CN103195157B - System and method for runoff in-situ processing in early days of urban rainfall - Google Patents
System and method for runoff in-situ processing in early days of urban rainfall Download PDFInfo
- Publication number
- CN103195157B CN103195157B CN201310121300.0A CN201310121300A CN103195157B CN 103195157 B CN103195157 B CN 103195157B CN 201310121300 A CN201310121300 A CN 201310121300A CN 103195157 B CN103195157 B CN 103195157B
- Authority
- CN
- China
- Prior art keywords
- gulf
- precipitation
- pond
- runoff
- landscape pond
- 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.)
- Expired - Fee Related
Links
Abstract
The invention discloses a system and a method for runoff in-situ processing in early days of urban rainfall. The system for the runoff in-situ processing in the early days of the urban rainfall comprises a pond causeway, a sediment bay, a landscape pool and a water distribution system which are sequentially connected, wherein the pond causeway surrounds the sediment bay to be arranged on the periphery and connected with the sediment bay through a water outlet pipe; the sediment bay surrounds the landscape pool to be arranged and connected with the landscape pool through the water outlet pipe; the water distribution system is arranged in the landscape pool; the heights of bottoms of the pond causeway, the sediment bay, the water distribution system and the landscape pool sequentially decline; and bottoms of the pond causeway and the sediment bay are higher than the water level of the landscape pool. The system aims at characteristics that runoff carries multiple pollutants and pollution loads are high in the early days of the urban rainfall to perform a design, so that a rain flood peak is avoided and the recycling of rain water is achieved. The method using the system to achieve the runoff in-situ processing in the early days of the urban rainfall is a new method for the runoff in-situ processing in the early days of the urban rainfall and has the advantages of being simple and easy to achieve, effectively reducing or avoiding early rain water pollution to receiving waters and achieving good scheduling in a drainage area.
Description
Technical field
The invention belongs to urban rainfall runoff processing technology field, particularly a kind of Urban Rain Initial Runoff in-situ treatment system and method.
Technical background
That urban rainfall runoff non-point pollution refers to the dissolving that soil activity produces or solid pollutant, under the drip washing and souring of rainfall runoff, imports receiving water body and the water pollution that causes from unspecific place by runoff process.Urban storm runoff contains a large amount of pollutants, and the pollution load that Initial Runoff produces, far above city domestic sewage, has become one of major issue of Urban Water Environment pollution.
Modes for Urban Stormwater Runoff Pollution controls generally to be divided into Sources controlling and end-o f-pipe-control two kinds of modes, and wherein, Sources controlling is suitable for the control to receiving water body non-point source pollution load total amount; End-o f-pipe-control is then collected after pipe network end focuses on runoff pollution runoff and is discharged into receiving water body.Current domestic surface flow Sources controlling control techniques mainly comprises rainwater delaying basin and rainfall regulative pool, rapid infiltration system etc., and another ecological micro-polluted raw treatment process has then only carried out laboratory simulation research and do not had sizable application.
Rainwater delaying basin is seasonal water-filling, and SEA LEVEL VARIATION is large, and within 1 year, often the dry pool of experience and replacing of the wet pool change; Have plenty of and have water all the year round, some water plants are planted in delaying basin, utilize the ecosystem of zooplankter and microorganism composition in water plant and the pool to carry out degraded digestion to the pollutant in runoff rainwater, improve the water quality of retaining, effectively can improve the ecological environment of surrounding simultaneously.Rainfall regulative pool is widely used runoff control measure, can evade rainwater flood peak, realizes recycling of rainwater, and early-stage rainwater can be avoided again the pollution of receiving waters, can also play positive role to drainage scheduling.
Above-mentioned processing method is widely used, but still there is some problems and defect, lower like rain the treatment effeciency in hydropexis pond, and purification cycle is long, also may grow mosquitos and flies, there is potential sanitation of environment problem; Although storm detention tank treatment effeciency is higher, need higher capital cost, another operation maintenance also also exists the problem needing special messenger to be responsible for, and there is certain difficulty in practice.
Summary of the invention
For overcoming the shortcoming of above-mentioned prior art existence with not enough, primary and foremost purpose of the present invention is to provide a kind of Urban Rain Initial Runoff in-situ treatment system.
