CN105756295A - Urban rainwater recycling reutilization system based on lava rocks - Google Patents
Urban rainwater recycling reutilization system based on lava rocks Download PDFInfo
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- CN105756295A CN105756295A CN201610122481.2A CN201610122481A CN105756295A CN 105756295 A CN105756295 A CN 105756295A CN 201610122481 A CN201610122481 A CN 201610122481A CN 105756295 A CN105756295 A CN 105756295A
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- 238000004064 recycling Methods 0.000 title abstract description 5
- 239000011435 rock Substances 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000001914 filtration Methods 0.000 claims abstract description 23
- 239000011159 matrix material Substances 0.000 claims abstract description 20
- 239000002245 particle Substances 0.000 claims description 48
- 239000002131 composite material Substances 0.000 claims description 18
- 238000010306 acid treatment Methods 0.000 claims description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 6
- 239000012153 distilled water Substances 0.000 claims description 5
- 238000007654 immersion Methods 0.000 claims description 5
- 235000013311 vegetables Nutrition 0.000 claims description 5
- 238000000746 purification Methods 0.000 abstract description 7
- 230000004083 survival effect Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 3
- 238000009825 accumulation Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 27
- 239000002689 soil Substances 0.000 description 18
- 239000004576 sand Substances 0.000 description 15
- 239000003795 chemical substances by application Substances 0.000 description 12
- 239000008187 granular material Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 239000005416 organic matter Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 206010016807 Fluid retention Diseases 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000011449 brick Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 229920002125 Sokalan® Polymers 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000004584 polyacrylic acid Substances 0.000 description 3
- 238000003306 harvesting Methods 0.000 description 2
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 241001464837 Viridiplantae Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000036561 sun exposure Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
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- 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
- 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
- E04D11/002—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 consisting of two or more layers, at least one of the layers permitting turfing of the roof
-
- 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
- E04D13/0404—Drainage on the roof surface
-
- 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
- E04D13/0404—Drainage on the roof surface
- E04D13/0477—Underroof drainage layers
-
- 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
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention relates to an urban rainwater recycling reutilization system based on lava rocks. The system is arranged on a plane roof of a building, and comprises a compounded vegetation region, as well as a rainwater collection region, a retaining wall and a pedestrian region which are arranged around the periphery of the compounded vegetation region in sequence from inside to outside, and a water collection region which is communicated with the rainwater collection region through a roof water collection pipe; the compounded vegetation region comprises a water separation layer, a water discharging layer, a rough filtering layer, a water accumulation layer, a planting matrix layer and a vegetation layer which are arranged in sequence from bottom to top; the water discharging layer is communicated with the water collection region through a roof water discharging pipe. Compared with the prior art, the system provided by the invention is simple in structure and convenient to construct; flood and draining waterlogging of urban buildings and purification and utilization of rainwater are combined, and the survival rate of greening vegetation of a building roof can be effectively improved; the urban rainwater recycling reutilization system has obvious economic benefits and environmental benefits.
Description
Technical field
The invention belongs to inorganic material applied technical field, relate to a kind of Rainwater Resources in Urban Area reutilization system based on pelelith.
Background technology
Aggravate along with global warming with water resource assignment deficiency, in urban precipitation type, the precipitation proportion of short time constantly rises, as easy as rolling off a log when sewerage system is perfect not cause urban waterlogging disaster in a short time, people are caused inconvenience orthobiosis.As can be seen here, solve effectiveness factors extremely urgent, but sewerage system is difficult to perfect at short notice.
Pelelith is a kind of construction material abundant in nature reserves.Feudal dynasty in China is widely used in garden setting period, then applies to flower planting, indoor and outdoor landscape design etc. in a large number at society.The good characteristics such as pelelith has that porosity is big, acid and alkali-resistance, corrosion-resistant, insulation, sound absorption.
Currently, roof greening rises in China as one upsurge, and this technology can play the effect controlled flood and drained flooded fields to a certain extent, and can effectively reduce urban heat land effect, improves resident living comfort level.But roof afforestation structure is primarily present problems with in actual design use procedure at present: 1) roof plants survival rate is low, especially needs great effort to arrange in dry season；2) rainwater of the overwhelming majority is difficult in a small amount of soil to store, and major part is discharged to underground by pipeline and runs off；3) more existing rain water storage systems are difficult to be supplied to the flushing of washroom etc. to the minimum indoor domestic water of water quality requirement owing to water storage time length, rainwater are of poor quality, water storage water quality crosses difference；4) rarely has the integrated system combined by roof greening technology with rainwater harvesting technology.
The Chinese invention patent that application number is 201410603517.X discloses a kind of Urban Roof greening flood control structure, including being arranged on the dirt bed of the setting of stacking from top to bottom, aquifer, water barrier above roofing board, wherein said aquifer is spliced to form by some water-retention bricks, wherein said water-retention brick is formed by glutinous the gluing of glue by pelelith, the thickness of described water-retention brick is 5cm, 8cm or 10cm, and described water-retention brick is combined in the ratio of 1:3 by 3-6cm and 6-12cm particle diameter stone quantity.The technical scheme of this patent disclosure is to build the aquifer of roof prevention waterlogging afforestation project with pelelith for raw material, by adding pelelith aquifer in roof greening to alleviate urban waterlogging impact, although being capable of the function of controlling flood and draining flooded fields of roof greening, but its technique effect is limited, the filtration of rainwater can not be realized and collect recycling, being further improved.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and a kind of controlling flood and draining flooded fields and rain water purification and utilization of urban architecture of can taking into account is provided, and improve the Rainwater Resources in Urban Area reutilization system based on pelelith of the survival rate of building roof afforestation vegetation.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of Rainwater Resources in Urban Area reutilization system based on pelelith, this system is arranged on the plane roof of building, described system includes composite plant cover district, the rainwater conflux district being circumferentially positioned at around composite plant cover district successively from inside to outside, barricade and pedestrian district, the gathering ground that is connected by roofing collector pipe with rainwater conflux district, described composite plant cover district includes the water barrier, drainage blanket, coarse filtration floor, aquifer, planting matrix floor and the vegetable layer that from bottom to top set gradually, and described drainage blanket is connected with gathering ground by roof drainage pipe.
Described aquifer is mixed for 3-5:2 by volume by the pelelith that the pelelith that particle diameter is 3-6mm and particle diameter are 6-12mm.
The thickness of described aquifer is 80-120mm.
Described coarse filtration layer is mixed for 2-3:1 by volume by the pelelith that the pelelith that particle diameter is 3-6mm and particle diameter are 6-12mm.
The thickness of described coarse filtration layer is 40-60mm.
Described coarse filtration layer mainly filters out the little granule in rainwater, it is prevented that the discharge outlet of blocking roof drainage pipe, reaches the effect of preliminary purification Rainwater Quality.
Described drainage blanket is laid by the haydite that particle diameter is 12-20mm and is formed.
Described haydite is the one in gravel haydite or spheroidal haydite.
Described drainage blanket Main Function is to ensure that rainwater enters the discharge outlet of roof drainage pipe smoothly, and then flows into gathering ground, it is prevented that roof ponding.
Described water barrier is waterproof roll, it is prevented that after roofing produces crack, rainwater infiltration affects inhabitation effect.
Being provided with filter bed of essence in described gathering ground, this filter bed of essence is laid by the acid treatment pelelith that particle diameter is 3-6mm and is formed.
As preferred technical scheme, described gathering ground is made up of the water storage box being connected with roof drainage pipe, and the rainwater after collection is stored in gathering ground, used by resident living.
The treatment conditions of described acid treatment pelelith are: choose the pelelith that particle diameter is 3-6mm, repeatedly clean with water, remove impurity, then be placed in the hydrochloric acid solution of 0.1-0.5mol/L immersion treatment 10-24 hour, then filter acid solution, be washed with distilled water to neutrality.
As preferred technical scheme, the gradient in described composite plant cover district is 2-3%.
Described planting matrix layer is formed by the component mix comprising following components and weight portion content: organic 20-30 part, garden mould 40-50 part, coarse sand 15-20 part.
Described planting matrix layer is possibly together with water-retaining agent, and the consumption of water-retaining agent is 30-50g/m2。
Wherein, organic matter is northeast turfy soil, and garden mould is planting technique soil, and garden mould particle diameter is less than or equal to 2cm；Coarse sand is coarse-grained soil, and the granule maximum particle diameter of coarse-grained soil is less than 50mm, and wherein the particle diameter granule content less than 40mm is no less than 85%, and coarse sand selects river sand or mountain husky；Water-retaining agent is high-hydroscopicity sodium polyacrylate or polyacrylic acid.
In present system, composite plant cover district is the major function floor of roof greening, realize the various functions such as the ecology of roof greening, view, improve the visual effect that building is overlooked simultaneously, wherein, growth that planting matrix layer is plant provides space, simultaneously can absorption portion rainwater, moisture and nutrient are provided for plant.Planting matrix layer is planted green plants, and by composite plant cover district rainwater harvest.When reality is built, composite plant cover district must carry out looking for slope by cement mortar, and the gradient is 2-3%, it is ensured that rainwater all collects, and does not produce hydrops.Rainwater conflux district is connected with gathering ground by roofing collector pipe, and rainwater, after confluxing in rainwater conflux district, is entered in gathering ground by roofing collector pipe；And the setting in pedestrian district is principally for maintaining roofing normal function and roofing maintenance of equipment offer traffic space；Rainwater after collection is stored in gathering ground and supplies used by resident living.
Compared with prior art, the invention have the characteristics that:
1) aquifer in composite plant cover district, coarse filtration floor adopt pelelith, owing to the porosity of pelelith is high, good heat insulating, heat insulation effect is played on the one hand on roof, be conducive to the energy-conserving and environment-protective of building, aquifer is positioned at the root of plant on the other hand, is conducive to keeping the temperature of plant root in the winter time, improves the survival rate of Green Roof Plants；
2) owing to arranging filter bed of essence in gathering ground, and combine with the coarse filtration floor in composite plant cover district, it is capable of the double filtration remove impurity to rainwater, improve the clean-up effect of rainwater further, ensure that the rainwater after purifying disclosure satisfy that the basic demand of reclaimed water, and then realize the collection of rainwater, purification, recycling；
3) overall system architecture is simple, constructs convenient, takes into account controlling flood and draining flooded fields and rain water purification and utilization of urban architecture, can be effectively improved the survival rate of building roof afforestation vegetation, have obvious economic benefit and environmental benefit.
Accompanying drawing explanation
Fig. 1 is present system overall structure schematic diagram；
Fig. 2 is the cross-sectional view in composite plant cover district in present system；
Fig. 3 is the cross-sectional view of gathering ground in present system；
Description of symbols in figure:
1 composite plant cover district, 2 rainwater conflux districts, 3 barricades, 4 pedestrian districts, 5 water barriers, 6 drainage blankets, 7 coarse filtration floor, 8 aquifers, 9 planting matrix floor, 10 vegetable layers, 11 gathering grounds, 12 filter bed of essence, 13 water inlets, 14 outlets.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1:
As shown in Figure 1, a kind of Rainwater Resources in Urban Area reutilization system based on pelelith, this system is arranged on the plane roof of building, and system includes composite plant cover district 1, the rainwater conflux district 2 being circumferentially positioned at around composite plant cover district 1 successively from inside to outside, barricade 3 and pedestrian district 4, the gathering ground 11 that is connected by roofing collector pipe with rainwater conflux district 2.As in figure 2 it is shown, composite plant cover district 1 includes the water barrier 5, drainage blanket 6, coarse filtration floor 7, aquifer 8, planting matrix floor 9 and the vegetable layer 10 that from bottom to top set gradually, drainage blanket 6 is connected with gathering ground 11 by roof drainage pipe.
Wherein, aquifer 8 is mixed for 3:2 by volume by the pelelith that the pelelith that particle diameter is 3mm and particle diameter are 6mm, and the thickness of aquifer 8 is 100mm；Coarse filtration layer 7 is mixed for 2:1 by volume by the pelelith that the pelelith that particle diameter is 6mm and particle diameter are 12mm, and the thickness of coarse filtration layer 7 is 50mm；Drainage blanket 6 is laid by the haydite that particle diameter is 12mm and is formed.Haydite is spheroidal haydite.Water barrier 5 is waterproof roll.
As it is shown on figure 3, be provided with filter bed of essence 12 in gathering ground 11, this filter bed of essence 12 is laid by the acid treatment pelelith that particle diameter is 3mm and is formed.Wherein, gathering ground 11 is additionally provided with the water inlet 13 being connected with drainage blanket 6 and the outlet 14 being connected with the water pipe of reclaimed water.
The treatment conditions of acid treatment pelelith are: choose the pelelith that particle diameter is 3mm, repeatedly clean with water, remove impurity, then are placed in the hydrochloric acid solution of 0.2mol/L immersion treatment 24 hours, then filter acid solution, be washed with distilled water to neutrality.
Planting matrix layer 9 is formed by the component mix comprising following components and weight portion content: organic matter 30 parts, garden mould 50 parts, coarse sand 20 parts.Planting matrix layer 9 is possibly together with water-retaining agent, and the consumption of water-retaining agent is 50g/m2.Wherein, organic matter is northeast turfy soil, and garden mould is planting technique soil, and garden mould particle diameter is less than or equal to 2cm；Coarse sand is coarse-grained soil, and the granule maximum particle diameter of coarse-grained soil is less than 50mm, and wherein the particle diameter granule content less than 40mm is no less than 85%, and coarse sand selects river sand；Water-retaining agent is high-hydroscopicity sodium polyacrylate.
