitation.Volcano rock stratum has suction-operated, and fire to phosphorus
There is 1-3 μm of micropore on the surface Shan Yan, and surface micro-structure is conducive to the growth of microorganism.Extra large oyster shell Ca, Al with higher and
Fe content, water soluble salt total amount are higher.When being reacted with phosphorus element, can discharge the more soluble metal that can precipitate phosphorus element from
Son makes it have higher phosphor-removing effect.Contain a large amount of Ca in limestone layer, the remaining phosphorus in water can be carried out further
Removal, it is ensured that water quality reaching standard discharge.Water is handled equably to flow into from the surface layer of matrix bed body 84 by water inlet pipe and water distributor, according to
It is secondary by coarse sands layer, sulphur layer, volcano rock stratum, extra large oyster shell, limestone layer after, then the collector pipe by being arranged in bottom is unified
After collection, qualified discharge.In order to observe water quality situation and treatment effect in time, it is respectively provided with monitoring pipe in ecological filter 8, is convenient for
Water quality monitoring.
More than, only specific embodiment of the present utility model, but protection scope of the utility model is not limited thereto,
Being familiar with the those skilled in the art should be understood that the utility model includes but is not limited to attached drawing and above in specific embodiment
The content of description.The modification of any function and structure principle without departing from the utility model is intended to be included in the model of claims
In enclosing.
Claims (4)
1. a kind of rural domestic sewage treatment pond, it is characterised in that: the rural domestic sewage treatment pond includes grille well, preposition
Denitrification zone, anaerobic reaction area, hypoxia response area, aerobic reactor zone, rear-mounted denitrification area, sedimentation basin and ecological filter, institute
It states in Prepositive denitrification area, the hypoxia response area and the rear-mounted denitrification area and contains denitrifying bacterium, the anaerobic reaction
Contain polyP bacteria in area, contains nitrobacteria in the aerobic reactor zone.
2. rural domestic sewage treatment pond according to claim 1, it is characterised in that: the Prepositive denitrification area, anaerobism
Reaction zone, hypoxia response area, rear-mounted denitrification are equipped with diving mixer in area.
3. rural domestic sewage treatment pond according to claim 1, it is characterised in that: the aerobic reactor zone includes air blast
Machine, micro-hole aerator and elastic filter material, the material of the elastic filter material are macromolecule organic material, mounting distance 100mm
~250mm, the air blower are set to the outside of the aerobic reactor zone, and the micro-hole aerator is set to the aerobic reactor zone
Bottom, the air blower are connected with the micro-hole aerator, and are filled with air into the aerobic reactor zone.
4. rural domestic sewage treatment pond according to claim 1, it is characterised in that: be equipped with water inlet in the ecological filter
Pipe, water distributor, collector pipe, monitoring pipe and matrix bed body, the matrix bed body from top to bottom successively include coarse sands layer, sulphur layer,
Volcano rock stratum, extra large oyster shell and limestone layer are equipped with isolation cloth between each layer, and the surface of the coarse sands layer is equipped with wetland plant,
The water inlet pipe and water distributor are set to the upside of the matrix bed body, and the collector pipe is set to the bottom of the ecological filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820388852.6U CN208200673U (en) | 2018-03-21 | 2018-03-21 | A kind of rural domestic sewage treatment pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820388852.6U CN208200673U (en) | 2018-03-21 | 2018-03-21 | A kind of rural domestic sewage treatment pond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208200673U true CN208200673U (en) | 2018-12-07 |
Family
