CN106567361B - Control the system and method for riverway sludge deposition - Google Patents
Control the system and method for riverway sludge deposition Download PDFInfo
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- CN106567361B CN106567361B CN201610936548.6A CN201610936548A CN106567361B CN 106567361 B CN106567361 B CN 106567361B CN 201610936548 A CN201610936548 A CN 201610936548A CN 106567361 B CN106567361 B CN 106567361B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
- E02B3/023—Removing sediments
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- 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
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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- Environmental & Geological Engineering (AREA)
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- Treatment Of Sludge (AREA)
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Abstract
The present invention provides a kind of system of control riverway sludge deposition, and the accelerating sections including being located in river and deposition section, the river width D1 of the accelerating sections are less than the river width D2 of the deposition section；It is equipped with sedimentation basin in the deposition section, collection silt Accrete clearing device is equipped in the sedimentation basin.The present invention also provides a kind of methods of control riverway sludge deposition.The present invention sets about from the oriented and ordered flowing of natural situation, realization water body is followed, make full use of tide dynamic force advantage, under the premise of not changing river scale and using function, pass through the setting of landscape ecological dividing wall, change the hydraulics of existing waterway, orientation, speed and the olderly flowage of water body are realized, to reach control channel deposits deposition, scientific utilization water resource, improve water environment comprehensively.
Description
Technical field
The present invention relates to channel pollution control fields, more particularly to a kind of system and method for control riverway sludge deposition.
Background technique
Black-odor riverway influences water security, investment environment and people's life huge.The black smelly complex genesis of city river,
Pipe, face pollution control, channel cleanout etc. are received once implementing to cut a dirt in urban, and river water is shown in clearly quickly, but after having spent several years, river
Bottom silt deflation bubbling can be gradually appeared again, and blackening is smelly again for river water.To find out its cause, being caused by riverway sludge siltation.For this purpose, must not
Without whole channel cleanout, dredging in several years is primary, influences wide, especially shopping centre, residential area, channel cleanout is difficult, clearly
The foul smell, the mud transport that generate when silt etc. are all very big to surrounding environment influence.
City river siltation is the main reason for river water blackening is smelly.For example, in the river of coastal city, due to tidal bulge tide
It falls a large amount of silts carried under one's arms and various rubbish precipitates in riverbed, be relatively also easy to produce the black smelly phenomenon of siltation, therefore, some rivers
2~3 years will dredging it is primary.Analysis shows city river siltation is inevitable.For example, in Shanghai river channel sedimentation rate about 0.4
~0.6m/a, river channel sedimentation is inevitable, therefore, it is necessary to optimize river hydrodynamic force, river channel sedimentation position is controlled, to carry out
Normalization dredging.If being changed to the regular dredging in whole river to do dredging, to reduce the influence to surrounding enviroment.If right
The deposition of silt and rubbish is not administered, and is allowed to river will necessarily be made constantly to deposit, blackening is fouled in whole channel deposit.
Secondly, bottom of river channel is deposited, riverbed is raised, cause that ejectment is unsmooth, the partial cut-away in river crosses water, water delivery energy
Power reduces, and river conveyance capacity is insufficient, seriously affect dry season freshwater resources rational allocation and heavy rain during Flood Control in Certain Area
Water logging control safety.Dredging is to guarantee the function such as river water storage, water transfer to improve the irrigation of river bed, flood control, water logging control function as basic demand
Can, further promote the ability of the river self-purification.
In summary, it can be deduced that following several points:
1, coastal city river channel sedimentation is inevitable, and status is depending on depositing with water flow, and substantially entire river all generates
Siltation；
2, siltation generates black smelly, seriously affects river water quality, the production that influences the masses of the people, life；
3, regular dredging range is wide, dredging amount is big, coverage is big.
