A kind of intercepting system suitable for rural sewage treatment

Abstract

The application belongs to the technical field of sewage treatment, and particularly relates to a interception system suitable for rural sewage treatment, which comprises a drainage channel, a sewage treatment channel and an interception assembly; the drainage channel is connected with the sewage treatment channel, mixed sewage from users, i.e. domestic sewage and rainwater, is introduced into the sewage treatment channel through the drainage channel; the interception assembly comprises a partition plate, the partition plate divides the sewage treatment channel into an upper layer direct discharge area and a lower layer interception area, and the lower layer interception area comprises an interception tank arranged below the sewage treatment channel; the application can effectively reduce pollutants in water, can more accurately control the flow and flow direction of sewage, can adjust the interception water volume according to the water quality of mixed sewage, can make the mixed sewage reach the maximum balance between the treatment volume and the direct discharge volume, can effectively reduce the scale of the rear-end treatment station, can also reduce the subsequent treatment cost, and can enhance the stability and reliability of the overall interception work.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, specifically an interception system suitable for rural wastewater treatment. Background Technology

[0002] The complex terrain in rural areas makes sewage collection and treatment difficult, and most sewage is discharged directly, seriously polluting water bodies.

[0003] The traditional method of using pipe networks and treatment stations to treat sewage in mountainous areas is difficult to construct, costly, and often fails to achieve the expected treatment results. Water quality indicators fluctuate significantly due to rainfall and seasonal water flow. During the dry season, water flow is poor, and pollutants easily accumulate in the pipes. During the rainy season, a large amount of rainwater flows into the sewage collection system, impacting the operation of the treatment station and causing difficulties in its operation.

[0004] Therefore, the present invention provides an interception system suitable for rural sewage treatment. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: the interception system applicable to rural sewage treatment described in the present invention includes a drainage ditch, a sewage treatment ditch and an interception component;

[0007] The drainage ditch is connected to the sewage treatment ditch, through which mixed sewage from users’ domestic sewage and rainwater is introduced into the sewage treatment ditch;

[0008] The interception component is installed in the sewage treatment channel to divert and treat the flowing sewage; the interception component includes a baffle plate that divides the sewage treatment channel into an upper direct discharge area and a lower interception area, the lower interception area forming an interception trough, and the interception trough being connected to the sewage treatment channel through a through channel;

[0009] The drainage ditch and sewage treatment ditch are lined with a volcanic rock filter layer underneath.

[0010] Preferably, it also includes an adjustment component, which includes a detection mechanism and an adjustment mechanism. The detection mechanism includes a T-shaped mounting bracket fixed to the side wall of the sewage treatment channel inlet, and multiple turbidity sensors are fixed at intervals on the vertical rod of the mounting bracket. The adjustment mechanism includes a cylinder fixed to the side wall of the sewage treatment channel. The telescopic rod of the cylinder is vertically upward and a fixing rod is fixed at its top. A connecting rod is fixed at the end of the fixing rod away from the cylinder, and the connecting rod is fixedly connected to the partition.

[0011] Preferably, a mounting base is provided below the partition plate, the mounting base is fixed to the bottom plate of the sewage treatment channel, a sliding groove is provided in the middle of the upper part of the mounting base, a movable plate is slidably arranged inside the sliding groove, the top of the movable plate is fixed below the partition plate, the two ends of the mounting base and the movable plate are respectively attached to the inner walls of the two sides of the sewage treatment channel, and the mounting base and the movable plate are arranged on the side of the intercepting channel away from the drainage channel.

[0012] Preferably, the width of the sewage treatment channel is greater than the width of the drainage channel.

[0013] Preferably, the intercepting channel is fixed to and connected to a sedimentation tank on its side, a drainage pipe is provided on the side of the sedimentation tank, a grid is slidably installed inside the sedimentation tank, and an inspection well cover is provided on the top of the sedimentation tank.

[0014] Preferably, the sewage treatment channel is equipped with a rainwater sensor and a level gauge.

[0015] Preferably, a sedimentation well is provided in the middle of the drainage ditch.

[0016] Preferably, a bottom mesh is provided at the bottom of the drainage ditch and sewage treatment ditch, the volcanic rock filter layer is provided above the bottom mesh, and a pad is provided below the bottom mesh. The pad creates a chamber below the bottom mesh, and an air pipe is laid in the chamber. Nozzles are evenly distributed on the air pipe.

