CN109399800A - A kind of rivers and lakes runoff pollution step control system - Google Patents
A kind of rivers and lakes runoff pollution step control system Download PDFInfo
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- CN109399800A CN109399800A CN201811477607.3A CN201811477607A CN109399800A CN 109399800 A CN109399800 A CN 109399800A CN 201811477607 A CN201811477607 A CN 201811477607A CN 109399800 A CN109399800 A CN 109399800A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 238000000746 purification Methods 0.000 claims abstract description 50
- 238000001914 filtration Methods 0.000 claims abstract description 41
- 239000002023 wood Substances 0.000 claims abstract description 23
- 238000007667 floating Methods 0.000 claims description 12
- 239000004746 geotextile Substances 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 11
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000010354 integration Effects 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 81
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
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- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Revetment (AREA)
- Water Treatment By Sorption (AREA)
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
Abstract
The invention belongs to field of environment engineering technology, and in particular to a kind of rivers and lakes runoff pollution step control system, including first rain filter the canal that shuts off, multistage plant filtration, purification band, ecological wood revetment and underwater soft fence；First rain filters the side near water that the canal that shuts off is set to waterfront line driveway or waterfront informant trade, and the side near water that first rain filters the canal that shuts off is provided with multistage plant filtration, purification band；Multistage plant filtration, purification band includes sequentially connected ground cover plant filter bag, wet plant filter bag, emergent aquactic plant purification zone and submerged plant purification zone, ecological wood revetment is provided between wet plant filter bag and emergent aquactic plant purification zone, submerged plant purification zone is equipped with underwater soft fence.Runoff pollution step control system in rivers and lakes provided by the invention, targetedly control effectively and shuts off to the pollution of initial rainwater, pollution of the rainwash to water body greatly reduces, and integration is high, at low cost, operation maintenance is easy.
Description
Technical field
The invention belongs to field of environment engineering technology, and in particular to a kind of rivers and lakes runoff pollution step control system,
It is related to the control source in a kind of water environment comprehensive treatment and cuts dirty technical field.
Background technique
Runoff pollution be it is the most serious in non-point pollution, the generation of pollution has randomness and pollutant
The huge fluctuation of total emission volumn, in the case where growing day by day to environmental requirement, the control that it is polluted in countries in the world is all got over
More pay attention to, and puts into huge human and material resources and carried out a large amount of research.It is continuous with Urbanization in China
Accelerate, the expansion of city scale, the change of land use, a large amount of waterproof earth's surface occurs, significantly change the water in region
Literary process.These change while increasing flow path surface, also lead to pollution of the rainwash to water body.Runoff pollution
Urban runoff pollution, agricultural production pollution, rural area Animal manure loss, forest zone earth's surface can be divided by the source difference of pollutant
Runoff pollution, mining area and the pollution of construction site rainwash and other pollutions.Pollutant containing gas chromatography in rainwash,
Suspended particulate substance, nutritive salt, heavy metal and toxic organic pollutant etc..
The characteristics of being formed according to Modes for Urban Stormwater Runoff Pollution and its relationship with drainage system, corresponding control technology can letters
Singly it is divided into the three types such as source reduction, pipeline control, end-o f-pipe -control.Traditional urban rainwater management and harnessing project in China
In, Best Management Practices (BMP) technologies such as sedimentation basin, leakage hole, porous pavements, tank are mostly used, but can not be from source
Upper reduction urban runoff pollution.Low influence exploitation (LID) technology is reached by dispersion, small-scale source controlling mechanism
Control to runoff caused by heavy rain and pollutant, and synthesis is subtracted using infiltrating, filtering, evaporating and storing the various ways such as stream
Few runoff displacement, makes development area as far as possible close to natural hydrologic cycle, and urban runoff pollution is reduced from source.Common
LID measure has biological delaying basin, Vegetative Filter Strips, rainwater-collecting slot etc..But the generally existing technologies of technology many at present is arranged
Apply the problems such as single, investment cost is high, operation maintenance is difficult.Such as the patent of 103938518 A of Publication No. CN discloses one
Kind road runoff contamination control greening system construction method, using multiple interception polluter, but cutting for first order use is dirty
It is filled with the flyash and sandstone filler of a large amount of small particles in greenbelt, is having good regulation effect using initial stage, but very
Filtering function can be lost because filler is stifled by dirt fastly, but also will form anaerobism space, make environmental degradation；Publication No. CN
The patent of 207546007 U discloses a kind of rainfall runoff and adjusts and contaminant removal system, using dynamic filtration separation system,
High treating effect, but have a large amount of mechanical transmission mechanism and electric component, it is easy to occur in the environment of waterfront side humidity
Failure；The patent of 207228302 U of Publication No. CN discloses a kind of dirty facility of rainwater runoff pollution section, using unpowered knot
Structure removes pollutant using hydraulic cyclone, and rainwater water is generally uneven, therefore the facility is only capable of in the rainfall section of very little
There is preferable contamination control effect, and that there are technical measures is single, needs a large amount of reinforced concrete works, investment is high, with
The uncoordinated problem of environment.