Another object of the present invention is to provide the method using said system to realize Urban Rain Initial Runoff in-situ treatment.This processing method is the new city rainfall Initial Runoff in-situ treatment method utilizing the characteristic Design such as southern area is rainy, many waters surface, rainwater flood peak can be evaded, realize recycling of rainwater, can alleviate or avoid again early-stage rainwater to the pollution of receiving water body, realize the favourable scheduling of drainage.
Object of the present invention is achieved through the following technical solutions: a kind of Urban Rain Initial Runoff in-situ treatment system, comprise connect successively the ridge, the pool, precipitation gulf, landscape pond and water distribution system; The ridge, the pool is built in outermost around precipitation gulf, is connected with precipitation gulf by outlet pipe; Precipitation gulf, around landscape pond construction, is connected with landscape pond by outlet pipe; Water distribution system is arranged in landscape pond; The height at the end of the ridge, the described pool, precipitation gulf, water distribution system and landscape pond declines successively, and the end in the ridge, the described pool and precipitation gulf is higher than the water surface of landscape pond;
The ridge, the described pool adopts following methods to build: the groove wide along precipitation edge, gulf excavation 0.5 ~ 1m, 0.3m is dark, is filled in filter material in groove, obtains the ridge, the pool; The function on the ridge, the pool is suspended solids, the pollutant such as organic matter and particulate form nitrogen, phosphorus in obstruction initial stage surface flow;
Described filter material is preferably at least one in cinder, zeolite and haydite; Filter material has the function purified water, for purifying water;
Described precipitation gulf adopts following methods to build: the groove wide along landscape pond edge excavation 0.3 ~ 0.6m, the degree of depth is no more than 1m, is precipitated gulf; Early-stage rainwater penetrates into precipitation gulf by outlet pipe after the purification of the ridge, the pool, and precipitation gulf can be filtered rainwater and extend the rainwater holdup time, plays the effect of safety belt;
The volume in described precipitation gulf is preferably 15 ~ 20% of landscape pond;
The ridge, the described pool is no more than 12% with the gradient in precipitation gulf;
Described water distribution system is connected to form by float valve and gutter, and one end of gutter is connected to region sewer, and the other end is connected with float valve; Take the form control water level of float valve, controlled the unlatching of pipeline valve by SEA LEVEL VARIATION with closed; Time at ordinary times as landscape pond, float valve is closed, and when rainwater along with initial stage surface flow constantly imports, float valve is opened, and water former in pond is constantly discharged vacate pond appearance and stores initial stage surface flow;
Described gutter is preferably L-type gutter;
Described landscape pond is preferably formed by landscape pond construction original in community; Landscape pond beautifies the environment in affiliated area as water scenery at ordinary times, until when there is rainfall, float valve in water distribution system opens valve with the rising of water level, Chi Shui is discharged, Chi Shui is discharged by the water distribution system in pond, hold receiving early-stage rainwater to vacate pond, pond appearance calculates by the initial stage flow path surface in affiliated area, and the general rainfall 5min of pressing calculates initial stage surface flow (GB50014-2006);
Preferably, the Chi Di for intercepting is provided with between described precipitation gulf and landscape pond;
Preferably, plantation landscape plant in described landscape pond;
Described landscape plant is preferably at least one in calamus (Acorus calamus Linn), canna (Canna generalis Bailey), cyperus alternifolius (Cyperus alternifolius), Scirpus tabernaemontani (Scirpus tabernaemontani), papyrus (Cyperus papyrus), Arundo donax (Arundo donax var.versicolor) and iris (Iris tectorum);
Preferably, cultivation of ornamental fish in described landscape pond;
Described ornamental fish are preferably bright and beautiful carp (Cyprinus carpio);
Described Urban Rain Initial Runoff in-situ treatment system is preferably reconstructed by landscape pond original in community and is formed; In community, original landscape pond is made up of profundal zone, phytal zone and water front, first suitable transformation is carried out to the water front of landscape pond, according to the water quality situation of monitoring early-stage rainwater and the area of water yield setting water front, the filter material such as haydite, gravel, cinder are filled after being excavated by water front, and plant wetland plant above to increase landscape effect, be the ridge, the pool; If desired, when water front area is larger, need, by PVC board, water front is separated into 10 ~ 30m
2to ensure the even of water distribution; Then excavate out precipitation gulf in phytal zone, building Chi Di, arranges water distribution system, is landscape pond in profundal zone;
