A mobile emergency sewage treatment system for rural domestic sewage

Abstract

The application discloses a mobile emergency sewage treatment system for rural domestic sewage, which comprises a container main body, wherein the container main body comprises a pretreatment unit, a treatment unit, a magnetic coagulation and sedimentation unit and an equipment room; the pretreatment unit comprises a filter which is located at the water inlet position of the container main body; the treatment unit comprises a treatment tank which comprises an aerobic zone and an anoxic zone. The application can realize efficient filtration and treatment, reduce the cost through a reasonable sludge treatment process and magnetic powder recovery, and enhance the cleaning effect through the innovative design of the inclined plate cleaning mechanism. In addition, the application can automatically adjust the reagent dosage and aeration amount in real time according to the water quality through a controller, has high automation degree, and provides an efficient, flexible and economical solution for the emergency treatment of rural domestic sewage.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a mobile emergency wastewater treatment system for rural domestic sewage. Background Technology

[0002] With the improvement of rural living standards, the discharge of domestic sewage is increasing daily. Due to the dispersed geographical distribution of rural areas, sewage treatment infrastructure is relatively weak, and there are seasonal or temporary fluctuations in sewage discharge, such as significant fluctuations in sewage volume and quality during rural market days and peak tourist seasons. Traditional fixed sewage treatment facilities are insufficient to meet these emergency needs. On the one hand, they have long construction periods, high costs, and large land areas; on the other hand, they cannot be flexibly deployed to different emergency locations. They are unable to respond quickly and effectively treat sewage, easily leading to direct discharge and pollution of surrounding water bodies. Existing mobile sewage treatment equipment is insufficient in terms of process specificity, ease of movement, and adaptability to the characteristics of rural domestic sewage, making it difficult to meet the complex emergency sewage treatment requirements in rural areas. Therefore, it is necessary to develop a highly efficient device specifically designed for emergency treatment of rural domestic sewage. Summary of the Invention

[0003] To address the problems mentioned in the background section, this invention provides a mobile emergency sewage treatment system for rural domestic sewage.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A mobile emergency sewage treatment system for rural domestic sewage includes a container body, which includes a pretreatment unit, a treatment unit, a magnetic coagulation sedimentation unit, and an equipment room.

[0006] The pretreatment unit includes a filter located at the water inlet of the container body;

[0007] The treatment unit includes a treatment tank, which includes an aerobic zone and an anoxic zone.

[0008] The magnetic coagulation sedimentation unit includes a primary mixing zone, a secondary mixing zone, a coagulation reaction tank, and an inclined plate sedimentation tank.

[0009] Preferably, the equipment room is equipped with a magnetic recovery machine, a residual sludge pump, a return sludge pump, a dosing device, a blower, a power distribution cabinet, and a generator.

[0010] Preferably, the dosing device includes a coagulant preparation machine and a coagulant storage tank, and the coagulant preparation machine and the coagulant storage tank are connected to the primary mixing zone.

[0011] Preferably, the inlet end of the residual sludge pump and the return sludge pump is connected to the bottom of the inclined plate sedimentation tank, and the outlet end of the return sludge pump is connected to the anoxic zone. An internal return pump and a return sludge distribution pipe are installed inside the anoxic zone.

[0012] Preferably, the aerobic zone is equipped with an aeration mechanism, which includes an aeration pipe connected to a blower. The aeration pipes form a mesh structure and have multiple exhaust ports evenly distributed on them.

[0013] Preferably, the volumes of the primary mixing zone, the secondary mixing zone, and the coagulation reaction tank increase sequentially, and each of the primary mixing zone, the secondary mixing zone, and the coagulation reaction tank is equipped with a stirrer. A sludge storage tank is located directly below the primary mixing zone, the secondary mixing zone, and the coagulation reaction tank, and the sludge discharge end of the remaining sludge pump is connected to the sludge storage tank.

[0014] Preferably, the bottom end of the inclined plate sedimentation tank is provided with a sludge hopper, and the bottom end of the inclined plate sedimentation tank is provided with a sludge scraping device to scrape the sludge into the sludge hopper.

[0015] Preferably, the inclined plate sedimentation tank is provided with an inclined plate mechanism and an inclined plate cleaning mechanism. The inclined plate mechanism includes multiple inclined plates arranged in parallel to each other, and the inclined plates are rotatably installed inside the inclined plate sedimentation tank.