Summary of the invention
That in order to overcome the shortcomings of the prior art described above, the object of the present invention is to provide a kind of integrations is high, at low cost,
The rivers and lakes runoff pollution step control system of operation maintenance simplicity targetedly carries out the pollution of initial rainwater effective
It controls and shuts off, pollution of the rainwash to water body greatly reduces.
To achieve the above object, the technical scheme is that a kind of rivers and lakes runoff pollution step control system, packet
It includes just rain and filters the canal that shuts off, multistage plant filtration, purification band, ecological wood revetment and underwater soft fence；The just rain filtering is cut
Stream canal is set to the waterfront line driveway in river or lake or the side near water on waterfront informant trade, and the just rain filters the canal that shuts off
Side is provided with multistage plant filtration, purification band near water；The multistage plant filtration, purification band includes sequentially connected ground cover plant mistake
Strainer, wet plant filter bag, emergent aquactic plant purification zone and submerged plant purification zone, the ground cover plant filter bag is close to described
First rain filters canal setting of shutting off, and is provided with ecological wood between the wet plant filter bag and the emergent aquactic plant purification zone and refutes
Bank, the submerged plant purification zone are equipped with underwater soft fence.
Further, it is described just rain filtering shut off canal top be equipped with rain grid, adjacent two of the rain grid
Spacing between grate item is 20~30mm.
Further, cobblestone, 35 ~ 55mm of partial size of the cobblestone, the goose are equipped on the rain grid
The laying depth of cobble is 0.1~0.15m.
Further, it is described just rain filtering shut off canal canal bottom and canal wall on be respectively provided with permeable hole, the axis of the permeable hole
It is straight to center line canal wall corresponding with the permeable hole or canal dolly.
Further, the cross section that the just rain filters canal bottom of shutting off is arc.
Further, the ground cover plant filter bag is layed on slope, and the gradient of slope is 3% ~ 10%.
Further, the ecological wood revetment includes the timber being arranged along water surface curve；Described timber a part is buried
In underground, another part bassets.
Further, the back side of the ecological wood revetment is equipped with filtering geotextiles.
Further, the underwater soft fence includes fence mesh and spud pile；It exposes the surface at the top of the spud pile, bottom
Portion is inserted into water-bed mud；The bottom of the fence mesh and the bottom of spud pile connect, the top of the fence mesh and institute
State the top connection of spud pile.
Further, the top of the fence mesh is equipped with buoyance module, and the buoyancy group includes being connected by plastic ties
Several floating balls.
