CN106396275A - Rural area domestic sewage collection and treatment ecological network system - Google Patents
Rural area domestic sewage collection and treatment ecological network system Download PDFInfo
- Publication number
- CN106396275A CN106396275A CN201610986805.7A CN201610986805A CN106396275A CN 106396275 A CN106396275 A CN 106396275A CN 201610986805 A CN201610986805 A CN 201610986805A CN 106396275 A CN106396275 A CN 106396275A
- Authority
- CN
- China
- Prior art keywords
- ecological
- sewage
- domestic sewage
- swag
- network system
- 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
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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The invention discloses a rural area domestic sewage collection and treatment ecological network system, which includes a node formed from a biogas pool, an ecological pond, and an artificial wetland; and a link which connects each of the nodes and which is formed from a pipe and an ecological ditch. The biogas pool collects the sewage resulted from rural household toilets; the ecological pond collects and temporarily stores the domestic sewage resulted from kitchen uses, bathing uses and from the preliminarily treated biogas pool; the artificial wetland purifies and treats the collected domestic sewage; the pipe connects the hole of discharging domestic sewage of each rural household, the biogas pool and the biological pond, and transports the domestic sewage; the ecological ditch treats the sewage through the perennial water resistant and root developed plants, and acts as a link between the biological pond and the artificial wetland, and serially connects the whole biological network system of collecting and treating rural domestic sewage; the maintenance and management of the biological network system is simple, the running cost is low, the process is simple, and the operability is extremely strong.
Description
Technical field
The invention belongs to technical field of sewage, the ecological net of more particularly, to a kind of rural domestic sewage collection and process
Network system.
Background technology
Compared with city, rural population density is low, distribution dispersion, and sanitary sewage discharge is wide, and the economic skill in rural area
Art is weak, lacks the fund of abundance and the supervisory engineering staff of specialty, therefore rural domestic sewage treatment mode can not indiscriminately imitate or
Apply mechanically urban wastewater treatment pattern, must be in conjunction with rural area truth and sanitary sewage feature science decision.In recent years, with China rural area
Development and rural area living standards of the people rapid raising, the discharge capacity of domestic sewage in rural areas is continuously increased, domestic sewage in rural areas
Just becoming the one of the main reasons that China's Ecological Environment deteriorates, the serious sustainable development restricting agricultural and rural economy environment
Exhibition.Due to rural pollution source dispersion and wide, and limited by natural conditions, have dispersion, not easily collecting the features such as, therefore greatly
The laying sewage collecting pipe network of scope is more difficult.And domestic sewage in rural areas is through simple by existing most of urban residents
Anaerobic tank process after be just directly discharged into existing do not manage irrigation canals and ditches, the collection of domestic sewage in rural areas is not concentrated, and easily pollution is attached
Nearly river and lake.Limited so that domestic sewage in rural areas can not possibly include large-scale centralized Sewage Plant by rural area each side condition
Concentration is processed, thus the treatment technology of existing domestic sewage in rural areas often relies on rural area existence conditionses and selected, including
Biochemical treatment system (anaerobism, anoxia, aerobic) and ecological treatment system etc..
But the high nitrogen and phosphorus load due to domestic sewage in rural areas and the feature such as water quality is unstable, directly carry out processing often
The problems such as cause the removal effect of the poor processing effect of domestic sewage in rural areas, nitrogen phosphorus good, harmless treatment rate is low.
Content of the invention
It is an object of the invention to provide the ecological network system of a kind of rural domestic sewage collection and process is it is intended to solve
Domestic sewage in rural areas does not form the network system and focuses on, and existing wastewater treatment efficiency is poor, the removal effect of nitrogen phosphorus
Not good, the low problem of harmless treatment rate.
