CN205011476U - Ecological preliminary treatment system for riverway water body is restoreed - Google Patents

Ecological preliminary treatment system for riverway water body is restoreed Download PDF

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Publication number
CN205011476U
CN205011476U CN201520661276.4U CN201520661276U CN205011476U CN 205011476 U CN205011476 U CN 205011476U CN 201520661276 U CN201520661276 U CN 201520661276U CN 205011476 U CN205011476 U CN 205011476U
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ecological
water
pretreatment
unit
gravel
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何文辉
张珊
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Shanghai Taihe water environment technology development Limited by Share Ltd
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SHANGHAI TAIHE WATER ECOLOGICAL TECHNOLOGY Co Ltd
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Abstract

The utility model belongs to the technical field of the ecological remediation engineering, concretely relates to ecological preliminary treatment system for riverway water body is restoreed. Ecological preliminary treatment system for riverway water body is restoreed says including along the river that the unit is distinguished, is held back to dam body, the gravel that the upper reaches to low reaches direction set gradually, processing unit, emerged plant plant the unit in advance, the unrestrained benthophyte of anti -wind plants the unit. Ecological pretreatment systems can slow down the upland water water velocity of flow, can resist water flow scouring, adsorb and get rid of aquatic polluting substances, reduce follow -up ecosystem pollution load. The utility model has the characteristics of reasonable in design, simple structure, with low costs, convenient to use etc, good application prospect has.

