CN109502757A - Circulating type ecological water tank test device for water purification - Google Patents
Circulating type ecological water tank test device for water purification Download PDFInfo
- Publication number
- CN109502757A CN109502757A CN201811438800.6A CN201811438800A CN109502757A CN 109502757 A CN109502757 A CN 109502757A CN 201811438800 A CN201811438800 A CN 201811438800A CN 109502757 A CN109502757 A CN 109502757A
- Authority
- CN
- China
- Prior art keywords
- water
- water tank
- tank
- test device
- sink
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 275
- 238000000746 purification Methods 0.000 title claims abstract description 34
- 238000012360 testing method Methods 0.000 title claims abstract description 16
- 239000010865 sewage Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 241000196324 Embryophyta Species 0.000 description 58
- 239000000126 substance Substances 0.000 description 21
- 210000002421 cell wall Anatomy 0.000 description 10
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 244000144992 flock Species 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000007705 chemical test Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 230000008121 plant development Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Hydroponics (AREA)
Abstract
本发明提出了一种用于水体净化的循环式生态水槽试验装置，包括控制电箱、用于种植净化植物的水槽和分别与水槽两端相连通的第一水箱、第二水箱，所述第一水箱的底部不低于所述水槽，所述第一水箱的下端设有出水口，所述第一水箱中的水从出水口经进水管流入水槽内，所述水槽内的水通过与所述水槽上端设有的溢流口相连通的溢流管流入所述第二水箱内；所述第一水箱与所述第二水箱通过连接管道相连通，所述连接管道上设有水泵，所述第一水箱内设有水位计，所述水泵和所述水位计与所述控制电箱电路连接。本发明实现了污水循环净化，减少水槽的运行长度，降低装置的制作成本与占地面积，治理效果较佳。
The invention proposes a circulating ecological water tank test device for water purification, including a control electric box, a water tank for planting purified plants, and a first water tank and a second water tank respectively connected to both ends of the water tank. The bottom of a water tank is not lower than the water tank, the lower end of the first water tank is provided with a water outlet, the water in the first water tank flows into the water tank from the water outlet through the water inlet pipe, and the water in the water tank passes through the The overflow pipe connected with the overflow port provided on the upper end of the water tank flows into the second water tank; the first water tank and the second water tank are connected through a connecting pipe, and a water pump is arranged on the connecting pipe, so the The first water tank is provided with a water level gauge, and the water pump and the water level gauge are electrically connected to the control electric box. The invention realizes the circulating purification of sewage, reduces the running length of the water tank, reduces the manufacturing cost and floor space of the device, and has a better treatment effect.
Description
Technical field
The present invention relates to technical field of water body purification, and in particular to a kind of circulating ecological sink examination for water body purification
Experiment device.
Background technique
Water is the material base of socio-economic development and social progress, but China's water resources shortage, is located at the world's most water shortage
National forefront；Especially in recent years, with the development of the raising of human living standard and production economy, water pollution is seriously
One of the main reason for causing China's water resources shortage.
Currently, passing through the method for launching chemical substance mostly for water pollution carries out purified treatment, not only higher cost,
And it is easy to produce secondary pollution.Although being controlled with the development of society, also gradually using water plant pollution control of water
It manages ineffective；And due in order to improve regulation effect, needing to increase water plant culture apparatus during water body treating
Volume to cultivate more water plants, higher cost, and effect is lower.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of circulating ecological flume test dress for water body purification
It sets, the running length of experimental tank can be reduced using circulating ecological sink experimental rig, reduce the cost of manufacture of device and account for
Ground area, and sink hydraulic detention time can be dynamically controlled, regulation effect is preferable.