Use said system to realize the method for Urban Rain Initial Runoff in-situ treatment, comprise the following steps:
Initial stage surface flow is through the ridge, the pool, and the suspended solids in initial stage surface flow, organic matter, particulate form nitrogen and phosphor contaminant matter are stopped by the filter material of filling, obtain early-stage rainwater; Early-stage rainwater enters precipitation gulf by outlet pipe, imports landscape pond after of short duration stagnation; Along with the continuous remittance of early-stage rainwater, in landscape pond, the float valve of water distribution system is opened, and is discharged by former Chi Shui, water former in pond is constantly discharged vacate pond appearance and stores early-stage rainwater;
Compared to the prior art, tool has the following advantages and gives prominence to effect in the present invention:
Urban Rain Initial Runoff in-situ treatment system of the present invention, is the hybrid system combined together by the technological merits such as traditional rainwater delaying basin, artificial swamp system, has the function that early-stage rainwater is regulated and stored and purified.The water front that this system can make full use of original landscape pond is built, and just can reach flood peak clipping, avoid initial stage surface flow to the pollution of storage water body, belong to the system of a kind of city non-point source in-situ immobilization and maintenance without the need to too many engineering measure; Between rain free period, can be used as landscape pond and beautify region environment after utilizing the tail water of Wastewater Treatment Plant to carry out supplementing.Said system is used to realize the method for Urban Rain Initial Runoff in-situ treatment, it is a kind of new city rainfall Initial Runoff in-situ treatment method, rainwater flood peak can be evaded, realize recycling of rainwater, can alleviate or avoid again early-stage rainwater to the pollution of receiving water body, realize the favourable scheduling of drainage.
Accompanying drawing explanation
Fig. 1 is longitudinal tangent plane schematic diagram of the Urban Rain Initial Runoff in-situ treatment system of embodiment 1; Wherein 1-surface flow, 2-pool stalk, 3-precipitate gulf, 4-float valve, 5-outlet pipe, 6-landscape pond, 7-gutter.
Fig. 2 is the horizontal tangent plane schematic diagram of the Urban Rain Initial Runoff in-situ treatment system of embodiment 1; Wherein 1-surface flow, 2-pool stalk, 3-precipitate gulf, 4-water distribution system, 5-outlet pipe, 6-landscape pond, 7-gutter.
Specific implementation method
Below in conjunction with embodiment and accompanying drawing, the present invention is more specifically described, but embodiments of the present invention are not limited thereto.
Embodiment 1
As shown in Figure 1, a kind of Urban Rain Initial Runoff in-situ treatment system, comprise connect successively the ridge, the pool 2, precipitation gulf 3, landscape pond 6 and water distribution system; The ridge, the pool 2 is built in outermost around precipitation gulf 3, is connected with precipitation gulf 3 by outlet pipe 5; Precipitation gulf 3 is built around landscape pond 6, is connected with landscape pond by outlet pipe; Water distribution system is arranged in landscape pond 6; The height at the end of the ridge, the pool 2, precipitation gulf 3, water distribution system and landscape pond 6 declines successively, and the end in the ridge, the pool 2 and precipitation gulf 3 is higher than the water surface of landscape pond 6;
The ridge, the pool 2 adopts following methods construction:, groove that 0.3m dark wide along precipitation edge, gulf 2 excavation 0.5 ~ 1m, by cinder, zeolite and haydite in mass ratio 1:2:1 be filled in groove, obtain the ridge, the pool;
Precipitation gulf 3 adopts following methods construction: the groove wide along landscape pond 6 edge excavation 0.3 ~ 0.6m, the degree of depth is no more than 1m, is precipitated gulf;
The volume in precipitation gulf 3 is 20% of landscape pond 6;
The ridge, the pool 2 is 8% with the gradient in precipitation gulf 3;
Landscape pond 6 is formed by landscape pond construction original in community; Landscape pond beautifies the environment in affiliated area as water scenery at ordinary times, until when there is rainfall, float valve in water distribution system opens valve with the rising of water level, Chi Shui is discharged, Chi Shui is discharged by the water distribution system in pond, hold receiving early-stage rainwater to vacate pond, pond appearance calculates by the initial stage flow path surface in affiliated area, and the general rainfall 15mm of pressing calculates initial stage surface flow (GB50014-2006);
Water distribution system is connected to form by float valve 4 and gutter 7, and one end of gutter 7 is connected to region sewer, and the other end is connected with float valve 4; Take the form control water level of float valve, controlled the unlatching of pipeline valve by SEA LEVEL VARIATION with closed; Time at ordinary times as landscape pond, float valve is closed, and when rainwater along with initial stage surface flow constantly imports, float valve is opened, and water former in pond is constantly discharged vacate pond appearance and stores initial stage surface flow;
Gutter 7 is L-type gutter;
