CN112263858A - Rainwater collecting and purifying facility - Google Patents

Rainwater collecting and purifying facility Download PDF

Info

Publication number
CN112263858A
CN112263858A CN202011328268.XA CN202011328268A CN112263858A CN 112263858 A CN112263858 A CN 112263858A CN 202011328268 A CN202011328268 A CN 202011328268A CN 112263858 A CN112263858 A CN 112263858A
Authority
CN
China
Prior art keywords
rainwater
layer
pipe
flow wetland
water outlet
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.)
Pending
Application number
CN202011328268.XA
Other languages
Chinese (zh)
Inventor
常东洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Original Assignee
Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Investigation Design and Research Institute Co Ltd SIDRI filed Critical Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Priority to CN202011328268.XA priority Critical patent/CN112263858A/en
Publication of CN112263858A publication Critical patent/CN112263858A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
    • E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
    • E03F1/001—Methods, systems, or installations for draining-off sewage or storm water into a body of water
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
    • 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

The invention relates to the technical field of urban rainwater treatment, in particular to a rainwater collection and purification facility, which comprises a rainwater collection pipe, a filter tank, a water outlet pipe and a surface flow wetland, wherein the rainwater collection pipe, the filter tank and the water outlet pipe are arranged below a pavement of a waterfront area, the surface flow wetland is arranged at the edge of a riverway of the waterfront area, and the filter tank is provided with an inlet connected with the rainwater collection pipe, an outlet connected with the water outlet pipe and a filter element arranged between; the rainwater collecting pipe introduces surface rainwater into the filtering tank, and the surface rainwater is filtered by the filtering piece and then is conveyed to the surface layer of the surface flow wetland through the water outlet pipe. The surface rainwater can be introduced into the filtering tank by the rainwater collecting pipe, the surface rainwater is conveyed to the surface layer of the surface flow wetland through the water outlet pipe after the particles and pollutants with larger granularity are filtered, the particles and pollutants flow through the surface layer of the surface flow wetland and then enter river water, and the surface flow wetland can play a role in biological purification on the surface rainwater and also has a water seepage and storage function. From this, this rainwater is collected and is purified facility has realized the purification and the sponge function of entering river rainwater.

Description

Rainwater collecting and purifying facility
Technical Field
The invention relates to the technical field of urban rainwater treatment, in particular to a rainwater collecting and purifying facility.
Background
Due to the hardening of the road surface caused by the construction of facilities such as urban roofs, roads, ground surfaces and the like, most of rainfall cannot permeate into the ground to form surface runoff on the hard road surface. At present, urban surface rainwater is mainly collected by municipal rainwater pipe network and is got rid of, to the surface rainwater on waterfront district road surface, often directly goes into the river after collecting by municipal rainwater pipe network, does not possess into the function that river rainwater purifies, rainwater regulation held, is unfavorable for ecological environment's maintenance.
Disclosure of Invention
The invention aims to provide a rainwater collecting and purifying facility with a sponge function and a river rainwater purifying function, so as to overcome the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme: a rainwater collecting and purifying facility comprises a rainwater collecting pipe, a filtering tank, a water outlet pipe and a surface flow wetland, wherein the rainwater collecting pipe is arranged below the pavement of a waterfront area, the surface flow wetland is arranged at the edge of a riverway of the waterfront area, and the filtering tank is provided with an inlet connected with the rainwater collecting pipe, an outlet connected with the water outlet pipe and a filtering piece arranged between the inlet and the outlet; the rainwater collecting pipe introduces surface rainwater into the filtering tank, and the surface rainwater is filtered by the filtering piece and then is conveyed to the surface layer of the surface flow wetland through the water outlet pipe.
Preferably, the rainwater collecting pipe is connected with a rainwater grate in a municipal rainwater pipe network.
Preferably, the bottom of the filter tank comprises a soil base layer and a permeable layer paved on the soil base layer.
Preferably, the permeable layer is a permeable geotextile.
Preferably, the filter member is a filler filled in the filter tank, and the inlet and the outlet are respectively provided at the top and the bottom of the filter tank.
Preferably, the filler comprises a lower layer, a middle layer and an upper layer which are sequentially paved from bottom to top, and the granularity of the filler materials of the lower layer, the middle layer and the upper layer is gradually increased.
Preferably, the filling material of the lower layer adopts melon seed flaky stones or quartz sand, the filling material of the middle layer adopts fine gravel or ceramsite, and the filling material of the upper layer adopts coarse gravel.
Preferably, the lower, middle and upper layers are the same thickness.
Preferably, the thickness of the lower layer, the middle layer and the upper layer is not less than 150 mm.
Preferably, a wooden pile enclosure is arranged on one side of the surface flow wetland, which faces the center of the river channel.
Compared with the prior art, the invention has the remarkable progress that:
by adopting the rainwater collecting and purifying facility, the rainwater on the earth surface can be introduced into the inlet of the filter tank by the rainwater collecting pipe, so that the rainwater on the earth surface enters the filter tank from the inlet, then flows through the filter element, the particulate matters and pollutants with larger granularity are filtered by the filter element, then flows out of the filter tank from the outlet and enters the water outlet pipe, and then the rainwater on the earth surface filtered by the filter tank is conveyed to the surface layer of the surface flow wetland by the water outlet pipe, so that the rainwater on the earth surface flows into the water flow of the river channel after flowing through the surface layer of the surface flow wetland, and the surface flow wetland can play a role in biological purification on the rainwater on the earth surface flowing through. Therefore, the rainwater collecting and purifying facility realizes the purification of rainwater entering a river and the function of sponge.
Drawings
Fig. 1 is a schematic sectional view of a rainwater collection and purification facility according to an embodiment of the present invention.
Wherein the reference numerals are as follows:
1. rainwater collecting pipe 2 and filtering tank
201. Soil base layer 202 and permeable layer
21. Inlet 22, outlet
23. Filter 231, lower layer
232. Middle layer 233 and upper layer
3. Water outlet pipe 4, surface flow wetland
5. Wood pile fence 10 and river channel
100. Waterfront footpath 200 and footpath
300. Vehicle running road
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to limit the present invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1, an embodiment of the rainwater collection and purification facility of the present invention. The rainwater collection and purification facility of the embodiment comprises a rainwater collection pipe 1, a filter tank 2, a water outlet pipe 3 and a surface flow wetland 4.
Wherein, rainwater collecting pipe 1, filtering ponds 2 and outlet pipe 3 all locate under the front of a river road surface of water district, and surface current wetland 4 locates the edge of front of a river course 10 of water district.
The rainwater collecting pipe 1 plays a role in collecting rainwater on the ground surface of the pavement of the waterfront area and introduces the collected rainwater on the ground surface into the filtering tank 2. Preferably, the rainwater collecting pipe 1 can be connected with a rainwater grate in a municipal rainwater pipe network, the rainwater grate is usually arranged on the road ground, rainwater in surface runoff of the road can flow into the rainwater grate, and the rainwater collecting pipe 1 conveys the surface rainwater flowing into the rainwater grate to the filtering tank 2.
The filtering tank 2 is used for filtering the surface rainwater introduced by the rainwater collecting pipe 1 so as to filter out particles and pollutants with larger granularity in the surface rainwater. The filtering tank 2 is of a hollow tank body structure, and the filtering tank 2 is provided with an inlet 21, an outlet 22 and a filtering piece 23. The inlet 21 of the filtering tank 2 is connected with the rainwater collecting pipe 1 and is used for inputting surface rainwater introduced by the rainwater collecting pipe 1. The outlet 22 of the filter tank 2 is connected with the water outlet pipe 3 and is used for outputting the surface rainwater in the filter tank 2. Filter piece 23 and locate filter tank 2 inside and locate between filter tank 2's entry 21 and export 22 for filter the earth's surface rainwater that gets into in filter tank 2, filter piece 23 can filter the great particulate matter of granularity and pollutant in the earth's surface rainwater.
The water outlet pipe 3 is used for conveying the surface rainwater filtered by the filter tank 2 to the surface layer of the surface flow wetland 4, and the tail end (namely the water outlet end) of the water outlet pipe 3 is positioned above the surface layer of the surface flow wetland 4. Preferably, the water outlet pipe 3 can be a polyethylene pipe or a fast-sending dragon pipe.
As shown by the arrow in fig. 1, the rainwater collection and purification facility of the present embodiment is adopted, the rainwater on the earth surface can be introduced into the inlet 21 of the filter tank 2 by the rainwater collection pipe 1, so that the rainwater on the earth surface enters the filter tank 2 from the inlet 21, then flows through the filter element 23, flows out of the filter tank 2 from the outlet 22 after filtering out the particulate matters and pollutants with larger particle sizes by the filter element 23 and enters the water outlet pipe 3, then the rainwater on the earth surface filtered by the filter tank 2 is conveyed to the surface layer of the surface flow wetland 4 by the water outlet pipe 3, and then flows through the surface layer of the surface flow wetland 4 and then enters the water flow of the river channel 10, and the surface flow wetland 4 can perform biological purification on the rainwater on the earth surface flowing through, and has a. From this, the rainwater of this embodiment is collected and is purified facility and has realized the purification and the sponge function of entering river rainwater.
In this embodiment, preferably, the outer periphery and the top of the tank body of the filtering tank 2 may be of a reinforced concrete structure, which has the advantage of stable and reliable structural strength. An access hole can be reserved at the top of the filtering tank 2 so as to facilitate the inspection and maintenance of the filtering tank 2.
In this embodiment, preferably, the bottom of the filtering tank 2 may include a soil base 201 and a permeable layer 202 laid on the soil base 201. The soil base layer 201 is a soil layer with a low compaction coefficient and has good water seepage capability. The permeable layer 202 plays a role of permeable water so that part of the surface rainwater in the filter tank 2 can permeate into the soil base layer 201 downwards. From this, filtering ponds 2 also have certain infiltration function when realizing filtering capability, have increased the rainwater of this embodiment and have collected the holistic infiltration ability of purification facility. Preferably, the permeable layer 202 may be a permeable geotextile, and the permeable geotextile is laid on the upper surface of the soil base layer 201.
In this embodiment, the filtering member 23 is preferably a packing filled in the filtering tank 2, and the inlet 21 and the outlet 22 of the filtering tank 2 are respectively provided at the top and the bottom of the filtering tank 2. The surface rainwater introduced by the rainwater collecting pipe 1 enters the filter tank 2 from an inlet 21 at the top of the filter tank 2, then naturally falls down, and reaches the bottom of the filter tank 2 after filling in the filter tank 2, wherein one part of the surface rainwater can permeate the permeable layer 202 at the bottom of the filter tank 2 to permeate into the soil base layer 201, and the other part of the surface rainwater is output through an outlet 22 at the bottom of the filter tank 2 to enter the water outlet pipe 3 and is conveyed to the surface layer of the surface flow wetland 4 through the water outlet pipe 3. The filler can play a good filtering role in the surface rainwater entering the filtering tank 2, and effectively filters out the particulate matters and pollutants with larger granularity in the surface rainwater.
Preferably, the filler may include a lower layer 231, a middle layer 232 and an upper layer 233 which are sequentially laid from bottom to top, and the granularity of the filler material of the lower layer 231, the middle layer 232 and the upper layer 233 is gradually increased. From this can play filterable effect step by step to the earth's surface rainwater that gets into in the filtering ponds 2 and from top to bottom whereabouts, reach the filter effect of preferred.
Preferably, the filling material of the lower layer 231 of the filler can be made of melon seed stones or quartz sand, the filling material of the middle layer 232 of the filler can be made of fine gravels or porcelain granules, and the filling material of the upper layer 233 of the filler can be made of coarse gravels.
Preferably, the thicknesses of the filler lower layer 231, the middle layer 232, and the upper layer 233 may be set to be the same. Preferably, the thicknesses of the lower filler layer 231, the middle layer 232 and the upper layer 233 are not less than 150 mm. In a preferred embodiment, the thicknesses of the filler lower layer 231, the middle layer 232, and the upper layer 233 may be set to 200mm, respectively.
In this embodiment, preferably, the side of the surface flow wetland 4 facing the center of the river channel 10 is provided with a timber apron 5, and the surface flow wetland 4 is an aquatic plant growing area surrounded and baffled by the timber apron 5 at the edge of the river channel 10 in the waterfront area, so that plants can be planted, and the effect of purifying rainwater entering the river can be achieved, and the landscape effect of the waterfront area can also be improved. The surface flow wetland 4 may be in the form of a strip extending along the edge of the river 10. The stake enclosure 5 may be formed of vertical fir-tree stakes closely spaced around the edge of the riverway 10 in the waterfront area.
In conclusion, the rainwater collecting and purifying facility of the embodiment can be used for realizing the functions of purifying the rainwater entering the river in the urban waterfront area and collecting and removing the spongy rainwater, the use scene can be urban waterfront areas such as urban waterfront squares, waterfront platforms and the like, the land area thereof may be provided with a waterfront footpath 100 (i.e., a hydrophilic platform), a sidewalk 200 and a roadway 300 in sequence in a direction away from the river 10, when the rainwater collecting and purifying facility is arranged in the urban waterfront area, the water outlet pipe 3, the filter tank 2 and the rainwater collecting pipe 1 can be sequentially arranged under the road surface of the land area along the direction away from the river channel 10, the water inlet end of the rainwater collecting pipe 1 extends to the rainwater grate of the roadway, therefore, the surface rainwater flowing into the rainwater grate on the road surface can be introduced into the filtering tank 2, and the filtering tank 2 and the surface flow wetland 4 jointly realize the sponginess rainwater collection and removal function and the river rainwater purification function.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims (10)

