CN1736893A - A kind of landscape lawn rainwater and effluent overland flow treatment system - Google Patents
A kind of landscape lawn rainwater and effluent overland flow treatment system Download PDFInfo
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- CN1736893A CN1736893A CNA2005100932666A CN200510093266A CN1736893A CN 1736893 A CN1736893 A CN 1736893A CN A2005100932666 A CNA2005100932666 A CN A2005100932666A CN 200510093266 A CN200510093266 A CN 200510093266A CN 1736893 A CN1736893 A CN 1736893A
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- rain sewage
- landscape
- overland flow
- flow
- overland
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
Abstract
A kind of overland flow percolation treatment system that can be used for having the rain sewage disposal and the reuse in view demand place.It is to adopt following six sub-systems: rain sewage runoff gathering system, receive the moisture flow system, pretreatment system, water distribution system, overland flow landscape green space, water gathering system.And adopt water distribution at interval, and make the soil alternation of wetting and drying, better remove water pollutant with the redox potential that changes, can not only utilize low clay of perviousness or sandy loam that sewage is purified, can also build the greenery patches, carry out beautification of landscape.
Description
Technical field:
A kind of rain sewage cross flow percolation treatment system specifically, is a kind of rain sewage cross flow percolation treatment reclamation set of landscape, is applicable to that there be the rain sewage disposal and the reuse in view demand place in cities and towns and tourist district etc.
Background technology:
Traditional two stage biological is handled, and can't solve because a large amount of toxic organics pollution problems that the organic chemistry industrial boom brings can not solve the body eutrophication problem that P, N cause.Though tertiary treatment can be used for addressing these problems, construction investment is big, energy consumption is high, the working cost costliness, and complex management also may cause secondary pollution sometimes.
It is to utilize the ecosystem of soil-microorganism-plant composition to make the treatment process of pollutants in sewage purification under artificial regulatory that polluted water land is handled.When pollutent was purified, nutritive substance in the water and moisture also were able to recycle.
Therefore, the U.S. (PL95-217) proposed preferentially to adopt to reform/substitute the technical finesse municipal effluent at " water cleaning method " in 1977, the soil treatment technology as one reform/technology of substituting applied.China all classified the soil treatment technology as the environmental protection key scientific and technological projects and studies in country's " six or five " and the enforcement period of the seventh five-year plan." about the some regulations of China's water prevention and cure of pollution technical policy " that China Environment Protection Committee under the State Council issued in 1986 are classified the polluted water land processing and utilizing as an important technology policy of China and are carried out and implemented.Yet traditional land treatment system is had relatively high expectations to infiltrating property of soil, and pollutent accumulation saturation problem is outstanding, and does not consider the view demand of disposal field.
Summary of the invention:
In order to overcome traditional land treatment system to soil infiltrating property requirement height, and do not consider the deficiency of disposal field view demand, and at cities and towns, the scattered little point source of tourist district (sewage), the associated treatment principle that pollute in face source (rainwater), the invention provides a kind of landscape lawn type overland flow treatment system, it is a kind of treatment technology between surface-flow and soil processing.Adopt water distribution at interval, make the soil alternation of wetting and drying, better remove water pollutant with the redox potential that changes.
The technical solution adopted for the present invention to solve the technical problems is to adopt following six sub-systems: 1. rain sewage runoff gathering system, 2. receive the moisture flow system, 3. pretreatment system, 4. water distribution system, 5. overland flow landscape green space, 6. water gathering system; Rain/sewage is handled from the source to remittance ground, and carried out beautification of landscape with suiting measures to local conditions.
By transforming or building blow-off line, improve rain sewage runoff gathering system, rain sewage is collected to gather, and is convenient to focus on.Part flow arrangement is set, if rainfall is excessive or rain time is long, then the later stage runoff has not needed to handle, can directly discharge.Pretreatment system is made up of grid and settling tank.Settling tank can be taked suitable shape because of landform neatly and arrange, and considers the beautification of landscape processing.Water distribution system comprises pump and water distribution pipe two portions, and its effect is with the sewage domatic top of cross flow of batching equably, does not produce short circuit and channel.Determine overland flow landscape green space area according to rain/sewage output and the cloth water yield, water distribution intensity.It is 2% to 8% that the overland flow landscape green space has certain ground inclination, and rain/sewage by water distribution system cross flow uniformly on the ground, flows to the braiding channel that is located at toe on the top, slope.In epidemiological process a small amount of waste water by the plant picked-up, to evaporate and ooze the people underground.Grass planting or other crops perch and prevent soil loss for microorganism on the ground, but reuse or discharging water body after tail water is collected.On the basis that keeps original grass, suitably reseed other high-quality grass seeds, the main herbaceous plant of considering that selection has efficient utilization ratio to N, P, make up mixed lawn, in 1 year, the dormancy time of different sorts grass can stagger mutually, keeps one or two kind of careless well-grown simultaneously, keeps the normal operation of cross flow system.The overland flow treat effluent is collected by braiding channel, and imports water outlet collection well with reuse.
The present invention can not only utilize low clay of perviousness or sandy loam that sewage is purified, and can also build the greenery patches, carries out beautification of landscape.
Description of drawings: invention is specified below in conjunction with drawings and Examples.
Fig. 1: settling tank structural representation.
Fig. 2: water distribution system synoptic diagram.
Fig. 3: overland flow landscape green space orthographic plan.
