CN204874036U - Compound three -dimensional constructed wetland system of cellular -type - Google Patents
Compound three -dimensional constructed wetland system of cellular -type Download PDFInfo
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- CN204874036U CN204874036U CN201520649404.3U CN201520649404U CN204874036U CN 204874036 U CN204874036 U CN 204874036U CN 201520649404 U CN201520649404 U CN 201520649404U CN 204874036 U CN204874036 U CN 204874036U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The utility model provides a compound three -dimensional constructed wetland system of cellular -type, this system including the wetland bed body that has the water proof function with build this wetland bed body inner space stablize surface low pond and undercurrent pond, the surface low pond of stabilizing plant and to have the water purification plant, should stabilize the surface low pond and still be provided with water installations, it connects through middle collection water distribution device to stabilize surface low pond and undercurrent pond, the undercurrent pond is equipped with water purification eduction gear. Wetland bed body inner space level be equipped with a baffle, this baffle will space separation become upper and lower two parts, top is as stablizing the surface low pond, the part is as the undercurrent pond down, stabilize surface low pond and undercurrent pond has filled respectively and has stabilized surface low pond matrix and undercurrent pond matrix, make it to form respectively to stabilize surface low wetland and undercurrent wetland. The utility model has the advantages of area is little, and it is good to go out water quality of water.
Description
Technical field
The utility model belongs to technical field of sewage, is specifically related to a kind of cellular-type composite stereo artificial wet land system.
Background technology
In China's town development process, municipal sewage system, by after the sewage collecting within the scope of appointment blowdown, is transported to sewage work by municipal sewage pipe network and focuses on.But, also relatively lag behind at comparatively remote regional developments such as China rural areas, the process of the sanitary sewage in these places at present is not solved preferably, but the sanitary sewage in these places all will be collected sewage work, will spend high sewer line construction cost.Meanwhile, society is faced with the problem of shortage of water resources, and the recycle and reuse of sewage will inevitably become the emphasis of sewage disposal technology concern.The process that sewage is carried in pipe network can cause the seepage of sewage, and raw sewerage leaks in physical environment, not only causes pollution to environment, is also totally unfavorable to the recycling of water resources and the Sustainable development of water resources.So sewage is carried out treatment in situ and reuse, it is the sewage disposal pattern actively advocated at present.
Stabilization pond is a kind of natural low cost sewage treatmentmethod, it utilizes the acting in conjunction of bacterium and algae to complete the object of purifying water body, there is the features such as investment working cost is little, running maintenance is simple, but also there are some unavoidable drawbacks, as large in floor space, stink of by the impact of season and environment is large, fugitive and grows mosquito etc., detrimentally affect is caused to surrounding environment.
The features such as subsurface wastewater infiltration system is a kind of land treatment system of arteface, and it utilizes the interaction between microorganism and plant, by approach degradation of contaminant such as chemical physics, has investment cost little, and effluent quality is good.But subsurface wastewater infiltration system also has indeterminable problem, as large in floor space, safeguard improper polluted underground water body etc.
Artificial swamp is by the ecosystem manually built, the features such as have treatment effect good, investment cost is little, and technical matters is simple.It utilizes plant in system, the interaction such as microorganism and matrix, is issued to the object of purifying water body in the triple role of biological-chemical-physics.Artificial swamp has given full play to the potentiality of each integral part in system, avoids the secondary pollution causing sewage, reaches the double benefit of environment and economy.But the shortcomings such as floor space is large, influent load is little, easy blocking, the cycle of operation is short, treatment effect is unstable that artificial swamp also has, are easily subject to the impact in temperature and season simultaneously.