Description

A kind of ecological pretreatment system being applied to river water body and repairing
Technical field
The utility model belongs to Ecological Restoration Project technical field, is specifically related to a kind of ecological pretreatment system being applied to river water body and repairing.
Background technology
Urban river is the important base of urban ecological environment, it is a kind of important natural resources and environment carrier, it refers to the river or section rising in city or flow through city, and history is by hand excavation, through to develop for many years and to have canal, the canal system of natural river feature.With other fluvial facies ratio, the productive life activity relationship of urban river and the mankind is more close, the effect played in urban planning and construction is also more remarkable, and therefore, the hydrological characteristics of urban river, physical aspect and the ecosystem are more vulnerable to the intervention of mankind's activity.Along with the quickening of urban construction paces, the growing of population, a large amount of undressed sanitary sewage, trade effluent are discharged into river, the river ecosystem closely bound up with human lives is caused to be degenerated gradually, especially cities and towns middle and small river, sewage collecting efficiency and treatment scale limited, add that its environmental capacity is little, self-purification capacity is weak, the ecosystem is subject to havoc, strengthen to the water correction of urban river and restoration of the ecosystem work extremely urgent.
At present, domestic and international researchist conducts extensive research for stream pollution recovery technique, and achieves certain achievement in research.Stream pollution recovery technique refers to by various technology and means, makes the method that the pollutent in sewage is removed or transformed.According to the difference of cleaning principle, river water body purification techniques can be divided into peripheral doses technology, chemical remediation technology and bio-ecological restoration technology three major types.Physical treatment technology has the advantages such as equipment is simple, cost is low, convenient management, but by the scope of application and the restriction thoroughly can not repairing ecosystem shortcoming, peripheral doses technology often needs and other recovery technique fit applications.Chemical restoration is exactly briefly the chemistry and the materialization effect that utilize chemical agent, comprises neutralization, precipitation, flocculation etc., pollutent is transferred to the method for another kind of thing phase from aqueous phase.There is the chemical purification method of application example mainly to comprise chemical algae removing and flocculation sediment at present, all achieve certain effect.Although adopt the simple and easy to do and instant effect of chemical restoration, not fundamentally removal of pollutants, and add chemical agent and easily produce secondary pollution.
Practice shows, be no matter adopt physical method dredge bed mud and artificial aeration's aeration, or adopt chemical repair method, all can not obtain lasting effective effect in river, even also can aggravate to destroy original ecosystem.Water pollution is substantially the degeneration of ecosystem function, therefore must explore the new way of effective water pollution improvement with the theory of ecology and technology.
Present application is comparatively extensive, the ecological reestablishment that effect is lasting is hydrobiont method, hydrobiont method is by building aquatic ecosystem perfect in water body, utilize the absorption and sorption of plant, eating of animal, transformation improves water quality, fundamentally changes the eco-treatment technology of river course environment.Hydrobiont method has the advantages such as ecological, environmental protective, effective, time length be long, but forms primarily of plant because of it, overall poor impact resistance, can not be applicable to that upland water amount is large, flow velocity water body faster.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of ecological pretreatment system being applied to river water body and repairing, described ecological pretreatment system, can slow down upland water water volume flow rate, can resist current scour, Adsorption pollutant in water, reduce follow-up Pollution of Eco-system Environment load.
For realizing above-mentioned and other object, the utility model by the following technical solutions:
First aspect of the present utility model, provide a kind of be applied to river water body repair ecological pretreatment system, comprise set gradually along upstream, river course to downstream direction dam body, gravel area, retain unit, pretreatment unit, emergent planter units, wind and wave resistance submerged plant planting unit.
Described dam body, for slowing down upland water water volume flow rate.
Described gravel area, for slowing down upland water water volume flow rate further.
Describedly retain unit, for being tackled by the foreign material in upper river water.
Described pretreatment unit, for the water retained described in warp, utilizes artificial aquatic weed and waterplant to carry out the absorption of nitrogen phosphorus and microbiological deterioration.
Described emergent planter units, for making the water through described pretreatment unit, utilizing emergent and bio-film colonization device to carry out further nitrogen phosphorus and absorbing and microbiological deterioration.
Wind and wave resistance submerged plant planting unit, so by the water through described emergent planter units, utilize submerged plant to carry out suspended substance interception, nitrogen phosphorus absorb.
Preferably, described dam body adopts overfall dike.
Preferably, described gravel area is filled with coarse grain gravel or macrosome gravel, and the diameter of described gravel is 50mm-100mm.
Preferably, retain unit described in and adopt permeable filter.Described permeable filter is arranged to groynes form.
Preferably, described pretreatment unit, comprises artificial aquatic weed growing area and water plant planting district waterborne under water.
Preferably, the artificial aquatic weed under water in the described growing area of artificial aquatic weed under water forms the water surface ecological floating island with fixing hole on the water surface, for the waterplant planted in described water plant planting district waterborne provides immobilization carrier.
Preferably, described waterplant selects one or more in iris, parasol grass, careless, the water opium poppy of mullet or mushroom grass.
Wherein, the Latin of described iris is called: IristectorumMaxim.The Latin of parasol grass is called Cyperusalternifolius.The Latin of described mullet grass is called PontederiacordataL..The Latin of described water opium poppy is called Hydrocleysnymphoides.The Latin of described mushroom grass is called hydrocotylevulgaris.
Preferably, the upstream and downstream of described pretreatment unit is respectively equipped with fixing graticule mesh.
Preferably, falling body is provided with bottom described pretreatment unit.
Preferably, described emergent planter units, the emergent growing area comprising ecological floating island and be positioned at ecological floating island top and the bio-film colonization device be positioned at bottom ecological floating island.
Preferably, the emergent planted in described emergent growing area select in iris, parasol grass, careless, the water opium poppy of mullet or mushroom grass one or more.
Preferably, the submerged plant planted in wind and wave resistance submerged plant planting unit selects red line grass.Preferably, the planting density of described red line grass is 130 strains/m 2, plant height 40-60cm.
The Latin of described red line grass is called PotamogetonpectinatusL..
As mentioned above, relative to prior art, of the present utility model have following beneficial effect:
(1) river course of the present utility model pretreatment system, is provided with dam body and retains unit, effectively can slow down upland water and impact; Pretreatment unit slow down the impact of upland water further, makes upland water relatively stable, can accelerate the solid matter deposition that water is carried.After emergent planter units, the turbulent flow of upland water is through four road water conservancy unhurried current facilities, and turbulent flow becomes metastable equal uniform flow, and masses hit power reduces greatly.
(2) two chinampa facilities are provided with before and after the utility model, that is, pretreatment unit and emergent planter units, artificial aquatic weed and bio-film colonization system are after cultivating after a while, surface attachment microbial film, can various pollutents effectively in purifying water body, reduce upstream contaminant to the impact of river water quality.
In sum, the utility model have reasonable in design, structure is simple, cost is low, the feature such as easy to use, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation being applied to the ecological pretreatment system that river water body is repaired of the present utility model.
Fig. 2 is the pretreatment unit structural representation in the ecological pretreatment system being applied to river water body reparation of the present utility model.
Fig. 3 is the emergent planter units structural representation in the ecological pretreatment system being applied to river water body reparation of the present utility model.
Reference numeral:
1 dam body
2 gravel areas
3 retain unit
4 fixing graticule mesh
5 pretreatment units
6 fixing graticule mesh
7 emergent planter units
8 wind and wave resistance submerged plant planting unit
9 artificial aquatic weed growing areas under water
10 hawsers
11 falling bodies
12 water plant planting districts waterborne
13 ecological floating islands
14 emergent growing areas
15 bio-film colonization devices
16 stationary installations
Embodiment
By particular specific embodiment, embodiment of the present utility model is described below, person skilled in the art scholar the content disclosed by this specification sheets can understand other advantages of the present utility model and effect easily.
Notice, structure, ratio, size etc. that this specification sheets institute accompanying drawings illustrates, content all only in order to coordinate specification sheets to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionlity or size, do not affecting under effect that the utility model can produce and the object that can reach, still all should drop on technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, quote in this specification sheets as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the utility model.
The technical problem that the utility model solves can be achieved through the following technical solutions:
(1) dam body
Upper river water is before entering water purification system, and first through dam body, such as overfall dike, to slow down upland water water volume flow rate.
(2) gravel area
Upper river water after slowing down through dam body, then through being filled with the gravel area of coarse grain or macrosome gravel, slows down the impact of upland water to river bed further, reduces water body kinetic energy.Meanwhile, gravel surface also can form certain thickness microbial film, can tentatively reduce water pollution substrate concentration.
(3) unit is retained
Thick rubbish and floating matter after the double-reduction through dam body and gravel area, then through permeable filter, are trapped in outside filter by upper river water, and the rubbish be retained down outside filter is regularly cleared up.Described permeable filter is arranged to groynes form, and the filter frontal impact power of groynes form is less than vertical filter, and the filter of groynes form makes full use of water body eddy current, can cut down energy, reduces water body and washes away, protection bank slope safety.
(4) pretreatment unit
Be pretreatment unit in the downstream of permeable filter, pretreatment unit is lived for river course or industrial sewage affects that the Pollutant levels caused are high, the discharge of sewage is unstable and a kind of processing unit of design, this collection of units under water the technology such as artificial aquatic weed and water surface ecological floating island in one.
Artificial aquatic weed is arranged to mesh-like under water, and mesh-like not only can increase the contact area of artificial aquatic weed and current under water, also can form the water surface ecological floating island with fixing hole on the water surface simultaneously.Can in described fixing hole planting aquatic plants, on the one hand, waterplant root system Absorbable rod utilizes the nutritive salt in water body, strengthening soil removability; On the other hand, the effect of beautifying view can be played.Meanwhile, absorbed and the degraded of root system surface microorganism by waterplant, also can remove part pollutent.
Artificial aquatic weed under water, can be the attachment interface that microorganism provides good, forms microbial film, reduces the loss of microorganism in sewage treatment process, improve the ability of system antipollution load, thus greatly improve the effect of sewage disposal on artificial aquatic weed surface.
(5) emergent planter units
The downstream of pretreatment unit is emergent planter units, and emergent planter units adopts ecological floating island plantation emergent.Ecological floating island can carry out adjustment height automatically according to river water level, creates good growing environment condition, be conducive to the survival and growth of plant to emergent.Ecological floating island bottom adopts waterplant biofilm system, the root system of plant can be the attachment interface that microorganism provides good, for various microorganism provides existence home, form microbial film, reduce the loss of microorganism in sewage treatment process, the ability of raising system antipollution load, thus greatly improve the effect of sewage disposal.
(6) wind and wave resistance submerged plant planting unit
The downstream of emergent planter units is wind and wave resistance submerged plant planting unit, river bed plantation wind and wave resistance submerged plant, plays interception suspended substance, absorbed nitrogen phosphorus, the decontamination effect improving such as to enhance the transparency.
More specifically, refer to as shown in Figure 1 to Figure 3, upper river water first after the continuous deceleration of dam body 1 and gravel area 2, then after the interception retaining unit 3, enters pretreatment unit 4.
The kind of described dam body 1 is not limit, as long as can slow down upland water water volume flow rate.Preferably, described dam body 1 can be overfall dike, to slow down upland water water volume flow rate.
Lay in the downstream of described dam body 1 be made up of the coarse grain of 50mm-100mm, macrosome gravel area 2, described gravel area 2 can with river bed with wide, length is 10m.Arranging of described gravel area 2 can slow down the impact of upland water to river bed, reduces water body kinetic energy, and gravel surface can form certain thickness microbial film simultaneously, can tentatively reduce water pollution substrate concentration.
