CN209740821U - Composite artificial wetland system for rural domestic sewage treatment - Google Patents
Composite artificial wetland system for rural domestic sewage treatment Download PDFInfo
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- CN209740821U CN209740821U CN201920088989.4U CN201920088989U CN209740821U CN 209740821 U CN209740821 U CN 209740821U CN 201920088989 U CN201920088989 U CN 201920088989U CN 209740821 U CN209740821 U CN 209740821U
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Abstract
The utility model discloses a composite artificial wetland system for rural domestic sewage treatment, which belongs to the technical field of domestic sewage treatment and comprises a water inlet channel, an anaerobic baffling adjusting tank, a vertical flow artificial wetland tank, a water receiving channel and a water outlet well which are connected in sequence and integrally constructed; a slag separation net is obliquely arranged in the water inlet channel; the bottom of the anaerobic baffling adjusting tank is provided with a bucket-shaped structure; a slag separation plate is arranged between the anaerobic baffling adjusting tank and the vertical flow artificial wetland tank; and the sewage purified by the vertical flow artificial wetland pool is converged into a water outlet well through the water collecting channel. The composite artificial wetland system has the advantages of simple process, compact structure, strong impact load resistance, good treatment effect, no need of equipment operation and maintenance, less daily cleaning work and low management cost, and can effectively solve the treatment problem of rural domestic sewage.
Description
Technical Field
The utility model belongs to the technical field of domestic sewage treatment, concretely relates to compound constructed wetland system for rural domestic sewage administers.
Background
rural domestic sewage is discharged to peripheral water bodies randomly under the condition of not being effectively treated, so that the environmental sanitation condition is deteriorated, and the peripheral surface water, underground water and soil are seriously polluted, and further the rural drinking water safety is threatened. In order to accelerate the construction of beautiful villages, promote the sustainable development of the villages and meet the demand of farmers on good life, a feasible treatment technology is required to be adopted for the treatment of rural domestic sewage.
The rural sewage treatment technology in China needs to meet the requirements of low system maintenance, strong load impact resistance, low energy consumption and the like. When the existing artificial wetland system is used for rural domestic sewage treatment, the phenomena of unsatisfactory anaerobic pretreatment effect, weak impact load resistance of the system, unstable effluent quality and the like exist mostly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a rural domestic sewage treatment system to the characteristics of the rural sewage of china, compact structure, the load capacity that shocks resistance is strong, the operation maintenance is simple, and biochemical effect is good, and the treatment effect is good, is applicable to the rural area that the relief has certain discrepancy in elevation, especially uses in mountain area rural area.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The utility model provides a composite artificial wetland system for rural domestic sewage treatment, which is characterized by comprising an inlet channel, an anaerobic baffling adjusting tank, a vertical flow artificial wetland tank, a water receiving channel and an outlet well which are connected in sequence and integrally constructed; a slag separation net is obliquely arranged in the water inlet channel; the bottom of the anaerobic baffling adjusting tank is provided with a bucket-shaped structure; the included angle between the side wall of the bucket-shaped structure and the horizontal plane is 30-60 degrees, and a slag separation plate is arranged between the anaerobic baffling regulating tank and the vertical flow artificial wetland tank; and the sewage purified by the vertical flow artificial wetland pool is converged into a water outlet well through the water collecting channel.
Furthermore, a water outlet pipe is arranged in the water outlet well, and the water outlet pipe adopts a form that a movable elbow is connected with a straight pipe.
Furthermore, wetland plants, a substrate layer, a perforated water distribution pipe, a perforated water collection pipe and an oxygen-increasing vent pipe are arranged in the vertical flow artificial wetland pool; wherein the substrate layer is uniformly filled in the vertical flow artificial wetland pool; the perforated water distribution pipe and the perforated water collecting pipe are respectively positioned at the top and the bottom of the matrix layer, and the perforated water collecting pipes are arranged in a shape like a Chinese character 'tian'; the aeration pipe vertically penetrates through the substrate layer and is communicated with the perforated water collecting pipe, a plurality of air holes are annularly arranged on each aeration pipe in a layered mode, and a ventilation cap is arranged at the top of each aeration pipe.