To sum up, river channel sedimentation not can avoid, dredging is inevitable.Not dredging not only influences river water quality, can also shadow
Ring river flood control water drainage etc..How to make inevitable sediment siltation, be transformed to controllable deposition position, by full river, several
Year primary dredging, is transformed to the dredging in limited section of river, big-movement, large-scale dredging is transformed to normalization, small range
Interior dredging is changed from the state of the section of siltation, dredging, to reduce the influence to environment.River is to water security, investment
Environment and people's life influence huge；If do not administered to these siltations, the water quality in river will be unable to guarantee, with regard to nothing
Method repairs Ecology, ensures water security, let alone attains the people's trust and Green Development.
Summary of the invention
In view of the foregoing deficiencies of prior art, the invention solves first technical problem be to provide a kind of control
The system of riverway sludge deposition processed, controls riverway sludge deposition, to realize that silt pollution treatment is controlled in river.
To achieve the above object, the present invention provides a kind of system of control riverway sludge deposition, including being located in river
Accelerating sections and deposition section, the river width D1 of the accelerating sections are less than the river width D2 of the deposition section；In the deposition section
Collection silt Accrete clearing device is equipped with equipped with sedimentation basin, in the sedimentation basin.
Preferably, the accelerating sections includes inlet segment and water exit end, along the river river width from water flow to, the inlet segment by
Decrescence small, the river width of the water exit end is gradually increased.
Preferably, dividing wall is equipped in the river of the accelerating sections, the dividing wall is enclosed close to shore protection and with the shore protection
Conjunction forms ecological pool, and kind is implanted with water plant in the ecological pool.
Preferably, the dividing wall includes support stake and adsorption wall, and the bottom of the support stake is inserted vertically into the river bed,
The adsorption wall is connect with the shore protection, and is enclosed dividing wall along the support stake.
Preferably, the adsorption wall includes grid framework and the wall that is fixed in the grid framework, the grid
Framework is connect with the shore protection, and the grid framework is fixed on the top on basis, and the grid framework is equipped with connection ring, described
Ring set is connected in the support stake.
Preferably, the grid framework is arranged by the staggered steel pipe of more transverse and longitudinals forms multiple agent grids, each main body
Separate mesh is equipped in grid.
Preferably, the wall includes the purifying layer being sequentially arranged from the inside to the outside, absorption drop pollution layer and purifying layer.
Preferably, the purifying layer is woven into reticular structure, the multiple fillings of absorption drop pollution layer and grid structure by bamboo chip
Absorbent packet in frame is equipped with absorption material in the absorbent packet.
Preferably, the collection silt Accrete clearing device includes fixed ring and the collection silt bag below the fixed ring, the collection
The sack of silt bag is fixed in the fixed ring, and the top of the fixed ring is equipped with hanging ring, and the hanging ring and the fixed ring are logical
Connecting rope connection is crossed, the top of the hanging ring is equipped with float, and the bottom of the collection silt bag is installed with multiple briquettings.
The invention solves second technical problem be to provide the method for control riverway sludge deposition a kind of, including such as
Lower step: S1, accelerating sections is determined in river according to river information system and deposits the position of section；S2, dividing wall is set in accelerating sections,
It surrounds the dividing wall and shore protection to form ecological pool, the river width D1 of accelerating sections is made to be less than the river width of the deposition section
D2, it is ensured that the water velocity of the accelerating sections is greater than the water velocity of the deposition section；S3, sedimentation basin is set in deposition section, and
The setting collection silt Accrete clearing device in the sedimentation basin.
As described above, it is of the present invention control riverway sludge deposition system and method, have the advantages that from
Follow natural situation, realize water body it is oriented and ordered flowing set about, make full use of tide dynamic force advantage, do not change river scale and
Under the premise of using function, by the setting of landscape ecological dividing wall, changes the hydraulics of existing waterway, realize determining for water body
To, speed and olderly flowage, to reach control channel deposits deposition, scientific utilization water resource, improve water environment comprehensively.
Tidal waterway siltation not can avoid, and dredging is inevitable.The setting for depositing section, inevitable sediment siltation is become
It is changed to the deposition in controllable position.By full river, primary dredging in several years, it is transformed to the dredging in limited section of river, will be moved greatly
The dredging of work is transformed to normalization small range dredging, is changed from the state of the section of siltation, dredging, to reduce environment shadow
It rings.Deposition section is set to the lesser river section that disturbs residents, and is convenient for dredging.Channel cleanout is the irrigation, flood control, water logging control to improve river
Function is basic demand, creates good water environment for regional economic development, guarantees the functions such as river water storage, water transfer and draining,
Further promote the ability of the river self-purification.
Detailed description of the invention
Fig. 1 is plan view of the invention.
Fig. 2 is vertical section schematic diagram of the invention.
Fig. 3 is A-A cross-sectional view in Fig. 1.
Fig. 4 is B-B cross-sectional view in Fig. 1.
Fig. 5 is the partial structural diagram of adsorption wall in the present invention.
Fig. 6 is C-C cross-sectional view in Fig. 5.
Fig. 7 is the structural schematic diagram of connecting plate.
Fig. 8 is the structural schematic diagram for collecting silt Accrete clearing device.
Fig. 9 be collect silt Accrete clearing device on can open type cover board open when structural schematic diagram.
Figure 10 is the top view for collecting silt bag.
Component label instructions
10 rivers
11 shore protections
12 ecological pools
13 water plants
20 accelerating sections
21 inlet segments
22 water exit ends
23 dividing walls
Water plant on 231 walls
24 support stakes
25 adsorption walls
26 grid frameworks
260 bases
261 connection rings
262 steel pipes
263 agent grids
264 separate mesh
27 walls
271,273 purifying layer
272 absorption drop pollution layers
30 deposition sections
31 sedimentation basins
32 collection silt Accrete clearing devices
320 fixed rings
321 collection silt bags
322 hanging rings
323 connecting ropes
324 floats
325 briquettings
326 holes
327 can open type cover board
328 reinforced bands
329 zippers
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification to be taken off
The content shown is not intended to limit the invention enforceable qualifications so that those skilled in the art understands and reads, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention
Under the effect of can be generated and the purpose that can reach, it should all still fall in disclosed technology contents and obtain the model that can cover
In enclosing.Meanwhile in this specification cited such as "upper", "lower", "left", "right", " centre " term, be merely convenient to chat
That states is illustrated, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing skill without essence
It is held in art, when being also considered as the enforceable scope of the present invention.
As shown in Figures 1 to 9, the present invention provides a kind of system of control riverway sludge deposition, including is located in river 10
Accelerating sections 20 and deposition section 30, the river width D1 of the accelerating sections 20 be less than the river width D2 of the deposition section 30, sink
Product section 30 is generally positioned to disturb residents lesser river section in river two sides non-commercial, non-residential area etc., and is convenient for dredging,
Seeking Truth increases the river cross-section of river, reduces flow velocity, makes silt and rubbish convenient for deposition, and accelerating sections 20 is generally positioned at business or occupies
Settlement, the section can be used as landscape ecological sight spot, it is desirable that are to reduce the river cross-section of river, increase flow velocity, silt rubbish is made to be not easy to sink
Product.Sedimentation basin 31 is equipped in the deposition section 30, sedimentation basin 31 generally forms after depth is dug in river bed, bottom of pond lower than river bed 0.8~
1.2m, bottom of pond both ends are connected with side slope with former river bed.The goose that diameter is greater than 200mm is completely spread in 31 bottom of sedimentation basin in the prior art
Cobble protects bottom of pond soil layer in order to dredge pump dredging, using dredge pump dredging, the disadvantage is that muddy water amount is big, slot is caused to fill vehicle
Outer freight volume it is big, therefore in the present invention in the sedimentation basin 31 be equipped with collection silt Accrete clearing device 32.
Preferably, the accelerating sections 20 includes inlet segment 21 and water exit end 22, and water flow is to the river of the inlet segment 21 along the river
Road width is gradually reduced, and can reduce the river cross-section of river, and the river width of increased water flow flow velocity, the water exit end 22 gradually increases
Greatly, the river cross-section of river can be increased, flow rate of water flow is reduced.
As shown in Figure 1 to Figure 3, it is preferable that dividing wall 23, the separation are equipped in the river 10 of the accelerating sections 20
Wall 23 is enclosed ecological pool 12 close to shore protection 11 and with the shore protection 11, and 12 inner kinds of the ecological pool is implanted with water plant 13,
Setting is biological floating bed in ecological pool 12, makes carrier, biological floating bed upper plantation canna, epipremnum aureum, Ma Li by polystyrene plates
The water plants 13 such as peace, are completely laid in pond, have catharsis to nitrogen in polluted-water, phosphorus, meanwhile, different plant growths in
The water surface, with one Lutao of composition such as the plug-in water plant of dividing wall.Preferably, the dividing wall 23 includes support stake 24 and absorption
Wall 25, the bottom of the support stake 24 are inserted vertically into the river bed, and fulcrum of the support stake 24 as dividing wall 23 supports stake
24 generally use precast reinforced concrete piles, the quadrangle of ecological pool 12 is set, by Structure Calculation determines support stake 24 radical,
Diameter and stake are long；The adsorption wall 25 is connect with the shore protection 11, and is enclosed dividing wall 23 along the support stake 24, described
Adsorption wall 25 is the dirty main member of river absorption drop, and the arrangement of adsorption wall 25 should meet not the other function for influencing river, wall
Crest level is arranged by peak level.
As shown in Figures 5 to 7, it is preferable that the adsorption wall 25 is including grid framework 26 and is fixed on the grid structure
Wall 27 on frame 26, the grid framework 26 are fixed on basis 260, and grid framework 26 is the supporting body of adsorption wall 25, by
The empty van structure of vertical grid and horizontal grid composition layering, the grid framework 26 are equipped with connection ring 261, the connection ring
261 be annulus, is generally arranged 3~5, covers in the support stake 24, to support stake 24 for support.The grid framework 26 with
The shore protection 11 connects, and depending on bank protection structure depending on, load is smaller, and when shore protection 11 is vertical type retaining wall, fulcrum is arranged on wall
It is hinged with grid framework.Preferably, the grid framework 26 is formed multiple by the staggered arrangement of stainless-steel pipe 262 of more transverse and longitudinals
Agent grid 263, each agent grid 263 is interior to be equipped with separate mesh 264, and the separate mesh 264 is made of galvanizing steel, small grid
It is determined by the size of absorbent packet 273, to guarantee that absorbent packet does not leak out and reasonable stress.The basis 260 of grid framework 26, can be used
Subaqueous work, basic 260 bottom elder generation dredgings to old soil layer are then thick using the cast-in-place 200mm of C30 underwater concrete, grid framework 26
Top movable connecting plate (referring to Fig. 7) is set, the connecting plate is in U-shape, plate wide 200mm, groove depth 150mm, and plate is long and net
The thickness of lattice frame 26 is identical, arranges downwards along grid framework longitudinal notch, so that grid framework is blocked, spacing 800mm, for people
Member's installation operation, walking use, and when needing to install absorbent packet 273, have taken connecting plate, absorbent packet 273 is from the top of grid framework
Portion is placed in the empty van of grid framework 26.
As shown in Figure 6, it is preferable that the wall 27 includes the purifying layer 271 being sequentially arranged from the inside to the outside, absorption drop pollution layer
272 and purifying layer 273.Preferably, the purifying layer 271,273 is woven into reticular structure by bamboo chip, can separate degradation river
Middle harmful substance, and space can be provided for attached growth of microorganisms in river and breeding, promote the degradation of pollutant in river；Institute
Stating absorption drop pollution layer 272 includes multiple fillings and the absorbent packet 273 in grid framework 26, is equipped with absorption in the absorbent packet 273
Cinder adsorption processing can be used in material, the absorption drop pollution layer 272, and thickness is generally higher than 500mm, by sewage treatment requirement and wall
Infiltration coefficient determines；Nylon lifting rope is arranged in the sack of absorbent packet 273, is vertically filled in the empty van of grid framework 26 after charging,
Effect is permeable and adsorbs harmful pollution for it, and after absorbent packet 273 is put down, cord end lies in separation wall top, when in order to replace
Lift；Absorbent packet 273 for storing absorption material is seepy material, geotextiles or TGXG can be used, mesh (lattice) is answered
Less than the partial size of absorption material；Using absorbent packet 273 convenient for construction and replacement, the size of absorbent packet 273 can to charge latter people
Moving is advisable, and general dividing wall is run 1 year, and bond breaker adsorbs harmful substance, and just tool is saturated, and can push up from dividing wall 23 will absorption
Bag 273 pulls out wall empty van, replaces to bond breaker.
Preferably, the side that the adsorption wall 25 is contacted with flowing water in river 10 is equipped with water plant 231 on wall, arrangement
Height can be generally purification river water body, beautification dividing wall 23 to wall top, effect is separated by design water level.Pass through water plant
The approach such as the lethal effect to the covering shading of the absorption of nutriment, plant integral shroud, root exudation confrontation algae purify river
Road water body.Flowerpot point can be used to be hung in grid framework, wall top can go up people's walking, in order to installation and replacement adsorbent material
Deng wall top preferably arranges greening, to increase the landscape effect of dividing wall 23.
As shown in Fig. 8 to Figure 10, it is preferable that the collection silt Accrete clearing device 32 is including fixed ring 320 and is located at the fixation
The sack of the collection silt bag 321 of 320 lower section of ring, the collection silt bag 321 is fixed in the fixed ring 320, the fixed ring 320
Top is equipped with hanging ring 322, and the hanging ring 322 is connect with the fixed ring 320 by connecting rope 323, the top of the hanging ring 322
Equipped with float 324, for the float 324 since the effect of buoyancy floats in river water, float 324 drives the hanging ring 322 to float on water
In.When the mud in collection silt bag 321 reaches a certain amount of, generally in lowest water level, sling by simple crane on truck crane or ship
Collect silt bag, the mud collected in silt bag 321 is cleaned out, then the collection silt bag 321 emptied is placed into the hanging ring into river
322 make for metal, and intensity needs to meet the lifting of whole bag mud.The bottom of the collection silt bag 321 is equipped with hole 326 and envelope
Close described hole 326 can open type cover board 327, it is described can open type cover board 327 and the collection silt bag 321 connected by zipper 329,
Preferably, described hole 326 and it is described can open type cover board 327 be in rectangle, it is described can open type cover board 327 a line and the collection
Silt bag 321 is integrally formed, and in addition three sides are connect by a zipper 329 with the collection silt bag 321, when collection becomes silted up, by described
Can open type cover board 327 close described hole 326, when dredging, slowly sling collection silt bag 321, the water flow in the collection silt bag 321
Out, it is hung to automobile or ship, opens bag bottom zipper 329, by the hole discharge mud to hopper dredger at bag bottom.Collect silt bag 321 generally by
Geotextiles production, the aperture of geotextiles must be formed with the mud of collection to match, and is neither largely lost mud, makes to collect again
Water energy in silt bag is discharged as early as possible.Collect the geotextiles specification of silt bag 321, intensity intensity as needed, when the intensity of bag wall is unsatisfactory for
It is required that when, reinforced bands 328 made of geotextiles, reinforced bands 328 and collection silt bag can be set on the bag bottom of collection silt bag 321 or bag wall
The geotextiles sewing of 321 bag bodies is in one, and effect is to reinforce collection 321 intensity of silt bag, and the geotextiles of bag body are adopted with reinforced bands
It is sewed and is spliced with overseam method, splicing intensity is not less than the 80% of substance intensity.The bottom of the collection silt bag 321 is installed with multiple pressures
Block 325 is typically provided with four, is separately fixed at corresponding base angle on the collection silt bag 321.The briquetting 325 is prefabricated section, can
Using concrete prefabricated, sink water, positioning as collection silt bag, weight according to the bag body of collection silt bag 321 settle it needs to be determined that.It is excellent
Selection of land, the connecting rope 323 are equipped with more, and generally four, one end of the every connecting rope 323 and the hanging ring 322 connect
It connects, the other end is connect with the fixed ring 320, and connecting rope 323 selects nylon rope.Preferably, the more connecting ropes 323 and institute
State one end being arranged circumferentially along the fixed ring 320 of the connection of fixed ring 320.Integrate 321 shape of silt bag as the big bottom of sack
Small square bag, is made by geotextiles, and the size of sack is generally 3~5m, is preferably determined according to the arrangement of collection silt bag and number, single
Briquetting 325 is arranged in a bag of bag bottom quadrangle, in order to which bag sinking is in river bed.Sack is plastic chain, the geotextiles sewing of bag wall
In on chain to forming bag.Sack quadrangle is symmetrical arranged connecting rope 323, and rope length is calculated by peak level, calculating formula L=
(h2+a2)1/2, in formula: L is rope length, and h=peak level-bed level of the river, a is long 1/2 of sack.According to river width and dredging
Condition, a river cross-section can arrange that a collection silt bag or 2 collection silt bags are arranged in juxtaposition.The setting of sedimentation basin 31 reduces stream
Speed, collection silt bag are placed in bottom of pond, can effectively easily be purged to the mud to precipitate.
The present invention also provides a kind of methods of control riverway sludge deposition, include the following steps: S1, are existed according to river information system
The position of accelerating sections 20 and deposition section 30 is determined in river 10；S2, dividing wall 23 is set in accelerating sections 20, by the dividing wall 23
It surrounds to form ecological pool 12 with shore protection 11, the river width D1 of accelerating sections 20 is made to be less than the river width D2 of the deposition section 30,
Ensure that the water velocity of the accelerating sections 20 is greater than the water velocity of the deposition section 30；S3, sedimentation basin is set in deposition section 30
31, and the setting collection silt Accrete clearing device 32 in the sedimentation basin 31, the mud for precipitating to filtering are purged.
The working principle of the utility model is as follows:
Accelerating sections and deposition section are determined according to river information system.Accelerating sections is generally positioned at business or residential area, as landscape
Ecological section, it is desirable that be to reduce the river cross-section of river, increasing flow velocity is V1, general V1Greater than river non-silting velocity, do not rushed less than river
Flow velocity, river will not be washed away again by so that silt is not easy deposition.
Deposition section is generally positioned at the lesser river section that disturbs residents, and is convenient for dredging；It requires to be to increase the river cross-section of river,
Reduce flow velocity, makes silt convenient for deposition；General flow velocity V2Sedimentary yelocity should be met, and meet V2< V1。
For example, the collection silt bag of a 4m × 4m, area 16m2, in tidal type river, can at least collect silt 0.4 × 16 within 1 year
=6.4m3, about 10t.Collect the silt of silt bag collection, dredging conveniently, equipment is simple, and maintenance replacement is convenient, cost is relatively low.According to dredging position
Size and lifting appliance ability determine the size and number of collection silt bag.When needing dredging, collection silt bag is slowly sling, is allowed in bag
Water outflow, mud can be transported by automobile, be reduced environmental pollution.
When water flow passes through accelerating sections, because this section of cross-section of river is smaller, flow velocity is larger, silt is difficult to deposit, water-borne
Silt quickly enter deposition section；In deposition section, because this section of cross-section of river is larger, flow velocity is smaller, it is convenient for sediment siltation；With dampening
Stream slowly flowing, silt be constantly deposited on collection silt bag in, when mud is a certain amount of in bag, preferably in lowest water level, can bag taking it is clear
It becomes silted up, goes in bag after mud, bag is put into sedimentation basin in situ again, and meet sedimentation next time, so recycle.
Beneficial effects of the present invention are as follows:
In river, dividing wall, the plug-in water plant of dividing wall, within the walls side water surface setting life is respectively set in two bank of accelerating sections
State floating bed planting aquatic plants, so that Lutao is integrally formed in treatment facility, not only landscape ecological can increase beautiful scenery, but also energy for river
Purify river water quality.
The advantages of this method is that long-term benefit is obvious, the adsorbent material energy waste utilization in dividing wall, safeguards replacement side
Just, cost is not high, and Non-energy-consumption generates when operation, can not only adsorb that drop is dirty, absorption harmful substance to the sewage in river, can also grow
Phase purifies river water body, and is able to maintain river diversity of organism.
From following natural situation, realizing that the oriented and ordered flowing of water body is set about, tide dynamic force advantage is made full use of, is not being changed
Under the premise of river scale and use function, by the setting of landscape ecological dividing wall, change the hydraulics of existing waterway, it is real
Orientation, speed and the olderly flowage of existing water body, to reach control channel deposits deposition, scientific utilization water resource, improve water comprehensively
Environment.Tidal waterway siltation not can avoid, and dredging is inevitable.The setting for depositing section, by inevitable sediment siltation, transformation
For the deposition that can control position.By full river, primary dredging in several years, it is transformed to the dredging in limited section of river, by big-movement
Dredging is transformed to normalization small range dredging, is changed from the state of the section of siltation, dredging, to reduce environment influence.It is heavy
Product section is set to the lesser river section that disturbs residents, and is convenient for dredging.Channel cleanout is to improve the irrigation in river, flood control, water logging control function
For basic demand, good water environment is created for regional economic development, guarantees the functions such as river water storage, water transfer and draining, into one
Step promotes the ability of the river self-purification.
Adsorbent material performance evaluation in the present invention:
1, cinder
Cinder is porous material, and structure is expanded, and has honeycomb pore, not soluble in water, be can be used as point after screening and cleaning
Barrier material can filter out macroscopic granular materials, it is good to the compartmentation of foul smell, suspended matter and substance that show color in water
It is good, it is a kind of cheap barrier material.
Separate for sewage, the comprehensive utilization of cinder greatly reduces the yield of solid waste, saved solid waste
Occupied area avoids many pollution problems caused by it, in large quantities utilize cinder, not only saved resource, the energy, but create through
Ji value.
2, bamboo raft
Bamboo raft belongs to natural ecology material, and with bioaffinity, rough surface, surface area is big.China's bamboo resource is rich
Richness, bamboo is renewable because its is at low cost, and environmental pollution is low, can auto-degradation.Bamboo material is natural, has good biology parent
And property, it is a kind of material with application potential, the Novel bamboo fiber biofilm carrier being prepared at present using bamboo fibre as raw material
It is more stable to the effect of water process.Thick bamboo tube is in blocks from mid-sectional, is woven into mesh sheet vertical pile in the empty van of dividing wall.
It is related experiments have shown that, bamboo raft is 74% to the removal rate of COD, to NO3- N removal rate is 95%, to the removal rate of TP
Reach 37%, has positive effect to river water body detergent power is improved.The microorganism content of phospholipid of bamboo chip surface attachment and dehydrogenation
Enzymatic activity is larger, can provide space for attached growth of microorganisms and breeding, can constantly promote the degradation of pollutant in river.
In conclusion the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (5)
1. it is a kind of control riverway sludge deposition system, which is characterized in that including be located at river (10) in accelerating sections (20) and
It deposits section (30), the river width D1 of the accelerating sections (20) is less than the river width D2 of deposition section (30)；The deposition
Sedimentation basin (31) are equipped in section (30), collection silt Accrete clearing device (32) is equipped in the sedimentation basin (31)；Positioned at the accelerating sections
(20) dividing wall (23) are equipped in river (10), the dividing wall (23) encloses close to shore protection (11) and with the shore protection (11)
It is formed ecological pool (12), the inner kind of ecological pool (12) is implanted with water plant (13)；The accelerating sections (20) includes inlet segment
(21) and water exit end (22), water flow is to the river width of the inlet segment (21) is gradually reduced, the water exit end (22) along the river
River width is gradually increased；The dividing wall (23) includes support stake (24) and adsorption wall (25), the bottom of support stake (24)
Portion is inserted vertically into river bed, and the adsorption wall (25) connect with the shore protection (11), and is enclosed point along the support stake (24)
Partition wall (23)；The adsorption wall (25) includes grid framework (26) and the wall that is fixed on the grid framework (26)
(27), the grid framework (26) connect with the shore protection (11), and the grid framework (26) is fixed on basic (260), institute
Grid framework (26) are stated equipped with connection ring (261), the connection ring (261) covers on the support stake (24)；The collection becomes silted up
Accrete clearing device (32) includes fixed ring (320) and the collection silt bag (321) below the fixed ring (320), the collection silt bag
Sack be fixed on the fixed ring (320), the top of the fixed ring (320) is equipped with hanging ring (322), the hanging ring
(322) it is connect with the fixed ring (320) by connecting rope (323), the top of the hanging ring (322) is equipped with float (324), institute
The bottom for stating collection silt bag (321) is installed with multiple briquettings (325).
2. it is according to claim 1 control riverway sludge deposition system, it is characterised in that: the grid framework (26) by
Staggered steel pipe (262) arrangement of more transverse and longitudinals is formed multiple agent grids (263), is equipped with and is separated in each agent grid (263)
Net (264).
3. it is according to claim 1 control riverway sludge deposition system, it is characterised in that: the wall (27) include by
It is interior to the purifying layer being sequentially arranged outside (271), absorption drop pollution layer (272) and purifying layer (273).
4. the system of control riverway sludge deposition according to claim 3, it is characterised in that: the purifying layer (271,
273) reticular structure is woven by bamboo chip, absorption drop pollution layer (272) includes multiple fillings and the suction in grid framework (26)
Pocket (273) is equipped with absorption material in the absorbent packet (273).
5. a kind of method of the system control riverway sludge deposition using control riverway sludge deposition described in claim 1,
It is characterized in that, includes the following steps: S1, determines accelerating sections (20) in river (10) according to river information system and deposit section (30)
Position；
S2, dividing wall (23) are set in accelerating sections (20), the dividing wall (23) and shore protection (11) is surrounded to form ecological pool
(12), the river width D1 of accelerating sections (20) is made to be less than the river width D2 of deposition section (30), it is ensured that the accelerating sections
(20) water velocity is greater than the water velocity of deposition section (30)；
S3, in deposition section (30) setting sedimentation basin (31), and in the sedimentation basin (31), setting collects silt Accrete clearing device (32).
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| CN109024468A (en) * | 2018-08-09 | 2018-12-18 | 上海勘测设计研究院有限公司 | The construction and its implementation method of ecology collection desilting |
| CN111335383A (en) * | 2020-04-03 | 2020-06-26 | 广州市璞境生态保护技术有限公司 | Black and odorous water body dredging system and method |
| CN115467290B (en) * | 2022-10-25 | 2023-09-01 | 成都市市政工程设计研究院有限公司 | Test method of ecological solid bed part test device |
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|---|---|---|---|---|
| CN1072232A (en) * | 1991-11-04 | 1993-05-19 | 贾福裕 | Riverbed current automatic desilting principle and device thereof |
| JPH08239815A (en) * | 1995-03-03 | 1996-09-17 | Fujita Corp | Water channel structure |
| CN203768875U (en) * | 2014-03-11 | 2014-08-13 | 四川农业大学 | Centrifugal canal silt deposition device |
| CN105787225A (en) * | 2016-05-10 | 2016-07-20 | 重庆大学 | Design method for inflow channel of cyclone grit basin with trapezoid cross section |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6020946B1 (en) * | 2015-05-13 | 2016-11-02 | 国立研究開発法人土木研究所 | River bed erosion control member and river bed erosion control method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072232A (en) * | 1991-11-04 | 1993-05-19 | 贾福裕 | Riverbed current automatic desilting principle and device thereof |
| JPH08239815A (en) * | 1995-03-03 | 1996-09-17 | Fujita Corp | Water channel structure |
| CN203768875U (en) * | 2014-03-11 | 2014-08-13 | 四川农业大学 | Centrifugal canal silt deposition device |
| CN105787225A (en) * | 2016-05-10 | 2016-07-20 | 重庆大学 | Design method for inflow channel of cyclone grit basin with trapezoid cross section |
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