CN213012479U - Annular excrement multi-stage ecological treatment system - Google Patents
Annular excrement multi-stage ecological treatment system Download PDFInfo
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- CN213012479U CN213012479U CN202021551625.4U CN202021551625U CN213012479U CN 213012479 U CN213012479 U CN 213012479U CN 202021551625 U CN202021551625 U CN 202021551625U CN 213012479 U CN213012479 U CN 213012479U
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Abstract
The utility model relates to a dirty multistage ecological treatment system of annular excrement, the system includes by the central sedimentation separation distribution tank that sets gradually to the periphery, pushes away a class oxygen deficiency pond, pushes away a class oxygen pond and constructed wetland, the sedimentation separation distribution tank is located central point and puts, it is located to push away a class oxygen deficiency pond the periphery in sedimentation separation distribution tank, it is located to push away a class oxygen pond the periphery in class oxygen deficiency pond, constructed wetland is located the periphery in class oxygen pond pushes away. The utility model has the advantages that: by combining the anoxic-aerobic denitrification biological treatment with the ecological treatment mode matched with the multi-stage artificial wetland, the denitrification and dephosphorization efficiency is high, and the generation of gases such as carbon dioxide, nitrous oxide and the like can be effectively reduced; the design of the plug flow type tank body improves the flexibility of sewage treatment; the occupied area is small, and the method is suitable for treating rural small-flow sewage; and a multi-stage artificial wetland matching mode is adopted, so that the environmental pollution can be prevented, and the recycling of substances can be improved.
Description
Technical Field
The utility model relates to an dirty multistage ecological treatment system of annular excrement.
Background
With the development of rural economy, the toilet reconstruction project is gradually carried out. The water content of excrement in a dry toilet before toilet changing is low, and excrement picking can be generally carried out at intervals of several months; the amount of sewage after toilet change is increased, and if the treatment of the excrement is improper, the following hazards are possible: first, infiltration through the soil, thereby causing contamination of the groundwater supply; secondly, the polluted water body has high nitrogen and phosphorus contents, so that the breeding of mosquitoes and flies and the multiplication of bacteria are caused, and the polluted water body becomes the infection source of various diseases. In the existing sewage treatment method after toilet modification in rural areas, the secondary and tertiary treatment modes of rural sewage generally adopt integrated equipment, but the equipment has the problems of high manufacturing cost, high transportation cost, high maintenance difficulty, easy corrosion, short service life and the like, and a completely mixed treatment mode is mostly adopted, so that the risk of sludge expansion is easy to occur and the treatment effect is general. Therefore, the method is not suitable for rural areas with laggard economic development and remote terrain in certain situations. Moreover, the existing rural sewage treatment mostly uses a single family as a unit, the centralized treatment degree is low, the recycling degree of the sewage is low, and the requirement of long-term development in rural areas is not met.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects existing in the problems, the utility model provides an annular excrement multistage ecological treatment system, which comprises a sedimentation separation distribution tank, a plug-flow anoxic tank, a plug-flow aerobic tank and an artificial wetland which are sequentially arranged from the center to the periphery, wherein the sedimentation separation distribution tank is positioned at the central position, the plug-flow anoxic tank is positioned at the periphery of the sedimentation separation distribution tank, the plug-flow aerobic tank is positioned at the periphery of the plug-flow anoxic tank, and the artificial wetland is positioned at the periphery of the plug-flow aerobic tank; the water inlet area and the water outlet area of the plug flow anoxic tank are separated by a wall A, the water inlet area and the water outlet area of the plug flow anoxic tank are separated by a wall B, and the water inlet area and the water outlet area of the artificial wetland are separated by a wall C;
the sedimentation separation distribution tank is communicated with the plug flow anoxic tank through a sedimentation tank water outlet pipe, one end of the sedimentation tank water outlet pipe is communicated with the sedimentation separation distribution tank, and the other end of the sedimentation tank water outlet pipe is communicated with a water inlet area of the plug flow anoxic tank;
the plug flow anoxic tank is communicated with the plug flow aerobic tank through an anoxic tank water outlet pipe, one end of the anoxic tank water outlet pipe is communicated with a water outlet area of the plug flow anoxic tank, and the other end of the anoxic tank water outlet pipe is communicated with a water inlet area of the plug flow aerobic tank;
the plug-flow aerobic tank is communicated with the artificial wetland through an aerobic tank water outlet pipe, one end of the aerobic tank water outlet pipe is communicated with a water outlet area of the plug-flow aerobic tank, and the other end of the aerobic tank water outlet pipe is communicated with a water inlet area of the artificial wetland.
