CN205990603U - A kind of ecoscape revetment structure of in-situ immobilization heavy metal pollution river bottom mud - Google Patents
A kind of ecoscape revetment structure of in-situ immobilization heavy metal pollution river bottom mud Download PDFInfo
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- CN205990603U CN205990603U CN201620721973.9U CN201620721973U CN205990603U CN 205990603 U CN205990603 U CN 205990603U CN 201620721973 U CN201620721973 U CN 201620721973U CN 205990603 U CN205990603 U CN 205990603U
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Abstract
The utility model discloses a kind of ecoscape revetment structure of in-situ immobilization heavy metal pollution river bottom mud, including the obstruct wall being vertically arranged, intercept wall and be sequentially provided with foundation stone layer towards the side at river course center, polluted river channel sediment layer, solidification and stabilization layer, separated by geotextiles between solidification and stabilization layer with polluted river channel sediment layer between foundation stone layer and polluted bed mud layer, the bottom of solidification and stabilization layer is less than the bottom of polluted river channel sediment layer, what solidification and stabilization layer surfaced is partially covered with overburden layer, solidification and stabilization layer under water be partially covered with pollution-free sediment layer, intercept wall and extend downward horizon d, exceed overburden layer upwards, plant on overburden layer and be implanted with heavy metal accumulation plant, plant in pollution-free sediment layer and be implanted with plant；This utility model combines obstruct solidification and stabilization technology and phytoremediation technology, by high concentration heavy metal polluted bed mud intercepts solidification and stabilization in situ, stops the diffusion of heavy metal with stabilization agent using the mode that obstruct wall is combined.
Description
Technical field
This utility model is related to river course Heavy Metal Pollution Control technology, more particularly, to a kind of in-situ immobilization heavy metal pollution river
The ecoscape revetment structure of road bed mud.
Background technology
During modernized society of China high speed development, with the exploitation year after year of various Ores, ore dressing, each metalloid
Smelting, and all kinds of heavy duty industrial waste water such as chemical industry and plating is constantly discharged in natural environment, causes each Tai Ho Road water
The pollution of the serious heavy metal of body, the river course in particularly each mining area.In river water body, the heavy metal contaminants of the overwhelming majority pass through
Precipitation, absorption different physics chemical action various from complexation, oxidation and reduction etc., proceed in solid phase bed mud by water body, finally
Deposit and be progressively enriched with, lead to the content severe overweight of each heavy metal species in bed mud, cause serious environmental pollution.And bed mud
Middle heavy metal is in an unsure state, and animal migration is strong, can move towards with river course under field conditions (factors), migrate to downstream water system
In, flow into arable land, forest zone etc. with river, even into the drinking water source region in downstream city, heavy damage natural environment simultaneously
And ecosystem, the health of the harm mankind.The areas such as Hunan, Guangxi have occurred in that numerous Heavy Metal Pollution in Sediments phenomenons,
The pollution repairing river bottom mud has been increasingly becoming a urgent and challenge.
From the point of view of the restorative procedure currently for river bottom mud heavy metal pollution, mainly there are dystopy fixing-stable, dystopy
Drip washing process, dystopy intercept the methods such as Landfill, fixation in situ stabilisation, original position phytoremediation technology.Dystopy treatment technology
It is to focus on after Sediment Dredging, exists that construction work amount is big, control expense is high, and easy produce secondary pollution etc. and be
Lieque point.Intercepted using clay more than dystopy obstruct Landfill, barriering effect is not good.Patent CN204544963U discloses
Structure is repaired in a kind of obstruct of heavy metal pollution of soil, uses obstruct Landfill, directly connects including with contaminated soil
Tactile stabilized zone, is outwards once provided with impervious barrier and hydrophobic layer by described stabilized zone, is provided with least between impervious barrier and hydrophobic layer
One layer of geotextiles, also include vertical obstruct wall, intercept the periphery located at contaminated soil pair for the wall, it extends downward basement rock
Layer, exceeds earth's surface upwards, and described contaminated soil is coated on described obstruct within the walls.Contaminated soil is coated on obstruct by this technology
Between wall and stabilized zone+impervious barrier+hydrophobic layer composite bed, contaminated soil is intercepted with extraneous soil and comes so that being contaminated
Soil cannot occur material exchange with extraneous soil.It is a kind of closing Landfill it is impossible to truly realize contaminated soil
The reparation of earth.
In-situ solidifying stabilization technology is the appearance reducing heavy metal polluted bed mud by physics, chemistry or biological method
Long-pending, thus reducing the animal migration of heavy metal, and then reach the bed mud comprehensive improvement technology reducing heavy metal release.Original position is repaiied by plant
Recovering technology is by heavy-metal -tolerant plant, stablizes plant including heavy metal and heavy metal accumulation plant carrys out repairing heavy metal pollution
Bed mud.At present original position phytoremediation technology is substantially from the platymiscium of resistance to a huge sum of money, heavy metal accumulation plant and builds firm
The aspects such as phytobiocoenose come to launch study, but these plants are used for the engineering and technological research of the reparation of river bottom mud by reality
Seldom.Exploitation is a kind of to build the revetment structure that revetment, more conducively plant growing breeding and heavy metal polluted bed mud are repaired.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of life of in-situ immobilization heavy metal pollution river bottom mud
State landscape revetment structure.
Technical solution adopted in the utility model is：
A kind of ecoscape revetment structure of in-situ immobilization heavy metal pollution river bottom mud, including the obstruct being vertically arranged
Wall, described obstruct wall is sequentially provided with foundation stone layer, pollution located at polluted river channel periphery, described obstruct wall towards the side at river course center
River bottom mud layer, solidification and stabilization layer, are separated by geotextiles between described foundation stone layer and described polluted bed mud layer, described foundation stone
Layer is used for stablizing revetment structure, is separated by geotextiles, institute between described polluted river channel sediment layer and described solidification and stabilization layer
The bottom stating solidification and stabilization layer is less than the bottom of described polluted river channel sediment layer, the portion that described solidification and stabilization layer surfaces
Point be coated with overburden layer, described solidification and stabilization layer under water be partially covered with pollution-free sediment layer, described obstruct wall is to downward
Extend horizon d, exceed described overburden layer upwards, described overburden layer is planted and is implanted with heavy metal accumulation plant, described pollution-free bed mud
The layer ecological region planting more than 20cm for the depth of water has submerged plant, and the ecological region planting that the described pollution-free sediment layer depth of water is less than 20cm has very
Water plant.
In a kind of specific embodiment, described obstruct wall is concrete block wall, clay intercepts wall, bentonite intercepts
Any one of wall or HDPE film sandwich.
As the further improved procedure of such scheme, the thickness of described obstruct wall is 60mm-500mm.
In a kind of specific embodiment, described fixing-stable layer is the clay being mixed with fixing-stable chemical medicine agent
Layer.
In a kind of specific embodiment, described foundation stone layer include from bottom to top bulk riprap layer, fritter riprap layer and
Sandy gravel stratum.
As the further improved procedure of such scheme, the thickness of described foundation stone layer is 300-600mm.
In a kind of specific embodiment, described submerged plant is Herba vallisneriae Spiralis or black algae, and described emergent aquactic plant is floral leaf reed
Any one in bamboo, Rhizoma Acori Graminei, Canna generalis Bailey or Rhizoma Iridis Tectori, described heavy metal accumulation plant is appointing in Sedum alfredii Hance, red building or Chinese rose
A kind of.
