CN109896631A - A kind of biological synergetic purification type artificial swamp - Google Patents
A kind of biological synergetic purification type artificial swamp Download PDFInfo
- Publication number
- CN109896631A CN109896631A CN201910216028.1A CN201910216028A CN109896631A CN 109896631 A CN109896631 A CN 109896631A CN 201910216028 A CN201910216028 A CN 201910216028A CN 109896631 A CN109896631 A CN 109896631A
- Authority
- CN
- China
- Prior art keywords
- wetland
- layer
- artificial swamp
- type artificial
- purification type
- 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.)
- Pending
Links
- 238000000746 purification Methods 0.000 title claims abstract description 29
- 230000002195 synergetic effect Effects 0.000 title claims abstract description 22
- 241001465754 Metazoa Species 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003830 anthracite Substances 0.000 claims abstract description 9
- 239000003245 coal Substances 0.000 claims abstract description 9
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 8
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000010457 zeolite Substances 0.000 claims abstract description 8
- 239000011159 matrix material Substances 0.000 claims abstract description 6
- 241000196324 Embryophyta Species 0.000 claims description 23
- 241000361919 Metaphire sieboldi Species 0.000 claims description 10
- 241000233948 Typha Species 0.000 claims description 9
- 235000014676 Phragmites communis Nutrition 0.000 claims description 7
- 230000003750 conditioning effect Effects 0.000 claims description 7
- 241000252185 Cobitidae Species 0.000 claims description 4
- 241000237858 Gastropoda Species 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 abstract description 9
- 239000001301 oxygen Substances 0.000 abstract description 9
- 239000002689 soil Substances 0.000 abstract description 8
- 239000000758 substrate Substances 0.000 abstract description 6
- 235000013305 food Nutrition 0.000 abstract description 3
- 238000005056 compaction Methods 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000002028 Biomass Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000035568 catharsis Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
本发明公开了一种生物协同净化型人工湿地，包括厌氧调节池、管道、湿地池及出水端；湿地池中引入湿地动物；所述管道的一端连接厌氧调节池，管道的另一端连接湿地池；湿地池包括湿地植物层和基质层，湿地植物层位于基质层上方，湿地植物层种植有湿地植物，所述管道与湿地池的连接处位于基质层上端，出水端位于基质层下端，基质层从上至下依次包括无烟煤层、圆陶粒层、沸石层，所述基质层深度为30~40cm。本发明引入湿生动物健全人工湿地生态系统，延长食物链消耗能量；强化植物侧须根系，进而促进微生态系统的净化功能；降低土壤板结程度；改善土壤氧气条件，进而提升净化效率。
The invention discloses a biological synergistic purification type constructed wetland, which comprises an anaerobic regulation pool, a pipeline, a wetland pool and a water outlet; wetland animals are introduced into the wetland pool; one end of the pipeline is connected to the anaerobic regulation pool, and the other end of the pipeline is connected to Wetland pool; the wetland pool includes a wetland plant layer and a substrate layer, the wetland plant layer is located above the substrate layer, the wetland plant layer is planted with wetland plants, the connection between the pipeline and the wetland pool is located at the upper end of the substrate layer, and the water outlet is located at the lower end of the substrate layer, The matrix layer includes an anthracite coal layer, a round ceramsite layer, and a zeolite layer in sequence from top to bottom, and the depth of the matrix layer is 30-40 cm. The invention introduces wet animals to improve the artificial wetland ecosystem, prolongs the energy consumption of the food chain; strengthens the lateral fibrous root system of plants, thereby promoting the purification function of the micro-ecological system; reduces the degree of soil compaction; improves soil oxygen conditions, thereby improving purification efficiency.
Description
Technical field
The invention belongs to sewage treatment fields, in particular to how to utilize biological synergetic cleaning principle while fortification of plants root
It is the artificial swamp to carry out sewage treatment.
Background technique
Artificial swamp refers to the structure and function by simulating natural bioremediation, selects certain geographical location and landform, root
According to the artificial wetlands ecosystems for designing and building are needed, the functions such as sewage purification can be carried out by natural ecology process.But it supplies
Oxygen, it is easy to harden, microecosystem is active unstable the problems such as cause conventional manual's wetland takes up a large area, treatment effeciency is low etc.
Defect.
Currently, having anti-clogging processing technique for wetland problem easy to harden, also there are all kinds of aerations to fill for oxygen supply problem
Oxygen technology, but for microecosystem activity instability problem, there is presently no particularly effective technical cues.
