Ecological block made of rural black and odorous water body sediment resource utilization

Abstract

The application discloses an ecological block made of rural black and odorous water body sediment resource utilization, so as to solve the problems of high cost, resource waste, poor anti-scouring ability and low service life of the existing black and odorous water body sediment disposal and slope protection bricks. The application comprises a sediment solidification support layer and a vegetation carrier layer embedded in the upper groove of the mud support layer, and a coconut net protection layer is arranged on the upper part of the vegetation carrier layer. The ecological brick has a simple structure, the stability and ecological function of the ecological brick in the slope protection engineering are ensured through the arrangement of the sediment solidification support layer, the vegetation carrier layer and the coconut net protection layer, the ecological brick can effectively prevent water and soil loss, the organic matter in the sediment is fully utilized as the nutrient substance for the growth of plants, resource utilization is realized, the growth of vegetation and the recovery of the ecological system are promoted, multiple values of "solid waste resource utilization + vegetation growth carrier + ecological protection" are realized, and the application has the advantages of low cost, simple construction, remarkable ecological benefits and the like.

Description

Technical Field

[0001] This application relates to the field of black and odorous water body treatment technology, specifically to an ecological block made from the resource utilization of bottom sediment in black and odorous water bodies in rural areas. Background Technology

[0002] Pollutants in the sediment of black and odorous water bodies in rural areas mainly come from livestock and poultry manure, agricultural fertilizers, and domestic sewage. The sediment is rich in organic matter, and when dissolved oxygen is insufficient, it produces a variety of malodorous gases, causing the water body to become black and odorous.

[0003] Currently, the main methods for disposing of riverbed sediment include landfill, production of building materials, and incineration. Landfilling consumes a large amount of land resources and poses a risk of secondary pollution; production of building materials or incineration are complex and costly. Furthermore, riverbed sediment contains a large amount of organic matter, which can serve as nutrients for plant growth; therefore, landfilling or incineration does not achieve resource utilization and results in resource waste. Additionally, current riverbank protection bricks are typically made of concrete, which has disadvantages such as high cost, poor permeability, limited vegetation growth, and cumbersome construction procedures and long construction periods.

[0004] Patent document CN220117579U discloses an ecological block containing riverbed sediment, which consists of four layers from bottom to top: the first layer is a sediment layer, the second layer is a clay layer, the third layer is a gravel layer, and the fourth layer is a planting soil layer. The ecological block can be used for plant planting and growth. This structure has the following shortcomings: 1. The bonding force between the upper planting soil and the gravel particles is low, making them easily carried away by runoff, resulting in rapid erosion of the block surface, poor scour resistance, and reduced service life; 2. The use of straw only for sediment solidification results in poor absorption of heavy metals and other harmful components, low solidification rate, and easy leaching, leading to pollution of the surrounding environment; 3. The poor permeability of the clay layer is not conducive to vegetation growth; 4. The block relies solely on the clay and gravel layers without mixing, resulting in insufficient block strength. Utility Model Content

[0005] Therefore, this application provides an ecological block made from the resource utilization of sediment from black and odorous water bodies in rural areas, in order to solve the problems of excessively high disposal costs and resource waste of existing sediment from black and odorous water bodies, or the poor erosion resistance and short service life of slope protection bricks.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] An ecological block made from the resource utilization of bottom sediment in rural black and odorous water bodies includes a brick body, wherein the brick body includes: a bottom sediment solidification support layer, a vegetation carrier layer and a coconut net protective layer;

[0008] The bottom mud solidification support layer has a groove in the middle, the vegetation carrier layer is embedded in the groove, the coconut net protective layer covers the upper surface of the vegetation carrier layer, and the upper surface of the coconut net protective layer is flush with the top surface of the groove, so that the top surface of the brick is on the same plane.

[0009] Optionally, the coconut mesh protective layer is a mesh structure made of coconut fibers.

[0010] Optionally, the sediment solidification support layer is composed of a mixture of aquatic sediment, oyster shell powder, crushed straw, and cementing materials.

[0011] Optionally, the vegetation carrier layer is composed of a mixture of bottom mud, lightweight ceramsite, straw powder, and humus.

[0012] Optionally, the moisture content of the bottom mud in the vegetation carrier layer is below 40%.

[0013] Optionally, plant seed capsules are spaced apart inside the vegetation carrier layer.

[0014] Optionally, the brick body is a square brick body, a rectangular brick body, or a hexagonal brick body.

[0015] Optionally, the bottom surface of the bottom mud solidification support layer is provided with anchoring ribs to enhance the bonding force between the brick and the slope and prevent the brick from sliding on the slope.

[0016] The bottom mud solidification support layer is provided with protrusions and grooves that match the protrusions around its perimeter for horizontal interlocking between adjacent ecological bricks.

[0017] Optionally, the thickness of the bottom mud solidification support layer is 100mm, the thickness of the vegetation carrier layer is 200-300mm, and the thickness of the coconut net protective layer is 10mm.