1. A rainwater collecting and purifying facility is characterized by comprising a rainwater collecting pipe (1), a filtering tank (2), a water outlet pipe (3) and a surface flow wetland (4) arranged at the edge of a riverway (10) of a waterfront area, wherein the rainwater collecting pipe (1), the filtering tank (2) and the surface flow wetland are arranged below the pavement of the waterfront area, the surface flow wetland is provided with an inlet (21) connected with the rainwater collecting pipe (1), an outlet (22) connected with the water outlet pipe (3) and a filtering piece (23) arranged between the inlet (21) and the outlet (22); the rainwater collecting pipe (1) introduces surface rainwater into the filtering tank (2), and the surface rainwater is filtered by the filtering piece (23) and then is conveyed to the surface layer of the surface flow wetland (4) through the water outlet pipe (3).
2. A rainwater collection and purification installation according to claim 1, wherein the rainwater collection pipe (1) is connected to a rainwater grate in a municipal rainwater pipe network.
3. A stormwater collecting and purifying installation as claimed in claim 1, characterized in that the bottom of the filter basin (2) comprises a soil substrate (201) and a water-permeable layer (202) laid on the soil substrate (201).
4. A rainwater collection and purification installation according to claim 3, wherein said water permeable layer (202) is a water permeable geotextile.
5. A rainwater collection and purification installation according to claim 1, wherein said filter element (23) is a packing filled in said filtering basin (2), said inlet (21) and said outlet (22) being provided at the top and bottom of said filtering basin (2), respectively.
6. A rainwater collection and purification facility according to claim 5, wherein said filler comprises a lower layer (231), a middle layer (232) and an upper layer (233) which are sequentially laid from bottom to top, and the granularity of the filler material of said lower layer (231), middle layer (232) and upper layer (233) is gradually increased.
7. A rainwater collection and purification installation according to claim 6, characterized in that the filling material of the lower layer (231) is made of melon seed stones or quartz sand, the filling material of the middle layer (232) is made of fine gravel or ceramsite, and the filling material of the upper layer (233) is made of coarse gravel.
8. A stormwater collecting and purifying installation as claimed in claim 6, characterized in that the lower, middle and upper layers (231, 232, 233) are of the same thickness.
9. A stormwater collecting and purifying installation as claimed in claim 6, wherein the thickness of the lower, middle and upper layers (231, 232, 233) is no less than 150 mm.
10. A rainwater collection and purification facility according to claim 1, wherein the side of the surface flow wetland (4) facing the center of the river channel (10) is provided with a timber fender (5).
CN202011328268.XA 2020-11-24 2020-11-24 Rainwater collecting and purifying facility Pending CN112263858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011328268.XA CN112263858A (en) 2020-11-24 2020-11-24 Rainwater collecting and purifying facility