As the utility model discloses further improve, the sedimentation separation distribution tank includes that the settling zone arrives and the overflow district, the overflow district is located the periphery of settling zone, sedimentation separation distribution tank inlet tube intercommunication extremely inside the settling zone, the one end intercommunication of sedimentation tank outlet pipe extremely the overflow district, the other end intercommunication of sedimentation tank outlet pipe extremely plug flow oxygen deficiency pond.
As the utility model discloses further improve, the bottom of settling zone is the infundibulate structure, the bottom of infundibulate structure sets up the mud pipe.
As a further improvement of the utility model, the bottom of the plug-flow anoxic pond is provided with a plurality of aeration devices which are uniformly arranged.
As the utility model discloses preferred, the aeration equipment that pushes away the inside setting of class oxygen deficiency pond is perforation aeration dish.
As a further improvement of the utility model, the bottom of the plug flow aerobic tank is provided with a plurality of aeration devices which are uniformly arranged.
Preferably, the aeration device arranged in the plug-flow aerobic tank is a perforated aeration disc.
As a further improvement of the utility model, a plurality of low-speed flow pushing devices are arranged inside the flow pushing anoxic pond.
As a further improvement of the utility model, a plurality of low-speed plug flow devices are arranged inside the plug flow aerobic tank.
As the utility model discloses further improve, constructed wetland is multistage constructed wetland, sets up the catch basin before each stage constructed wetland, and last one-level constructed wetland ground sets up the drain pipe.
As the utility model discloses further improve, constructed wetland is inside to set up the drop step.
As a further improvement of the utility model, the upper part of the artificial wetland is planted with aquatic plants, the lower part of the artificial wetland is filled with filler, and the particle size of the filler is gradually increased from top to bottom; the particle size of the filler is arranged from large to small in the water inlet area of the artificial wetland along the water flow direction, and the particle size of the filler is arranged from small to large in the water outlet area of the artificial wetland along the water flow direction.
As the utility model discloses preferred, constructed wetland's bottom sets up to domatic along the rivers direction.
The utility model has the advantages that: by combining the anoxic-aerobic denitrification biological treatment with the ecological treatment mode matched with the multi-stage artificial wetland, the denitrification and dephosphorization efficiency is high, carbon dioxide greenhouse gas in the environment can be absorbed, and the generation of carbon dioxide, nitrous oxide and other gases is effectively reduced; the plug flow type tank body design improves the flexibility of sewage treatment, and the sludge completely completes the processes of adsorption and metabolism, so that the pollutant treatment effect is improved; the occupied area is small, and the method is suitable for treating rural small-flow sewage; and the multistage artificial wetlands are matched, so that the environmental pollution is prevented, and the recycling of substances is improved.
Drawings
FIG. 1 is a schematic structural view of an annular fecal sewage multistage ecological treatment system of the present invention;
fig. 2 is a cross-sectional view taken along line a-a of fig. 1.
In the figure: 1. a precipitation separation distribution pool; 2. a plug flow anoxic tank; 3. a plug flow aerobic tank; 4. artificial wetland; 5. a water collecting tank; 6. a water outlet of the water collecting tank; 7. a water outlet pipe of the sedimentation tank; 8. a water outlet pipe of the anoxic tank; 9. a water outlet pipe of the aerobic tank; 10. a low-speed impeller A; 11. a low-speed impeller B; 12. perforating an aeration disc; 13. a microporous aeration disc; 14. a water inlet pipe of a precipitation separation distribution tank; 15. a settling zone overflow weir; 16. a sludge discharge pipe; 17. a drop step; 18. a wall body A; 19. a wall body B; 20. a wall body C; 21. and a water discharge pipe.