Utility model content
For prior art above shortcomings, the purpose of this utility model be to provide a kind of floor space little, not easily silting cellular-type composite stereo artificial wet land system, effectively can solve low, the subsurface wastewater infiltration system of organic loading that stabilization pond exists may the problem of polluted underground water body, also solves that artificial swamp floor space is large, the problem of easily blocking, the cycle of operation short and fluctuation of service.Reach artificial swamp floor space little, the effect that effluent quality is good.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of cellular-type composite stereo artificial wet land system, comprise the wetland bed body with water proof function and the stable surface low pond and the undercurrent pond that are built in this wetland bed body internal space, described stable surface low pond kind is implanted with water purification plant, and this stable surface low pond is also provided with water feed apparatus, for introducing sewage; Described stable surface low pond is connected by middle collection water-distributing device with undercurrent pond; Undercurrent pond is provided with water purification discharger, for being discharged by the water purification after process, it is characterized in that, described wetland bed body internal space level is provided with a dividing plate, described separated by spaces is become upper and lower two portions by this dividing plate, and upper part is as stable surface low pond, and lower part is as undercurrent pond; Described stable surface low pond and undercurrent pond are filled with stable surface low pond matrix and undercurrent pond matrix respectively, wherein, stablize surface low pond matrix be used for the root system of fixing described water purification plant and adhere to aerobic, facultative microbe, stable surface low pond is made to form stable surface-flow, undercurrent pond matrix, for adhering to anoxic, anaerobion and denitrifying bacterium, makes undercurrent pond form current wetland.
Further, be provided with some pieces in described stable surface low pond and be parallel to each other and the traverse baffle vertical with water inlet direction, one end of this traverse baffle is connected with the pool wall in stable surface low pond, has a space between the other end and corresponding pool wall, forms flow channels; Adjacent two traverse baffles are connected with the pool wall of not homonymy respectively, the flow channels position that adjacent two traverse baffles are formed is contrary, thus make the baffling district formed between several flow channels and traverse baffles jointly form snake type water route, sewage can be made along the space Tortuous flow that traverse baffle is formed to extend sewage by path and the residence time.
Further, described water feed apparatus is made up of with the water distributor be communicated with it water inlet pipe, described water distributor offers several water distributing pores, sewage can be introduced stable surface-flow equably.
Further, in the middle of described, collection water-distributing device comprises surface low header and sewage conveying tube, described surface low header is arranged on one end relative with water distributor, stable surface low pond, this surface low header has several for collecting the gully-hole of the sewage through stable surface-flow process, the level attitude of this gully-hole is lower than the position of the water distributing pore that described water distributor is offered; Described surface low header is communicated with undercurrent pond by sewage conveying tube.
Further, described sewage conveying tube has an intake, the sewage conveying tube above this intake is also provided with variable valve, described intake is also provided with the seal valve can closing intake.
Further, described water purification discharger is the water purification header of the bottom being arranged on undercurrent pond, this water purification header has some water purification and collects mouth, for collecting the water purification after current wetland process; Water purification through wetland bed body, and can be discharged by the pure water inlet offered thereon by one end of described water purification header; Described pure water inlet is provided with power-driven pump, water purification or tap water oppositely can be pumped into undercurrent pond.
Further, described stable surface low pond matrix and undercurrent pond matrix are one in rubble, quartz sand, flyash, blast furnace slag, pebbles or any two or more combination.
Further, described water purification plant is one in reed, Scirpus tabernaemontani, cattail or any two or more combination.
Further, described stable surface low pond matrix and undercurrent pond matrix are rubble, and the ratio of its filling thickness is 1:2.
Compared with prior art, the utility model has following beneficial effect:
1, the utility model is as a kind of sewage disposal of practicality and high efficiency and reutilization technology, organic loading is high, water outlet SS is low, floor space reduces greatly, solve Traditional Man wetland floor space large, the subproblems such as mud blocking, extend the cycle of operation of artificial swamp, improve artificial swamp removal efficiency.
2, the utility model structure is simple, and investment cost is little, and treatment effect is good, and process energy consumption is low, and it is convenient to run, and can beautify the environment, be a kind of sewage disposal technology of high efficiency, low cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is schematic top plan view of the present utility model;
Fig. 3 is schematic side view of the present utility model.