When there is rainfall, rainwater planting matrix floor in composite plant cover district 19 by initial absorption after, under be seeped in aquifer 8, rainwater is fully absorbed by pelelith, after aquifer 8 water suction reaches capacity, pelelith is filled up by rainwater, and unnecessary rainwater arrives coarse filtration layer 7 through aquifer 8.In coarse filtration layer 7, relying on the hole in pelelith by the slightly solubility Impurity removal in rainwater, effectively filter out the little granule in rainwater, now in water quality, slightly solubility impurity content significantly reduces, and meets the basic demand of reclaimed water.When rainwater is through after coarse filtration layer 7, the rainwater conflux that can not be kept by aquifer 8 in drainage blanket 6, to roof drainage system, is pooled in gathering ground 11 by roof drainage pipe.The rainwater tentatively filtered in gathering ground 11 obtains the further purification of acid treatment pelelith, and in water, major part impurity is by its absorption.Rainwater after purification is stored in the reclaimed water in gathering ground 11 as resident.
After rainfall stops, the rainwater absorbed in planting matrix layer 9 is utilized by the plant in vegetable layer 10, the normal activities of supply plant.Planting matrix layer 9 is close to dried, and the rainwater that in aquifer 8, pelelith absorbs receives sun exposure and enters in planting matrix layer 9, has fed the moisture in planting matrix layer 9, and the growth for plant provides the moisture of abundance and suitable soil environment.Simultaneously as the porosity of pelelith is high, good heat insulating, playing heat insulation effect on roof on the one hand, be conducive to the energy-conserving and environment-protective of building, aquifer 8 is positioned at the root of plant on the other hand, be conducive to keeping the temperature of plant root in the winter time, improve the survival rate of Green Roof Plants.
Embodiment 2:
In the present embodiment, aquifer 8 is mixed for 5:2 by volume by the pelelith that the pelelith that particle diameter is 6mm and particle diameter are 12mm, and the thickness of aquifer 8 is 120mm；Coarse filtration layer 7 is mixed for 3:1 by volume by the pelelith that the pelelith that particle diameter is 6mm and particle diameter are 12mm, and the thickness of coarse filtration layer 7 is 60mm；Drainage blanket 6 is laid by the haydite that particle diameter is 20mm and is formed.
In gathering ground 11, filter bed of essence 12 is laid by the acid treatment pelelith that particle diameter is 6mm and is formed.Wherein, the treatment conditions of acid treatment pelelith are: choose the pelelith that particle diameter is 6mm, repeatedly clean with water, remove impurity, then are placed in the hydrochloric acid solution of 0.1mol/L immersion treatment 24 hours, then filter acid solution, be washed with distilled water to neutrality.
Planting matrix layer 9 is formed by the component mix comprising following components and weight portion content: organic matter 20 parts, garden mould 40 parts, coarse sand 15 parts.Planting matrix layer 9 is possibly together with water-retaining agent, and the consumption of water-retaining agent is 30g/m2.Wherein, organic matter is northeast turfy soil, and garden mould is planting technique soil, and garden mould particle diameter is less than or equal to 2cm；Coarse sand is coarse-grained soil, and the granule maximum particle diameter of coarse-grained soil is less than 50mm, and wherein the particle diameter granule content less than 40mm is no less than 85%, and coarse sand selects mountain husky；Water-retaining agent is polyacrylic acid.
All the other are with embodiment 1.
Embodiment 3:
In the present embodiment, aquifer 8 is mixed for 4:2 by volume by the pelelith that the pelelith that particle diameter is 5mm and particle diameter are 8mm, and the thickness of aquifer 8 is 80mm；Coarse filtration layer 7 is mixed for 2:1 by volume by the pelelith that the pelelith that particle diameter is 4mm and particle diameter are 10mm, and the thickness of coarse filtration layer 7 is 40mm；Drainage blanket 6 is laid by the haydite that particle diameter is 15mm and is formed.Haydite is gravel haydite.
In gathering ground 11, filter bed of essence 12 is laid by the acid treatment pelelith that particle diameter is 4mm and is formed.Wherein, the treatment conditions of acid treatment pelelith are: choose the pelelith that particle diameter is 4mm, repeatedly clean with water, remove impurity, then are placed in the hydrochloric acid solution of 0.5mol/L immersion treatment 10 hours, then filter acid solution, be washed with distilled water to neutrality.
