CN109972795A - A kind of Green Roof reducing pollutant concentration in rainfall runoff - Google Patents
A kind of Green Roof reducing pollutant concentration in rainfall runoff Download PDFInfo
- Publication number
- CN109972795A CN109972795A CN201910288861.7A CN201910288861A CN109972795A CN 109972795 A CN109972795 A CN 109972795A CN 201910288861 A CN201910288861 A CN 201910288861A CN 109972795 A CN109972795 A CN 109972795A
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- Prior art keywords
- water
- roof
- hypothallus
- runoff
- pollutant concentration
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- 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.)
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- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 40
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 235000013311 vegetables Nutrition 0.000 claims abstract description 4
- 229910021536 Zeolite Inorganic materials 0.000 claims description 13
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 13
- 239000010457 zeolite Substances 0.000 claims description 13
- 230000000813 microbial effect Effects 0.000 claims description 10
- 239000011491 glass wool Substances 0.000 claims description 9
- 239000002689 soil Substances 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 8
- 239000010455 vermiculite Substances 0.000 claims description 8
- 229910052902 vermiculite Inorganic materials 0.000 claims description 8
- 235000019354 vermiculite Nutrition 0.000 claims description 8
- 239000004746 geotextile Substances 0.000 claims description 7
- 239000003415 peat Substances 0.000 claims description 7
- 239000010451 perlite Substances 0.000 claims description 7
- 235000019362 perlite Nutrition 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 230000008635 plant growth Effects 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000011534 incubation Methods 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 239000005871 repellent Substances 0.000 claims description 3
- 230000003319 supportive effect Effects 0.000 claims description 2
- 230000001934 delay Effects 0.000 abstract description 6
- 238000005520 cutting process Methods 0.000 abstract description 3
- 239000011159 matrix material Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000012913 prioritisation Methods 0.000 description 8
- 241000196324 Embryophyta Species 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 241001116389 Aloe Species 0.000 description 1
- 241000219357 Cactaceae Species 0.000 description 1
- OKTJSMMVPCPJKN-OUBTZVSYSA-N Carbon-13 Chemical compound [13C] OKTJSMMVPCPJKN-OUBTZVSYSA-N 0.000 description 1
- 241000189144 Sedum lineare Species 0.000 description 1
- 241000473353 Sedum spathulifolium Species 0.000 description 1
- 235000011399 aloe vera Nutrition 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
- A01G24/12—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material containing soil minerals
- A01G24/13—Zeolites
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
- A01G24/12—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material containing soil minerals
- A01G24/15—Calcined rock, e.g. perlite, vermiculite or clay aggregates
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/28—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing peat, moss or sphagnum
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/40—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure
- A01G24/44—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure in block, mat or sheet form
- A01G24/46—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure in block, mat or sheet form multi-layered
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
-
- 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
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/254—Roof garden systems; Roof coverings with high solar reflectance
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/32—Roof garden systems
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental Sciences (AREA)
- Inorganic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Soil Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses the Green Roofs that one kind can reduce pollutant concentration in rainfall runoff, it is intended to provide a kind of Green Roof that can improve Runoff, improve shut off ability and water-holding capacity comprising structure sheaf, waterproof layer, stopping area, water-storage-drainage layer, filter layer, hypothallus and vegetation.Rainwater enters hypothallus from vegetable layer, the function that hypothallus and vegetation provide purifying rainwater water quality, delay contributing time, delay runoff peak value, cutting down roof runoff, then retains pollutant through filter layer, into water-storage-drainage layer, when rainwater run up to it is a certain amount of be discharged through overflow pipe, generate roof runoff.The present invention has the function of purifying rainwater water quality, delays contributing time, delays runoff peak value, abatement roof runoff and landscape.
Description
Technical field
The invention belongs to the low influence development fields in sponge city, and in particular to a kind of collection purifying rainwater water quality delays to produce and flow
Time delays runoff peak value, the abatement multi-functional Green Roof being integrated such as roof runoff and landscape.
Background technique
In recent years, with the continuous propulsion of China's urbanization, Permeable stratum area increases sharply, and when rainfall increases, rainwater is not
It can be discharged in time, to cause urban waterlogging disaster, people's property safety be seriously endangered, simultaneously because urban road is generally existing
Seriously polluted problem, the runoff that rainfall generates after washing away road surface include a large amount of polluter especially in initial rainwater, if not
Processing is added just to be discharged into river, it will the problems such as causing water pollution, rainwater resource waste, urban heat land effect aggravation.Sponge city
City is new generation of city storm water man- agement concept, refers to that city is adapting to environmental change and reply rainwater bring natural calamity etc.
Aspect has good " elasticity ".
Rain drop erosion ground generates runoff pollution, but since pollution level is lighter, can be used as urban afforestation, punching after processing
Water source or recharge groundwater of brush road etc..The major technique collected in sponge urban construction at present to rainwater purification has: roof
Rainwater purification collection, urban road rainwater-collecting, urban green space park rainwater recycle.Green Roof is exactly roof rain water purification
The Typical Representative of collection.Green Roof has purifying rainwater water quality, delays contributing time, delays runoff peak value, abatement roof diameter
The function of stream.The development of Green Roof has good social benefit and environmental ecological benefit, adapts to showing for sponge urban construction
Shape and demand meet the requirement of sustainable development, the effect for playing and meaning far-reaching of getting along amiably and peacefully to Man & Nature.
Current Green Roof is polluted since rain drop erosion causes roof Runoff contaminants concentration to increase with microbial film, once
Heavy rainfall occurs, the ability decline of shutting off of Green Roof, and roof load is small.CN102383533A discloses a kind of Green Roof,
Although it is contemplated that heavy rain produces the regulation of stream, but effect of shutting off is not fully up to expectations, and designs too simple.CN105781031A is announced
A kind of Green Roof does not account for the raising of pollutant concentration caused by rain drop erosion, does not have although water storage effect is preferable
Preferable ecological benefits.The invention patent solves the problems, such as that both the above patent exists, have good purifying rainwater water quality,
Delay contributing time, delay runoff peak value, abatement roof runoff and landscape etc. multi-functional.
Summary of the invention
The present invention is for prior art roof Runoff contaminants excessive concentration, microbial film is seriously polluted, Green Roof is cut
It flows that effect is poor, the defects of roof load is small, the green of pollutant concentration in rainfall runoff can be reduced the present invention provides a kind of
Color roof.Its purpose is to provide one kind can reduce pollutant concentration in rainfall runoff, reduces microbial film pollution, raising green
Roof shut off ability and reduce roof load method.
To achieve the above object, the present invention is achieved through the following technical solutions, and one kind can reduce dirty in rainfall runoff
The Green Roof for contaminating object concentration, including the structure sheaf to play a supportive role for covering roof；It is equipped with and uses on the structure sheaf top
The Green Roof that centrifugally glass-wool surrounds；
The Green Roof is from the bottom up successively are as follows: waterproof layer, stopping area, water-storage-drainage layer, filter layer and for planting vegetation
Hypothallus；
Porous disc is installed between the filter layer and hypothallus；The porous disc is equipped with several permeable holes；
The overflow pipe being connected with water-storage-drainage layer is equipped on the centrifugally glass-wool side wall；The overflow pipe is placed with for net
Change the active carbon of rainwater.
Rainwater enters hypothallus from vegetation, and hypothallus and vegetation provide purifying rainwater water quality, delay contributing time, delay diameter
Stream peak value, the function of cutting down roof runoff, then retain pollutant through filter layer, into water-storage-drainage layer, when rainwater runs up to one
It is quantitative to be discharged through overflow pipe, generate roof runoff.
Centrifugally glass-wool has good anti-seepage effect, and plastics are light, resistance to low temperature is good, manufacturing cost is low, fits
, low temperature environment small for roof load and economical and practical requirement；Using centrifugally glass-wool, thermal coefficient is low, and hydroscopicity is low,
With good acoustical absorption heat preserving heat insulation and mineral wool is soft, fiber is fine, skin will not be stimulated in construction, to people's ratio
It is more friendly.
A kind of prioritization scheme of the present invention for reducing the Green Roof of pollutant concentration in rainfall runoff: the base
Matter layer uses palace format structure, and the vegetable layer planted on hypothallus can effectively reduce roof load, meanwhile, it can be according to season
Plant is replaced, diversity of organism is increased.
A kind of prioritization scheme of the present invention for reducing the Green Roof of pollutant concentration in rainfall runoff: described anti-
Water layer brush in structure sheaf using water-repellent paint；The stopping area uses PE film waterproof roll.
A kind of prioritization scheme of the present invention for reducing the Green Roof of pollutant concentration in rainfall runoff: described to overflow
Flow tube center line is located at the 1/2-2/3 of water-storage-drainage layer height, and water-storage-drainage layer is divided into water storage part and water discharging part, wherein
Part water can be in store by water storage part, sufficient moisture content and oxygen be provided to plant growth, water discharging part can ensure that will be more
Remaining water is quickly drained, and light and incubation and thermal insulation function is strong.
A kind of prioritization scheme of the present invention for reducing the Green Roof of pollutant concentration in rainfall runoff: the mistake
It is geotextiles that filtering layer, which is by top, and lower part is sponge, and the two is formed by stacking；
The geotextiles, can prevent pollutant or substrate clogging sponge, and whole water-holding capacity can be improved in the sponge.
A kind of prioritization scheme of the present invention for reducing the Green Roof of pollutant concentration in rainfall runoff: the base
Matter layer is to be mixed by vermiculite, peat soil, perlite and zeolite according to mass ratio for 1:1:1:1, is highly 50-
100mm；Vermiculite, peat soil, perlite, zeolite are light, have preferable water absorbing properties, absorption property is excellent, can securely adsorb
Pollutant, ion in rainwater reduce the pollutant concentration in rainfall runoff and reduce microbial film pollution, while zeolite has
Functions/drying can play desiccation to hypothallus, hypothallus is made preferably to play ability of shutting off.
A kind of prioritization scheme of the present invention for reducing the Green Roof of pollutant concentration in rainfall runoff: the plant
By environment big, low temperature according to roof wind, drought-resistant, low temperature resistant succulent is selected.
A kind of prioritization scheme of the present invention for reducing the Green Roof of pollutant concentration in rainfall runoff: described
It carries out levelling on structure sheaf, the gradient of 1-2% is formed, to prevent roof ponding.
A kind of prioritization scheme of the present invention for reducing the Green Roof of pollutant concentration in rainfall runoff: the base
Grid is placed on matter layer.
Function realizing method: 1, improve Runoff: 1. energy dissipating: in the case where not influencing plant growth, on vegetation
Increase the device for being similar to grid or rain perforaled strainer, material uses plastics, can effectively reduce rainwater to soil and
Matrix is washed away, and be can effectively reduce pollutant concentration in rainfall runoff and is reduced microbial film pollution；2. matrix selects: selecting and inhale
The matrix such as the stronger vermiculite of attached property, zeolite, can securely adsorb pollutant, the ion in rainwater, reduce the pollution in rainfall runoff
Object concentration and reduction microbial film pollution；Overflow pipe: at overflow pipe entrance, select active carbon to amounts of residual contamination or ion into
Row absorption reduces the pollutant concentration in rainfall runoff and reduces microbial film pollution.
2, improve ability of shutting off: 1. matrix forms: selecting the matrix such as vermiculite, peat soil, perlite, zeolite, has preferable
Water absorbing properties, the ability of shutting off can be improved；2. water content of substrate: selecting this matrix of zeolite, zeolite has functions/drying, can be with
A degree of drying is carried out to matrix, improves ability of shutting off；Vegetation combination: the combination of various plants is selected, can be effectively improved
Shut off effect.
3, reduce roof load: in addition to material selection light material, vegetable layer and hypothallus use palace format structure, can have
Effect reduces roof load, meanwhile, plant can be replaced according to season, increase diversity of organism.
Advantages of the present invention: 1, improve Runoff；2, ability of shutting off is improved；3, roof load is reduced.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is matrix schematic diagram of a layer structure of the present invention；
Fig. 3 is porous disc structural schematic diagram of the present invention；
In figure: 1- structure sheaf, 2- waterproof layer, 3- stopping area, 4- water-storage-drainage layer, 5- discard sponge, 6- geotextiles, 7- filter layer,
8- hypothallus, 9- porous disc, 10- permeable hole, 11- vegetation, 12- overflow pipe, 13- active carbon, 14- centrifugally glass-wool, 15- lattice
Grid.
Specific embodiment
Below with reference to embodiment, the present invention will be further described.It will be apparent to those skilled in the art that embodiment is only
Present invention specific implementation is illustrated, is not to limit the scope of protection of the invention.