Arrange in the downstream of described gravel area 2 and retain unit 3, described in retain unit 3 kind do not limit, as long as rubbish thick in water and floating matter can be tackled.Preferably, retain unit 3 described in and can be permeable filter.Described permeable filter adopts the High Tensile Steel Wire grid shock-resistant, erosion resistance is strong, and grid-gap is 200mm*200mm.The reinforced concrete pile that filter vertically squeezes into river bed by a row is fixed, and reinforced concrete pile diameter is 20cm, and spacing is 1m.Filter is arranged to groynes form, and the filter frontal impact power of groynes form is less than vertical filter, and the filter of groynes form makes full use of water body eddy current, can cut down energy, reduces water body and washes away, protection bank slope safety.
Described 3 ~ 10m the place, unit 3 downstream that retains arranges pretreatment unit 5.Described pretreatment unit 5 comprises artificial aquatic weed growing area 9 and water plant planting district 12 waterborne under water.
The upstream and downstream of described pretreatment unit 5 is respectively equipped with fixing graticule mesh 4 and fixing graticule mesh 6.
The bottom of described pretreatment unit 5 is provided with falling body 11.Mainly play the effect of fixing artificial aquatic weed.
The wide 18m of artificial aquatic weed growing area 9 under water, along the long 4m of water (flow) direction.The artificial aquatic weed under water of planting in artificial aquatic weed planter units 9 is under water arranged to mesh-like, mesh-like not only can increase the contact area of artificial aquatic weed and current under water, also can form the water surface ecological floating island with fixing hole on the water surface simultaneously, for in top water plant planting unit 12, the plantation of waterplant provides immobilization carrier, waterplant can directly be planted in the fixing hole of artificial aquatic weed formation.Preferably, in direction, vertical riverbank, the spacing of artificial aquatic weed is 150mm, is being parallel to direction, riverbank, and the spacing of artificial aquatic weed is 100mm.The screen cloth of artificial aquatic weed is arranged, the water surface is formed the fixing hole of 150*100.
Preferably, described artificial aquatic weed material is superfine fiber stereoscopic artificial aquatic weed, and this type of superfine fiber stereoscopic artificial aquatic weed has extremely strong resistance to deterioration, and work-ing life, more than 15 years, has much fine hole, has 8000m between ultra-fine fibre 2/ m 3above high specific surface area, has high-hydroscopicity and extremely strong adsorptive power, is more conducive to the load of microorganism, thus energy fast decoupled consumes the nutritive substance in water body.The artificial aquatic weed left and right sides is fixed by hawser 10, hawser two ends are on the timber with two sides respectively, fix respectively by fixing graticule mesh 4 and fixing graticule mesh 6 before and after artificial aquatic weed, described fixing graticule mesh is optional uses permeable enclosure, permeable enclosure material is herein High Tensile Steel Wire grid, and grid-gap is 100mm*100mm.Graticule mesh vertically squeezes into river bed by a row, and diameter is that 20cm reinforced concrete pile is fixed, and spacing is 1m.Graticule mesh is separately positioned on artificial aquatic weed upstream and downstream, mainly plays fixing longitudinally (being parallel to flow direction) artificial aquatic weed, strengthens the effect of artificial aquatic weed floating island device steadiness.
Described waterplant, one or more in preferred iris, parasol grass, careless, the water opium poppy of mullet or mushroom grass.The aquatic root system of plant Absorbable rod in top utilizes the nutritive salt in water body, intensifying device soil removability, can beautify landscape effect simultaneously.
The downstream of described pretreatment unit 5 for being emergent planter units 7, the emergent growing area 14 that described emergent planter units 7 comprises ecological floating island 13 and is positioned at ecological floating island top and the bio-film colonization device 15 be positioned at bottom ecological floating island.
Ecological floating island can carry out adjustment height automatically according to river water level, creates good growing environment condition, be conducive to the survival and growth of plant to emergent.Ecological floating island bottom adopts waterplant biofilm system, the root system of plant can be the attachment interface that microorganism provides good, for various microorganism provides existence home, form microbial film, reduce the loss of microorganism in sewage treatment process, the ability of raising system antipollution load, thus greatly improve the effect of sewage disposal.
The shape that arranges of ecological floating island preferably waits eight limit types, and wait eight limit type ecological floating island forms more to meet flow direction, water impact is less, more can keep stable in the very fast region of current.
Described ecological floating island 8 adopts macromolecular material framework, and bottom, chinampa adopts watermifoil bio-film colonization device.Select the waterplant such as watermifoil as biofilm formation device, ecological, environmental protective, cost is low.
One or more in the preferred iris of described emergent, parasol grass, careless, the water opium poppy of mullet or mushroom grass.Good purification, landscape effect are good.
Often organizing chinampa diameter is 5m, often organizes ecological floating island central vertical and squeezes into stationary installation 16 to realize the fixed action to ecological floating island.Preferably, described stationary installation is firm stake.
This regional water rate of flow of fluid is obviously to slow down, and water quality is relatively better.
The downstream of emergent planter units is wind and wave resistance submerged plant planting unit 8, river bed plantation wind and wave resistance submerged plant, plays interception suspended substance, absorbed nitrogen phosphorus, the decontamination effect improving such as to enhance the transparency.The wide 8m of described wind and wave resistance submerged plant planting unit, long 20m.The preferred red line grass of described wind and wave resistance submerged plant, red line grass planting density is 130 strains/m 2, plant height 40-60cm.
Ecological pretreatment system of the present utility model is applied to river water body reparation, day output 1000m3, the average treatment effect running 2 months years is continuously as shown in table 1.
River course, table 1 Shanghai runs 2 months water quality condition contrast tables (mean value)
Water quality parameter Water inlet Water outlet Reduced rate (%)
Flow velocity (m 3/S) 0.6 0.3 50
Ammonia nitrogen (mg/L) 4.05 2.94 27.4
Total phosphorus (mg/L) 0.53 0.36 32
Chemical oxygen demand (COD) (mg/L) 46.8 35.1 25
Total nitrogen (mg/L) 5.78 4.56 21
River course, table 2 Zhejiang runs 2 months water quality condition contrast tables (mean value)
Water quality parameter Water inlet Water outlet Reduced rate (%)
Flow velocity (m 3/S) 0.5 0.27 46
Ammonia nitrogen (mg/L) 2.56 1.82 29
Total phosphorus (mg/L) 0.69 0.47 32
Chemical oxygen demand (COD) (mg/L) 36.9 26.9 27
Total nitrogen (mg/L) 3.75 2.90 22.7
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.

Claims (9)

1. the ecological pretreatment system being applied to river water body and repairing, it is characterized in that, comprise set gradually along upstream, river course to downstream direction dam body, gravel area, retain unit, pretreatment unit, emergent planter units, wind and wave resistance submerged plant planting unit.
2. ecological pretreatment system according to claim 1, is characterized in that, described dam body adopts overfall dike.
3. ecological pretreatment system according to claim 1, is characterized in that, described gravel area is filled with coarse grain gravel or macrosome gravel, and the diameter of described gravel is 50mm-100mm.
4. ecological pretreatment system according to claim 1, is characterized in that, described in retain unit and adopt permeable filter; Described permeable filter is arranged to groynes form.
5. ecological pretreatment system according to claim 1, is characterized in that, described pretreatment unit, comprises artificial aquatic weed growing area and water plant planting district waterborne under water.
6. ecological pretreatment system according to claim 5, is characterized in that, the upstream and downstream of described pretreatment unit is respectively equipped with fixing graticule mesh.
7. ecological pretreatment system according to claim 5, is characterized in that, is provided with falling body bottom described pretreatment unit.
8. ecological pretreatment system according to claim 1, is characterized in that, described emergent planter units, the emergent growing area comprising ecological floating island and be positioned at ecological floating island top and the bio-film colonization device be positioned at bottom ecological floating island.
9. ecological pretreatment system according to claim 1, is characterized in that, the submerged plant planted in wind and wave resistance submerged plant planting unit selects red line grass.
CN201520661276.4U 2015-08-28 2015-08-28 Ecological preliminary treatment system for riverway water body is restoreed Active CN205011476U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106007195A (en) * 2016-06-27 2016-10-12 浙江水利水电学院 Water quality treatment method applicable to artificial wetland landscape park
CN109258428A (en) * 2018-11-06 2019-01-25 桂林理工大学 The p.malaianus seedling fast breeding method of artificial mattress

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106007195A (en) * 2016-06-27 2016-10-12 浙江水利水电学院 Water quality treatment method applicable to artificial wetland landscape park
CN109258428A (en) * 2018-11-06 2019-01-25 桂林理工大学 The p.malaianus seedling fast breeding method of artificial mattress

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Address after: 201501 room 1957, 38 lane, Cao Li Road, Fengjing town, Jinshan District, Shanghai, 1957

Patentee after: Shanghai Taihe water environment technology development Limited by Share Ltd

Address before: 201501 room 3906, 65 lane, 65 Ring Road, Fengjing town, Jinshan District, Shanghai.

Patentee before: Shanghai Taihe Water Ecological Technology Co., Ltd.

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