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011328268.XA CN112263858A (en) 2020-11-24 2020-11-24 Rainwater collecting and purifying facility

Publications (1)

Publication Number Publication Date
CN112263858A true CN112263858A (en) 2021-01-26

Family

ID=74339911

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011328268.XA Pending CN112263858A (en) 2020-11-24 2020-11-24 Rainwater collecting and purifying facility

Country Status (1)

Country Link
CN (1) CN112263858A (en)

Similar Documents

Publication Publication Date Title
US5810510A (en) Underground drainage system
CN101649592B (en) Road drainage system
CN109098064B (en) Sponge urban road structure capable of avoiding rainwater deposition on road surface
KR101294715B1 (en) Nonpoint Source Contaminant Treatment Apparatus of Road
CN109356225A (en) A kind of Multifunctional rain ecological utilization system
CN102260011B (en) Road surface runoff purification system
CN201485768U (en) Road drainage system
KR101152978B1 (en) Management Block of Polluted Runoff Having Function of Non-point Pollutant Reduction
KR101008421B1 (en) The water distribution system using an invisible distributing pipe and a drainage hole for cleaning
CN113201992A (en) Stepped biological detention device for highway pavement runoff
Shammaa et al. Techniques for controlling total suspended solids in stormwater runoff
CN108330912B (en) Catchment sponge slope protection structure
CN105293706B (en) City sinking gallery type landscape wetland
CN214105946U (en) Rainwater collecting and purifying facility
CN112263858A (en) Rainwater collecting and purifying facility
CN206721599U (en) A kind of rainwater-collecting ecological pavement with drainage water purification kerbstone
CN112939332B (en) Sponge urban road rainwater cuts dirty clean system
Admute et al. Permeable pavements: New technique for construction of road pavements in India
CN210946327U (en) Municipal administration rainwater drainage system
CN209815892U (en) Ecological purifying system of road surface runoff
CN219471147U (en) Ecological filter ditch in sponge city
CN106930396B (en) Modular road rainwater runoff treatment system and treatment method for sponge city
CN219260623U (en) Urban branch road sponge facility structure
CN217580911U (en) Water-permeable rain-collecting step walkway
CN212688598U (en) Municipal administration rainwater infiltration road bed

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination