CN105668944B - A kind of Riparian Zone subtracts dirty method - Google Patents
A kind of Riparian Zone subtracts dirty method Download PDFInfo
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- CN105668944B CN105668944B CN201610200331.9A CN201610200331A CN105668944B CN 105668944 B CN105668944 B CN 105668944B CN 201610200331 A CN201610200331 A CN 201610200331A CN 105668944 B CN105668944 B CN 105668944B
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- riparian zone
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- diafiltration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Cultivation Of Plants (AREA)
Abstract
A kind of Riparian Zone disclosed by the invention subtracts dirty method, it is that a kind of Riparian Zone of the perennial zone of vegetation in conjunction with diafiltration reinforcing tape subtracts dirty method, specifically: configuring section dirty buffer strip of diafiltration reinforcing tape and herbaceos perennial in Riparian Zone, described section of dirty buffer strip reduces by the herbal growth of life in 1 year by constituting from nearly riverbank to hygromorphism herbaceous plant band, middle raw type herbaceous plant band and the xeromorph herbaceous plant band remotely set gradually with a distance from riverbank by way of harvesting；The setting diafiltration reinforcing tape between hygromorphism herbaceous plant band and middle raw type vegetational zone.The invention has the advantages that dirt can effectively be cut, enhance the infiltration capacity of underground water；Herbaceos perennial has flourishing root system, and reasonable disposition helps to improve the retaining power and water and soil holding capabilities of Riparian Zone；By the hygromorphism of perennial herb, middle raw type and xeromorphic segmentation planting composition, it can be regulated and controled by vegetation, enhance the retaining power of riparian buffer strips.
Description
Technical field
The invention belongs to pollution of area source control fields, and in particular to improve ground using Riparian Zone plant and diafiltration reinforcing tape
The method of table runoff retaining power.
Background technique
The ability that Riparian vegetation cuts dirty rainwash for Riparian Zone is most important, and draft class plant is close due to its growth
Collection is high, and individual plants comparatively smaller the features such as being covered on earth's surface, so it can remove earth's surface in slow runoff
It Runoff contaminants and degrades, adsorb pollutant etc. and play good effect.The root system and soil of Riparian vegetation can be with
It is combined with each other, and then very powerful biological flocculation and precipitation power can be formed, this is conducive to the space structure of reinforced soil, and perennial grass
This root system of the sward of this plant than 1 year is more flourishing, and the retaining power of vegetational zone can be improved.
Efficiency for Soil Aquifer Treatment due to its economic and technical feasibility advantage and attract attention.Efficiency for Soil Aquifer Treatment is a kind of
The sewerage ecological the treatment of artificial-strengthening, it makes full use of the soil animal inhabited in the soil below earth's surface, soil
Wuli-Shili-Renli system approach possessed by earth microorganism, root system of plant and soil belongs to sewage purification at small-sized polluted water land
Reason system.The filter layer of filtration system is mostly mixed using natural river course sand, gravel or sawdust, the soil such as abrasive grit after screening
Close object and some other Artificial filtering materials.The large particles such as cinder are mixed into the packing layer of Efficiency for Soil Aquifer Treatment to be significantly improved
The infiltration rate of soil.
Summary of the invention
The technical problems to be solved by the present invention are: by the setting of diafiltration reinforcing tape and the configuration of Riparian Zone plant,
It improves riparian buffer strips and dirty performance is cut to rainwash, to reduce the pollutant for entering surface water body；It is strong by diafiltration simultaneously
The setting for changing band improves the lower water percolating capacity of rainwash, promotes the supplement to groundwater run off.
The present invention solves its technical problem, and the following technical solution is employed:
Riparian Zone provided by the invention subtracts dirty method, is a kind of Riparian Zone of the perennial zone of vegetation in conjunction with diafiltration reinforcing tape
Subtract dirty method, specifically: configuring section dirty buffer strip of diafiltration reinforcing tape and herbaceos perennial, described section of dirt in Riparian Zone
Buffer strip be by from nearly riverbank to remotely set gradually with a distance from riverbank hygromorphism herbaceous plant band, middle raw type herbaceous plant
Band and xeromorph herbaceous plant band are constituted, while reducing by the herbal growth of life in 1 year by way of harvesting；In hygromorphism grass
Setting diafiltration reinforcing tape between this vegetational zone and middle raw type vegetational zone.