ID=64527413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820388852.6U Active CN208200673U (en) | 2018-03-21 | 2018-03-21 | A kind of rural domestic sewage treatment pond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208200673U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467264A (en) * | 2019-09-02 | 2019-11-19 | 安徽舜禹水务股份有限公司 | A kind of reinforcing air lift denitrogenation circulating sewage processing equipment |
| CN113371926A (en) * | 2021-04-30 | 2021-09-10 | 东南大学 | Rural distributed domestic sewage biological ecological coupling device with sustainability |
| CN113443713A (en) * | 2021-07-28 | 2021-09-28 | 北控水务(中国)投资有限公司 | Device and method for advanced denitrification treatment of high ammonia nitrogen sewage |
-
2018
- 2018-03-21 CN CN201820388852.6U patent/CN208200673U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467264A (en) * | 2019-09-02 | 2019-11-19 | 安徽舜禹水务股份有限公司 | A kind of reinforcing air lift denitrogenation circulating sewage processing equipment |
| CN110467264B (en) * | 2019-09-02 | 2024-04-05 | 安徽舜禹水务股份有限公司 | Enhanced gas stripping denitrification circulating sewage treatment equipment |
| CN113371926A (en) * | 2021-04-30 | 2021-09-10 | 东南大学 | Rural distributed domestic sewage biological ecological coupling device with sustainability |
| CN113371926B (en) * | 2021-04-30 | 2022-04-12 | 东南大学 | Rural distributed domestic sewage biological ecological coupling device with sustainability |
| CN113443713A (en) * | 2021-07-28 | 2021-09-28 | 北控水务(中国)投资有限公司 | Device and method for advanced denitrification treatment of high ammonia nitrogen sewage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105585122B (en) | A kind of high-ammonia nitrogen low C/N is than waste water treatment system and treatment process | |
| CN102775025B (en) | Municipal life wastewater treatment system with high efficiency and low energy consumption | |
| CN108218150A (en) | A kind of rural domestic sewage treatment pond and processing method | |
| CN106810019A (en) | A kind of reinforced phosphor-removing and sludge decrement type sewage treatment process | |
| CN107585974B (en) | Sewage treatment method based on MBBR (moving bed biofilm reactor) process | |
| CN208200673U (en) | A kind of rural domestic sewage treatment pond | |
| CN209226777U (en) | A kind of reinforcing advanced nitrogen dephosphorization process sewage-treatment plant | |
| CN106430845A (en) | Kitchen garbage wastewater treatment apparatus | |
| CN210915752U (en) | Compact MBBR and super-efficient separation coupled deep nitrogen and phosphorus removal treatment system | |
| CN106830565A (en) | A kind of waste water advanced removal of carbon and nitrogen processing unit and its technique | |
| CN108658377A (en) | A kind of while denitrogenation dephosphorizing total flood sewage water treatment method | |
| CN112897696A (en) | Device and method for biological nitrogen and phosphorus removal based on staged water inflow | |
| CN1309665C (en) | Nitrogen and phosphorus removing process | |
| CN106915867B (en) | Culture wastewater biochemical treatment system and preparation method and application of treatment by-product thereof | |
| CN110615534A (en) | Sulfur-iron autotrophic denitrification device and application thereof | |
| CN108793395A (en) | Construction method, denitrification dephosphorization apparatus and the denitrification and dephosphorization method of denitrification dephosphorization apparatus | |
| CN209872514U (en) | Composite ecological reactor based on A2O | |
| CN208732851U (en) | A kind of MBBR high standard sewage disposal system | |
| CN109502751A (en) | A kind of green top partitioning type multistage AO integrated sewage disposal technique | |
| CN207998522U (en) | A kind of packing type country sewage integrated treatment unit | |
| CN108793405A (en) | Build sewage water denitrification dephosphorization apparatus method, denitrification dephosphorization apparatus and denitrification and dephosphorization method | |
| CN202945124U (en) | Urban sewage treatment system with high efficiency and low energy consumption | |
| CN112429840A (en) | Improved artificial rapid infiltration integrated device based on agricultural waste carbon slow release enhanced biological nitrogen and phosphorus removal and application thereof | |
| CN218579793U (en) | Compound nitrogen and phosphorus removal constructed wetland-microbial fuel cell system | |
| CN206680346U (en) | A kind of waste water advanced removal of carbon and nitrogen processing unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |