CN207986958U - A kind of ecological purification band in situ of multibank capability - Google Patents

Abstract

This technology provides a kind of ecological purification band in situ of multibank capability, is mainly used in retention and purification runoff of sloping field, and the series connection of reason unit, forms the processing system of an entirety, help to improve treatment effect everywhere in it.It includes grass planting ecology ditch, cobble energy dissipating buffer strip, catch basin, Initial Runoff purification wetland, stabilization pond；The grass planting ecology ditch, catch basin, Initial Runoff purify wetland, are in series before and after stabilization pond；Interior kind of the grass planting ecology ditch is implanted with herbaceous plant；The cobble energy dissipating buffer strip is built by cobble block, and a buffer strip is arranged every 3~5m in grass planting ecology ditch；Initial Runoff purification wetland includes boulder bed, water seepage hole is provided with from the tube wall passed through in boulder bed perforated pipe, positioned at the packing layer of boulder bed lower part, positioned at the dirt bed of boulder bed top and packing layer lower part, be planted in the water plant of boulder bed top dirt bed；Perforated pipe rear and front end is communicated with catch basin, stabilization pond respectively.

Description

A kind of ecological purification band in situ of multibank capability

Technical field

This technology is related to ecological, environmental protective field, and specially a kind of silt applied to runoff of sloping field intercepts and energy dissipating buffering The ecological purification band in situ of multibank capability.

Background technology

In recent years, universal and getting worse developing state is presented in water bodies of rivers and lakes eutrophication in China's.Cause water body The reason of eutrophication, is broadly divided into point-source pollution and non-point pollution, and wherein point-source pollution accounts for the one third of gross contamination amount, Non-point pollution accounts for 2/3rds.And Agricultural Activities are to the contribution rate 75% of non-point pollution.Therefore, how effectively to control The problem of nitrogen phosphorus generated in Agricultural Activities processed becomes urgent need to resolve in non-point source pollution control to the pollution of river and lake.

Irrigation canals and ditches are component parts important in Agro-ecological System, have the effects that water transfer, water storage, irrigation, flood control.Except this Except, irrigation canals and ditches still have the ecological engineering system in river and wet land system feature.In recent years, domestic and foreign scholars using irrigation canals and ditches this The various ecological canal systems of one feature development utilize the control non-point pollutions such as plant absorption, microbial degradation, bed mud retention In nitrogen and phosphorus.

Currently, the research of domestic and foreign scholars is concentrated mainly on absorbs the compound place being integrated in one by organic matter degradation, nitrogen phosphorus Reason measure, but be difficult to control comprising a variety of processing means, actual effect in single module.

Invention content

In view of the above problems, this application provides a kind of ecological purification band in situ of multibank capability, it is mainly used in retention With purification runoff of sloping field, each processing unit series connection forms the processing system of an entirety, helps to improve treatment effect.

To achieve the above object, the application provides the following technical solutions：

A kind of ecological purification band in situ of multibank capability described in this technology, including grass planting ecology ditch 1, cobble energy dissipating buffering Band 2, catch basin 3, Initial Runoff purify wetland 4, stabilization pond 12；The grass planting ecology ditch 1, catch basin 3, Initial Runoff purification are wet Ground 4 is in series before and after stabilization pond 12；Interior kind of the grass planting ecology ditch 1 is implanted with herbaceous plant；The cobble energy dissipating buffer strip 2 by Cobble block is built into, and a buffer strip is arranged every 3~5m in grass planting ecology ditch 1；The Initial Runoff purification wetland includes cobble Layer 6, the perforated pipe 5 for being provided with from the tube wall passed through in boulder bed 6 water seepage hole, positioned at 6 lower part of boulder bed packing layer 7, be located at The dirt bed 8 of 7 lower part of 6 top of boulder bed and packing layer, the water plant 10 for being planted in 6 top dirt bed 8 of boulder bed；Perforated pipe 5 rear and front ends are communicated with catch basin 3, stabilization pond 12 respectively.

As being further improved for the ecological purification band in situ to a kind of above-mentioned multibank capability, the grass planting ecology ditch 1 In be equipped with turf, turf is laid on Qu Bi and the canal bottom of irrigation canals and ditches.The turf of canal wall chooses Dwarf cultivar, such as short raw Bermuda Grass；The turf of canal wall chooses well developed root system, the higher kind of cauline leaf, such as Itanlian rye.

