CN104652596B - The biological filter that is detained of a kind of rainwater - Google Patents

The biological filter that is detained of a kind of rainwater Download PDF

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Publication number
CN104652596B
CN104652596B CN201310587306.7A CN201310587306A CN104652596B CN 104652596 B CN104652596 B CN 104652596B CN 201310587306 A CN201310587306 A CN 201310587306A CN 104652596 B CN104652596 B CN 104652596B
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China
Prior art keywords
delaying basin
rainwater
layer
detained
biological filter
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CN104652596A (en
Inventor
余雪松
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BEIJING TIDELION S&I RAINWATER HARVESTING TECHNOLOGY Co Ltd
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BEIJING TIDELION S&I RAINWATER HARVESTING TECHNOLOGY Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/14Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates

Abstract

The invention discloses the biological filter that is detained of a kind of rainwater, comprising: delaying basin (1), delaying basin water inlet, multiple layer filter media (2). Described multiple layer filter media (2) comprising: be positioned at the superiors cover layer (21), be positioned at intermediate layer can planting plants (8) biofiltration layer (22), be positioned at undermost gravel drainage blanket (23). Horizontally embedded perforation collecting pipe (4) in described gravel drainage blanket (23), described perforation collecting pipe (4) is provided with water seepage hole (41), and it is connected with the collecting pipe (5) of the sidewall through described delaying basin body (11). The biological filter apparatus configuration that is detained of rainwater of the present invention is simple, cheap, easy to use, not only can effectively cut down runoff and flood peak, can also effectively improve the water quality of rainfall runoff.

