Three-dimensional artificial wetland system

Abstract

The utility model discloses a three-dimensional artificial wetland system which comprises a water inlet pipeline, a three-dimensional artificial wetland unit and a water drainage pipeline, the three-dimensional artificial wetland unit comprises a plurality of layers of planting grooves which are sequentially distributed from bottom to top, and a water guide pipe is arranged at the bottom of each layer of planting groove from the second layer of planting groove; the upper port of each water guide pipe is connected with the bottom of the planting groove of the corresponding layer, and the water guide pipes are distributed in an up-down staggered manner; the water inlet pipeline comprises a water inlet main pipe and a plurality of water distribution pipelines, each water distribution pipeline is positioned right above the corresponding three-dimensional artificial wetland unit, each water distribution pipeline comprises a water distribution main pipe and a plurality of water distribution branch pipes, one end of the water distribution main pipe is connected with the water inlet main pipe, and one end of each water distribution branch pipe is connected with the water distribution main pipe; the drainage pipeline comprises at least one drainage main pipe, a drainage port is formed in the bottom of the planting groove in the lowermost layer of each three-dimensional artificial wetland unit, and each drainage port is connected with the corresponding drainage main pipe. According to the system, the arrangement mode of the constructed wetland is changed, and the occupied area of the constructed wetland is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tail water sewage treatment, and specifically to a three-dimensional artificial wetland system, which is suitable for purifying various water qualities such as rural decentralized domestic sewage, aquaculture tail water purification and sewage treatment plant tail water purification, so as to achieve long-term and efficient operation of artificial wetlands and significantly improve the water purification efficiency. Background Art

[0002] With the increasing proportion of urban domestic sewage collection and treatment, rural decentralized domestic sewage, rainwater runoff surface pollution, etc. have gradually become the main sources of pollution load for environmental problems, and artificial wetlands are the best measure to solve small-flow domestic sewage.

[0003] The artificial wetland sewage treatment system is an ecological engineering system that includes soil, vegetation, and microorganisms. It uses the natural purification ability to treat sewage. It has the advantages of low investment, low energy consumption, simple management, stable process, good treatment effect, and no secondary pollution. It has gradually been accepted by countries around the world. The working principle of artificial wetlands is mainly to utilize the triple synergistic effects of physics, chemistry, and biology in natural ecosystems to achieve efficient purification of sewage through filtration, adsorption, co-precipitation, ion exchange, plant adsorption, and microbial decomposition.

[0004] At present, artificial wetlands face many problems such as large land area and difficulty in managing wetland plant diseases and insect pests. In addition, artificial wetlands have a single benefit and low economic benefits. Therefore, the development of three-dimensional artificial wetlands with advantages such as high purification efficiency, relatively small land and certain economic benefits has become a common demand for the future development of artificial wetlands. Summary of the invention

[0005] Based on the above-mentioned prior art, the utility model provides a three-dimensional artificial wetland system, which changes the arrangement pattern of artificial wetlands and the planting method of wetland plants, greatly reducing the area occupied by artificial wetlands. In addition, the wetland plant types can also be replaced with aquatic vegetables, which has certain economic value while treating sewage.

[0006] The technical solution adopted to achieve the above-mentioned purpose of the utility model is:

[0007] A three-dimensional artificial wetland system includes a water inlet pipeline, a three-dimensional artificial wetland unit and a drainage pipeline, wherein the three-dimensional artificial wetland unit has a plurality of units;

[0008] The three-dimensional artificial wetland unit includes a support frame and multiple layers of planting troughs arranged from bottom to top. Each planting trough is installed on the support frame. The bottom of the second layer planting trough, the third layer planting trough, ... the top layer planting trough is provided with a vertically arranged water pipe. The upper end of each water pipe is respectively connected to one side of the bottom of the planting trough of the corresponding layer, and the water pipes are staggered up and down.

[0009] The water inlet pipeline includes a water inlet main pipe and a plurality of water distribution pipes. The number of the water distribution pipes is the same as the number of the three-dimensional artificial wetland units. Each water distribution pipe is located directly above the corresponding three-dimensional artificial wetland unit. The water distribution pipe includes a water distribution main pipe and a plurality of dispersed water distribution branches. One end of the water distribution main pipe is connected to the water inlet main pipe, and one end of each water distribution branch pipe is connected to the water distribution main pipe. The water distribution branch pipe is provided with a plurality of evenly distributed water distribution holes.

[0010] The drainage pipeline includes at least one drainage main pipe. The bottom of the lowest planting trough of each three-dimensional artificial wetland unit is provided with a drainage outlet, and each drainage outlet is connected to the corresponding drainage main pipe.

[0011] The planting trough is square in shape, and the support frame includes four support columns, which are distributed in a square shape, and the four corners of each planting trough are distributed and fixed on the four support columns.

