CN105668944B - A kind of Riparian Zone subtracts dirty method - Google Patents

A kind of Riparian Zone subtracts dirty method Download PDF

Info

Publication number
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
Authority
CN
China
Prior art keywords
riparian zone
plant
soil
diafiltration
riparian
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201610200331.9A
Other languages
Chinese (zh)
Other versions
CN105668944A (en
Inventor
华玉妹
张云
陈航
赵建伟
刘广龙
朱端卫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huazhong Agricultural University
Original Assignee
Huazhong Agricultural University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huazhong Agricultural University filed Critical Huazhong Agricultural University
Priority to CN201610200331.9A priority Critical patent/CN105668944B/en
Publication of CN105668944A publication Critical patent/CN105668944A/en
Application granted granted Critical
Publication of CN105668944B publication Critical patent/CN105668944B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/281Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/001Runoff or storm water
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used

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

A kind of Riparian Zone subtracts dirty method
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.
CN201610200331.9A 2016-03-31 2016-03-31 A kind of Riparian Zone subtracts dirty method Expired - Fee Related CN105668944B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610200331.9A CN105668944B (en) 2016-03-31 2016-03-31 A kind of Riparian Zone subtracts dirty method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610200331.9A CN105668944B (en) 2016-03-31 2016-03-31 A kind of Riparian Zone subtracts dirty method

Publications (2)

Publication Number Publication Date
CN105668944A CN105668944A (en) 2016-06-15
CN105668944B true CN105668944B (en) 2018-12-28

Family

ID=56224938

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610200331.9A Expired - Fee Related CN105668944B (en) 2016-03-31 2016-03-31 A kind of Riparian Zone subtracts dirty method

Country Status (1)

Country Link
CN (1) CN105668944B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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 *

Also Published As

Publication number Publication date
CN105668944A (en) 2016-06-15

Similar Documents

Publication Publication Date Title
CN104620838B (en) Reservoir drawdown band method for recovering vegetation
CN202730934U (en) System for intercepting, shunting, regulating, storing and treating initial rainwater
CN104817182B (en) The method building preventing and controlling agricultural area source pollution cold district riparian buffer strips
CN206472556U (en) A kind of multifunctional ecological tree pond for being used for pavement rainwater purification and utilizing
CN104452653B (en) The lake buffer strip building method that a kind of pollution of area source controls
CN104429529B (en) A kind of construction method of buffer area ecology Riparian zone
CN207130104U (en) A kind of pollution of area source region enters lake runoff water systems'phosphorus abatement device
CN104047262A (en) Composite curtain wall for efficiently intercepting pollutants in farmland surface source
CN102115261B (en) Purifying functional wetland plant screening pool
CN107893469A (en) One kind oozes row's integral system based on sponge urban rainwater
CN102225823B (en) Ecological protection method for rural surface water source through recycle and effective reduction of nitrogen and phosphor
CN109399800B (en) River and lake runoff pollution cascade control system
CN202430056U (en) Green belt gutter constructed wetland device for treatment of road rainfall runoff pollution
CN105668944B (en) A kind of Riparian Zone subtracts dirty method
CN105967339A (en) Method and device for ecological pond purification treatment of heavy metal-polluted irrigation water
CN103351081A (en) Construction method for ecological filtration bank used for purifying agricultural runoff pollution
KR100966646B1 (en) Non-point source contaminant treatment apparatus
CN207267822U (en) A kind of plant life filtration system for improving city overland runoff polluted by nitrogen and removing
CN109422426A (en) A kind of Landscape River repair system
CN208701843U (en) A kind of novel rainwater pollutant delay facility for sponge city
CN208434404U (en) A kind of sponge city pavement ecology tree pond
CN112746593B (en) Construction method of low-maintenance ecological wetland
CN107905208B (en) Water and soil conservation structure for accelerating rock weathering in stony desertification region and construction method thereof
CN110040853A (en) A method of suitable for the synchronous restoration of the ecosystem of Mountain river rural area section waterfront
CN107117713A (en) A kind of method of the riverside zone artificial swamp of purified treatment cadmium pollution irrigation water

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20181228

CF01 Termination of patent right due to non-payment of annual fee