Ecological purification system for treating rural sewage

Abstract

The utility model relates to an ecological purification system for treating rural sewage, which comprises an intercepting pond, a treating pond and a water collecting pond, the treating pond is arranged between the intercepting pond and the water collecting pond, a filtering piece for intercepting impurities in sewage is arranged in the intercepting pond, a water inlet pipe communicated with the interior of the treating pond is arranged at the bottom of the intercepting pond, and a water outlet pipe communicated with the interior of the treating pond is arranged in the water collecting pond. Activated sludge and an aeration assembly for increasing sewage oxygen are arranged in the treatment pond, a water suction pump is mounted between the treatment pond and the water collecting pond, a water suction pipe is connected to the water suction end of the water suction pump and arranged in the treatment pond, and the water drainage end of the water suction pump faces the water collecting pond; a drainage pipe is arranged on one side of the water collecting tank. The application has the effect of improving the applicability of the ecological purification system.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment technology, and in particular to an ecological purification system for treating rural wastewater. Background Technology

[0002] In order to reduce the pollution of drinking water sources, rivers and lakes, soil and agricultural products by rural domestic sewage, and to reduce water environment risks and the possibility of disease transmission, it is necessary to treat sewage.

[0003] Chinese Patent No. CN222498889U discloses an ecological treatment device for rural domestic sewage, comprising a first ecological treatment component and a second ecological treatment component. The first ecological treatment component includes a first sedimentation tank, an aerobic tank, and a second sedimentation tank arranged sequentially and connected along the sewage flow direction. The first sedimentation tank has an inlet facing the sewage inflow direction. The top surface of the second ecological treatment component is open, and the second ecological treatment component encloses a first receiving space planted with wetland plants. The second sedimentation tank is connected to the first receiving space via a connecting pipe at its opposite end from the sewage inflow direction. A sludge discharge outlet is provided at the bottom of the first sedimentation tank, which is connected to an external sludge pump via a sludge pipe. The first sedimentation tank is equipped with a sludge scraping element, which is used to adhere to the side wall of the first sedimentation tank and can rotate within the first sedimentation tank. This utility model aims to provide an ecological treatment device for rural domestic sewage that can promptly clean the sludge adhering to the sedimentation tank.

[0004] Regarding the aforementioned technologies, existing technologies utilize a first ecological treatment component and a second ecological treatment component to treat wastewater. Both the first and second ecological treatment components treat wastewater through sedimentation. As a result, a large amount of sludge accumulates in the first and second sedimentation tanks and the aerobic tank. Because the first ecological treatment component is a cylindrical, closed cylindrical structure, a large amount of sludge and water remains in the three internal tanks, which is difficult to drain. This increases the difficulty of cleaning the sludge and water inside the first ecological component and reduces the applicability of the wastewater ecological treatment device. Summary of the Invention

[0005] To improve the applicability of ecological purification systems, this application provides an ecological purification system for treating rural sewage.

[0006] The ecological purification system for treating rural sewage provided in this application adopts the following technical solution:

[0007] An ecological purification system for treating rural sewage includes an interception tank, a treatment tank, and a collection tank. The treatment tank is located between the interception tank and the collection tank. The interception tank is equipped with filters for intercepting impurities in the sewage. An inlet pipe is located at the bottom of the interception tank, connecting to the interior of the treatment tank. The treatment tank contains activated sludge and an aeration assembly to increase oxygen in the sewage. A water pump is installed between the treatment tank and the collection tank. The pump's pumping end is connected to a pumping pipe located inside the treatment tank. The pump's discharge end faces the collection tank. A drain pipe is located on one side of the collection tank.

[0008] By adopting the above technical solution, during wastewater purification, wastewater is poured into the interception tank, where impurities are intercepted by the filter elements. The wastewater then enters the treatment tank through the inlet pipe and mixes with activated sludge. Aeration components increase the oxygen content in the wastewater, enhancing the activity of the activated sludge and decomposing organic matter in the wastewater to meet discharge standards. Finally, a pump draws the purified water into a collection tank for convenient access. By setting up the interception tank, treatment tank, and collection tank, all three tanks are open structures, allowing for the removal of impurities or sludge at any time. Compared to existing technologies, this reduces sludge accumulation and removal difficulty, improving the applicability of the ecological purification system.

[0009] Optionally, the filter element is a filter screen, a limiting edge is connected inside the interception pool, the filter element is placed on the limiting edge, and a lifting assembly for driving the filter element to move is provided on the interception pool.

[0010] By adopting the above technical solution, the filter element is placed on the limiting edge. When sewage washes over the filter element, impurities are trapped on it, and the filtered sewage enters the treatment tank through the inlet pipe. When cleaning impurities, the filter element can be moved out of the interception tank by the lifting assembly, making it easy to clean the impurities.

[0011] Optionally, the aeration assembly includes an aeration blower, a main air pipe, a distribution air pipe, and nozzles. A connecting frame is connected to the treatment tank. The aeration blower is installed on the fixed frame. The main air pipe is connected to the exhaust end of the aeration blower. Several distribution air pipes are connected to the bottom end of the main air pipe. Several nozzles are connected to the distribution air pipes.

[0012] By adopting the above technical solution, during aeration, the aeration blower is started, allowing air to enter the sewage in sequence through the main air pipe, the branch air pipe and the nozzle, appearing in the form of bubbles, which increases the contact area between air and sewage, thereby increasing the oxygen content of the sewage.

[0013] Optionally, the main air pipe includes a connecting pipe and a rotating pipe. The connecting pipe is connected to the exhaust end of the aeration blower. The rotating pipe is rotatably connected to the end of the connecting pipe through a sealed bearing. The air distribution pipe is connected to the rotating pipe. The treatment tank is provided with a rotating assembly that drives the rotating pipe to rotate.

[0014] By adopting the above technical solution and setting a rotating component, the rotating pipe rotates, which in turn drives the air distribution pipe to rotate, so that air can come into contact with the sewage at various positions in the sewage as much as possible, further increasing the contact area between air and sewage per unit time.

[0015] Optionally, the inlet end of the water pumping pipe is provided with filter cotton and an installation assembly. The installation assembly includes connecting ropes and connecting posts. An installation frame is connected to the filter cotton. Several connecting ropes are connected to the installation frame. Several connecting posts are connected to the water pumping pipe. Each connecting post corresponds to a connecting rope. The connecting rope is sleeved on the connecting post. The filter cotton covers the water pumping pipe.

[0016] By employing the above technical solution, activated sludge decomposes organic matter in wastewater. After purification, sludge residue remains, posing a possibility of sludge clogging the water pump during pumping. To address this, filter cotton is placed over the pumping pipe, and connecting ropes are wound around connecting posts to restrict frame movement, thus achieving the desired filter cotton installation. By using filter cotton, sludge is effectively prevented from entering the water pump, reducing the likelihood of clogging.

[0017] Optionally, the bottom of the treatment tank is provided with a collection box and a limiting member that restricts the position of the collection box. The top of the collection box is provided with a clearance channel that communicates with the interior of the collection box. One side is open. A movable pipe is slidably fitted on the water pump pipe. The filter cotton is installed on the movable pipe. The movable pipe is located in the clearance channel.

[0018] By adopting the above technical solution, when the water pump draws up sewage, the sludge is blocked by the filter cotton and accumulates near the pumping pipe. By setting up a collection box, the sludge blocked by the filter cotton will remain in the collection box, and finally, only the collection box needs to be removed to clean the sludge, which reduces the cleaning difficulty of the treatment tank.

[0019] Optionally, a float plate is slidably fitted at the opening end of the collection box, and a limiting strip is connected to the bottom end of the float plate. In the initial state, the float plate covers the opening end of the collection box.

[0020] By adopting the above technical solution, when the collection box is installed at the bottom of the treatment tank by the limiting member, the float rises under the influence of buoyancy until the limiting bar touches the top wall inside the collection box to open the collection box; during the sewage extraction process, the float descends with the horizontal plane until the sewage is completely extracted. At this time, the float covers the outlet of the collection box to prevent sludge from flowing out.

[0021] Optionally, the lifting assembly includes a lifting screw, a limiting rod, and a connecting frame. The connecting frame is connected to the filter element, and several limiting rods are vertically connected to the connecting frame. The limiting rods are slidably engaged with the interception pool, and the lifting screw is vertically rotatably connected to the interception pool and threadedly engaged with the connecting frame.

