CN210065310U

CN210065310U - Infiltration wall and ecological pond

Info

Publication number: CN210065310U
Application number: CN201920027791.5U
Authority: CN
Inventors: 唐利; 马奇峰; 隋萍; 王晓黎
Original assignee: Shanghai Garden Design And Research General Institute Co Ltd
Current assignee: Shanghai Garden Design And Research General Institute Co Ltd
Priority date: 2019-01-08
Filing date: 2019-01-08
Publication date: 2020-02-14
Anticipated expiration: 2029-01-08

Abstract

The utility model discloses a permeate wall and ecological pond, permeate the wall including precoat, gravel layer and stone cage net, the width gradual change of precoat, the surface attachment of precoat has the one deck biomembrane, and the gravel layer setting is the ladder face in the outside of precoat and its both sides face, and the stone cage net cladding is in the gravel layer outside, laid one deck impervious material layer on the up end of precoat, gravel layer and stone cage net, be equipped with one deck soil horizon on the impervious material layer. The utility model discloses a permeate wall can adsorb suspended particles, the nitrogen and the phosphorus of dissolving the attitude in the filtration water, has improved the purification efficiency of quality of water.

Description

Infiltration wall and ecological pond

Technical Field

The utility model relates to a water treatment technical field especially relates to a permeate wall and ecological pond.

Background

In the landscape water treatment method, a common method is an ex-situ treatment method, wherein the ex-situ treatment method is to lead out landscape water from a water body, discharge the landscape water back to the water body after treatment, and the method needs additional land occupation and is not suitable for being adopted under the conditions that the treated water quantity is large and no extra land is available around the treated water quantity. In the prior art, the landscape water can also be purified by adopting a conventional in-situ ecological treatment method. However, the normal in-situ ecological treatment method only adopts aquatic plants for purification, and because the removal effect of the plants on nitrogen and phosphorus in water is limited, when the content of nitrogen and phosphorus in water is high, the nitrogen and phosphorus in water cannot be effectively removed in a short time.

Disclosure of Invention

In view of this, the utility model provides a infiltration wall and ecological pond for solve the problem that exists among the above-mentioned background art.

The ecological pond permeation wall comprises a filter material layer, a gravel layer and a stone cage net, wherein the width of the filter material layer is gradually changed, a layer of biological membrane is attached to the surface of the filter material layer, the gravel layer is arranged on the outer side of the filter material layer, two side faces of the gravel layer are step faces, the stone cage net is coated on the outer side of the gravel layer, an anti-seepage material layer is laid on the upper end faces of the filter material layer, the gravel layer and the stone cage net, and a soil layer used for planting plants is arranged on the anti-seepage material layer.

Preferably, the width dimension of the filter material layer is gradually reduced from bottom to top along the longitudinal axis of the filter material layer, and two side faces of the filter material layer are stepped faces.

Preferably, the thickness of the filter material layer is 0.7m-3 m.

Preferably, the filter material layer consists of a plurality of zeolite filter materials, and the particle size of each zeolite filter material is 8 mm.

Preferably, the thickness of the gravel layer is 0.5m, and the particle size of the gravel is 25 mm.

Preferably, the thickness of the soil layer is at least 30cm, and the plants planted on the soil layer are emergent aquatic plants or plants of the same variety as the plants on the landscape green land around the permeable wall.

Preferably, the gabion mesh is a mesh structure woven by zinc-5% aluminum-mixed rare earth alloy steel wires.

An ecological pond comprises an ecological pond body and a plurality of permeable walls, wherein the permeable walls are arranged on opposite side walls of the ecological pond body in a staggered mode along the water flow direction.

Preferably, the length of the permeable wall is 2/3 the width of the pond where the permeable wall is located.

The utility model has the advantages that:

the ecological pond infiltration wall of this application can adsorb suspended particles, the nitrogen and the phosphorus of dissolving attitude in the filtration water, has improved the purification efficiency of quality of water. In the actual use process, a plurality of permeation walls are arranged in the ecological pond in a staggered manner, so that water flow is baffled and moves forward, the contact time between the water body and the submerged plants is prolonged, the water body can be subjected to double filtration through the submerged plants and the permeation walls, and the purification efficiency of water quality is improved; plants are planted on the permeation wall, so that the permeation wall can be integrated with the landscape on the bank side, and the landscape effect is not influenced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a permeable wall.

Fig. 2 is a schematic structural diagram of an ecological pond.

The reference numerals in the figures have the meaning: 1 is a filter material layer, 2 is a gravel layer, 3 is a gabion net, 4 is an impermeable material layer, 5 is a soil layer, 6 is a permeable wall, 7 is an ecological pond body, and 8 is water flow.

Detailed Description

For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.

It should be clear that the described embodiments are only some, but not all embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

The present application is described in further detail below with reference to specific embodiments and with reference to the attached drawings.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described with reference to the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

The embodiment of the utility model provides a permeate wall. The filter material layer in the permeable wall can filter suspended particles and dissolved nitrogen and phosphorus in the water body, and organic matters, nitrogen, phosphorus and the like are degraded through metabolism of microorganisms attached to the filter material layer, so that the aim of purifying the water body is fulfilled.

Referring to fig. 1, it is the structure schematic diagram of the ecological pond infiltration wall of the utility model. As shown in the figure, the ecological pond penetration wall comprises a filter material layer 1, a gravel layer 2 and a gabion mesh 3.

Specifically, the filter material layer 1 is a structure with gradually-changed width formed by stacking a plurality of zeolite filter materials, a layer of biological membrane (referred to as microorganism) is covered on the surface of the filter material layer 1, and the zeolite surface is provided with a plurality of holes in which the microorganism can be attached. When water in the ecological pond flows through the filter material layer 1, suspended particles in the water can be intercepted by the zeolite, dissolved nitrogen and phosphorus can be adsorbed in holes on the surface of the zeolite, and microorganisms degrade organic matters, nitrogen and phosphorus through metabolism of the microorganisms. In this embodiment, the width of the filter material layer 1 gradually increases from water to the bank; two side surfaces of the filter material layer 1 can be set as step surfaces; the thickness of the filter material layer 1 is 0.7m-3m, and the particle size of the zeolite filter material in the filter material layer 1 is 8 mm.

The gravel layer 2 is arranged on the outside of the filter material layer. The upper end surface of the gravel layer 2 is flush with the upper end surface of the filter material layer 1 or is slightly higher than the upper end surface of the filter material layer 1. The shape of the inner side surface of the gravel layer 2 is matched with the shape of the side surface of the filter material layer 1, namely, the inner side surface of the gravel layer 2 is attached to the left side surface and the right side surface of the filter material layer 1. The left and right lateral surfaces (outer lateral surfaces) of the gravel layer 2 are stepped surfaces, and the outside of the gravel layer 2 is coated by the gabion mesh 3. In this example, the thickness of the gravel layer 2 was 0.5m, and the particle size of the gravel was 25 mm; the gabion mesh 3 is a mesh structure woven by zinc-5% aluminum-mixed rare earth alloy steel wires, the mesh diameter is 100mm, the corrosion resistance is more than 3 times of that of the traditional pure zinc plating, the steel wire diameter is 2mm-4mm, and the tensile strength of the steel wire is not less than 380Mpa (or 38 kg/m)²)。

The upper end surfaces of the filter material layer 1, the gravel layer 2 and the gabion mesh 3 are provided with a layer of impermeable material layer 4, specifically, the impermeable material layer 4 can be made of nylon geotextile with the specification of 200-inch sand 250 g/m²The device is mainly used for preventing the soil layer on the geotextile from running off to the lower filter material layer to block the filter material. And a soil layer 5 for planting plants is arranged on the impervious material layer 4. The thickness of the soil layer 5 is at least 30cm, and emergent aquatic plants or plants with the same variety as that on landscape green land around the permeable wall are planted on the soil layer 5.

As shown in fig. 2, the ecological pond of the application comprises an ecological pond body 7 and a plurality of permeable walls 6. A plurality of permeable walls 6 are arranged on the opposite side walls of the ecological pond 7 in an offset mode along the water flow direction, and the width of each permeable wall 6 is 2/3 of the width of the pond where the permeable wall is located.

Submerged plants such as eel grass, malayan eyedrops, watermifoil, small arrowhead algae, large arrowhead algae, goldfish algae, hydrilla verticillata and the like are planted in the ecological pond 6, aquatic animals such as benthonic animals, filter feeding fishes, carnivorous fishes and the like are bred, and silver carp and bighead carp fishes, mussels, snails and the like can be bred in the benthonic animals. The planting area of the submerged plants is 60% of the area of the water body in the ecological pond, and the planting amount of each plant is the ratio of the total planting amount of the plants to the planting type of the plants. Thus, after the river water or the surface water flows into the ecological pond from the water inlet at the flow speed of not more than 6m/s, the river water or the surface water is baffled to advance under the guide of the permeable wall, and the river water or the surface water can be subjected to double filtration through the submerged plants and the permeable wall.

When water flows through the permeation wall, the filter material layer 1 in the permeation wall intercepts suspended particles in water, dissolved nitrogen and phosphorus can be adsorbed on the surface of the filter material layer, and the suspended particles, the dissolved nitrogen and the dissolved phosphorus are degraded by the biological membrane covered on the surface of the filter material layer 1. Meanwhile, the planted submerged plants and aquatic animals purify suspended particles, dissolved nitrogen and phosphorus in water through self-metabolism.

When water in the ecological pond flows through the submerged plants, suspended matters in the water can be intercepted on the plants, so that the settling time of the suspended matters is shortened, the water is clearer, and because the whole plants of the submerged plants are immersed in the water, roots, stems and leaves of the submerged plants can directly obtain nitrogen and phosphorus nutrition from the water to degrade the nitrogen and phosphorus; the micro oxygen and secretion generated by the plants can inhibit the growth of algae, and avoid the generation of odor of the water body. Aquatic animals in the water can directly intake the microalgae in the water, so that the occurrence probability of eutrophication is reduced.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The permeable wall is characterized by comprising a filter material layer (1), a gravel layer (2) and a stone cage net (3), wherein the width of the filter material layer (1) is gradually changed, a layer of biological membrane is attached to the surface of the filter material layer (1), the gravel layer (2) is arranged on the outer side of the filter material layer (1), the stone cage net (3) is coated on the outer side of the gravel layer (2), an impermeable material layer (4) is laid on the upper end surfaces of the filter material layer (1), the gravel layer (2) and the stone cage net (3), and a soil layer (5) for planting plants is arranged on the impermeable material layer (4).

2. Permeable wall according to claim 1, characterized in that the width dimension of the precoat (1) increases from the water to the shore.

3. Permeable wall according to claim 2, characterized in that the thickness of the filter bed (1) is 0.7-3 m.

4. The permeable wall according to claim 3, characterized in that the filter material layer (1) consists of zeolite filter material, the particle size of which is 8 mm.

5. Permeable wall according to claim 1, characterized in that the thickness of the gravel layer (2) is 0.5m and the particle size of the gravel is 25 mm.

6. The permeable wall according to claim 1, characterized in that the thickness of the soil layer (5) is at least 30cm, and the plants planted on the soil layer (5) are emergent aquatic plants or plants of the same species as on the green of the landscape surrounding the permeable wall.

7. Permeable wall according to claim 1, characterized in that the gabion mesh (3) is a mesh structure woven from zinc-5% aluminium-mischmetal steel wires.

8. An ecological pond, which is characterized by comprising an ecological pond body and a plurality of permeable walls of any one of claims 1 to 7, wherein the plurality of permeable walls are arranged on opposite side walls of the ecological pond body in a staggered mode along the water flow direction.

9. The ecological pond according to claim 8, characterized in that the length of the infiltration wall is 2/3 of the pond width where it is located.