Embodiment 1
Referring to Fig.1, a kind of Green Roof reducing pollutant concentration in rainfall runoff, including support work is played for covering roof
Structure sheaf 1；The Green Roof surrounded with centrifugally glass-wool 14 is equipped on 1 top of structure sheaf；
The Green Roof is from the bottom up successively are as follows: waterproof layer 2, stopping area 3, water-storage-drainage layer 4, filter layer 7 and for planting
The hypothallus 8 of vegetation 11；
Porous disc 9 is installed between the filter layer 7 and hypothallus 8；The porous disc 9 is equipped with several permeable holes 10；
The overflow pipe 12 being connected with water-storage-drainage layer 4 is equipped on 14 side wall of centrifugally glass-wool；The overflow pipe 12 is placed
There is the active carbon 13 for purifying rainwater.
Referring to Fig. 2, the hypothallus 8 uses palace format structure, and the vegetation planted on hypothallus 8 can effectively reduce room
Top loading carries, meanwhile, plant can be replaced according to season, increase diversity of organism.
The waterproof layer 2 brush in structure sheaf 1 using water-repellent paint；The stopping area 3 uses PE film waterproof
Coiled material.
12 center line of overflow pipe is located at the 1/2-2/3 of 4 height of water-storage-drainage layer, and water-storage-drainage layer 4 is divided for water storage portion
Point and water discharging part, wherein part water can be in store by water storage part, and sufficient moisture content and oxygen are provided to plant growth,
Water discharging part, which can ensure that, quickly drains superfluous water, and light and incubation and thermal insulation function is strong.
The filter layer 7 be by top be geotextiles 6, lower part be sponge 5, the two is formed by stacking；
The geotextiles 6, can prevent pollutant or substrate clogging sponge, and whole water-holding capacity can be improved in the sponge 5.
The hypothallus 8 be by vermiculite, peat soil, perlite and zeolite, according to mass ratio be 1:1:1:1 mix and
At being highly 50-100mm；Vermiculite, peat soil, perlite, zeolite are light, have preferable water absorbing properties, and absorption property is excellent
It is different, pollutant, ion in rainwater can be securely adsorbed, the pollutant concentration in rainfall runoff is reduced and reduces microbial film dirt
Dye, while zeolite has functions/drying, can play desiccation to hypothallus 8, hypothallus 8 is made preferably to play the energy that shuts off
Power.
The vegetation 11 big, low temperature environment according to roof wind, selects drought-resistant, low temperature resistant succulent；It may be selected
The combination of the various plants such as cactus, Sedum spathulifolium, sedum lineare, aloe.
It is carried out on the structure sheaf 1 levelling, the gradient of 1-2% is formed, to prevent roof ponding.
Grid 15 is placed on the hypothallus 8.Surface can carry out energy dissipating using grid 15, reduce rainwater to soil and
Matrix is washed away, and be can effectively reduce pollutant concentration in rainfall runoff and is reduced microbial film pollution.
Rainwater enters hypothallus from vegetation 11, and hypothallus and vegetation 11 provide purifying rainwater water quality, delay contributing time, prolong
Slow runoff peak value, the function of cutting down roof runoff, then retain pollutant through filter layer, into water-storage-drainage layer 4, when rainwater accumulates
It is discharged to a certain amount of through overflow pipe 12, generates roof runoff.
Claims (9)
1. one kind can reduce the Green Roof of pollutant concentration in rainfall runoff, including the knot to play a supportive role for covering roof
Structure layer (1)；It is characterized by: being equipped with the Green Roof surrounded with centrifugally glass-wool (14) on the structure sheaf (1) top；
The Green Roof is from the bottom up successively are as follows: waterproof layer (2), stopping area (3), water-storage-drainage layer (4), filter layer (7) and
For planting the hypothallus (8) of vegetation (11)；
Porous disc (9) are installed between the filter layer (7) and hypothallus (8)；The porous disc (9) is equipped with several thoroughly
Water hole (10)；
The overflow pipe (12) being connected with water-storage-drainage layer (4) is equipped on the centrifugally glass-wool (14) side wall；The overflow pipe
(12) it is placed with the active carbon (13) for purifying rainwater.
