CN210313711U - A cover structure for river course pollutes bed mud normal position ecological remediation - Google Patents
A cover structure for river course pollutes bed mud normal position ecological remediation Download PDFInfo
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- CN210313711U CN210313711U CN201920962535.5U CN201920962535U CN210313711U CN 210313711 U CN210313711 U CN 210313711U CN 201920962535 U CN201920962535 U CN 201920962535U CN 210313711 U CN210313711 U CN 210313711U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/402—River restoration
Abstract
The application relates to a cover structure for river pollution bed mud normal position ecological remediation, include: the isolation adsorption layer is laid on the polluted bottom mud laid at the bottom of the river channel after in-situ treatment, and is used for adsorbing pollutants released by the polluted bottom mud and isolating the polluted bottom mud from contacting with the river channel water environment; the sand cushion layer is laid on the isolation adsorption layer and used for protecting the isolation adsorption layer; and the scour prevention layer is laid on the sand cushion layer. This structure of this application adsorbs the pollutant that pollutes the bed mud release to and the contact of isolated polluted bed mud and river course water environment, the washing away of river course water environment reduction river is protected, makes the cover structure can use for a long time. Moreover, the structure is simple and easy to construct.
Description
Technical Field
The application relates to the technical field of river pollution sediment in-situ ecological restoration, in particular to a covering structure for river pollution sediment in-situ ecological restoration.
Background
In the treatment of river channels and black and odorous water, a large amount of bottom mud is deposited at the bottom of the river channels, and the bottom mud contains pollutants such as heavy metals, Polycyclic Aromatic Hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and the like. The ex-situ disposal of a large amount of contaminated substrate sludge is costly and has no accommodation. The polluted bottom mud of the river channel is treated in situ, but the pollutants of the discharged bottom mud can be continuously released to the environment, and the water environment pollution of the river channel can be caused. The adsorption and isolation of the bottom mud pollutants from contacting with the river water environment become an important technical problem.
In the related technology, Chinese patent CN102757129B discloses an in-situ ecological restoration method for polluted bottom mud of a river channel, wherein upper, middle and lower layers of vegetation ecological concrete are laid on the bottom mud of the river channel, and the lower layer is non-foaming vegetation ecological concrete with the thickness of 5cm-10cm and has the function of preventing the bottom mud pollutants from being released to an overlying water body; adding iron-aluminum oxide into the concrete; the middle layer is foamed plant-growing ecological concrete with the thickness of 10cm, the function of the middle layer is to provide a carrier for the growth of submerged plants, activated carbon particle piles are distributed in the foamed concrete layer, and the submerged plants are planted in the activated carbon particle piles; the upper layer is foamed vegetation ecological concrete with the thickness of 2cm-5cm, and the iron-aluminum oxide is added into the concrete of the upper layer. The inventors have found that the structure of this patent is relatively costly and the covering structure is not protected.
In addition, chinese patent CN206337131U discloses an ecological blanket for in-situ remediation of polluted bottom mud, which is composed of four layers of structure, including a surface layer, a vegetation layer, an active layer and a carrier layer from top to bottom, and piles and concrete nails for fixing the ecological blanket in a river bed are arranged at the edge or inside of the ecological blanket; the ecological blanket can cover the bottom sediment of the polluted water body to isolate the pollutants in the bottom sediment from entering the water body; meanwhile, the aquatic plants in the vegetation layer and the active substances in the active layer are utilized to absorb and degrade the pollutants in the bottom mud, so that the technical effect of treating the pollution of the bottom mud of the water body is achieved. The inventors have found that the structure of this patent is relatively costly and the covering structure is not protected.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem or at least partially solve the above technical problem, the present application provides a covering structure for in-situ ecological remediation of river polluted bottom mud.
The application provides a cover structure for ecological restoration of river course pollution bed mud normal position includes: the isolation adsorption layer is laid on the polluted bottom mud laid at the bottom of the river channel after in-situ treatment, and is used for adsorbing pollutants released by the polluted bottom mud and isolating the polluted bottom mud from contacting with the river channel water environment; the sand cushion layer is laid on the isolation adsorption layer and used for protecting the isolation adsorption layer; and the scour prevention layer is laid on the sand cushion layer.
In certain embodiments, an isolation adsorbent layer, comprises: upper and lower geotextile layers, and active material filled between the two geotextile layers.
In certain embodiments, the erosion protection layer is a gravel layer comprising gravel.
In certain embodiments, the gravel has a particle size of between 60mm and 150mm and the thickness of the gravel layer is no less than 10 cm.
In certain embodiments, the sand cushion layer has a thickness of no less than 10 cm.
