CN112110581A - Purification and regulation system for road surface rainwater runoff - Google Patents
Purification and regulation system for road surface rainwater runoff Download PDFInfo
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- CN112110581A CN112110581A CN202010755032.8A CN202010755032A CN112110581A CN 112110581 A CN112110581 A CN 112110581A CN 202010755032 A CN202010755032 A CN 202010755032A CN 112110581 A CN112110581 A CN 112110581A
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- rainwater
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- 230000033228 biological regulation Effects 0.000 title claims abstract description 25
- 238000000746 purification Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000004576 sand Substances 0.000 claims abstract description 17
- 239000011449 brick Substances 0.000 claims abstract description 14
- 238000001179 sorption measurement Methods 0.000 claims abstract description 14
- 238000012856 packing Methods 0.000 claims abstract description 12
- 239000002689 soil Substances 0.000 claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims description 10
- 239000003830 anthracite Substances 0.000 claims description 10
- 239000003245 coal Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 7
- 229910021536 Zeolite Inorganic materials 0.000 claims description 6
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000010457 zeolite Substances 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 239000012466 permeate Substances 0.000 claims description 5
- 239000010902 straw Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 238000003860 storage Methods 0.000 abstract description 9
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000011065 in-situ storage Methods 0.000 abstract description 3
- 230000001699 photocatalysis Effects 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- FMMWHPNWAFZXNH-UHFFFAOYSA-N Benz[a]pyrene Chemical compound C1=C2C3=CC=CC=C3C=C(C=C3)C2=C2C3=CC=CC2=C1 FMMWHPNWAFZXNH-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 2
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C5/00—Pavings made of prefabricated single units
- E01C5/04—Pavings made of prefabricated single units made of bricks
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Health & Medical Sciences (AREA)
- Structural Engineering (AREA)
- Toxicology (AREA)
- Public Health (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention provides a purification and regulation system for rainwater runoff on a road surface, and belongs to the technical field of water treatment. The inlet end of the system is connected with a road surface rainwater collecting system through a rainwater pipe 1, rainwater flows through a water permeable brick 3 with a photocatalytic function, a sand cushion layer 4, a planting soil layer 5, a packing layer 6 and a bearing layer 7 from top to bottom in sequence after entering the system, then flows into an active carbon adsorption area 9 horizontally through a perforated tracery wall 8, then flows into a porous cellucotton regulation and storage area 10 from top to bottom, and the area is communicated with external underground water through a water permeable wall 12 to realize storage and replenishment functions. In addition, the vegetation 2 planted in the planting soil layer 3 can beautify the environment and can intercept and biodegrade partial organic pollutants. The system not only plays a role in regulation and storage of storm runoff, but also can solve the problem of pollution of the road surface rainwater runoff on a water body, and is beneficial to in-situ and dispersive treatment of the road surface rainwater runoff.
Description
Technical Field
The invention relates to a purification and regulation system for rainwater runoff on a road surface, and belongs to the technical field of water treatment.
Background
Road construction with rapid development leads to a sudden increase in road surface runoff and runoff pollutants. The road surface rainwater runoff contains suspended particles, heavy metals, nutrient substances (N, P), oil, polycyclic aromatic hydrocarbon and other organic pollutants. The runoff of the pavement is directly discharged into nearby water bodies without treatment or insufficient treatment, and causes pollution to the water ecological environment. In addition, the pavement runoff is used as non-point source pollution, has the characteristics of uneven space-time distribution, complex components and the like, and has high capital construction cost for centralized collection and treatment and strong impact effect on sewage treatment plants.
At present, suspended particles and heavy metals can be removed by retention technologies such as a system, permeable pavement and the like, but organic pollutants such as polycyclic aromatic hydrocarbons and the like in rainwater runoff of a pavement are not degraded sufficiently. Therefore, when organic matters are removed by utilizing the adsorption, microbial degradation and plant absorption, the ecological and safe photocatalysis technology is integrated into a pavement runoff treatment system so as to improve the degradation rate of organic pollutants, and the method is very important for improving the urban water ecological environment.