[0016] Preferably, in the working state, the inclined plate has an inclination angle of 60 degrees. One end of the support shaft of the inclined plate extends into the drive box on the outer wall of the inclined plate sedimentation tank and is fixed with gears. A horizontal moving bracket is horizontally slidably installed in the drive box via a first slide rail. A horizontal rack is fixed on the horizontal moving bracket. Multiple gears mesh with the horizontal rack, and the horizontal moving bracket is driven to move horizontally by a push rod motor.

[0017] Preferably, the inclined plate cleaning mechanism includes a scraper, a lifting bracket, and a cleaning fluid delivery pipe. The scraper is rotatably mounted on a support frame, and telescopic sleeves are fixed at both ends of the support frame. The mounting shaft of the scraper extends into the telescopic sleeve and is fixed with a helical column. A guide ring is movably fitted on the outside of the helical column. The guide ring is fixed to the movable part of the telescopic sleeve. A connecting column is fixed at the end of the movable part of the telescopic sleeve away from the support frame. A limit column is fixed on the connecting column. Irregularly shaped guide rails are provided on both inner walls of the inclined plate sedimentation tank. The connecting column is clamped on the irregularly shaped guide rails. The lifting bracket is mounted on a vertically arranged second slide rail and is driven to rise and fall by a driving device. The cleaning fluid delivery pipe is fixed on the lifting bracket, and multiple first branches are fixed below the cleaning fluid delivery pipe. The bottom end of the first branch is fixedly connected to the support frame, and a second branch is fixedly connected to the bottom end of the first branch. The second branch is arranged parallel to the scraper, and multiple cleaning fluid nozzles are evenly distributed on the second branch.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. Mobility: Modified from standard shipping containers, the exterior is sturdy and corrosion-resistant, with adjustable support legs at the bottom and a lifting device at the top. It can adapt to various harsh climates and complex terrains in rural areas and can be flexibly moved to emergency treatment locations via hoisting, quickly responding to the emergency sewage treatment needs of different rural areas and solving the problem of the inflexibility of traditional fixed facilities.

[0020] 2. High-efficiency pretreatment: The filter at the inlet consists of coarse and fine screens, which can effectively intercept solid debris of different sizes in the sewage, prevent it from entering the subsequent treatment stages and causing blockages, and ensure the stable operation of the entire treatment system.

[0021] 3. Optimized Treatment Process: The treatment tank features aerobic and anoxic zones working in tandem. The aerobic zone provides a suitable environment for microorganisms through aeration, efficiently decomposing organic matter and nitrifying ammonia nitrogen. The anoxic zone utilizes anaerobic microorganisms for denitrification and removes some organic matter. Simultaneously, the different biological packing materials filling the two zones provide a growth carrier for microorganisms, further enhancing treatment efficiency.

[0022] 4. Highly Efficient Magnetic Coagulation Sedimentation: In the magnetic coagulation sedimentation unit, the volumes of the primary mixing zone, secondary mixing zone, and coagulation reaction tank increase sequentially, and each is equipped with a stirrer. Combined with a dosing device, chemicals are precisely added, allowing the wastewater to fully react with the chemicals and form magnetic flocs. The inclined plate sedimentation tank, through a specially designed inclined plate mechanism, can switch between vertical and inclined states, accelerating sludge removal and improving sedimentation efficiency, offering superior sludge removal performance compared to traditional fixed inclined plates.

[0023] 5. Innovative Inclined Plate Cleaning Mechanism: Driven by a lifting support, the scraper of the inclined plate cleaning mechanism matches the position of the inclined plate, actively scraping away residual sludge. Simultaneously, the cleaning fluid delivery pipe and nozzle work together to rinse during the scraping process, improving cleaning efficiency. Furthermore, the scraper can switch between vertical and horizontal positions during its lifting and lowering process through a telescopic sleeve and helical column, reducing obstruction to water flow and preventing clogging and corrosion of the cleaning fluid nozzle. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a top-view sectional view of the present invention;

[0026] Figure 2 This is a front-view sectional view of the present invention;

[0027] Figure 3 This is a schematic diagram of the aeration mechanism of the present invention;

[0028] Figure 4 This is a first-view perspective perspective view of the magnetic coagulation sedimentation unit of the present invention;

[0029] Figure 5 This is a second-view perspective perspective view of the magnetic coagulation sedimentation unit of the present invention.

[0030] Figure 6 This is a three-dimensional sectional view of the magnetic coagulation sedimentation unit of the present invention;

[0031] Figure 7 This is a left-side sectional view of the magnetic coagulation sedimentation unit of the present invention;

[0032] Figure 8 This is a schematic diagram showing the installation position of the drive box for the magnetic coagulation sedimentation unit of the present invention;

[0033] Figure 9 The schematic diagram of the magnetic coagulation sedimentation unit of the present invention is shown without the drive box.

[0034] Figure 10 for Figure 9 Enlarged detail image of position A in the middle;

[0035] Figure 11 This is an enlarged detail view of the inclined plate cleaning mechanism of the present invention;

[0036] Figure 12 This is an enlarged detail view of a single set of scrapers and support frames in the inclined plate cleaning mechanism of the present invention;

[0037] Figure 13 for Figure 12 Enlarged detail image of position B in the middle;

[0038] Figure 14 This is a cross-sectional view of the telescopic sleeve of the present invention;

[0039] Figure 15 This is a schematic diagram of the inclined plate cleaning mechanism of the present invention when the scraper is in a horizontal state;

[0040] In the diagram: 1. Treatment tank; 101. Aerobic zone; 1011. Aeration pipe; 1012. Exhaust port; 1013. First biological packing material; 102. Anoxic zone; 1021. Internal return pump; 1022. Return sludge distribution pipe; 1023. Second biological packing material; 2. Equipment room; 201. Magnetic recovery machine; 202. Waste sludge pump; 203. Return sludge pump; 204. Coagulant preparation machine; 205. Blower; 206. Power distribution cabinet; 207. Generator; 208. Coagulant storage tank; 3. Magnetic coagulation sedimentation unit; 301. Primary mixing zone; 302. Secondary mixing zone; 303. Coagulation reaction tank; 304. Inclined plate sedimentation tank; 3041. 305. Sludge hopper; 4. Sludge storage box; 401. Inclined plate mechanism; 402. Drive box; 403. Gear; 404. First slide rail; 405. Horizontal moving support; 4051. Horizontal rack; 406. Push rod motor; 5. Inclined plate cleaning mechanism; 501. Scraper; 5011. Helical column; 502. Support frame; 5021. Telescopic sleeve; 5022. Guide ring; 5023. Connecting column; 5024. Limiting column; 5025. Irregular guide rail; 6. Second slide rail; 601. Lifting support; 602. Cleaning fluid delivery pipe; 603. First branch; 503. Second branch; 5031. Cleaning fluid nozzle; 6. Second slide rail. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1

[0043] Reference Figure 1-15 A mobile emergency sewage treatment system for rural domestic sewage includes a container body, which includes a pretreatment unit, a treatment unit, a magnetic coagulation sedimentation unit 3, and an equipment room 2.

[0044] The main body of the container is a modified standard shipping container. The outer shell is made of high-strength, corrosion-resistant steel, providing excellent sealing and robustness, making it suitable for various harsh weather conditions in rural areas. The four corners of the container are equipped with adjustable support feet, facilitating placement and leveling of the equipment on different terrains. A lifting device is located on the top, allowing for easy transport using cranes or other equipment, enabling flexible movement to emergency response locations in narrow rural roads or areas without vehicular access.

[0045] The pretreatment unit includes a filter located at the inlet of the container body. The filter consists of a coarse screen and a fine screen, with a bar spacing of 15-25mm, and is made of stainless steel. It intercepts large solid debris in the wastewater, such as branches, stones, and large pieces of plastic. The fine screen, positioned after the coarse screen, has a bar spacing of 5-10mm and further removes smaller suspended particles, preventing them from entering subsequent treatment stages and causing blockages.

[0046] The treatment unit includes a treatment tank 1, which includes an aerobic zone 101 and an anoxic zone 102.

[0047] The aerobic zone 101 has a volume of 5-10m³ and is filled with the first biological filler 1013. The high-efficiency biological filler 1013 is a combination filler made of polyethylene or polypropylene with a filling rate of 40%-60%, providing a large number of attachment and growth surfaces for aerobic microorganisms.

[0048] The anoxic zone 102 has a volume of 3-6 m³ and features a special flow-guiding structure, such as baffles, to create a slow circulation of wastewater within the zone, increasing the contact time and reaction efficiency between wastewater and sludge. The anoxic zone is filled with a certain number of secondary biological packing materials 1023. These materials are soft fiber packings that provide a carrier for the attachment and growth of anaerobic microorganisms. Under anoxic conditions, these microorganisms convert nitrate nitrogen in the wastewater into nitrogen gas, which is then discharged. Simultaneously, they remove some organic matter, thus stabilizing the activated sludge flocs.