The ecological network system of rural domestic sewage collection provided in an embodiment of the present invention and process, described life in the countryside is dirty
The ecological network system of water Collecting and dealing includes methane-generating pit, ecological swag, the node of artificial swamp composition；Pipeline and ecological ditch
What canal formed connects the tie of each node：
Methane-generating pit：Sanitary sewage for peasant household dissipates row is incorporated in methane-generating pit by pipeline connection, is tentatively sunk
Shallow lake is processed；
Ecological swag：It is connected with methane-generating pit by pipeline, for Domestic sewage collecting and temporarily storing, and by plantation
Flos Nelumbinises wetland plant carries out the preliminary pretreatment of sewage；
Pipeline：The PVC pipeline being 5 centimetres～15 centimetres by internal diameter for the sanitary sewage that peasant household dissipates row, is transported to
Methane-generating pit and ecological swag；
Artificial swamp：It is connected with ecological canal, artificial swamp, as the terminal of whole system, the sanitary sewage of collection is entered
Row purified treatment.
Ecological canal：It is connected with ecological swag, by plantation Bermuda grass inside and outside ecological canal, Hemarthria compressa is perennial water-fast
And well developed root system plant is further processed to sewage；
And the connection hinge as ecological swag, artificial swamp, by the ecology of whole rural domestic sewage collection and process
The network system is together in series；
Further, described ecology swag includes the low swag of physical features, and in the low swag of described physical features, plantation Flos Nelumbinises wetland is planted
Thing carries out the preliminary pretreatment of sewage.
Further, described ecological canal includes trunk ecological canal and some secondary ecological canals, secondary ecological canal connection
Logical ecology swag and trunk ecological canal, trunk ecological canal UNICOM artificial swamp.
Further, described artificial swamp utilizes soil, artificial dielectric, plant, the physics of microorganism, chemistry, biology triple
Synergism, is processed to sewage；Processing mode include absorption, delay, filtration, oxidoreduction, precipitation, microbial decomposition,
Conversion, plant masking, the effect of residue accumulated, water transpiration and Nutrient Absorption and all kinds of animal.
Further, the pipeline that described secondary ecological canal also discharges sanitary sewage with peasant household is connected.
Further, sanitary sewage includes kitchen waste water, wash water, sanitary wastewater；Described wash water includes bath water
And laundry water；Kitchen waste water and wash water flow into ecological swag through pipeline and keep in and pretreatment；Sanitary wastewater flows into through pipeline
Methane-generating pit is kept in and pretreatment.
Rural domestic sewage collection and the ecological network system of process that the present invention provides, the life entering artificial swamp is dirty
Water after pretreatment, can reach the requirement that agriculture is poured water substantially；Constructed wetland plant may be selected Caulis et Folium Ipomoeae aquaticae, Oryza sativa L., Rhizoma Nelumbiniss etc. have through
Ji is worth and the stronger plant of dirt-removing power；Therefore, the present invention has extremely strong operability and promotional value.The present invention runs
Low cost, is also embodied in the industrial crops such as Caulis et Folium Ipomoeae aquaticae, Oryza sativa L., Rhizoma Nelumbiniss and can bring certain economic worth；Due to having planted warp
Ji crop, so that being utilized of sewage, decreases the use of chemical fertilizer, embodies its economic benefit and ecological benefits
Compared with prior art, have the advantage that：
(1) maintenance management is easy, and service inventory is few, the simple treatment technology of daily management.
(2) operating cost is cheap, using ecological or anaerobic treatment method, accomplishes the minimum of sewage disposal energy consumption, whole body
System is built with depth displacement, there is not dynamical system.
(3) technological process is simple, using large number of ecological swag and methane-generating pit, sanitary sewage is carried out temporary and pre-
Process, sanitary sewage is collected and pretreatment using ecological canal, using artificial swamp, sanitary sewage is finally located
Reason.
(4) there is extremely strong operability, when ecological swag, ecological canal build, how to be drained off floodwaters using locally existing
System and Wan Tang, are transformed to it and just be can reach requirement, and in Plant choosing, more options fit raw eciophyte.