In accompanying drawing: 1-water distributor; 2-traverse baffle; 3-water purification plant; 4-surface low header; 5-intake; 6-sewage conveying tube; 7-water purification header; 8-pure water inlet; 9-undercurrent pond matrix; 10-dividing plate; 11-stablize surface low pond matrix; 12-gully-hole; 13-water distributing pore.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.
one, a kind of cellular-type composite stereo artificial wet land systemas Figure 1-3, comprise the wetland bed body with water proof function and the stable surface low pond and the undercurrent pond that are built in this wetland bed body internal space, described stable surface low pond kind is implanted with water purification plant 3, this stable surface low pond is also provided with water feed apparatus, for introducing sewage; Described stable surface low pond is connected by middle collection water-distributing device with undercurrent pond; Undercurrent pond is provided with water purification discharger, for being discharged by the water purification after process, it is characterized in that, described wetland bed body internal space level is provided with a dividing plate 10, described separated by spaces is become upper and lower two portions by this dividing plate 10, and upper part is as stable surface low pond, and lower part is as undercurrent pond; Described stable surface low pond and undercurrent pond are filled with stable surface low pond matrix 11 and undercurrent pond matrix 9 respectively, wherein, stablize surface low pond matrix 11 for fixing the root system of described water purification plant and adhering to aerobic, facultative microbe, stable surface low pond is made to form stable surface-flow, undercurrent pond matrix 9, for adhering to anoxic, anaerobion and denitrifying bacterium, makes undercurrent pond form current wetland.
As shown in Figure 2, as one preferred embodiment, be provided with some pieces in described stable surface low pond to be parallel to each other and the traverse baffle 2 vertical with water inlet direction, one end of this traverse baffle 2 is connected with the pool wall in stable surface low pond, there is a space between the other end and corresponding pool wall, form flow channels; Adjacent two traverse baffles 2 are connected with the pool wall of not homonymy respectively, the flow channels position that adjacent two traverse baffles 2 are formed is contrary, thus make the baffling district formed between several flow channels and traverse baffles jointly form snake type water route, sewage can be made along the space Tortuous flow that traverse baffle 2 is formed to extend sewage by path and the residence time.
As one preferred embodiment, described water feed apparatus is made up of with the water distributor 1 be communicated with it water inlet pipe, described water distributor 1 offers several water distributing pores 13, sewage can be introduced stable surface-flow equably.
As one preferred embodiment, in the middle of described, collection water-distributing device comprises surface low header 4 and sewage conveying tube 6, described surface low header 4 is arranged on one end relative with water distributor, stable surface low pond, this surface low header 4 has several for collecting the gully-hole 12 of the sewage through stable surface-flow process, the level attitude of this gully-hole 12 is lower than the position of the water distributing pore 13 that described water distributor 1 is offered; Described surface low header 4 is communicated with undercurrent pond by sewage conveying tube 6.
As one preferred embodiment, described sewage conveying tube 6 has an intake 5, the sewage conveying tube 6 above this intake 5 is also provided with variable valve, and described intake is also provided with the seal valve can closing intake.
The set-up mode of middle collection water-distributing device intake 5 is conveniently sample the sewage after stable surface-flow process on the one hand, on the other hand, the time that sewage stops at stable surface-flow then can be adjusted by the aperture adjusting variable valve, the length of this time directly affects pollutant load and the composition of sewage after stable surface-flow process, by its adjustment is realized controlled to sewage, process efficiently.
As one preferred embodiment, described water purification discharger is the water purification header 7 of the bottom being arranged on undercurrent pond, this water purification header 7 has some water purification and collects mouth, for collecting the water purification after current wetland process; Water purification through wetland bed body, and can be discharged by the pure water inlet 8 offered thereon by one end of described water purification header.
Wherein, described pure water inlet is provided with power-driven pump, water purification or tap water oppositely can be pumped into undercurrent pond.After cellular-type composite stereo artificial wet land system runs for some time, when needing to clean this system, then by power-driven pump, tap water or water purification are pumped into undercurrent pond, silting thing in the stromal surface of undercurrent pond and between matrix space can rinse out by the current pumped into, and is discharged by intake 5; After intake 5 is closed, the current through undercurrent pond are sent in surface low pond by the pressure energy utilizing pump to provide, and extend the cycle of operation of system and reduce situation about blocking.
