CN105625549A - Multifunctional system for rainwater infiltration, collection and storage and purification of sponge city - Google Patents

Multifunctional system for rainwater infiltration, collection and storage and purification of sponge city Download PDF

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Publication number
CN105625549A
CN105625549A CN201610149617.9A CN201610149617A CN105625549A CN 105625549 A CN105625549 A CN 105625549A CN 201610149617 A CN201610149617 A CN 201610149617A CN 105625549 A CN105625549 A CN 105625549A
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China
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charcoal
layer
rainwater
gravel
soil
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CN201610149617.9A
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CN105625549B (en
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韩建刚
范弟武
朱咏莉
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China soil construction Limited by Share Ltd
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Nanjing Forestry University
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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F1/00Methods, systems, or installations for draining-off sewage or storm water
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00Details of pavings
    • E01C11/22Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E03F5/102Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins using already existing parts of the sewer system for runoff-regulation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/001Runoff or storm water
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F2201/00Details, devices or methods not otherwise provided for
    • E03F2201/10Dividing the first rain flush out of the stormwater flow
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/30Flood prevention; Flood or storm water management, e.g. using flood barriers

Abstract

The invention discloses a multifunctional system for rainwater infiltration, collection and storage and purification of a sponge city.The system comprises a bioretention pond and water storage wells.Firstly, appropriate positions are selected for digging of a foundation pit of the bioretention pond and the water storage wells, and the portions, 5-10 cm away from the two sides of the bioretention pond, of the road surface are paved with opened vertical curb belts.The bioretention pond sequentially comprises a gravel covering layer, a vegetation planting soil layer, a biochar packing layer and a gravel drainage layer from top to bottom, and the periphery and bottom of the bioretention pond are both paved with anti-seepage thin film.An overflow pipe is laid on the gravel drainage layer, an upper end overflow opening is 5-10 cm higher than the gravel covering layer, and the lower end of the overflow pipe is connected with a municipal drainage pipe network.The system can be used at the places such as residential areas, schools, parking lots, parks and roads, not only can rainwater be stored, but also the content of pollutants such as nitrogen, phosphorus and heavy metal can be reduced, the purpose of recycling is achieved, city water logging is effectively relieved, and the rainwater use efficiency is improved.