As being further improved for the ecological purification band in situ to a kind of above-mentioned multibank capability, runoff purification in the early stage is wet There is 4 rear upper of ground water storage flume 13,5 rear end of perforated pipe to be communicated with water storage flume 13, and installation position is higher than on 13 side wall of water storage flume The effluent weir 9 of 5 rear end of perforated pipe, when water level is higher than effluent weir 9 in water storage flume 13, the water in water storage flume 13 crosses effluent weir 9 It flows into stabilization pond 12.

As being further improved for the ecological purification band in situ to a kind of above-mentioned multibank capability, the cobble energy dissipating buffering Band 2 is piled up by cobble, and cobble heap bottom is wider, and top is relatively narrow, and height is 40~50cm.

As being further improved for the ecological purification band in situ to a kind of above-mentioned multibank capability, 5 caliber of perforated pipe is 10 ~15cm, the water seepage hole aperture on perforated pipe 5 are 1~2cm, and 5 rear end of perforated pipe is semi-closed state, and closed height is caliber Half.

As being further improved for the ecological purification band in situ to a kind of above-mentioned multibank capability, the boulder bed 6 is being worn The laying depth of 5 top and the bottom of hole pipe is 10~15cm, and the grain size of cobble is 3~5cm.

As being further improved for the ecological purification band in situ to a kind of above-mentioned multibank capability, 7 thickness of packing layer is 20 ~30cm；Grain size about 1~2cm of the middle filler of packing layer 7.Filler is any one in the materials such as stone, cinder, bamboo charcoal or more Kind.Stone, cinder, bamboo charcoal etc. can be arbitrary proportions in filler.

As being further improved for the ecological purification band in situ to a kind of above-mentioned multibank capability, the mud on 6 top of boulder bed 8 thickness of soil layer is 20~30cm.

Compared with prior art, the advantageous effect of this technology is：

The grass planting ecology ditch 1 is applied to the interception of slope runoff, and canal wall plants short sward skin, and root system hair is planted at canal bottom It reaches, the higher kind of stem.

4 lower part of Initial Runoff purification wetland is connected with stabilization pond 12 so that can have in dry spell wetland water plant Enough water sources, to ensure Initial Runoff purification, wetland 4 is lasting plays a role.Be provided on the tube wall of perforated pipe 5 diameter 1~ The water seepage hole of 2cm, and end be semi-closed state, can fully degraded Initial Runoff, when flow reaches it is very big when, at this time surpass The amount of Initial Runoff is crossed, runoff pollution degree declines, and a part of runoff can be overflowed from 5 end of perforated pipe is directly entered stabilization The pool 12 achievees the purpose that fully to drain.

The runoff for carrying a large amount of silts retains silt through grass planting ecology ditch 1 first, then flows through the drop of cobble energy dissipating buffer strip 2 Irrigation canals and ditches are washed away in low kinetic energy, reduction.Runoff enters the catch basin 3 of irrigation canals and ditches end later, the perforated pipe 5 through 3 bottom of catch basin It flows into Initial Runoff and purifies wetland 4, in the wetland 4 of runoff purification in the early stage, a part of nitrogen of plant absorption degradation and phosphorus, a part of quilt Initial Runoff purifies the filling adsorption in wetland 4.The runoff water that menarche runoff purification wetland 4 is handled is discharged into stabilization pond 12.Disparate modules are function-specific, significant effect, processing of the slope runoff through this train silt therein, organic matter, nitrogen phosphorus It is significantly reduced.Project cost and maintenance cost are low, convenient operation and management, convenient for being widely applied.

Description of the drawings

Fig. 1 is the application entirety plan view from above；

Fig. 2 is the schematic diagrames such as the application grass planting ecology ditch, cobble energy dissipating buffer strip and catch basin；

Fig. 3 is grass planting ecology ditch cross-sectional view；

Fig. 4 is that Initial Runoff purifies the Longitudinal cross section schematics such as wetland；

Fig. 5 is 5 end structure schematic diagram of perforated pipe.

Specific implementation mode

This technology is described further below in conjunction with attached drawing.

A kind of ecological purification band in situ of multibank capability shown in Figure 1, grass planting ecology ditch 1, catch basin 3, initial stage diameter Stream purifies wetland 4, is in series before and after stabilization pond 12.

