CN209872675U - Rural small-size domestic sewage is collected, is handled, retrieval and utilization integration system - Google Patents
Rural small-size domestic sewage is collected, is handled, retrieval and utilization integration system Download PDFInfo
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- CN209872675U CN209872675U CN201920299086.0U CN201920299086U CN209872675U CN 209872675 U CN209872675 U CN 209872675U CN 201920299086 U CN201920299086 U CN 201920299086U CN 209872675 U CN209872675 U CN 209872675U
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Abstract
The utility model discloses a rural small-size domestic sewage is collected, is handled, retrieval and utilization integration system, it includes anaerobism pond (1), black water collecting pipe (6) are installed to anaerobism pond (1) front end upper portion, baffling board (10) have been placed to inside, triangle-shaped play mill weir (9) through partition wall upper portion communicate mixing tank (2), grey water collecting pipe (7) are equipped with on mixing tank (2) lateral wall, mixing tank (2) bottom is provided with notch cuttype drop (12) by preceding to the back, mixing tank (2) are linked together through bottom hole and distribution tank (3), distribution tank (3) are linked together with ecological filter (4) by perforation tracery wall (14), through-hole and clean water basin (5) intercommunication on the pool wall are passed through to ecological filter (4) back end. The technical effects of the utility model: compared with the prior art, the index of the treated water is greatly improved.
Description
Technical Field
The utility model belongs to the sewage treatment technology, in particular to a rural sewage treatment facility suitable for the condition of less quantity of residents.
Background
At present, most households in rural areas in China do not have perfect sewage collection systems and corresponding sewage treatment facilities, produced sewage is directly discharged through ground ditches or downpipes built at home without treatment, although the discharge amount of the part of sewage is not large, the quality of the sewage is poor, particularly the content of nitrogen and phosphorus elements is high, and the direct discharge can cause small influence on the environment.
The construction of methane tanks as sewage and wastewater treatment facilities is greatly advocated in rural areas of China, and although the methane tanks can be comprehensively utilized to save energy, improve and protect the environment, save chemical fertilizers and pesticides, improve the yield and quality of crops, promote and drive the development of the breeding industry and the like, the methane tanks also have the defects of unstable gas production, poor sanitary conditions, certain potential safety hazards and the like, and meanwhile, the construction cost of the methane tanks is higher. In addition, the waste liquid discharged from the methane tank may cause secondary pollution to rural environment. In conclusion, the methane tank cannot become an economic and efficient rural domestic sewage treatment mode.
The land infiltration system is a widely adopted sewage treatment technology and has the advantages of good treatment effect, investment cost saving, no energy consumption, low operation cost and simple and convenient maintenance and management, but the technology also has the limitations of easy blockage under larger load, water blockage, large floor area, easy pollution to underground water and the like; therefore, the technology is not suitable for being adopted in the areas with poor land resources, tense land and less underground water resources.
Chinese patent document CN104445831A discloses a household rural domestic sewage treatment and recycling integrated system, which comprises a hydrolysis acidification tank (1), a sedimentation tank (2), an ecological filter tank (3) and a water collection tank (4), wherein the upper part of the front end of the hydrolysis acidification tank (1) is provided with a black water collection pipe (5), the rear end of the hydrolysis acidification tank (1) is communicated with the sedimentation tank (2) through a hydrolysis acidification tank water outlet pipe (8), the side wall of the sedimentation tank (2) is provided with a grey water collection pipe (6), the sedimentation tank (2) is communicated with the ecological filter tank (3) through an ecological filter tank water distribution pipe (7), a distributed water outlet of the ecological filter tank water distribution pipe (7) is embedded into a sand layer of the ecological filter tank (3), and is positioned above the coarse gravel filler (12) at the front section of the ecological filter tank (3), and the rear section of the ecological filter tank (3) is communicated with the water collecting tank (4) through a through hole on the tank wall. The integrated system can realize sewage treatment for single rural household.
However, according to the requirements of water pollutant emission standards (DB 50/848-2018) of rural domestic sewage centralized treatment facilities newly issued in 2018, the discharged water treated by the patent can not meet various indexes, and the improvement of the sewage treatment effect is needed.
