Six-section type courtyard ecologicalization sewage treatment reactor
By designing a six-stage courtyard ecological sewage treatment reactor, the problem that the existing technology is not suitable for the dispersed population is solved, and the miniaturization, integration and efficient purification of sewage treatment are achieved, reducing treatment costs.
Patent Information
- Application Number
- CN202421702384.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The existing sewage treatment technology is not suitable for sewage treatment devices with long treatment cycles, high costs, and difficult to achieve miniaturization and integrated sewage treatment devices.
A six-stage courtyard ecological sewage treatment reactor is designed, including a pretreatment tank, a sedimentation tank, an anaerobic tank, a first purification tank, a second purification tank and a third purification tank. It adopts a series structure and alternating circulation pipelines, combined with stirring, aeration and photovoltaic components, and is purified by artificial wetlands and ozone treatment tanks.
The sewage treatment device is miniaturized and integrated, the black water treatment efficiency is improved, the treatment pressure is reduced, the purification efficiency is improved, and the operating cost is reduced through self-power supply and automatic operation.
Smart Images
Figure CN222877752U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of sewage treatment, and in particular to a six-stage courtyard ecological sewage treatment reactor. Background Art
[0002] Most domestic sewage treatment processes are concentrated first and then treated in a specific sewage treatment plant. In the collection process, for the convenience of collection, no distinction is made between black water and gray water. All sewage is directly mixed together, and then the collected sewage is uniformly treated as black water, and then goes through septic tanks, sedimentation, microbial purification, filtration and other treatments in sequence. Finally, the treated water is discharged into the natural environment when it meets the discharge standards. This centralized treatment method, on the one hand, does not distinguish between gray water and black water, and the overall treatment cycle is long and the treatment cost is high. On the other hand, it is only suitable for cities with relatively dense populations. For areas with relatively dispersed populations, such as rural areas or sparsely populated mountainous areas, the centralized accumulation and regular treatment method has low treatment efficiency and is likely to affect the living environment of residents. Therefore, there is an urgent need for a miniaturized and integrated sewage treatment reactor. Utility Model Content
[0003] The embodiment of the utility model provides a six-stage courtyard ecological sewage treatment reactor, which realizes the miniaturization and integration of sewage treatment equipment and solves the problem that the existing sewage treatment is not suitable for areas with dispersed populations.
[0004] The utility model provides a six-stage courtyard ecological sewage treatment reactor, comprising a pretreatment tank, a sedimentation tank, an anaerobic tank, a first purification tank, a second purification tank and a third purification tank connected in series, wherein the pretreatment tank is provided with a black water inlet, the first purification tank is provided with a gray water inlet, a stirring mechanism, an aeration component and a photovoltaic component, the aeration component is evenly distributed on the bottom of the tank, the impeller of the stirring mechanism rotates while moving up and down in the depth direction of the tank body, the photovoltaic component is arranged on the upper side of the surface of the tank body to avoid the surface of the tank body, the photovoltaic component is electrically connected to the stirring mechanism and the aeration component; an alternating circulation pipeline is arranged between the anaerobic tank and the first purification tank; the second purification tank is provided with an artificial wetland composed of a matrix mixed with straw and wetland plants, the third purification tank is provided with an ozone treatment box and a fine sand filter box, and filter sand with different particle diameters is layered in the fine sand filter box; the sedimentation tank comprises a mud scraper and a high-temperature cake making component arranged on the outside of the sedimentation tank.
[0005] Optionally, the third purification tank further includes a detection device and a circulation pump, the circulation pump is signal-connected to the detection device, and the output end of the circulation pump is connected to the grey water inlet; the detection device includes a pH detector, an organic carbon content detector, and a microbial detector.
[0006] Optionally, the wetland plants include: Iris calamus, and / or, Canna indica; the matrix also includes: biochar, and / or, waste wood.
[0007] Optionally, the pretreatment tank includes a first grid, a second grid, and a third grid, the first grid is cross-connected with the second grid, the third grid is parallel to the first grid, and the gap spacing of the third grid is smaller than the gap spacing of the first grid.
[0008] Optionally, it also includes a gas collecting device, which is electrically connected to the photovoltaic module, and the gas collecting device is distributed above the pretreatment tank, the sedimentation tank, the first purification tank, the second purification tank, and the third purification tank, and the anaerobic tank is sealed.
[0009] Optionally, the first grid and the second grid connecting body are connected to a slide rail to move and send particles in the depth direction of the pool body.
[0010] The beneficial effects of the utility model are:
[0011] The six-stage courtyard ecological sewage treatment reactor provided by the utility model includes a pretreatment tank, a sedimentation tank, an anaerobic tank, a first purification tank, a second purification tank and a third purification tank connected in series, and black water is input from the pretreatment tank and gray water is input from the first purification tank respectively, so as to avoid mixing of black water and gray water, thereby reducing the processing pressure of the pretreatment tank, the sedimentation tank and the anaerobic tank for treating black water, and improving the efficiency of black water treatment. At the same time, a stirring mechanism, an aeration component and a photovoltaic component are set in the low-pressure purification tank, and the photovoltaic component is used to supply power to the stirring component and the aeration component, so as to realize the self-power supply of the system, and at the same time, the oxygen content in the first purification tank is supplemented by stirring and aeration, so as to provide a sufficient oxygen environment for the purification materials added thereto, and improve the purification efficiency. Among them, part of the liquid between the anaerobic tank and the first purification tank is alternately circulated, that is, part of the liquid treated in the first purification tank is deoxygenated and then returned to the anaerobic tank, so as to realize the alternation of nitrification and denitrification, and improve the sewage purification efficiency. In addition, the second purification tank uses artificial wetlands for purification, and the third purification tank removes the odor of sewage through ozone, and uses fine sand for filtration and purification again, which not only purifies the sewage but also realizes natural nourishment of the courtyard greening.
[0012] The courtyard ecological sewage treatment reactor provided by the utility model is composed of a six-section structure, which not only has a simple structure, is easy to manufacture, has low investment, and is not easy to be blocked, but the power energy of the entire device is supplied by solar panels, the operating cost is low, and it can be automatically operated without the need for special operation. The treated water can be used for farmland irrigation or watering courtyard plants, which not only solves the problem of scattered farmers and difficulty in centralized sewage treatment, but also the planted plants can increase the courtyard landscape, that is, the ecological utilization of sewage is achieved while sewage is treated, thereby improving the efficiency and economy of sewage treatment. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 A front schematic diagram of a six-stage courtyard ecological sewage treatment reactor provided in an embodiment of the present application is shown;
[0014] Figure 2 A schematic top view of a six-stage courtyard ecological sewage treatment reactor provided in an embodiment of the present application is shown;
[0015] Figure 3 A schematic diagram showing the relative positions of the first grid, the second grid and the third grid in the embodiment of the present application.
[0016] Reference numerals:
[0017] 1: Black water inlet; 2: Grey water inlet; 3: Photovoltaic module; 4: Aeration fan; 5: Wetland plants; 6: Water outlet; 7: Third purification tank; 8: Matrix; 9: First purification tank; 10: Aeration disk; 11: Anaerobic tank; 101: First grid, 102: Second grid; 103: Third grid. DETAILED DESCRIPTION
[0018] The technical solutions in the application embodiments will be described clearly and completely below in conjunction with the accompanying drawings in the application embodiments. In addition, the phrases "in one embodiment" or "in an embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics may be combined in one or more embodiments in any suitable manner.
[0019] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the article or terminal device including the elements.
[0020] Most domestic sewage treatment processes are concentrated first and then treated in a specific sewage treatment plant. In the collection process, for the convenience of collection, no distinction is made between black water and gray water. All sewage is directly mixed together, and then the collected sewage is uniformly treated as black water, and then goes through septic tanks, sedimentation, microbial purification, filtration and other treatments in sequence. Finally, the treated water is discharged into the natural environment when it meets the discharge standards. This centralized treatment method, on the one hand, does not distinguish between gray water and black water, and the overall treatment cycle is long and the treatment cost is high. On the other hand, it is only suitable for cities with relatively dense populations. For areas with relatively dispersed populations, such as rural areas or sparsely populated mountainous areas, the centralized accumulation and regular treatment method has low treatment efficiency and is likely to affect the living environment of residents. Therefore, there is an urgent need for a miniaturized and integrated sewage treatment reactor.