The technical scheme of the present invention is realized as follows: a kind of circulating ecological flume test dress for water body purification
It sets, including control electronic box, the sink for planting purifying plant and the first water tank, the second water that are connected with sink both ends respectively
Case, the bottom of first water tank are not less than the sink, and the lower end of first water tank is equipped with water outlet, first water tank
In water flowed into sink from water outlet through water inlet pipe, water in the sink passes through the overflow port that is equipped with the sink upper end
The overflow pipe being connected flows into second water tank；First water tank is connected with second water tank by connecting pipe
Logical, the connecting pipe is equipped with water pump, be equipped in first water tank water-level gauge, the water pump and the water-level gauge with it is described
Electronic box circuit connection is controlled, the control electronic box can make the second water according to the working condition of the water pump for water level control in the first water tank
Water flow in case is returned in the first water tank；The purifying plant includes bubbling through the water column in the emergent aquactic plant of sink cell wall, sink
Floating plant and submerged plant set on bottom of gullet, the water in first water tank circulate through the purifying plant
It is purified.
Optionally, the angle between the bottom of the sink and the cell wall of sink two sides is 100 °~110 °.
Optionally, the cell wall of the sink is equipped with multiple the first fixed devices for fixing emergent aquactic plant, sink
Bottom is equipped with the second fixed device for multiple fixed submerged plants, and interval pre-determined distance is equipped with multiple be used on the sink
The intercept net of fixed floating plant.
Optionally, the plant metric density of the emergent aquactic plant is 0.8-1.2kg/m2, and the phytomass of the floating plant is close
Degree is 0.8-1kg/m2, the phytomass 0.8-1kg/m2 of the submerged plant.
Optionally, the floating plant is 25%~30% in the coverage rate of the water surface.
Optionally, the water inlet pipe is equipped with flowmeter and the inlet valve for controlling water volume flow rate in water inlet pipe.
Optionally, the water volume flow rate is 60l/h-500l/h.
Optionally, the sink lower end is equipped with drainage hole, and the drainage hole is connected with drainage pipeline.
Optionally, the drainage hole is equipped with filter device, and the drainage pipeline is equipped with drain valve.
Optionally, the sink be it is multiple, multiple sinks are simultaneously listed on fixed frame, the both ends of sink respectively with the first water
Case, the second water tank are connected.
Compared with prior art, the invention has the following advantages that the in the circulating ecological sink experimental rig of the present invention
One water tank, sink, intercommunication forming circuit is to make sewage realization circulate between the second water tank, and then by net in sink
Change plant and decomposed, converted and absorbed nitrogen phosphorus substance or other substances in sewage etc., to realize circulating purification, reduces water
The running length of slot reduces the cost of manufacture and occupied area of device, and can dynamically control sink hydraulic detention time, administers
Effect is preferable.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
The structural representation that Fig. 1 is the present invention for a circulating ecological sink experimental rig wherein embodiment for water body purification
Figure；
The main view that Fig. 2 is the present invention for a circulating ecological sink experimental rig wherein embodiment for water body purification；
Fig. 3 is the present invention for the sink after planting purifying plant in the circulating ecological sink experimental rig of water body purification
Sectional view；
Fig. 4 is section of the present invention for sink in circulating ecological one embodiment of sink experimental rig of water body purification
Figure.
Attached drawing mark: 1 control electronic box；2 sinks；21 overflow ports；22 drainage holes；23 first fixed devices；24 second is fixed
Device；25 intercept nets；3 first water tanks；31 water outlets；32 water-level gauges；4 second water tanks；5 water inlet pipes；51 inlet valves；52 flows
Meter；6 overflow pipes；7 connecting pipes；8 water pumps；91 emergent aquactic plants；92 floating plants；93 submerged plants；10 drainage pipelines；101 rows
Water valve；11 fixed frames；12 fixed frames.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Refering to fig. 1~Fig. 3, the circulating ecological sink experimental rig disclosed by the invention for water body purification, including control
Electronic box 1 processed, the sink 2 for planting purifying plant and the first water tank 3 being connected respectively with 2 both ends of sink, the second water tank 4,
The bottom of first water tank 3 is not less than sink 2, and the lower end of the first water tank 3 is equipped with water outlet 31, the water in the first water tank 3 from
Water outlet 31 flows into sink 2 through water inlet pipe 5, what the water in sink 2 was connected by the overflow port 21 being equipped with 2 upper end of sink
Overflow pipe 6 flows into the second water tank 4；First water tank 3 is connected with the second water tank 4 by connecting pipe 7, is set in connecting pipe 7
There is water pump 8, water-level gauge 32, water pump 8 and water-level gauge 32 and control 1 circuit connection of electronic box are equipped in the first water tank 3, controls electronic box 1
The water flow in the second water tank 4 is returned in first water tank 3 according to the working condition of the water pump for water level control 8 in the first water tank 3；Purification
Plant includes the floating plant 92 bubbled through the water column in the emergent aquactic plant 91 of 2 cell wall of sink, sink 2 and is set to 2 bottom of sink
Submerged plant 93, the water in the first water tank 3 circulates through purifying plant and purified.