2. the Green Roof that one kind according to claim 1 can reduce pollutant concentration in rainfall runoff, it is characterised in that:
The hypothallus (8) uses palace format structure, and the vegetable layer planted on hypothallus (8) can effectively reduce roof load, together
When, plant can be replaced according to season, increase diversity of organism.
3. the Green Roof that one kind according to claim 1 can reduce pollutant concentration in rainfall runoff, it is characterised in that:
The waterproof layer (2) brush in structure sheaf (1) using water-repellent paint；The stopping area (3) uses PE film waterproof roll
Material.
4. the Green Roof that one kind according to claim 1 can reduce pollutant concentration in rainfall runoff, it is characterised in that:
Overflow pipe (12) center line is located at the 1/2-2/3 of water-storage-drainage layer (4) height, and water-storage-drainage layer (4) is divided into water storage part
And water discharging part, wherein part water can be in store by water storage part, and sufficient moisture content and oxygen, row are provided to plant growth
Water section, which can ensure that, quickly drains superfluous water, and light and incubation and thermal insulation function is strong.
5. the Green Roof that one kind according to claim 1 can reduce pollutant concentration in rainfall runoff, it is characterised in that:
The filter layer (7) be by top be geotextiles (6), lower part be sponge (5), the two is formed by stacking；
The geotextiles (6), can prevent pollutant or substrate clogging sponge, and whole water storage energy can be improved in the sponge (5)
Power.
6. one kind according to claim 1-5 can reduce the Green Roof of pollutant concentration in rainfall runoff,
Be characterized in that: the hypothallus (8) is by vermiculite, peat soil, perlite and zeolite, is 1:1:1:1 mixing according to mass ratio
It forms, is highly 50-100mm；Vermiculite, peat soil, perlite, zeolite are light, have preferable water absorbing properties, and absorption property is excellent
It is different, pollutant, ion in rainwater can be securely adsorbed, the pollutant concentration in rainfall runoff is reduced and reduces microbial film dirt
Dye, while zeolite has functions/drying, can play desiccation to hypothallus (8), play hypothallus (8) preferably and shut off
Ability.
7. the Green Roof that one kind according to claim 6 can reduce pollutant concentration in rainfall runoff, it is characterised in that:
The vegetation (11) big, low temperature environment according to roof wind, selects drought-resistant, low temperature resistant succulent.
8. one kind according to claim 1-5 can reduce the Green Roof of pollutant concentration in rainfall runoff,
It is characterized in that: being carried out on the structure sheaf (1) levelling, the gradient of 1-2% is formed, to prevent roof ponding.
9. the Green Roof that one kind according to claim 8 can reduce pollutant concentration in rainfall runoff, it is characterised in that:
Grid (15) are placed on the hypothallus (8).
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| CN110644685A (en) * | 2019-09-27 | 2020-01-03 | 长沙理工大学 | Rainwater collection roof based on water-bearing stratum imitation idea |
| CN110853484A (en) * | 2019-11-05 | 2020-02-28 | 西安科技大学 | Green roof function demonstration model in sponge city |
| CN110915611A (en) * | 2019-12-05 | 2020-03-27 | 徐州工程学院 | Automatic irrigation system for green plant land below urban viaduct |
| CN112144765A (en) * | 2020-09-28 | 2020-12-29 | 上海交通大学 | Green roof and rainwater purification coupled system for sponge city construction |
| CN113958069A (en) * | 2021-10-11 | 2022-01-21 | 广西大学 | Greening roof structure based on rapid drainage of ceramsite material and upward water supply of cotton core material |
| CN115299319A (en) * | 2022-08-11 | 2022-11-08 | 南昌大学 | Green roof improvement matrix layer and preparation method thereof |
| CN115405054A (en) * | 2022-09-09 | 2022-11-29 | 北京建筑大学 | Green roof system of matrix normal position restoration |
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| CN113958069A (en) * | 2021-10-11 | 2022-01-21 | 广西大学 | Greening roof structure based on rapid drainage of ceramsite material and upward water supply of cotton core material |
| CN115299319A (en) * | 2022-08-11 | 2022-11-08 | 南昌大学 | Green roof improvement matrix layer and preparation method thereof |
| CN115405054A (en) * | 2022-09-09 | 2022-11-29 | 北京建筑大学 | Green roof system of matrix normal position restoration |
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