Compared with prior art, the invention has the following advantages:
(1) rivers and lakes runoff pollution step control system provided by the invention filters the canal that shuts off, multistage plant mistake by first rain
It filters multiple systems such as purification zone, ecological wood revetment and underwater soft fence to organically combine, to the rainwash in river or lake
Pollution carries out multisystem, the step Collaborative Control of various dimensions, has targetedly carried out effective control to the pollution of initial rainwater
With shut off, pollution of the rainwash to water body greatly reduces, while refuting by the ecological niche and ecological wood of various plants
The building of bank is also greatly improved on landscape；
(2) present invention employs the controls of the system of more steps, various dimensions: using ten multistage step pollution control systems, and
And multiple dimensions such as be related to physics, plant, biology, treatment effeciency is high, and effect fraction is high；
(3) removal rate of the rainwash pollutant of runoff pollution step control system in rivers and lakes provided by the invention is high: COD
(COD) removal rate can be to 45 ~ 70%, BOD5(five-day BOD) removal rate can be to 55 ~ 75%, SS(suspended matter)
Removal rate can be to 65 ~ 90%, NH4- N(ammonia nitrogen) removal rate can be to 30 ~ 50%, TN(total nitrogen) removal rate can be total to 40 ~ 70%, TP(
Phosphorus) removal rate can be to 35 ~ 55%, and heavy metal removing rate can be to 70 ~ 85%；
(4) occupied area of runoff pollution step control system in rivers and lakes provided by the invention reduces, 90% or more in system
Component part is all made of the high botanical system of environment affinity, can come in conjunction with the greening of waterfront line and the building of submerged forest
Synchronous synergetic implementation does not need additional land occupation substantially；
(5) whole system of runoff pollution step control system in rivers and lakes provided by the invention does not use any dynamical system
System, Non-energy-consumption, this will greatly save maintenance and operating cost；
(6) each component part is the very low material of investment in runoff pollution step control system in rivers and lakes provided by the invention
Material, and it is most of be available locally, while implementation can be combined with the greening of waterfront line, reducing further
Investment；
(7) rivers and lakes runoff pollution step control system operation and maintenance cost provided by the invention is low, it is only necessary to carry out to plant
Certain finishing and maintenance, substantially without operation and maintenance cost；
(8) stability of runoff pollution step control system in rivers and lakes provided by the invention is good, by being provided with more steps, more
The system of dimension controls, and organically combines between each system, carries out Collaborative Control to rainwash, has anti-shock loading by force and steady
Qualitative good advantage；
(9) component part most in runoff pollution step control system in rivers and lakes provided by the invention is all made of plant
System has very high environment affinity.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of vertical figure of rivers and lakes runoff pollution step control system provided in an embodiment of the present invention；
Fig. 2 is a kind of plan view of rivers and lakes runoff pollution step control system provided in an embodiment of the present invention；
In figure: 1, first rain filtering is shut off canal, 2, rain grid, 3, permeable hole, 4, cobblestone, 5, ground cover plant filter bag, and 6, wet
Body plant filter bag, 7, filtering geotextiles, 8, timber, 9, emergent aquactic plant purification zone, 10, submerged plant purification zone, 11, floating ball,
12, fence mesh, 13, spud pile.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
As Figure 1-Figure 2, the embodiment of the present invention provides a kind of rivers and lakes runoff pollution step control system, including first
Rain filters the canal 1 that shuts off, multistage plant filtration, purification band, ecological wood revetment and underwater soft fence；The just rain filtering is shut off
Canal 1 is set to the waterfront line driveway in river or lake or the side near water on waterfront informant trade, and the just rain filters the canal 1 that shuts off
Side is provided with multistage plant filtration, purification band near water；The multistage plant filtration, purification band includes sequentially connected ground cover plant mistake
Strainer 5, wet plant filter bag 6, emergent aquactic plant purification zone 9 and submerged plant purification zone 10, the ground cover plant filter bag 5 lean on
The nearly just rain filters the setting of canal 1 of shutting off, and is provided between the wet plant filter bag 6 and the emergent aquactic plant purification zone 9
Ecological wood revetment, the submerged plant purification zone 10 are equipped with underwater soft fence.Rivers and lakes runoff provided by the invention is dirty
Dye step control system filters the canal 1 that shuts off, multistage plant filtration, purification band, ecological wood revetment and underwater soft fence by first rain
It is organically combined etc. multiple systems, and multiple dimensions such as be related to physics, plant, biology, to the rainwash in river or lake
Pollution carries out multisystem, the step Collaborative Control of various dimensions, has targetedly carried out effective control to the pollution of initial rainwater
With shut off, pollution of the rainwash to water body greatly reduces, while refuting by the ecological niche and ecological wood of various plants
The building of bank is also greatly improved on landscape.
Further, it is described just rain filtering shut off canal 1 top be equipped with rain grid 2, adjacent the two of the rain grid 2
Spacing between root grate item is 20~30mm.Rain grid 2 includes that framework and the linear grate item of Duo Gen, grate item are linearly distributed
It or is in grid-like distribution.Rain grid is laid with lower than driveway or 0.15 ~ 0.2m of pavement.
Further, it is equipped with cobblestone 4 on the rain grid 2, partial size 35 ~ 55mm of the cobblestone 4 is described
The laying depth of cobblestone 4 is 0.1~0.15m.
Further, it is described just rain filtering shut off canal 1 canal bottom and canal wall on be respectively provided with permeable hole 3, the permeable hole 3
Longitudinal center line canal wall corresponding with the permeable hole 3 or canal dolly are straight.The longitudinal center line and Qu Bi of permeable hole 3 on canal wall
Inner surface is vertical, and the longitudinal center line of the permeable hole 3 on canal bottom is vertical with canal bottom inner surface；The horizontal space of permeable hole 3 is 100
~ 200mm, vertical spacing are 50 ~ 100mm.Initial rainwater is by 3 seepage flow underground of permeable hole, and wherein polluter is shut off by soil,
When underground is to water body undercurrent, the root system of approach multistage vegetational zone, polluter is by the soil around the root system and root system of vegetational zone
Earth biozone absorb, has degraded；Permeable hole 3, cobblestone 4 combine the control of more step various dimensions, and just rain filtering is avoided to cut
It flows canal 1 to block, causes first rain to filter the canal 1 that shuts off and lose due function, also will cause the pollution to environment.
Further, the cross section that the just rain filters 1 bottom of canal of shutting off is arc.The first rain filtering of the present embodiment is shut off
The width of the channel of canal 1 is 0.3 ~ 0.5m, and depth is 0.3 ~ 0.5m, and the top that first rain filters 1 cross section of canal of shutting off is rectangle, and bottom is arc
Shape.
Further, the ground cover plant filter bag 5 is layed on slope, and the gradient of slope is 3% ~ 10%.Ground quilt
One end of plant filter bag 5 filters the canal 1 that shuts off with first rain and connects, and ground cover plant filter bag 5 filters the canal 1 that shuts off along first rain and dips down
Tiltedly setting, using slope form, the slope aspect water surface, width is 3 ~ 5m；Ground cover plant filter bag 5 is drought-enduring, flooded using well developed root system
Ground cover plant, such as herba eleusines indicae and herba setariae viridis grass.Ground cover plant filter bag 5 filters the pollution for the canal 1 that shuts off to the excessively first rain of cross flow
Substance is shut off, filtered and is degraded.
Further, in this embodiment wet plant filter bag 6 connects with the end near water of ground flora filter bag 5, width
Preferably 1 ~ 2m, strong using special resistance to water-wet, rudiment power, well developed root system grows rapid shrub or arbor, such as weeping willow, metasequoia.It is wet
Body plant filter bag 6 is shut off, filtered and is degraded to the polluter that ground cover plant filter bag 5 is crossed in cross flow.
Further, the ecological wood revetment includes the timber 8 being arranged along water surface curve；Described 8 a part of timber
It is embedded in underground, another part bassets.Fir pile can be used in timber 8, and stake diameter is 50 ~ 100mm, and the stake basseted is a length of
150 ~ 300mm, a length of 0.8 ~ 1.5m of the stake of below ground, stake bottom are circle using type of carving, stake top, and pile body is cylindrical type, pile body
Retain bark, and pile body is perpendicular to the ground, it is continuous to arrange.
Further, the back side of the ecological wood revetment is equipped with filtering geotextiles 7.It filters geotextiles 7 and ground is hung down
Directly, top is concordant with 8 top of timber, and sub-surface length is 0.2 ~ 0.5mm, is not less than 200 g/m using area density2Long filament it is saturating
Water geotextiles.The filtering geotextiles 7 sand-like suspended matter tiny to the polluter in runoff, especially partial size shut off
Filter prevents from entering water body, and the tiny sand-like suspended matter of the partial size is difficult to precipitate after entering water body, seriously affects the transparency of water body
And light transmittance.
Further, in this embodiment emergent aquactic plant purification zone 9 is set to the side near water of wooden revetment, width is preferably 0.5 ~
1.5m, the strong emergent aquactic plant of strong using durability against pollution, with luxuriant foliage and spreading branches in leafy profusion, well developed root system, disease resistance, such as reed, canna, Chang
Pu, thaliadeabata etc..Emergent aquactic plant purification zone 9 shuts off to the polluter by ecological wood revetment, filtered and is degraded；Together
When, for floater caused by atmospheric falling dust, by the push wave of stormy waves, into emergent aquactic plant purification zone 9 after be just trapped,
Have the function of passively removing water surface dross, has good effect to the promotion of the water surface especially offshore water surface landscape.