Disclosure of Invention
The invention aims to provide a purification and regulation system for rainwater runoff on a road surface, which removes various pollutants in the rainwater runoff on the road surface by utilizing photocatalytic degradation, interception and biological action of plants and microorganisms and adsorption action of activated carbon after collected rainwater on the road surface is introduced into the treatment system nearby. Meanwhile, the water storage performance of the porous cellucotton is utilized, the treated rainwater is stored in rainy days, and the rainwater is released to supplement underground water or meet the needs of plants in sunny days so as to realize the regulation and storage effect on the rainwater.
Technical scheme
The technical problem to be solved by the invention is realized by adopting the following technical scheme.
The invention provides a road surface rainwater runoff purification and regulation system, which is characterized by comprising: the rainwater pipe 1, the vegetation 2, the brick 3 that permeates water, the sand cushion 4, plant soil layer 5, packing layer 6, bearing layer 7, perforation tracery wall 8, active carbon adsorption district 9 and porous cellucotton regulation district 10 that are connected with road surface rainwater collecting system.
Further, in the preferred embodiment of the present invention, the water permeable bricks 3 have a visible light catalytic function, and are used for intercepting and catalytically oxidizing the refractory organic matters in the rainwater runoff of the pavement.
Further, in the preferred embodiment of the present invention, the sand cushion layer 4 is made of natural river sand having a particle size of 0.5 to 1 mm.
Further, in the preferred embodiment of the present invention, the packing layer is laid with anthracite coal of 0.5-2mm in the upper part and zeolite of 2-4mm in the lower part.
Further, in the preferred embodiment of the present invention, 8-16mm gravel is used as the supporting layer 7.
Further, in the preferred embodiment of the present invention, the activated carbon adsorption zone 9 is a honeycomb-shaped bio-char made of bio-straw.
Further, in the preferred embodiment of the present invention, the porous fibrous cotton region 10 is in communication with the exterior of the treatment system through a permeable wall 12, which is impermeable to water.
The purification and regulation system for the road surface rainwater runoff provided by the embodiment of the invention not only has a regulation and storage effect on the storm runoff, but also can solve the problem of pollution of the road surface rainwater runoff on a water body, is beneficial to in-situ and dispersive treatment of the road surface rainwater runoff, and has important popularization and application values.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and it will be apparent to those skilled in the art that other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a diagram of a system for purifying and regulating runoff of road surface rainwater provided by an embodiment of the invention;
icon: 1-a rainwater pipe connected with a road surface rainwater collecting system; 2-vegetation; 3-photocatalytic water permeable brick; 4-a sand cushion layer; 5-planting soil layer; 6-a filler layer; 7-a supporting layer; 8-perforating a tracery wall; 9-an activated carbon adsorption zone; 10-porous cellucotton regulation area; 11-impermeable wall; 12-permeable wall.
Fig. 2 shows the degradation effect of the road surface rainwater runoff purification and regulation system provided by the embodiment of the invention on pollutants;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is also to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable 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 in specific cases to those skilled in the art.
The following examples are given to illustrate the present invention.
Referring to fig. 1, a system for purifying and regulating rainwater runoff on a road surface according to an embodiment of the present invention includes: the rainwater pipe 1, the vegetation 2, the brick 3 that permeates water, the sand cushion 4, plant soil layer 5, packing layer 6, bearing layer 7, perforation tracery wall 8, active carbon adsorption district 9 and porous cellucotton regulation district 10 that are connected with road surface rainwater collecting system.
Further, in the preferred embodiment of the present invention, the water permeable bricks 3 have a visible light catalytic function, and are used for intercepting and catalytically oxidizing the refractory organic matters in the rainwater runoff of the pavement.
Further, in the preferred embodiment of the present invention, the sand cushion layer 4 is made of natural river sand having a particle size of 0.5 to 1 mm.
Further, in the preferred embodiment of the present invention, the packing layer is laid with anthracite coal of 0.5-2mm in the upper part and zeolite of 2-4mm in the lower part.
Further, in the preferred embodiment of the present invention, 8-16mm gravel is used as the supporting layer 7.