The Chi Di for intercepting is provided with between precipitation gulf 3 and landscape pond 6;
Plantation calamus (Acorus calamus Linn), canna (Canna generalis Bailey), cyperus alternifolius (Cyperus alternifolius), Scirpus tabernaemontani (Scirpus tabernaemontani), papyrus (Cyperus papyrus), Arundo donax (Arundo donax var.versicolor) and iris (Iris tectorum) in landscape pond 6, planting density is 3-9 strain/m
2;
The bright and beautiful carp of cultivation (Cyprinus carpio) in landscape pond 6;
Initial stage surface flow is through the ridge, the pool, and the suspended solids in initial stage surface flow, organic matter, particulate form nitrogen and phosphor contaminant matter are stopped by the filter material of filling, obtain early-stage rainwater; Early-stage rainwater enters precipitation gulf by outlet pipe, imports landscape pond after of short duration stagnation; Along with the continuous remittance of early-stage rainwater, in landscape pond, the float valve of water distribution system is opened, and is discharged by former Chi Shui, water former in pond is constantly discharged vacate pond appearance and stores early-stage rainwater.
Embodiment 2
Certain Environmental Research Center courtyard area is about 600m
2, have a landscape pond in institute, water surface area is about 20m
2, mean depth 0.6m, is divided into profundal zone, phytal zone, water front along natural gentle slope, and landscape pond beautifies center environment as the landscape effect of this Environmental Research Center at ordinary times, during rainfall, is controlled by water distribution system, realizes regulating and storing of initial stage surface flow;
For cutting down the pollutant in initial stage surface flow, according to the Urban Rain Initial Runoff in-situ treatment system construction of embodiment 1, transform as by this landscape pond and have early-stage rainwater and to regulate and store the landscape pond of purification function, its volume calculates according to rainfall depth formula;
First, utilize water front to build base, be excavated to water surface superelevation 0.2m place downwards from water front outer rim, excavation is transported outward, and domatic compacting, is divided into 10 lattice along landscape pond outer rim orientation average, and separation built by laying bricks or stones by the thick 120mm of compartment, high 600mm brick wall, cell liner 350g/m
2geomembrane after, insert the mixed fillers of haydite, cinder, zeolite and handstone, the average thick 400mm of filler; With De50 steel-plastics composite pipe as cell outlet pipe, outlet pipe installs movable elbow to control the water yield, for avoiding short stream, establishes twice baffle plate diversion in cell; In each cell of water front, plantation cyperus alternifolius, calamus, canna, mullet grass and iris, obtain the ridge, the pool;
Then, excavate out precipitation gulf in phytal zone, building Chi Di; Profundal zone plantation Scirpus tabernaemontani, water lily, obtain landscape pond; Finally, water distribution system is set in profundal zone, obtains Urban Rain Initial Runoff in-situ treatment system;
For reaching the object of early-stage rainwater of regulating and storing, gutter is set in landscape pond; Controlled by float valve, after early-stage rainwater imports landscape pond, ball float rises gutter valve open with water level, former Chi Shui is discharged, vacates pond appearance and store initial stage surface flow, when water level decreasing, ball float, by gutter valve closing, stores surface flow with this, evades flood peak;
This transformed landscape pond is since in December, 2009 is run, and Be very effective, in certain rainfall, initial stage surface flow sampling shows: COD
cr348mg/L(GB/T11914-1989), SS596mg/L(GB/T11901-1989); After the interception and absorption of water front filler, get precipitation gulf water sample detection and obtain COD
cr112mg/L, SS133mg/L; Enter landscape pond after the of short duration precipitation in precipitation gulf after, COD
cr93mg/L, SS103mg/L, i.e. COD
crclearance reaches 72.7%, SS clearance and reaches 82.7%; Pool inner water body is limpid, and transparency reaches more than 0.5m, cuts down the pollution load of initial rainfall runoff preferably.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (8)
1. a Urban Rain Initial Runoff in-situ treatment system, it is characterized in that comprising connect successively the ridge, the pool, precipitation gulf, landscape pond and water distribution system; The ridge, the pool is built in outermost around precipitation gulf, is connected with precipitation gulf by outlet pipe; Precipitation gulf, around landscape pond construction, is connected with landscape pond by outlet pipe; Water distribution system is arranged in landscape pond; The height at the end of the ridge, the described pool, precipitation gulf, water distribution system and landscape pond declines successively, and the end in the ridge, the described pool and precipitation gulf is higher than the water surface of landscape pond;
Described water distribution system is connected to form by float valve and gutter, and one end of gutter is connected to region sewer, and the other end is connected with float valve;
The ridge, the described pool is no more than 12% with the gradient in precipitation gulf.