(5) certain economic worth can be produced, when artificial swamp builds, more options Oryza sativa L., Caulis et Folium Ipomoeae aquaticae, Rhizoma Nelumbiniss etc. are economical to be made
Thing, can produce economy return.
The ecological network system of rural domestic sewage collection of the present invention and process is built with depth displacement, there is not dynamical system
System, suitable mountain villages.Whole network system, according to its function, can be divided into two big parts：Methane-generating pit, ecological swag,
Artificial swamp, is the main node of the network system；Pipeline and ecological canal, are the ties connecting each node.Sanitary sewage
Process final rely on artificial swamp, wherein methane-generating pit, ecological swag, ecological canal can be by major pollutants in sanitary sewage
(COD、NH3- N, TN, TP) concentration reduction.In whole system, what sanitary sewage can be carried out with pretreatment has methane-generating pit, ecology
Swag, ecological canal, the wastewater influent pollutional load alleviating sewage disposal terminal (artificial swamp) of its pretreatment, life is dirty
Water is through above three parts, major pollutants (COD, NH in sanitary sewage3- N, TP and TN) average removal rate exist respectively
24.8%th, 18.7%, 14.5% and 17.83% about.
Brief description
Fig. 1 is the ecological network architecture signal of rural domestic sewage collection provided in an embodiment of the present invention and process
Figure.
Fig. 2 is ecology swag structural representation provided in an embodiment of the present invention.
Fig. 3 is secondary ecological canal structural representation provided in an embodiment of the present invention.
Fig. 4 is trunk ecological canal structural representation provided in an embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to
Limit the present invention.
Below in conjunction with the accompanying drawings the application principle of the present invention is explained in detail.
As shown in figure 1, the ecological network system of rural domestic sewage collection provided in an embodiment of the present invention and process includes：
Methane-generating pit：Sanitary sewage for peasant household dissipates row is incorporated in methane-generating pit by pipeline connection, is tentatively sunk
Shallow lake is processed；
Ecological swag：It is connected with methane-generating pit by pipeline, for Domestic sewage collecting and temporarily storing, and by plantation
Flos Nelumbinises wetland plant carries out the preliminary pretreatment of sewage；
Artificial swamp：It is connected with ecological canal, artificial swamp, will be dirty for the basin collected life used as the terminal of whole system
Water carries out purified treatment.
Pipeline：The PVC pipeline being 5 centimetres～15 centimetres by internal diameter for the sanitary sewage that peasant household dissipates row, is transported to
Methane-generating pit and ecological swag；
Ecological canal：It is connected with ecological swag, by plantation Bermuda grass inside and outside ecological canal, Hemarthria compressa is perennial water-fast
And well developed root system plant is further processed to sewage；
And as pipeline, methane-generating pit, ecological swag, artificial swamp connection hinge, by whole rural domestic sewage collection
And the ecological network system processing is together in series；
Further, described ecology swag includes the low swag of physical features, and in the low swag of described physical features, plantation Flos Nelumbinises wetland is planted
Thing carries out the preliminary pretreatment of sewage.
Further, described ecological canal includes trunk ecological canal and some secondary ecological canals, secondary ecological canal connection
Logical ecology swag and trunk ecological canal, trunk ecological canal UNICOM artificial swamp.
Further, described artificial swamp utilizes soil, artificial dielectric, plant, the physics of microorganism, chemistry, biology triple
Synergism, to sewage, is processed；Processing mode include absorption, delay, filtration, oxidoreduction, precipitation, microbial decomposition,
Conversion, plant masking, the effect of residue accumulated, water transpiration and Nutrient Absorption and all kinds of animal.
Further, the pipeline that described secondary ecological canal also discharges sanitary sewage with peasant household is connected.