Wherein, the first water tank 3, which can be fixed on, makes the bottom of the first water tank 3 not low on fixed frame 12 or on other devices
In the top of sink 2, can just make to generate difference in height between 2 liquid level of the first water tank 3 and sink to be conducive to the weight that difference in height generates
Power provides the power of water body flow, and then water is made to flow into sink 2 from the first water tank 3.After sewage flows into sink 2, by sink 2
The purifying plant root of plantation or blade directly absorb nitrogen phosphorus and other substances in water body；Or by being attached to 2 slot of sink
Microorganism conversion on wall, 2 bottom of sink, plant root or blade decompose various forms of nitrogen phosphorus substances in water body or other
Substance, then by the demand of plant growth and development, absorbed from root or blade etc., the substance in water body is transferred to plant
It is interior, it by the replacement and harvesting of microorganism conversion in later period water and plant, takes away in water body and is absorbed by plants substance, thus real
The purpose of existing purifying water body.
Since the first water tank 3 and sink 2 are there are the difference in height of liquid level, the water in the first water tank 3 can be generated in difference in height
It is flowed into sink 2 under gravity；During this, when the water level in sink 2 reaches overflow port 21, likewise, due to sink 2 and the
There are the difference in height of liquid level between two water tanks 4, the water in sink 2 also can flow into the second water tank 4 under the gravity that difference in height generates
In；When water-level gauge 32 detects the water level of the water in the first water tank 3 lower than preset water level range, control electronic box 1 controls water pump 8
It is pumped into water in first water tank 3 from the second water tank 4, when water level is higher than preset water level range, control electronic box 1, which controls water pump 8, to be stopped
Running；By the difference in height for the liquid level that the first water tank 3 and sink 2 always exist, the stream of the lower end water outlet of the first water tank 3 is maintained
Speed forms continuous circulation loop.Water body can constantly be purified, after purification during circulation by the purifying plant in sink 2
Water body meet and be then exhausted from outside after emission request, complete the dirty water decontamination handles process.
Further, the angle between the cell wall of 2 two sides of the bottom of sink 2 and sink is 100 °~110 °, makes sink 2
Cross section forms an inverted trapezoidal, as shown, can increase the water surface product in sink 2, and is easy to the vertical of 2 plant of sink
Body arrangement, the plant for improving sink 2 put quantity.Since the two sides cell wall of sink 2 and 2 bottom of sink form an inverted trapezoidal,
The more conducively flowing of water body, when the water in the first water tank 3 enters in sink 2, water body can increase water body under state of disturbance
Middle dissolved oxygen content, the suction conducive to microorganism in sink to the conversion and purifying plant of substance to nitrogen phosphorus substance or other substances
It receives.Wherein, 2 cell wall of sink and the angle of 2 bottom of sink are preferably 104 °, and it is excessive to the generation of 2 cell wall of sink both to have avoided water body
Pressure, also achieve and increase water surface product in sink 2, increase plant and put the purpose of quantity.When 2 cell wall of sink and sink
When the angle of 2 bottoms is 104 °, purification efficiency is higher.
