CN105803892A - Method capable of being used for rain water seepage-filtering, collection and storage and purification in sponge city - Google Patents

Method capable of being used for rain water seepage-filtering, collection and storage and purification in sponge city Download PDF

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Publication number
CN105803892A
CN105803892A CN201610151638.4A CN201610151638A CN105803892A CN 105803892 A CN105803892 A CN 105803892A CN 201610151638 A CN201610151638 A CN 201610151638A CN 105803892 A CN105803892 A CN 105803892A
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China
Prior art keywords
rainwater
charcoal
layer
purified
purification
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CN201610151638.4A
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Chinese (zh)
Inventor
韩建刚
范弟武
朱咏莉
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南京林业大学
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Priority to CN201610151638.4A priority Critical patent/CN105803892A/en
Publication of CN105803892A publication Critical patent/CN105803892A/en

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    • 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
    • E01C11/224Surface drainage of streets
    • 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
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F1/00Methods, systems, or installations for draining-off sewage or storm water
    • E03F1/002Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • 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
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F2003/001Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
    • C02F2003/003Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
    • 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
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • 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
    • 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
    • C02F3/327Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
    • 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
    • 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
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/40Protecting water resources

Abstract

The invention discloses a method capable of being used for rain water seepage-filtering, collection and storage and purification in a sponge city.The method comprises the steps of firstly, selecting an appropriate position, excavating a foundation pit of a biological detention pond and water storage wells, and laying open vertical-rim stone strips 5-10 cm away from the two sides of the road surface of the biological detention pond.The biological detention pond comprises a rubble cover layer, a vegetation planting soil layer, a charcoal filler layer and a gravel drainage layer in sequence from top to bottom, and seepage-proof films are laid at the periphery and the bottom of the biological detention pond.An overflow pipe is laid on the gravel drainage layer, an overflow port in the upper end is 5-10 cm higher than the rubble cover layer, and the lower end is connected with a municipal drainage pipe network.The system can be applied to the places such as a residential area, a campus, a parking lot, a park and a road, rainwater can be collected and stored, the content of pollutants such as nitrogen, phosphorus and heavy metal in the rainwater can be reduced, the recycling purpose is achieved, finally, urban inland inundation is effectively alleviated, and rainwater utilization efficiency is improved.

Description

A kind of sponge urban rainwater that can be used for oozes worry, harvests and the method 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 have good " elasticity ", during rainfall " infiltration, water-retention, water purification " in adapting to environmental change and reply natural disaster etc., it is necessary to time by the water " release " accumulated and be used.In recent years, take place frequently along with extreme weather is multiple, ubiquity waterlogging phenomenon after China's many cities experience heavy showers.Recently, the theory in " sponge city " receives publicity more and more in solving urban waterlogging, is written into construction plan successively.Method and the thinking of conventional China improvement urban waterlogging are relatively easy, lay particular emphasis on more pursuit large area hardening road surface, set up and expand under ooze facility and subsoil drain etc., but rainwater is simply carried out space transfer by a straightforward manner, still falls within the forced-ventilated to rainwater.Sunk type greenery patches, the infiltration pool, the wet pool etc. start to receive publicity and build rapidly in recent years, but owing to filler is relatively single, ooze under rainwater although accelerating to a certain extent, but are difficult to store rainwater, and rainwater are 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 necessary by the multi-function device 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, may finally 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 method 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 method purified, it is characterised in that comprise the following steps:
Step one, makes subaerial rainwater first contact with opening vertical curb band and biological delaying basin gravel mulch layer so that it is the material that middle volume is bigger obtains rainwater A after being intercepted;
Step 2, makes subsequently to ooze under rainwater A and plants soil layer to vegetation and obtain preliminary purification and obtain rainwater B;
Step 3, rainwater B enters charcoal packing layer through geotextiles, obtains rainwater C after accumulating and purify with being able to;
Step 4, the rainwater C after charcoal packing layer purifies is entered in water-retention well by gravel drainage blanket, thus completing oozing worry, harvest and purification subaerial rainwater.
Described rainwater C can apply to spray road surface, plant and cleaning vehicle.
When running into rainstorm weather, in described subaerial rainwater, part rainwater is entered in municipal drainage pipe network through overflow pipe by overfall.
Described charcoal packing layer includes charcoal filler device and charcoal improvement soil.
Described gravel drainage blanket lays overflow pipe, and upper end connects overfall, lower end is connected to municipal drainage pipe network.
A kind of sponge urban rainwater that can be used for realizing above method oozes worry, harvests and the multifunction system purified, it is characterised in that: include biological delaying basin and water-retention well;
Described biological delaying basin includes from top to bottom successively: gravel mulch layer, vegetation plantation soil layer, charcoal packing layer and gravel drainage blanket;Meanwhile, 3~5cm barrier film is all laid at the inside circumference of biological delaying basin and bottom;Described vegetation plantation soil layer is separated by by geotextiles with charcoal packing layer;Described biological delaying basin both sides are respectively arranged with the construction scale of the local rainfall throughout the year of water-retention well, the construction specification of water-retention well and quantity basis or flow path surface and biological delaying basin and determine;Described water-retention well is connected with gravel drainage blanket by underground piping, is used for storing rainwater after purification.
Described water-retention well is used for storing rainwater after purification;Described biological delaying basin connects with water-retention well;It is equipped with opening vertical curb band at biological delaying basin distance 5~10cm place, both sides, road surface, as the water inlet of biological delaying basin, retains the bigger material of some volumes (such as branch, plastic bag etc.) simultaneously.
Described vegetation plantation soil layer soil is charcoal improvement soil, the soil after being sufficiently mixed by soil and charcoal 9:1 by volume, and thickness is 20~30cm, and the soil after improvement is prone to rainwater infiltration on the one hand, is beneficial to the growth of plant on the other hand;Described charcoal is to be prepared from after 300~600 DEG C burn under starvation by rice husk, straw, weeds or forest leftover bits and pieces.
Described gravel mulch layer thickness is 3~5cm, and vegetation is planted the direct souring of soil layer and vegetation root in order to cushion rainwater.
Described charcoal filler device is made by cement material, and pressure-bearing, voltage endurance capability are good, safe and reliable;Specification is: length × wide × height=50cm × 50cm × 60cm, wall thickness is 3~5cm;Uniformly opening 12 permeable circular holes each of charcoal filler device, permeable Circularhole diameter is 8~10cm, and the adjacent permeable circular hole heart is from for 15 ± 1cm;Charcoal 42.2 ± 8.1kg is filled in charcoal filler device;Simultaneously for preventing charcoal granule from spilling from permeable circular hole, one layer of geotextiles of surrounding place mat inside charcoal filler device;The charcoal improvement soil that charcoal filler device and thickness are 5~10cm is spaced.
Gravel drainage blanket thickness is 10~20cm, and the overfall of overflow pipe upper end exceeds gravel mulch layer 5~10cm.
The present invention to the diafiltration of rainwater, harvest and purification process is: when rainwater flows to biological delaying basin, first contact with opening vertical curb band and biological delaying basin gravel mulch layer, bigger material is intercepted, rainwater infiltration obtains preliminary purification through vegetation plantation soil layer subsequently, again through geotextiles, continue on through charcoal packing layer, accumulated up hill and dale and purify;Rainwater after charcoal packing layer enters in the water-retention well of both sides by gravel drainage blanket, and the construction specification of water-retention well and quantity should be determined according to the construction scale of the long-term rainfall in locality or flow path surface and biological delaying basin.When running into rainstorm weather, part rainwater can pass through overfall and enter in municipal drainage pipe network through overflow pipe.