Further, sanitary sewage includes kitchen waste water, wash water, sanitary wastewater；Described wash water includes bath water
And laundry water；Kitchen waste water and wash water flow into ecological swag through pipeline and keep in and pretreatment；Sanitary wastewater flows into through pipeline
Methane-generating pit is kept in and pretreatment.
With reference to specific embodiment, the application principle of the present invention is further described.
Embodiment 1：
Dragon King's Watershed domestic sewage in rural areas distribution distribution in random dispersion, basin domestic sewage in rural areas is mainly derived from kitchen
Room sewage, washing sewage and sanitary wastewater, wherein lavatory water (toilet-flushing sewage and water for bathing) and part kitchen waste water are all collected
To the methane-generating pit of peasant household, laundry and part kitchen waste water substantially then dissipate row in the form of freely discharging, basic investigating above
On, carry out in combination with to the topography and geomorphology in Dragon King's Watershed rural area, geology characteristic, weather, emission request and economic level etc.
Investigation, the final collection proposing to optimize country sewage by building " the rural ecological network system " is processed.
" the rural ecological network system " is made up of pipeline, methane-generating pit, irrigation canals and ditches, ecological swag and 5 main bodys of artificial swamp, leads to
Cross, to peasant household's configuration sewage collecting pipeline of living scattered, sewage collecting is carried out to the sanitary sewage that resident produces.Wherein Heisui River part is passed through
After methane-generating pit is processed, supernatant is discharged by pipeline, enters irrigation canals and ditches or swag by pipeline together with buck, eventually through irrigation canals and ditches
Enter artificial swamp ecological treatment system.
Each effect constituting main body：
(1) pipeline：Single peasant household is dissipated kitchen and the laundrywastes of row, by artificial constructed pipeline, by the sewage of scattered row
Collect.
(2) methane-generating pit：The lavatory water of peasant household and wash water are connected by pipeline and is incorporated in methane-generating pit, carry out preliminary
Precipitation process.
(3) ecological swag：The sanitary sewage collected by pipeline, continue through pipeline or irrigation canals and ditches drain into nearby
In the relatively low swag of gesture, in swag, the wetland plant such as plantation Flos Nelumbinises carries out the preliminary pretreatment of sewage, can be as external water source, such as
Shown in Fig. 2；Deep 1.5 meters of swag, water plant planting is in swag.
(4) secondary ecological canal：As the connection hinge of other 4 composition main bodys, by the whole rural ecological network system
It is together in series, as shown in Figure 3；Secondary ecological canal is 45 ° with the angle on ground；Herbaceous plant is planted in the table of ecological canal
Face, trunk ecological canal is away from ground 10cm.
(5) trunk ecological canal：As the terminal of whole system, the basin sanitary sewage of collection is carried out purified treatment,
As shown in Figure 4.Herbaceous plant is planted on artificial swamp, the long 30cm in ecological swag bottom of artificial swamp, apart from ground 20cm,
Angle with ground is 45 °.
After optimization, the collection of Dragon King's Watershed rural area is processed
(1) landscape effect
After the basin rural ecological network system is tentatively built up, the living environment of basin urban residents has improvement, dissipates in the past
Arrange the little sewage ditch causing to significantly reduce, dig the ecological swag built and irrigation canals and ditches have beautified the landscape in rural area.