Further, the cell wall of sink 2 is equipped with multiple the first fixed devices 23 for fixing emergent aquactic plant 91, such as solid
Fixed patch etc., prevents emergent aquactic plant 91 from flowing with the flowing of water body, in turn results in and flock together, be unfavorable for emergent aquactic plant 91 to nitrogen phosphorus
The absorption of substance or other substances；The bottom of sink 2 is equipped with the second fixed device 24 for multiple fixed submerged plants 93, such as
Fixed ring etc. is prevented from submerged plant 93 and flows with the flowing of water body and cause to flock together, is unfavorable for submerged plant 93 to nitrogen
The absorption of phosphorus substance or other substances；It is spaced pre-determined distance on sink 2 and is equipped with multiple intercept nets for being used to fix floating plant 92
25, floating plant 92 is prevented from the flowing of water body and all piles up downstream, is unfavorable for floating plant 92 to nitrogen phosphorus substance
Or the absorption of other substances.
Wherein, in order to maximize purifying water body, the plant metric density of emergent aquactic plant 91 is 0.8-1.2kg/m2, floating plant
92 plant metric density is 0.8-1kg/m2, the phytomass 0.8-1kg/m2 of submerged plant 93, under this planting density, can make water body
Purification efficiency reach maximization.In addition, floating plant 92 is in water in order to avoid influencing the photosynthesis that submerged plant 93 grows
The coverage rate in face is 25%~30%, makes light that can be irradiated to submerged plant 93.
Further, water inlet pipe 5 is equipped with flowmeter 52 and the inlet valve 51 for controlling water volume flow rate in water inlet pipe 5,
Water volume flow rate is allowed to be maintained between 60l/h-500l/h, so that residence time of the dynamic control water in sink 2, makes the net of water body
Change efficiency to maximize.Since the planting density of purifying plant, implantation time, light irradiation time and vegetation growth state etc. inhale plant
It is influential for receiving the speed of nitrogen phosphorus substance or other substances, it is therefore desirable to by controlling the flow velocity of water body to control water in water
Residence time in slot 2, so that the purification efficiency of water body maximizes.
Certainly, water inlet water pump, water inlet water pump and control electricity can also be arranged in alternatively embodiment in water inlet pipe 5
Case 1 is connected, and controls water volume flow rate in water inlet pipe 5 by control electronic box 1.
In above-described embodiment, 2 lower end of sink is equipped with drainage hole 22, and drainage hole 22 is connected with drainage pipeline 10.Sewage exists
After recycling some cycles in apparatus of the present invention, water sample is taken to carry out chemical test analysis index of correlation；When its index of correlation reaches
When test requirements document or established standards, the drainage hole 22 for opening 2 lower end of sink keeps water discharge external；Water in second water tank 4 is also complete
Portion is evacuated in the first water tank 3 by water pump 8, and outside is discharged by sink 2.Wherein, drainage hole 22 is equipped with filter device, such as filters
Net, intercept net 25 or sieve etc., the sundries in anti-water stopping trough 2 enter in drainage pipeline 10.Drainage pipeline 10 is equipped with draining
Valve 101 closes drain valve 101, prevents water from flowing out when water body index of correlation processed does not reach test requirements document or established standards
It is external.
In above-described embodiment, in order to accelerate the purification of sewage, settable multiple sinks 2, multiple sinks 2 are simultaneously listed in fixed frame
On 11；Also, the both ends of all sinks 2 are connected with the first water tank 3, the second water tank 4 respectively, be respectively equipped with water inlet pipe 5,
Outlet pipe and overflow port 21, drainage hole 22 etc..