[0018] Compared with the prior art, this application has at least the following beneficial effects:

[0019] 1. Based on further analysis and research of existing technical problems, this application provides an ecological block made from the resource utilization of bottom sediment in rural black and odorous water bodies. The block includes a bottom sediment solidification support layer and a vegetation carrier layer embedded in the upper groove of the mud support layer. A coconut net protective layer is set on the upper part of the vegetation carrier layer. The ecological block structure of this application is simple. The setting of the bottom sediment solidification support layer, vegetation carrier layer and coconut net protective layer ensures the stability and ecological function of the ecological block in slope protection projects. It can effectively prevent soil erosion, improve erosion resistance and extend service life. It also makes full use of the organic matter in the bottom sediment as nutrients for plant growth, realizes the resource utilization of bottom sediment in rural black and odorous water bodies, avoids resource waste, provides a good environment for plant growth, and promotes vegetation growth and ecosystem restoration. It realizes the multiple values ​​of "solid waste resource utilization + vegetation growth carrier + ecological protection", and has the advantages of low cost, simple construction and significant ecological benefits. It can be applied to the ecological protection of river slopes or the construction of sunken green spaces in sponge cities. It also effectively solves the problems of high cost and resource waste of bottom sediment landfill or incineration.

[0020] 2. This application also improves the curing rate, permeability and support strength of the bottom sediment solidification support layer by adding oyster shell powder.

[0021] 3. The bottom surface of the bottom mud solidification support layer of this application is provided with inverted trapezoidal anchoring ribs to enhance the bonding force between the brick and the slope, prevent the brick from sliding on the slope, improve the stability of the ecological brick in the slope protection project, and also ensure the long-term reliability of the entire slope protection system.

[0022] 4. The bottom mud solidification support layer of this application is provided with protrusions and grooves that match the protrusions around its perimeter for horizontal interlocking between adjacent ecological bricks. This design allows adjacent ecological bricks to be tightly connected together to form an integral structure, which enhances the stability between ecological bricks, prevents the bricks from shifting or misaligning in the horizontal direction, and further improves the stability and reliability of the entire slope protection system. Attached Figure Description

[0023] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).

[0024] Figure 1 This is a schematic diagram of the structure of an ecological block made from the bottom sediment of a black and odorous water body in rural areas, provided in one embodiment of this application.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Substrate solidification support layer; 2. Vegetation carrier layer; 3. Coconut mesh protective layer; 4. Plant seed capsules. Detailed Implementation

[0027] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] In the description of this application: unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," etc., in this application are intended to distinguish the objects referred to and do not have any special meaning in terms of technical connotation (e.g., they should not be construed as an emphasis on importance or order). Expressions such as "including," "comprising," and "having" also mean "not limited to" (certain units, components, materials, steps, etc.).

[0029] The terms used in this application, such as "upper," "lower," "left," "right," and "middle," are generally used to indicate the general relative positional relationship for the purpose of intuitive understanding by referring to the accompanying drawings, and are not absolute limitations on the positional relationship in the actual product.

[0030] One embodiment of this application, such as Figure 1 As shown, an ecological block made from the resource utilization of bottom sediment in rural black and odorous water bodies includes bricks, which can be square, rectangular or hexagonal; the bricks include: a bottom sediment solidification support layer 1, a vegetation carrier layer 2 and a coconut net protective layer 3.

[0031] The bottom mud solidification support layer 1 has a groove in the middle, the vegetation carrier layer 2 is embedded in the groove, and the coconut net protective layer 3 covers the upper surface of the vegetation carrier layer 2. The upper surface of the coconut net protective layer 3 is flush with the top surface of the groove, so that the top surface of the brick is on the same plane.

[0032] The aforementioned bottom sediment solidification support layer 1 is made by mixing and stirring bottom sediment, oyster shell powder, crushed straw, and cementing materials, and then molding it to serve as the support layer for ecological slope protection blocks.

[0033] Preferably, the sediment solidification support layer 1 is formed by mixing bottom sediment, oyster shell powder, crushed straw, and cementing materials to create a support structure with sufficient strength and stability to withstand the weight of the vegetation carrier layer 2 and the coconut net protective layer 3. Specifically:

[0034] As the main filling material, the bottom sediment of the water body has a certain degree of viscosity and plasticity. After being mixed with other components, it forms a stable support layer that can support the weight of the vegetation carrier layer 2 and the coconut net protective layer 3. The main component of oyster shell powder is calcium carbonate. Through the addition of oyster shell powder, it reacts with heavy metal ions in the bottom sediment through surface adsorption and co-precipitation, which quickly and effectively solidifies the heavy metals in the bottom sediment. The solidification rate is high, which can reduce pollution to the surrounding environment. At the same time, due to the irregular shape of oyster shell particles, different pores are formed, which improves the permeability of the blocks. In addition, due to the hard texture of oyster shells, they can be used as aggregate for the blocks, replacing the crushed stone or sand in traditional blocks, enhancing the solidification effect of the bottom sediment and improving the strength of the support layer. The addition of crushed straw can improve the air permeability and water retention of the bottom sediment. At the same time, the fiber structure of straw can enhance the crack resistance of the bottom sediment and improve its overall stability and durability. The cementing material, as a curing agent, can make the bottom sediment and other components form a hard and stable solid, further ensuring the strength and stability of the support layer.

