CN101973638B - Ecological percolating type water purification groin system - Google Patents

Ecological percolating type water purification groin system Download PDF

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Publication number
CN101973638B
CN101973638B CN2010105351896A CN201010535189A CN101973638B CN 101973638 B CN101973638 B CN 101973638B CN 2010105351896 A CN2010105351896 A CN 2010105351896A CN 201010535189 A CN201010535189 A CN 201010535189A CN 101973638 B CN101973638 B CN 101973638B
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China
Prior art keywords
groynes
type water
water purification
purification
percolation type
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Expired - Fee Related
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CN2010105351896A
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Chinese (zh)
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CN101973638A (en
Inventor
王超
侯俊
王沛芳
钱进
吴建成
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Hohai University HHU
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Hohai University HHU
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The invention discloses an ecological percolating type water purification groin system, which has a trapezoidal structure. A biological strengthening purification area is formed in the middle of the system, and block stone is arranged on the two sides; a mixture of sand, broken stone and soil is arranged between the steel mesh cobble stone and the block stone; submerged plants and planting bags are arranged on the outer surface of the block stone, emergent aquatic plants are arranged on the top, and a broken stone hardcore bed is arranged at the bottom; a cobble filtering body is arranged on the broken stone hardcore bed; the surface layer of the biological strengthening purification area is a reinforcing dam top; and the two sides of the reinforcing dam top are provided with stone steps. The invention has the advantages that: relatively good water purification effect is realized; the purification body can realize batch production in plants; and the pollutants in the water flow and the pollutants adsorbed on the gravel surface are absorbed and decomposed through the joint effect of the plant root system and a microbial film. The block stone can prevent the water flow from eroding the groin foundation and enhance the stability of the side slope and the resistance against storms; and the submerged plants in the stone area can purify the water in rivers and provide a good habitat for the growth of the aquatic plants in rivers, while appearing as a landscape.

Description

Ecology percolation type water purification groynes system
Technical field
What the present invention relates to is a kind of water conservancy project structures of environment amity, especially a kind of ecological percolation type water purification groynes system with purification of water quality and bank protection effect.
Background technology
Groynes is the hydraulic structure of widespread use in river regulation and the protection works, and its major function of traditional groynes is that the protection riverbank is not subjected to the erosion of current and produces and draw brush and destroy, and protects bank stability to adjust the river water flow structure.Along with the raising day by day that the river course quality of water environment constantly worsens and water correction requires, river conservancy worker's structures need develop to the ecology direction, to be river conservancy worker's buildings improve in shore protection Gu Tan, navigation channel, dash dams, holds back silt, poised stream gesture, speedily carry out rescue work block up in, also to have the quality of water environment of improvement, build biological habitat and repair functions such as the ecosystem.As seen, traditional groynes function singleness does not consider that the structure that utilizes species diversity comes water quality of river is purified, and does not have to build biological habitat and improve ecological functions such as quality of water environment.
Summary of the invention
That the present invention proposes is a kind of shore protection Gu Tan, and it is all good to improve the water quality effect, takes into account the ecological percolation type water purification groynes system of certain landscape effect simultaneously, its purpose just is to overcome the defective of traditional groynes aspect the water quality reparation, comprehensive utilization groynes technology, artificial swamp and biomembrane purification principle
Technical solution of the present invention: the structure that it is characterized in that is trapezoidal, the centre is biological reinforced purification zone, biological reinforced purification zone forms with woven wire cobble body enclosure, ecology percolation type water purification groynes system both sides are piece stone bodies, between woven wire cobble body and piece stone body is sand, rubble, the mixing with soil body, the outer surface of piece stone body is submerged plant and plantation bag, ecology percolation type water purification groynes system top is an emergent, ecology percolation type water purification groynes system bottom is a blotter, it on the blotter cobble filtrate body, the biological reinforced top layer that purifies the zone is the bank protection top, and the both sides at bank protection top are the barnacle ladders.Advantage of the present invention and effect are:
(1) place biological reinforced purification body in biological reinforced purifying area, the biological filter bulb of being filled in the cage forms microbial film easily, and water body is had decontamination effect improving preferably.This purification body can be realized the batch production mass production, when decontamination effect improving is not good, and can be by changing the lasting effect that biological reinforced purification body guarantees the biofiltration effect.
(2) lay filtrate by planting aquatic plants and bottom in the infiltration dam body, can utilize the acting in conjunction of root system of plant and microbial film, absorption is also decomposed in the current and the pollution substance that is adsorbed on the gravel surface.
(3) side slope of groynes and head form the enrockment district with piece stone body pell mell construction, and piece stone body can prevent that current from drawing brush to the groynes basis, has increased the stability of side slope and the ability of storm resisting, and the enrockment district can also plant planting submerged plant river water is purified.
(4) growth that is the river waterplant of the crack of stone of the emergent of dam crest and groynes both sides side slope and submerged plant provides a good habitat, and certain landscape effect is arranged.
Description of drawings
Accompanying drawing 1 is ecological percolation type water purification groynes System planes layout drawing.
Accompanying drawing 2 is ecological percolation type water purification groynes system diagrammatic cross-sections.
Accompanying drawing 3 is combined bio strengthened purification body synoptic diagram.
1 is ecological percolation type water purification groynes system among the figure, the 2nd, biological reinforced purification zone, the 3rd, piece stone body, the 4th, blotter, the 5th, cobble filtrate body, the 6th, combined bio strengthened purification body, the 7th, woven wire cobble body, the 8th, sand, rubble, mixing with soil body, the 9th, emergent, the 10th, submerged plant and plantation bag, the 11st, bank protection top, the 12nd, barnacle ladder.
Embodiment
Contrast accompanying drawing 1,2, the structure of ecology percolation type water purification groynes system is trapezoidal, the centre is biological reinforced purification zone 2, biological reinforced purification zone 2 usefulness woven wire cobble bodies, 7 enclosures form, ecology percolation type water purification groynes system both sides are piece stone bodies 3, woven wire cobble body 7 and 3 of piece stone bodies are sand, rubble, mixing with soil body 8, the outer surface of piece stone body 3 is submerged plant and plantation bag 10, ecology percolation type water purification groynes system top is an emergent 9, ecology percolation type water purification groynes system bottom is a blotter 4, it on the blotter 4 cobble filtrate body 5, the biological reinforced top layer that purifies zone 2 is bank protection top 11, and the both sides at bank protection top 11 are barnacle ladders 12.
Woven wire cobble spare 7 is to load cobble to form in the steel wire net cage, links closely mutually by the reinforcing bar binding between the steel wire net cage, forms an integral body in order to separate biological reinforced purification zone and outer field infiltration dam body.
The infiltration dam body is separated by the geosynthetics of easy degraded with peripheral piece stone body 3.
Placement of multiple layers combined bio strengthened purification body 6 in the biological reinforced purification zone 2, the framework number of plies is determined by height of dam.
Contrast accompanying drawing 3, combined bio strengthened purification body 6 are to use the welding of reinforced concrete rod member to form the hollow skeleton of hexahedron, twine galvanized wire and form wire mesh cage, filled biomass filter bulb filler in wire mesh cage on the face of skeleton.
Infiltration dam body lower floor is a cobble filtrate body 5; The upper strata is sand, rubble and mixing with soil body 8, and being used for has perennial anti-the flooding property emergent 9 of strong removal effect at dam facing plantation well developed root system to nitrogen, phosphorus.
The both sides of ecological percolation type water purification groynes system and the head piece stone body 3 of jettisoninging forms the enrockment districts, is used for fixing ecological percolation type water purification groynes and prevents that stormy waves from corroding.
Be placed with submerged plant and plantation bag 10 between the piece stone body 3, compound and plant seed etc. be housed for submerged plant growth in submerged plant and the plantation bag, the submerged plant of being planted has strong receptivity to nitrogen, phosphoric.
The meet water surface slope of a side of ecological percolation type water purification groynes both sides is 1: 2~1: 3, and the surface slope of backwater one side is 1: 2.5~1: 3.5.Formed groynes system couples together with the riverbank in the plane and is T-shaped,
The angle of ecological percolation type water purification groynes axis and bank river levee is 60 °, and ecological percolation type water purification groynes top exceeds ordinary water level, links to each other by barnacle ladder 12 with bank protection top 11, makes things convenient for the related personnel to carry out groynes and safeguards.
Ecological percolation type water purification groynes dam body length satisfy its perpendicular to the ratio of the projecting length of water (flow) direction and stable river width less than 0.3, the axis with 50m between the adjacent groynes forms the groynes group at interval.
When the upstream current infiltrate through groynes inside between piece stone body slit, the part pollution substance also is retained down or is absorbed by submerged plant, after entering the infiltration dam body, current flow in filter material layer in the mode of seepage flow, microbial film that filter material surface adheres to and the root system of plant all have stronger removal effect to pollution substance, filter through physical adsorption, effect such as microbiological deterioration and plant absorbing purifies the back and enters biological reinforced purifying area by woven wire cobble body, combined bio strengthened purification body further plays a role, rely on the oxygenolysis of filter bulb surface biological film to remove pollution substance, current leave ecological percolation type water purification groynes by infiltration dam body and enrockment district once more and flow to the downstream afterwards.Like this, the part current of upstream are with the mode whole ecological percolation type water purification groynes system that flows through of infiltration, enter the downstream again after the purifying treatment by ecological percolation type water purification groynes different zones, reduced the organic loading in river course, improved the water quality in river course.