Detailed Description
As shown in fig. 1-2, the multistage ecological treatment system for annular feces according to the embodiment of the present invention comprises a sedimentation separation distribution tank 1, a plug flow anoxic tank 2, a plug flow aerobic tank 3 and an artificial wetland 4, which are sequentially arranged from the center to the periphery, wherein the sedimentation separation distribution tank 1 is located at the center, the plug flow anoxic tank 2 is located at the periphery of the sedimentation separation distribution tank 1, the plug flow aerobic tank 2 is located at the periphery of the plug flow anoxic tank 1, and the artificial wetland 4 is located at the periphery of the plug flow aerobic tank 3; the water inlet area and the water outlet area of the plug-flow anoxic tank 2 are separated by a wall A18, the water inlet area and the water outlet area of the plug-flow aerobic tank 2 are separated by a wall B19, and the water inlet area and the water outlet area of the artificial wetland 4 are separated by a wall C20;
the sedimentation separation distribution tank 1 is communicated with the plug flow anoxic tank 2 through a sedimentation tank water outlet pipe 7, one end of the sedimentation tank water outlet pipe 7 is communicated with the sedimentation separation distribution tank 1, and the other end of the sedimentation tank water outlet pipe 7 is communicated with a water inlet area of the plug flow anoxic tank 2;
the plug flow anoxic tank 2 is communicated with the plug flow aerobic tank 3 through an anoxic tank water outlet pipe 8, one end of the anoxic tank water outlet pipe 8 is communicated with a water outlet area of the plug flow anoxic tank 2, and the other end of the anoxic tank water outlet pipe 8 is communicated with a water inlet area of the plug flow aerobic tank 3;
the plug-flow aerobic tank 3 is communicated with the artificial wetland 4 through an aerobic tank water outlet pipe 9, one end of the aerobic tank water outlet pipe 9 is communicated with a water outlet area of the plug-flow aerobic tank 3, and the other end of the aerobic tank water outlet pipe 9 is communicated with a water inlet area of the artificial wetland 4.
In an alternative embodiment, the sedimentation separation distribution tank 1 comprises a sedimentation region and an overflow region, the overflow region is positioned at the periphery of the sedimentation region, a water inlet pipe 14 of the sedimentation separation distribution tank is communicated to the inside of the sedimentation region, one end of a water outlet pipe 7 of the sedimentation tank is communicated to the overflow region, and the other end of the water outlet pipe 7 of the sedimentation tank is communicated to the plug-flow anoxic tank 2. The pool wall upper edge of the settling zone is lower than the pool wall upper edge of the overflow zone, the bottom of the overflow zone is higher than the pool wall of the peripheral plug-flow anoxic pool, and the water outlet pipe 7 of the settling zone is arranged at the bottom of the overflow zone, so that sewage in the overflow zone smoothly flows into the plug-flow anoxic pool 2. The bottom of sedimentation zone is the infundibulate structure, and the bottom of infundibulate structure sets up mud pipe 16, and the structure of leaking hopper-shaped can prevent mud at the sedimentation zone deposit, is favorable to the smooth discharge of mud.
In an alternative embodiment, a plurality of low-speed flow pushing devices, such as low-speed flow pushers a 10, are arranged inside the flow pushing anoxic pond 2. In another alternative embodiment, a plurality of aeration devices are uniformly arranged at the bottom of the plug flow anoxic tank 2, such as perforated aeration disks 12, the perforated aeration disks 12 are arranged in spaced groups, and a certain distance is kept between each group of perforated aeration disks 12 and a certain gap is kept between the perforated aeration disks 12 and the tank wall of the plug flow anoxic tank 2.
In an alternative embodiment, a plurality of low-speed flow pushing devices, such as low-speed flow pushing devices B11, are arranged in the flow pushing aerobic tank 3. In another alternative embodiment, a plurality of aeration devices are uniformly arranged at the bottom of the plug flow aerobic tank 3, for example, the aeration devices are microporous aeration disks 13, the microporous aeration disks 13 are arranged in groups at intervals, and a certain distance is kept between each group of microporous aeration disks 13 and a certain gap is kept between each group of microporous aeration disks 13 and the tank wall of the plug flow aerobic tank 3.
Wherein, the utility model discloses do not specifically prescribe a limit to the quantity, kind and the model of impeller and aeration equipment, can carry out the adaptability design according to the size etc. that pushes away class oxygen deficiency pond 2 and push away class oxygen pond 3, as long as can realize pushing away class function, satisfy the designing requirement can. The setting of impeller has improved sewage treatment's flexibility, and the complete completion of mud adsorbs and the process of metabolism for the pollutant treatment effect improves. The aeration device can meet the high dissolved oxygen requirement during the nitration reaction and avoid the existence of dissolved oxygen during the denitrification process, thereby ensuring the activity of the nitrous oxide reductase, increasing the generation of nitrogen and reducing the emission of nitrous oxide.
