CN204737850U - Accuse system that cuts is synthesized to typical case's farmland non -point source pollution thing " point - line - face " - Google Patents

Accuse system that cuts is synthesized to typical case's farmland non -point source pollution thing " point - line - face " Download PDF

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Publication number
CN204737850U
CN204737850U CN201520277212.4U CN201520277212U CN204737850U CN 204737850 U CN204737850 U CN 204737850U CN 201520277212 U CN201520277212 U CN 201520277212U CN 204737850 U CN204737850 U CN 204737850U
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China
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ditches
ecological
irrigation canals
pond
canal
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孙井梅
陈育超
张志钢
许丹宁
汤茵琪
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Water Utilities Technology Popularization Center Jinnan District Tianjin
Tianjin University
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Water Utilities Technology Popularization Center Jinnan District Tianjin
Tianjin University
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The utility model discloses an accuse system that cuts is synthesized to typical case's farmland non -point source pollution thing " point - line - face " is provided with an irrigation canals and ditches between the farmland, between the pond or farmland and pond, rainfall runoff compiles the tap drain canal through an irrigation canals and ditches, and rethread tap drain canal gets into the river course, is provided with the ecological pool of flood storage between tap drain canal and river course, in each irrigation canals and ditches mouth and flood storage ecological pool entry, irrigation canals and ditches and river surface region respectively, interval or crisscross is provided with three -dimensional plant grid, irrigation canals and ditches all are ecological irrigation canals and ditches, the parallelly connected flood discharge canal that is provided with between the ecological pool of flood storage and income river culvert, there is the ecological bed that floats of solar energy aeration on the ecological pool of flood storage and whole river surface regional setting, still sets up glazed catalytic oxidation board in order to get rid of difficult degradation organic pollutant. The utility model discloses extensively be applicable to various farmland non -point source pollution's improvement to start with from " point - line - face " each part, cut the accuse from the source, both alleviated the waterlogging -resistant pressure of flood control, handled the great initial stage rainwater of pollution load again.

Description

A kind of typical agricultural non-point pollution thing " point-line-face " comprehensively cuts Ore-controlling Role
Technical field
The utility model is administered about Farmland Flow Pollution thing, particularly a kind of comprehensive section Ore-controlling Role for typical agricultural non-point pollution thing.
Background technology
Widespread pollution from the overuse of fertilizers and pesticides in rural area and agricultural non-point pollution, mainly comprise the aspects such as Agricultural chemical pollution (chemical fertilizer, agricultural chemicals etc.), centralization-breeding factory pollution, domestic sewage in rural areas pollution.According to first time national Pollutant source investigation data display, in China's discharge of major pollutant amount, the principal pollutant amounts such as COD, N, P that agriculture production (containing livestock culture industry, culture fishery and plant husbandry) is discharged, far exceed industry and life source, become first of source of pollution.
In widespread pollution from the overuse of fertilizers and pesticides in rural area, source, face, farmland based on farmland is due to the unreasonable and excessive use of the material used for agriculture such as agricultural chemicals, chemical fertilizer, mulch film, in precipitation or irrigation process, pollutent enters neighbouring water body by agricultural surface runoff, farmland drainage and subsurface wastewater infiltration system, cause water pollution, the widespread pollution from the overuse of fertilizers and pesticides in rural area problem caused becomes increasingly conspicuous, become the major cause of water pollution, lake eutrophication, badly influence the quality of water environment of China, ecotope is healthy, constrain the Sustainable development of China's economic society.The control of widespread pollution from the overuse of fertilizers and pesticides in rural area is not only become to the most important thing of water pollution control, also progressively become the key subjects of modern agriculture and social sustainable development.