As one preferred embodiment, different as the case may be, described stable surface low pond matrix 11 and undercurrent pond matrix 9 can have multiple choices, can be the one in rubble, quartz sand, flyash, blast furnace slag, pebbles or any two or more combination.Consider from easy construction and the angle of saving material, stablize surface low pond matrix 11 and undercurrent pond matrix 9 can be rubble, the ratio of its filling thickness is 1:2.The hole that usual undercurrent pond matrix 9 is formed is greater than stable surface low pond matrix 11, can effectively prevent undercurrent pond from blocking like this.
As one preferred embodiment, different as the case may be, described water purification plant 3 is one in reed, Scirpus tabernaemontani, cattail or any two or more combination.
The utility model adopts the cellular-type composite stereo artificial swamp VHCW (VerticalHybridConstructedWetland reducing floor space, be abbreviated as VHCW), described current wetland and surface-flow are rock structure, are built on a body.Arrange a dividing plate in cellular-type composite stereo artificial swamp and cellular-type composite stereo artificial swamp is divided into upper and lower two portions, top is divided into surface low pond, and bottom is divided into undercurrent pond, lays different substrates according to function difference.The surface-flow of upper part adopts deflector type to stablize surface-flow, and at Mei Ji baffling district planting plants, current wetland does not plant any plant.Cellular-type composite stereo artificial swamp pond adopts enterprising water-out manners under water to dispose of sewage, and the deflector type of upper part stablizes surface-flow can proper extension hydraulic detention time.By dividing plate, organically current wetland and surface-flow are combined, form a composite stereo artificial swamp, will greatly reduce the floor space of wetland.The deflector type of upper part is stablized surface-flow and will be improved adhesion amount and the most of suspended solid of precipitation of microorganism simultaneously, will reduce the stopping state of current wetland, extends the working time of cellular-type composite stereo artificial swamp and improve effluent quality, reducing costs.It is oppositely clean that cellular-type composite stereo artificial swamp pond can adopt lower water inlet upper water-out mode to realize, thus extend the cycle of operation of system and reduce the situation of blocking.
Imported by pretreated sewage and stablize surface-flow, make sewage along the flowing of snake type water route, the suspended solid in sewage is stablized surface low pond matrix and water purification plant is retained down; The microorganism of load on described stable surface low pond matrix and water purification root system of plant by there is anaerobic reaction, the DeR that occurs of hold concurrently oxygen and aerobic reaction, plant degradation reaction and the microbial film that formed between root system of plant and stable surface low pond matrix removes organism, nitrogen and phosphorus in sewage; Regulate the sewage quantity through stablizing the process of surface low treatment wetland being transported to current wetland, with realize to sewage the adjustment of the stable surface-flow residence time and to the sewage entering current wetland in the adjustment of pollutant load, in the anaerobism and anaerobic environment in undercurrent pond, in the stromal surface of undercurrent pond, the anoxic of load and the microorganism of anaerobism are by anaerobic respiration effect organics removal; Denitrifying bacterium in undercurrent pond by denitrification by nitrogen degradation; Undercurrent pond matrix is adsorbed and the phosphorus precipitated in sewage and suspended solid; Water purification is arranged outward.
Phosphorus is mainly removed process and is occurred in root system of plant in surface low pond and absorb and the absorption of matrix in undercurrent pond.After sewage passes through to stablize surface-flow and current wetland, pollutent is removed preferably, stable effluent quality.
two, embodiment
Build a cellular-type composite stereo artificial wet land system, the global design of described cellular-type composite stereo artificial swamp is cuboid-type, and its size is: long 4m, wide 2m, dark 2m.
The bed body of this cellular-type composite stereo artificial wet land system is the brick mix structure adopting WATER REPELLENT, space level is provided with a dividing plate 10 therein, and this dividing plate 10 is brick mix structure, and described separated by spaces is become upper and lower two portions, upper part is as stable surface low pond, and lower part is as undercurrent pond; Described stable surface low pond and undercurrent pond are filled with rubble respectively as stable surface low pond matrix 11 and undercurrent pond matrix 9, and its filling thickness is respectively 50cm and 100cm.Described stable surface low pond kind is implanted with reed as water purification plant 3, the broadside in this stable surface low pond is respectively arranged with water distributor 1 and surface low header 4, water distributor 1 and surface low header 4 offer water distributing pore 13 and gully-hole 12 respectively, and the level attitude of gully-hole 12 is lower than the position of water distributing pore 13; Described surface low header 4 is communicated with undercurrent pond by sewage conveying tube 6; Described sewage conveying tube 6 has an intake 5, the sewage conveying tube 6 above this intake 5 is also provided with variable valve, described intake 5 is also provided with the seal valve can closing intake 5; Water purification header 7 is installed bottom undercurrent pond, this water purification header 7 has some water purification and collect mouth, for collecting the water purification after current wetland process; Water purification through wetland bed body, and can be discharged by the pure water inlet 8 offered thereon by one end of described water purification header.