The beneficial effects of the utility model are：
This utility model provides a kind of ecoscape revetment structure of in-situ immobilization heavy metal pollution river bottom mud, including
The obstruct wall being vertically arranged, described obstruct wall located at polluted river channel periphery, described intercept wall towards river course center side successively
It is provided with foundation stone layer, polluted river channel sediment layer, solidification and stabilization layer, between described foundation stone layer and described polluted bed mud layer, pass through geotechnique
Cloth separates, and described foundation stone layer is used for stablizing revetment structure, logical between described polluted river channel sediment layer and described solidification and stabilization layer
Cross geotextiles to separate, the bottom of described solidification and stabilization layer is less than the bottom of described polluted river channel sediment layer, described solidification is stable
Change layer surface be partially covered with overburden layer, described solidification and stabilization layer under water be partially covered with pollution-free sediment layer,
Described obstruct wall extends downward horizon d, exceeds described overburden layer upwards, described overburden layer is planted and is implanted with heavy metal accumulation plant
Thing, the ecological region planting more than 20cm for the described pollution-free sediment layer depth of water has submerged plant, and the described pollution-free sediment layer depth of water is less than
The ecological region planting of 20cm has emergent aquactic plant.Obstruct Landfill different from the past, intercepting Landfill is simple by dirt
Dye soil or bed mud are intercepted with extraneous soil and current and come, and this utility model combines the solidification and stabilization technology that intercepts in situ
With phytoremediation technology, by high concentration heavy metal polluted bed mud being intercepted in situ solidification and stabilization, using intercept wall with stable
The mode of physics+chemistry that chemical medicine agent combines stops the diffusion of heavy metal, and builds rational aquatic vegetation thus reaching
The purpose of the long-acting heavy metal pollution repairing river bottom mud, plantation emergent aquactic plant, submerged plant in river course bank band wetland simultaneously
And revetment side heavy metal accumulation plant, form emergent vegetation zone, submerged plant band and bank band vegetational zone respectively, make constructed
Revetment structure reaches certain ecoscape effect while repairing river bottom mud heavy metal pollution.
Brief description
Fig. 1 is the profile of the ecoscape revetment structure of in-situ immobilization heavy metal pollution river bottom mud.
Specific embodiment
Below with reference to embodiment and accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is carried out
Clearly and completely describe, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of embodiment of the present utility model, rather than whole embodiments, based on embodiment of the present utility model, the skill of this area
The other embodiment that art personnel's on the premise of not paying creative work is obtained, belongs to the model of this utility model protection
Enclose.In addition, all connection/annexations being related in patent, not singly refer to component and directly connect, and refer to can be according to concrete
Performance, by adding or reducing connection auxiliary, to form more excellent draw bail.Each skill in this utility model creation
Art feature, can be with combination of interactions on the premise of not conflicting conflict.
Embodiment 1：
With reference to Fig. 1, this utility model provides a kind of ecoscape revetment of in-situ immobilization heavy metal pollution river bottom mud
Structure, including the obstruct wall 1 being vertically arranged, located at polluted river channel 2 periphery, described obstruct wall 1 is towards river course 2 for described obstruct wall 1
The side at center is sequentially provided with foundation stone layer 3, polluted river channel sediment layer 4, solidification and stabilization layer 5, described foundation stone layer 3 and described pollution
Separated by geotextiles 6 between sediment layer 4, described foundation stone layer 3 is used for stablizing revetment structure, described polluted river channel sediment layer 4 He
Separated by geotextiles 6 between described solidification and stabilization layer 5, the bottom of described solidification and stabilization layer 5 is less than described polluted river channel
The bottom of sediment layer 4, what described solidification and stabilization layer 5 surfaced is partially covered with overburden layer 7, described solidification and stabilization layer 5
Under water be partially covered with pollution-free sediment layer 8, described obstruct wall 1 extends downward horizon d, exceeds described overburden layer upwards
7, described overburden layer 7 is planted and is implanted with heavy metal accumulation plant 9, the ecological region planting more than 20cm for described pollution-free sediment layer 8 depth of water
There is submerged plant 10, the ecological region planting that described pollution-free sediment layer 8 depth of water is less than 20cm has emergent aquactic plant 11.Described obstruct wall 1
For concrete block wall.The described thickness intercepting wall 1 is 500mm.Described fixing-stable layer 5 is to be mixed with fixing-stable chemical medicine
The soil horizon of agent.Described foundation stone layer 3 includes bulk riprap layer, fritter riprap layer and sandy gravel stratum from bottom to top.Described foundation stone layer 3
Thickness is 300mm.Described submerged plant 10 is Herba vallisneriae Spiralis, and described emergent aquactic plant 11 is Arundo donax, described heavy metal accumulation plant 9
For Sedum alfredii Hance.Plantation emergent aquactic plant 11, submerged plant 10 and revetment side heavy metal accumulation plant in river course bank band wetland
9, form emergent vegetation zone, submerged plant band and bank band vegetational zone respectively, make constructed revetment structure repair river bottom mud
Certain ecoscape effect is reached while heavy metal pollution.