In certain embodiments, each geotextile is no less than 400g/m2。
According to the structure provided by the embodiment of the application, the isolation adsorption layer is laid on the polluted bottom mud laid at the bottom of the river channel after in-situ treatment, so that pollutants released by the polluted bottom mud are adsorbed, and the contact between the polluted bottom mud and the river channel water environment is isolated; the sand cushion layer is laid on the isolation adsorption layer to protect the adsorption layer; the scour protection layer is laid on the sand cushion layer, reduces the scouring of river water, and makes the covering structure be used for a long time. Moreover, the structure is simple and easy to construct.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is the embodiment of the utility model provides a covering structure's schematic diagram for river course pollutes bed mud normal position ecological remediation.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following description, suffixes such as "module", "part", or "unit" used to denote elements are used only for the convenience of description of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "first", "second", "third", etc. are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
The terms "upper", "lower", "left", "right", "inner", "outer", and the like refer to orientations or positional relationships based on the drawings, or the orientations or positional relationships that are conventionally used to place the products of the present invention, and are used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "vertical" and the like do not require absolute perpendicularity between the components, but may be slightly inclined. Such as "vertical" merely means that the direction is relatively more vertical and does not mean that the structure must be perfectly vertical, but may be slightly inclined.
In the description of the present invention, it is also to be understood that the terms "disposed," "mounted," "connected," and the like are intended to be construed broadly unless otherwise specifically indicated and limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the application provides a covering structure for river pollution sediment in-situ ecological restoration, and as shown in reference to fig. 1, the covering structure comprises: the isolation adsorption layer 2 is laid on the polluted bottom mud 1 laid on the bottom 10 of the river channel after in-situ treatment, and is used for adsorbing pollutants released by the polluted bottom mud 1 and isolating the polluted bottom mud 1 from contacting with the river channel water environment 5; the sand cushion layer 3 is laid on the isolation adsorption layer 2 and used for protecting the isolation adsorption layer 2; and the scour prevention layer 4 is laid on the sand cushion layer 3.
In certain embodiments, and as shown with reference to fig. 1, the isolation adsorbent layer 2, comprises: upper and lower geotextile layers, and active material filled between the two geotextile layers. In certain embodiments, the active material may be filled with organoclays, apatites, activated carbons, zeolites, zero-valent iron, and the like, respectively. In certain embodiments, each geotextile is no less than 400g/m2。
In certain embodiments, the erosion protection layer 4 is a gravel layer comprising gravel. In certain embodiments, the gravel has a particle size of between 60mm and 150mm and the thickness of the gravel layer is no less than 10 cm.
In certain embodiments, the sand cushion 3 has a thickness of no less than 10 cm.
According to the structure provided by the embodiment of the application, the isolation adsorption layer is laid on the polluted bottom mud laid at the bottom of the river channel after in-situ treatment, so that pollutants released by the polluted bottom mud are adsorbed, the contact between the polluted bottom mud and the river channel water environment is isolated, and the river channel water environment is protected; the sand cushion layer is laid on the isolation adsorption layer to protect the adsorption layer; the scour protection layer is laid on the sand cushion layer, reduces the scouring of river water, and makes the covering structure be used for a long time. Moreover, the structure is simple and easy to construct.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description, and do not represent the advantages and disadvantages of the embodiments of the present invention.
While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (6)
1. A cover structure for river pollution sediment normal position ecological remediation, its characterized in that includes:
the isolation adsorption layer is laid on the polluted bottom mud laid at the bottom of the river channel after in-situ treatment, and is used for adsorbing pollutants released by the polluted bottom mud and isolating the polluted bottom mud from contacting with the river channel water environment;
the sand cushion layer is laid on the isolation adsorption layer and used for protecting the isolation adsorption layer;
and the anti-scouring layer is laid on the sand cushion layer.
2. The covering structure for in-situ ecological restoration of river polluted bottom mud according to claim 1, wherein the isolation and adsorption layer comprises: the geotextile comprises an upper geotextile layer, a lower geotextile layer and an active material filled between the two geotextile layers.
3. A cover structure for in situ ecological remediation of river contaminated sediment according to claim 1 or 2, wherein the erosion protection layer is a gravel layer comprising gravel.
4. The covering structure for in-situ ecological remediation of river contaminated sediment according to claim 3, wherein the gravel has a particle size of between 60mm and 150mm and the thickness of the gravel layer is no less than 10 cm.
5. The covering structure for in-situ ecological remediation of river polluted bottom mud according to claim 1 or 2, wherein the thickness of the sand cushion layer is not less than 10 cm.
6. The covering structure for in-situ ecological restoration of polluted bottom mud in river channels as claimed in claim 2, wherein each layer of geotextile is not less than 400g/m2。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920962535.5U CN210313711U (en) | 2019-06-25 | 2019-06-25 | A cover structure for river course pollutes bed mud normal position ecological remediation |
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| CN201920962535.5U CN210313711U (en) | 2019-06-25 | 2019-06-25 | A cover structure for river course pollutes bed mud normal position ecological remediation |
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| CN210313711U true CN210313711U (en) | 2020-04-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809105A (en) * | 2022-03-03 | 2022-07-29 | 北京中岩大地环境科技有限公司 | In-situ horizontal multi-layer barrier construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809105A (en) * | 2022-03-03 | 2022-07-29 | 北京中岩大地环境科技有限公司 | In-situ horizontal multi-layer barrier construction method |
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