The utility model has the advantages that:
1. The elastic filler filled in the anaerobic baffling regulation tank can intercept part of suspended sludge to reduce sludge loss on one hand, and can intercept suspended matters in the inlet water on the other hand; the bucket-shaped structure at the bottom of the anaerobic baffling adjusting tank is beneficial to the accumulation of solid substances; is suitable for treating rural domestic sewage with high SS (suspended solid) content, and has better impact load resistance.
2. The anaerobic baffling adjusting tank can effectively improve the water quality of inlet water of the constructed wetland system, reduce the wetland treatment load, has compact structure, greatly reduces the occupied area of the wetland, does not need to be provided with a sedimentation tank separately, and has stable water quality of outlet water and high sewage treatment efficiency.
3. A plurality of dispersedly distributed oxygen-increasing vent pipes in the vertical flow artificial wetland can effectively improve the oxygenation condition of the wetland and improve the pollutant removal efficiency; in addition, the reinforced phosphorus removal filler layer filled in the wetland can ensure that the total phosphorus is discharged after reaching the standard.
4. The water outlet pipe in the water outlet well adopts a rotatable elbow to connect the straight pipe, and the wetland water level is regulated and controlled by adjusting the rotation angle of the elbow so as to meet the requirements of wetland plants on the water level in different growth periods.
5. The whole system operates without equipment operation and maintenance, has less daily cleaning work and low management cost, accords with the characteristics of discontinuous sewage discharge and large water fluctuation in the current rural areas, and is suitable for popularization and application in rural areas, mountain areas and other areas.
drawings
fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a top view of the water outlet structure of the present invention.
In the figure, 1 is a water inlet pipe, 2 is a water inlet channel, 3 is a slag separation net, 4 is elastic filler, 5 is a first reaction chamber, 6 is a baffle plate, 7 is an anaerobic baffling adjusting tank, 8 is a partition plate, 9 is a second reaction chamber, 10 is a slag separation plate, 11 is a ventilation cap, 12 is an oxygen-increasing ventilation pipe, 13 is a vertical-flow artificial wetland tank, 14 is a perforated water distribution pipe, 15 is a perforated water collection pipe, 16 is a partition membrane, 17 is a matrix layer, 18 is wetland plants, 19 is a water outlet well, 20 is a water outlet pipe, 21 is a movable elbow, 22 is a water collection channel, and 23 is a perforated permeable wall.
Detailed Description
The utility model provides a compound constructed wetland system for rural domestic sewage administers, the following detailed description that combines with the figure and concrete embodiment is as follows:
The utility model provides a compound constructed wetland system for rural domestic sewage administers, its overall structure sketch map is shown in figure 1. The artificial wetland system comprises a water inlet channel 2, an anaerobic baffling adjusting tank 7, a vertical flow artificial wetland tank 13, a water collecting channel 22 and a water outlet well 19 which are sequentially connected and integrally constructed along the sewage flow direction; a slag separation net 3 is obliquely arranged in the water inlet channel 2; the bottom of the anaerobic baffling adjusting tank 7 is provided with a bucket-shaped structure; the included angle (alpha shown in the figure) between the side wall of the bucket-shaped structure and the horizontal plane is 30-60 degrees, and a slag separation plate 10 is arranged between the anaerobic baffling adjusting tank 7 and the vertical flow artificial wetland tank 13; the sewage purified by the vertical flow artificial wetland tank 13 is collected into the water outlet well 19 through the water collecting channel 22 and finally discharged by the water outlet pipe 20. The constructed wetland system realizes the operation of each process unit by effectively utilizing the potential difference without power consumption.
The concrete realization mode and the function of each component part of the utility model are respectively explained as follows:
The inlet channel 2 is embedded in the water inlet of the anaerobic baffling adjusting tank 7, rural domestic sewage to be purified is introduced into the inlet channel 2 through an inlet pipe 1, and an inclined slag separation net 3 (the slag separation net adopted in the embodiment is a commercially available product) is arranged in the inlet channel 2 and is used for intercepting large floaters and large granular suspended matters in sewage. The sewage after passing through the slag separation net 3 enters the anaerobic baffling adjusting tank 7 through a water inlet of the anaerobic baffling adjusting tank 7 for anaerobic digestion, organic matters are degraded, the stable water quality is adjusted, and the treatment capacity of the subsequent wetland process is improved.
The anaerobic baffling adjusting tank 7 is internally divided into at least two reaction tanks along the water flow direction by a partition plate 8, and each reaction tank is internally filled with an elastic filler 4 and is provided with a baffle plate 6 parallel to the partition plate 8; the bucket-shaped structure is positioned at the bottom of each reaction tank. The anaerobic baffling adjusting tank 7 of the embodiment is internally divided into a first reaction chamber 5 and a second reaction chamber 9 by a partition plate 8, and a bucket-shaped structure at the bottom of each reaction chamber is used for realizing the aggregation of solid substances, improving the treatment efficiency of SS (suspended solids) and shortening the anaerobic retention time; 1 baffle plate 6 is respectively arranged in each reaction chamber and used for realizing uniform water distribution, reducing the percentage of dead water areas and improving the water treatment efficiency; the elastic filler 4 (the embodiment adopts combined fiber filler, and is a commercially available product) in each reaction chamber can increase the total amount of organisms in the anaerobic baffling regulation tank 7 on one hand, and can intercept the inflow suspended matters and part of suspended sludge on the other hand, so that the sludge loss is reduced. The anaerobic baffling adjusting tank 7 with the structural characteristics not only enables the composite type artificial wetland system to be applied to the treatment of high SS sewage, but also is beneficial to improving the impact load resistance of the composite type artificial wetland system.
The sewage pretreated by the anaerobic baffling adjusting tank 7 enters a vertical flow artificial wetland tank 13 through a slag separator 10. The slag trap 10 (the slag trap adopted in this embodiment is a commercially available product) can effectively remove suspended matters, and avoid blocking the vertical flow artificial wetland tank 13.
The vertical flow artificial wetland pool 13 is internally provided with wetland plants 18, a substrate layer 17, a perforated water distribution pipe 14, a perforated water collection pipe 15 and an oxygen-increasing aeration pipe 12. The matrix layer 17 is formed by filler with enhanced phosphorus removal effect and is uniformly filled in the vertical flow artificial wetland tank 13, and specifically, the matrix layer 17 is formed by one or more of ceramsite, shale crushed stone and limestone so as to ensure that the total phosphorus reaches the standard and is discharged. The perforated water distribution pipe 14 and the perforated water collection pipe 15 are respectively positioned at the top and the bottom of the substrate layer 17 and are used for distributing water and collecting water, and the perforated water collection pipe 15 is arranged in a shape like a Chinese character 'tian'. The oxygen-increasing aeration pipe 12 vertically penetrates through the substrate layer 17 and is communicated with the perforated water collecting pipe 15; a plurality of vent holes are annularly arranged on each oxygen-increasing vent pipe in a layered manner, and a vent cap 11 is arranged at the top of each oxygen-increasing vent pipe; through the oxygenation breather pipe 12 that sets up for realize the better condition of oxygenating of vertical flow artifical wetland pool 13, further degrade the organic matter, improve nitrogen and phosphorus removal efficiency, in addition, can realize automatic oxygenation through oxygenation breather pipe 12, reduce entire system's power consumption. The wetland plants 18 planted in the artificial wetland pool 13 are one or more of elephant grass, redroot, pinwheel grass, vetiver grass, reed, canna, iris and loosestrife. Further, when the area of the vertical flow artificial wetland pool 13 is too large, the vertical flow artificial wetland pool 13 can be divided into a plurality of artificial wetland areas with small areas by arranging a separation membrane 16 (for example, made of high density polyethylene HDPE) in the vertical flow artificial wetland pool 13, so as to meet the requirement of the aspect ratio of the artificial wetland and ensure the flow direction of the sewage.
Referring to fig. 2, the sewage purified by the vertical flow artificial wetland pool 13 is collected into the water outlet well 19 through the water collecting channel 22 (in the embodiment, the water outlet well 19 is embedded in the middle of the water collecting channel 22), and finally is directly discharged or recharged to the farmland through the water outlet pipe 20 in the water outlet well 19. Wherein, a perforated permeable wall 23 with a brick-concrete structure is arranged between the water receiving channel 22 and the water outlet well 19. Referring to fig. 1, the water outlet pipe 20 in the water outlet well 19 is in a form of a movable elbow connecting a straight pipe; the activity elbow 23 is rotatable elbow, and the accessible is adjusted the rotation angle of activity elbow 23, regulates and control the water level of vertical flow artificial wetland pond 13 to satisfy the demand of 18 different growth periods of wetland plants to the water level, promote the utility model discloses a treatment effect.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (8)
1. A composite artificial wetland system for rural domestic sewage treatment is characterized by comprising a water inlet channel, an anaerobic baffling adjusting tank, a vertical flow artificial wetland tank, a water receiving channel and a water outlet well which are sequentially connected and integrally constructed; a slag separation net is obliquely arranged in the water inlet channel; the bottom of the anaerobic baffling adjusting tank is provided with a bucket-shaped structure; the included angle between the side wall of the bucket-shaped structure and the horizontal plane is 30-60 degrees, and a slag separation plate is arranged between the anaerobic baffling regulating tank and the vertical flow artificial wetland tank; and the sewage purified by the vertical flow artificial wetland pool is converged into a water outlet well through the water collecting channel.
2. The compound artificial wetland system for rural domestic sewage treatment according to claim 1, wherein the anaerobic baffling regulation tank is divided into at least two reaction tanks along the water flow direction by a partition plate, each reaction tank is filled with elastic filler and is provided with a baffle plate parallel to the partition plate; the hopper-shaped structures are positioned at the bottom of each reaction tank.
3. The composite artificial wetland system for rural domestic sewage treatment according to claim 1, wherein a water outlet pipe is arranged in the water outlet well, and the water outlet pipe adopts a form that a movable elbow is connected with a straight pipe.
4. The composite artificial wetland system for rural domestic sewage treatment according to claim 3, wherein the movable elbow is a rotatable elbow.
5. The compound artificial wetland system for rural domestic sewage treatment according to claim 1, wherein a perforated permeable wall of a brick-concrete structure is arranged between the water receiving channel and the water outlet well.
6. The composite artificial wetland system for rural domestic sewage treatment according to any one of claims 1 to 5, wherein wetland plants, a substrate layer, a perforated water distribution pipe, a perforated water collection pipe and an oxygen aeration pipe are arranged in the vertical flow artificial wetland tank; wherein the substrate layer is uniformly filled in the vertical flow artificial wetland pool; the perforated water distribution pipe and the perforated water collecting pipe are respectively positioned at the top and the bottom of the matrix layer, and the perforated water collecting pipes are arranged in a shape like a Chinese character 'tian'; the aeration pipe vertically penetrates through the substrate layer and is communicated with the perforated water collecting pipe, a plurality of air holes are annularly arranged on each aeration pipe in a layered mode, and a ventilation cap is arranged at the top of each aeration pipe.
7. The composite artificial wetland system for rural domestic sewage treatment according to claim 6, wherein the matrix layer is composed of one or more of ceramsite, shale crushed stone and limestone particles.
8. the compound artificial wetland system for rural domestic sewage treatment according to claim 6, wherein the vertical flow artificial wetland tank is divided into different areas by a separation membrane for ensuring the flow direction of sewage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920088989.4U CN209740821U (en) | 2019-01-18 | 2019-01-18 | Composite artificial wetland system for rural domestic sewage treatment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920088989.4U CN209740821U (en) | 2019-01-18 | 2019-01-18 | Composite artificial wetland system for rural domestic sewage treatment |
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| CN209740821U true CN209740821U (en) | 2019-12-06 |
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| CN201920088989.4U Active CN209740821U (en) | 2019-01-18 | 2019-01-18 | Composite artificial wetland system for rural domestic sewage treatment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113371927A (en) * | 2021-04-30 | 2021-09-10 | 东南大学 | Be adapted to small-size distributed rural domestic sewage's processing system |
| CN113897924A (en) * | 2021-11-05 | 2022-01-07 | 广西大学 | Ecological pollution-reduction drainage ditch construction method for preventing ditch wall soil loss |
-
2019
- 2019-01-18 CN CN201920088989.4U patent/CN209740821U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113371927A (en) * | 2021-04-30 | 2021-09-10 | 东南大学 | Be adapted to small-size distributed rural domestic sewage's processing system |
| CN113897924A (en) * | 2021-11-05 | 2022-01-07 | 广西大学 | Ecological pollution-reduction drainage ditch construction method for preventing ditch wall soil loss |
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