Turf is laid on Qu Bi and the canal bottom of irrigation canals and ditches in the grass planting ecology ditch 1, on the one hand can reduce runoff to irrigation canals and ditches It washes away, on the other hand can retain the suspended material in runoff.The turf spread in the grass planting ecology ditch 1 is short raw Bermuda Grass, turf is laid on Qu Bi and the canal bottom of irrigation canals and ditches, while planting Itanlian rye at canal bottom.

One buffer strip is set every 3~5m in grass planting ecology ditch 1；The cobble energy dissipating buffer strip 2 is by grain size 10-20cm Cobble pile up, cobble heap bottom is wider, and top is relatively narrow, height be 40~50cm.

Catch basin 3 is arranged in the end of irrigation canals and ditches, and catch basin 3 is cuboid.

The Initial Runoff purification wetland 4 includes boulder bed 6, is provided with water seepage hole from the tube wall passed through in boulder bed 6 Perforated pipe 5, the dirt bed 8 positioned at 7 lower part of 6 top of boulder bed and packing layer, is planted in the packing layer 7 positioned at 6 lower part of boulder bed The water plant 10 of 6 top dirt bed 8 of boulder bed.

Laying depth of the boulder bed 6 in 5 top and the bottom of perforated pipe is 10~15cm, and the grain size of cobble is 3~5cm. 7 thickness of packing layer is 20~30cm, and grain size about 1~2cm, packing layer uses mixed fillers, is the mixture of clinker and activated carbon, Mixed proportion is 2 by volume:1, to improve adsorption effect.8 thickness of dirt bed on 6 top of boulder bed is 20~30cm.

5 caliber of perforated pipe is 10~15cm, and the water seepage hole aperture on perforated pipe 5 is 1~2cm, and 5 rear end of perforated pipe is by semicircle Shape mounting 11 blocks, and at semi-closed state, closed height is the half of caliber.

In the early stage runoff purification 4 rear upper of wetland have water storage flume 13,5 rear and front end of perforated pipe respectively with catch basin 3, Water storage flume 13 communicates, and installation position is higher than the effluent weir 9 of 5 rear end of perforated pipe on 13 side wall of water storage flume, when water level in water storage flume 13 When higher than effluent weir 9, the water in water storage flume 13 is crossed effluent weir 9 and is flowed into stabilization pond 12.

When runoff flows into grass planting ecology ditch 1, a part of silt can be retained by the turf of canal wall, when runoff flows to canal bottom When, stem higher grass in canal bottom then plays main interception function, and on the one hand luxuriant grass reduces through flow velocity so that in runoff Silt can settle, on the other hand, the intensive cauline leaf of grass plays the role of filtering and intercepts so that most mud in runoff Sand can settle down.Subsequent runoff is cobble check dam followed by cobble energy dissipating buffer strip 2, passes through cobble check dam every time The kinetic energy of runoff can be all lowered, and after several check dams, the kinetic energy of runoff is reduced to very low level, hardly Souring can be played to irrigation canals and ditches.

Runoff after energy dissipating flows into the catch basin 3 of irrigation canals and ditches end, is arranged in parallel 4~6 and perforates in the bottom of catch basin 3 Pipe 5, perforated pipe 5 are embedded at 30~40cm of underground, and when runoff is smaller, the water level in perforated pipe 5 is relatively low, and runoff is mainly from perforation It is oozed out in water seepage hole on 5 tube wall of pipe, part infiltration downwards achievees the purpose that purify Initial Runoff.From water seepage hole out to The runoff of lower infiltration enters packing layer by boulder bed, and the clinker and activated carbon in packing layer possess very high porosity and Bi Biao Area can fully absorb nitrogen and phosphorus in runoff.After the absorption of packing layer, runoff water oozes under continuing, into soil Layer, the level of nutrient is very low in runoff water at this moment.The runoff oozed out from the water seepage hole of perforated pipe 5 also has one Point permeate up, the dirt bed on boulder bed top entered through boulder bed, the eucolloid in a part of nutrient and soil and Organic matter combines, and the water plant root system that another part is planted absorbs, and is used for the growth and development of plant.Meanwhile water plant The particular surroundings of the anaerobic- anoxic- oxic formed around root system makes the nitrogen in water generate nitrogen through denitrification and enter air. The triangular-notch weir that processed runoff purifies 4 end of wetland by Initial Runoff is discharged, and finally enters stabilization pond 12.