[0017] Preferably, a rain grate is provided above the drainage ditch.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The interception system for rural sewage treatment described in this invention, by setting up structures such as drainage ditches, sewage treatment ditches, and interception components, can effectively reduce pollutants in the water, implement more precise control over the flow rate and direction of sewage, adjust the interception volume according to the water quality of the mixed sewage, so as to achieve the greatest balance between the treatment volume and the direct discharge volume of the mixed sewage, effectively reduce the scale of the downstream treatment station, reduce subsequent treatment costs, and enhance the stability and reliability of the overall interception work.

[0020] 2. The interception system for rural sewage treatment described in this invention, by setting up multiple turbidity sensors, can detect sewage at different depths. Based on the turbidity data detected by the sensors at different heights, the height of the sewage with poor water quality is determined through analysis. The controller controls the operation of the cylinder according to the analysis results. The extension rod of the cylinder drives the fixed rod to move up or down. The fixed rod drives the baffle to adjust its height accordingly through the connecting rod, so that the baffle intercepts part of the sewage with poor water quality and guides it into the interception tank. This allows the sewage with better water quality in the upper layer to be discharged into the water body through the direct discharge zone, achieving more precise diversion and treatment of sewage and improving the sewage treatment effect. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the interception component structure in this invention;

[0024] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a schematic diagram of the vertical cross-sectional structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the present invention;

[0027] Figure 6 This is a top view of the internal structure of the drainage ditch of the present invention.

[0028] In the diagram: 1. Drainage ditch; 2. Sewage treatment ditch; 3. Volcanic rock filter layer; 4. Rain grate; 5. Drainage pipe; 6. Interception trough; 7. Sedimentation trough; 8. Manhole cover; 9. Partition plate; 10. Cylinder; 11. Fixing rod; 12. Connecting rod; 13. Mounting bracket; 14. Turbidity sensor; 15. Mounting base; 16. Movable plate; 17. Rainwater sensor; 18. Level gauge; 19. Sedimentation well; 20. Bottom mesh; 21. Pad block; 22. Air pipe; 23. Sprinkler head; 24. Grille. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0030] Example 1: As Figures 1 to 6 As shown in the figure, an interception system for rural sewage treatment according to an embodiment of the present invention includes a drainage ditch 1, a sewage treatment ditch 2, and an interception component;

[0031] The drainage ditch 1 is connected to the sewage treatment ditch 2, through which mixed sewage from users’ domestic sewage and rainwater is introduced into the sewage treatment ditch 2;

[0032] The interception assembly is installed in the sewage treatment channel 2 to divert and treat the flowing sewage. The interception assembly includes a baffle 9, the inlet end of which is set in an arc shape. The slope of the baffle 9 in the direction of water flow is not less than 10%. A protective cover is installed on the top of the baffle 9. The baffle 9 divides the sewage treatment channel 2 into an upper direct discharge area and a lower interception area. The lower interception area includes an interception trough 6 installed below the sewage treatment channel 2. The interception trough 6 is connected to the sewage treatment channel 2 through a channel.

[0033] The drainage ditch 1 and the sewage treatment ditch 2 are lined with a volcanic rock filter layer 3 underneath;

[0034] During the rainy season, the mixed sewage formed by rainwater and domestic sewage is introduced into the sewage treatment channel 2 through the drainage channel 1. The mixed sewage flows through the interception component. The upper layer of mixed sewage with better water quality is discharged into the water body through the direct discharge area along the smooth baffle 9, while the lower layer of mixed sewage with poorer water quality flows into the interception channel 6 through the channel, and is then transported to the treatment station for centralized treatment. During the dry season, the overall water volume is less, and the sewage flows directly into the interception channel 6 through the drainage channel 1 and the sewage treatment channel 2, and is then transported to the treatment station for centralized treatment. The above method can effectively reduce the pollutants in the water. The interception component can implement more precise control over the flow rate and direction, and adjust the interception volume according to the water quality of the mixed sewage, so as to achieve the greatest balance between the treatment volume and the direct discharge volume of the mixed sewage. This effectively reduces the scale of the downstream treatment station, reduces subsequent treatment costs, and enhances the stability and reliability of the overall interception operation.

[0035] In addition, by laying a volcanic rock filter layer 3 at the bottom of the canal, the water quality can be purified and the odor can be reduced during the dry season.