Summary of the invention
Goal of the invention: in order to solve present in existing artificial wet land system oxygen supply, easy to harden, system activity is unstable,
The problems such as treatment effeciency is low, the present invention provide a kind of biological synergetic purification type artificial swamp.
Technical solution: a kind of biological synergetic purification type artificial swamp, including anaerobism conditioning tank, pipeline, wetland pond and water outlet
End；Wetland animal is introduced in wetland pond；One end of the pipeline connects anaerobism conditioning tank, and the other end of pipeline connects wetland pond；
Wetland pond includes wetland plant layer and hypothallus, and wetland plant layer is located above hypothallus, and wetland plant layer kind is implanted with wetland plant
The junction in object, the pipeline and wetland pond is located at hypothallus upper end, and water outlet is located at hypothallus lower end, and hypothallus is from top to bottom
It successively include anthracite coal measure, circle haydite layer, zeolite layer, the matrix layer depth is 30 ~ 40cm.
Preferably, the anthracite coal measure, circle haydite layer, zeolite layer filler equivalent arrangement.
Preferably, the wetland animal is that compatriot likes one of victory earthworm, river snail, loach, water earthworm or a variety of.
Preferably, wetland animal includes puberty wetland animal, puberty wetland animal ratio >=80%.
Preferably, the wetland plant is cattail or reed, and cattail or reed enter pond height≤60 cm, cattail or reed
Height tolerance≤15% of reed, plantation density are that 45 ~ 55 cm are colonized apart from square.
Preferably, the wetland surface in wetland pond is rectangle, and the length-width ratio of rectangle is 1 ~ 2:1, the wetland gradient≤0.2, wetland
Surface is divided into two gallerys along its length, and wetland plant is planted on gallery, and width of corridor is 0.7 ~ 1 m.
Preferably, the wetland tank waterpower load setting is 0.3 ~ 0.5 m3/(m2D), the water residence time is 3 days, white
Its flow 16 ~ 22 L/h, 8 ~ 12 L/h of night flow.
Preferably, wetland pond fluidised form is vertical current.
Preferably, if the wetland animal introduced is that compatriot loves victory earthworm, unit cubic meter volume and quantity ratio is added are as follows: 1:
200；If the wetland animal introduced is river snail, unit cubic meter volume and quantity ratio is added are as follows: 1:100；If the wetland introduced is dynamic
Object is loach, unit cubic meter volume and adds quantity ratio are as follows: 1:25；If the wetland animal introduced is water earthworm, cubic unit
Meter Ti Ji and add quantity ratio are as follows: 1:300.
The utility model has the advantages that the prior art that compares, the present invention provides a kind of biological synergetic purification type artificial swamp, for artificial
It is dynamic to introduce humidogene for the problems such as supplying oxygen present in wet land system, is easy to harden, microecosystem is active unstable, treatment effeciency is low
Object perfects Constructed Wetland Ecology System, extends food chain and consumes energy, while by control Wetland Substrate depth with fortification of plants
The side system of fibrous root, and then promote the purification function of microecosystem.For oxygen supply and problem easy to harden, the natural activity of wetland animal
A large amount of criss-cross ducts can be constituted in the soil, improve oxygen in soil condition while reducing soil hardening degree.For
Microecosystem activity and the low problem for the treatment of effeciency, control matrix effective height in 30 ~ 40cm with the fortification of plants side system of fibrous root,
Promote the purification function of microecosystem in conjunction with the bio-cooperation of wetland animal, and then promotes purification efficiency.Experiment discovery
The artificial swamp is to COD, NH4 +- N, TN, TP average removal rate be respectively 64.21%, 63.63%, 68.95%, 79.01%, than phase
Conventional wetland under the conditions of is higher by 15%, 21%, 19%, 16% respectively, is discharged average DO concentration than wetland conventional under the same terms
It is higher by 0.3mg/L.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is root biomass and total bacteria amount comparison diagram of the present invention under different substrates depth；
Fig. 3 is for the present invention to the removal rate of TN and conventional wetland comparison diagram under normal temperature state；
Fig. 4 is for the present invention to the removal rate of TP and conventional wetland comparison diagram under normal temperature state；
Fig. 5 is for the present invention to the removal rate of COD and conventional wetland comparison diagram under normal temperature state；
Fig. 6 is for the present invention to NH under normal temperature state4 +The removal rate of-N and conventional wetland comparison diagram.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples.
Embodiment one:
As shown in Figure 1, biological synergetic purification type artificial swamp, including anaerobism conditioning tank 1, pipeline 2, wetland pond 3 and water outlet 5；
Wetland animal is introduced in wetland pond 3；One end of the pipeline 2 connects anaerobism conditioning tank 1, and the other end of pipeline 2 connects wetland pond
3；Wetland pond 3 includes wetland plant layer 6 and hypothallus 4, and wetland plant layer 6 is located at 4 top of hypothallus, 6 kinds of wetland plant layer plants
There is wetland plant, the pipeline 2 and the junction in wetland pond 3 are located at 4 upper end of hypothallus, and water outlet 5 is located at 4 lower end of hypothallus.
Hypothallus 4 successively includes anthracite coal measure, circle haydite layer, zeolite layer from top to bottom, and the hierarchical sequence being arranged so meets filtering and inhales
The gradation of batter gap partial size, while upper part anthracite is soft, is suitable for aquatic animal existence.Anaerobism conditioning tank 1 is in wetland
Play pretreatment in system and stablize hydraulic loading, main catharsis is played in wetland pond 3.
The filler equivalent layering of the anthracite coal measure, circle haydite layer, zeolite layer.
The wetland animal is that compatriot loves victory earthworm, introduces compatriot and likes the unit cubic meter volume of victory earthworm and add quantity
Than for 1:200, wherein puberty wetland animal ratio is about 80%.It introduces hygrocole and perfects Constructed Wetland Ecology System, prolong
Long food chain consumes energy, can also put into other wetland animals.The natural activity of wetland animal can be constituted largely in the soil
Criss-cross duct improves oxygen in soil condition while reducing soil hardening degree.
The wetland plant is cattail, and the pond height that enters of cattail is 50 ~ 60 cm, and height tolerance is about 15%, plantation density
It is colonized for 50 cm apart from square.
The wetland surface in wetland pond is rectangle, and the length-width ratio of rectangle is 1 ~ 2:1, and the wetland gradient≤0.2, wetland surface is along length
Degree direction is divided into two gallerys, and wetland plant is planted on gallery, and width of corridor is 0.7 ~ 1 m.
Wetland pond fluidised form is vertical current.The wetland tank waterpower load setting is 0.4 m3/(m2D), water stops
Time is 3 days, daytime flow 16 ~ 22 L/h, 8 ~ 12 L/h of night flow.
Hypothallus 4 successively includes anthracite coal measure, circle haydite layer, zeolite layer, the 4 effective height control of hypothallus from top to bottom
System is in 10 cm.
Embodiment two: 4 effective height of hypothallus in biological synergetic purification type artificial swamp is controlled in 20 cm.In other
Hold just the same with embodiment one.
Embodiment three: 4 effective height of hypothallus in biological synergetic purification type artificial swamp is controlled in 30 cm.In other
Hold just the same with embodiment one.
Example IV: 4 effective height of hypothallus in biological synergetic purification type artificial swamp is controlled in 40 cm.In other
Hold just the same with embodiment one.
Embodiment five: 4 effective height of hypothallus in biological synergetic purification type artificial swamp is controlled in 50 cm.In other
Hold just the same with embodiment one.
After stable experiment operation a period of time of embodiment one to five, one plant of label was taken in each device at interval of 5 days
Cattail carries out root system observation, after fetching root system sample with shoveling block method, is put into refrigerator and saves.Each root system sample is first impregnated
It is that 0.2mm sieve is eluriated repeatedly with sieve pore after 1d.Sample after clean coal slag granules is put into evaporating dish, it will be thin with tweezers
Root (< 2mm, vernier caliper determine) is separated from impurity, while to be distinguished to radicula type and anyway.Radicula is distinguished
Afterwards, it is packed into paper bag label, drying to constant weight in 60 DEG C of temperature, and then weighing measures its biomass.Measure each embodiment
Root biomass and total bacteria amount are as shown in Figure 2.From Figure 2 it can be seen that total root biomass of example IV is most, total bacteria
It measures also most.For the low problem of microecosystem activity and treatment effeciency, control matrix effective height can be more in 30 ~ 40cm
The fortification of plants side system of fibrous root well promotes the purification function of microecosystem in conjunction with the bio-cooperation of wetland animal, in turn
Promote purification efficiency.
Embodiment six: wetland animal is not added in biological synergetic purification type artificial swamp, other content is complete with example IV
It is complete the same.Fig. 3 ~ 6 are the pollutant removal pair of example IV with the blank control group embodiment six for not adding wetland animal
Than figure.Example IV is respectively 64.21%, 63.63%, 68.95%, 79.01% to the average removal rate of COD, NH4+-N, TN, TP,
It is higher by 15%, 21%, 19%, 16% respectively than the conventional wetland under the same terms, example IV is discharged average DO concentration than identical item
Conventional wetland is higher by 0.3mg/L under part.
Claims (9)
1. a kind of biological synergetic purification type artificial swamp, which is characterized in that including anaerobism conditioning tank, pipeline, wetland pond and water outlet
End；Wetland animal is introduced in wetland pond；One end of the pipeline connects anaerobism conditioning tank, and the other end of pipeline connects wetland pond；
Wetland pond includes wetland plant layer and hypothallus, and wetland plant layer is located above hypothallus, and wetland plant layer kind is implanted with wetland plant
The junction in object, the pipeline and wetland pond is located at hypothallus upper end, and water outlet is located at hypothallus lower end, and hypothallus is from top to bottom
It successively include anthracite coal measure, circle haydite layer, zeolite layer, the matrix layer depth is 30 ~ 40cm.
2. biological synergetic purification type artificial swamp according to claim 1, which is characterized in that the anthracite coal measure, circle pottery
The filler equivalent arrangement of granulosa, zeolite layer.
3. biological synergetic purification type artificial swamp according to claim 1, which is characterized in that the wetland animal is compatriot
One of love victory earthworm, river snail, loach, water earthworm are a variety of.
4. biological synergetic purification type artificial swamp according to claim 1, which is characterized in that wetland animal includes the puberty
Wetland animal, puberty wetland animal ratio >=80%.
5. biological synergetic purification type artificial swamp according to claim 1, which is characterized in that the wetland plant is cattail
Or reed, height tolerance≤15% for entering pond height≤60 cm, cattail or reed of cattail or reed, plantation density is 45 ~
55 cm are colonized apart from square.
6. biological synergetic purification type artificial swamp according to claim 1, which is characterized in that the wetland surface in wetland pond is
The length-width ratio of rectangle, rectangle is 1 ~ 2:1, and the wetland gradient≤0.2, wetland surface is divided into two gallerys, wetland along its length
For planting on gallery, width of corridor is 0.7 ~ 1 m.
7. biological synergetic purification type artificial swamp according to claim 1, which is characterized in that the wetland tank waterpower load
It is set as 0.3 ~ 0.5 m3/(m2D), the water residence time is 3 days, daytime flow 16 ~ 22 L/h, 8 ~ 12 L/h of night flow.
8. biological synergetic purification type artificial swamp according to claim 1, which is characterized in that wetland pond fluidised form is vertical
Direct current.
9. biological synergetic purification type artificial swamp according to claim 3, which is characterized in that if the wetland animal introduced is
Compatriot loves victory earthworm, unit cubic meter volume and adds quantity ratio are as follows: 1:200；If the wetland animal introduced is river snail, unit is vertical
Square meter Ti Ji and add quantity ratio are as follows: 1:100；If the wetland animal introduced is loach, unit cubic meter volume and quantity is added
Than are as follows: 1:25；If the wetland animal introduced is water earthworm, unit cubic meter volume and quantity ratio is added are as follows: 1:300.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910216028.1A CN109896631A (en) | 2019-03-21 | 2019-03-21 | A kind of biological synergetic purification type artificial swamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910216028.1A CN109896631A (en) | 2019-03-21 | 2019-03-21 | A kind of biological synergetic purification type artificial swamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109896631A true CN109896631A (en) | 2019-06-18 |
Family
ID=66953764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910216028.1A Pending CN109896631A (en) | 2019-03-21 | 2019-03-21 | A kind of biological synergetic purification type artificial swamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109896631A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121570A (en) * | 2007-07-25 | 2008-02-13 | 东南大学 | Method and device for earthworm-enhanced artificial wetland treatment of domestic sewage |
| CN101585607A (en) * | 2009-07-03 | 2009-11-25 | 中国科学院水生生物研究所 | Preparation method for substrate of vertical-flow constructed wetlands |
| CN101691270A (en) * | 2009-11-03 | 2010-04-07 | 何航 | Assembled packing artificial vertical subsurface flow wetland unit, application thereof and sewage treatment process |
| CN201660528U (en) * | 2010-03-10 | 2010-12-01 | 贵州明威环保技术有限公司 | Sewage treatment unit of hybrid subsurface constructed wetland |
| CN102092859A (en) * | 2010-12-09 | 2011-06-15 | 中国科学院水生生物研究所 | Vertical-flow artificial wetland composite matrix |
| CN205061790U (en) * | 2015-08-31 | 2016-03-02 | 福建省春天园林工程有限公司 | Ecological water pollution processing system |
-
2019
- 2019-03-21 CN CN201910216028.1A patent/CN109896631A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121570A (en) * | 2007-07-25 | 2008-02-13 | 东南大学 | Method and device for earthworm-enhanced artificial wetland treatment of domestic sewage |
| CN101585607A (en) * | 2009-07-03 | 2009-11-25 | 中国科学院水生生物研究所 | Preparation method for substrate of vertical-flow constructed wetlands |
| CN101691270A (en) * | 2009-11-03 | 2010-04-07 | 何航 | Assembled packing artificial vertical subsurface flow wetland unit, application thereof and sewage treatment process |
| CN201660528U (en) * | 2010-03-10 | 2010-12-01 | 贵州明威环保技术有限公司 | Sewage treatment unit of hybrid subsurface constructed wetland |
| CN102092859A (en) * | 2010-12-09 | 2011-06-15 | 中国科学院水生生物研究所 | Vertical-flow artificial wetland composite matrix |
| CN205061790U (en) * | 2015-08-31 | 2016-03-02 | 福建省春天园林工程有限公司 | Ecological water pollution processing system |
Non-Patent Citations (5)
| Title |
|---|
| 上海市环境科学学会: "《发展中的上海环境科学》", 30 November 2010, 上海科学技术文献出版社 * |
| 中国环境科学学会: "《中国环境科学学会学术年会论文集 2012 第4卷》", 30 June 2012, 中国农业大学出版社 * |
| 张学峰等: "《湿地生态修复技术及案例分析》", 31 March 2016, 中国环境出版社 * |
| 徐德福等: "4种湿地植物的生理性状对人工湿地床设计的影响", 《农业环境科学学报》 * |
| 范瑞瑜: "《生态清洁小流域建设实施方案编制与工程设计 第2部 工程设计》", 30 November 2015, 黄河水利出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100378272C (en) | Stereo in-situ ecological urban water system repairing process | |
| CN202898113U (en) | Heat preservation type constructed wetland treatment system for rural domestic sewage | |
| CN107935307B (en) | River water purification system for enhancing biological decomposition through cyclic reoxygenation and implementation method | |
| CN101391841B (en) | High load earthworm biofilter for treating scattered rural sewage | |
| CN101293708A (en) | A Constructed Wetland and Its Application | |
| CN109083112A (en) | It is a kind of for reducing the ecological canal of paddy field contaminants in drainage | |
| WO2009094882A1 (en) | A tower type earthworm ecological filter chamber system | |
| CN102633407B (en) | Soil column combination matrix composite flow artificial wetland treatment system | |
| CN102633366A (en) | Mountainous urban artificial wetland sewage treatment system capable of controlling methane emission | |
| CN101391855B (en) | The Method of Using High Load Earthworm Biofilter to Treat Dispersed Sewage in Rural Areas | |
| CN101428909B (en) | A composite artificial ecological floating island and its construction method | |
| CN103819052B (en) | A kind of animal farm wastewater Zero discharging system | |
| CN102502966B (en) | An artificial hydroponic wetland device with the function of enriching nitrogen and phosphorus nutrients | |
| CN206692517U (en) | A kind of integrated combination wetland domestic sewage processing system | |
| CN110885161B (en) | Water quality purification and ecological construction system for lake and pond water body and implementation method thereof | |
| CN103553284B (en) | Semi-buried landscape type new countryside living sewage treatment system | |
| CN203505333U (en) | Device for breeding fishes and shrimps in stepped manner by using river water with different qualities | |
| CN103408144B (en) | Multi-stage free drop wetland unit with tidal properties and sewage treatment system | |
| CN108706826A (en) | Two-stage anaerobic-multiphase is percolated rural area decentralized type sewage processing system | |
| CN105000756B (en) | Ecological management system of river channel biology hatching bed | |
| CN201099638Y (en) | Submerged/Surface Constructed Wetlands | |
| CN109896631A (en) | A kind of biological synergetic purification type artificial swamp | |
| CN102616985A (en) | Ecological type manual fast-permeability sewage processing system | |
| CN202744419U (en) | Ecological purification device for treating biogas slurry for breeding livestock and poultry | |
| CN102398991A (en) | Underflow type garden filter tank sewage treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190618 |
|
| RJ01 | Rejection of invention patent application after publication |