(2) clean effect
Select the ecological swag built well, the sanitary sewage of collection is continuously monitored, river basin ecological network body
Ecological swag in system to COD in sanitary sewage, ammonia nitrogen, TP and TN average removal rate respectively 24.8%, 18.7%,
14.5% and 17.83% about.There is reasonable effect to the purifying domestic sewage in whole basin.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (6)
1. the ecological network system of a kind of rural domestic sewage collection and process is it is characterised in that described domestic sewage in rural areas is received
What collection and the ecological network system processing can carry out pretreatment to sanitary sewage has methane-generating pit, ecological swag, trunk and secondary
Ecological filter ditch, by pretreatment, each pollutant levels of sanitary sewage reduce, and reach agriculture and pour water requirement；
The ecological network system of described rural domestic sewage collection and process includes methane-generating pit, ecological swag, artificial swamp composition
Node；The tie of each node of connection of pipeline and ecological canal composition：
Methane-generating pit：Sanitary sewage for peasant household dissipates row is incorporated in methane-generating pit by pipeline connection, carries out at preliminary sedimentation
Reason；
Ecological swag：It is connected with methane-generating pit by pipeline, for Domestic sewage collecting and temporarily storing, and by planting Flos Nelumbinises
Wetland plant carries out the preliminary pretreatment of sewage；
Artificial swamp：It is connected with ecological canal, artificial swamp, as the terminal of whole system, the sanitary sewage of collection is carried out only
Change is processed；Build the plant of artificial swamp, select Caulis et Folium Ipomoeae aquaticae, Oryza sativa L., Rhizoma Nelumbiniss；
Pipeline：The PVC pipeline being 5 centimetres～15 centimetres by internal diameter for the sanitary sewage that peasant household dissipates row, is transported to biogas
Pond and ecological swag；
Ecological canal：It is connected with ecological swag, by plantation Bermuda grass inside and outside ecological canal, Hemarthria compressa is perennial water-fast and root
The flourishing plant of system is further processed to sewage；
And the connection hinge as ecological swag, artificial swamp, by the ecological network of whole rural domestic sewage collection and process
System is together in series.
2. the ecological network system of rural domestic sewage collection as claimed in claim 1 and process is it is characterised in that described life
State swag includes the low swag of physical features, and in the low swag of described physical features, plantation Flos Nelumbinises wetland plant carries out tentatively locating in advance of sewage
Reason.
3. the ecological network system of rural domestic sewage collection as claimed in claim 1 and process is it is characterised in that described life
State irrigation canals and ditches include trunk ecological canal and some secondary ecological canals, secondary ecological canal UNICOM ecology swag and trunk ecology ditch
Canal, trunk ecological canal UNICOM artificial swamp.
4. the ecological network system of rural domestic sewage collection as claimed in claim 1 and process is it is characterised in that described people
Work wetland utilization soil, artificial dielectric, plant, the physics of microorganism, chemistry, biological triple synergism, at sewage
Reason；Processing mode includes absorption, delay, filtration, oxidoreduction, precipitation, microbial decomposition, conversion, plant is covered, residue amasss
Tired, water transpiration and the effect of Nutrient Absorption and all kinds of animal.
5. the ecological network system of rural domestic sewage collection as claimed in claim 3 and process is it is characterised in that described time
The pipeline that level ecological canal also discharges sanitary sewage with peasant household is connected.
6. the ecological network system of rural domestic sewage collection as claimed in claim 1 and process is it is characterised in that life is dirty
Water includes kitchen waste water, wash water, sanitary wastewater；Described wash water includes bath water and laundry water；Kitchen waste water and washing
Wash sewage to keep in and pretreatment through the ecological swag of pipeline inflow；Sanitary wastewater flows into methane-generating pit through pipeline and keeps in and pretreatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610986805.7A CN106396275A (en) | 2016-11-09 | 2016-11-09 | Rural area domestic sewage collection and treatment ecological network system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610986805.7A CN106396275A (en) | 2016-11-09 | 2016-11-09 | Rural area domestic sewage collection and treatment ecological network system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106396275A true CN106396275A (en) | 2017-02-15 |