Intercommunication is formed between the first water tank 3, sink 2, the second water tank 4 in the circulating ecological sink experimental rig of the present invention
The nitrogen in sewage is decomposed and absorbed by the purifying plant in sink 2 to make sewage realization circulate in circuit
Phosphorus substance or other substances etc., to realize circulating purification.The present invention reduces the running length of sink 2, reduces the production of device
Cost and occupied area, and 2 hydraulic detention time of sink can be dynamically controlled, regulation effect is preferable.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811438800.6A CN109502757A (en) | 2018-11-28 | 2018-11-28 | Circulating type ecological water tank test device for water purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811438800.6A CN109502757A (en) | 2018-11-28 | 2018-11-28 | Circulating type ecological water tank test device for water purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109502757A true CN109502757A (en) | 2019-03-22 |
Family
ID=65751048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811438800.6A Pending CN109502757A (en) | 2018-11-28 | 2018-11-28 | Circulating type ecological water tank test device for water purification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109502757A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359417A (en) * | 2019-07-23 | 2019-10-22 | 南昌大学 | A kind of multi-functional portable type Tailings Dam dam break experimental provision |
| CN112892475A (en) * | 2021-01-15 | 2021-06-04 | 仲恺农业工程学院 | Iron modified biochar and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202113877U (en) * | 2011-04-22 | 2012-01-18 | 天津渤海职业技术学院 | Condensate water circulating device for experiment |
| CN103374898A (en) * | 2012-04-28 | 2013-10-30 | 北京林业大学 | Dynamic water circulation river reactor and water quality purifying method for polluted river |
| CN209668889U (en) * | 2018-11-28 | 2019-11-22 | 仲恺农业工程学院 | A kind of circulating ecological sink experimental rig for water body purification |
-
2018
- 2018-11-28 CN CN201811438800.6A patent/CN109502757A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202113877U (en) * | 2011-04-22 | 2012-01-18 | 天津渤海职业技术学院 | Condensate water circulating device for experiment |
| CN103374898A (en) * | 2012-04-28 | 2013-10-30 | 北京林业大学 | Dynamic water circulation river reactor and water quality purifying method for polluted river |
| CN209668889U (en) * | 2018-11-28 | 2019-11-22 | 仲恺农业工程学院 | A kind of circulating ecological sink experimental rig for water body purification |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359417A (en) * | 2019-07-23 | 2019-10-22 | 南昌大学 | A kind of multi-functional portable type Tailings Dam dam break experimental provision |
| CN112892475A (en) * | 2021-01-15 | 2021-06-04 | 仲恺农业工程学院 | Iron modified biochar and preparation method and application thereof |
| CN112892475B (en) * | 2021-01-15 | 2023-02-28 | 仲恺农业工程学院 | Iron-modified biochar and its preparation method and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100398465C (en) | Composite artificial marshland water quality clarification system in north low-temperature area | |
| CN101538106B (en) | Energy-free sewage treatment plant | |
| CN103803762B (en) | A kind of organic composite soil efficient ecological water cleaning systems | |
| CN102531293B (en) | Centralized treatment system for sewage in rural area | |
| CN101445297A (en) | Method for advanced treatment of papermaking wastewater | |
| CN108821430A (en) | A kind of hydrolysis acidification reaction tower | |
| CN109502757A (en) | Circulating type ecological water tank test device for water purification | |
| CN110183037A (en) | A kind of farmland irrigating drainage purified treatment circulatory system | |
| CN205367870U (en) | Dark bed bioreactor of denitrification | |
| CN101692782A (en) | Fertigation facility of domestic sewage after biochemical treatment | |
| CN205328836U (en) | Rural domestic sewage integral type processing apparatus | |
| CN207612850U (en) | A kind of seedling hydroponic device | |
| CN207468298U (en) | A kind of scientific and technological wetland bank filter system administered for black-odor riverway | |
| CN209668889U (en) | A kind of circulating ecological sink experimental rig for water body purification | |
| CN208995185U (en) | Coagulating formula inclined tube horizontal sedimentation tank | |
| CN104986862B (en) | Surface flow and sub-surface flow integrated composite constructed wetland suitable for treatment of eutrophic water body | |
| CN219156677U (en) | A high-efficiency filtration cycle backflow contact oxidation pond | |
| CN207002522U (en) | A kind of domestic sewage in rural areas focuses on regeneration device | |
| CN207685083U (en) | A kind of high efficiency sewage treatment facility | |
| CN102409875A (en) | Ecological swimming pool | |
| CN207491841U (en) | A kind of green cultivation system for shallow water area | |
| CN106746188B (en) | A rural domestic sewage treatment system | |
| CN215270119U (en) | Ecological cycle symbiotic system for fish and vegetable symbiosis | |
| CN202857558U (en) | Automatic circulating three-dimensional fry incubator | |
| CN211712873U (en) | A Constructed Wetland Purification System for Treating Rural Domestic Sewage |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190322 |