Wherein, stablize in surface low pond be provided with 5 pieces be parallel to each other and with the vertical traverse baffle 2 in water inlet direction, one end of this traverse baffle 2 is connected with a long limit in stable surface low pond, leaves space between another long limit in the other end and stable surface low pond, forms flow channels; Adjacent two traverse baffles 2 are connected from different long limits respectively, the flow channels position that adjacent two traverse baffles 2 are formed is contrary, thus the baffling district making 5 to be formed between flow channels and traverse baffle forms snake type water route jointly, sewage can be made along the space Tortuous flow that traverse baffle 2 is formed to extend sewage by path and the residence time.
This cellular-type composite stereo artificial swamp can be disposed of sewage in the enterprising operation of water-out manners under water, and lower water inlet upper water-out mode can be adopted to realize oppositely cleaning to extend the cycle of operation of system and reduce the situation of blocking.In sewage treatment process, effluent stream enters into stable surface-flow through water distributor 1, stable surface-flow can increase hydraulic detention time, most of suspended solid is allowed to precipitate, allow current fully contact with water purification plant 3 with stable surface low matrix 11 simultaneously, stablize organism, nitrogen and phosphorus that surface low matrix 11 can fully be degraded in current with the microorganism on water purification plant 3 root system on the surface.Sewage through stablizing surface low pond flows into current wetland by transport pipe 6.Current wetland does not plant any plant, be mainly the condition of anoxic and anaerobism, current wetland matrix 9 on the surface load the microorganism of a large amount of anoxic and anaerobism, partial organic substances can be removed by anaerobic respiration, simultaneously denitrifying bacterium is under the environment of anoxic and anaerobism, activity is comparatively strong, can remove most of the nitrogen.Phosphorus can be got off by matrix 9 adsorption precipitation simultaneously.Water after current wetland process collects eliminating by header 7.
Be 0.26-0.36m at hydraulic load
3/ (m
2/ d) (amount that every square metre of wetland is disposed of sewage every day) time, the average removal rate of cellular-type composite stereo artificial swamp to COD, N and NH3-N in sewage and P is respectively: 75.15%, 57.08%, 60.06% and 66.08%.
Above-described embodiment of the present utility model is only for the utility model example is described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, other multi-form change and variations can also be made on the basis of the above description.Here cannot give exhaustive to all embodiments.Every belong to the technical solution of the utility model the apparent change of amplifying out or variation be still in the row of protection domain of the present utility model.
Claims (9)
1. a cellular-type composite stereo artificial wet land system, comprise the wetland bed body with water proof function and the stable surface low pond and the undercurrent pond that are built in this wetland bed body internal space, described stable surface low pond kind is implanted with water purification plant, this stable surface low pond is also provided with water feed apparatus, for introducing sewage; Described stable surface low pond is connected by middle collection water-distributing device with undercurrent pond; Undercurrent pond is provided with water purification discharger, for being discharged by the water purification after process, it is characterized in that,
Described wetland bed body internal space level is provided with a dividing plate, and described separated by spaces is become upper and lower two portions by this dividing plate, and upper part is as stable surface low pond, and lower part is as undercurrent pond; Described stable surface low pond and undercurrent pond are filled with stable surface low pond matrix and undercurrent pond matrix respectively, wherein, stablize surface low pond matrix be used for the root system of fixing described water purification plant and adhere to aerobic, facultative microbe, stable surface low pond is made to form stable surface-flow, undercurrent pond matrix, for adhering to anoxic, anaerobion and denitrifying bacterium, makes undercurrent pond form current wetland.