Planting matrix layer 9 is formed by the component mix comprising following components and weight portion content: organic matter 24 parts, garden mould 48 parts, coarse sand 18 parts.Planting matrix layer is possibly together with water-retaining agent, and the consumption of water-retaining agent is 42g/m2。
Wherein, organic matter is northeast turfy soil, and garden mould is planting technique soil, and garden mould particle diameter is less than or equal to 2cm；Coarse sand is coarse-grained soil, and the granule maximum particle diameter of coarse-grained soil is less than 50mm, and wherein the particle diameter granule content less than 40mm is no less than 85%, and coarse sand selects river sand；Water-retaining agent is polyacrylic acid.
All the other are with embodiment 1.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and use invention.These embodiments obviously easily can be made various amendment by person skilled in the art, and General Principle described herein is applied in other embodiments without through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, those skilled in the art's announcement according to the present invention, the improvement made without departing from scope and amendment all should within protection scope of the present invention.
Claims (10)
1. the Rainwater Resources in Urban Area reutilization system based on pelelith, this system is arranged on the plane roof of building, it is characterized in that, described system includes composite plant cover district (1), it is circumferentially positioned at rainwater conflux district (2) around of composite plant cover district (1) from inside to outside successively, barricade (3) and pedestrian district (4), by the gathering ground (11) that roofing collector pipe is connected with rainwater conflux district (2), described composite plant cover district (1) includes the water barrier (5) from bottom to top set gradually, drainage blanket (6), coarse filtration layer (7), aquifer (8), planting matrix layer (9) and vegetable layer (10), described drainage blanket (6) is connected with gathering ground (11) by roof drainage pipe.
2. a kind of Rainwater Resources in Urban Area reutilization system based on pelelith according to claim 1, it is characterized in that, described aquifer (8) is mixed for 3-5:2 by volume by the pelelith that the pelelith that particle diameter is 3-6mm and particle diameter are 6-12mm.
3. a kind of Rainwater Resources in Urban Area reutilization system based on pelelith according to claim 3, it is characterised in that the thickness of described aquifer (8) is 80-120mm.
4. a kind of Rainwater Resources in Urban Area reutilization system based on pelelith according to claim 1, it is characterized in that, described coarse filtration layer (7) is mixed for 2-3:1 by volume by the pelelith that the pelelith that particle diameter is 3-6mm and particle diameter are 6-12mm.
5. a kind of Rainwater Resources in Urban Area reutilization system based on pelelith according to claim 4, it is characterised in that the thickness of described coarse filtration layer (7) is 40-60mm.
6. a kind of Rainwater Resources in Urban Area reutilization system based on pelelith according to claim 1, it is characterised in that described drainage blanket (6) is laid by the haydite that particle diameter is 12-20mm and formed.
7. a kind of Rainwater Resources in Urban Area reutilization system based on pelelith according to claim 6, it is characterised in that described haydite is the one in gravel haydite or spheroidal haydite.
8. a kind of Rainwater Resources in Urban Area reutilization system based on pelelith according to claim 1, it is characterised in that described water barrier (5) is waterproof roll.
9. a kind of Rainwater Resources in Urban Area reutilization system based on pelelith according to any one of claim 1 to 8, it is characterized in that, being provided with filter bed of essence (12) in described gathering ground (11), this filter bed of essence (12) is laid by the acid treatment pelelith that particle diameter is 3-6mm and is formed.
10. a kind of Rainwater Resources in Urban Area reutilization system based on pelelith according to claim 9, it is characterized in that, the treatment conditions of described acid treatment pelelith are: choose the pelelith that particle diameter is 3-6mm, repeatedly clean with water, remove impurity, it is placed in the hydrochloric acid solution of 0.1-0.5mol/L again immersion treatment 10-24 hour, then filters acid solution, be washed with distilled water to neutrality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610122481.2A CN105756295B (en) | 2016-03-04 | 2016-03-04 | A kind of Rainwater Resources in Urban Area reutilization system based on pelelith |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610122481.2A CN105756295B (en) | 2016-03-04 | 2016-03-04 | A kind of Rainwater Resources in Urban Area reutilization system based on pelelith |
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| CN105756295A true CN105756295A (en) | 2016-07-13 |
| CN105756295B CN105756295B (en) | 2018-05-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN106223552A (en) * | 2016-07-21 | 2016-12-14 | 成都华荣集成房屋有限公司 | A kind of flat-head type movable dwellings |
| CN106390911A (en) * | 2016-08-22 | 2017-02-15 | 上海融扬生物技术有限公司 | Method for preparing volcanic stone adsorbent and method for enriching catechin antioxidants |
| CN106390911B (en) * | 2016-08-22 | 2019-10-22 | 上海融扬生物技术有限公司 | The method for preparing the method for pelelith adsorbent and being enriched with catechin antioxidant |
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| CN105756295B (en) | 2018-05-08 |
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