Further, in the preferred embodiment of the present invention, the activated carbon adsorption zone 9 is a honeycomb-shaped bio-char made of bio-straw.
Further, in the preferred embodiment of the present invention, the porous fibrous cotton region 10 is in communication with the exterior of the treatment system through a permeable wall 12, which is impermeable to water.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
This embodiment provides a purification and regulation system of road surface rainfall runoff, and this system includes: the rainwater pipe 1, the vegetation 2, the brick 3 that permeates water, the sand cushion 4, plant soil layer 5, packing layer 6, bearing layer 7, perforation tracery wall 8, active carbon adsorption district 9 and porous cellucotton regulation district 10 that are connected with road surface rainwater collecting system.
Further, in the preferred embodiment of the invention, the road surface rainwater runoff purification and storage system is square, the size of the system is 1.5m multiplied by 1.5m, and the system is divided into two parts of 0.9m multiplied by 1.5m and 0.6m multiplied by 1.5m by a partition wall.
Further, in the preferred embodiment of the present invention, the height of the water permeable bricks 3 to the top of the pool is 0.3 m.
Further, in the preferred embodiment of the present invention, the water permeable brick 3 has a visible light catalytic function, and has a size of 300mm × 300mm × 60mm, and is laid in two layers, and the total thickness is 0.12 m.
Further, in the preferred embodiment of the present invention, the sand cushion layer 4 is made of natural river sand with a particle size of 0.5-1mm and a thickness of 0.08 m.
Further, in the preferred embodiment of the present invention, the planting soil layer 5 is a mixture of sandy loam and anthracite coal, and the mass ratio of the sandy loam to the anthracite coal is 4: 1.
Further, in the preferred embodiment of the present invention, the packing layer 6 has a thickness of 0.5m, anthracite coal of 0.5-2mm is used for the upper layer 0.35m, and zeolite of 2-4mm is used for the lower layer 0.15 m.
Further, in the preferred embodiment of the present invention, the thickness of the supporting layer 7 is 0.15m, and 8-16mm of gravel is used.
Further, in the preferred embodiment of the present invention, the activated carbon adsorption zone 9 uses honeycomb-shaped bio-char made of bio-straw, and the laying height is 0.3 m.
Further, in the preferred embodiment of the present invention, the height of the porous fiber cotton region 10 is 0.85m, and the region is communicated with the outside of the treatment system through the permeable wall 12, and the other walls are impermeable.
Example 2
This embodiment provides a purification and regulation system of road surface rainfall runoff, and this system includes: the rainwater pipe 1, the vegetation 2, the brick 3 that permeates water, the sand cushion 4, plant soil layer 5, packing layer 6, bearing layer 7, perforation tracery wall 8, active carbon adsorption district 9 and porous cellucotton regulation district 10 that are connected with road surface rainwater collecting system.
Further, in the preferred embodiment of the invention, the road surface rainwater runoff purification and storage system is square, the size of the system is 1.5m multiplied by 1.5m, and the system is divided into two parts of 0.9m multiplied by 1.5m and 0.6m multiplied by 1.5m by a partition wall.
Further, in the preferred embodiment of the present invention, the vegetation 2 is selected from local reeds.
Further, in the preferred embodiment of the present invention, the height of the water permeable bricks 3 to the top of the pool is 0.3 m.
Further, in the preferred embodiment of the present invention, the water permeable brick 3 has a visible light catalytic function, and has a size of 300mm × 300mm × 60mm, and is laid in two layers, and the total thickness is 0.12 m.
Further, in the preferred embodiment of the present invention, the sand cushion layer 4 is made of natural river sand with a particle size of 0.5-1mm and a thickness of 0.08 m.
Further, in the preferred embodiment of the present invention, the planting soil layer 5 is a mixture of sandy loam and anthracite coal, and the mass ratio of the sandy loam to the anthracite coal is 4: 1.
Further, in the preferred embodiment of the present invention, the packing layer 6 has a thickness of 1.0m, anthracite coal of 0.5-2mm is used for the upper layer 0.7, and zeolite of 2-4mm is used for the lower layer 0.3 m.