Embodiment 2：
The present embodiment is substantially the same manner as Example 1, and difference is：Described obstruct wall 1 is HDPE film sandwich, institute
The thickness stating obstruct wall 1 is 60mm.Described fixing-stable layer 5 is the clay layer being mixed with fixing-stable chemical medicine agent.Described base
Rock layers 3 include bulk riprap layer, fritter riprap layer and sandy gravel stratum from bottom to top.The thickness of described foundation stone layer 3 is 600mm.Described
Submerged plant 10 is black algae, and described emergent aquactic plant 11 is Canna generalis Bailey, and described heavy metal accumulation plant 9 is red building.
Embodiment 3：
The present embodiment is substantially the same manner as Example 1, and difference is：Described obstruct wall 1 intercepts wall, described resistance for clay
The thickness of partition wall 1 is 300mm.Described fixing-stable layer 5 is the clay layer being mixed with fixing-stable chemical medicine agent.Described foundation stone layer
3 include bulk riprap layer, fritter riprap layer and sandy gravel stratum from bottom to top.The thickness of described foundation stone layer 3 is 400mm.Described heavy water
Plant 10 is black algae, and described emergent aquactic plant 11 is Rhizoma Acori Graminei, and described heavy metal accumulation plant 9 is Chinese rose.
Embodiment 4：
The present embodiment is substantially the same manner as Example 1, and difference is：Described obstruct wall 1 intercepts wall for bentonite, described
The thickness intercepting wall 1 is 400mm.Described fixing-stable layer 5 is the clay layer being mixed with fixing-stable chemical medicine agent.Described foundation stone
Layer 3 includes bulk riprap layer, fritter riprap layer and sandy gravel stratum from bottom to top.The thickness of described foundation stone layer 3 is 400mm.Described heavy
Water plant 10 is black algae, and described emergent aquactic plant 11 is Rhizoma Iridis Tectori, and described heavy metal accumulation plant 9 is Chinese rose.
Claims (6)
1. a kind of ecoscape revetment structure of in-situ immobilization heavy metal pollution river bottom mud is it is characterised in that include vertically setting
The obstruct wall put, described obstruct wall is sequentially provided with base located at polluted river channel periphery, described obstruct wall towards the side at river course center
Rock layers, polluted river channel sediment layer, solidification and stabilization layer, are divided by geotextiles between described foundation stone layer and described polluted bed mud layer
Every described foundation stone layer is used for stablizing revetment structure, passes through soil between described polluted river channel sediment layer and described solidification and stabilization layer
Work cloth separates, and the bottom of described solidification and stabilization layer is less than the bottom of described polluted river channel sediment layer, described solidification and stabilization layer
That surfaces is partially covered with overburden layer, described solidification and stabilization layer under water be partially covered with pollution-free sediment layer, described
Intercept wall and extend downward horizon d, exceed described overburden layer upwards, described overburden layer is planted and is implanted with heavy metal accumulation plant, institute
Stating the ecological region planting that the pollution-free sediment layer depth of water is more than 20cm has submerged plant, and the described pollution-free sediment layer depth of water is less than 20cm's
Ecological region planting has emergent aquactic plant.
2. the ecoscape revetment structure of in-situ immobilization heavy metal pollution river bottom mud according to claim 1, its feature
Be, described intercept wall be concrete block wall, clay intercept wall, bentonite intercept arbitrary in wall or HDPE film sandwich
Individual.
3. the ecoscape revetment structure of in-situ immobilization heavy metal pollution river bottom mud according to claim 2, its feature
It is, the described thickness intercepting wall is 60mm-500mm.
4. the ecoscape revetment structure of in-situ immobilization heavy metal pollution river bottom mud according to claim 1, its feature
It is, described foundation stone layer includes bulk riprap layer, fritter riprap layer and sandy gravel stratum from bottom to top.
5. the ecoscape revetment structure of in-situ immobilization heavy metal pollution river bottom mud according to claim 4, its feature
It is, the thickness of described foundation stone layer is 300-600mm.