Further, in this embodiment submerged plant purification zone 10 connects with the side near water of emergent aquactic plant purification zone 9, width
Preferably 3 ~ 5m, using Organic substance in water, ammonia nitrogen, phosphate etc. to water eutrophication patience with higher, is efficiently removed, again
The effective submerged plant of oxygen, such as eel grass, black algae, p.malaianus.Submerged plant purification zone 10 is to passing through emergent aquactic plant
The polluter of purification zone 9 is shut off and is degraded；Have the function of carrying out reoxygenation to water body well simultaneously.
Further, the underwater soft fence parallel with waterfront line be set in submerged plant purification zone 10, underwater soft fence away from
From wooden 2.5 ~ 3.5m of revetment.The underwater soft fence includes fence mesh 12 and spud pile 13；Reveal at the top of the spud pile 13
The water surface out, bottom are inserted into water-bed mud；The bottom of the fence mesh 12 is connect with the bottom of spud pile 13, the fence
The top of net 12 is connect with the top of the spud pile 13.Spud pile 13 in the present embodiment is made of fir pile, along water surface curve
Along wire routing, stake diameter is 50 ~ 100mm, a length of 50 ~ 100mm of the stake exposed the surface, more than the following river levee of the water surface or silt from the bottom of lake
A length of 2.0 ~ the 4.0m of stake, using type of carving, stake top is circle at stake bottom, and pile body is cylindrical type, and pile body retains bark, and pile body and ground
Vertically, pile body spacing is 3 ~ 6m.
Further, the top of the fence mesh 12 is equipped with buoyance module, and the buoyancy group includes passing through plastic ties string
Several floating balls 11 of connection.Floating ball 11 is made of UV resistant plastic foam ball, 100 ~ 150mm of diameter, 11 0.4 ~ 1m of spacing of floating ball,
It is contacted with plastic ties, the both ends of plastic ties, which are realized, tenses binding；Floating ball 11 bubble through the water column it is upper and at the top of 13 water surface of spud pile
Connection.Fence mesh 12 is made of waterproof plastics, and top is connect with floating ball 11 and plastic ties and, lower part and fixation equal with the water surface
Stake 13 connects, and the lower part of fence mesh 12 and water-bed unsealing, and bottom can cross water, and the width of fence mesh 12 is position water
Deep 1.3 ~ 1.7 times.
A kind of construction method of rivers and lakes runoff pollution step control system provided in an embodiment of the present invention is as follows:
1) in the side setting near water of waterfront line driveway or pavement, just rain filters the canal 1 that shuts off, and first rain filters 1 width of canal that shuts off and is
0.4m, depth 0.4m, the top that first rain filters 1 cross section of canal of shutting off is rectangle, and lower part is semicircle, on canal bottom and canal wall
Permeable hole 3 is set, and permeable hole 3 is vertical with canal bottom or canal wall, horizontal space 100mm, and vertical spacing is 60mm, forms just rain and cuts
It is dirty and shut off and control band, first rain filtering shut off it is upper at the top of canal 1 rain grid 2 is set, the gap of rain grid 2 is 25mm；Rainwater
The cobblestone 4 of 40 ~ 50mm of partial size is laid on grate 2,4 layers of cobblestone is lower than driveway or people with a thickness of 0.15m, rain grid 2
Trade 0.2m；Channel ontology can greatly save construction when being laid with using standard component made of water-permeable brick, length 0.5m
Time improves construction quality；
2) multistage plant filtration, purification band is set in the shut off side near water of canal 1 of first rain filtering, is followed successively by ground cover plant filter bag, wet
Body plant filter bag, emergent aquactic plant purification zone, submerged plant purification zone；
Wherein, one end of ground cover plant filter bag 5 and first rain the filtering canal 1 that shuts off connect, using slope form, slope is 3% ~
10%, specific visual different situation adjustment, the slope aspect water surface, width 4m, using drought-enduring, the flooded ground cover plant of well developed root system,
Such as herba eleusines indicae and herba setariae viridis grass；
Wet plant filter bag 6 connects with the end near water of ground flora filter bag 5, width 1.5m, using special resistance to water-wet, rudiment
Power is strong, well developed root system, grows rapid shrub or arbor, such as weeping willow, metasequoia, and plantation spacing is 2.5m；
Emergent aquactic plant purification zone 9 is set to the side near water of ecological wood revetment, and width is preferably 1.2m, the strong, branch using durability against pollution
The emergent aquactic plant that leaf is in great numbers, well developed root system, disease resistance are strong, such as reed, canna, calamus, thaliadeabata, the above plant can be with
The arrangement of combining environmental landscape segmented multi-level time, wherein the planting density of reed is 36 plants/m2, the planting density of canna is 15
Strain/m2, the planting density of calamus is 3 ~ 5 plants/clump, 9 clumps/m2, thaliadeabata plantation density 10-20 bud/clump, 2-3 clumps/m2；
Submerged plant purification zone 10 connects with the side near water of emergent aquactic plant purification zone 9, width 4m, if the waterfront line depth of water compared with
It shallowly, can be with expanded width appropriate to 10m；Using to water eutrophication patience with higher, efficiently go organic in water removal
Object, ammonia nitrogen, phosphate etc., the effective submerged plant of reoxygenation, such as eel grass, black algae, p.malaianus, the above plant can be with
The arrangement of combining environmental landscape segmented multi-level time, wherein the planting density of eel grass is 25 ~ 35 plants/m2, the planting density of black algae is
20 ~ 30 plants/m2, the planting density of p.malaianus is 10 ~ 20 plants/m2；
3) ecological wood revetment is set between wet plant filter bag 6 and emergent aquactic plant purification zone 9, and ecological wood revetment uses
Fir pile composition, along water surface curve along wire routing, stake diameter is 60 ~ 90mm, a length of 200mm of the stake basseted, the stake of below ground
A length of 1m, using type of carving, stake top is circle at stake bottom, and pile body is cylindrical type, and pile body retains bark, and pile body is perpendicular to the ground, even
Continuous arrangement；The back side of ecological wood revetment is laid with filtering geotextiles 7, and filtering geotextiles 7 are perpendicular to the ground, top and fir pile
Top is concordant, and sub-surface length 0.4mm uses area density for 250 g/m2The permeable geotextiles of long filament；
4) the underwater soft fence parallel with waterfront line be set in submerged plant purification zone 10, underwater soft fence by floating ball 11, enclose
Column net 12 and spud pile 13 form, apart from ecological wood revetment 3m；Fence mesh 12 is made of waterproof plastics, top and floating ball 11
It is connected with plastic ties, equal with the water surface, lower part is connect with spud pile 13, and lower part and water-bed unsealing, bottom can cross water, fence
The width of net 12 is 1.5 times of the position depth of water；Floating ball 11 is made of UV resistant plastic foam ball, and diameter 100mm floats on
It on the water surface, is contacted with plastic ties, 0.5m in 11 spacing of floating ball, the plastic ties and spud pile water surface top are connect；Spud pile 13 by
Fir pile is made, and along water surface curve along wire routing, stake diameter is 100mm, a length of 60mm of the stake exposed the surface, the following river levee of the water surface or lake
The a length of 3.5m of stake more than bottom, using carving type, stake top is circle at stake bottom, and pile body is cylindrical type, and pile body retains bark, and pile body with
Ground is vertical, and pile body spacing is 5m.