Description

The biological filter that is detained of a kind of rainwater
Technical field
The present invention relates to the treating apparatus of a kind of rainwater-collecting and utilization, relate in particular to a kind of novel rainAquatic organism is detained filter.
Background technology
In recent years, the rainwater runoff pollution in the most of city of China is comparatively serious, and this has become river lake waterThe primary factor that matter worsens. The gathering ground that rain drop erosion is different, makes that pollutant in runoff increases, waterQualitative change is poor, and in runoff, contains a large amount of sediments, the heavy metal of high concentration. If runoff is without locatingManage or process not up to standard and permeate the ground, will cause heavy metal-polluted soil and toxic chemical substance content mistakeHeight, makes soil necrosis, also can cause underground water pollution. Traditional curb Water drainage system design be withThe eliminating as early as possible of rainwater is starting point, but undressed runoff rainwater directly enters downstream water body,Can cause severe contamination to water body, while rainwater forms fast rainwash and will cause fearful flood.
Summary of the invention
The object of the invention is to for above-mentioned the deficiencies in the prior art, provide a kind of simple in structure,Rainwater-collecting for road, parking lot or garden cheap, easy to use with utilize engineeringThe biological filter that is detained of rainwater.
For achieving the above object, the present invention has adopted following technical scheme:
The invention provides the biological filter that is detained of a kind of rainwater, comprising: comprise delaying basin body 11With the delaying basin 1 of delaying basin cover plate 12, described delaying basin cover plate 12 covers at described delaying basin body11 upper end; Be arranged on the delaying basin water inlet on described delaying basin cover plate 12; Be arranged on described stagnantStay the multiple layer filter media 2 in pond body 11. Described multiple layer filter media 2 comprises: be positioned at the superiorsCover layer 21, be positioned at intermediate layer can planting plants 8 biofiltration layer 22, be positioned at orlopGravel drainage blanket 23. Horizontally embedded perforation collecting pipe 4 in described gravel drainage blanket 23, described inPerforation collecting pipe 4 is provided with water seepage hole 41, and its with pass the sidewall of described delaying basin body 11Collecting pipe 5 be connected.
Further, described delaying basin water inlet comprises: be arranged on described delaying basin cover plate 12 tops, for introducing the delay in described delaying basin body 11 from the rainwater of pavement gathering surface 6Pond desilting mouth grate 31; Be arranged on described delaying basin cover plate 12 sides, for will from road,The rainwater that carries silt and greasy dirt of parking lot or garden gathering surface 9 is introduced described delaying basin body 11Interior rainwater inflow entrance 32.
Further, rainwater of the present invention biological be detained filter also comprise be embedded vertically at described manyDelaying basin overflow pipe 7 in layer filter medium 2, the upper end of described delaying basin overflow pipe 7 is higher than describedCover layer 21, described delaying basin overflow pipe 7 is connected with described perforation collecting pipe 4.
Further, described cover layer 21 is made up of bark, tree root or leaf.
Further, described biofiltration layer 22 adopts the sand soil that infiltration coefficient is large and proportioning is differentEarth, its main component is: 60~85% sand, 5~10% organic principle, is no more than 5%Clay.
Further, described biofiltration layer 22 thickness in the time adopting herbaceous plant is 250mm,While adopting xylophyta, thickness is 1000mm.
Further, described gravel drainage blanket 23 is greater than the clean gravel of described water seepage hole 41 by diameterStone composition.
Further, described gravel diameter is no more than 50mm, the thickness of described gravel drainage blanket 23Be 200~300mm.
Adopt technique scheme, beneficial effect of the present invention is: rainwater biology of the present invention was detainedFilter device only need simply be assembled at the construction field (site), and the operation of device is without electricity consumption, easy to use,Not only can effectively cut down runoff and flood peak, can also effectively improve the water quality of rainfall runoff. Without multipleAssorted maintenance, only needs regularly the sand and the foreign material that are deposited in delaying basin to be walked clearly.
Brief description of the drawings
Fig. 1 is the biological profile that is detained filter of rainwater of the present invention;
Fig. 2 is the sectional view along the A-A line of Fig. 1;
Wherein, 1 delaying basin, 11 delaying basin bodies, 12 delaying basin cover plates, 2 multiple layer filter medias,21 cover layers, 22 biofiltration layers, 23 gravel drainage blankets, 31 delaying basin desilting mouth grates, 32Rainwater inflow entrance, 4 perforation collecting pipes, 41 water seepage holes, 5 collecting pipes, 6 pavement gathering surfaces, 7Delaying basin overflow pipe, 8 plants, 9 roads, parking lot or garden gathering surface.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawingAnd embodiment, the present invention is further elaborated. Should be appreciated that described herein concreteEmbodiment only, in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, the biological filter that is detained of rainwater of the present invention comprises: comprise delaying basin body11 and the delaying basin 1 of delaying basin cover plate 12, described delaying basin cover plate 12 cover described delaying basin thisThe upper end of body 11; Be arranged on the delaying basin water inlet on described delaying basin cover plate 12; Described in being arranged onMultiple layer filter media 2 in delaying basin body 11. Described multiple layer filter media 2 comprises: be positioned at and go up mostThe cover layer 21 of layer, be positioned at intermediate layer can planting plants 8 biofiltration layer 22, be positioned underThe gravel drainage blanket 23 of layer. Horizontally embedded perforation collecting pipe 4 in described gravel drainage blanket 23, instituteState perforation collecting pipe 4 and be provided with water seepage hole 41, and its with pass the side of described delaying basin body 11The collecting pipe 5 of wall is connected.
First rainwater flows in delaying basin 1 from delaying basin water inlet, then pass through successively cover layer 21,Biofiltration layer 22 and gravel drainage blanket 23, finally flow into perforation collecting pipe 4 by water seepage hole 41In, so that by the rainwater-collecting of processing.
In a preferred embodiment of the present invention, described delaying basin water inlet comprises: be arranged on described stagnantStay pond cover plate 12 tops, for introducing described delaying basin from the rainwater of pavement gathering surface 6Delaying basin desilting mouth grate 31 in body 11; Be arranged on described delaying basin cover plate 12 sides,For the rainwater that carries silt and greasy dirt from road, parking lot or garden gathering surface 9 is introduced to instituteState the rainwater inflow entrance 32 in delaying basin body 11. The delaying basin water inlet arranging like this can be distinguishedRainwater from different gathering surfaces is introduced in delaying basin body 11 effectively, improved rainwater-collectingEfficiency.
In a preferred embodiment of the present invention, the biological filter that is detained of described rainwater also comprises verticallyBe embedded in the delaying basin overflow pipe 7 in described multiple layer filter media 2, described delaying basin overflow pipe 7Upper end is higher than described cover layer 21, and described delaying basin overflow pipe 7 is connected with described perforation collecting pipe 4.Described delaying basin overflow pipe 7 is for preventing that in the time that amount of rainfall is larger flowing into biological delay of described rainwater filtersRainwater in device is saturated and can not be filtered in time, thereby makes excessive rainfall from described delaying basinIn overflow pipe 7, drain in time, to ensure that the biological filter that is detained of described rainwater can normally move.
Described cover layer 21 is made up of bark, tree root or leaf, its be conducive to microbial growth,Organic degraded and plant absorption, fixed nitrogen and metal object also contribute to reduce runoff rain simultaneouslyThe erosion of water, effectively keeps the humidity of soil, avoids topsoil to harden and causes permeance property to reduce.
Described biofiltration layer 22 adopts the sandy soil that infiltration coefficient is large and proportioning is different, and it is mainComposition is: 60~85% sand, 5~10% organic principle, is no more than 5% clay. DescribedBiofiltration layer 22 thickness in the time adopting herbaceous plant is 250mm, thickness in the time adopting xylophytaFor 1000mm. Described biofiltration layer 22 provides enough moisture and nutrition to maintain for plant 8Its growth has larger penetrating power with the rainwater of dissolving simultaneously, is root system of plant absorption and micro-lifeThing degradable carbon hydrogen compound, metal ion, nutrients and other pollutants provide a good place.
The clean gravel that described gravel drainage blanket 23 is greater than described water seepage hole 41 by diameter forms, thisSample, gravel just can be along with rainwater flows in perforation collecting pipe 4 through water seepage hole 41. Described gravelStone diameter is no more than 50mm, and the thickness of described gravel drainage blanket 23 is 200~300mm. Described gravelStone drainage blanket 23, mainly for the protection of perforation collecting pipe 4, prevents that it from stopping up, and provides one temporarily simultaneouslyStorage area, reduce runoff volume, collected by the collecting pipe 4 of boring a hole through the rainwater of diafiltration, and warpCollecting pipe 5 enters other gathering system (not shown).
The above embodiment has only expressed embodiments of the present invention, and it describes comparatively concrete and detailedCarefully, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention. It is right to it should be pointed out thatIn those of ordinary skill in the art, without departing from the inventive concept of the premise, can also doGo out some distortion and improvement, these all belong to protection scope of the present invention. Therefore, patent of the present inventionProtection domain should be as the criterion with claims.