6. the ecoscape revetment structure of in-situ immobilization heavy metal pollution river bottom mud according to claim 1, its feature
It is, described submerged plant is Herba vallisneriae Spiralis or black algae, described emergent aquactic plant is appointing in Arundo donax, Rhizoma Acori Graminei, Canna generalis Bailey or Rhizoma Iridis Tectori
One kind, described heavy metal accumulation plant is any one in Sedum alfredii Hance, red building or Chinese rose.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917383A (en) * | 2017-03-02 | 2017-07-04 | 中钢集团鞍山热能研究院有限公司 | The absorption that preventing and treating river course river interacts migration stain with riverbank heavy metal in soil intercepts wall |
| CN107445422A (en) * | 2017-08-03 | 2017-12-08 | 山东建筑大学 | A kind of pollution of river bed mud ecological restoring method |
| CN108164106A (en) * | 2018-02-02 | 2018-06-15 | 清华大学 | A kind of curing based on abandoned biomass and pollution of river bed mud recycling |
| CN109205797A (en) * | 2018-09-14 | 2019-01-15 | 湖南新九方科技有限公司 | A kind of restorative procedure in heavy metal pollution waters |
| CN109555109A (en) * | 2018-10-12 | 2019-04-02 | 云南省环境科学研究院(中国昆明高原湖泊国际研究中心) | A kind of system that resistance control in situ is carried out to the mine tailings containing heavy metal |
| CN112723694A (en) * | 2021-01-11 | 2021-04-30 | 岭南水务集团有限公司 | Ecological island with function of in-situ remediation of heavy metal polluted bottom mud and implementation method thereof |
| CN114160558A (en) * | 2021-11-16 | 2022-03-11 | 辽宁中博生态环境技术有限公司 | Contaminated soil in-situ chemical barrier material and preparation and application thereof |
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- 2016-07-08 CN CN201620721973.9U patent/CN205990603U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917383A (en) * | 2017-03-02 | 2017-07-04 | 中钢集团鞍山热能研究院有限公司 | The absorption that preventing and treating river course river interacts migration stain with riverbank heavy metal in soil intercepts wall |
| CN107445422A (en) * | 2017-08-03 | 2017-12-08 | 山东建筑大学 | A kind of pollution of river bed mud ecological restoring method |
| CN107445422B (en) * | 2017-08-03 | 2020-10-23 | 山东建筑大学 | Ecological restoration method for river polluted bottom mud |
| CN108164106A (en) * | 2018-02-02 | 2018-06-15 | 清华大学 | A kind of curing based on abandoned biomass and pollution of river bed mud recycling |
| CN108164106B (en) * | 2018-02-02 | 2020-12-01 | 清华大学 | Curing method based on resource utilization of waste biomass and river pollution bottom mud |
| CN109205797A (en) * | 2018-09-14 | 2019-01-15 | 湖南新九方科技有限公司 | A kind of restorative procedure in heavy metal pollution waters |
| CN109555109A (en) * | 2018-10-12 | 2019-04-02 | 云南省环境科学研究院(中国昆明高原湖泊国际研究中心) | A kind of system that resistance control in situ is carried out to the mine tailings containing heavy metal |
| CN112723694A (en) * | 2021-01-11 | 2021-04-30 | 岭南水务集团有限公司 | Ecological island with function of in-situ remediation of heavy metal polluted bottom mud and implementation method thereof |
| CN114160558A (en) * | 2021-11-16 | 2022-03-11 | 辽宁中博生态环境技术有限公司 | Contaminated soil in-situ chemical barrier material and preparation and application thereof |
| CN114160558B (en) * | 2021-11-16 | 2023-10-31 | 辽宁中博生态环境技术有限公司 | In-situ chemical barrier material for polluted soil and preparation and application thereof |
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Address after: Unit 2002, 20 / F, block B, phase I, Tianan cloud Valley Industrial Park, 2018 Xuegang Road, Bantian street, Longgang District, Shenzhen, Guangdong 518000 Patentee after: Cecep Tiehan ecological environment Co.,Ltd. Address before: 518040 No.3 Factory B1401, Tianan Digital Innovation Park, Longcheng Street, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN TECHAND ECOLOGICAL ENVIRONMENT Co.,Ltd. |
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