The hygromorphism herbaceous plant band, vegetation width are 8~15m, plant cogongrass, reed.
The middle life and xeromorph herbaceous plant band, planting patterns use miscegenation, vegetation width be respectively 5~10m,
10~20m, in which: in middle raw type herbaceous plant band plantation herbaceos perennial, including drape over one's shoulders alkali grass, different fringe sedge；It is raw in drought
Type herbaceous plant band, plantation yellow bluestem, the hidden son grass of China, rye grass.
The present invention is to carry out cutting off for plant in 7-8 month, to reduce by 1 year herbal grain weight of life.
The diafiltration reinforcing tape, from top to bottom successively by native soil layer, soil and coarse sand mixed layer, packing layer, soil
It is constituted with dry crushed aggregate of plant mixed layer, bottom supporting layer.
The diafiltration reinforcing tape, width are 0.8~1.5m.
The native soil layer, with a thickness of 15~20cm；Soil and thick river sand mixed layer are with a thickness of 5~10cm.
The packing layer uses partial size for the zeolite of 3~5mm with a thickness of 15~20cm.
The soil and dry crushed aggregate of plant mixed layer are 5~10cm thick, wherein dry crushed aggregate of plant is gathered in using Riparian Zone
Grass, be crushed to 1~20mm after drying, the dry weight ratio of soil and dry crushed aggregate of plant is (5~7): 1.It is mixed into dry crushed aggregate of plant not
The infiltration rate of soil only can be improved, adsorb the polluter in runoff, and dry crushed aggregate of plant is also used as after rotting
The carbon source that microorganism growth needs, the electronics provided may advantageously facilitate the progress of microorganism denitrification.
The bottom supporting layer uses partial size for the gravel of 30~50mm with a thickness of 5~10cm.
The present invention has the advantages that following main compared with prior art:
1. being percolated reinforcing tape can carry out effectively cutting dirt, not only reduce defeated before rainwash enters surface water body
Enter the amount of pollutant into surface water body, while the lower infiltration ratio of rainwash water can also be improved, to help to supplement
Groundwater run off.
2. being percolated reinforcing tape filler uses zeolite, there is preferable nitrogen phosphorus to cut dirty effect, it is from a wealth of sources, it can effectively reduce and fill out
Material transport and use cost.
3. riparian buffer strips plant based on herbaceos perennial, because herbaceos perennial has flourishing root
System, reasonable disposition help to improve the retaining power and water and soil holding capabilities of Riparian Zone.
Detailed description of the invention
Fig. 1 is Riparian Zone plan view.
Fig. 2 is the diagrammatic cross-section for being percolated reinforcing tape, and data unit is cm in Fig. 2.
Specific embodiment
Method provided by the invention be it is a kind of using the zone of vegetation and diafiltration reinforcing tape synergy to rainwash carry out
Subtract dirty method, the implementation steps of this method are as follows:
1. for the competitive growth of 1 year sward sheet of reduction, 2 years before planting Riparian Zone herbaceos perennial band, often
Carry out year 7-8 month that life in 1 year is herbal to cut off, it is possible to reduce 1 year herbal grain weight of life, year by year 1 year sward of reduction
The competitive advantage of this plant.After planting herbaceos perennial Riparian Zone, it is still desirable to maintenance management, annual 7-8 month
Carry out the removing of annual herb plant.The dominance of herbaceos perennial can increase year by year, until stable superiority is grown.
2. herbaceos perennial configures, nearly riverbank is hygromorphism herbaceous plant, can be cogongrass, reed etc., vegetation is wide
Degree is 8~15m；Perennial middle raw type and xeromorph herbaceous plant, middle raw type plant remotely, can be being configured with a distance from riverbank
Alkali grass, different fringe sedge are such as draped over one's shoulders, plant bandwidth is 5~10m, draft xeromorph plant such as yellow bluestem, the hidden son grass of China and rye
Grass, plant bandwidth are 10~20m.Since some Riparian Zones are influenced by the artificial road and other buildings of building, Riparian Zone
Overall width has greatly reduced, and cannot reach width designed by the patent, when specific implementation can according to a certain percentage into
The configuration of row vegetational zone, the width ratio of hygromorphism, middle raw type and the configuration of xeromorph vegetational zone is substantially are as follows: 1.5:1:2.
3. being percolated reinforcing tape to be arranged between hygromorphism and middle raw type vegetational zone, if all setting diafiltration is strengthened along Riparian Zone
Band is limited by cost, therefore, the setting of diafiltration reinforcing tape is generally carried out in weight runoff pollution area, can strengthen Riparian Zone
Cut dirty performance.It is percolated the setting of reinforcing tape, first progress engineering excavation, cutting depth is 60 ± 15cm, according to soil property situation
Determine whether need to support in work progress.Then bottom supporting layer is loaded with 30~50mm gravel, with a thickness of 5~10cm.It will
The Riparian Zone herbaceous plant after drying is gathered in, 1~20mm length is processed into the hay grinder of processing roughage, by itself and soil
Earth is with (5~7): 1 dry ratio, fills 5~10cm on supporting layer, which carries out primarily to providing nitrogen in runoff
Carbon source needed for denitrification.The filling of 15~20cm zeolite filler layer is carried out later, and sized zeolite particles are 3~5mm, this layer is pair
The main function layer that nitrogen and phosphorus in runoff are removed.Then, the filling of 5~10cm soil and thick river sand mixed layer is carried out,
The effect of this layer is mainly transition zone, prevents excessive soil particle from blocking zeolite filler layer, while also being polluted to a part
Object carries out quickly diafiltration removal.Finally, completing the filling of the top layer soil with a thickness of 15~20cm.In entire implementation process,
It is when paying attention to carrying out soil excavation, top layer soil is individually placed, guarantee that top layer is still former top layer soil when finally filling, this is helped
In retaining native soil layer function microorganism etc., the plant growth medium effect of native soil layer will not influence.
4. after being percolated reinforcing tape filling, herbaceos perennial is planted on diafiltration reinforcing tape surface layer, to pass through plant
Root system promotes the percolation of diafiltration reinforcing tape.
The present invention is described in further detail with attached drawing combined with specific embodiments below.
Embodiment 1:
Using Beijing Caobai River Riparian Zone soil, tape handling runoff pollution is strengthened in lab scale simulation diafiltration, while comparison sheet seeps
Flow away the difference of depollution object.Diafiltration reinforcing tape imitative experimental appliance is made of organic glass, and the high 310mm of main part is long
1500mm, wide 150mm are ribbon；Its lowest level is provided with the gravel layer that partial size is 5~8mm, and gravel layer top is 7cm thick
Dry weight ratio 1:7 sawdust soil mixed layer, between gravel layer and sawdust soil mixed layer be laid with one layer of geotextiles, to hinder
Particulate matter in the lower infiltration stream of gear enters bottom water outlet；It is filter layer on sawdust soil mixed layer top, is done by 7cm is thick
The thick river sand than 1:1 and filler mix composition again, and filler is zeolite.Simultaneously consider herbal growth, thick river sand with
15cm thickness soil horizon is arranged in the top of zeolite mixture layer.
Primary pollutant concentration in runoff simulation are as follows: total nitrogen 7mg/L, ammonia nitrogen 3mg/L, nitrate nitrogen 4mg/L, total phosphorus 0.8mg/
L.After simulation diafiltration reinforcing tape setting, the removal rate to the total nitrogen of runoff simulation waste water, ammonia nitrogen, nitrate nitrogen and total phosphorus is respectively
40.9%, 60.6%, 37.9% and 60.6%, and the control soil device of unused zeolite is to total nitrogen, ammonia nitrogen, nitrate nitrogen and total phosphorus
Removal rate be respectively 28.2%, 15.9%, 31.2% and 42.3%.As can be seen that there is zeolite preferable nitrogen phosphorus to cut dirty energy
Power, diafiltration reinforcing tape can increase Riparian Zone to the removal capacity of pollutant.
Nitrogen and phosphorus pollutants are removed in diafiltration reinforcing tape a part by rainwash, and a part is removed by seepage flow.Simulation
As a result, it has been found that go to denitrogenate by seepage flow, the ability of the pollutants such as phosphorus is significantly higher than rainwash, and seepage flow water is bigger, river
Total removal rate of the bank with nitrogen and phosphorus pollutants and unit area pollutant removal load are higher.Simulation diafiltration reinforcing tape increases runoff
The lower infiltration ratio of water, compareing the ratio between surface low and seepage discharge of soil device is 1.73, and simulates the surface low and infiltration of diafiltration reinforcing tape
The ratio between flow is 1.02, is percolated reduction of the reinforcing tape to Riparian Zone runoff water meter seepage flow ratio, peomotes Riparian Zone water flow
Lower infiltration, not only recharge groundwater to a certain extent, also enhances Riparian Zone to the removal effect of nitrogen and phosphorus pollutants.
Embodiment 2:
Using the simulation small testing device of embodiment 1, be all filled using Riparian Zone soil, respectively plant rye grass and
Annual Chloris virgata, paradise grass carry out simulation Riparian zone and cut dirty experiment.4 small testing devices are connected, and 6 meters of width are simulated
Riparian Zone.Primary pollutant concentration in runoff simulation are as follows: total nitrogen 7mg/L, ammonia nitrogen 3mg/L, nitrate nitrogen 4mg/L, total phosphorus
0.8mg/L.The result shows that rye grass is preferable to the removal effect of total nitrogen, ammonia nitrogen, nitrate nitrogen and total phosphorus.Rye grass pollutes 4 kinds
The removal rate of object is respectively 30.1%, 21.9%, 33.6% and 40.5%, treatment effect be higher than Chloris virgata (26.7%,
31.2%) and paradise is careless (24.6%, 19.2%, 22.1% and 29.4%) 18.0%, 23.5% and.This illustrates perennial herb
Planting is better than annual herbaceous plant in Riparian Zone, to the processing capacity of nitrogen and phosphorus pollutants.
Claims (8)
1. a kind of Riparian Zone subtracts dirty method, it is characterized in that a kind of Riparian Zone of perennial zone of vegetation in conjunction with diafiltration reinforcing tape subtracts dirt
Method, specifically: configuring section dirty buffer strip of diafiltration reinforcing tape and herbaceos perennial, described section of dirty buffering in Riparian Zone
Band be by from nearly riverbank to remotely set gradually with a distance from riverbank hygromorphism herbaceous plant band, middle raw type herbaceous plant band and
Xeromorph herbaceous plant band is constituted, while reducing by the herbal growth of life in 1 year by way of harvesting；It is planted in hygromorphism draft
Setting diafiltration reinforcing tape between object band and middle raw type vegetational zone；
The diafiltration reinforcing tape, from top to bottom successively by native soil layer, soil and coarse sand mixed layer, packing layer, soil and dry
Crushed aggregate of plant mixed layer, bottom supporting layer are constituted；
The soil and dry crushed aggregate of plant mixed layer are 5~10cm thick, wherein dry crushed aggregate of plant uses the grass of Riparian Zone harvesting,
It is crushed to 1~20mm after drying, the dry weight ratio of soil and dry crushed aggregate of plant is (5~7): 1.
2. Riparian Zone according to claim 1 subtracts dirty method, it is characterised in that the hygromorphism herbaceous plant band is planted
It is 8~15m by width, plants cogongrass, reed.
3. Riparian Zone according to claim 1 subtracts dirty method, it is characterised in that the middle life and xeromorph herbaceous plant
Band, planting patterns use miscegenation, and vegetation width is respectively 5~10m, 10~20m, in which: in middle raw type herbaceous plant band kind
Perennial plant is planted, including drapes over one's shoulders alkali grass, different fringe sedge；In xeromorph herbaceous plant band, it is careless, black to plant yellow bluestem, the hidden son of China
Wheat straw.
4. Riparian Zone according to claim 1 subtracts dirty method, it is characterized in that cutting off for plant is carried out in 7-8 month, to subtract
Few 1 year herbal grain weight of life.
5. Riparian Zone according to claim 1 subtracts dirty method, it is characterised in that the diafiltration reinforcing tape, width are
0.8~1.5m.
6. Riparian Zone according to claim 1 subtracts dirty method, it is characterised in that the native soil layer, with a thickness of 15
~20cm；Soil and thick river sand mixed layer are with a thickness of 5~10cm.
7. Riparian Zone according to claim 1 subtracts dirty method, it is characterised in that the packing layer is with a thickness of 15~20
Cm uses partial size for the zeolite of 3~5mm.
8. Riparian Zone according to claim 1 subtracts dirty method, it is characterised in that the bottom supporting layer with a thickness of 5~
10cm uses partial size for the gravel of 30~50mm.
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| CN108862599A (en) * | 2018-06-19 | 2018-11-23 | 江苏东珠景观股份有限公司 | A kind of wetland purification dynamic regulation system |
| CN110790453A (en) * | 2019-11-04 | 2020-02-14 | 中国科学院华南植物园 | Water and soil conservation water quality purification method and system for water source |
| CN111579451A (en) * | 2020-04-29 | 2020-08-25 | 南京理工大学 | Method for intercepting urban initial surface runoff by improving soil infiltration capacity |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555071A (en) * | 2009-05-14 | 2009-10-14 | 上海市环境科学研究院 | Method for utilizing buffer strip to control agricultural non-point source pollution of tidal river network area of plain |
| CN101767911A (en) * | 2010-01-21 | 2010-07-07 | 同济大学 | Method and device for strengthening treatment of slope interception |
| CN102349421A (en) * | 2011-07-04 | 2012-02-15 | 中国环境科学研究院 | Technical method for regulating and controlling semi-arid and semi-humid region water coastal zone vegetation moisture functional group distribution |
| CN103043796A (en) * | 2012-02-20 | 2013-04-17 | 广州市新之地环保产业有限公司 | Inland riverbank vegetation buffering and purifying zone |
| CN104370368A (en) * | 2013-08-14 | 2015-02-25 | 蒋华 | Waste water and sewage processing method |
| CN104817182A (en) * | 2015-04-20 | 2015-08-05 | 沈阳大学 | Method for building cold region riparian buffer strip stopping and controlling agricultural non-point source pollution |
-
2016
- 2016-03-31 CN CN201610200331.9A patent/CN105668944B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555071A (en) * | 2009-05-14 | 2009-10-14 | 上海市环境科学研究院 | Method for utilizing buffer strip to control agricultural non-point source pollution of tidal river network area of plain |
| CN101767911A (en) * | 2010-01-21 | 2010-07-07 | 同济大学 | Method and device for strengthening treatment of slope interception |
| CN102349421A (en) * | 2011-07-04 | 2012-02-15 | 中国环境科学研究院 | Technical method for regulating and controlling semi-arid and semi-humid region water coastal zone vegetation moisture functional group distribution |
| CN103043796A (en) * | 2012-02-20 | 2013-04-17 | 广州市新之地环保产业有限公司 | Inland riverbank vegetation buffering and purifying zone |
| CN104370368A (en) * | 2013-08-14 | 2015-02-25 | 蒋华 | Waste water and sewage processing method |
| CN104817182A (en) * | 2015-04-20 | 2015-08-05 | 沈阳大学 | Method for building cold region riparian buffer strip stopping and controlling agricultural non-point source pollution |
Non-Patent Citations (1)
| Title |
|---|
| 潮白河上游河岸植被缓冲带对氮、磷去除效果研究;张广分;《中国农学通报》;20131231;第29卷(第8期);全文 * |
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