[0021] The utility model provides a six-stage courtyard ecological sewage treatment reactor, comprising a pretreatment tank, a sedimentation tank, an anaerobic tank 11, a first purification tank 9, a second purification tank, and a third purification tank 7 connected in series, wherein the pretreatment tank is provided with a black water inlet 1, the first purification tank 9 is provided with a gray water inlet 2, a stirring mechanism, an aeration component, and a photovoltaic component 3, the aeration component is evenly distributed on the bottom of the tank, the impeller of the stirring mechanism rotates while moving up and down in the depth direction of the tank body, the photovoltaic component 3 is arranged on the upper side of the surface of the tank body to avoid the surface of the tank body, and the photovoltaic component 3 is electrically connected to the stirring mechanism and the aeration component; an alternating circulation pipeline is arranged between the anaerobic tank 11 and the first purification tank 9, and is arranged to alternately circulate part of the liquid between each other for a preset number of times; the second purification tank is provided with an artificial wetland composed of a substrate 8 mixed with straw and wetland plants 5, the third purification tank 7 is provided with an ozone treatment box and a fine sand filter box, and filter sands with different particle diameters are layered in the fine sand filter box; the sedimentation tank comprises a mud scraper and a high-temperature cake-making component arranged outside the sedimentation tank, and the sludge flows out from the mud outlet and enters the high-temperature cake-making component for treatment to obtain cake material.
[0022] like Figure 1 and Figure 2As shown, the six-stage courtyard ecological sewage treatment reactor provided by the utility model includes a pretreatment tank, a sedimentation tank, an anaerobic tank 11, a first purification tank 9, a second purification tank and a third purification tank 7 connected in series, and black water is input from the pretreatment tank and gray water is input from the first purification tank 9 respectively, so as to avoid mixing black water and gray water, thereby reducing the processing pressure of the pretreatment tank, sedimentation tank and anaerobic tank 11 for treating black water, and improving the efficiency of black water treatment. At the same time, a stirring mechanism, an aeration component and a photovoltaic component 3 are set in the low purification tank, and the photovoltaic component 3 is used to supply power to the stirring component and the aeration component, so as to realize the self-power supply of the system, and at the same time, the oxygen content in the first purification tank 9 is supplemented by stirring and aeration, so as to provide a sufficient oxygen environment for the purification materials added thereto, and improve the purification efficiency. Among them, part of the liquid between the anaerobic tank 11 and the first purification tank 9 is alternately circulated, that is, part of the liquid treated by the first purification tank 9 is deoxygenated and then returned to the anaerobic tank 11, so as to realize the alternation of nitrification and denitrification, and improve the sewage purification efficiency. In addition, the second purification tank uses artificial wetlands for purification, and the third purification tank 7 removes the odor of sewage through ozone and uses fine sand for filtration and purification again, which not only purifies the sewage but also realizes the natural nourishment of the courtyard greening.
[0023] Among them, the aforementioned aeration component includes an aeration fan 4 and an aeration plate 10. The aeration fan 4 is arranged on one side of the photovoltaic component 3. The electricity generated by the photovoltaic component 3 supplies power to the aeration fan 4. The air blown out by the aeration fan 4 is blown out from the aeration plate 10 arranged on the bottom of the first purification tank 9 and the side wall of the tank body. The aeration plate 10 can also be arranged to rotate rapidly. The rotation process can drive water flow fluctuations, which can further promote the integration of oxygen into the tank body.
[0024] The courtyard ecological sewage treatment reactor provided by the utility model is composed of a six-section structure, which not only has a simple structure, is easy to manufacture, has low investment, and is not easy to be blocked, but the power energy of the entire device is supplied by solar panels, the operating cost is low, and it can be automatically operated without the need for special operation. The treated water can be used for farmland irrigation or watering courtyard plants, which not only solves the problem of scattered farmers and difficulty in centralized sewage treatment, but also the planted plants can increase the courtyard landscape, that is, the ecological utilization of sewage is achieved while sewage is treated, thereby improving the efficiency and economy of sewage treatment.
[0025] In addition, the scraper in the sedimentation tank removes the sludge to the high-temperature cake-making assembly outside the sedimentation tank, dehydrates the sludge and presses it into cakes, which can be crushed and used as fertilizer for green plants. Anaerobic and aerobic multi-stage reactions occur alternately, and nitrification and denitrification will be enhanced, improving the purification efficiency in artificial wetlands. The rotating impeller of the stirring mechanism drives the sewage to fluctuate to absorb more oxygen in the air. Considering the depth of the tank body, in order to increase the stirring effect, the stirring impeller can be set to shift the rotating position along the depth direction of the tank body to increase the stirring effect.
[0026] Among them, the aforementioned wetland plants 5 may include: yellow calamus, and / or, canna and other wetland plants 5 with developed root systems and strong water purification capabilities; the aforementioned matrix 8 may also include: biochar, and / or, waste wood, with a single type as the matrix 8, or different types thereof can be selected and mixed as the matrix 8, and this embodiment does not impose specific restrictions on this.
