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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- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000002689 soil Substances 0.000 claims abstract description 46
- 230000012010 growth Effects 0.000 claims abstract description 8
- 238000005325 percolation Methods 0.000 claims abstract description 6
- 241000196324 Embryophyta Species 0.000 claims description 43
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 10
- 229910021536 Zeolite Inorganic materials 0.000 claims description 9
- 238000001764 infiltration Methods 0.000 claims description 9
- 230000008595 infiltration Effects 0.000 claims description 9
- 239000010457 zeolite Substances 0.000 claims description 9
- 239000004576 sand Substances 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 7
- 244000025254 Cannabis sativa Species 0.000 claims description 6
- 241000209082 Lolium Species 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 4
- 240000007171 Imperata cylindrica Species 0.000 claims description 3
- 235000014676 Phragmites communis Nutrition 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 2
- 241000722731 Carex Species 0.000 claims 1
- 241001074093 Echinopsis Species 0.000 claims 1
- 244000153234 Hibiscus abelmoschus Species 0.000 claims 1
- 241000511730 Leymus chinensis Species 0.000 claims 1
- 244000273256 Phragmites communis Species 0.000 claims 1
- 241000894007 species Species 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 239000003673 groundwater Substances 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 35
- 230000003014 reinforcing effect Effects 0.000 description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 22
- 238000011026 diafiltration Methods 0.000 description 21
- 239000003344 environmental pollutant Substances 0.000 description 12
- 231100000719 pollutant Toxicity 0.000 description 12
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 11
- 229910052698 phosphorus Inorganic materials 0.000 description 11
- 239000011574 phosphorus Substances 0.000 description 11
- 238000004088 simulation Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 5
- 238000011049 filling Methods 0.000 description 5
- 244000005700 microbiome Species 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000002352 surface water Substances 0.000 description 3
- 241001290610 Abildgaardia Species 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241001273783 Carex scoparia Species 0.000 description 2
- 241001273256 Chloris virgata Species 0.000 description 2
- 241000736229 Puccinellia Species 0.000 description 2
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
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- 238000001035 drying Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
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- 238000012360 testing method Methods 0.000 description 2
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- 239000003818 cinder Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 235000013325 dietary fiber Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
本发明公开的一种河岸带减污方法，是一种多年生植被带与渗滤强化带结合的河岸带减污方法，具体是：在河岸带配置渗滤强化带以及多年生草本植物的截污缓冲带，所述截污缓冲带由从近河岸到离河岸距离较远处依次设置的湿生型草本植物带、中生型草本植物带和旱生型草本植物带构成，同时通过收割的方式减少1年生草本植物的生长；在湿生型草本植物带与中生型植物带之间设置渗滤强化带。本发明的优点是：可以有效截污，增强地下水的渗滤量；多年生草本植物具有发达的根系，其合理配置有助于提高河岸带的截污能力和水土固持能力；通过多年生草本的湿生型、中生型与旱生型的分段种植配置，可以通过植被调控，增强河岸缓冲带的截污能力。
The invention discloses a riparian zone pollution reduction method, which is a riparian zone pollution reduction method that combines a perennial vegetation zone and a percolation enhanced zone, specifically: configuring a percolation enhanced zone and a perennial herbaceous plant pollution interception buffer in the riparian zone The pollution interception buffer zone is composed of a hygrophyte herb zone, a mesophyte herbaceous plant zone and a xerophytic herbaceous plant zone, which are arranged sequentially from near the river bank to a distance from the river bank. Growth of 1-year herbaceous plants; a percolation enhancement zone is set between the hygrophyte herb zone and the mesophyte zone. The advantages of the present invention are: it can effectively intercept sewage and enhance the percolation of groundwater; the perennial herb has a well-developed root system, and its reasonable configuration helps to improve the sewage interception ability and water and soil holding capacity of the riparian zone; through the wet growth of the perennial herb The segmented planting configuration of the mesophyte, mesophyte, and xerophyte can enhance the sewage interception capacity of the riparian buffer zone through vegetation regulation.
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)
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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 |
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