Description

A kind of sponge urban rainwater that can be used for oozes worry, harvests and the multifunction system purified
Technical field
The invention belongs to urban rainwater accumulation and purification techniques field, what be specifically related to is a kind of can be used for the rainwater diafiltration in sponge city, harvest and purification multifunctional system regions.
Technical background
Sponge city refers to that city as sponge, can adapt to have good " elasticity " in environmental change and reply natural disaster etc., during rainfall " infiltration, retaining, water purification ", it is necessary to time by the water " release " accumulated and be used. In recent years, taking place frequently along with extreme weather is multiple, generally there is waterlogging phenomenon after meeting with heavy showers in the many cities of China. Recently, the theory in " sponge city " is paid close attention to more and more in solution urban waterlogging, is written into construction plan successively. The method that conventional China administers urban waterlogging is relative with thinking simple, lay particular emphasis on more and pursue big area hardening road surface, set up and ooze facility and underdrainage pipeline etc. under expanding, but rainwater is just carried out space transfer by a straightforward manner, still belongs to the strong row to rainwater. Sunk type greenery patches, the infiltration pool, the wet pool etc. start to be subject to paying close attention to and build rapidly in recent years, but due to filler relatively single, although oozing under accelerating rainwater to a certain extent, but be difficult to effectively store rainwater, and rainwater purified and is used. Therefore, research and development can efficiently, continue to ensure rainwater infiltration, store, purify, the construction in sponge city is seemed particularly necessity by the multifunctional apparatus of reuse and system.
Therefore, the present invention a kind of can be used for the rainwater diafiltration in sponge city, harvests and purification multifunctional system, it is possible to effectively store urban rainwater and rainwash, simultaneously purifying rainwater, finally can effectively alleviate urban waterlogging, saving water resource, raising research advances.
Summary of the invention
It is an object of the invention to provide a kind of sponge urban rainwater that can be used for ooze worry, harvest and the multifunction system purified, to solve the problem of secondary pollution that urban rainwater is not easily accumulated and caused in accumulation process. The final purpose of the present invention is to store, purify and recycle urban rainwater or rainwash, alleviates urban waterlogging, saving water resource, raising research advances.
For solving above technical problem, the concrete technical scheme that the present invention adopts is as follows:
A kind of sponge urban rainwater that can be used for oozes worry, harvests and the multifunction system purified, it is characterised in that: comprise biological delaying basin and retaining well;
Described biological delaying basin comprises from top to bottom successively: gravel mulch layer, vegetation plantation soil layer, charcoal packing layer and gravel layer of displacement; Meanwhile, 3��5cm barrier film is all laid in inside circumference and the bottom of biological delaying basin; Described charcoal packing layer comprises charcoal filler unit and charcoal improvement soil;
Described vegetation plantation soil layer and charcoal packing layer are separated by by geotextile; Described gravel layer of displacement lays overflow pipe, and upper end connects overflow port, lower end is connected to municipal drainage pipe network; Described biological delaying basin both sides are respectively arranged with retaining well, the construction scale of the construction specification of retaining well and the local rainfall amount throughout the year of quantity basis or flow path surface and biological delaying basin and determine; Described retaining well is connected with gravel layer of displacement by underground pipeline, for storing the rear rainwater of purification.
Described retaining well is for storing the rear rainwater of purification; Described biological delaying basin is connected with retaining well; It is equipped with the vertical edge stone band of opening at biological delaying basin distance 5��10cm place, both sides, road surface, as the water-in of biological delaying basin, retains the bigger material of some volumes (such as branch, plastics bag etc.) simultaneously.
Described vegetation plantation soil layer soil is charcoal improvement soil, by soil and charcoal by volume 9:1 carry out abundant mixed soil, thickness is 20��30cm, and the soil after improvement is easy to rainwater infiltration on the one hand, is beneficial to the growth of plant on the other hand; Described charcoal is prepared from after 300��600 DEG C of burnings under isolated oxygen by rice husk, stalk, weeds or forest tankage.