2. Urban Rain Initial Runoff in-situ treatment system according to claim 1, it is characterized in that: the ridge, the described pool adopts following methods to build: the groove wide along precipitation edge, gulf excavation 0.5 ~ 1m, 0.3m is dark, filter material is filled in groove, obtains the ridge, the pool.
3. Urban Rain Initial Runoff in-situ treatment system according to claim 2, is characterized in that: described filter material is at least one in cinder, zeolite and haydite.
4. Urban Rain Initial Runoff in-situ treatment system according to claim 1, is characterized in that: described precipitation gulf adopts following methods to build: the groove wide along landscape pond edge excavation 0.3 ~ 0.6m, the degree of depth is no more than 1m, is precipitated gulf.
5. Urban Rain Initial Runoff in-situ treatment system according to claim 1, is characterized in that: the volume in described precipitation gulf is 15 ~ 20% of landscape pond.
6. Urban Rain Initial Runoff in-situ treatment system according to claim 1, is characterized in that: be provided with the Chi Di for intercepting between described precipitation gulf and landscape pond.
7. Urban Rain Initial Runoff in-situ treatment system according to claim 1, is characterized in that: plantation landscape plant and cultivation of ornamental fish in described landscape pond.
8. use the described Urban Rain Initial Runoff in-situ treatment system of one of claim 1 ~ 7 to realize the method for Urban Rain Initial Runoff in-situ treatment, it is characterized in that comprising the following steps:
Initial stage surface flow is through the ridge, the pool, and the suspended solids in initial stage surface flow, organic matter, particulate form nitrogen and phosphor contaminant matter are stopped by the filter material of filling, obtain early-stage rainwater; Early-stage rainwater enters precipitation gulf by outlet pipe, imports landscape pond after stagnation; Along with the continuous remittance of early-stage rainwater, in landscape pond, the float valve of water distribution system is opened, and is discharged by former Chi Shui, water former in pond is constantly discharged vacate pond appearance and stores early-stage rainwater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310121300.0A CN103195157B (en) | 2013-04-09 | 2013-04-09 | System and method for runoff in-situ processing in early days of urban rainfall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310121300.0A CN103195157B (en) | 2013-04-09 | 2013-04-09 | System and method for runoff in-situ processing in early days of urban rainfall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103195157A CN103195157A (en) | 2013-07-10 |
| CN103195157B true CN103195157B (en) | 2014-12-24 |
Family
ID=48717960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310121300.0A Expired - Fee Related CN103195157B (en) | 2013-04-09 | 2013-04-09 | System and method for runoff in-situ processing in early days of urban rainfall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103195157B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105461075B (en) * | 2016-01-06 | 2019-02-05 | 中国环境科学研究院 | A kind of urban runoff pollution of area source advanced treating and reuse technology |
| CN109492870A (en) * | 2018-09-30 | 2019-03-19 | 昆山市建设工程质量检测中心 | Biological delaying basin performance check-up target calculation method based on measured value |
| CN110195463A (en) * | 2019-05-16 | 2019-09-03 | 苏州市清泽环境技术有限公司 | A kind of the sponge urban rainwater processing system and method for Control the Plan Pollution Sources |
| CN112851017B (en) * | 2020-12-25 | 2022-07-29 | 北京北华中清环境工程技术有限公司 | Multifunctional initial rainwater treatment ecological pond system and method |
| CN114014444A (en) * | 2022-01-05 | 2022-02-08 | 南大（常熟）研究院有限公司 | Construction method of high-ecological-elasticity small-micro wetland ecosystem |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19803509A1 (en) * | 1998-01-30 | 1999-08-05 | Heinz Hapke | Mobile solar collector and water treatment plant linked to subsurface storage |
| CN1736893A (en) * | 2005-08-23 | 2006-02-22 | 中国科学院生态环境研究中心 | A kind of landscape lawn rainwater and effluent overland flow treatment system |