Family
ID=59229823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610986805.7A Pending CN106396275A (en) | 2016-11-09 | 2016-11-09 | Rural area domestic sewage collection and treatment ecological network system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106396275A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231705A (en) * | 2018-10-30 | 2019-01-18 | 河海大学 | A kind of sewage disposal system |
| CN111470621A (en) * | 2020-04-14 | 2020-07-31 | 安徽三链生态环保有限公司 | Rural domestic sewage treatment process in typical flat country |
| CN113550389A (en) * | 2021-07-01 | 2021-10-26 | 张仁学 | Original ecological treatment method for urban domestic sewage |
| CN113582491A (en) * | 2021-08-02 | 2021-11-02 | 上海市城市建设设计研究总院（集团）有限公司 | Village and town sewage whole-process recycling treatment method based on classification treatment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860489A (en) * | 2015-06-10 | 2015-08-26 | 新乡市蓝海环境工程有限公司 | Powerless biological sewage treatment system |
-
2016
- 2016-11-09 CN CN201610986805.7A patent/CN106396275A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860489A (en) * | 2015-06-10 | 2015-08-26 | 新乡市蓝海环境工程有限公司 | Powerless biological sewage treatment system |
Non-Patent Citations (1)
| Title |
|---|
| 李忠国等: "《辽河保护区治理与保护理论》", 31 May 2013, 中国环境科学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231705A (en) * | 2018-10-30 | 2019-01-18 | 河海大学 | A kind of sewage disposal system |
| CN111470621A (en) * | 2020-04-14 | 2020-07-31 | 安徽三链生态环保有限公司 | Rural domestic sewage treatment process in typical flat country |
| CN113550389A (en) * | 2021-07-01 | 2021-10-26 | 张仁学 | Original ecological treatment method for urban domestic sewage |
| CN113582491A (en) * | 2021-08-02 | 2021-11-02 | 上海市城市建设设计研究总院（集团）有限公司 | Village and town sewage whole-process recycling treatment method based on classification treatment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100398465C (en) | Composite artificial marshland water quality clarification system in north low-temperature area | |
| CN101353271B (en) | Manure diversity type toilet, and innocent treatment and reclaiming system | |
| CN101973637A (en) | River channel purification system for processing rural domestic sewage | |
| CN106396275A (en) | Rural area domestic sewage collection and treatment ecological network system | |
| CN107055805A (en) | A kind of control agricultural non-point source pollution and the ditch pool integrated system and its application method of purifying river water | |
| CN101544447A (en) | Technique for purifying organic sewage through bio-precipitation and purification method | |
| CN107555713A (en) | Cleaning system and method for Drain contamination for river channel risk point | |
| CN203419813U (en) | Comprehensive treatment system of rural environment | |
| CN105601043B (en) | A kind of domestic sewage of villages and small towns ecology microkinetic processing system | |
| CN101880113A (en) | Decentralized, quality separated and centralized integrated treatment mode for domestic sewage of peasants in mountainous and hilly areas | |
| CN204509035U (en) | Complex media marsh sewage treatment system | |
| CN103641282B (en) | Method for performing surface slow-rate infiltration land treatment on rural domestic wastewater | |
| CN203440156U (en) | Grey water treatment device using matrix-reinforced composite-flow constructed wetland for residence community | |
| CN210825835U (en) | Unpowered sewage treatment system | |
| CN108203214A (en) | Rural Plane Source Pollution administering method | |
| CN206799269U (en) | A kind of ecological ditch pool system for preventing and treating pollution of area source | |
| CN109790054A (en) | A kind of Process on Intensive Dairy Cattle Farm breeding wastewater drip irrigation system and operation management method | |
| CN105110474B (en) | A kind of landscape type village sewage is collected and processing system | |
| CN212741063U (en) | Dispersed farmer sewage treatment device without breeding wastewater | |
| CN209974545U (en) | Farmland irrigation drainage purification treatment circulation system | |
| CN206467112U (en) | Ecology microkinetic livestock and poultry waste water control integrated apparatus | |
| CN204848568U (en) | Family is with ecological processing apparatus of type sewage | |
| CN205472939U (en) | Sponge city construction's rain flood processing, clean system | |
| CN205472959U (en) | Utilize rural domestic sewage's ecological wetland facility in succession | |
| CN104652385A (en) | Self-irrigating self-draining ecological type irrigated area system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20170215 |