Described gravel mulch layer thickness is 3��5cm, in order to cushion rainwater to the direct souring of vegetation plantation soil layer and vegetation root.
Described charcoal filler unit is made by cement material, and pressure-bearing, voltage endurance capability are good, safe and reliable; Specification is: length �� wide �� height=50cm �� 50cm �� 60cm, and wall thickness is 3��5cm; Evenly opening 12 permeable circular holes each of charcoal filler unit, permeable Circularhole diameter is 8��10cm, and adjacent permeable circular hole heart distance is 15 �� 1cm; Filled biomass charcoal 42.2 �� 8.1kg in charcoal filler unit; Simultaneously for preventing charcoal particle from spilling from permeable circular hole, surrounding place mat one layer of geotextile inside charcoal filler unit; The charcoal improvement soil that charcoal filler unit and thickness are 5��10cm is spaced.
Gravel layer of displacement thickness is 10��20cm, and the overflow port of upflow tube upper end exceeds gravel mulch layer 5��10cm.
The present invention to the diafiltration of rainwater, harvest and scavenging process is: when rainwater flows to biological delaying basin, first vertical with opening edge stone band contacts with biological delaying basin gravel mulch layer, bigger material is blocked, rainwater infiltration obtains rough purification through vegetation plantation soil layer subsequently, again through geotextile, continue through charcoal packing layer, it is able to thoroughly accumulate and purify; Rainwater after charcoal packing layer enters into the retaining well of both sides by gravel layer of displacement, and the construction specification of retaining well and quantity should be determined according to the construction scale of the long-term rainfall amount in locality or flow path surface and biological delaying basin. When running into rainstorm weather, part rainwater can be entered in municipal drainage pipe network through upflow tube by overflow port.
Rainwater after the present invention's purification can be used for spraying road surface, plant and cleaning vehicle etc.
The present invention has useful effect. The present invention is by adopting soil-plant-charcoal coupling technique so that this system not only has good retaining performance, also has purification function efficient, low cost; The present invention is by adopting the soil after charcoal is improved so that soil layer construction is more loose, oozes, make rainwater obtain rough purification simultaneously under being conducive to rainwater on the one hand, it is to increase the efficiency of purification further; The present invention is by adopting rainwater backflow and water storage system (retaining well) so that the rainwater after purification can be used as watering and spills road surface, cleans vehicle and spray vegetation etc., substantially increases the resource utilization efficiency of rainwater; Appropriate charcoal, by adopting the charcoal filler unit of modularization, only need to be placed in filler unit by the present invention, is then equidistantly arranged by filler unit so that convenient and flexible operation, namely throws and namely use, it is not necessary to any power, has stronger practicality; The charcoal that the present invention is prepared from by adopting rice husk, stalk, weeds, forest tankage the like waste, abundant raw materials, and greatly reduce cost; The present invention is by the charcoal of employing as filler, and not only absorption property is good for charcoal, moreover it is possible to decomposition anti-oxidant, anti-so that charcoal can retain the year even up to a hundred decades in soil, and durable, also reduces the maintenance cost of system greatly.
Accompanying drawing explanation
Fig. 1 is the orthographic plan of system of the present invention
Fig. 2 is the side-view of system of the present invention
Fig. 3 is the front view of system of the present invention
Fig. 4-1 is the charcoal filler unit figure of system of the present invention
Fig. 4-2 is the charcoal filler unit front view of system of the present invention
Fig. 4-3 is the charcoal filler unit side-view of native system
Fig. 4-4 is the charcoal filler unit vertical view of system of the present invention
In figure, 1-ground, 2-opening founds edge stone band, the biological delaying basin of 3-, 4-charcoal filler unit, 5-charcoal, 6-barrier film, 7-retaining well, 8-gravel mulch layer, 9-vegetation plantation soil layer, 10-geotextile, 11-gravel layer of displacement, 12-overflow port, 13-upflow tube connects municipal drainage pipe network, and 14-permeates aperture, the permeable circular hole of 15-
Embodiment
Below in conjunction with the drawings and specific embodiments to making those skilled in the art more fully understand the present invention, but the present invention is not limited only to this.