Disclosure of Invention
To the problem that prior art exists, the utility model aims to solve the technical problem that a rural small-size domestic sewage is collected, is handled, retrieval and utilization integrated system is provided, it can improve sewage treatment effect, and the discharged water after handling can satisfy rural domestic sewage centralized treatment facility water pollutant emission standard (DB 50/848-2018).
The utility model aims to solve the technical problem that realize through such technical scheme, it includes the anaerobism pond, the mixed pond, the distribution tank, ecological filter pond and clean water basin, anaerobism pond front end upper portion is installed the black water collecting pipe, the air duct is equipped with to the rear end upper portion, the baffling board has been placed to anaerobism pond inside, the triangle-shaped play mill weir intercommunication mixed pond on anaerobism pond through partition wall upper portion, the grey water collecting pipe is equipped with on the mixed pond lateral wall, mixed pond bottom is provided with the notch cuttype drop by preceding to the back, the mixed pond baffling board has been placed in the mixed pond, the mixed pond is linked together through bottom hole and distribution tank, the distribution tank is linked together by perforation tracery wall and ecological filter tank, through-hole and clean water basin intercommunication.
The utility model discloses a theory of operation is: the sewage is treated by shunting according to different water qualities, and the mixing ratio of the black water to the grey water is about 1: 3. Black water enters the anaerobic tank through the black water collecting pipe, the main function of the part is hydrolysis acidification, and macromolecular pollutants are degraded into micromolecular pollutants through anaerobic treatment; the grey water directly enters the mixing tank to be mixed with the black water treated by the anaerobic tank, and the mixed sewage forms a hydraulic jump when flowing through the stepped water drop device, so that the contact surface of the liquid level and the air is continuously updated, and the oxygenation of the water body is completed; after being uniformly distributed by the water distribution tank, the effluent enters the ecological filter tank for further treatment, and the effluent is stored in a clean water tank for farmland irrigation.
The technical effects of the utility model:
after the sewage is treated by the utility model, the water quality of the sewage meets the water pollutant discharge standard (DB 50/848-2018) of the rural domestic sewage centralized treatment facility newly issued in 2018, and compared with the prior art, the index of the treated water is greatly improved.
Drawings
The drawings of the utility model are as follows:
fig. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a sectional view of the anaerobic tank and the mixing tank of the present invention;
FIG. 4 is a section view of the ecological filter.
In the figure: 1. an anaerobic tank; 2. a mixing tank; 3. a water distribution tank; 4. an ecological filter tank; 5. a clean water tank; 6. a black water collecting pipe; 7. a grey water collection tube; 8. an air duct; 9. a triangular effluent weir; 10. a movable baffle plate of the anaerobic tank; 11. a movable partition plate; 12. step-type water drop; 13. a mixing tank baffle plate; 14. perforating a tracery wall; 15. planting soil; 16. a fine sand packing layer; 17. and a mixed filler layer.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
as shown in figures 1 and 2, the utility model comprises an anaerobic tank 1, a mixing tank 2, a distribution tank 3, an ecological filter tank 4 and a clean water tank 5, wherein the upper part of the front end of the anaerobic tank 1 is provided with a black water collecting pipe 6, the upper part of the rear end is provided with an air duct 8, so as to ensure that the biogas generated in the anaerobic state can enter the air in time and avoid explosion caused by excessive biogas in the anaerobic tank, a baffle plate 10 is arranged in the anaerobic tank, the anaerobic tank 1 is communicated with the mixing tank 2 through a triangular effluent weir 9 at the upper part of a partition wall, a grey water collecting pipe 7 is arranged on the side wall of the mixing tank 2, a step-shaped drop 12 is arranged at the bottom of the mixing tank 2 from front to back, a mixing tank baffle plate 13 is arranged in the mixing tank 2, the mixing tank 2 is communicated with a distribution tank 3 through a hole at the bottom, the distribution tank 3 is communicated with the ecological filter tank 4 through a perforated wall 14, and the rear section of the ecological filter tank 4 is communicated with a clean water tank 5 through a through hole on the tank wall.