There is 9 water storage flume 13 of triangle effluent weir, runoff water to pass through initial stage for the end setting of the wetland 4 of runoff purification in the early stage Stabilization pond 12 is flowed into again into water storage flume 13 after the purification of runoff purification wetland 4.Initial Runoff purifies the bottom of wetland less than steady Determine 12 water level of the pool, ensure also there is moisture in arid season wetland so that water plant can normal growth, catharsis is able to It is normal to play.

This application discloses a kind of ecological purification band in situ of multibank capability, be mainly used for the interception of slope runoff with it is net Change.This technology increases cobble energy dissipating buffer strip 2 in grass planting ecology ditch 1, reduces runoff kinetic energy, reduces runoff to channel It washes away；Provided with grass planting ecology ditch 1, retention in situ is carried out to silt, reduces the loss of silt；Each processing unit is connected, is carried High disposal effect.

Claims (8)

1. a kind of ecological purification band in situ of multibank capability, including grass planting ecology ditch（1）, cobble energy dissipating buffer strip（2）, catch basin （3）, Initial Runoff purification wetland（4）, stabilization pond（12）；It is characterized in that：The grass planting ecology ditch（1）, catch basin（3）, just Phase runoff purifies wetland（4）, stabilization pond（12）It is front and back to be in series；The grass planting ecology ditch（1）Interior kind is implanted with herbaceous plant；It is described Cobble energy dissipating buffer strip（2）It is built by cobble block, in grass planting ecology ditch（1）It is interior that every 3~5m, one buffer strip is set；The initial stage It includes boulder bed that runoff, which purifies wetland,（6）, from boulder bed（6）In the perforated pipe of water seepage hole is provided on the tube wall that passes through（5）, be located at Boulder bed（6）The packing layer of lower part（7）, be located at boulder bed（6）Top and packing layer（7）The dirt bed of lower part（8）, be planted in ovum Rock layers（6）Top dirt bed（8）Water plant（10）；Perforated pipe（5）Rear and front end respectively with catch basin（3）, stabilization pond （12）It communicates.

2. a kind of ecological purification band in situ of multibank capability according to claim 1, it is characterised in that：Runoff is net in the early stage Dampness elimination（4）Rear upper has water storage flume（13）, perforated pipe（5）Rear end and water storage flume（13）It communicates, water storage flume（13）Side wall Upper installation position is higher than perforated pipe（5）The effluent weir of rear end（9）, work as water storage flume（13）Interior water level is higher than effluent weir（9）When, water Slot（13）Interior water crosses effluent weir（9）Flow into stabilization pond（12）It is interior.

3. a kind of ecological purification band in situ of multibank capability according to claim 1, it is characterised in that：The grass planting ecology Ditch（1）In be equipped with turf, turf is laid on Qu Bi and the canal bottom of irrigation canals and ditches；The turf of canal wall chooses Dwarf cultivar, the grass at canal bottom Skin chooses well developed root system, the higher kind of cauline leaf.

4. a kind of ecological purification band in situ of multibank capability according to claim 1, it is characterised in that：The cobble energy dissipating Buffer strip（2）It is piled up by cobble, cobble heap bottom is wider, and top is relatively narrow, and height is 40~50cm.

5. a kind of ecological purification band in situ of multibank capability according to claim 1, it is characterised in that：Perforated pipe（5）Pipe Diameter is 10~15cm, perforated pipe（5）On water seepage hole aperture be 1~2cm, perforated pipe（5）Rear end is semi-closed state, and closing is high Degree is the half of caliber.

6. a kind of ecological purification band in situ of multibank capability according to claim 1, it is characterised in that：The boulder bed （6）In perforated pipe（5）The laying depth of top and the bottom is 10~15cm, and the grain size of cobble is 3~5cm.

7. a kind of ecological purification band in situ of multibank capability according to claim 1, it is characterised in that：Packing layer（7）It is thick Degree is 20~30cm；Packing layer（7）The grain size of middle filler about 1~2cm.

8. a kind of ecological purification band in situ of multibank capability according to claim 1, it is characterised in that：Boulder bed（6）On The dirt bed in portion（8）Thickness is 20~30cm.