Rainwater after present invention purification can be used for spraying road surface, plant and cleaning vehicle etc..
The present invention has beneficial effect.The present invention is by adopting soil-plant-charcoal multiple techniques so that this system not only has good water-retention 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, is conducive to oozing under rainwater on the one hand, makes rainwater obtain preliminary purification simultaneously, improves the efficiency purified further;The present invention is by adopting rainwater backflow and water storage system (water-retention 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 modular charcoal filler device, only need to be placed in filler device, then equidistantly be arranged by filler device so that convenient and flexible operation, namely throw and namely use, it is not necessary to any power, have stronger practicality by the present invention;The charcoal that the present invention is prepared from by adopting rice husk, straw, weeds, forest leftover bits and pieces the like waste, abundant raw materials, and greatly reduce cost;The present invention is by the charcoal of employing as filler, and charcoal not only absorption property is good, moreover it is possible to antioxidation, anti-decomposition so that charcoal can retain year even up to a hundred decades, durable in soil, is also substantially reduced the maintenance cost of system.
Accompanying drawing explanation
Fig. 1 is the plane graph of present system
Fig. 2 is the side view of present system
Fig. 3 is the front view of present system
Fig. 4-1 is the charcoal filler device figure of present system
Fig. 4-2 is the charcoal filler device front view of present system
Fig. 4-3 is the charcoal filler device side view of native system
Fig. 4-4 is the charcoal filler device top view of present system
In figure, 1-ground, 2-opening vertical curb band, 3-biology delaying basin, 4-charcoal filler device, 5-charcoal, 6-barrier film, 7-water-retention well, 8-gravel mulch layer, 9-vegetation plantation soil layer, 10-geotextiles, 11-gravel drainage blanket, 12-overfall, 13-overflow pipe connects municipal drainage pipe network, and 14-permeates aperture, the permeable circular hole of 15-
Detailed description of the invention
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 the method purified, and can set up this system at residential neighborhoods, university campus, parking lot, park, road etc., specifically include following steps:
First the position that suitable physical features is relatively low is chosen, biological delaying basin 3 foundation ditch of excavation and for storing the water-retention well 7 of rainwater after purification;
(1) lay the vertical curb band 2 of opening at biological delaying basin 3 apart from 5~10cm place, both sides, road surface, for the water inlet of biology delaying basin 3, retain the bigger material of some volumes (such as branch, plastic bag etc.) simultaneously;
(2) 3~5cm barrier film 6 is all laid at the inside circumference of biological delaying basin 3 and bottom;Biological delaying basin 3 is sequentially disposed in from bottom to top: gravel drainage blanket 11, charcoal packing layer, vegetation plantation soil layer 9 and gravel mulch layer 8;
(3) laying 10~20cm gravel drainage blanket 11 on barrier film 6, lay overflow pipe at this layer simultaneously, overflow pipe upper end overfall 12 exceeds gravel mulch layer 85~10cm, and a perforated plate is fixed on overfall upper end, lower termination municipal drain net 13;Gravel drainage blanket 11 is connected with water-retention well 3 by underground piping;
(4) charcoal packing layer includes charcoal filler device 4 and charcoal improvement soil;Charcoal filler device 4 makes for cement material, and pressure-bearing, voltage endurance capability are good, safe and reliable.Specification is: length × wide × height=50cm × 50cm × 60cm, wall thickness is 3~5cm;Uniformly opening 12 permeable circular holes 15 each of charcoal filler device 4, permeable circular hole (15) diameter is 8~10cm, and the adjacent circular hole heart is from for 15cm;Charcoal 42.2 ± 8.1kg is filled in charcoal filler device (4);Simultaneously for preventing charcoal granule from spilling from permeable circular hole 15, one layer of geotextiles 10 of surrounding place mat inside charcoal filler device 4;The charcoal improvement soil that charcoal filler device 4 and thickness are 5~10cm is spaced;
(5) charcoal packing layer is separated by by geotextiles 10 with vegetation plantation soil layer 9;
(6) planting, in vegetation, charcoal improvement soil (volume ratio, soil: charcoal=9:1 are sufficiently mixed) that soil layer 9 laying depth is 20~30cm, the soil after improvement is prone to rainwater infiltration on the one hand, is beneficial to the growth of plant on the other hand;
(7) plant soil layer 9 in vegetation and uniformly lay the gravel mulch layer 8 of 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 integrated treatment, and its process is:
When rainwater flows to biological delaying basin 3, first contact with opening vertical curb band 2 and gravel mulch layer 8, bigger material is intercepted, rainwater infiltration obtains preliminary purification through vegetation plantation soil layer 9 subsequently, through geotextiles 10, continue on through charcoal packing layer 4, accumulated up hill and dale and purified, rainwater after charcoal packing layer enters in the water-retention well 7 of both sides by gravel drainage blanket 11, and the construction specification of water-retention well 7 and quantity should be determined according to the construction scale of the long-term rainfall 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 pass through overfall and flow in municipal drainage pipe network through overflow pipe.
Described biotinylated biomolecule delaying basin 3 should be arranged on physical features relatively lower, it is ensured that oozes, accumulate and purifies under rainwater.
The quantity of planting plants can be determined according to the specification of actual construction biology delaying basin.Floristics can according to local climate condition and determine in conjunction with ecosystem characterization etc..
Rainwater treatment flow process:
Rainwater → opening vertical curb and gravel mulch layer buffering → lignosa purify → biologyCharcoalThe rainwater of packing layer accumulation and purifying again → gravel drainage blanket → flow into through overflow pipe municipal drainage pipe network or cistern → clean.
The above only have expressed embodiments of the present invention, and specifically describes, but is not the restriction of the present invention, all some amendments of making and improvement within this intention spirit and principle, all should belong to the protection domain of this intention.

