CN109748461A - A kind of pure and impure isolated reservoir pollution prevention and treatment overflow weir and method - Google Patents
A kind of pure and impure isolated reservoir pollution prevention and treatment overflow weir and method Download PDFInfo
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- CN109748461A CN109748461A CN201910162333.7A CN201910162333A CN109748461A CN 109748461 A CN109748461 A CN 109748461A CN 201910162333 A CN201910162333 A CN 201910162333A CN 109748461 A CN109748461 A CN 109748461A
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Abstract
The present invention relates to a kind of pure and impure isolated reservoir pollution prevention and treatment overflow weirs and method, it include: at least one level overfall dam that Reservoir Tail is set, the level height of overfall dam are as follows: the dam crest of lowermost level overfall dam is on reservoir water level in flood season low water level, in non-flood period high water level, at least level-one overfall dam is submerged, the top half of overfall dam is sandstone filler, and lower half portion is sandstone filler and purification structure.The present invention is acted on by the filtration, purification of dam body and pollution is blocked in except reservoir area intercepting the high pollution water flow of upstream in such a way that overflow weir is arranged in library tail, and pollutant is concentrated on overflow weir region, to focus on.The present invention utilizes original Reservoir region falling zone land used compared with prior art, without newly-increased land occupation, saves reservoir area land resource.Overfall dam builds no earthwork excavated volume, gathers materials on the spot, construction cost is extremely low.The construction of overfall dam can be combined with reservoir area dredging, flow-sediment regulation simultaneously, have multi-efficiency.
Description
Technical field
It is a kind of environmental Kuznets Curves and protection the present invention relates to a kind of pure and impure isolated reservoir pollution prevention and treatment overflow weir and method
Facility and method, be the facility and method of a kind of hydraulic engineering traffic control and water environment pollution prevention and treatment, be a kind of using overflowing
Flow the method that pollutant in reservoir water body is reduced on weir.
Background technique
Reservoir is to intercept the surface water bodies such as river, river, canal system by dam to raise upstream water level, has flood control, power generation, filling
The hydraulic structure of functions such as irrigate, supply water, opening the navigation or air flight.Its main feature is that can be adjusted by spillway, the structures that discharge water etc. up and down
The water of trip, and according to reservoir capacity adjustment rule complete flood season flood discharge discharge water, non-flood period combined floodgate water storage.
Water resource decaying in Northern China in Recent Years water-deficient area is serious, and many long-term low water level operations of reservoir, library tail reserves
Long falling zone.On the other hand, the Water quality before reservoir area middle section and dam is relatively preferable, and flood season interval occurs small-scale
Flood often carries a large amount of pollutant in upstream and silt, brings intermittent influence to the Water quality of Reservoir Tail.Reservoir
Therefore Regulation capacity, service life, irrigation and the safety of water supply can also decrease, especially upstream soil erosion is seriously
Area, water sand is out of proportion, and a large amount of silts, solid pollutant are accumulated for a long time in reservoir area, will seriously destroy reservoir area quality of water environment.
Summary of the invention
In order to overcome the problems of the prior art, the invention proposes a kind of pure and impure isolated reservoir pollution prevention and treatment overflow weir and
Method.The small-scale flood for carrying pollutant is isolated by weir overflow weir for the overflow weir and method, through library tail soil property
It is discharged into reservoir again after overfall dam water storage sedimentation, purification, safeguards the water quality health of reservoir area water body.Library tail soil property overfall dam blocks the mud of silt
Sand can actively reduce water level in reservoir area low water level operation or periodically and carry out mechanical dredging.
The object of the present invention is achieved like this: a kind of pure and impure isolated reservoir pollution prevention and treatment overflow weir, comprising: setting exists
At least one level overfall dam of Reservoir Tail, the level height of the overfall dam are as follows: the lowermost level overfall dam in flood season low water level
Dam crest is on reservoir water level, and in non-flood period high water level, at least level-one overfall dam is submerged, the upper half of the overfall dam
Part is sandstone filler, and lower half portion is sandstone filler and purification structure.
Further, water body in-situ repairing device is equipped with before each overfall dam.