Claims (9)

1. ecological percolation type water purification groynes system, the structure that it is characterized in that is trapezoidal, the centre is biological reinforced purification zone, biological reinforced purification zone forms with woven wire cobble body enclosure, placement of multiple layers combined bio strengthened purification body in biological reinforced purification zone (2), combined bio strengthened purification body is to use the welding of reinforced concrete rod member to form the hollow skeleton of hexahedron, twines galvanized wire and form wire mesh cage, filled biomass filter bulb filler in wire mesh cage on the face of skeleton; Ecology percolation type water purification groynes system both sides are piece stone bodies, be sand, rubble, mixing with soil body between woven wire cobble body and piece stone body, the outer surface of piece stone body is submerged plant and plantation bag, ecology percolation type water purification groynes system top is an emergent, ecology percolation type water purification groynes system bottom is a blotter, be cobble filtrate body on the blotter, the top layer in biological reinforced purification zone is the bank protection top, and the both sides at bank protection top are the barnacle ladders.
2. ecological percolation type water purification groynes according to claim 1 system, it is characterized in that woven wire cobble spare is to load cobble to form in the steel wire net cage, link closely mutually by the reinforcing bar binding between the steel wire net cage, form an integral body in order to separate biological reinforced purification zone and outer field infiltration dam body.
3. ecological percolation type water purification groynes according to claim 2 system is characterized in that permeating dam body and separates by the geosynthetics of easy degraded with peripheral piece stone body; Infiltration dam body lower floor is a cobble filtrate body, and infiltration dam body upper strata is sand, rubble and mixing with soil body, and being used for has perennial anti-the flooding property emergent of strong removal effect at dam facing plantation well developed root system to nitrogen, phosphorus.
4. ecological percolation type water purification groynes according to claim 1 system is characterized in that placement of multiple layers combined bio strengthened purification body in the biological reinforced purification zone, and the framework number of plies is determined by height of dam.
5. ecological percolation type water purification groynes according to claim 1 system is characterized in that the both sides of ecological percolation type water purification groynes system and the head piece stone body of jettisoninging forms the enrockment district, is used for fixing ecological percolation type water purification groynes and prevents that stormy waves from corroding; Be placed with submerged plant and plantation bag between the piece stone body, compound and plant seed be housed for submerged plant growth in submerged plant and the plantation bag, the submerged plant of being planted has strong receptivity to nitrogen, phosphoric.
6. ecological percolation type water purification groynes according to claim 1 system is characterized in that the meet water surface slope of a side of ecological percolation type water purification groynes system both sides is 1: 2~1: 3, and the surface slope of backwater one side is 1: 2.5~1: 3.5.
7. ecological percolation type water purification groynes according to claim 1 system, it is characterized in that groynes in the plane with the riverbank couple together be the T-shaped, the angle of groynes axis and bank river levee is 60 °, ecology percolation type water purification groynes system top exceeds ordinary water level, links to each other by barnacle ladder (12) with bank protection top (11).
8. ecological percolation type water purification groynes according to claim 1 system, it is characterized in that ecological percolation type water purification groynes system dam body length satisfy its perpendicular to the ratio of the projecting length of water (flow) direction and stable river width less than 0.3, the axis with 50m between the adjacent groynes forms the groynes group at interval.
9. ecological percolation type water purification groynes according to claim 1 system, it is characterized in that when the upstream current infiltrate through ecological percolation type water purification groynes internal system between piece stone body slit, the part pollution substance also is retained down or is absorbed by submerged plant, after entering the infiltration dam body, current flow in filter material layer in the mode of seepage flow, microbial film that filter material surface adheres to and the root system of plant all have stronger removal effect to pollution substance, filter through physical adsorption, microbiological deterioration and plant absorbing effect purify the back and enter biological reinforced purifying area by woven wire cobble body, rely on the oxygenolysis of filter bulb surface biological film to remove pollution substance, current leave ecological percolation type water purification groynes system flow downstream by infiltration dam body and enrockment district once more afterwards, like this, the part current of upstream are with the mode whole ecological percolation type water purification groynes system that flows through of infiltration.
CN2010105351896A 2010-11-09 2010-11-09 Ecological percolating type water purification groin system Expired - Fee Related CN101973638B (en)

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