CN104652596A - Rainwater bio-retention filtering device - Google Patents

Rainwater bio-retention filtering device Download PDF

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Publication number
CN104652596A
CN104652596A CN201310587306.7A CN201310587306A CN104652596A CN 104652596 A CN104652596 A CN 104652596A CN 201310587306 A CN201310587306 A CN 201310587306A CN 104652596 A CN104652596 A CN 104652596A
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China
Prior art keywords
delaying basin
rainwater
layer
filter
detained
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CN201310587306.7A
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Chinese (zh)
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CN104652596B (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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Publication of CN104652596A publication Critical patent/CN104652596A/en
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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 a rainwater bio-retention filtering device which comprises a retention pond (1), a retention pond water inlet and a multilayer filtering medium (2). The multilayer filtering medium (2) comprises a covering layer (21), a biological filtering layer (22) and a gravel drain layer (23), wherein the covering layer (21) is positioned on the uppermost layer, the biological filtering layer (22) is positioned in a middle layer and can cultivate plants (8), and the gravel drain layer (23) is positioned on the lowest layer. A perforated collecting pipe (4) is horizontally buried in the gravel drain layer (23), infiltrating holes (41) are formed in the perforated collecting pipe (4), and the perforated collecting pipe (4) is connected with a collecting pipe (5) penetrating the side wall of a retention pond body (11). The rainwater bio-retention filtering device is simple in structure, low in manufacturing cost and convenient to use, runoff and flood peaks can be effectively reduced, and water quality of rainwater runoff can be effectively improved.