Using provided in this embodiment kind of rivers and lakes runoff pollution step control system to the earth's surface in river or lake
When runoff pollution is controlled, the initial rainwater runoff on road surface flows into just rain by road surface and filters the canal 1 that shuts off, when by cobblestone 4
The intercepted filtering of large granular impurity, the initial rainwater for filtering the canal 1 that shuts off into first rain penetrate into underground, later period by permeable hole 3
When amount of rainfall is excessive, extra water cross flow crosses 4 layers of cobblestone, successively approach ground cover plant filter bag 5, wet plant filter bag 6,
Geotextiles 7, ecological wood revetment, emergent aquactic plant purification zone 9, submerged plant purification zone 10, underwater soft fence are filtered, through excessive ladder
The comprehensive purifyings such as grade, the filtering of various dimensions, interception, absorption, degradation import water body, and rainwash greatly reduces to water body
Pollution.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of rivers and lakes runoff pollution step control system, it is characterised in that: filter the canal that shuts off, multistage plant including first rain
Filtration, purification band, ecological wood revetment and underwater soft fence；The just rain filters the water that the canal that shuts off is set to river or lake
The side near water on water front driveway or waterfront informant trade, the side near water that rain filters the canal that shuts off described just are provided with multistage plant filtering
Purification zone；The multistage plant filtration, purification band includes sequentially connected ground cover plant filter bag, wet plant filter bag, very water
Plant purification band and submerged plant purification zone, the ground cover plant filter bag filters canal setting of shutting off close to the just rain, described
Ecological wood revetment is provided between wet plant filter bag and the emergent aquactic plant purification zone, in the submerged plant purification zone
Equipped with underwater soft fence.
2. a kind of rivers and lakes runoff pollution step control system as described in claim 1, it is characterised in that: the just rain mistake
The top for filtering the canal that shuts off is equipped with rain grid, and the spacing between adjacent two grate items of the rain grid is 20~30mm.
3. a kind of rivers and lakes runoff pollution step control system as claimed in claim 2, it is characterised in that: the downspout strainer
Cobblestone, 35 ~ 55mm of partial size of the cobblestone are equipped on son, the laying depth of the cobblestone is 0.1~0.15m.
4. a kind of rivers and lakes runoff pollution step control system as described in claim 1, it is characterised in that: the just rain mistake
It filters and is respectively provided with permeable hole, the longitudinal center line of permeable hole canal corresponding with the permeable hole on the canal bottom and canal wall for the canal that shuts off
Wall or canal dolly are straight.
5. a kind of rivers and lakes runoff pollution step control system as described in claim 1, it is characterised in that: the just rain mistake
The cross section for filtering canal bottom of shutting off is arc.
6. a kind of rivers and lakes runoff pollution step control system as described in claim 1 describedly, it is characterised in that: planted
Object filter bag is layed on slope, and the gradient of slope is 3% ~ 10%.
7. a kind of rivers and lakes runoff pollution step control system as described in claim 1, it is characterised in that: the ecological wooden
Matter revetment includes the timber being arranged along water surface curve；Described timber a part is embedded in underground, and another part bassets.
8. a kind of rivers and lakes runoff pollution step control system as described in claim 1, it is characterised in that: the ecological wooden
The back side of matter revetment is equipped with filtering geotextiles.
9. a kind of rivers and lakes runoff pollution step control system as described in claim 1, it is characterised in that: described underwater soft
Fence includes fence mesh and spud pile；It exposes the surface at the top of the spud pile, bottom is inserted into water-bed mud；It is described to enclose
The bottom of column net and the bottom of spud pile connect, and the top of the fence mesh is connect with the top of the spud pile.
10. a kind of rivers and lakes runoff pollution step control system as claimed in claim 9, it is characterised in that: the fence
The top of net is equipped with buoyance module, and the buoyancy group includes passing through the concatenated several floating balls of plastic ties.
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| CN201811477607.3A CN109399800B (en) | 2018-12-05 | 2018-12-05 | River and lake runoff pollution cascade control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477607.3A CN109399800B (en) | 2018-12-05 | 2018-12-05 | River and lake runoff pollution cascade control system |
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| CN110036810A (en) * | 2019-03-05 | 2019-07-23 | 辽宁石油化工大学 | A kind of northern Mountainous Watershed Riparian vegetation community collocation method conducive to N, P ecological regulation and control |
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| CN111925048A (en) * | 2020-07-15 | 2020-11-13 | 中冶南方都市环保工程技术股份有限公司 | Water surface runoff pollution transverse deep layer control system and method |
| CN114853175A (en) * | 2021-01-20 | 2022-08-05 | 东莞市生态环保研究院有限公司 | Comprehensive ecological restoration method for water, soil and gas environmental pollution |
| CN115231773A (en) * | 2022-07-07 | 2022-10-25 | 广州市山水生态环保建设有限公司 | Courtyard landscape domestic sewage treatment system |
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