[0027] The operation process of the sewage treatment reactor provided by the utility model is as follows: Figure 1 and Figure 2 As shown, the black water first enters the pretreatment tank, sedimentation tank and anaerobic tank 11 in the reactor for filtration, sedimentation and anaerobic fermentation, and then enters the first purification tank 9 for aeration. At the same time, it is equipped with solar panels to provide electricity for the fan, and then enters the second purification tank, which is the ecological artificial wetland. After the sewage is filtered by the subsurface wetland, the pollutants are removed by plant absorption and degradation by root microorganisms. Then it flows through the surface flow of the clear water tank to replenish the oxygen in the system and promote the nitrification and denitrification process. Finally, the sewage treated by the third purification tank 7 flows out from the outlet 6 on the side of the third purification tank 7. Because the treated water meets the discharge requirements, it can be reused for daily miscellaneous purposes, such as flushing toilets and mopping the floor, etc. It can also be used for irrigation of vegetable fields and orchards, or it can be directly discharged into the river. The ecological sewage treatment reactor effectively removes NH3-N, TP and COD in sewage.
[0028] The utility model realizes the separation of black water and gray water through the layout of courtyard sewage collection pipes, which is compatible with the living environment in rural areas; through the setting of artificial wetlands, a natural landscape is formed, which is naturally integrated with the farmer's vegetable fields, orchards and other areas. The system design process is simple, practical, stable and easy to operate; and the cost is low. The whole system has no electricity and energy consumption. During daily operation and maintenance, it only needs to be cleaned and maintained regularly, without additional maintenance costs, and has high practical application and promotion value.
[0029] The black water uses anaerobic microorganisms in the pretreatment tank, sedimentation tank and anaerobic tank 11 to decompose pollutants in the sewage into small molecular organic matter, thereby improving the biodegradability of the sewage. The black water then enters the aerobic tank to remove nitrogen-containing organic matter in the sewage through nitrification and other processes.
[0030] This system can be set up in the farmer's courtyard or in front of or behind the house to collect black water and gray water (where gray water is directly discharged into the first purification tank 9) generated in the farmer's daily life for subsequent purification treatment. This patent can also be used as a back-end supporting toilet reform, including a series of processes such as courtyard sewage collection, anaerobic and aerobic reaction treatment, ecological wetland purification, and reuse irrigation, to promote the decentralized management and resource utilization of rural domestic sewage.
[0031] In some embodiments, the third purification tank 7 further includes a detection device and a circulation pump, the circulation pump is connected to the detection device by signal, and the output end of the circulation pump is connected to the gray water inlet 2; the detection device includes a pH detector, an organic carbon content detector, and a microbial detector. In this embodiment, the pH value, organic carbon content, and content and type of microorganisms of the sewage in the third purification tank 7 can be obtained through the pH detector, the organic carbon content detector, and the microbial detector, and whether the sewage needs to be recycled and reprocessed is determined based on the detection value. The function of the circulation pump is to pump the treated water of the third purification tank 7 to the gray water inlet 2 of the first purification tank 9.
[0032] In other embodiments, the aforementioned pretreatment tank may include a first grid 101, a second grid 102, and a third grid 103. The first grid 101 is cross-connected with the second grid 102, the third grid 103 is parallel to the first grid 101, and the gap spacing of the third grid 103 is smaller than the gap spacing of the first grid 101; the first grid 101 and the second grid 102 are connected to a slide rail to move and transport particulate matter in the depth direction of the tank body.
[0033] like Figure 3 As shown, the grid is used to filter the particles in the black water in the pretreatment tank. In order to prevent the grid from being too fine and causing blockage, at least two rows of grids are set, and the first grid that contacts the black water is the first grid 101 and the second grid 102 that cross each other. The cross can prevent some particles from flowing out in the length direction of the grid. These particles enter the third grid 103 and easily cause the third grid 103 to be blocked. The cross setting can make up for the disadvantage that the grid cannot be blocked in the length direction. Of course, the number of grids can also be increased or decreased according to the actual size range of particles in the black water. This embodiment does not make specific restrictions on this, and the corresponding number changes are all within the protection scope of this embodiment.
[0034] In some embodiments, a gas collecting device is also included, which is electrically connected to the photovoltaic module 3 and is distributed on the pretreatment tank, the sedimentation tank, the first purification tank 9, the second purification tank, and the third purification tank 7. The anaerobic tank 11 is sealed. In this embodiment, considering that if the water in each pool is exposed to the outside during the sewage treatment process, the odor in the sewage during the treatment process will affect the living environment of the residents, a gas collecting device is set on the pretreatment tank, the sedimentation tank, the first purification tank 9, the second purification tank, and the third purification tank 7 to collect and purify the volatile gas in the sewage to protect the living environment. The gas collecting device can use an existing mature gas purification device, which will not be described in detail in this embodiment.