Among the figure, 1. rain sewage collecting closed conduit, 2. drain cover, 3. grid, 4. settling tank, 5. cross flow meadow, 6. ventilating pit, 7. settling tank lid, 8. water distribution pipe, 9. water distributing pore, 10. inverted filter, 11. braiding channels, 12. flowers fences,
Embodiment:
Among Fig. 1, drain cover (2) spacing that runoff is collected closed conduit (1) is little, in case people and animals are absorbed in.Grid (3) is taked the simple construction form, be mainly used in block every with remove in the animal colony house that transmits with runoff large size solids such as feed; Grid (3) size is collected closed conduit (1) section with runoff and is cooperated, and does not establish the chamber in addition.Settling tank (4) not only plays the precipitation cleaning action, the storage effect of also having held concurrently, and sewage will emit bad smell because of the storage time is long, influences surrounding resident.For this reason, possess ventilating pit (vision slit) (6) on the settling tank lid (7) among the embodiment, not only can internal same oxygen, can also prevent to a certain extent that stink from distributing.Settling tank (4) significant depth 2.5m, area 48m
2, maximum storage time is 2d.Owing to be underground structure, except that locating, ventilating pit (6) all carries out earthing, green grass on settling tank lid (7) top.
Among Fig. 2, water distributor (8) is chosen the PVC pipe of Φ=8cm, the about 60m of pipe range, open water distributing pore (9), pitch-row 0.5m arranges along north side, cross flow greenery patches (5), 10cm lays gravel inverted filter (10) before the pipe, prevents that water impact from causing domatic top to be corroded, and blocks the cross flow approach.It is 5m that embodiment chooses flow
3The submersible sewage pump of/h, work 12 hours every days, day water lift 60m
3
Among Fig. 3, cross flow meadow (5) area: 1200m
2The lawn shape: approximate rectangle is about 60m, wide about 20m; The domatic structure gradient in lawn: 2%.Keep former grass, suitably reseeded Festuca Arundinacea, rye grass, alfalfa, bromegrass, Haidian Bermuda grass etc., make up mixed lawn.Water distribution pipe (8) and inverted filter (10) are arranged on north side, cross flow meadow (5), and braiding channel (11) is arranged on the low southern side, cross flow meadow (5) of physical features.Plant flowers fence (12) around the cross flow meadow, both beautified view, prevent that again the visitor from entering trample, protection cross flow meadow is not subjected to artificial destruction.Effluent stream to: from north to south; Day is handled the water yield: 60m
3/ d; Hydraulic load: 5cm/d; Sewage speed: the 0.08-0.10m that batches
3/ (hm); Sewage is batched the time: 12h/d; The frequency of batching: according to rain day.Braiding channel (11) catchments and is introduced into a water outlet collection well, in order to reuse.
Claims (9)
1. a landscape lawn type rain sewage overland flow percolation treatment system can be used for the rain sewage disposal and the reuse in view place.Its principal character is made up of following six parts: rain sewage runoff gathering system, receive the moisture flow system, pretreatment system, water distribution system, overland flow landscape green space, water gathering system.
2. landscape lawn type rain sewage overland flow percolation treatment according to claim 1 system is characterized in that rain sewage runoff gathering system takes the closed conduit form, and lay the gravel bed at the bottom of canal.
3. landscape lawn type rain sewage overland flow percolation treatment according to claim 1 system, it is characterized in that receiving the moisture flow system is that part flow arrangement is set before settling tank.
4. landscape lawn type rain sewage overland flow percolation treatment according to claim 1 system is characterized in that pretreatment system is made up of grid and settling tank.
5. pretreatment system according to claim 4 is characterized in that grid takes the simple construction form, and grid size is collected the closed conduit section with runoff and cooperated, and does not establish the chamber in addition.
6. pretreatment system according to claim 4 is characterized in that settling tank can be neatly take suitable shape because of landform and arrange: underground type or semi-underground type structure; And covering shop soil in the pond, plantation flowers and plants or other view are seen landscaping treatment.
7. landscape lawn type rain sewage overland flow percolation treatment according to claim 1 system is characterized in that water distribution system comprises pump and water distribution pipe two portions.
8. landscape lawn type rain sewage overland flow percolation treatment according to claim 1 system, the greenery patches ground inclination that it is characterized in that the overland flow system is 2% to 8%, and makes up mixed lawn.
9. landscape lawn type rain sewage overland flow percolation treatment according to claim 1 system is characterized in that being provided with a water outlet and collects well, and the diafiltration water outlet imports water outlet earlier by braiding channel and collects well, in order to reuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100932666A CN1736893A (en) | 2005-08-23 | 2005-08-23 | A kind of landscape lawn rainwater and effluent overland flow treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100932666A CN1736893A (en) | 2005-08-23 | 2005-08-23 | A kind of landscape lawn rainwater and effluent overland flow treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1736893A true CN1736893A (en) | 2006-02-22 |
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ID=36079883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100932666A Pending CN1736893A (en) | 2005-08-23 | 2005-08-23 | A kind of landscape lawn rainwater and effluent overland flow treatment system |
Country Status (1)
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| CN (1) | CN1736893A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195157A (en) * | 2013-04-09 | 2013-07-10 | 环境保护部华南环境科学研究所 | System and method for runoff in-situ processing in early days of urban rainfall |
| CN103940979A (en) * | 2014-04-18 | 2014-07-23 | 扬州大学 | Analog system for treating road surface runoff pollution at ecological permeable side slope |
-
2005
- 2005-08-23 CN CNA2005100932666A patent/CN1736893A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195157A (en) * | 2013-04-09 | 2013-07-10 | 环境保护部华南环境科学研究所 | System and method for runoff in-situ processing in early days of urban rainfall |
| CN103195157B (en) * | 2013-04-09 | 2014-12-24 | 环境保护部华南环境科学研究所 | System and method for runoff in-situ processing in early days of urban rainfall |
| CN103940979A (en) * | 2014-04-18 | 2014-07-23 | 扬州大学 | Analog system for treating road surface runoff pollution at ecological permeable side slope |
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