| CN101070208A (en) * | 2007-07-13 | 2007-11-14 | 北京市水利科学研究所 | Composite surface-flow land wetting system |
| CN201560596U (en) * | 2009-10-13 | 2010-08-25 | 北京土人景观与建筑规划设计研究院 | Landscape reservoir |
| CN102418426A (en) * | 2011-08-23 | 2012-04-18 | 哈尔滨工业大学 | Double-layer undercurrent artificial wetland landscape pond and method thereof for recovering and treating urban roof rainwater |
-
2013
- 2013-04-09 CN CN201310121300.0A patent/CN103195157B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19803509A1 (en) * | 1998-01-30 | 1999-08-05 | Heinz Hapke | Mobile solar collector and water treatment plant linked to subsurface storage |
| CN1736893A (en) * | 2005-08-23 | 2006-02-22 | 中国科学院生态环境研究中心 | A kind of landscape lawn rainwater and effluent overland flow treatment system |
| CN101070208A (en) * | 2007-07-13 | 2007-11-14 | 北京市水利科学研究所 | Composite surface-flow land wetting system |
| CN201560596U (en) * | 2009-10-13 | 2010-08-25 | 北京土人景观与建筑规划设计研究院 | Landscape reservoir |
| CN102418426A (en) * | 2011-08-23 | 2012-04-18 | 哈尔滨工业大学 | Double-layer undercurrent artificial wetland landscape pond and method thereof for recovering and treating urban roof rainwater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103195157A (en) | 2013-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104947781B (en) | The system of regulating and storing on a kind of rainwater-collecting shunting, self-restraint stratum | |
| CN102351376B (en) | Riverbank multiple pond wetland waste sewage treatment method and device | |
| CN103132485B (en) | External water interception and purification type urban river multi-element ecological embankment physical structural system | |
| CN103306360B (en) | Multidimensional ecological drainage system for intercepting and controlling separate system rainwater pollutants into river | |
| CN105089302B (en) | A kind of Rain Garden system for the shunting of community's rainwater, peak clipping and ecological purification | |
| CN203531109U (en) | Separate and multi-dimensional ecological drainage system used for interception and control of rainwater runoff pollutants into river | |
| CN103088897A (en) | Green community impact resistance rainwater ecological utilization system | |
| CN103195157B (en) | System and method for runoff in-situ processing in early days of urban rainfall | |
| CN104358302A (en) | Treatment method for initial rainwater of separate system | |
| CN103193362A (en) | Natural returning system, treatment method and application of drained water | |
| CN207348137U (en) | A kind of rainwater purification structure for sponge urban construction | |
| CN103351080A (en) | Purification method for rural domestic sewage and stepped sewage percolation purification system | |
| CN112158958B (en) | Artificial rainwater wetland system for sponge city construction for removing pollutants in strengthening manner | |
| CN103938518A (en) | Method for constructing road runoff pollution control greening system | |
| CN104129888A (en) | Building community underlying surface rainwater runoff treatment system | |
| CN110820913A (en) | Rainwater comprehensive treatment system | |
| CN102603072A (en) | Rainwater resource utilization system of composite type medium and rainwater ecological purifying method of system | |
| CN205662803U (en) | Structure is used multipurposely to ground rainwater | |
| CN203095806U (en) | Multifunctional rainwater collecting, treating and recycling device | |
| CN108328744B (en) | Three-stage ecological pond for treating farmland non-point source pollution based on sponge ecological system | |
| CN207499048U (en) | A kind of rainwater-collecting cleaning system | |
| CN104563266A (en) | Rural domestic sewage high-ridge rice field irrigation regulation control system and construction method thereof | |
| CN204001467U (en) | A kind of Rainwater Resources is utilized system | |
| CN211285935U (en) | Rainwater comprehensive treatment system | |
| CN1580415A (en) | Composite wet land artesian polluted river water purifying method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 |