[0012] The three-dimensional artificial wetland units are distributed in a matrix of two rows and multiple columns.

[0013] The two rows of three-dimensional artificial wetland units are symmetrically distributed on both sides of the water inlet main pipe, and the water distribution pipelines are distributed in a matrix of two rows and multiple columns. In each water distribution pipeline, the water distribution branch pipes are distributed in a matrix of multiple rows and two columns. The two columns of water distribution branch pipes are symmetrically distributed on both sides of the water distribution main pipe, and the straight line where each column of water distribution branch pipes is located is parallel to the length direction of the planting trough.

[0014] There are two drainage main pipes, which are symmetrically distributed and arranged outside two rows of three-dimensional artificial wetland units. Each drainage outlet is arranged outside the bottom planting trough of the corresponding three-dimensional artificial wetland unit.

[0015] A planting soil layer, a volcanic rock layer and a zeolite layer are laid in sequence from top to bottom in the planting trough, and wetland plants are planted on the planting soil layer.

[0016] The wetland plants are aquatic vegetables.

[0017] The particle size of the zeolite particles is 10-15 cm, and the particle size of the volcanic rock particles is 15-20 cm.

[0018] Compared with the prior art, the beneficial effects and advantages of the utility model are:

[0019] 1. The artificial wetland units in this system adopt modular design. The number of artificial wetland units can be designed according to the amount of sewage, and each artificial wetland unit operates in parallel.

[0020] 2. The planting troughs of the artificial wetland unit of the system are distributed in multiple layers vertically, which makes the system occupy a small area and can be equipped with a greenhouse sun room to ensure that it can be put into operation all year round and improve the utilization rate of the system.

[0021] 3. The system can select economically profitable aquatic vegetables for planting, which has certain economic value and conforms to the concept of green ecological agriculture.

[0022] 4. The system is suitable for various types of water purification projects such as rural decentralized domestic sewage, aquaculture tailwater purification and sewage treatment plant tailwater purification, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of a three-dimensional artificial wetland system.

[0024] Figure 2 Schematic diagram of a three-dimensional artificial wetland unit.

[0025] Among them, 1- planting trough, 2- supporting column, 3- planting soil layer, 4- volcanic rock layer, 5- zeolite layer, 6- aquatic vegetables, 7- water pipe, 8- water inlet main pipe, 9- water distribution main pipe, 10- water distribution branch pipe, 11- drainage main pipe, 12- drainage outlet. DETAILED DESCRIPTION

[0026] The utility model is described in detail below in conjunction with the accompanying drawings.

[0027] The schematic diagram of the three-dimensional artificial wetland system provided in this embodiment is as follows Figure 1 As shown, it includes a water inlet pipeline, a three-dimensional artificial wetland unit and a drainage pipeline.

[0028] There are multiple three-dimensional artificial wetland units, which are arranged in a matrix of two rows and multiple columns. Figure 2 As shown, the three-dimensional artificial wetland unit includes a support frame and multiple layers of planting troughs 1 arranged from bottom to top, and the planting troughs 1 are square. The support frame includes four support columns 2, which are distributed in a square shape, and the four corners of each planting trough 1 are distributed and fixed on the four support columns 2.

[0029] A planting soil layer 3, a volcanic rock layer 4 and a zeolite layer 5 are laid in the planting trough from top to bottom. The particle sizes of the zeolite particles and the volcanic rock particles can be adjusted according to specific actual needs. Generally speaking, the particle size of the zeolite particles is 10-15 cm, and the particle size of the volcanic rock particles is 15-20 cm. Wetland plants are planted on the planting soil layer 3. The wetland plants can be water hyacinth and water hyacinth with strong decontamination ability, or the economical aquatic vegetables 6 in this embodiment, such as water celery and water spinach, etc.

[0030] The bottom of the second layer planting trough, the third layer planting trough, ... the top layer planting trough 1 is provided with a vertically arranged water pipe 7, and the water pipe 7 is staggered up and down. Through the staggered water pipes 7, the sewage is diverted up and down in the three-dimensional artificial wetland unit. The upper end of each water pipe 7 is respectively connected to the middle of the width direction edge of the bottom of the planting trough 1 of the corresponding layer. In order to prevent filler seepage, a fine grid is arranged at the entrance of the water pipe.

[0031] like Figure 2 As shown, the water inlet pipeline includes a water inlet main pipe 8 and a plurality of water distribution pipes, and two rows of three-dimensional artificial wetland units are symmetrically distributed on both sides of the water inlet main pipe 8. The number of water distribution pipes is the same as the number of three-dimensional artificial wetland units, and the water distribution pipes are distributed in a matrix of two rows and multiple columns, and each water distribution pipe is located directly above the corresponding three-dimensional artificial wetland unit.