As shown in figure 1, the anaerobic tank 1 is isolated from the mixing tank 2 by a movable partition plate 11, and a triangular effluent weir 9 is arranged on the movable partition plate 11. The movable partition 11 can adjust the volume of the anaerobic tank 1 according to the load, thereby changing the hydraulic retention time to adapt to different loads. The corners of the anaerobic tank 1 and the mixing tank 2 are rounded to prevent short flow.
The top of the anaerobic tank 1 is covered with a sealing cover plate, the anaerobic tank 1 is divided into four sections by baffle plates 10, and the gaps between two adjacent sections of tank bodies are communicated through the side openings of the baffle plates 10. The black water flow state is got into by the black water collecting pipe 6 on anterior segment anaerobism pond upper portion, then flows into several sections back anaerobism ponds from baffling board 10 limit mouth, flows out from anaerobism pond upper portion at last to improve black water treatment efficiency.
As shown in fig. 3, the grey water collecting pipe 7 in the mixing tank 2 is close to one side of the triangular effluent weir 9 at the upper part of the partition wall of the anaerobic tank 1, and water in the grey water collecting pipe 7 and effluent water of the triangular effluent weir 9 flow into the mixing tank; water is fed from the same side of the mixing tank so as to achieve the advection type mixing, and simultaneously, water is fed from the upper part of the mixing tank, and the water body falls from the step-shaped drop 12 step by step, thus completing the process of aerating and oxygenating the water body.
As shown in fig. 4, the ecological filter tank 4 comprises planting soil 15, a fine sand filler layer 16 and a mixed filler layer 17 from top to bottom, the planting soil 15 is a mixture of fine sand with a thickness of 30cm and soil, and plants with sewage purification capability are planted on the planting soil 15; the fine sand filler layer 16 is filled in the middle layer and has infiltration function. The mixed packing layer 17 is composed of waste bricks and gravels with the grain diameter of 2-3 cm. The mixed packing layer 17 finishes the removal of large-particle pollutants in the sewage through physical precipitation and filtering action, the fine sand packing layer 16 achieves the purpose of removing the pollutants with smaller particle sizes in the sewage through the combined action of adsorption and filtration, and the removal of nitrogen and phosphorus and other nutrient elements in the sewage is finished through the combined action of plants planted on the planting soil 15 and microorganisms contained in the planting soil. The sewage uniformly enters the ecological filter tank 4 after passing through the perforated flower wall 14 of the distribution tank, the sewage is purified in the ecological filter tank 4, and the purified water enters the clean water tank 5 for storage and utilization through the holes at the bottom end of the rear part of the ecological filter tank 4.
The utility model discloses at the actual operation treatment effect in a certain villages and towns in Chongqing:
the water quality of the black water inlet is COD 1046-1485(mg/l) and NH4 +421-479(mg/l) and 22-28(mg/l) of TP; the inlet water quality of the grey water is COD 230-356(mg/l) and NH4 +-N:8-20(mg/l)、TP:1-5.5(mg/l)。
The effluent quality is as follows: COD: 63-78(mg/l), NH4 +-N:2-19(mg/l)、TP:1.6-2.7(mg/l)。
The COD of the effluent is less than 80mg/l and NH specified in the discharge standard of water pollutants (DB 50/848-2018) of rural domestic sewage centralized treatment facilities4 +N is less than 20mg/l in the water pollutant discharge standard of the rural domestic sewage centralized treatment facility (DB 50/848-2018), and TP is less than 3mg/l in the water pollutant discharge standard of the rural domestic sewage centralized treatment facility (DB 50/848-2018). It can be seen from this that: the utility model discloses set up cascaded drop aeration equipment in mixing the pond and adopt the perforation flower wall to carry out the water distribution when the distribution tank goes out water, can reduce the DO's of aquatic concentration by a wide margin to reduce the emergence of sewage short-term flow phenomenon in the equipment, make the utility model discloses a sewage treatment effect has great improvement, has reached the sewage treatment requirement of new standard.
Claims (6)
1. A rural small-size domestic sewage collects, handles, retrieval and utilization integration system, characterized by: comprises an anaerobic tank (1), a mixing tank (2), a distribution tank (3), an ecological filter tank (4) and a clean water tank (5), wherein the upper part of the front end of the anaerobic tank (1) is provided with a black water collecting pipe (6), the upper part of the rear end is provided with an air duct (8), a baffle plate (10) is placed in the anaerobic tank, the anaerobic tank (1) is communicated with the mixing tank (2) through a triangular water outlet weir (9) at the upper part of a partition wall, the side wall of the mixing tank (2) is provided with a grey water collecting pipe (7), the bottom of the mixing tank (2) is provided with a step-shaped drop (, a mixing tank baffle plate (13) is arranged in the mixing tank (2), the mixing tank (2) is communicated with a distribution tank (3) through a hole at the bottom, the distribution tank (3) is communicated with the ecological filter tank (4) through a perforated tracery wall (14), and the rear section of the ecological filter tank (4) is communicated with a clean water tank (5) through a through hole on the tank wall.
2. The rural small-sized domestic sewage collecting, treating and recycling integrated system according to claim 1, which is characterized in that: the anaerobic tank (1) and the mixing tank (2) are isolated by a movable clapboard (11), and a triangular effluent weir (9) is arranged on the movable clapboard (11).
3. The rural small-sized domestic sewage collecting, treating and recycling integrated system according to claim 2, characterized in that: the corners of the anaerobic tank (1) and the mixing tank (2) are both subjected to fillet treatment.
4. The rural small-sized domestic sewage collection, treatment and reuse integrated system according to claim 1, 2 or 3, characterized in that: the top of the anaerobic tank (1) is covered with a sealing cover plate, the anaerobic tank (1) is divided into four sections by baffle plates (10), and the gaps of two adjacent sections of tank bodies are communicated through the edge openings of the baffle plates (10).
5. The rural small-sized domestic sewage collecting, treating and recycling integrated system according to claim 4, which is characterized in that: the grey water collecting pipe (7) in the mixing tank (2) is close to one side of a triangular water outlet weir (9) at the upper part of the partition wall of the anaerobic tank (1).
6. The rural small-sized domestic sewage collecting, treating and recycling integrated system according to claim 4, which is characterized in that: the ecological filter tank (4) comprises planting soil (15), a fine sand filler layer (16) and a mixed filler layer (17) from top to bottom, and plants with sewage purification capacity are planted on the planting soil (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920299086.0U CN209872675U (en) | 2019-03-11 | 2019-03-11 | Rural small-size domestic sewage is collected, is handled, retrieval and utilization integration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920299086.0U CN209872675U (en) | 2019-03-11 | 2019-03-11 | Rural small-size domestic sewage is collected, is handled, retrieval and utilization integration system |
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| CN209872675U true CN209872675U (en) | 2019-12-31 |
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| CN201920299086.0U Expired - Fee Related CN209872675U (en) | 2019-03-11 | 2019-03-11 | Rural small-size domestic sewage is collected, is handled, retrieval and utilization integration system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109734254A (en) * | 2019-03-11 | 2019-05-10 | 重庆大学 | A kind of small rural Domestic sewage collecting, processing, reusing integral system |
| CN115286109A (en) * | 2022-09-30 | 2022-11-04 | 四川省生态环境科学研究院 | High and cold rural sewage treatment device and treatment method |
-
2019
- 2019-03-11 CN CN201920299086.0U patent/CN209872675U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109734254A (en) * | 2019-03-11 | 2019-05-10 | 重庆大学 | A kind of small rural Domestic sewage collecting, processing, reusing integral system |
| CN115286109A (en) * | 2022-09-30 | 2022-11-04 | 四川省生态环境科学研究院 | High and cold rural sewage treatment device and treatment method |
| CN115286109B (en) * | 2022-09-30 | 2022-12-16 | 四川省生态环境科学研究院 | High and cold rural sewage treatment device and treatment method |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20191231 |