The utility model provides an optional embodiment, constructed wetland 4 is the combination of multistage constructed wetland, set up catch basin 5 before the first order constructed wetland, good oxygen pond outlet pipe 9 pond lets in catch basin 5, catch basin 5 passes through catch basin water inlet 6 and communicates with first order constructed wetland, set up small-size catchment canal behind each grade constructed wetland, the catchment canal sets up inlet opening 19 and apopore 20, the inlet opening communicates with preceding one-level constructed wetland, the apopore communicates with the next stage constructed wetland, set up the outlet canal behind the last one-level constructed wetland. The interior of the artificial wetland is provided with a drop step 17, and the water quality is improved through the oxygenation of physical drop. The upper part of the artificial wetland 4 is planted with aquatic plants, the lower part of the artificial wetland 4 contains a filler, the grain diameter of the filler is gradually increased from top to bottom, and materials such as gravel, quartz sand and the like are filled in the filler. In the water inlet area of the artificial wetland 4, the matrix with the filler particle size from large to small is arranged along the water flow direction, and in the water outlet area of the artificial wetland 4, the matrix with the filler particle size from small to large is arranged along the water flow direction, so that the water flow is free from choking, the filler is prevented from being blocked, and a good treatment effect is kept.
In an optional implementation mode, the bottom of the artificial wetland 4 is provided with a 2% gradient along the water flow direction, so that the uniformity of water distribution and collection can be ensured.
In an optional implementation mode, a fall of 0.6-1.0m is formed between the elevation of the water inlet hole connected with the artificial wetland 4 and the elevation of the water outlet hole, so that the flow of water in the water collecting pool is facilitated.
In an alternative embodiment, the elevation of the drain pipe 21 is lower than that of the water inlet hole of the water collecting channel, so that the water in the artificial wetland can be drained.
When in specific use: the utility model discloses a multistage ecological treatment system of annular excrement is dirty in a plurality of families sharing one, sewage passes through the sewage pipeline and assembles annular excrement multistage ecological treatment system to get into the settling zone of sedimentation distribution pool via sedimentation separation distribution pool inlet tube 14, sewage gets into the overflow area of sedimentation separation distribution pool 1 through settling zone overflow weir 15 overflow, the sewage in overflow area gets into the plug flow oxygen deficiency pond through sedimentation pool outlet pipe 7, the sewage that gets into in plug flow oxygen deficiency pond 2 encircles after plug flow a week gets into plug flow aerobic tank 3 via oxygen deficiency pond outlet pipe 8, when sewage flows through the plug flow oxygen deficiency pond, low-speed plug flow ware A10 work, the perforation aeration dish 12 that lies in the bottom of the pool simultaneously works, prevent sludge deposition; the sewage entering the plug flow aerobic tank 3 flows around the circumference and then enters the artificial wetland 4 through the aerobic tank water outlet pipe 9, when the sewage flows through the plug flow aerobic tank, the low-speed flow pushing device B11 works, and the microporous aeration disc 13 positioned at the bottom of the tank works, so that the oxygen filling amount is improved, and the sludge deposition is prevented; the sewage enters the artificial wetland 4 to be fully purified around one circle, and the purified water is discharged by a drain pipe and then enters a subsequent treatment device or is directly discharged.