[0035] Finally, the utility model provides a six-stage courtyard ecological sewage treatment reactor including a pretreatment tank, a sedimentation tank, an anaerobic tank 11, a first purification tank 9, a second purification tank, and a third purification tank 7 connected in series. The pretreatment tank is provided with a black water inlet 1, the first purification tank 9 is provided with a gray water inlet 2, a stirring mechanism, an aeration component and a photovoltaic component 3, the aeration component is evenly distributed on the bottom of the tank, the impeller of the stirring mechanism rotates while moving up and down in the depth direction of the tank body, the photovoltaic component 3 is arranged on the upper side of the surface of the tank body to avoid the surface of the tank body, and the photovoltaic component 3 is electrically connected to the stirring mechanism and the aeration component; an alternating circulation pipeline is provided between the anaerobic tank 11 and the first purification tank 9; the second purification tank is provided with an artificial wetland composed of a matrix 8 and wetland plants 5, the third purification tank 7 is provided with an ozone treatment box and a fine sand filter box, and the sedimentation tank includes a scraper and a high-temperature cake making component arranged on the outside of the sedimentation tank. The utility model does not require energy consumption and operating costs. It is a decentralized sewage treatment device that integrates sewage treatment, courtyard environmental beautification and tail water resource utilization. It realizes ecological utilization of sewage while treating sewage, and improves the efficiency and economy of sewage treatment.
[0036] It should be noted that the above embodiments all belong to the same utility model concept, and the description of each embodiment has its own focus. For the parts not described in detail in individual embodiments, reference can be made to the description in other embodiments. Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the embodiments can be referred to each other.
[0037] The above embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A six-stage courtyard ecological sewage treatment reactor, characterized in that: The invention comprises a pretreatment tank, a sedimentation tank, an anaerobic tank (11), a first purification tank (9), a second purification tank and a third purification tank (7) connected in series, wherein the pretreatment tank is provided with a black water inlet (1), the first purification tank (9) is provided with a gray water inlet (2), a stirring mechanism, an aeration component and a photovoltaic component (3), wherein the aeration component is evenly distributed on the bottom of the tank, and the impeller of the stirring mechanism moves up and down in the depth direction of the tank body while rotating, the photovoltaic component (3) is arranged on the upper side of the surface of the tank body to avoid the surface of the tank body, and the photovoltaic component (3) is electrically connected to the stirring mechanism and the aeration component; an alternating circulation pipeline is arranged between the anaerobic tank (11) and the first purification tank (9); the second purification tank is provided with an artificial wetland composed of a matrix (8) mixed with straw and wetland plants (5); the third purification tank (7) is provided with an ozone treatment box and a fine sand filter box, and filter sand with different particle diameters is layered in the fine sand filter box; the sedimentation tank comprises a scraper and a high-temperature cake making component arranged outside the sedimentation tank.
2. The six-stage courtyard ecological sewage treatment reactor according to claim 1 is characterized in that: The third purification tank (7) further comprises a detection device and a circulation pump, wherein the circulation pump is signal-connected to the detection device, and the output end of the circulation pump is connected to the grey water inlet (2); the detection device comprises a pH detector, an organic carbon content detector, and a microbial detector.
3. The six-stage courtyard ecological sewage treatment reactor according to claim 1 is characterized in that: The wetland plants (5) include: Iris calamus and / or Canna indica; the substrate (8) also includes: biochar and / or waste wood.
4. The six-stage courtyard ecological sewage treatment reactor according to claim 1 is characterized in that: The pretreatment tank comprises a first grid (101), a second grid (102), and a third grid (103); the first grid (101) and the second grid (102) are cross-connected; the third grid (103) is parallel to the first grid (101); and the gap spacing of the third grid (103) is smaller than the gap spacing of the first grid (101).
5. The six-stage courtyard ecological sewage treatment reactor according to claim 4 is characterized in that: It also includes a gas collecting device, which is electrically connected to the photovoltaic module (3). The gas collecting device is distributed on the pretreatment tank, the sedimentation tank, the first purification tank (9), the second purification tank, and the third purification tank (7). The anaerobic tank (11) is sealed.
6. The six-stage courtyard ecological sewage treatment reactor according to claim 4 is characterized in that: The first grid and the second grid connecting body are connected to the slide rail to move and transport the particles in the depth direction of the pool body.