The present invention a kind of can be used for the rainwater diafiltration in sponge city, harvests and purification multifunctional system, can set up this system at residential neighborhoods, university campus, parking lot, park, road etc., specifically comprise the following steps:
First the position that suitable physical features is lower is chosen, biological delaying basin 3 Ji Keng of excavation and the retaining well 7 for storing the rear rainwater of purification;
(1) lay the vertical edge stone band 2 of opening at biological delaying basin 3 apart from 5��10cm place, both sides, road surface, it is the water-in of biological delaying basin 3, retains the bigger material of some volumes (such as branch, plastics bag etc.) simultaneously;
(2) 3��5cm barrier film 6 is all laid in inside circumference and the bottom of biological delaying basin 3; Biological delaying basin 3 is arranged as from bottom to top successively: gravel layer of displacement 11, charcoal packing layer, vegetation plantation soil layer 9 and gravel mulch layer 8;
(3) laying 10��20cm gravel layer of displacement 11 on barrier film 6, lay upflow tube at this layer simultaneously, upflow tube upper end overflow port 12 exceeds gravel mulch layer 85��10cm, and a perforation plate is fixed on overflow port upper end, lower termination municipal drainage pipe network 13; Gravel layer of displacement 11 is connected with retaining well 3 by underground pipeline;
(4) charcoal packing layer comprises charcoal filler unit 4 and charcoal improvement soil; Charcoal filler unit 4 is cement material making, and pressure-bearing, voltage endurance capability are good, safe and reliable. Specification is: length �� wide �� height=50cm �� 50cm �� 60cm, and wall thickness is 3��5cm; Evenly opening 12 permeable circular holes 15 each of charcoal filler unit 4, permeable circular hole (15) diameter is 8��10cm, and adjacent circular hole heart distance is 15cm; The interior filled biomass charcoal 42.2 �� 8.1kg of charcoal filler unit (4); Simultaneously for preventing charcoal particle from spilling from permeable circular hole 15, surrounding place mat one layer of geotextile 10 inside charcoal filler unit 4; The charcoal improvement soil that charcoal filler unit 4 and thickness are 5��10cm is spaced;
(5) charcoal packing layer and vegetation plantation soil layer 9 are separated by by geotextile 10;
(6) planting, in vegetation, the charcoal improvement soil (volume ratio, soil: charcoal=9:1 fully mix) that soil layer 9 laying depth is 20��30cm, the soil after improvement is easy to rainwater infiltration on the one hand, is beneficial to the growth of plant on the other hand;
(7) plant, in vegetation, the gravel mulch layer 8 that soil layer 9 evenly lays 3��5cm thickness, play the effect of buffering rainwater.
This invention utilizes the absorption of plant, soil and charcoal and detergent power that rainwater is carried out comprehensive treating process, and its process is:
When rainwater flows to biological delaying basin 3, first vertical with opening edge stone band 2 contacts with gravel mulch layer 8, bigger material is blocked, rainwater infiltration obtains rough purification through vegetation plantation soil layer 9 subsequently, through geotextile 10, continue through charcoal packing layer 4, it is able to thoroughly accumulate and purify, rainwater after charcoal packing layer enters into the retaining well 7 of both sides by gravel layer of displacement 11, and the construction specification of retaining well 7 and quantity should be determined according to the construction scale of the long-term rainfall amount in locality or flow path surface and biological delaying basin 3. Rainwater after purification can be used for spraying road surface, plant and cleaning vehicle etc., and when running into rainstorm weather, part rainwater can be flowed in municipal drainage pipe network through upflow tube by overflow port.
Described biotinylated biomolecule delaying basin 3 should be arranged on physical features relatively lower, oozes, accumulates and purifies under ensureing rainwater.
Can determine to plant according to the specification of actual construction biological delaying basin the quantity of plant. Floristics can according to local climate condition and determine in conjunction with ecosystem characterization etc. Rainwater treatment flow process:
The vertical edge stone of rainwater �� opening and gravel mulch layer buffering �� woody vegetation purification-�� biologyCharcoalThe rainwater of packing layer accumulation and purifying again �� gravel layer of displacement �� flow into through overflow spout municipal drainage pipe network or water reservoir �� clean.
The above only have expressed embodiments of the present invention, and specifically describes, but is not the restriction of the present invention, and all some amendments of making and improvement within this intention spirit and principle, all should belong to the protection domain of this intention.