Dirty multistage ecological treatment system of excrement can guarantee the carbon dioxide greenhouse gas in good nitrogen and phosphorus removal efficiency, the absorption environment effectively, can reduce greenhouse gas's emission when reducing area, provide good play water quality of water and certain economic benefits to have characteristics such as easy to maintain, construction cost low, life cycle length.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The annular fecal sewage multistage ecological treatment system is characterized by comprising a precipitation separation distribution pool (1), a plug-flow anoxic pool (2), a plug-flow aerobic pool (3) and an artificial wetland (4) which are sequentially arranged from the center to the periphery, wherein the precipitation separation distribution pool (1) is positioned at the central position, the plug-flow anoxic pool (2) is positioned at the periphery of the precipitation separation distribution pool (1), the plug-flow aerobic pool (3) is positioned at the periphery of the plug-flow anoxic pool (2), and the artificial wetland (4) is positioned at the periphery of the plug-flow aerobic pool (3); the water inlet area and the water outlet area of the plug-flow anoxic tank (2) are separated by a wall A (18), the water inlet area and the water outlet area of the plug-flow aerobic tank (3) are separated by a wall B (19), and the water inlet area and the water outlet area of the artificial wetland (4) are separated by a wall C (20);
the sedimentation separation distribution tank (1) is communicated with the plug flow anoxic tank (2) through a sedimentation tank water outlet pipe (7), one end of the sedimentation tank water outlet pipe (7) is communicated with the sedimentation separation distribution tank (1), and the other end of the sedimentation tank water outlet pipe (7) is communicated with a water inlet area of the plug flow anoxic tank (2);
the plug-flow anoxic tank (2) is communicated with the plug-flow aerobic tank (3) through an anoxic tank water outlet pipe (8), one end of the anoxic tank water outlet pipe (8) is communicated with a water outlet area of the plug-flow anoxic tank (2), and the other end of the anoxic tank water outlet pipe (8) is communicated with a water inlet area of the plug-flow aerobic tank (3);
the plug-flow aerobic tank (3) is communicated with the artificial wetland (4) through an aerobic tank water outlet pipe (9), one end of the aerobic tank water outlet pipe (9) is communicated with a water outlet area of the plug-flow aerobic tank (3), and the other end of the aerobic tank water outlet pipe (9) is communicated with a water inlet area of the artificial wetland (4).
2. The multistage ecological treatment system for annular fecal sewage according to claim 1, characterized in that the sedimentation separation distribution basin (1) comprises a sedimentation area to an overflow area, the overflow area is located at the periphery of the sedimentation area, the inlet pipe of the sedimentation separation distribution basin (1) is communicated to the inside of the sedimentation area, one end of the outlet pipe (7) of the sedimentation basin is communicated to the overflow area, and the other end of the outlet pipe (7) of the sedimentation basin is communicated to the plug flow anoxic basin (2).
3. The multistage ecological treatment system of annular excrement of claim 2, wherein the bottom of said sedimentation zone is a funnel-shaped structure, and a sludge discharge pipe is arranged at the bottom of said funnel-shaped structure.
4. The multistage ecological treatment system for annular fecal sewage according to the claim 1 characterized in that the bottom of the plug flow anoxic tank (2) is provided with a plurality of aeration devices which are uniformly arranged.
5. The multistage ecological treatment system for annular fecal sewage according to claim 1, wherein the bottom of the plug flow aerobic tank (3) is provided with a plurality of aeration devices which are uniformly arranged.
6. The multistage ecological treatment system for excrement of claim 1, wherein a plurality of low-speed plug flow devices are arranged in the plug flow anoxic tank (2).
7. The multistage ecological treatment system for annular fecal sewage according to claim 1, wherein a plurality of low speed plug flow devices are arranged inside the plug flow aerobic tank (3).
8. The annular multistage ecological fecal sewage treatment system according to claim 1, wherein the artificial wetland (4) is a multistage artificial wetland, a collecting tank is arranged in front of each stage of artificial wetland, and a drain pipe (21) is arranged at the last stage of artificial wetland.
9. The multistage ecological treatment system of sewage sludge of annular excrement of claim 1, characterized in that drop steps (17) are arranged inside the constructed wetland (4).
10. The multistage ecological treatment system for excrement of claim 1, wherein aquatic plants are planted on the upper part of the artificial wetland (4), the lower part of the artificial wetland (4) is filled with a filler, and the particle size of the filler is gradually increased from top to bottom; in the water inlet area of the artificial wetland (4), the grain diameter of the filler is arranged from large to small along the water flow direction, and in the water outlet area of the artificial wetland (4), the grain diameter of the filler is arranged from small to large along the water flow direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021551625.4U CN213012479U (en) | 2020-07-30 | 2020-07-30 | Annular excrement multi-stage ecological treatment system |
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| CN202021551625.4U CN213012479U (en) | 2020-07-30 | 2020-07-30 | Annular excrement multi-stage ecological treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114314833A (en) * | 2021-12-14 | 2022-04-12 | 中国城市建设研究院有限公司 | Magnesium hydroxide modified waste brick, preparation method thereof and application thereof in constructed wetland system |
-
2020
- 2020-07-30 CN CN202021551625.4U patent/CN213012479U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114314833A (en) * | 2021-12-14 | 2022-04-12 | 中国城市建设研究院有限公司 | Magnesium hydroxide modified waste brick, preparation method thereof and application thereof in constructed wetland system |
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