Artificial ecological wetland system based on river sewage treatment

Abstract

The utility model discloses an artificial ecological wetland system based on river sewage treatment, which comprises a sewage treatment station and an ecological purification zone, the sewage treatment station comprises a sedimentation tank, an aeration tank and a reaction tank which are communicated in sequence, the reaction tank is provided with a medicament feeding pipe, the reaction tank is communicated with the ecological purification zone through a drainage pipe, and the ecological purification zone is communicated with the aeration tank. The ecological purification zone comprises a first plant zone and a second plant zone, a separation wall is arranged between the first plant zone and the second plant zone, the bottom of the first plant zone and the bottom of the second plant zone below the separation wall are communicated, and a drainage pipe of the reaction tank is communicated with the first plant zone. According to the artificial ecological wetland system based on river sewage treatment, the sewage treatment station is combined with the ecological purification zone, so that the operation cost is reduced, and meanwhile, the standard reaching rate of effluent is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an artificial ecological wetland system based on river sewage treatment. Background Art

[0002] As people pay more and more attention to water resource protection and management, the requirements for river sewage treatment are getting higher. River sewage treatment plants can accurately control sewage purification parameters to ensure that sewage purification meets discharge requirements, but as purification requirements become higher and higher, the operating costs of sewage treatment are also gradually increasing. Artificial ecological wetlands have the advantages of construction and operation costs, but the operating parameters are not accurate, and it is easy for the effluent to fail to meet the design requirements. Therefore, a treatment system with low operating costs and high effluent compliance rate is urgently needed. Utility Model Content

[0003] In view of the above-mentioned prior art, the utility model provides an artificial ecological wetland system based on river sewage treatment, which reduces the operating cost and improves the effluent compliance rate by combining a sewage treatment station with an ecological purification belt.

[0004] To achieve the above purpose, the technical solution of the embodiment of the utility model is implemented as follows:

[0005] An artificial ecological wetland system based on river sewage treatment includes a sewage treatment station and an ecological purification belt. The sewage treatment station includes a sedimentation tank, an aeration tank and a reaction tank which are connected in sequence. The reaction tank is provided with a drug delivery pipe. The reaction tank is connected to the ecological purification belt through a drainage pipe. The ecological purification belt includes a first plant belt and a second plant belt. An isolation wall is provided between the first plant belt and the second plant belt. The bottoms of the first plant belt and the second plant belt under the isolation wall are connected. The drainage pipe of the reaction tank is connected to the first plant belt.

[0006] Furthermore, the second plant belt is provided with a volcanic rock layer, an anthracite layer, a gravel layer and a fine sand layer in sequence from bottom to top, and a plant layer is provided above the fine sand layer.

[0007] Furthermore, the first plant belt includes a concrete frame, the concrete frame is provided with a plurality of layers of first through holes, a volcanic rock layer is provided above the concrete frame from bottom to top, a vegetation layer is provided above the volcanic rock layer, a volcanic rock layer, an anthracite layer and a gravel layer are provided below the concrete frame from top to bottom, the concrete frame is spaced a preset distance from the volcanic rock, the bottom of the sedimentation tank is connected to a sludge pump through a first sludge conveying pipe, the sludge pump is connected between the concrete frame and the volcanic rock through a second sludge conveying pipe, and the drainage pipe is connected to the bottom of the first plant belt.

[0008] Furthermore, support piers are provided on both sides of the bottom of the isolation wall.

[0009] Furthermore, a boss is provided on one side of the isolation wall, and the boss is provided with a second through hole extending through the bottom of the isolation wall, and the second through hole is provided with a plurality of isolation square tubes that can be inserted.

[0010] Furthermore, the second through hole is provided with a plurality of plant cages, and water purification plants are arranged in the plant cages.

[0011] Furthermore, the plant cage is provided with a hanging rope, the boss is provided with a plurality of hanging nails, and the hanging rope is hung on the hanging nails.