Claims (5)

1. one kind can be used for sponge urban rainwater and oozes worry, harvests and the method purified, it is characterised in that comprise the following steps:
Step one, makes subaerial rainwater first contact with opening vertical curb band and biological delaying basin gravel mulch layer so that it is the material that middle volume is bigger obtains rainwater A after being intercepted;
Step 2, makes subsequently to ooze under rainwater A and plants soil layer to vegetation and obtain preliminary purification and obtain rainwater B;
Step 3, rainwater B enters charcoal packing layer through geotextiles, obtains rainwater C after accumulating and purify with being able to;
Step 4, the rainwater C after charcoal packing layer purifies is entered in water-retention well by gravel drainage blanket, thus completing oozing worry, harvest and purification subaerial rainwater.
2. a kind of sponge urban rainwater that can be used for according to claim 1 oozes worry, harvests and the method purified, it is characterised in that: described rainwater C can apply to spray road surface, plant and cleaning vehicle.
3. a kind of sponge urban rainwater that can be used for according to claim 1 oozes worry, harvests and the method purified, it is characterised in that: when running into rainstorm weather, in described subaerial rainwater, part rainwater is entered in municipal drainage pipe network through overflow pipe by overfall.
4. a kind of sponge urban rainwater that can be used for according to claim 1 oozes worry, harvests and the method purified, it is characterised in that: described charcoal packing layer includes charcoal filler device and charcoal improvement soil.
5. a kind of sponge urban rainwater that can be used for according to claim 1 oozes worry, harvests and the method purified, it is characterised in that: described gravel drainage blanket lays overflow pipe, and upper end connects overfall, lower end is connected to municipal drainage pipe network.
CN201610151638.4A 2016-03-16 2016-03-16 Method capable of being used for rain water seepage-filtering, collection and storage and purification in sponge city CN105803892A (en)

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Cited By (9)

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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
CN106612692A (en) * 2016-09-18 2017-05-10 南京林业大学 Costal saline-alkaline land landscape planting method based on charcoal interlayer and landscape tree seeds panting structure
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
CN107409814A (en) * 2017-08-07 2017-12-01 中国建筑设计院有限公司 A kind of high-order rainwater flower bed for the savings of sponge urban rainwater, purification
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
WO2018191924A1 (en) * 2017-04-20 2018-10-25 苏州大学张家港工业技术研究院 Modularization-based processing system and processing method for road rainwater runoff in low impact city
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
CN109279699A (en) * 2018-07-30 2019-01-29 大江环境股份有限公司 A kind of enhanced compounded mix can be used for the processing of face source runoff pollution
CN110130455A (en) * 2019-04-26 2019-08-16 中国能源建设集团广东省电力设计研究院有限公司 Discharge structure, plant area's drainage system and draining method of construction

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CN101892702A (en) * 2010-08-05 2010-11-24 上海交通大学 Onsite processing device for discarding initial rainwater in heavy rain without occupying area and processing method thereof
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CN106612692A (en) * 2016-09-18 2017-05-10 南京林业大学 Costal saline-alkaline land landscape planting method based on charcoal interlayer and landscape tree seeds panting structure
CN106612692B (en) * 2016-09-18 2019-11-12 南京林业大学 A kind of beach saline land landscape planting method and landscape tree kind plantation construction based on charcoal interlayer
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
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
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
WO2018191924A1 (en) * 2017-04-20 2018-10-25 苏州大学张家港工业技术研究院 Modularization-based processing system and processing method for road rainwater runoff in low impact city
CN107409814A (en) * 2017-08-07 2017-12-01 中国建筑设计院有限公司 A kind of high-order rainwater flower bed for the savings of sponge urban rainwater, purification
CN109279699A (en) * 2018-07-30 2019-01-29 大江环境股份有限公司 A kind of enhanced compounded mix can be used for the processing of face source runoff pollution
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
CN110130455A (en) * 2019-04-26 2019-08-16 中国能源建设集团广东省电力设计研究院有限公司 Discharge structure, plant area's drainage system and draining method of construction

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Application publication date: 20160727