Further, in the preferred embodiment of the present invention, the thickness of the supporting layer 7 is 0.15m, and 8-16mm of gravel is used.
Further, in the preferred embodiment of the present invention, the activated carbon adsorption zone 9 uses honeycomb-shaped bio-char made of bio-straw, and the laying height is 0.3 m.
Further, in the preferred embodiment of the present invention, the height of the porous fiber cotton region 10 is 1.35m, and the region is communicated with the outside of the treatment system through a water permeable wall 12, and the other walls are not permeable to water.
Test examples
The rainwater used in the test was initial rainwater of a certain expressway, and its properties are shown in table 1. The rainfall intensity is 20mm/h, and the rainfall duration is 3 h.
Test example test analysis was performed using example 1 and example 2 as test samples, and the results are shown in fig. 2.
TABLE 1 Properties of road surface rainwater
Referring to fig. 2, it can be seen that after the effluent is treated by the system, the removal rates of COD, TN, TP, SS and benzopyrene in the effluent are all above 70%. Particularly, after illumination, the removal rate of COD, TN and benzopyrene is obviously improved.
In summary, the system for purifying and regulating the road surface rainwater runoff provided by the embodiment of the invention not only has a regulation and storage effect on the storm rainwater runoff, but also can solve the problem of pollution of the road surface rainwater runoff on a water body, is beneficial to in-situ and dispersive treatment of the road surface rainwater runoff, and has important popularization and application values.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention.
Claims (7)
1. A system for purifying and regulating runoff of road surface rainwater, characterized in that it comprises: the rainwater pipe 1, the vegetation 2, the brick 3 that permeates water, the sand cushion 4, plant soil layer 5, packing layer 6, bearing layer 7, perforation tracery wall 8, active carbon adsorption district 9 and porous cellucotton regulation district 10 that are connected with road surface rainwater collecting system.
2. The system for purifying and regulating the runoff of pavement rainwater of claim 1 wherein said water permeable bricks 3 have a visible light catalytic function for intercepting and catalytically oxidizing the refractory organics in the runoff of pavement rainwater.
3. A system for the purification and regulation of runoff of roadway rainwater according to claim 1 wherein said sand cushion 4 is made of natural river sand having a particle size of 0.5-1 mm.
4. The system for purifying and regulating runoff rainwater on a road surface of claim 1 wherein anthracite coal is laid in an upper portion of the packing layer, and zeolite is laid in a lower portion of the packing layer, wherein the anthracite coal is 0.5-2mm in diameter, and the zeolite is 2-4mm in diameter.
5. A system for the purification and regulation of road surface runoff of rainwater according to claim 1 wherein the supporting layer 7 is made of 8-16mm gravel.
6. A system for the purification and regulation of runoff of roadway rainwater according to claim 1 wherein said activated carbon adsorption zone 9 is a honeycomb biochar made of biological straw.
7. A system for the purification and regulation of runoff rainwater from a roadway as claimed in claim 1 wherein said porous fibrous batting zone 10 is in communication with the exterior of the treatment system through a permeable wall 12, the remaining walls being impermeable to water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010755032.8A CN112110581A (en) | 2020-07-22 | 2020-07-22 | Purification and regulation system for road surface rainwater runoff |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010755032.8A CN112110581A (en) | 2020-07-22 | 2020-07-22 | Purification and regulation system for road surface rainwater runoff |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115403219A (en) * | 2022-08-25 | 2022-11-29 | 中国电建集团华东勘测设计研究院有限公司 | Ecological ditch filtering device for removing diethyltoluamide in initial rainwater runoff |
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| CN105625549A (en) * | 2016-03-16 | 2016-06-01 | 南京林业大学 | Multifunctional system for rainwater infiltration, collection and storage and purification of sponge city |
| CN206289687U (en) * | 2016-12-23 | 2017-06-30 | 浙江国科生态技术研究有限公司 | A kind of rainwater-collecting purifier |
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Cited By (1)
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| CN115403219A (en) * | 2022-08-25 | 2022-11-29 | 中国电建集团华东勘测设计研究院有限公司 | Ecological ditch filtering device for removing diethyltoluamide in initial rainwater runoff |
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