[0049] The magnetic coagulation sedimentation unit 3 includes a primary mixing zone 301, a secondary mixing zone 302, a coagulation reaction tank 303, and an inclined plate sedimentation tank 304.

[0050] The equipment room 2 is equipped with a magnetic recovery machine 201, a residual sludge pump 202, a return sludge pump 203, a dosing device, a blower 205, a power distribution cabinet 206, and a generator 207.

[0051] The magnetic recovery machine 201 is located near the bottom of the inclined plate sedimentation tank 304 and is used to recover magnetic powder from the settled sludge. It employs magnetic separation technology, using a magnetic field to separate the magnetic powder from the sludge. The recovered magnetic powder can be recycled, reducing processing costs. The magnetic recovery machine 201 achieves a recovery efficiency of over 90%, and is simple and convenient to operate. Regular magnetic powder recovery operations can be performed to reduce magnetic powder loss.

[0052] The dosing device includes a coagulant preparation machine 204 and a coagulant storage tank 208, both connected to the primary mixing zone 301. The dosing device also includes a magnetic powder dosing tank containing high-purity magnetic powder. Using a precise metering pump, the magnetic powder is added to the primary mixing zone 301 upstream of the magnetic coagulation sedimentation unit 3 at a dosage of 20-50 mg / L, based on the wastewater flow rate and water quality. The dosage of polyaluminum chloride (PAC) is 50-100 mg / L, and the dosage of the coagulant anionic polyacrylamide (PAM) is 1-3 mg / L. The three agents are delivered to the primary mixing zone 301 via independent corrosion-resistant pipes and high-precision metering pumps, and a static mixer is provided to ensure thorough and rapid mixing of the agents and wastewater. The dosing device is connected to the control system in the equipment room, allowing for automatic adjustment of agent dosages based on preset programs and real-time water quality monitoring data.

[0053] The sludge inlet of the excess sludge pump 202 and the return sludge pump 203 is connected to the bottom of the inclined plate sedimentation tank 304. The sludge outlet of the return sludge pump 203 is connected to the anoxic zone 102. The anoxic zone 102 is equipped with an internal return pump 1021 and a return sludge distribution pipe 1022. The return ratio can be adjusted between 30% and 80%, so that part of the settled sludge is returned to the anoxic zone 102 to provide sufficient microbial community for the denitrification reaction.

[0054] The aerobic zone 101 is equipped with an aeration system, including aeration pipes 1011 connected to a blower 205. The aeration pipes 1011 form a mesh structure and have multiple exhaust ports 1012 evenly distributed on them. The aeration rate can be automatically adjusted according to the dissolved oxygen concentration in the tank, maintaining a dissolved oxygen content of 2-4 mg / L to ensure efficient decomposition of organic matter in wastewater by aerobic microorganisms and nitrification of ammonia nitrogen. A baffle is installed between the aerobic zone 101 and the anoxic zone 102. The bottom of the baffle has adjustable flow passages to control the wastewater retention time in the aerobic zone to 6-12 hours. The aerobic zone is also equipped with pH and temperature sensors to monitor water quality conditions in real time and adjust operating parameters accordingly.

[0055] The volumes of the primary mixing zone 301, the secondary mixing zone 302, and the coagulation reaction tank 303 increase sequentially. Each of the primary mixing zone 301, the secondary mixing zone 302, and the coagulation reaction tank 303 is equipped with an agitator. A sludge storage tank 305 is located directly below the primary mixing zone 301, the secondary mixing zone 302, and the coagulation reaction tank 303. The sludge discharge end of the remaining sludge pump 202 is connected to the sludge storage tank 305. The remaining sludge can be periodically discharged for subsequent treatment, such as sludge dewatering.

[0056] The coagulation reactor 303 has an effective volume of 2-4 m³ and employs a combination of mechanical and hydraulic agitation. The mechanical agitation device includes a high-speed agitator and a medium-speed agitator. The high-speed agitator operates at 100-150 rpm initially after the reagent is added, ensuring rapid and uniform mixing of the reagent and wastewater and the initial formation of small flocs. The medium-speed agitator then operates at 30-60 rpm, promoting further floc growth and bonding with magnetic powder to form magnetic flocs. The hydraulic retention time in the coagulation reactor 303 is 10-20 minutes. Through a rationally designed flow channel and baffles, a good flow pattern is maintained in the reactor, ensuring a complete reaction.

[0057] The inclined plate sedimentation tank 304 is equipped with a sludge hopper 3041 at the bottom and a sludge scraping device at the bottom to scrape the sludge into the sludge hopper 3041.

[0058] The inclined plate sedimentation tank 304 is equipped with an inclined plate mechanism 4 and an inclined plate cleaning mechanism 5. The inclined plate mechanism 4 includes multiple inclined plates 401 arranged in parallel to each other. The inclined plates 401 are rotatably installed inside the inclined plate sedimentation tank 304.

[0059] Inclined plate 401 is made of polypropylene. Magnetic flocs in the inclined plate sedimentation tank 304 settle rapidly to the bottom of the tank due to gravity. The supernatant from the inclined plate sedimentation tank 304, once it meets the standards, can be directly discharged or reused, such as for farmland irrigation. The inclined plate sedimentation tank 304 is connected to the control system in the equipment room, allowing for real-time monitoring of the sedimentation effect and effluent quality.

[0060] In the working state, the inclined plate 401 has an inclination angle of 60 degrees. One end of the support shaft of the inclined plate 401 extends into the drive box 402 on the outer wall of the inclined plate sedimentation tank 304 and is fixed with a gear 403. A horizontal moving bracket 405 is horizontally slidably installed in the drive box 402 through the first slide rail 404. A horizontal rack 4051 is fixed on the horizontal moving bracket 405. Multiple gears 403 mesh with the horizontal rack 4051, and the horizontal moving bracket 405 is driven to move horizontally by the push rod motor 406.

[0061] By controlling the extension and retraction of the push rod motor 406, the horizontal rack 4051 can be moved horizontally. This allows the inclined plate 401 to rotate through the meshing between the horizontal rack 4051 and the gear 403, enabling the inclined plate 401 to switch between a vertical state and a 60-degree tilt state. When the inclined plate 401 is in a vertical state, it promotes the shedding of sludge deposited on the surface of the inclined plate 401, thereby accelerating sludge discharge. Compared with the traditional fixed-installation inclined plate 401, it can discharge sludge more efficiently.

[0062] The inclined plate cleaning mechanism 5 includes a scraper 501, a lifting bracket 601, and a cleaning fluid delivery pipe 602. The scraper 501 is rotatably mounted on the support frame 502. Telescopic sleeves 5021 are fixed to both ends of the support frame 502. The mounting shaft of the scraper 501 extends into the telescopic sleeve 5021 and is fixed with a helical post 5011. A guide ring 5022 is movably fitted onto the outside of the helical post 5011. The guide ring 5022 is fixed to the movable part of the telescopic sleeve 5021. A connecting post 5023 is fixed to the end of the movable part of the telescopic sleeve 5021 away from the support frame 502. A limit post 5024 is fixed on the connecting post 5023. (The text abruptly ends here, likely due to an incomplete sentence or missing information.) Both sides of the inner wall of the pool 304 are provided with irregular guide rails 5025. The connecting column 5023 is stuck on the irregular guide rail 5025. The lifting bracket 601 is installed on the vertically set second slide rail 6 and is driven to lift by the driving device. The cleaning fluid delivery pipe 602 is fixed on the lifting bracket 601. Multiple first branches 603 are fixed below the cleaning fluid delivery pipe 602. The bottom end of the first branch 603 is fixedly connected to the support frame 502. The bottom end of the first branch 603 is fixedly connected to the second branch 503. The second branch 503 is arranged parallel to the scraper 501. Multiple cleaning fluid nozzles 5031 are evenly distributed on the second branch 503.

[0063] The lifting bracket 601 can drive the scraper 501 to rise and fall. The position of the scraper 501 matches the vertical inclined plate 401. When the scraper 501 moves up and down, it can actively scrape off the residual sludge on the inclined plate 401 and pour cleaning fluid into the cleaning fluid delivery pipe 602. The cleaning fluid is guided through the first branch 603 and the second branch 503 and finally sprayed out from the cleaning fluid nozzle 5031. It can scrape and rinse at the same time, which further improves the cleaning efficiency. When the scraper 501 moves up and down, the limiting post 5024 slides in the irregular guide rail 5025, which can drive the telescopic sleeve 5021 to extend and retract. When the telescopic sleeve 5021 extends and retracts, it can drive the guide ring 5022 to move horizontally outside the helical post 5011. The scraper 501 moves relative to the support frame 502, causing it to rotate. When the scraper 501 is at its highest position, the telescopic sleeve 5021 is at its shortest position, and the scraper 501 is in a vertical position. On the one hand, the vertical scraper 501 can reduce the obstruction of the rising water flow. On the other hand, when the scraper 501 is in a vertical position, it can block the outlet of the cleaning fluid nozzle 5031, preventing dirt from entering the interior of the cleaning fluid nozzle 5031 and causing blockage and corrosion. When the scraper 501 moves downward, the telescopic sleeve 5021 gradually extends and drives the scraper 501 to rotate to a horizontal position. The scraper 501 separates from the cleaning fluid nozzle 5031 and cleans the surface of the inclined plate 401.