[0032] The water distribution pipeline includes a water distribution main pipe 9 and a plurality of water distribution branch pipes 10. One end of the water distribution main pipe 9 is connected to the water inlet branch pipe 10, and the other end of the water distribution main pipe 9 is sealed. The water distribution branch pipes 10 are distributed in a matrix of multiple rows and two columns. The two columns of water distribution branch pipes 10 are symmetrically distributed on both sides of the water distribution main pipe 9. The straight line where each column of water distribution branch pipes 10 is located is parallel to the length direction of the planting trough 1. One end of each water distribution branch pipe 10 is connected to the water distribution main pipe 9, and the other end of each water distribution branch pipe 10 is sealed. The water distribution branch pipe 10 is provided with a plurality of evenly distributed water distribution holes. The water distribution pipeline can cover the upper space of the entire three-dimensional artificial wetland unit, thereby improving the water inlet efficiency of the three-dimensional artificial wetland unit.

[0033] like Figure 2 As shown, the drainage pipeline includes two drainage main pipes 11, which are symmetrically distributed and are distributed outside two rows of three-dimensional artificial wetland units. A drainage port 12 is provided at the bottom of the side wall of the lowest planting trough of each three-dimensional artificial wetland unit. In order to prevent filler from seeping, a fine grid is arranged at the entrance of the drainage port 12. The drainage port 12 of each three-dimensional artificial wetland unit faces the drainage main pipe 11 closer to it, and the drainage port 12 of each three-dimensional artificial wetland unit is connected to the drainage main pipe 11 closer to it.

[0034] For working conditions with large sewage flow, more three-dimensional artificial wetland units can be set up, and water can be distributed from the water inlet main to the water distribution main on each three-dimensional artificial wetland unit to form a system with multiple three-dimensional artificial wetland units running in parallel.

Claims

1. A three-dimensional artificial wetland system, characterized in that: It includes water inlet pipeline, three-dimensional artificial wetland unit and drainage pipeline, and there are multiple three-dimensional artificial wetland units; The three-dimensional artificial wetland unit includes a support frame and multiple layers of planting troughs arranged from bottom to top. Each planting trough is installed on the support frame. The bottom of the second layer planting trough, the third layer planting trough, ... the top layer planting trough is provided with a vertically arranged water pipe. The upper end of each water pipe is respectively connected to one side of the bottom of the planting trough of the corresponding layer, and the water pipes are staggered up and down. The water inlet pipeline includes a water inlet main pipe and a plurality of water distribution pipes. The number of the water distribution pipes is the same as the number of the three-dimensional artificial wetland units. Each water distribution pipe is located directly above the corresponding three-dimensional artificial wetland unit. The water distribution pipe includes a water distribution main pipe and a plurality of dispersed water distribution branches. One end of the water distribution main pipe is connected to the water inlet main pipe, and one end of each water distribution branch pipe is connected to the water distribution main pipe. The water distribution branch pipe is provided with a plurality of evenly distributed water distribution holes. The drainage pipeline includes at least one drainage main pipe. The bottom of the lowest planting trough of each three-dimensional artificial wetland unit is provided with a drainage outlet, and each drainage outlet is connected to the corresponding drainage main pipe.

2. The three-dimensional artificial wetland system according to claim 1, characterized in that: The planting trough is square in shape, and the support frame includes four support columns, which are distributed in a square shape, and the four corners of each planting trough are distributed and fixed on the four support columns.

3. The three-dimensional artificial wetland system according to claim 2, characterized in that: The three-dimensional artificial wetland units are distributed in a matrix of two rows and multiple columns.

4. The three-dimensional artificial wetland system according to claim 3 is characterized in that: The two rows of three-dimensional artificial wetland units are symmetrically distributed on both sides of the water inlet main pipe, and the water distribution pipelines are distributed in a matrix of two rows and multiple columns. In each water distribution pipeline, the water distribution branch pipes are distributed in a matrix of multiple rows and two columns. The two columns of water distribution branch pipes are symmetrically distributed on both sides of the water distribution main pipe, and the straight line where each column of water distribution branch pipes is located is parallel to the length direction of the planting trough.

5. The three-dimensional artificial wetland system according to claim 3 is characterized in that: There are two drainage main pipes, which are symmetrically distributed and arranged outside two rows of three-dimensional artificial wetland units. Each drainage outlet is arranged outside the bottom planting trough of the corresponding three-dimensional artificial wetland unit.

6. The three-dimensional artificial wetland system according to claim 1, characterized in that: A planting soil layer, a volcanic rock layer and a zeolite layer are laid in sequence from top to bottom in the planting trough, and wetland plants are planted on the planting soil layer.

7. The three-dimensional artificial wetland system according to claim 6, characterized in that: The wetland plants are aquatic vegetables.

8. The three-dimensional artificial wetland system according to claim 6, characterized in that: The particle size of the zeolite particles in the zeolite layer is 10-15 cm, and the particle size of the volcanic rock particles is 15-20 cm.

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