Description

A kind of rainwater biology is detained filter
Technical field
The present invention relates to the treating apparatus of a kind of rainwater-collecting and utilization, particularly relate to a kind of novel rainwater biology and be detained filter.
Background technology
In recent years, the rainwater runoff pollution in China's major part city is comparatively serious, and this has become the primary factor that river and lake water quality worsens.The gathering ground that rain drop erosion is different, makes that the pollutant in runoff increases, water degradation, and the heavy metal containing a large amount of sediments, high concentration in runoff.If runoff is unprocessed or process is not up to standard and permeate the ground, heavy metal-polluted soil and toxic chemical substance too high levels will be caused, make soil downright bad, also can cause groundwater pollution.Traditional curb Water drainage system design is with the eliminating as early as possible of rainwater for starting point, but undressed runoff rainwater directly enters downstream water, can cause severe contamination to water body, and simultaneously rainwater forms surface flow fast 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, the rainwater biology providing a kind of structure rainwater-collecting for road, parking lot or garden simple, cheap, easy to use and utilizing works is detained filter.
For achieving the above object, present invention employs following technical scheme:
The invention provides a kind of rainwater biology and be detained filter, comprising: the delaying basin 1 comprising delaying basin body 11 and delaying basin cover plate 12, described delaying basin 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 layer filter media 2 comprises: be positioned at the covering layer 21 of the superiors, be positioned at intermediate layer can planting plants 8 biofiltration layer 22, be positioned at undermost gravel drainage blanket 23.Horizontally embedded punched collection pipe 4 in described gravel drainage blanket 23, described punched collection 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.
Further, described delaying basin water inlet comprises: be arranged on above described delaying basin cover plate 12, for the rainwater from sidewalk gathering surface 6 being introduced the delaying basin desilting mouth grate 31 in described delaying basin body 11; Be arranged on described delaying basin cover plate 12 side, for the rainwater carrying silt and greasy dirt from road, parking lot or garden gathering surface 9 being introduced the rainwater inflow entrance 32 in described delaying basin body 11.
Further, rainwater biology of the present invention is detained filter and also comprises the delaying basin bleed off pipe 7 be embedded vertically in described multiple layer filter media 2, the upper end of described delaying basin bleed off pipe 7 is higher than described covering layer 21, and described delaying basin bleed off pipe 7 is connected with described punched collection pipe 4.
Further, described covering layer 21 is made up of bark, tree root or leaf.
Further, described biofiltration layer 22 adopts transmission coefficient large and the sandy soil that proportioning is different, and its main component is: the sand of 60 ~ 85%, and the organic principle of 5 ~ 10% is no more than the clay of 5%.
Further, described biofiltration layer 22 thickness when adopting herbaceous plant is 250mm, and when adopting xylophyta, thickness is 1000mm.
Further, the gravel cleaned that described gravel drainage blanket 23 is greater than described water seepage hole 41 by diameter forms.
Further, described gravel diameter is no more than 50mm, and the thickness of described gravel drainage blanket 23 is 200 ~ 300mm.
Adopt technique scheme, beneficial effect of the present invention is: rainwater biology of the present invention is detained filter and only need simply assembles at the construction field (site), and the operation of device is without the need to electricity consumption, easy to use, not only can effectively cut down runoff and flood peak, effectively can also improve the water quality of rainfall runoff.Without the need to the maintenance of complexity, only need regularly the sand be deposited in delaying basin and foreign material to be walked clearly.
Accompanying drawing explanation
Fig. 1 is the sectional drawing that rainwater of the present invention biology is detained filter;
Fig. 2 is the sectional view of the A-A line along Fig. 1;
Wherein, 1 delaying basin, 11 delaying basin bodies, 12 delaying basin cover plates, 2 multiple layer filter medias, 21 covering layers, 22 biofiltration layers, 23 gravel drainage blankets, 31 delaying basin desilting mouth grates, 32 rainwater inflow entrances, 4 punched collection pipes, 41 water seepage holes, 5 collecting pipes, 6 sidewalk gathering surfaces, 7 delaying basin bleed off pipes, 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 clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, rainwater biology of the present invention is detained filter and comprises: the delaying basin 1 comprising delaying basin body 11 and delaying basin cover plate 12, and described delaying basin 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 layer filter media 2 comprises: be positioned at the covering layer 21 of the superiors, be positioned at intermediate layer can planting plants 8 biofiltration layer 22, be positioned at undermost gravel drainage blanket 23.Horizontally embedded punched collection pipe 4 in described gravel drainage blanket 23, described punched collection 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.
First rainwater flows in delaying basin 1 from delaying basin water inlet, then successively through covering layer 21, biofiltration layer 22 and gravel drainage blanket 23, flows in punched collection pipe 4 finally by water seepage hole 41, so that the rainwater-collecting that will process.
In a preferred embodiment of the present invention, described delaying basin water inlet comprises: be arranged on above described delaying basin cover plate 12, for the rainwater from sidewalk gathering surface 6 being introduced the delaying basin desilting mouth grate 31 in described delaying basin body 11; Be arranged on described delaying basin cover plate 12 side, for the rainwater carrying silt and greasy dirt from road, parking lot or garden gathering surface 9 being introduced the rainwater inflow entrance 32 in described delaying basin body 11.Rainwater from different gathering surface can be introduced in delaying basin body 11 by the delaying basin water inlet of such setting respectively effectively, improves the efficiency of rainwater-collecting.
In a preferred embodiment of the present invention, described rainwater biology is detained filter and also comprises the delaying basin bleed off pipe 7 be embedded vertically in described multiple layer filter media 2, the upper end of described delaying basin bleed off pipe 7 is higher than described covering layer 21, and described delaying basin bleed off pipe 7 is connected with described punched collection pipe 4.To be detained rainwater in filter saturated and can not be filtered in time for preventing from flowing into described rainwater biology when amount of rainfall is larger for described delaying basin bleed off pipe 7, thus excessive rainfall is drained from described delaying basin bleed off pipe 7, to ensure that described rainwater biology is detained filter and can normally runs in time.
Described covering layer 21 is made up of bark, tree root or leaf, it is conducive to microbial growth, organic degraded and plant absorption, fixed nitrogen and metal object, also contribute to the erosion reducing runoff rainwater simultaneously, the humidity of effective maintenance soil, avoids topsoil harden and cause permeance property to reduce.
Described biofiltration layer 22 adopts transmission coefficient large and the sandy soil that proportioning is different, and its main component is: the sand of 60 ~ 85%, and the organic principle of 5 ~ 10% is no more than the clay of 5%.Described biofiltration layer 22 thickness when adopting herbaceous plant is 250mm, and when adopting xylophyta, thickness is 1000mm.Described biofiltration layer 22 provides enough moisture and nutrition to maintain its growth for plant 8, there is larger penetrating power simultaneously with rainwater of dissolving, for root system of plant absorption and microbial degradation hydrocarbon, metal ion, nutrients and other pollutants provide a good place.
The gravel cleaned that described gravel drainage blanket 23 is greater than described water seepage hole 41 by diameter forms, and like this, gravel would not flow in punched collection pipe 4 through water seepage hole 41 along with rainwater.Described gravel diameter is no more than 50mm, and the thickness of described gravel drainage blanket 23 is 200 ~ 300mm.Described gravel drainage blanket 23 is mainly for the protection of punched collection pipe 4; prevent it from blocking, the storage area that temporary transient is provided simultaneously, reduce runoff volume; rainwater through diafiltration is collected by punched collection pipe 4, and enters other gathering system (not shown) through collecting pipe 5.
The above embodiment only have expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (8)