[0012] The beneficial effects of the utility model are:

[0013] The utility model uses a sewage treatment station to carry out preliminary treatment on river sewage, and then uses an ecological purification belt for secondary treatment, which can reduce the sewage treatment station's investment in sewage treatment and reduce the operating costs of the treatment system. Since the sewage treatment station has already carried out primary treatment on the sewage, when the secondary treatment is carried out in the ecological purification belt, the discharged water has a high rate of meeting the standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of an artificial ecological wetland system based on river sewage treatment in Example 1 of the present application;

[0015] Figure 2 This is a schematic diagram of the structure of the ecological purification belt in Example 2 of the present application;

[0016] Figure 3 This is a schematic diagram of the structure of the isolation wall and the isolation square tube in Example 2 of the present application;

[0017] Description of Figure Numbers:

[0018] 1 sewage treatment station, 2 ecological purification zone, 3 sedimentation tank, 4 aeration tank, 5 reaction tank, 6 drug delivery pipe, 7 drainage pipe, 8 first plant belt, 9 second plant belt, 10 isolation wall, 11 volcanic stone layer, 12 anthracite layer, 13 gravel layer, 14 fine sand layer, 15 plant layer, 16 concrete frame, 17 first through hole, 18 supporting pier, 19 boss, 20 second through hole, 21 isolation square tube, 22 plant cage, 23 water purification plant, 24 lifting rope, 25 hanging nail, 26 sludge pump, 27 first sludge conveying pipe, 28 second sludge conveying pipe. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the utility model. The terms used herein in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. In the following description, the expression "some embodiments" is involved, which describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0020] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0021] Example 1

[0022] Please refer to the attached Figure 1The present application provides an artificial ecological wetland system based on river sewage treatment, including a sewage treatment station 1 and an ecological purification belt 2. After the river sewage is treated by the sewage treatment station 1, it then enters the ecological purification belt 2 for treatment. The sewage treatment station 1 includes a sedimentation tank 3, an aeration tank 4 and a reaction tank 5 which are connected in sequence. After the river sewage enters the sedimentation tank 3, particulate matter is precipitated, and then it is treated in the aeration tank 4 and the reaction tank 5. The reaction tank 5 is provided with a drug delivery pipe 6. The water treated by adding the drug in the reaction tank 5 is discharged into the ecological purification belt 2. The reaction tank 5 is connected to the ecological purification belt 2 through a drainage pipe 7. The water body is connected, and the water body is discharged into the ecological purification belt 2 through the drainage. The ecological purification belt 2 includes a first plant belt 8 and a second plant belt 9. A separation wall 10 is provided between the first plant belt 8 and the second plant belt 9. The separation wall 10 separates the water body above the first plant belt 8 and the second plant belt 9. The bottom of the first plant belt 8 and the second plant belt 9 below the separation wall 10 are connected, and the water body flows from the bottom of the first plant belt 8 to the second plant belt 9. The drainage pipe 7 of the reaction tank 5 is connected with the first plant belt 8. The discharged water body is purified after passing through the first plant belt 8 and the second plant belt 9. The purified water body can be discharged into the river. After the sewage treatment station 1 performs preliminary treatment on the river sewage, the ecological purification belt 2 is used for secondary treatment. It can reduce the investment of the sewage treatment station 1 in sewage treatment and reduce the operating cost of the treatment system. Since the sewage treatment station 1 has already treated the sewage once, when the ecological purification belt 2 is subjected to secondary treatment, the discharged water body has a high water compliance rate.

[0023] Specifically, the second plant belt 9 is provided with a volcanic rock layer 11, anthracite layer 12, gravel layer 13 and fine sand layer 14 in order from bottom to top, and a plant layer 15 is provided above the fine sand layer. When the water passes through the volcanic rock layer 11, the anthracite layer 12 and the gravel layer 13, it is adsorbed and filtered. The plant layer 15 is an aquatic water purification plant 23. The fine sand layer is conducive to the root attachment of the aquatic water purification plant 23, and the aquatic water purification plant 23 is used to purify the water.

[0024] Specifically, the first plant belt 8 includes a concrete frame 16, the concrete frame 16 is provided with a plurality of first through holes 17, a volcanic rock layer 11 is sequentially arranged above the concrete frame 16 from bottom to top, a vegetation layer is arranged above the volcanic rock layer 11, a volcanic rock layer 11, an anthracite layer 12 and a gravel layer 13 are sequentially arranged below the concrete frame 16 from top to bottom, the concrete frame 16 is spaced from the volcanic rock by a preset distance, the bottom of the sedimentation tank 3 is connected to a sludge pump 26 through a first sludge conveying pipe 27, the sludge pump 26 is connected between the concrete frame and the volcanic rock through a second sludge conveying pipe 28, and the drainage pipe 7 is connected to the bottom of the first plant belt 8. Water bodies and plant roots can pass through the first through holes 17, and the plant roots can enter the bottom after passing through the first through holes 17, and absorb organic matter and inorganic salts in the sludge by using the root base of the plant, and the aquatic plant can be selected as water hyacinth. The concrete frame 16 supports the volcanic rock layer 11, and the porous structure of the volcanic rock layer 11 can play an adsorption role. The volcanic rock layer 11, the anthracite layer 12 and the gravel layer 13 below the concrete frame 16 purify the water body and prevent the sludge from entering the second plant zone 9. The sludge in the sedimentation tank 3 is pumped into the first plant zone 8, which can provide nutrients for aquatic plants. At the same time, the sludge can be transferred to ensure the stable use of the sedimentation tank 3. The water body can be treated in situ without generating excess waste, and the purification effect of the water body is good.