[0036] It also includes an adjustment assembly, which includes a detection mechanism and an adjustment mechanism. The detection mechanism includes a T-shaped mounting bracket 13 fixed to the side wall of the inlet of the sewage treatment channel 2. Multiple sets of turbidity sensors 14 are fixed at intervals on the vertical rod of the mounting bracket 13. The adjustment mechanism includes a cylinder 10 fixed to the side wall of the sewage treatment channel 2. The telescopic rod of the cylinder 10 is vertically upward and a fixing rod 11 is fixed at the top. A connecting rod 12 is fixed at the end of the fixing rod 11 away from the cylinder 10. The connecting rod 12 is fixedly connected to the partition plate 9.

[0037] During operation, the turbidity sensor 14 in the regulating component monitors the inlet water quality in real time, acquires turbidity data, and transmits the data to the controller. The controller analyzes and processes the data according to a preset program. A turbidity threshold is preset for wastewater; wastewater exceeding this threshold is considered to have poor water quality and needs to be intercepted by the interception component and discharged into the interception tank 6. Therefore, multiple turbidity sensors 14 are set vertically to detect wastewater at different depths. Based on the turbidity data detected by the sensors 14 at different heights, the analysis determines the wastewater with poor water quality. Based on the analysis results, the controller controls the operation of cylinder 10. The telescopic rod of cylinder 10 drives the fixed rod 11 to move up or down. The fixed rod 11, through the connecting rod 12, drives the partition 9 to adjust its height accordingly. This allows the partition 9 to intercept the sewage with poor water quality and guide it into the intercepting tank 6, so that the upper sewage with better water quality can be discharged into the water body through the direct discharge area. This achieves more precise diversion and treatment of sewage and improves the sewage treatment effect. Through this intelligent adjustment method, the sewage flow direction can be precisely controlled according to the actual sewage quality, further improving the efficiency and effect of sewage treatment and realizing the rational utilization of resources.

[0038] A mounting base 15 is provided below the partition plate 9. The mounting base 15 is fixed to the bottom plate of the sewage treatment channel 2. A sliding groove is provided in the middle of the upper part of the mounting base 15. A movable plate 16 is slidably arranged inside the sliding groove. The top of the movable plate 16 is fixed below the partition plate 9. The two ends of the mounting base 15 and the movable plate 16 are respectively attached to the inner walls of the two sides of the sewage treatment channel 2. The mounting base 15 and the movable plate 16 are located on the side of the through groove of the intercepting channel 6 away from the drainage channel 1.

[0039] During operation, by setting a movable plate 16 and a mounting base 15 below the partition 9, the movable plate 16 can slide synchronously in the groove of the mounting base 15 after the position of the partition 9 is adjusted up and down, always maintaining the sealing effect on the side of the intercepting channel 6, preventing sewage from flowing directly away from the side gaps without filtration, ensuring that the system can still maintain a stable diversion function after the partition 9 is adjusted under different water levels and different turbidity conditions, ensuring the effectiveness of the isolation between the upper direct discharge area and the lower intercepting area, and avoiding short-flow phenomenon that would affect the overall sewage treatment effect.

[0040] The width of the sewage treatment channel 2 is greater than the width of the drainage channel 1. During operation, the width of the sewage treatment channel 2 is designed to be greater than that of the drainage channel 1 in order to buffer and disperse the water flow when the mixed sewage flows from the drainage channel 1 into the sewage treatment channel 2, reduce the water flow speed, and prevent backflow disturbance. This allows the sewage to enter the interception component more smoothly for diversion treatment, and also facilitates the sedimentation of impurities in the sewage, thereby improving the subsequent treatment effect.

[0041] The intercepting channel 6 is fixed to the side and connected to the sedimentation channel 7. The sedimentation channel 7 is provided with a drain pipe 5 on the side. A grid 24 is slidably provided inside the sedimentation channel 7. The grid 24 is slidably provided on the inner wall of the drain pipe 5 by means of a slide rail. An inspection well cover 8 is provided on the top of the sedimentation channel 7.

[0042] During operation, the mixed sewage with poor water quality in the lower layer is intercepted by the movable plate 16 and the mounting base 15, and flows through the channel into the intercepting trough 6 and the sedimentation trough 7 below. The sewage in the intercepting trough 6 is pumped out through the drain pipe 5 and then transported to the treatment station for centralized treatment. At the same time, the screen 24 intercepts large suspended solids and impurities in the sewage into the sedimentation trough 7, effectively preventing blockage of the downstream pipes flowing into the treatment station. In addition, during inspection and maintenance, the inspection well cover 8 can be opened and the screen 24 can be pulled out for easy cleaning of its surface and to remove impurities from the sedimentation trough 7.

[0043] The wastewater treatment channel 2 is equipped with a rainwater sensor 17 and a level gauge 18. The rainwater sensor 17 and level gauge 18 are slidably mounted on the inner wall of the wastewater treatment channel 2 via a float plate. During operation, the rainwater sensor 17 and level gauge 18 control the opening and closing of the electric valves of the treatment station to achieve different operating modes for the dry and rainy seasons. The rainwater sensor 17 can sense rainfall in real time; when rain is detected, the system can determine and enter the corresponding operating mode according to a preset program. The level gauge 18 can be an ultrasonic level gauge, capable of monitoring the water level in the wastewater treatment channel 2 and accurately feeding the water level data back to the control system. The system, during the rainy season, after the rain sensor 17 detects rainfall, combines the water level information fed back by the level gauge 18. If the water level rises rapidly and reaches a certain height, the system will adjust the opening degree of the electric valve of the treatment station to increase the treatment capacity to cope with the inflow of a large amount of mixed rainwater and sewage. During the dry season, when the rain sensor 17 has no rainfall signal and the level gauge 18 detects that the water level is relatively stable and low, the electric valve of the treatment station will adjust to a suitable treatment mode accordingly to reduce unnecessary energy consumption. This achieves efficient and intelligent operation of the treatment station in different modes during the dry and rainy seasons, further improving the adaptability and treatment efficiency of the entire sewage treatment system.

[0044] Sedimentation wells 19 are provided at intervals in the drainage ditch 1. The top of the sedimentation wells 19 is flush with the top of the volcanic rock filter layer 3. During operation, sedimentation wells 19 are set at intervals in the drainage ditch 1. When domestic sewage and rainwater mixed sewage flow in the drainage ditch 1, heavier impurities such as silt in the sewage will gradually settle into the sedimentation wells 19. This can reduce the entry of these impurities into the subsequent sewage treatment ditch 2 and interception components, reduce the risk of blockage of the interception components due to the accumulation of impurities, ensure the smooth operation of the entire sewage treatment system, extend the service life of the equipment, and also reduce the burden on subsequent treatment links.

[0045] A bottom mesh 20 is provided at the bottom of the interior of the drainage ditch 1 and the sewage treatment ditch 2. The bottom mesh 20 has installation holes and is fitted onto the sedimentation well 19. The volcanic rock filter layer 3 is provided above the bottom mesh 20. A pad 21 is provided below the bottom mesh 20. The pad 21 creates a chamber below the bottom mesh 20. An air pipe 22 is laid in the chamber. Spray nozzles 23 are evenly distributed on the air pipe 22.

[0046] During operation, the bottom mesh 20 can be made of high-strength, corrosion-resistant materials (such as stainless steel) to meet the long-term use requirements of the wastewater treatment environment. The bottom mesh 20 supports the volcanic rock filter layer 3. The through holes on the bottom mesh 20 can ensure the smooth passage of gas and prevent larger impurities and particles of the volcanic rock filter layer 3 from falling downwards. The chamber below the bottom mesh 20 provides installation space for the air pipe 22 and the nozzle 23. The air pipe 22 can be connected to an external compressed air source. When backwashing of the volcanic rock filter layer 3 is required, compressed air is sprayed out from the nozzle 23 through the air pipe 22 to form a strong airflow, which loosens the volcanic rock filter layer 3 and loosens the impurities and dirt attached to the volcanic rock filter layer 3, allowing them to be washed away with the water flow. This effectively restores the filtration performance of the volcanic rock filter layer 3, extends its service life, and reduces the cost of frequent filter layer replacement.

[0047] The air duct 22 is designed to consist of a main pipe and multiple branch pipes. The main pipe is responsible for stably introducing compressed air from an external air source into the system, while the multiple branch pipes are evenly distributed in the chamber to ensure that the volcanic rock filter layer 3 in each area receives a sufficient and uniform backwashing effect. Nozzles 23 are arranged on the main pipe and branch pipes at certain intervals to ensure that the airflow impacts the volcanic rock filter layer 3 with appropriate force and range. In actual operation, the supply time and frequency of compressed air can be flexibly adjusted according to factors such as the usage time of the volcanic rock filter layer 3, the sewage flow rate, and the filtration effect. When there is a lot of impurities accumulating on the surface of the filter layer and the filtration efficiency is significantly reduced, the backwashing time and backwashing frequency can be appropriately extended to restore its good filtration performance. Conversely, the backwashing operation can be reduced to achieve efficient resource utilization and stable system operation.

[0048] Example 2: Figure 1As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a rain grate 4 is installed above the drainage ditch 1; this prevents debris from entering the drainage ditch 1 and avoids blockage that could affect the normal flow of sewage; the rain grate 4 is usually made of a sturdy and durable material, such as cast iron or high-strength plastic, which can withstand a certain amount of pressure and weight, and can effectively intercept larger debris, such as branches, plastic bags, stones, etc., preventing these debris from entering the drainage ditch 1 and causing damage or blockage to subsequent equipment such as the volcanic rock filter layer 3 and interception components as the sewage flows, thus ensuring the normal operation of all components of the entire sewage treatment system. Regular operation reduces the probability of equipment failure, lowers maintenance costs and repair frequency; at the same time, the rain grate 4 is designed with a reasonable pore or grid structure 24, which can intercept debris while ensuring that rainwater and sewage can pass through smoothly without significantly hindering the normal flow of water. This ensures that when a large amount of rainwater comes during the rainy season, the drainage ditch 1 can promptly and effectively guide the mixed sewage into the sewage treatment ditch 2, maintaining the stable operation of the entire sewage treatment system under various working conditions and improving the system's adaptability to different sewage flow rates and water qualities; in addition, opening the rain grate 4 facilitates the cleaning of impurities inside the sedimentation well 19.

[0049] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0050] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An interception system suitable for rural sewage treatment, characterized in that: Includes drainage ditch (1), sewage treatment ditch (2) and interception components; The drainage ditch (1) is connected to the sewage treatment ditch (2), through which the mixed sewage from the user’s domestic sewage and rainwater is introduced into the sewage treatment ditch (2). The interception component is installed in the sewage treatment channel (2) to divert the sewage flowing through it; the interception component includes a partition (9), which divides the sewage treatment channel (2) into an upper direct discharge area and a lower interception area. The lower interception area includes an interception trough (6) installed below the sewage treatment channel (2), which is connected to the sewage treatment channel (2) through a channel. The drainage ditch (1) and the sewage treatment ditch (2) are lined with a volcanic rock filter layer (3) underneath. It also includes an adjustment component, which includes a detection mechanism and an adjustment mechanism. The detection mechanism includes a T-shaped mounting bracket (13) fixed on the side wall of the inlet of the sewage treatment channel (2). Multiple turbidity sensors (14) are fixed at intervals on the vertical rod of the mounting bracket (13). The adjustment mechanism includes a cylinder (10) fixed on the side wall of the sewage treatment channel (2). The telescopic rod of the cylinder (10) is vertically upward and a fixing rod (11) is fixed at the top. A connecting rod (12) is fixed at the end of the fixing rod (11) away from the cylinder (10). The connecting rod (12) is fixedly connected to the partition (9). A mounting base (15) is provided below the partition (9). The mounting base (15) is fixed to the bottom plate of the sewage treatment channel (2). A sliding groove is provided in the middle of the upper part of the mounting base (15). A movable plate (16) is slidably arranged inside the sliding groove. The top of the movable plate (16) is fixed below the partition (9). The two ends of the mounting base (15) and the movable plate (16) are respectively attached to the inner walls of the two sides of the sewage treatment channel (2). The mounting base (15) and the movable plate (16) are located on the side of the through groove of the intercepting channel (6) away from the drainage channel (1). The intercepting trough (6) is fixed to the side and connected to the sedimentation trough (7). The sedimentation trough (7) is provided with a drain pipe (5) on the side. The sedimentation trough (7) is slidably provided with a grid (24) inside. The sedimentation trough (7) is provided with a manhole cover (8) on the top.

2. The interception system for rural sewage treatment according to claim 1, characterized in that: The width of the sewage treatment channel (2) is greater than the width of the drainage channel (1).

3. The interception system for rural sewage treatment according to claim 1, characterized in that: The sewage treatment channel (2) is equipped with a rainwater sensor (17) and a level gauge (18).

4. The interception system for rural sewage treatment according to claim 1, characterized in that: A sedimentation well (19) is provided in the middle of the drainage ditch (1).

5. The interception system for rural sewage treatment according to claim 1, characterized in that: The drainage ditch (1) and the sewage treatment ditch (2) are provided with a bottom net (20) at the bottom. The volcanic rock filter layer (3) is provided above the bottom net (20). A pad (21) is provided below the bottom net (20). The pad (21) creates a chamber below the bottom net (20). An air pipe (22) is laid in the chamber. Nozzles (23) are evenly distributed on the air pipe (22).

6. The interception system for rural sewage treatment according to claim 1, characterized in that: A rain grate (4) is installed above the drainage ditch (1).

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