[0022] By adopting the above technical solution, when cleaning impurities, rotating the lifting screw, restricted by the limiting rod, causes the connecting frame to move, which in turn drives the filter element to rise until the filter element is removed from the interception pool, thus achieving the effect of facilitating the cleaning of impurities by staff.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. During wastewater purification, wastewater is poured into the interception tank, where impurities are intercepted by the filter elements. The wastewater then enters the treatment tank through the inlet pipe, where it mixes with activated sludge. Aeration components increase the oxygen content in the wastewater, enhancing the activity of the activated sludge and decomposing organic matter to meet discharge standards. Finally, a pump draws the purified water into a collection tank for easy access. By setting up the interception tank, treatment tank, and collection tank, all three are open structures, allowing for the removal of impurities or sludge at any time. Compared to existing technologies, this reduces sludge accumulation and removal difficulty, improving the applicability of the ecological purification system.

[0025] 2. When installing the filter cotton, cover the water pump pipe with the filter cotton and wrap the connecting rope around the connecting post to restrict the movement of the installation frame and achieve the desired effect of filter cotton installation. By setting up the filter cotton, sludge is effectively prevented from entering the water pump, reducing the possibility of water pump blockage. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the ecological purification system in the embodiments of this application.

[0027] Figure 2 This is an exploded view used in the embodiments of this application to illustrate the structure of the interception pool and the lifting component.

[0028] Figure 3 This is a cross-sectional view used in the embodiments of this application to illustrate the structure of the aeration component and the rotating component.

[0029] Figure 4This is a cross-sectional view of the structure of the water pump and the collection box in the embodiments of this application.

[0030] Figure 5 This is a schematic diagram of the structure of the filter cotton and the installation components in the embodiments of this application.

[0031] Figure 6 This is a cross-sectional view used in the embodiments of this application to illustrate the internal structure of the collection box.

[0032] Explanation of reference numerals in the attached drawings: 1. Interception pool; 11. Restriction edge; 12. Filter element; 13. Treatment pool; 14. Collection pool; 2. Lifting assembly; 21. Lifting screw; 22. Restriction rod; 23. Connecting frame; 3. Aeration assembly; 31. Aeration blower; 32. Main air pipe; 321. Connecting pipe; 322. Rotating pipe; 33. Distribution air pipe; 34. Nozzle; 4. Rotating assembly; 41. Rotating motor; 42. Rotating shaft; 43. Drive gear; 44. Connecting gear ring; 5. Water pump; 51. Water pumping pipe; 52. Moving pipe; 6. Filter cotton; 7. Installation assembly; 71. Connecting rope; 72. Connecting column; 8. Collection box; 81. Clearance channel; 82. Float; 83. Restriction strip; 9. Restriction element. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0034] This application discloses an ecological purification system for treating rural sewage. (Refer to...) Figure 1 The ecological purification system for treating rural sewage includes an interception pool 1, a treatment pool 13, and a collection pool 14. The interception pool 1, the treatment pool 13, and the collection pool 14 are all rectangular in shape. The treatment pool 13 is fixedly connected between the interception pool 1 and the collection pool 14. A drainage pipe is installed on the collection pool 14.

[0035] Reference Figure 2 The interception pool 1 has four fixedly connected limiting edges 11 at its four corners, and filter elements 12, which are filter screens, are placed on the limiting edges 11. A lifting assembly 2 is provided on the interception pool 1, which includes a lifting screw 21, limiting rods 22, and a connecting frame 23. The connecting frame 23 is fixedly connected to the filter elements 12, and several limiting rods 22 are vertically fixedly connected to the connecting frame 23; in this embodiment, two rods are used as an example. The limiting rods 22 pass through the interception pool 1 and are slidably engaged with it. The lifting screw 21 is vertically rotatably connected to the interception pool 1 and threadedly engaged with the connecting frame 23. A water inlet pipe connects the bottom of the interception pool 1 to the interior of the treatment pool 13.

[0036] When intercepting impurities in wastewater, wastewater is poured into the interception tank 1, where impurities are intercepted on the filter element 12. The remaining wastewater then flows smoothly into the treatment tank 13 through the inlet pipe, thus achieving the effect of intercepting impurities in the wastewater. When cleaning impurities, the lifting screw 21 is rotated to raise the connecting frame 23, which in turn raises the filter element 12 until it is removed from the interception tank 1, thus cleaning the impurities on the filter element 12.