[0025] Specifically, support piers 18 are provided on both sides of the bottom of the isolation wall 10. The isolation wall 10 is erected on the support piers 18, and channels are formed between the support piers 18, and water can flow through the channels at the bottom.

[0026] Example 2

[0027] Please refer to the attached Figures 2-3 The difference between this embodiment and embodiment 1 is that a boss 19 is provided on one side of the isolation wall 10, and the boss 19 is provided with a second through hole 20 that runs through the bottom of the isolation wall 10, and the second through hole 20 is provided with a plurality of isolation square tubes 21 that can be inserted. The water flow at the bottom is regulated by inserting square tubes. When the number of inserted isolation square tubes 21 is large, the water flow speed decreases, and the water level retained in the first plant belt 8 increases. When the number of inserted isolation square tubes 21 is small, the water flow speed increases, and the water level retained in the first plant belt 8 decreases, thereby regulating the water level of the first index belt to prevent the water level from being too low and affecting the growth of water hyacinth. The boss 19 prevents the water flow from flowing directly from the second through hole 20 to the upper part of the second plant belt 9.

[0028] Specifically, the second through hole 20 is provided with a plurality of plant cages 22, and water purification plants 23 are provided in the plant cages 22. The water purification plants 23 can purify the water in the second through hole 20. When the square tube is inserted, the plant cages 22 at the corresponding positions are taken out, and the plant cages 22 can be placed in the remaining positions where the square tube is not inserted.

[0029] Specifically, the plant cage 22 is provided with a hanging rope 24, and the boss 19 is provided with a plurality of hanging nails 25, and the hanging rope 24 is hung on the hanging nails 25. It is convenient to take and put the plant cage 22.

[0030] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. The protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An artificial ecological wetland system based on river sewage treatment, characterized in that: It includes a sewage treatment station and an ecological purification zone. The sewage treatment station includes a sedimentation tank, an aeration tank and a reaction tank which are connected in sequence. The reaction tank is provided with a drug delivery pipe. The reaction tank is connected with the ecological purification zone through a drainage pipe. The ecological purification zone includes a first plant zone and a second plant zone. An isolation wall is provided between the first plant zone and the second plant zone. The bottoms of the first plant zone and the second plant zone under the isolation wall are connected. The drainage pipe of the reaction tank is connected with the first plant zone.

2. The artificial ecological wetland system based on river sewage treatment according to claim 1 is characterized in that: The second plant zone is provided with a volcanic rock layer, an anthracite layer, a gravel layer and a fine sand layer in sequence from bottom to top, and a plant layer is provided above the fine sand layer.

3. The artificial ecological wetland system based on river sewage treatment according to claim 2 is characterized in that: The first plant belt includes a concrete frame, the concrete frame is provided with a plurality of layers of first through holes, a volcanic stone layer is arranged from bottom to top above the concrete frame, a vegetation layer is arranged above the volcanic stone layer, a volcanic stone layer, an anthracite layer and a gravel layer are arranged from top to bottom below the concrete frame, the concrete frame is spaced a preset distance from the volcanic stone, the bottom of the sedimentation tank is connected to a sludge pump through a first sludge conveying pipe, the sludge pump is connected to between the concrete frame and the volcanic stone through a second sludge conveying pipe, and the drainage pipe is connected to the bottom of the first plant belt.

4. The artificial ecological wetland system based on river sewage treatment according to claim 1 is characterized in that: Support piers are arranged on both sides of the bottom of the isolation wall.

5. The artificial ecological wetland system based on river sewage treatment according to claim 1 is characterized in that: A boss is provided on one side of the isolation wall, and the boss is provided with a second through hole that penetrates to the bottom of the isolation wall, and the second through hole is provided with a plurality of isolation square tubes that can be inserted.

6. The artificial ecological wetland system based on river sewage treatment according to claim 5 is characterized in that: The second through holes are provided with a plurality of plant cages, and water purification plants are arranged in the plant cages.

7. The artificial ecological wetland system based on river sewage treatment according to claim 6 is characterized in that: The plant cage is provided with a hanging rope, the boss is provided with a plurality of hanging nails, and the hanging rope is hung on the hanging nails.

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