1. rainwater biology is detained a filter, it is characterized in that, comprising:
Comprise the delaying basin (1) of delaying basin body (11) and delaying basin cover plate (12), described delaying basin cover plate (12) covers the upper end 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 layer filter media (2) comprising: be positioned at the covering layer (21) of the superiors, be positioned at intermediate layer can planting plants (8) biofiltration layer (22), be positioned at undermost gravel drainage blanket (23)
Horizontally embedded punched collection pipe (4) in described gravel drainage blanket (23), described punched collection 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).
2. rainwater biology according to claim 1 is detained filter, and it is characterized in that, described delaying basin water inlet comprises:
Be arranged on described delaying basin cover plate (12) top, for the rainwater from sidewalk gathering surface (6) being introduced delaying basin desilting mouth grate (31) in described delaying basin body (11);
Be arranged on described delaying basin cover plate (12) side, for the rainwater carrying silt and greasy dirt from road, parking lot or garden gathering surface (9) being introduced the rainwater inflow entrance (32) in described delaying basin body (11).
3. rainwater biology according to claim 1 is detained filter, it is characterized in that, also comprise the delaying basin bleed off pipe (7) be embedded vertically in described multiple layer filter media (2), the upper end of described delaying basin bleed off pipe (7) is higher than described covering layer (21), and described delaying basin bleed off pipe (7) is connected with described punched collection pipe (4).
4. the rainwater biology according to any one of claims 1 to 3 is detained filter, and it is characterized in that, described covering layer (21) is made up of bark, tree root or leaf.
5. the rainwater biology according to any one of claims 1 to 3 is detained filter, it is characterized in that, described biofiltration layer (22) adopts transmission coefficient large and the sandy soil that proportioning is different, its main component is: the sand of 60 ~ 85%, the organic principle of 5 ~ 10%, is no more than the clay of 5%.
6. rainwater biology according to claim 5 is detained filter, it is characterized in that, described biofiltration layer (22) thickness when adopting herbaceous plant is 250mm, and when adopting xylophyta, thickness is 1000mm.
7. the rainwater biology according to any one of claims 1 to 3 is detained filter, it is characterized in that, the gravel cleaned that described gravel drainage blanket (23) is greater than described water seepage hole (41) by diameter forms.
8. rainwater biology according to claim 7 is detained filter, and it is characterized in that, described gravel 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 (3)

* 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
CN106006966A (en) * 2016-07-04 2016-10-12 同济大学 Enhanced nitrogen removal bioretention pond
CN110565785A (en) * 2019-08-27 2019-12-13 北京建筑大学 Pretreatment device for road bioretention belt

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH084944A (en) * 1994-06-16 1996-01-12 Kubota Corp Double floor type valve device
US5549817A (en) * 1994-02-14 1996-08-27 Stormtreat Systems, Inc. Stormwater treatment system/apparatus
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
CN103073111A (en) * 2013-02-01 2013-05-01 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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5549817A (en) * 1994-02-14 1996-08-27 Stormtreat Systems, Inc. Stormwater treatment system/apparatus
JPH084944A (en) * 1994-06-16 1996-01-12 Kubota Corp Double floor 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
CN103073111A (en) * 2013-02-01 2013-05-01 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

Cited By (4)

* 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
CN106006966A (en) * 2016-07-04 2016-10-12 同济大学 Enhanced nitrogen removal bioretention pond
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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