[0037] Reference Figure 3 The treatment tank 13 is equipped with activated sludge and an aeration assembly 3. The aeration assembly 3 includes an aeration blower 31, a main air pipe 32, a distribution air pipe 33, and nozzles 34. A fixed frame is fixedly connected to the treatment tank 13, and the aeration blower 31 is mounted on the fixed frame. The main air pipe 32 includes a connecting pipe 321 and a rotating pipe 322. The connecting pipe 321 is fixedly connected to the air outlet end of the aeration blower 31, and the rotating pipe 322 is vertically rotatably connected to the connecting pipe 321 through a sealed bearing. Several distribution air pipes 33 are horizontally fixedly connected to the bottom end of the rotating pipe 322. In this embodiment, four pipes are used as an example. Several nozzles 34 are installed on the distribution air pipes 33.

[0038] Reference Figure 3 A rotating assembly 4 is provided on the connecting frame 23. The rotating assembly 4 includes a rotating motor 41, a rotating shaft 42, a driving gear 43, and a connecting gear ring 44. The rotating shaft 42 is vertically rotatably connected to the fixed frame. The rotating motor 41 is mounted on the fixed frame and coaxially connected to the top end of the rotating shaft 42. The driving gear 43 is fixedly connected to the bottom end of the rotating shaft 42. The connecting gear ring 44 is fixedly connected to the rotating tube 322 and meshes with the driving gear 43.

[0039] During aeration, the aeration blower 31 is started, allowing air to pass through the main air pipe 32, the branch air pipe 33, and the nozzle 34, contacting the sewage in the form of bubbles. At the same time, the rotating motor 41 is started, causing the rotating shaft 42 to rotate, the drive gear 43 to rotate, driving the connecting gear ring 44 to rotate, and the rotating pipe 322 to rotate, driving the branch air pipe 33 to rotate. This allows more bubbles to contact the sewage per unit time, increasing the activity of the activated sludge to decompose the organic matter in the sewage and achieving the effect of aerating the sewage.

[0040] Reference Figure 4 and Figure 5 A water pump 5 is installed between the treatment tank 13 and the collection tank 14. A water pump pipe 51 is fixedly connected to the pump's suction end. A movable pipe 52 is vertically slidably fitted onto the suction pipe 51, with its discharge end facing the collection tank 14. A filter cotton 6 and an installation assembly 7 are provided at the bottom of the movable pipe 52. The installation assembly 7 includes a connecting rope 71 and connecting posts 72. A connecting frame is fixedly connected to the filter cotton 6. The connecting frame is rectangular, and one connecting rope 71 is fixedly connected to each of the four corners of the connecting frame. Four connecting posts 72 are fixedly connected to the movable pipe 52, and the connecting ropes 71 are wound around the connecting posts 72. The filter cotton 6 covers the bottom of the movable pipe 52.

[0041] Reference Figure 4 and Figure 6 A collection box 8 and a limiting member 9 are provided on the bottom wall of the treatment pool 13. An avoidance channel 81 is opened at the top of the collection box 8, and the moving tube 52 enters the avoidance channel 81. An opening is provided on one side of the collection box 8, and a float 82 is vertically slidably fitted on the collection box 8. A limiting strip 83 is fixedly connected to the bottom end of the float 82.

[0042] Reference Figure 4 The limiting component 9 is an L-plate. One of the limiting components 9 is fixedly connected to each of the thirteen sides of the corresponding mobile phone box on the bottom wall of the processing pool 13. The collection box 8 is located between the three limiting components 9.

[0043] Before pumping, place the collection box 8 between the three limiting pieces 9 and the moving pipe 52 into the clearance channel 81. When pumping, the float 82 rises due to buoyancy until the limiting strip 83 touches the top wall inside the collection box 8. Then, start the pump 5. The sewage enters the collection tank 14 through the filter cotton 6 and the pump 5. During this process, the sludge is intercepted by the filter cotton 6 and remains in the collection box 8 until the sewage is pumped out. Then, the float 82 descends and covers the outlet of the collection box 8. The collection box 8 can then be removed to clean the sludge.

[0044] The implementation principle of an ecological purification system for treating rural sewage according to an embodiment of this application is as follows: When purifying sewage, sewage is poured into the interception tank 1, where impurities in the sewage are intercepted on the filter element 12. The sewage then enters the treatment tank 13. The aeration blower 31 and the rotating motor 41 are started, and air enters the sewage through the nozzle 34. At the same time, the drive gear 43 drives the rotating pipe 322 to rotate, causing bubbles to be generated at multiple locations in the sewage. After aeration for a period of time, the water pump 5 is started, and the purified sewage enters the collection tank 14. The sludge is intercepted in the collection box 8, thus achieving the effect of purifying sewage.

