CN107620295A - Mill weir structure and its implementation are crossed in the gutter that a kind of assembled mitigates non-point pollution - Google Patents
Mill weir structure and its implementation are crossed in the gutter that a kind of assembled mitigates non-point pollution Download PDFInfo
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- CN107620295A CN107620295A CN201710893813.1A CN201710893813A CN107620295A CN 107620295 A CN107620295 A CN 107620295A CN 201710893813 A CN201710893813 A CN 201710893813A CN 107620295 A CN107620295 A CN 107620295A
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Abstract
Mill weir structure and its implementation are crossed in the gutter that a kind of assembled mitigates non-point pollution, belong to farmland water conservancy works technical field, cross mill weir structure and are combined and formed by concrete pit, filtering stable section, adsorption cleaning section and biological cleaning section；Filtering stable section was arranged on front and rear two of mill weir structure, it is arranged on before and after two adsorption cleaning sections and a biological cleaning section between two filtering stable sections, the front end for crossing mill weir structure is provided with check gate, cross between mill weir structure and check gate and be connected by concrete river bottom protection transition, it is steel wire cage body structure to filter stable section, adsorption cleaning section and biological cleaning section, the external side of wire basket is provided with framework of steel reinforcement, steel wire is provided with inside wire basket body, is respectively formed and is connected together between each steel wire cage body and concrete pit.Structure of the present invention is novel, and implementation clear principle, the structure is easy to execute-in-place and later maintenance, is advantageous to improve rural rivers, the water quality in lake, to playing an important role in purification of water quality and aquatic ecological restoration.
Description
Technical field
The invention belongs to farmland water conservancy works technical field, is related to one kind and crosses mill weir structure and its implementation, specifically
Say it is to be related to a kind of assembled that can make to be purified processing before lake, river is flowed into by the agricultural drain of non-point pollution
Cross mill weir structure and its implementation.
Background technology
Since reform and opening-up, Chinese agricultural development achieves remarkable achievement, with the arable land less than the world 10%, base
Originally solves the food problem of the population of the world 22%.During developing agricultural, the use of chemical fertilizer, agricultural chemicals etc., the increasing to grain
Production played an important role.But in many areas, due to unreasonable use, considerable degree of non-point pollution is caused, it is non-
Point-source pollution has accounted for the 60%~80% of river and lake eutrophication problem, turns into the important of restricting rural and agricultural sustainable development
Factor.The national Pollutant source investigation publication announced is shown within 2010：The important pollution sources for influenceing water environment have agricultural pollution source, work
Industry source, life source and centralized pollution reducing facility, wherein most importantly agricultural pollution source, agricultural pollution source is mostly non-point source
Pollution.1324.09 ten thousand tons of the COD of agricultural pollution source emission, accounts for the 43.7% of total amount；270.46 ten thousand tons of total nitrogen (TN),
Account for the 57.2% of total amount；28.47 ten thousand tons of total phosphorus (TP), accounts for the 67.4% of total amount.Planting industry TN numbers of dropouts 159.78 in agricultural pollution
Ten thousand tons, 10.87 ten thousand tons of TP numbers of dropouts, account for the 59.1% and 38.2% of agricultural pollution source.The nitrogen and phosphorus of agriculture source emission turn into water
The main reason for body eutrophication, and the key problem of Chinese water pollution.
It is current just to greatly develop assembled architecture, promote industry restructuring upgrading.It can be decomposed at the construction field (site) every
Part out, is all carried out on the production line in workshop according to unified standard in advance, then transports to building site as " playing with building blocks "
Assemble up, allow construction industry to move towards batch production, realize the transformation built to manufacture.
In order to mitigate non-point pollution, it is very necessary that mill weir is crossed using the gutter for mitigating non-point pollution.Chinese patent
The patent of invention of application number 201110283830.6 discloses a kind of gutter for mitigating agricultural non-point source pollution and crosses mill weir, and this crosses mill weir
Mainly it is made up of sandstone filter layer, combined-type sewage ecological purifier and pervious concrete weir, combined-type sewage ecological purification
Device is arranged between sandstone filter layer and pervious concrete weir, and sandstone filter layer was arranged on mill weir in face of the head end of water,
Cross mill weir to be arranged in the flow section in gutter, cross the height and the daily water level elevation in gutter (drop stain water level elevation) of mill weir
It is equal；Though this invention can allow the water in farmland by agricultural non-point source pollution to be obtained when by crossing mill weir at a certain degree of purification
The materials such as nitrogen, phosphorus in reason, effectively removal sewage, so as to mitigate the pollution to river, lake, but the structure uses monoblock type knot
Structure, it is not easy to assemble and disassemble, is not easy to later maintenance；It is not combined with normally closed type lock, pollution water retention time is shorter, and clean-up effect is by shadow
Ring；Scavenging material is more single, and the seepage discharge that concrete crosses mill weir poorly adjusts.Therefore, for meet irrigation and water conservancy ecology
Change, the requirement of assembling, design and a kind of carry out assembled and mitigate the gutter of non-point pollution crossing mill weir structure and seem outstanding
To be important.
The content of the invention
The purpose of the present invention is to use monolithic construction for existing mill weir of crossing, and is not easy to assemble and disassemble, is not easy to later maintenance, mistake
Mill weir clean-up effect is poor, using function it is single the deficiencies of, propose that a kind of assembled mitigates the gutter of non-point pollution and crosses water
Weir structure and its implementation, mill weir structure is crossed by using assembled, build up ecological intercepting type channel system, the system architecture
Easily fill readily removable, be easy to safeguard, seepage discharge can adjust, to playing an important role in purification of water quality and aquatic ecological restoration.
The technical scheme is that：Mill weir structure is crossed in the gutter that a kind of assembled mitigates non-point pollution, including with
The mill weir of crossing forms complete irrigation pumping station, irrigation canal, gutter and the river for filling isostere system, and the mill weir structure setting of crossing exists
Close in the gutter flow section at river；It is characterized in that：It is described cross mill weir structure by concrete pit, filtering stable section,
Adsorption cleaning section and the combination of biological cleaning section are formed；Described front and rear two filtered stable section and be arranged on mill weir structure, two
It is arranged on before and after the adsorption cleaning section and a biological cleaning section between two filtering stable sections, before the mill weir structure excessively
End is provided with check gate, and described cross between mill weir structure and check gate is connected by concrete river bottom protection transition, the filtering stable section, inhales
Attached clean-up stage and biological cleaning section are steel wire cage body structure, and the external side of wire basket is provided with framework of steel reinforcement, the wire basket
Internal portion is provided with steel wire, and each be respectively formed between the steel wire cage body and concrete pit is connected together.
The check gate is closed type structure.
The filtering stable section is to fill several packed fritter stones in wire basket body to form, and is provided with above steel wire cage body
Open-close type cage door.
The adsorption cleaning section is to fill several packed zeolites in wire basket body to form, and is provided with and opens above steel wire cage body
Enclosed cage door.
The biological cleaning section is that inserted elastic filler plate is formed in wire basket body, the framework of steel reinforcement in wire basket body
Upper to set multiple slots, elastic filler plate is by the evenly distributed platy structure formed in multiple elastic solid filler intervals.
Described concrete pit is one kind in rectangular channel or vee gutter.
The implementation of mill weir structure is crossed in a kind of gutter of assembled mitigation non-point pollution, it is characterised in that is implemented
Step is as follows：
(1) construction of check gate is first carried out, check gate is closed type structure, and certain water level is retained in gutter, plays water
Self purification；When meeting torrential rain, gate is opened；
(2) concrete soil box, concrete revetment and river bottom protection；
(3) earthwork that weir is in is excavated, and flattens compacting, prefabricated concrete pit and concrete revetment are installed；
(4) set one section of steel wire cage body to be used to make filtering stable section in concrete pit, open the cage door above steel wire cage body,
The packed fritter stone of filling, on the one hand plays and stablizes permeable effect in toward wire basket body, and can be by adjusting fritter stone size and close
Solidity ensures its permeable amount；On the other hand the floating objects such as leaf in irrigation canals and ditches draining, plant stem-leaf can be obstructed, prevent that its is right
The blocking of duct device afterwards；
(5) two sections of steel wire cage bodies are continuously set to be used to make adsorption cleaning section (10) at the rear of filtering stable section steel wire cage body,
The cage door above steel wire cage body is opened, toward the interior packed zeolite of filling of wire basket body, the rack-like structure of many cavitys is formed, has strong
The performances such as adsorptivity, ion exchangeable, catalysis and acidproof heat-proof；
(6) set one section of steel wire cage body to be used to make biological cleaning section (11) at the rear of adsorption cleaning section steel wire cage body, open
Cage door above steel wire cage body, inserts elastic filler plate in wire basket body, and alga cells group energy is enough attached to filler table
Face is grown, and gradually forms set algae film, can absorb nitrogen and phosphorus element, is adsorbed excessive nutrient and is removed water pollutant
Matter, purification of water quality and aquatic ecological restoration can be promoted；
(7) set one section of steel wire cage body to be used to make filtering stable section at the rear of biological cleaning section steel wire cage body, open steel wire
Cage door above cage body, toward the interior packed fritter stone of filling of wire basket body, again serve to stable and filtration, purification effect.
Usefulness of the present invention：Mill weir knot is crossed in the gutter that a kind of assembled proposed by the present invention mitigates non-point pollution
Structure and its implementation, structure are novel, implementation clear principle, and it is detachable segmentation structure to cross mill weir structure, the knot
Structure is easy to execute-in-place and later maintenance, and seepage discharge can adjust, net by using filtering stable section, adsorption cleaning section and biology
Change the setting of section, gradually form set algae film, remove water pollution material, further improve degraded and remove in agricultural drain
The performance of nitrogen phosphorus nutrient, stable filtration, purification effect can be played, add Dissolved Oxygen in Water concentration and strengthen the performance such as acidproof,
Be advantageous to improve rural rivers, the water quality in lake, to playing an important role in purification of water quality and aquatic ecological restoration.
Brief description of the drawings
Fig. 1 is the plan-position figure that the present invention is arranged in farmland water conservancy works system.
Fig. 2 is the floor map of the present invention.
Fig. 3 is the elevational schematic view that the present invention is arranged in gutter.
Fig. 4 is structural profile illustration of the present invention.
Fig. 5 is biological cleaning segment structure schematic diagram in the present invention.
Fig. 6 is filtering stable section in the present invention and adsorption cleaning section skeleton schematic diagram.
Fig. 7 is concrete pit profile in the present invention.
In figure：Irrigation canal 1, gutter 2, cross mill weir 3, check gate 4, river 5, irrigation pumping station 6, concrete revetment 7, coagulation
Soil box 8, filtering stable section 9, absorption evolution section 10, biological cleaning section 11, concrete river bottom protection 12, weir bottom elevation 13, gutter day
Ordinary water level elevation 14, water drainage water level elevation 15, elastic solid filler 16, framework of steel reinforcement 17, steel wire 18, fritter stone 19, zeolite
20th, elastic filler plate 21.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in figs. 1-7, mill weir structure is crossed in a kind of gutter of assembled mitigation non-point pollution, including with crossing mill weir structure structure
Into complete irrigation pumping station 6, irrigation canal 1, gutter 2 and the river 5 for filling isostere system, mill weir structure setting is crossed close at river
In the flow section of gutter；Mill weir structure is crossed by concrete pit 8, filtering stable section 9, adsorption cleaning section 10 and biological cleaning section 11
Combination is formed；Filtering stable section 9 was arranged on front and rear two of mill weir structure, two adsorption cleaning sections 10 and a biological cleaning
It is arranged on before and after section 11 between two filtering stable sections 9, the front end for crossing mill weir structure is provided with check gate 4, crosses mill weir structure and section
It is connected between check 4 by the transition of concrete river bottom protection 12, filtering stable section 9, adsorption cleaning section 10 and biological cleaning section 11 are steel
Silk cage body structure, the external side of wire basket are provided with framework of steel reinforcement 17, are provided with steel wire 18 inside wire basket body, each steel wire cage body and
It is respectively formed and is connected together between concrete pit 8.
As shown in figs. 1-7, mill weir structure is crossed in a kind of gutter of assembled mitigation non-point pollution, and check gate 4 is normally closed
Formula structure；It is to fill several packed fritter stones 19 in wire basket body to form to filter stable section 9, is provided with and opens above steel wire cage body
Enclosed cage door；Adsorption cleaning section 10 is to fill several packed zeolites 20 in wire basket body to form, and is provided with above steel wire cage body
Open-close type cage door；Biological cleaning section 11 is that inserted elastic filler plate 21 is formed in wire basket body, the reinforcing bar in wire basket body
Multiple slots are set on skeleton 17, and elastic filler plate 21 is to be spaced the evenly distributed plate formed by multiple elastic solid fillers 16
Shape structure；Concrete pit 8 is one kind in rectangular channel or vee gutter.Cross the height and the daily water level elevation 14 in gutter of mill weir
It is equal.The whole permeable flow for crossing mill weir is equal to or more than farmland design day normal flow, and the elevation of weir crest for crossing mill weir is gutter
Daily water level elevation, such mill weir of crossing can also meet gutter discharge design while the daily drop stain function in farmland is met
The requirement of drainage discharge.The seepage discharge for crossing mill weir filters the compactness and finger stone of stable section by section fritter stone before and after regulation
Size is realized.
As shown in figs. 1-7, the implementation steps that mill weir structure is crossed in a kind of gutter of assembled mitigation non-point pollution are as follows：
(1) construction of check gate 4 is first carried out, check gate 4 is closed type structure, and certain water level is retained in gutter, plays water
Self purification；
(2) concrete soil box 8, concrete revetment 7 and concrete river bottom protection 12；
(3) earthwork that weir is in is excavated, and flattens compacting, prefabricated concrete pit 8 and concrete revetment (7) are installed；
(4) set one section of steel wire cage body to be used to make filtering stable section 9 in concrete pit 8, open the cage above steel wire cage body
Door, toward the interior packed fritter stone 19 of filling of wire basket body, on the one hand play and stablize permeable effect, and can be by adjusting fritter stone size
Ensure its permeable amount with compactness；On the other hand the floating objects such as leaf in irrigation canals and ditches draining, plant stem-leaf can be obstructed, are prevented
Its blocking to rear duct device；
(5) continuously set two sections of steel wire cage bodies to be used to make adsorption cleaning section 10 at the rear of the filtering steel wire cage body of stable section 9, beat
The cage door above steel wire cage body is opened, toward the interior packed zeolite 20 of filling of wire basket body, the rack-like structure of many cavitys is formed, has strong
Adsorptivity, ion exchangeable, catalysis and the performance such as acidproof；
(6) set one section of steel wire cage body to be used to make biological cleaning section 11 at the rear of the steel wire cage body of adsorption cleaning section 10, open
Cage door above steel wire cage body, elastic filler plate 21 is inserted in wire basket body, alga cells group energy is enough attached to filler table
Face is grown, and gradually forms set algae film, can absorb nitrogen and phosphorus element, is adsorbed excessive nutrient and is removed water pollutant
Matter, purification of water quality and aquatic ecological restoration can be promoted；
(7) set one section of steel wire cage body to be used to make filtering stable section 9 at the rear of the steel wire cage body of biological cleaning section 11, open steel
Cage door above silk cage body, toward the interior packed fritter stone 19 of filling of wire basket body, again serve to stable and filtration, purification effect.
Claims (7)
1. mill weir structure is crossed in the gutter that a kind of assembled mitigates non-point pollution, including forms completion filling row with the mill weir of crossing
The irrigation pumping station (6) of system, irrigation canal (1), gutter (2) and river (5), the mill weir structure setting of crossing is close at river
Gutter flow section in；It is characterized in that：The mill weir structure of crossing is by concrete pit (8), filtering stable section (9), absorption
Clean-up stage (10) and biological cleaning section (11) combination are formed；The filtering stable section (9) was arranged on front and rear the two of mill weir structure
It is arranged on before and after head, two adsorption cleaning sections (10) and a biological cleaning section (11) between two filtering stable sections (9),
The front end for crossing mill weir structure is provided with check gate (4), described to cross between mill weir structure and check gate (4) by concrete river bottom protection
(12) transition is connected, and filtering stable section (9), adsorption cleaning section (10) and the biological cleaning section (11) are steel wire cage body knot
Structure, the external side of wire basket are provided with framework of steel reinforcement (17), steel wire (18) are provided with inside the wire basket body, each steel
It is respectively formed and is connected together between silk cage body and concrete pit (8).
2. mill weir structure is crossed in the gutter that a kind of assembled according to claim 1 mitigates non-point pollution, its feature exists
In：The check gate (4) is closed type structure.
3. mill weir structure is crossed in the gutter that a kind of assembled according to claim 1 mitigates non-point pollution, its feature exists
In：The filtering stable section (9) is to fill several packed fritter stones (19) in wire basket body to form, and is set above steel wire cage body
There is open-close type cage door.
4. mill weir structure is crossed in the gutter that a kind of assembled according to claim 1 mitigates non-point pollution, its feature exists
In：The adsorption cleaning section (10) is to fill several packed zeolites (20) in wire basket body to form, and is set above steel wire cage body
There is open-close type cage door.
5. mill weir structure is crossed in the gutter that a kind of assembled according to claim 1 mitigates non-point pollution, its feature exists
In：The biological cleaning section (11) is that inserted elastic filler plate (21) is formed in wire basket body, the reinforcing bar in wire basket body
Multiple slots are set on skeleton (17), elastic filler plate (21) be it is evenly distributed by multiple elastic solid fillers (16) interval and
Into platy structure.
6. mill weir structure is crossed in the gutter that a kind of assembled according to claim 1 mitigates non-point pollution, its feature exists
In：Described concrete pit (8) is one kind in rectangular channel or vee gutter.
7. the implementation of mill weir structure is crossed in the gutter that a kind of assembled as claimed in claim 1 mitigates non-point pollution,
Characterized in that, implementation steps are as follows：
(1) construction of check gate (4) is first carried out, check gate (4) is closed type structure, and certain water level is retained in gutter, is risen
To the self purification of water；When meeting torrential rain, gate is opened；
(2) concrete soil box (8), concrete revetment (7), concrete river bottom protection（12）；
(3) earthwork that weir is in is excavated, and flattens compacting, prefabricated concrete pit (8) and concrete revetment (7) are installed；
(4) set one section of steel wire cage body to be used to make filtering stable section (9) in concrete pit (8), open above steel wire cage body
Cage door, toward wire basket body in the packed fritter stone (19) of filling, on the one hand play and stablize permeable effect, and can be by adjusting fritter
Stone size and compactness ensure its permeable amount；On the other hand the leaf in irrigation canals and ditches draining, plant stem-leaf etc. can be obstructed to float
Thing, prevent its blocking to rear duct device；
(5) two sections of steel wire cage bodies are continuously set to be used to make adsorption cleaning section at the rear of filtering stable section (9) steel wire cage body
(10) cage door above steel wire cage body, is opened, toward the interior rack-like knot filled packed zeolite (20), form many cavitys of wire basket body
Structure, there is strong adsorptivity, ion exchangeable, catalysis and the performance such as acidproof；
(6) one section of steel wire cage body is set to be used to make biological cleaning section (11) at the rear of adsorption cleaning section (10) steel wire cage body,
The cage door above steel wire cage body is opened, elastic filler plate (21) is inserted in wire basket body, alga cells group energy is enough attached to
Filler surface is grown, and gradually forms set algae film, can absorb nitrogen and phosphorus element, is removed water pollution material, can be promoted water
Matter purifies and aquatic ecological restoration；
(7) set one section of steel wire cage body to be used to make filtering stable section (9) at the rear of biological cleaning section (11) steel wire cage body, beat
The cage door above steel wire cage body is opened, toward the interior packed fritter stone (19) of filling of wire basket body, is again served to stable and filtration, purification
Effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710893813.1A CN107620295A (en) | 2017-09-28 | 2017-09-28 | Mill weir structure and its implementation are crossed in the gutter that a kind of assembled mitigates non-point pollution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710893813.1A CN107620295A (en) | 2017-09-28 | 2017-09-28 | Mill weir structure and its implementation are crossed in the gutter that a kind of assembled mitigates non-point pollution |
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| CN107620295A true CN107620295A (en) | 2018-01-23 |
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ID=61090369
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| CN201710893813.1A Pending CN107620295A (en) | 2017-09-28 | 2017-09-28 | Mill weir structure and its implementation are crossed in the gutter that a kind of assembled mitigates non-point pollution |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187286A (en) * | 2018-11-27 | 2019-01-11 | 扬州大学 | Simulate the device and its analogy method of contaminant transportation rule under soil dry-wet alternating situation |
| CN111087080A (en) * | 2019-12-20 | 2020-05-01 | 南京大学盐城环保技术与工程研究院 | Efficient phosphorus removal ecological ditch aiming at farmland non-point source pollution and paving method thereof |
| CN111439902A (en) * | 2020-06-16 | 2020-07-24 | 湖南美源环保股份有限公司 | Agricultural non-point source pollution treatment equipment and method |
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| CN102392433A (en) * | 2011-09-23 | 2012-03-28 | 扬州大学 | Drainage channel overflow weir for reducing agricultural non-point source pollution |
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| JPH0576895A (en) * | 1991-09-19 | 1993-03-30 | Sankusu:Kk | Discharged water purifying device for water channel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187286A (en) * | 2018-11-27 | 2019-01-11 | 扬州大学 | Simulate the device and its analogy method of contaminant transportation rule under soil dry-wet alternating situation |
| CN109187286B (en) * | 2018-11-27 | 2024-03-01 | 扬州大学 | Device for simulating pollutant migration rule under soil dry-wet alternation condition and simulation method thereof |
| CN111087080A (en) * | 2019-12-20 | 2020-05-01 | 南京大学盐城环保技术与工程研究院 | Efficient phosphorus removal ecological ditch aiming at farmland non-point source pollution and paving method thereof |
| CN111087080B (en) * | 2019-12-20 | 2022-06-03 | 南京大学盐城环保技术与工程研究院 | Efficient phosphorus removal ecological ditch aiming at farmland non-point source pollution and paving method thereof |
| CN111439902A (en) * | 2020-06-16 | 2020-07-24 | 湖南美源环保股份有限公司 | Agricultural non-point source pollution treatment equipment and method |
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