A kind of the step of pure and impure isolated reservoir pollution control method using above-mentioned overflow weir, the method, is as follows:
The method includes flood season low water level processes, non-flood period high water level process, dredging process；
Flood season low water level process:
Overfall dams at different levels successively block upstream high pollution flood by upstream to downstream step by step, store stagnant a certain amount of intermittent small-scale
Water；
The stagnant water bodys before overfall dam of storage at different levels are filtered by sandstone, biological cleaning structures, permeate laggard storage area；
With the continuous water in upstream, the water body water level of the stagnant storage of overfall dam constantly increases, and stores the water of the stagnant water surface part before overfall dam
Body covers overfall dam jacking storage area；
Before solid impurity in flood is blocked in overfall dam；
Non-flood period high water level process:
It is submerged lower than the overfall dam under reservoir water level；
The overfall dam being submerged continues to be filtered and stop solid matter to the bottom water body of process；
The overfall dam not being submerged continues to play the effect of the overfall dam in flood season low water level；
Dredging process:
Water level is actively reduced when low water level operation or periodically in reservoir area, water before each overfall dam is discharged as far as possible；
Mechanical chipping is carried out to the solid impurity intercepted before overfall dam, and repairs biological cleaning structures.
Further, pass through water body in-situ reparation in floodage or non-floodage before each overfall dam to fill
It sets and the pollutional condition of water body is repaired.
The beneficial effect comprise that: the present invention is intercepting the height of upstream in such a way that overflow weir is arranged in library tail
Contaminated water flow is acted on by the filtration, purification of dam body and pollution is blocked in except reservoir area, and pollutant is concentrated on overflow weir area
Domain, to focus on.The present invention utilizes original Reservoir region falling zone land used compared with prior art, takes up an area without newly-increased,
Save reservoir area land resource.Overfall dam builds no earthwork excavated volume, gathers materials on the spot, construction cost is extremely low.While overfall dam
Construction can be combined with reservoir area dredging, flow-sediment regulation, had multi-efficiency, reduced investment outlay and operation cost, and reservoir area water ring is improved
Border quality provides water quality, the guarantee in water for downstream water supply, ecological environmental protection.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the low water level schematic diagram of overflow weir described in the embodiment of the present invention one；
Fig. 2 is the high water level schematic diagram of overflow weir described in the embodiment of the present invention one；
Fig. 3 is the functional block diagram of three the method for the embodiment of the present invention.
Specific embodiment
Embodiment one:
The present embodiment is a kind of pure and impure isolated reservoir pollution prevention and treatment overflow weir.The overflow weir includes: to be arranged in Reservoir Tail 1
At least one level overfall dam 2, the level height of the overfall dam are as follows: see Fig. 1 in flood season low water level 3() when lowermost level overfall dam
Dam crest is shown in Fig. 2 on reservoir water level, in non-flood period high water level 4() when at least level-one overfall dam be submerged, the overflow
The top half 101 on dam be sandstone filler, lower half portion 102 be sandstone filler and purification structure, as shown in Figure 1.
Reservoir Tail refers to the falling zone in Reservoir region water river, and library tail can quilt when water level attains to a high place before dam 5
It floods, becomes a part of reservoir filling, and the river of water can be restored to the state of flowing water when water upstream water level is low.
Overflow weir described in the present embodiment is a relatively wide concept, before may include an overfall dam and dam
Water reserve before water reserve or multiple overfall dams and each dam forms step overflow area in water river, and the present embodiment will
This step overflow area is known as overflow weir, and the structures for forming each step water reserve are known as overfall dam.It is depicted in Fig. 1
One, two, four can be set in three overfall dams and the schematic diagram of three water reserves in practice, even more to overflow
Flow dam and corresponding water reserve.
Dam upstream to library tail is reservoir area water body, and flood season reservoir area water body water level under the requirement of flood control control water level is lower,
Non-flood period reservoir area water body water level is higher.The submergence point of library tail flood limit control water flooding end is equipped with overflow weir, non-flood period Gao Shui
The part overfall dam of overflow weir can be submerged when position, become underwater overfall dam, the water reserve before dam is similarly submerged, and becomes library
The a part in area.These underwater overfall dams meeting exposure water surface in reservoir area low water level, and the water in river is stopped to form water reserve.
Overfall dam can block upstream high pollution flood, store stagnant a certain amount of small-scale water of intermittence.High pollution flood
In the solid impurities such as silt retained by overfall dam in library tail, with the continuous water in upstream, the water body water level of the stagnant storage of overfall dam is not
It is disconnected to increase.
The position of overflow weir and storage capacity need to be designed calculating according to river, upstream and downstream hydrological data, main to join
Number includes flood (sewage) total amount, and library tail sewage is detained duration, building material and biological cleaning ability etc..
It is the fillers such as soil property, sandstone that overfall dam, which builds material, is increased in overfall dam lower half portion close to overfall dam bottom
Biological cleaning and seepage flow material are set, purification structure is constituted.Since the main composition of overfall dam is soil property, sandstone, these materials
Material is available locally, and is built by equipment constructions such as bull-dozer, excavators, therefore cost is extremely low.Purification structure can also be just
Ground materials form water-permeable filter layer by gradation appropriate using the cobblestone in river.Therefore, the construction of purification structure
Cost is equally extremely low.
It is clean by being formed after soil property overfall dam, the filtering of biological cleaning structures, infiltration that stagnant water body is stored before overfall dam
Water body enters reservoir area.Water quality can be promoted by river system repair technology in situ (such as PGPR etc.) by storing stagnant water body.Reservoir area is with clear water
Based on, more than overfall dam by upstream turbidity current and high pollution flood influence based on muddy water.
Single overfall dam can obtain preferable decontamination, and multiple overfall dams can convert combining form, shape
At better effect.Such as according to the scale of river channel below dams and the gradient, multiple stepped overflow dykes and dams combinations are built, it is heavy to improve
Husky, efficiency of removing contamination.
Embodiment two:
The present embodiment is the improvement of embodiment one, is improvement of the embodiment one about the preceding water reserve of overfall dam.Described in the present embodiment
Each overfall dam before be equipped with water body in-situ repairing device.
There are many forms for water body in-situ repairing device, one or more of facilities can be chosen, to obtain good depollution
Effect.
By taking PGPR based technique for in-situ remediation as an example, ectogenic PGPR microbe granular, institute are launched before overfall dam
It states microbe granular to be made of nanotechnology and micro- coating technology, volume is uniform, needs in particle comprising activation PGPR Institute of Micro-biology
Nutriment Prebiotics(such as microelement, protein, enzyme and other carriers).The PGPR microorganism of activation is aerobic anti-
Denitrification in nitrifying process, and establish efficient food chain reduction water eutrophication substance (such as nitrogen, phosphorus and organic matter).With PGPR
Microorganism breeds in water body, and sustainable aquatic animals and plants system is automatically set up, and the pollutant in water body is locally available
Degradation, realizes the restoration of the ecosystem of water body.
Embodiment three:
The present embodiment is a kind of pure and impure isolated reservoir pollution control method using above-mentioned overflow weir, and functional block diagram is shown in Fig. 3.
The method that the present embodiment administers the pollution of library tail is:
Reservoir is in flood season, according to reservoir capacity adjustment rule, keeps low water level in reservoir area.Flood season upstream high pollution, high concentrtion flood
Water intermittently imports reservoir area, and small-scale flood is met overfall dam water level at garage entrance and is elevated, as upland water increases, the
One overfall dam stores spill-over stream, by the next overfall dam of the flood axis of preliminary sedimentation, by the pure and impure separation of staged multiple groups,
Water body after filtration, purification enters reservoir area, reduces the silt content and pollutant burden of reservoir area, has achieved the purpose that pure and impure split.
Reservoir is in non-flood period, and according to reservoir capacity adjustment rule, non-flood period keeps reservoir area high water level.In reservoir area high water level shape
Under state, the overfall dam in downstream will be submerged, but its bottom water body is still separation, and sandstone filler and water purification are constructed
Object still plays isolation and the purification function of the pure and impure water body of bottom.It still plays in the overfall dam for being higher than reservoir water level by upstream
The effect that high pollution water body is retained, purified.If water body restoration device in situ is arranged before each overfall dam, these water bodys in situ
Prosthetic device being capable of highly effective pollution administration promotion water quality.
In the dry season, interception upland water appropriate, as far as possible water before discharge overfall dam utilize artificial and engineering machinery pair
The silt and solid pollutant being intercepted before overfall dam are cleared up, while clearing up or replacing purification structure, can be just
Normal performance filtering, clean-up effect.
Specific step is as follows for the method:
The method includes flood season low water level processes, non-flood period high water level process, dredging process.This is overfall dam in different times
State.In low water level, all overfall dams are all exposed on the water surface, and the overfall dam of portion downstream is submerged when high water level, and
Overfall dam in upstream is also exposed on the water surface.And dredging process is then in dry season cleaning silt and other pollutants.