[0045] During maintenance, rotate the lifting screw 21 to raise the connecting frame 23, which in turn raises the filter element 12 until it is removed from the interception pool 1. At the same time, the collection box 8 can be removed to remove impurities and sludge.

[0046] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An ecological purification system for treating rural wastewater, characterized in that: The system includes an interception tank (1), a treatment tank (13), and a collection tank (14). The treatment tank (13) is located between the interception tank (1) and the collection tank (14). The interception tank (1) is equipped with a filter element (12) for intercepting impurities in the sewage. The bottom of the interception tank (1) is provided with an inlet pipe that connects to the inside of the treatment tank (13). The treatment tank (13) is provided with activated sludge and an aeration component (3) for increasing oxygen in the sewage. A water pump (5) is installed between the treatment tank (13) and the collection tank (14). The pumping end of the water pump (5) is connected to a pumping pipe (51). The pumping pipe (51) is located inside the treatment tank (13). The draining end of the water pump (5) faces the collection tank (14). A drain pipe is provided on one side of the collection tank (14).

2. The ecological purification system for treating rural sewage according to claim 1, characterized in that: The filter element (12) is a filter screen plate. A limiting edge (11) is connected inside the interception pool (1). The filter element (12) is placed on the limiting edge (11). A lifting assembly (2) for driving the filter element (12) to move is provided on the interception pool (1).

3. The ecological purification system for treating rural sewage according to claim 1, characterized in that: The aeration assembly (3) includes an aeration blower (31), a main air pipe (32), a distribution air pipe (33), and nozzles (34). A fixed frame is connected to the treatment tank (13). The aeration blower (31) is installed on the fixed frame. The main air pipe (32) is connected to the exhaust end of the aeration blower (31). Several distribution air pipes (33) are connected to the bottom end of the main air pipe (32). Several nozzles (34) are connected to the distribution air pipes (33).

4. The ecological purification system for treating rural sewage according to claim 3, characterized in that: The main air pipe (32) includes a connecting pipe (321) and a rotating pipe (322). The connecting pipe (321) is connected to the exhaust end of the aeration blower (31). The rotating pipe (322) is rotatably connected to the end of the connecting pipe (321) through a sealed bearing. The air distribution pipe (33) is connected to the rotating pipe (322). The treatment tank (13) is provided with a rotating assembly (4) that drives the rotating pipe (322) to rotate.

5. The ecological purification system for treating rural wastewater according to claim 1, characterized in that: The inlet end of the water pump (51) is provided with a filter cotton (6) and an installation assembly (7). The installation assembly (7) includes a connecting rope (71) and a connecting post (72). An installation frame is connected to the filter cotton (6). Several connecting ropes (71) are connected to the installation frame. Several connecting posts (72) are connected to the water pump (51). The connecting posts (72) correspond one-to-one with the connecting ropes (71). The connecting ropes (71) are sleeved on the connecting posts (72). The filter cotton (6) covers the water pump (51).

6. The ecological purification system for treating rural wastewater according to claim 5, characterized in that: The bottom of the treatment tank (13) is provided with a collection box (8) and a limiting member (9) that restricts the position of the collection box (8). The top of the collection box (8) is provided with a clearance channel (81) that connects to the inside of the collection box (8). It is open on one side. A movable pipe (52) is slidably fitted on the water pump (51). The filter cotton (6) is installed on the movable pipe (52). The movable pipe (52) is located in the clearance channel (81).

7. The ecological purification system for treating rural sewage according to claim 6, characterized in that: The collection box (8) has a floating plate (82) slidably fitted at the open end. The bottom end of the floating plate (82) is connected to a limiting strip (83). In the initial state, the floating plate (82) covers the open end of the collection box (8).

8. The ecological purification system for treating rural sewage according to claim 2, characterized in that: The lifting assembly (2) includes a lifting screw (21), a limiting rod (22), and a connecting frame (23). The connecting frame (23) is connected to the filter element (12). Several limiting rods (22) are vertically connected to the connecting frame (23). The limiting rods (22) are slidably engaged with the interception pool (1). The lifting screw (21) is vertically rotatably connected to the interception pool (1) and threadedly engaged with the connecting frame (23).

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