2. cellular-type composite stereo artificial wet land system according to claim 1, it is characterized in that, be provided with some pieces in described stable surface low pond to be parallel to each other and the traverse baffle vertical with water inlet direction, one end of this traverse baffle is connected with the pool wall in stable surface low pond, there is a space between the other end and corresponding pool wall, form flow channels; Adjacent two traverse baffles are connected with the pool wall of not homonymy respectively, the flow channels position that adjacent two traverse baffles are formed is contrary, thus make the baffling district formed between several flow channels and traverse baffles jointly form snake type water route, sewage can be made along the space Tortuous flow that traverse baffle is formed to extend sewage by path and the residence time.
3. cellular-type composite stereo artificial wet land system according to claim 1, it is characterized in that, described water feed apparatus is made up of with the water distributor be communicated with it water inlet pipe, described water distributor offers several water distributing pores, sewage can be introduced stable surface-flow equably.
4. cellular-type composite stereo artificial wet land system according to claim 1, it is characterized in that, in the middle of described, collection water-distributing device comprises surface low header and sewage conveying tube, described surface low header is arranged on one end relative with water distributor, stable surface low pond, this surface low header has several for collecting the gully-hole of the sewage through stable surface-flow process, the level attitude of this gully-hole is lower than the position of the water distributing pore that described water distributor is offered; Described surface low header is communicated with undercurrent pond by sewage conveying tube.
5. cellular-type composite stereo artificial wet land system according to claim 4, it is characterized in that, described sewage conveying tube has an intake, the sewage conveying tube above this intake is also provided with variable valve, described intake is also provided with the seal valve can closing intake.
6. cellular-type composite stereo artificial wet land system according to claim 1, it is characterized in that, described water purification discharger is the water purification header of the bottom being arranged on undercurrent pond, this water purification header has some water purification and collects mouth, for collecting the water purification after current wetland process; Water purification through wetland bed body, and can be discharged by the pure water inlet offered thereon by one end of described water purification header; Described pure water inlet is provided with power-driven pump, water purification or tap water oppositely can be pumped into undercurrent pond.
7. cellular-type composite stereo artificial wet land system according to claim 1, is characterized in that, described stable surface low pond matrix and undercurrent pond matrix are one in rubble, quartz sand, flyash, blast furnace slag, pebbles or any two or more combination.
8. cellular-type composite stereo artificial wet land system according to claim 1, is characterized in that, described water purification plant is one in reed, Scirpus tabernaemontani, cattail or any two or more combination.
9. cellular-type composite stereo artificial wet land system according to claim 7, is characterized in that, described stable surface low pond matrix and undercurrent pond matrix are rubble, and the ratio of its filling thickness is 1:2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520649404.3U CN204874036U (en) | 2015-08-26 | 2015-08-26 | Compound three -dimensional constructed wetland system of cellular -type |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520649404.3U CN204874036U (en) | 2015-08-26 | 2015-08-26 | Compound three -dimensional constructed wetland system of cellular -type |
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| CN201520649404.3U Expired - Fee Related CN204874036U (en) | 2015-08-26 | 2015-08-26 | Compound three -dimensional constructed wetland system of cellular -type |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174468A (en) * | 2015-08-26 | 2015-12-23 | 四川理工学院 | Separation type combined stereo constructed wetland system and sewage processing method |
| CN111115836A (en) * | 2020-02-07 | 2020-05-08 | 山东师范大学 | Multistage anoxic-anaerobic-aerobic integrated composite artificial wetland |
-
2015
- 2015-08-26 CN CN201520649404.3U patent/CN204874036U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174468A (en) * | 2015-08-26 | 2015-12-23 | 四川理工学院 | Separation type combined stereo constructed wetland system and sewage processing method |
| CN105174468B (en) * | 2015-08-26 | 2018-04-06 | 四川理工学院 | A kind of cellular-type composite stereo artificial wet land system and sewage water treatment method |
| CN111115836A (en) * | 2020-02-07 | 2020-05-08 | 山东师范大学 | Multistage anoxic-anaerobic-aerobic integrated composite artificial wetland |
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Granted publication date: 20151216 Termination date: 20190826 |