Claims (6)

1. one kind can be used for sponge urban rainwater and oozes worry, harvests and the multifunction system purified, it is characterised in that: comprise biological delaying basin and retaining well;
Described biological delaying basin comprises from top to bottom successively: gravel mulch layer, vegetation plantation soil layer, charcoal packing layer and gravel layer of displacement; Meanwhile, barrier film is all laid in inside circumference and the bottom of biological delaying basin; Described charcoal packing layer comprises charcoal filler unit and charcoal improvement soil;
Described vegetation plantation soil layer and charcoal packing layer are separated by by geotextile; Described gravel layer of displacement lays overflow pipe, and upper end connects overflow port, lower end is connected to municipal drainage pipe network; Described biological delaying basin both sides are respectively arranged with retaining well, the construction scale of the construction specification of retaining well and the local rainfall amount throughout the year of quantity basis or flow path surface and biological delaying basin and determine; Described retaining well is connected with gravel layer of displacement by underground pipeline.
2. a kind of sponge urban rainwater that can be used for according to claim 1 oozes worry, harvests and the multifunction system purified, it is characterised in that: described retaining well is for storing the rear rainwater of purification; Described biological delaying basin is connected with retaining well; It is equipped with the vertical edge stone band of opening, as the water-in of biological delaying basin at biological delaying basin distance 5 ~ 10cm place, both sides, road surface.
3. a kind of sponge urban rainwater that can be used for according to claim 1 oozes worry, harvests and the multifunction system purified, it is characterized in that: described vegetation plantation soil layer soil is charcoal improvement soil, by soil and charcoal by volume 9:1 carry out abundant mixed soil, thickness is 20 ~ 30cm; Described charcoal is prepared from after 300 ~ 600 DEG C of burnings under isolated oxygen by rice husk, stalk, weeds or forest tankage.
4. a kind of sponge urban rainwater that can be used for according to claim 1 oozes worry, harvests and the multifunction system purified, it is characterized in that: described gravel mulch layer thickness is 3 ~ 5cm, in order to cushion rainwater to the direct souring of vegetation plantation soil layer and vegetation root.
5. a kind of sponge urban rainwater that can be used for according to claim 1 oozes worry, harvests and the multifunction system purified, it is characterised in that: described charcoal filler unit is made by cement material, and pressure-bearing, voltage endurance capability are good, safe and reliable; Specification is: length �� wide �� height=50cm �� 50cm �� 60cm, and wall thickness is 3 ~ 5cm; Evenly opening 12 permeable circular holes each of charcoal filler unit, permeable Circularhole diameter is 8 ~ 10cm, and adjacent permeable circular hole heart distance is 15 �� 1cm; Filled biomass charcoal 42.2 �� 8.1kg in charcoal filler unit; Simultaneously for preventing charcoal particle from spilling from permeable circular hole, surrounding place mat one layer of geotextile inside charcoal filler unit; The charcoal improvement soil that charcoal filler unit and thickness are 5 ~ 10cm is spaced.
6. a kind of sponge urban rainwater that can be used for according to claim 1 oozes worry, harvests and the multifunction system purified, it is characterised in that: gravel layer of displacement thickness is 10 ~ 20cm, and the overflow port of upflow tube upper end exceeds gravel mulch layer 5 ~ 10cm.
CN201610149617.9A 2016-03-16 2016-03-16 A kind of multifunction system for oozing worry available for sponge urban rainwater, harvesting and purifying Active CN105625549B (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
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CN106630430A (en) * 2016-12-30 2017-05-10 同济大学 Groundwater pollution circulating purification system under effects of key sponge-city modules
CN106830506A (en) * 2017-01-24 2017-06-13 河海大学 A kind of intensified denitrification and dephosphorization biology delaying basin for being applied to sponge urban construction
CN106930358A (en) * 2017-04-26 2017-07-07 贵州建工集团第建筑工程有限责任公司 A kind of pergola on the city road LID is biological to be detained ditch
CN106958179A (en) * 2017-04-11 2017-07-18 水利部交通运输部国家能源局南京水利科学研究院 Slow down the urban road structure and its method of construction of waterlogging
CN106962057A (en) * 2017-04-18 2017-07-21 湖南文理学院 Sponge urban construction road rain water processing system
CN107094390A (en) * 2017-04-19 2017-08-29 上海溪昌环境工程有限公司 A kind of new method for building sponge city
CN107265630A (en) * 2017-06-27 2017-10-20 河海大学 A kind of two-way seepage flow biological delaying basin of internal retaining post
CN108157046A (en) * 2018-01-12 2018-06-15 徐士岐 A kind of device and method for being conducive to the ancient Chinese pine root water and soil conservation of hillside fields growth and adjusting water, gas, fertilizer in soil
CN108178441A (en) * 2018-01-03 2018-06-19 北京师范大学 A kind of permeable decontamination material assembly module of sponge urban construction
CN108341496A (en) * 2017-01-23 2018-07-31 天津大学 A kind of biological delaying basin filler for handling soluble organic nitrogen in rainwater
CN108341485A (en) * 2017-01-23 2018-07-31 天津大学 The biological delaying basin filler of nitrate nitrogen in a kind of removal rainwater
CN108862846A (en) * 2018-07-03 2018-11-23 重庆科技学院 A kind of method of urban rainwater management and processing
CN109052651A (en) * 2018-08-31 2018-12-21 上海应用技术大学 A kind of multi-functional low biological gaseous-waste holdup system of influence exploitation
CN109133328A (en) * 2017-06-19 2019-01-04 天津大学 A kind of biology delaying basin filler
CN113187068A (en) * 2021-05-12 2021-07-30 中建八局第二建设有限公司 A recessed formula greenery patches structure for rainwater is collected in sponge city

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CN106630430A (en) * 2016-12-30 2017-05-10 同济大学 Groundwater pollution circulating purification system under effects of key sponge-city modules
CN108341485A (en) * 2017-01-23 2018-07-31 天津大学 The biological delaying basin filler of nitrate nitrogen in a kind of removal rainwater
CN108341496A (en) * 2017-01-23 2018-07-31 天津大学 A kind of biological delaying basin filler for handling soluble organic nitrogen in rainwater
CN106830506B (en) * 2017-01-24 2020-09-01 河海大学 Enhanced nitrogen and phosphorus removal biological retention tank applied to sponge city construction
CN106830506A (en) * 2017-01-24 2017-06-13 河海大学 A kind of intensified denitrification and dephosphorization biology delaying basin for being applied to sponge urban construction
CN106958179B (en) * 2017-04-11 2019-04-09 水利部交通运输部国家能源局南京水利科学研究院 Slow down the urban road structure and its method of construction of waterlogging
CN106958179A (en) * 2017-04-11 2017-07-18 水利部交通运输部国家能源局南京水利科学研究院 Slow down the urban road structure and its method of construction of waterlogging
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