The Traditional Ecological measure of current reply agricultural non-point pollution has wetland engineering, Riparian Buffer Zone control techniques, artificial many pools technology etc., and these measures all have obvious effect, but all also there is the restriction in some defects and suitability.Mainly comprise following problem: the situation in (1) different croplands pollution of area source region is different, the ecological control used is also more numerous and diverse, do not formed and unified effective cut control thinking, cause a lot of area exist when the measure of selection ecological intercepting technology be not suitable for, process not up to standard, take up an area the problems such as unreasonable; (2) do not have the overall situation forming " point-line-face " to cut control to see, when interception measure is set, only embody a wherein part.Such as source, face, farmland, source the earliest should be field enter irrigation canals and ditches point, a lot of ecological intercepting measure does not cut control from basic source; (3) do not think better of the space output characteristic of source, face, farmland runoff pollution, the setting of interception measure does not have specific aim.Runoff SS and TN (total nitrogen), the TP (total phosphorus) of little watershed have good linear dependence, and therefore, little watershed, should arrange to cut the facilities such as dirty ecological revetment nearby; Large watershed, should arrange and fall the dirty facility such as delaying basin, ecological canal based on ecology; (4) the time output characteristic of source, face, farmland runoff pollution is held not, do not handle the relation that early-stage rainwater is waterlogging-resistant with flood control well.The pollutents such as SS, N, P all have certain first flush effects, therefore need emphasis process, and often in heavy rain situation, because safety problem, need to drain off floodwaters flood discharge for master, have therefore occurred the situation of early-stage rainwater without the direct discharge of abundant process.
For overcoming the above problems, now proposing a kind of typical agricultural non-point pollution " point-line-face " and comprehensively cutting Ore-controlling Role.
Agricultural non-point pollution region generally includes the dissimilar boxed area such as farmland, fish pond, forest land, have irrigation canals and ditches between region, when rainfall or irrigation, the water major part that these regions fail to hold is introduced into an irrigation canals and ditches, import tap drain canal again, finally enter neighbouring river course or lake.Therefore, there is certain typicalness in agricultural non-point pollution region, makes a kind of general pollution control system of design become possibility.
Rainfall is also the important factor affecting agricultural non-point pollution.In water yield feature, heavy or torrential rain due to short period of time internal diameter streamflow excessive, overriding concern flood control waterlogging-resistant, need set up flood storage facility or carry out flood discharge; On water quality characteristics, rainfall brings the pollutents such as SS, nitrogen, phosphorus into runoff to the impact of soil, and directly enter river water body with runoff, and rainfall has obvious first flush effects to pollutent, and the output of the pollutents such as SS, nitrogen, phosphorus concentrates on the rainfall initial stage.Therefore, be necessary to consider the storm runoff water yield, water quality output characteristic, design corresponding section control means.
Summary of the invention
The purpose of this utility model, do not form unified effective comprehensive section control means for current most of agricultural non-point pollution region, and do not handle well early-stage rainwater and flood control waterlogging-resistant relation, to pollutent export time and space feature hold inadequate present situation, propose a kind of typical agricultural non-point pollution " point-line-face " and comprehensively cut Ore-controlling Role, different agricultural non-point pollution regions can be widely used in, above-mentioned Problems Existing can be solved again.
This comprehensively cuts in control techniques, what " point " was corresponding is 1. farmland, fish pond etc. enter irrigation canals and ditches point; That 2. props up irrigation canals and ditches becomes owner of irrigation canals and ditches point; 3. tap drain canal enter heavy rain flood storage ecological pond point; 4. river mouth is entered.What " line " was corresponding is 1. prop up irrigation canals and ditches; 2. tap drain canal.What " face " was corresponding is the 1. heavy rain flood storage ecological pond that connects of tap drain canal end; 2. river surface region, river mouth and river surface region, arterial highway, whole river is entered.Corresponding " point ", " line ", " face " three distinct portions, have several different processing units respectively, and these unit and can need to be arranged in different positions according to field condition.These processing units have played different section control effects targetedly in different positions, form unified effective comprehensive cutting and control.
The utility model is achieved by following technical solution.
A kind of typical agricultural non-point pollution thing " point-line-face " comprehensively cuts Ore-controlling Role, comprise farmland, fish pond, irrigation canals and ditches and river course, it is characterized in that, an irrigation canals and ditches 2 is provided with between described farmland and farmland, between fish pond and fish pond or between farmland and fish pond, rainfall runoff enters an irrigation canals and ditches 2 by the irrigation canals and ditches mouth in farmland and fish pond, then is pooled to tap drain canal 1 respectively by an irrigation canals and ditches 2; Between the end and river course 4 of tap drain canal 1, be provided with flood storage ecological pond 3, river course 4 place that enters of flood storage ecological pond 3 is provided with into river culvert 5, and the ingress entering river culvert 5 is provided with clough;
Enter an irrigation canals and ditches mouth in farmland, irrigation canals and ditches mouth become owner of by an irrigation canals and ditches, tap drain canal enters flood storage ecological pond mouth and is respectively arranged with three-dimensional plant grid 6; And three-dimensional plant grid 6 is arranged at interval in irrigation canals and ditches and tap drain canal, entering staggered arrangement three-dimensional plant grid 6 in the river surface region outside river culvert 5;
Described three-dimensional plant grid 6 is the ship type three-dimensional arrangement of a hollow trapezoid shape, and its top is provided with rectangle upper side frame, and its underpart is provided with rectangular base frame, and be connected by perpendicular doorjamb between upper side frame and boundary frame area, the long limit of upper side frame is greater than the long limit of correspondence of boundary frame area; The inside of three-dimensional plant grid is provided with enough soft wickers;
Described tap drain canal 1 and an irrigation canals and ditches 2 are all ecological canal, the cross section of this ecological canal is inverted trapezoidal, and canal wall is that middle part right hexagonal steel-concrete brick with holes is built and formed, and is laid at the bottom of canal by rubble or cobble, mold is filled in Qu Bi and canal bottom, and mold plants emergent;
Described flood storage ecological pond 3 is aerobic-double oxygen the ecology pond systems, and surrounding bank slope and the bottom of this aerobic-oxygen the ecology pond systems of holding concurrently are provided with impermeable building block, and the central authorities of impermeable building block are provided with groove and planting plants; Ecological pond is divided into aerobic zone 7, floating bed district 8 and mattress district 9 by two deflected current walls by this system, and floating bed district 8 and mattress district 9 form aerobic area, and three regions are staged, have different water depth; The water surface in floating bed district is provided with aeration biological floating bed 11, plants emergent above it; Ecological mattress 12 is set in the water in mattress district, above it, plants planting submerged plant; Be provided with regulating sluice and three-dimensional plant grid 6 in the ingress of flood storage ecological pond 3, the exit of flood storage ecological pond 3 is also provided with regulating sluice; Before the regulating sluice of the ingress of flood storage ecological pond 3 and enter between river culvert 5 to be arranged in parallel floodway 10, so as when to exceed flood storage ecological pond capacity of flood storage timely carrying-off flood peak; The ingress of this floodway 10 is also provided with regulating sluice and three-dimensional plant grid 6;
Flood storage ecological pond, the river surface region entering river culvert and whole river surface region are provided with solar energy aeration biological floating bed 11; Solar panels are provided with, for the aerating apparatus of floating bed provides power on solar energy aeration is biological floating bed; Also be provided with photochemical catalytic oxidation plate to remove Persistent organic pollutants.
The emergent of described ecological canal is the emergent of mater convolvulus, Chinese celery, wild rice stem class.
Described ecological canal can placement part spiral shell, crucian, loach class shallow water fishery products.
Aerobic-double oxygen the ecology pond systems of described flood storage ecological pond 3, its aerobic zone 7 average depth is 0.8m, and floating bed district 8 average depth is 1.2m, and mattress district 9 average depth is 1.5m.
Compared with the utility model cuts control means with traditional agricultural non-point pollution, provide a kind of comprehensive section Ore-controlling Role being widely used in various agricultural non-point pollution, and start with from " point-line-face " various piece, devise different cutting targetedly and control facility, accomplished to cut control from source; In addition, for the space output characteristic of agricultural non-point pollution, for little watershed, arrange to cut the facilities such as dirty three-dimensional plant grid nearby, for large watershed, arrange and fall the dirty facility such as ecological canal, ecological pond based on ecology; Finally, also for the time output characteristic in source, face, farmland, be provided with flood storage ecological pond, both alleviated the pressure that flood control is waterlogging-resistant, processed again the early-stage rainwater that pollution load is larger.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of typical agricultural non-point pollution thing " point-line-face " of the utility model comprehensively cuts Ore-controlling Role;
Fig. 2 three-dimensional plant grid structural representation;
Fig. 3 be ecological canal structural representation;
Fig. 4 is the structural representation of flood storage ecological pond;
Fig. 5 is biological floating bed structural representation.
Reference numeral of the present utility model is as follows.
1---tap drain canal 2---irrigation canals and ditches
3---flood storage ecological pond 4---river course
5---entering river culvert 6---three-dimensional plant grid
7---aerobic zone 8---floating bed district
9---mattress district 10---floodway
11---aeration biological floating bed 12---ecological mattress
Embodiment
Below in conjunction with concrete case study on implementation, be further elaborated the utility model, this embodiment only for illustration of the utility model, and does not limit use range of the present utility model.
Specific embodiment is region, a slice farmland, is made up of some plots of rice terraces, irrigation canals and ditches, and branch canal imports tap drain canal, tap drain canal with enter river culvert and be connected.After the main pollution of area source in this area comes from rainfall, rainfall runoff carries the pollutents such as SS, N, P in rice terrace and imports irrigation canals and ditches and a tap drain canal, and imports river course (see Fig. 1) eventually through entering river culvert.
Area source pollutants " point-line-face " is adopted comprehensively to cut this pollution of area source of Ore-controlling Role, first enter irrigation canals and ditches mouth at rice terrace, irrigation canals and ditches mouth become owner of by branch canal and enter the positions such as river culvert and be provided with three-dimensional plant grid respectively, and interval 50m arranges three-dimensional plant grid in tap drain canal.When rainfall is carried out, the water in rice terrace is through the interception of three-dimensional plant grid, and particulate form pollutent such as SS is fully retained, and cuts N, P of leaving and being attached on SS simultaneously.Due to the detention effect of three-dimensional plant grid, flow rate of water flow slows down, and the time that charge for remittance imports river course is extended, and the hydraulic detention time in irrigation canals and ditches increases, and the willow cauline leaf in three-dimensional plant grid is degraded to solubilised state N, P.Three-dimensional plant grid serves drop effect to current, adds oxygen in water concentration, also improves treatment effect.Arrange three-dimensional plant grid, improve the soil erosion under rain fall and pollution of area source, draw materials easily, cost is lower simultaneously, make simple, move, dismantle, reclaim more convenient, particularly applicable in Rural areas.After arranging three-dimensional plant grid, it is that 15 ~ 25%, TP clearance can reach 15 ~ 25% that the clearance of SS can reach 60 ~ 75%, TN clearance.
Above-mentioned three-dimensional plant grid is about the thick willow limb of 10cm by the ship type structure (see Fig. 2) of thin wire fourth of the twelve Earthly Branches one-tenth hollow by diameter, fill in enough soft wickers in inside.The physical size of grid is determined according to the size of the position of placing and irrigation canals and ditches, and when placing in irrigation canals and ditches, height of grid is a little more than wet season irrigation canals and ditches elevation of water surface.The reference dimension that farmland enters irrigation canals and ditches mouth grid is: long 50cm, wide 40cm, high 40cm; In irrigation canals and ditches, the reference dimension of grid is: long 100cm, wide 60cm, high 60cm; The reference dimension entering culvert place, river grid is: long 200cm, wide 120cm, high 120cm.
Three-dimensional plant grid can be arranged in each position corresponding to " point ", and namely farmland enters irrigation canals and ditches mouth, irrigation canals and ditches mouth become owner of by irrigation canals and ditches, tap drain canal enters flood storage ecological pond mouth, and separately in irrigation canals and ditches, interval is arranged, and is entering river surface region, river mouth staggered arrangement.
This three-dimensional plant grid has following characteristics:
(1) this three-dimensional plant grid has good crown_interception to particulate matter such as the obvious SS of first flush effects, has retained the nitrogen be attached on SS, phosphorus simultaneously.
(2) except trapped particles state pollutent, wicker and willow limb all have stronger energy for growth in water, and its blade and root system have certain removal ability to the nitrogen of solubilised state, phosphorus.
(3) thick wicker is irregular, and three-dimensional plant grid framework has natural space, and inner soft wicker also has natural space, has certain flow resistance but can not affect the needs drained off floodwaters.Therefore this three-dimensional plant grid has the effect alleviating partial water Flow Velocity, increases the treatment time of ecological canal and subsequent disposal measure.
(4) three-dimensional plant height of grid sets according to wet season irrigation canals and ditches elevation of water surface, can cross flow go over when the water yield is larger, also can form drop on a small scale, increase oxygen enrichment effect.
(5) this three-dimensional plant grid is drawn materials easily, and cost is lower, make simple, move, dismantle, reclaim more convenient.
In addition, original tap drain canal is reconstructed into ecological canal, during discharge series, current have certain water conservancy residence time in ecological canal, and the plant and animal in irrigation canals and ditches has carried out sufficient degraded to pollutents such as N, P.The laying of Concrete brick and cobble simultaneously decreases water and soil and washes away.The tap drain canal of this ecological canal be 15 ~ 30%, TN clearance is 25 ~ 40%, TP clearance to the clearance of SS is 20 ~ 35%.
Improved ecological canal as shown in Figure 3, cross section is inverted trapezoidal, canal wall is that middle part right hexagonal steel-concrete fragment of brick with holes is built and formed, laid by rubble or cobble at the bottom of canal, mold is filled in Qu Bi and canal bottom, emergent such as plantation mater convolvulus, Chinese celery, wild rice stem etc., in addition can the shallow water fishery products such as placement part spiral shell, crucian, loach.
Ecological canal has following characteristics:
(1) canal wall Concrete brick with holes is laid; current washing away trench sidewall can not only be reduced; and can ensure that the matter energy of trench sidewall both sides exchanges; ecological canal sidewall has a large amount of hole, is conducive to Crop diversity growth, and the hole in the middle part of Concrete brick has the good performance such as ventilative, permeable; infiltration plant desired nutritional; adapt to green plants growth, can vegetation operation be carried out, there is protection of the environment, improve the function of ecological condition.
(2) the ditch wetland ecosystem be made up of emergent, shallow water fishery products etc., has good rejection effect to the silt in agricultural run-off, nitrogen, phosphorus.
(3) the shallow water fishery products such as spiral shell, crucian, loach are parts for Wetlands ecosystems, and adding of they is conducive to the stable of the ditch wetland ecosystem, promotes the purification of irrigation canals and ditches drainage pollutes thing
(4) nutritive substance such as nitrogen, phosphorus facilitates the growth of emergent and shallow water fishery products, provides certain agriculture, fish product, and the harvesting of plant also avoids plant decay after stain thing to return water body.
(5) in ecological canal, each about 50-100m arranges a three-dimensional plant grid, slow down flow velocity, adds the hydraulic detention time of ecological canal, and forms drop, adds dissolved oxygen concentration, improves treatment effect.
Secondly, be provided with flood storage ecological pond at tap drain canal end, i.e. aerobic-oxygen the ecology pond systems (as shown in Figure 4) of holding concurrently.Its surrounding bank slope and bottom are provided with impermeable building block, and the central authorities of impermeable building block are provided with groove and planting plants; By two deflected current walls, ecological pond is divided into aerobic zone, floating bed district and mattress district, floating bed district and composition aerobic area, mattress district, three regions are staged, there is different water depth, aerobic zone 7 average depth is 0.8m, and floating bed district 8 average depth is 1.2m, and mattress district 9 average depth is 1.5m; It is biological floating bed that the water surface in floating bed district is provided with aeration, plants emergent above it; In the water in mattress district, ecological mattress is set, above it, plants planting submerged plant.At the rainfall initial stage, play capacity of flood storage, avoid the early-stage rainwater that between storm period, the too much treated pollution level that is not able to do in time is higher directly to enter river course.If rain time is longer, rainfall is comparatively large, then, after storing full early-stage rainwater, open the floodway led directly to into river culvert mouth, later stage rainwater less for pollution level is directly entered river course.Water in ecological pond can discharge into river course again or carry out farmland and recharge behind the some skies of process.Flood storage ecological pond also has attractive in appearance, that floor space is little, processing efficiency is high feature, adopt deflected current wall segmentation pool body thus add hydraulic detention time, three subregions can increase nitrogen, phosphorus processing efficiency, improve ecological pond stability and capacity of resisting impact load, biological floating bed and ecological mattress array mode is adopted to improve plant total amount, further raising Pollutant Treatment ability, by the plant in reasonable disposition ecological pond, animal, increase ecological pond attractive in appearance and recreational, set up the complex ecological pool system of biological, that chemistry is integrated aquatic animals and plants.Single flood storage ecological pond can reach 15 ~ 30% to the removal ability of TN, can reach 15 ~ 30% to the clearance of TP.
This flood storage ecological pond has following characteristics:
(1) feature that flood storage ecological pond is maximum can flexibly tackle different rain fall.At the rainfall initial stage, play capacity of flood storage, avoid the early-stage rainwater that between storm period, the too much treated pollution level that is not able to do in time is higher directly to enter river course.If rain time is longer, rainfall is comparatively large, then, after storing full early-stage rainwater, open the floodway led directly to into river culvert mouth, later stage rainwater less for pollution level is directly entered river course.Water in ecological pond can discharge into river course again or carry out farmland and recharge behind the some skies of process.
(2) this flood storage ecological pond has attractive in appearance, that floor space is little, processing efficiency is high feature, adopt deflected current wall segmentation pool body thus add hydraulic detention time, three subregions can increase nitrogen, phosphorus processing efficiency, improve ecological pond stability and capacity of resisting impact load, biological floating bed and ecological mattress array mode is adopted to improve plant total amount, further raising Pollutant Treatment ability, by the plant in reasonable disposition ecological pond, animal, increase ecological pond attractive in appearance and recreational, set up the complex ecological pool system of biological, that chemistry is integrated aquatic animals and plants.
Finally, at flood storage ecological pond, the river surface region and the whole river surface region that enter river mouth arrange that aeration is biological floating bed.The basis of Traditional Ecological floating bed adds solar panels, for the aerating apparatus of floating bed provides power, has attempted the design of visible light catalytic oxidation in addition, remove Persistent organic pollutants (see Fig. 5).
Biological floating bed have following characteristics:
(1) flexible arrangement, can enter river surface region, river mouth and river surface region, whole Haihe River flexible arrangement as required, estuary region has agricultural non-point pollution thing to import, and organic concentration is higher, is conducive to floating bed plant and microbial growth.
(2) solar panels provide the aerating apparatus of power to add oxygen in water.
(3) visible light catalytic oxidation technology can remove hardly degraded organic substance.
Comprehensive section of Ore-controlling Role of the present utility model, starts with from " point-line-face " various piece, devises different cutting targetedly and controls facility, accomplished to cut control from source; In addition, for the space output characteristic of agricultural non-point pollution, for little watershed, arrange to cut the facilities such as dirty three-dimensional plant grid nearby, for large watershed, arrange and fall the dirty facility such as ecological canal, ecological pond based on ecology; Finally, also for the time output characteristic in source, face, farmland, be provided with flood storage ecological pond, both alleviated the pressure that flood control is waterlogging-resistant, processed again the early-stage rainwater that pollution load is larger.This comprehensively cuts Ore-controlling Role can reach 75 ~ 80% to the clearance of SS, goes the clearance of TN to reach 30 ~ 45%, can reach 35 ~ 40% to the clearance of TP.

Claims (4)

1. a typical agricultural non-point pollution thing " point-line-face " comprehensively cuts Ore-controlling Role, comprise farmland, fish pond, irrigation canals and ditches and river course, it is characterized in that, an irrigation canals and ditches (2) is provided with between described farmland and farmland, between fish pond and fish pond or between farmland and fish pond, rainfall runoff enters an irrigation canals and ditches (2) by the irrigation canals and ditches mouth in farmland and fish pond, then is pooled to tap drain canal (1) respectively by an irrigation canals and ditches (2); Flood storage ecological pond (3) is provided with between the end and river course (4) of tap drain canal (1), river course (4) place that enters of flood storage ecological pond (3) is provided with into river culvert (5), and the ingress entering river culvert (5) is provided with clough;
Enter an irrigation canals and ditches mouth in farmland, irrigation canals and ditches mouth become owner of by an irrigation canals and ditches, tap drain canal enters flood storage ecological pond mouth and is respectively arranged with three-dimensional plant grid (6); And three-dimensional plant grid (6) is arranged at interval in irrigation canals and ditches and tap drain canal, entering staggered arrangement three-dimensional plant grid (6) in the river surface region outside river culvert (5);
Described three-dimensional plant grid (6) is the ship type three-dimensional arrangement of a hollow trapezoid shape, its top is provided with rectangle upper side frame, its underpart is provided with rectangular base frame, and be connected by perpendicular doorjamb between upper side frame and boundary frame area, the long limit of upper side frame is greater than the long limit of correspondence of boundary frame area; The inside of three-dimensional plant grid is provided with enough soft wickers;
Described tap drain canal (1) and an irrigation canals and ditches (2) are all ecological canal, the cross section of this ecological canal is inverted trapezoidal, canal wall is that middle part right hexagonal steel-concrete brick with holes is built and formed, laid by rubble or cobble at the bottom of canal, mold is filled in Qu Bi and canal bottom, and mold plants emergent;
Described flood storage ecological pond (3) is aerobic-double oxygen the ecology pond systems, and surrounding bank slope and the bottom of this aerobic-oxygen the ecology pond systems of holding concurrently are provided with impermeable building block, and the central authorities of impermeable building block are provided with groove and planting plants; Ecological pond is divided into aerobic zone (7), floating bed district (8) and mattress district (9) by two deflected current walls by this system, floating bed district (8) and mattress district (9) composition aerobic area, three regions are staged, have different water depth; The water surface in floating bed district is provided with aeration biological floating bed (11), plants emergent above it; Ecological mattress (12) is set in the water in mattress district, above it, plants planting submerged plant; Be provided with regulating sluice and three-dimensional plant grid (6) in the ingress of flood storage ecological pond (3), the exit of flood storage ecological pond (3) is also provided with regulating sluice; Before the regulating sluice of the ingress of flood storage ecological pond (3) and enter between river culvert (5) to be arranged in parallel floodway (10), so as when to exceed flood storage ecological pond capacity of flood storage timely carrying-off flood peak; The ingress of this floodway (10) is also provided with regulating sluice and three-dimensional plant grid (6);
Flood storage ecological pond, the river surface region entering river culvert and whole river surface region are provided with solar energy aeration biological floating bed (11); Solar panels are provided with, for the aerating apparatus of floating bed provides power on solar energy aeration is biological floating bed; Also be provided with photochemical catalytic oxidation plate to remove Persistent organic pollutants.
2. the typical agricultural non-point pollution thing of one according to claim 1 " point-line-face " comprehensively cuts Ore-controlling Role, it is characterized in that, the emergent of described ecological canal is the emergent of mater convolvulus, Chinese celery, wild rice stem class.
3. the typical agricultural non-point pollution thing of one according to claim 1 " point-line-face " comprehensively cuts Ore-controlling Role, it is characterized in that, the shallow water fishery products of described ecological canal placement part spiral shell, crucian, loach class.
4. the typical agricultural non-point pollution thing of one according to claim 1 " point-line-face " comprehensively cuts Ore-controlling Role, it is characterized in that, aerobic-double oxygen the ecology pond systems of described flood storage ecological pond (3), its aerobic zone (7) average depth is 0.8m, floating bed district (8) average depth is 1.2m, and mattress district (9) average depth is 1.5m.
CN201520277212.4U 2015-04-30 2015-04-30 Accuse system that cuts is synthesized to typical case's farmland non -point source pollution thing " point - line - face " Withdrawn - After Issue CN204737850U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105000748A (en) * 2015-04-30 2015-10-28 天津大学 Typical farmland non-point source pollutant 'point-line-face' comprehensive intercepting and control system
CN108191054A (en) * 2018-01-04 2018-06-22 湖南泰谷生物科技股份有限公司 The Ecological Control system and construction method of rural comprehensive pollution of area source

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105000748A (en) * 2015-04-30 2015-10-28 天津大学 Typical farmland non-point source pollutant 'point-line-face' comprehensive intercepting and control system
CN105000748B (en) * 2015-04-30 2017-03-01 天津大学 Typical agricultural non -point pollution thing " point-line-surface " comprehensively cuts control system
CN108191054A (en) * 2018-01-04 2018-06-22 湖南泰谷生物科技股份有限公司 The Ecological Control system and construction method of rural comprehensive pollution of area source

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