[0035] More preferably, the vegetation carrier layer 2 is a uniform mixture of bottom mud dehydrated to a moisture content of less than 40%, lightweight ceramsite, straw powder, and humus.

[0036] Vegetation carrier layer 2 is a planting substrate with good water retention and aeration, formed by mixing dehydrated bottom mud, lightweight expanded clay pebbles, straw powder, and humus. This provides a stable environment and necessary nutrients for plant growth, promoting healthy plant development. Specifically:

[0037] The bottom mud layer, as the main substrate material, is high in organic matter and contains a complete range of elements such as nitrogen, phosphorus, and potassium. It has good water retention and aeration properties, providing a stable growth environment for plant roots while also providing necessary nutrients. The addition of lightweight expanded clay pebbles improves the aeration and drainage of the vegetation carrier layer 2, providing good growth conditions for plant roots, preventing waterlogging and root rot, and reducing the overall weight of the vegetation carrier layer 2, facilitating construction and transportation. Straw powder increases the organic matter content of the vegetation carrier layer 2, releasing nutrients during decomposition and promoting plant growth. The addition of humus provides abundant nutrients, improves the fertility and water retention of the vegetation carrier layer 2, and contributes to plant growth and development.

[0038] In a further preferred embodiment, the coconut net protective layer 3 is a mesh structure made of coconut fiber. By laying the coconut net protective layer 3 on the surface of the vegetation carrier layer 2, soil and water loss can be reduced.

[0039] The coconut fiber protective layer 3 has high tensile strength and low elongation, which can effectively resist water erosion and reduce soil erosion; it increases the roughness of the slope, reduces the water flow velocity, and turns the slope runoff into a diffuse flow, reducing slope erosion; it can effectively protect seeds from being washed away and ensure that plants can grow in a suitable environment. At the same time, the coconut fiber can absorb some water and intercept some rainwater, increasing the slope's water retention capacity and providing the necessary water for plant growth.

[0040] The synergistic effect between the components in the bottom mud solidification support layer 1 and the vegetation carrier layer 2, as well as the setting of the coconut net protective layer 3, ensures the stability and ecological function of the ecological bricks in the slope protection project, enabling them to effectively prevent soil erosion, while providing a good environment for plant growth, promoting vegetation growth and ecosystem restoration.

[0041] Preferably, multiple plant seed capsules 4 are also embedded at intervals inside the vegetation carrier layer 2.

[0042] Preferably, the bottom surface of the bottom mud solidification support layer 1 is provided with anchoring ribs, which are strip-shaped or inverted trapezoidal in shape, to enhance the bonding force between the brick and the slope and prevent the brick from sliding on the slope.

[0043] Preferably, the bottom mud solidification support layer 1 is provided with bosses and grooves that fit the bosses around its perimeter for horizontal interlocking between adjacent ecological bricks. The bosses and grooves can be designed in a shape similar to a mortise and tenon structure to further improve the reliability of the connection between them.

[0044] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

Claims

1. An ecological block made from the bottom sediment of black and odorous water bodies in rural areas, comprising a brick body, characterized in that, The brick body includes: a bottom mud solidification support layer, a vegetation carrier layer, and a coconut net protective layer; The bottom mud solidification support layer has a groove in the middle, the vegetation carrier layer is embedded in the groove, the coconut net protective layer covers the upper surface of the vegetation carrier layer, and the upper surface of the coconut net protective layer is flush with the top surface of the groove, so that the top surface of the brick is on the same plane.

2. The ecological block made from the bottom sediment of black and odorous water bodies in rural areas according to claim 1, characterized in that, The coconut mesh protective layer is a mesh structure made of coconut fibers.

3. The ecological block made from the bottom sediment of black and odorous water bodies in rural areas according to claim 1, characterized in that, Plant seed capsules are distributed at intervals inside the vegetation carrier layer.

4. The ecological block made from the bottom sediment of black and odorous water bodies in rural areas according to claim 1, characterized in that, The bricks are square, rectangular, or hexagonal.

5. The ecological block made from the bottom sediment of black and odorous water bodies in rural areas according to claim 4, characterized in that, The bottom surface of the bottom mud solidification support layer is provided with anchoring ribs to enhance the bonding force between the bricks and the slope and prevent the bricks from sliding on the slope. The bottom mud solidification support layer is provided with protrusions and grooves that match the protrusions around its perimeter for horizontal interlocking between adjacent ecological bricks.

6. The ecological block made from the bottom sediment of black and odorous water bodies in rural areas according to claim 1, characterized in that, The thickness of the bottom mud solidification support layer is 100mm, the thickness of the vegetation carrier layer is 200-300mm, and the thickness of the coconut net protective layer is 10mm.

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