Claims (7)

1. the biological filter that is detained of rainwater, is characterized in that, comprising:
Comprise the delaying basin (1) of delaying basin body (11) and delaying basin cover plate (12), described delayPond cover plate (12) covers the upper end at described delaying basin body (11);
Be arranged on the delaying basin water inlet on described delaying basin cover plate (12);
Be arranged on the multiple layer filter media (2) in described delaying basin body (11), described multiple filtrationMedium (2) comprising: be positioned at the superiors cover layer (21), be positioned at intermediate layer can planting plants (8)Biofiltration layer (22), be positioned at undermost gravel drainage blanket (23),
Horizontally embedded perforation collecting pipe (4) in described gravel drainage blanket (23), described perforation is collectedPipe (4) is provided with water seepage hole (41), and its with pass the sidewall of described delaying basin body (11)Collecting pipe (5) be connected,
Also comprise the delaying basin overflow pipe (7) being embedded vertically in described multiple layer filter media (2),The upper end of described delaying basin overflow pipe (7) is higher than described cover layer (21), described delaying basin overflow pipe(7) be connected with described perforation collecting pipe (4).
2. the biological filter that is detained of rainwater according to claim 1, is characterized in that, described inDelaying basin water inlet comprises:
Be arranged on described delaying basin cover plate (12) top, for will be from pavement gathering surface (6)Rainwater introduce the delaying basin desilting mouth grate (31) in described delaying basin body (11);
Be arranged on described delaying basin cover plate (12) side, for will be from road, parking lot orThe rainwater that carries silt and greasy dirt of garden gathering surface (9) is introduced in described delaying basin body (11)Rainwater inflow entrance (32).
3. the biological filter that is detained of rainwater according to claim 1 and 2, is characterized in that,Described cover layer (21) is made up of bark, tree root or leaf.
4. the biological filter that is detained of rainwater according to claim 1 and 2, is characterized in that,Described biofiltration layer (22) adopts the sandy soil that infiltration coefficient is large and proportioning is different, and it mainly becomesBe divided into: 60~85% sand, 5~10% organic principle, is no more than 5% clay.
5. the biological filter that is detained of rainwater according to claim 4, is characterized in that, described inBiofiltration layer (22) thickness in the time adopting herbaceous plant is 250mm, in the time adopting xylophytaThickness is 1000mm.
6. the biological filter that is detained of rainwater according to claim 1 and 2, is characterized in that,The clean gravel that described gravel drainage blanket (23) is greater than described water seepage hole (41) by diameter forms.
7. the biological filter that is detained of rainwater according to claim 6, is characterized in that, described inGravel diameter is no more than 50mm, and the thickness of described gravel drainage blanket (23) is 200~300mm.
CN201310587306.7A 2013-11-20 2013-11-20 The biological filter that is detained of a kind of rainwater Active CN104652596B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105174478A (en) * 2015-09-29 2015-12-23 武汉圣禹排水系统有限公司 Biofilter
CN106006966B (en) * 2016-07-04 2019-06-11 同济大学 A kind of biological delaying basin of strengthened denitrification
CN110565785A (en) * 2019-08-27 2019-12-13 北京建筑大学 Pretreatment device for road bioretention belt

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5437786A (en) * 1994-02-14 1995-08-01 Stormtreat Systems, Inc. Stormwater treatment system/apparatus
JP3292779B2 (en) * 1994-06-16 2002-06-17 株式会社クボタ Double bed type valve device
JP2004196339A (en) * 2002-12-18 2004-07-15 Tokyo Metropolis Cover structure of vertical tank opening
CN202627166U (en) * 2012-06-25 2012-12-26 宁波市政工程建设集团股份有限公司 Novel water-discharging ecological zone for town road
CN103073111B (en) * 2013-02-01 2014-06-11 北京建筑工程学院 Urban road rainfall runoff ecological coprocessing device and method
CN203729430U (en) * 2013-11-20 2014-07-23 北京泰宁科创雨水利用技术股份有限公司 Rainwater bioretention filtering device

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