Flood season low water level process:
Overfall dams at different levels successively block upstream high pollution flood by upstream to downstream step by step, store stagnant a certain amount of intermittent small-scale
Water.Since overfall dam is arranged step by step, the water from river upstream is also before entering each overfall dam step by step.
The stagnant water bodys before overfall dam of storage at different levels are filtered by sandstone, biological cleaning structures, permeate laggard storage area.?
Come in the lesser situation of water, since the purpose of overfall dam does not intercept water flow, intercepts solid pollutant and mud in water
Sand, so overfall dam is that permeable, intercepted water flow also can flow through overfall dam by infiltration, even if the water level before overfall dam
Do not reach dam crest, water flow also can flow to reservoir area by dam body.
With the continuous water in upstream, the water body water level of the stagnant storage of overfall dam constantly increases, and stores the stagnant water surface part before overfall dam
Water body cover overfall dam jacking storage area.When upland water amount is larger, the water level before each overfall dam can be gradually increased, directly
To covering weir crest.
Before solid impurity in flood is blocked in overfall dam.Although water flow covers weir crest, the solid matter in water flow will
It can be intercepted by overfall dam, while the stagnant effect of the storage before overfall dam blocks the quick flowing of water flow, makes sediment deposition, effectively
Water body is purified.
Non-flood period high water level process:
It is submerged lower than the overfall dam under reservoir water level.When reservoir area reaches high water level, part overfall dam is submerged, but still
There is overfall dam to be in the water surface, this is will to generate two kinds of situations.
The overfall dam being submerged continues to be filtered and stop solid matter to the bottom water body of process.Although overfall dam quilt
It floods, but it filters and also equally plays a role by effect to bottom water body.
The overfall dam not being submerged continues to play the effect of the overfall dam in flood season low water level.The overfall dam not being submerged by
In on the water surface, hydraulics do not change, and still will continue to play catharsis.
Dredging process:
Water level is actively reduced when low water level operation or periodically in reservoir area, water before each overfall dam is discharged as far as possible.The process of draining
It does not need actually to employ the artificial mechanical device such as water pumper, it, being capable of cracking row if the penetrating power of each overfall dam is good
Water before dam out.
Mechanical chipping is carried out to the solid impurity intercepted before overfall dam, and repairs biological cleaning structures.Here machinery
Cleaning is corresponding with water flow cleaning, it may be assumed that is not cleared up automatically using water flow, by artificial or engineering mechanical device
It is cleared up, such as using engineering mechanical devices such as bull-dozer, excavator or sand sucker tools, the pollutant before dam is carried out clear
Reason.Since overfall dam itself is gathered materials on the spot construction, also according to the situation at scene in scale removal process, water-bed remove is utilized
Stone and impurity accumulate overflow weir, construct purification structure.
Example IV:
The present embodiment is the improvement of embodiment three, is improvement of the embodiment three about overfall dam.It is each described in the present embodiment to overflow
Pass through water body in-situ repairing device in floodage or non-floodage before stream dam to repair the pollutional condition of water body.
Water body in-situ repairing device is launched, the PGPR microorganism being activated and organized enzyme can be discharged into water.The work
Property enzyme facilitate activation, promote water body in original microbial activity for having contaminant degradation function.With PGPR microorganism
With the breeding for having contaminant degradation functional microorganism, water transparency is improved, and sunlight is shining into water, original spore in water body
Botanical system is established under photosynthesis；The microorganism being activated discharges oxygen in metabolic processes, increases oxygen-containing in water
Amount, planktonic organism, benthon, total fish catches will increase 20% or more, and aquatic animal system is established therewith.PGPR is repaired in situ
Recovering technology can not only remove solid suspension in water removal, can also remove the anaerobic bacteria coating of bed mud, keep bed mud soil particle exposed,
Not only the sustainable growth of water plant had been facilitated, but also can provide and inhabit for fish, spawning place.Content of organics in bed mud
Sharply decline, can also further decrease the workload of mechanical dredging.
Finally it should be noted that being only used to illustrate the technical scheme of the present invention and not to limit it above, the common skill of this field
Art personnel will recognize that the embodiments described herein is to help reader and understands implementation method of the invention, it is understood that
It is not limited to such specific embodiments and embodiments for protection scope of the present invention.Those skilled in the art can root
Various various other specific variations and combinations for not departing from essence of the invention are made according to the technical disclosures disclosed by the invention, this
A little variations and combinations are still within the scope of the present invention.
Claims (4)
1. a kind of pure and impure isolated reservoir pollution prevents and treats overflow weir characterized by comprising be arranged at least the one of Reservoir Tail
Grade overfall dam, the level height of the overfall dam are as follows: in flood season low water level the dam crest of lowermost level overfall dam reservoir water level it
On, in non-flood period high water level, at least level-one overfall dam is submerged, and the top half of the overfall dam is sandstone filler,
Lower half portion is sandstone filler and purification structure.
2. overflow weir according to claim 1, which is characterized in that be equipped with water body in-situ reparation before each overfall dam
Device.
3. a kind of pure and impure isolated reservoir pollution control method using overflow weir described in claim 2, which is characterized in that described
The step of method, is as follows:
The method includes flood season low water level processes, non-flood period high water level process, dredging process；
Flood season low water level process:
Overfall dams at different levels successively block upstream high pollution flood by upstream to downstream step by step, store stagnant a certain amount of intermittent small-scale
Water；
The stagnant water bodys before overfall dam of storage at different levels are filtered by sandstone, biological cleaning structures, permeate laggard storage area；
With the continuous water in upstream, the water body water level of the stagnant storage of overfall dam constantly increases, and stores the water of the stagnant water surface part before overfall dam
Body covers overfall dam jacking storage area；
Before solid impurity in flood is blocked in overfall dam；
Non-flood period high water level process:
It is submerged lower than the overfall dam under reservoir water level；
The overfall dam being submerged continues to be filtered and stop solid matter to the bottom water body of process；
The overfall dam not being submerged continues to play the effect of the overfall dam in flood season low water level；
Dredging process:
Water level is actively reduced when low water level operation or periodically in reservoir area, water before each overfall dam is discharged as far as possible；
Mechanical chipping is carried out to the solid impurity intercepted before overfall dam, and repairs biological cleaning structures.
4. according to the method described in claim 3, it is characterized in that, not flooded in floodage or before each overfall dam
State passes through water body in-situ repairing device and repairs to the pollutional condition of water body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910162333.7A CN109748461B (en) | 2019-03-05 | 2019-03-05 | Reservoir pollution prevention overflow weir and method for separating clear from turbid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910162333.7A CN109748461B (en) | 2019-03-05 | 2019-03-05 | Reservoir pollution prevention overflow weir and method for separating clear from turbid |
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| CN109748461B CN109748461B (en) | 2020-12-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576330A (en) * | 2020-05-18 | 2020-08-25 | 郭萌 | Sand-adjusting dredging method for river treatment |
| CN111576331A (en) * | 2020-05-18 | 2020-08-25 | 郭萌 | River is administered with transferring husky desilting device |
| CN114737528A (en) * | 2022-06-14 | 2022-07-12 | 中国科学院、水利部成都山地灾害与环境研究所 | Water-stone separation expansion type debris flow silt stopping field and construction method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010000343A (en) * | 2000-09-15 | 2001-01-05 | 한상관 | Method of natural water quality improvement using multistep storage apparatus |
| CN105297671A (en) * | 2015-09-30 | 2016-02-03 | 山东省分析测试中心 | Ecological comprehensive treatment system of northern mountain river channel and construction method thereof |
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2019
- 2019-03-05 CN CN201910162333.7A patent/CN109748461B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010000343A (en) * | 2000-09-15 | 2001-01-05 | 한상관 | Method of natural water quality improvement using multistep storage apparatus |
| CN105297671A (en) * | 2015-09-30 | 2016-02-03 | 山东省分析测试中心 | Ecological comprehensive treatment system of northern mountain river channel and construction method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576330A (en) * | 2020-05-18 | 2020-08-25 | 郭萌 | Sand-adjusting dredging method for river treatment |
| CN111576331A (en) * | 2020-05-18 | 2020-08-25 | 郭萌 | River is administered with transferring husky desilting device |
| CN114737528A (en) * | 2022-06-14 | 2022-07-12 | 中国科学院、水利部成都山地灾害与环境研究所 | Water-stone separation expansion type debris flow silt stopping field and construction method thereof |
| CN114737528B (en) * | 2022-06-14 | 2022-08-23 | 中国科学院、水利部成都山地灾害与环境研究所 | Water-stone separation expansion type debris flow silt stopping field and construction method thereof |
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| CN109748461B (en) | 2020-12-29 |
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