[0064] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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 limitations on this invention.

[0065] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0066] The control method of this invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0067] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A mobile emergency sewage treatment system for rural domestic sewage, comprising a container body, characterized in that: The container body includes a pretreatment unit, a processing unit, a magnetic coagulation sedimentation unit (3) and an equipment room (2); The pretreatment unit includes a filter located at the water inlet of the container body; The treatment unit includes a treatment tank (1), which includes an aerobic zone (101) and an anoxic zone (102). The magnetic coagulation sedimentation unit (3) includes a primary mixing zone (301), a secondary mixing zone (302), a coagulation reaction tank (303), and an inclined plate sedimentation tank (304). The inclined plate sedimentation tank (304) is provided with an inclined plate mechanism (4) and an inclined plate cleaning mechanism (5). The inclined plate mechanism (4) includes multiple inclined plates (401) arranged in parallel with each other. The inclined plates (401) are rotatably installed inside the inclined plate sedimentation tank (304). In the working state, the inclined plate (401) has an inclination angle of 60 degrees. One end of the support shaft of the inclined plate (401) extends into the drive box (402) on the outer wall of the inclined plate sedimentation tank (304) and is fixed with a gear (403). A horizontal moving bracket (405) is horizontally slidably installed in the drive box (402) through the first slide rail (404). A horizontal rack (4051) is fixed on the horizontal moving bracket (405). Multiple gears (403) mesh with the horizontal rack (4051), and the horizontal moving bracket (405) is driven to move horizontally by a push rod motor (406). The inclined plate cleaning mechanism (5) includes a scraper (501), a lifting bracket (601), and a cleaning fluid delivery pipe (602). The scraper (501) is rotatably mounted on the support frame (502). Both ends of the support frame (502) are fixed with telescopic sleeves (5021). The mounting shaft of the scraper (501) extends into the telescopic sleeve (5021) and is fixed with a helical column (5011). A guide ring (5022) is movably sleeved on the outside of the helical column (5011). The guide ring (5022) is fixed to the movable part of the telescopic sleeve (5021). A connecting column (5023) is fixed at the end of the movable part of the telescopic sleeve (5021) away from the support frame (502). A limit column (5024) is fixed on the connecting column (5023). The inner walls on both sides of the inclined plate sedimentation tank (304) are provided with different... A shaped guide rail (5025) is attached to a connecting column (5023). A lifting bracket (601) is installed on a vertically set second slide rail (6) and is driven to lift by a drive device. A cleaning fluid delivery pipe (602) is fixed on the lifting bracket (601). Multiple first branches (603) are fixed below the cleaning fluid delivery pipe (602). The bottom end of the first branch (603) is fixedly connected to the support frame (502). The bottom end of the first branch (603) is fixedly connected to a second branch (503). The second branch (503) is parallel to the scraper (501). Multiple cleaning fluid nozzles (5031) are evenly distributed on the second branch (503). When the scraper (501) is in a vertical state, it can block the outlet of the cleaning fluid nozzle (5031).

2. The mobile emergency sewage treatment system for rural domestic sewage according to claim 1, characterized in that: The equipment room (2) is equipped with a magnetic recovery machine (201), a residual sludge pump (202), a return sludge pump (203), a dosing device, a blower (205), a power distribution cabinet (206), and a generator (207).

3. A mobile emergency sewage treatment system for rural domestic sewage according to claim 2, characterized in that: The dosing device includes a coagulant preparation machine (204) and a coagulant storage tank (208), and the coagulant preparation machine (204) and the coagulant storage tank (208) are connected to the primary mixing zone (301).

4. A mobile emergency sewage treatment system for rural domestic sewage according to claim 2, characterized in that: The sludge inlet of the residual sludge pump (202) and the return sludge pump (203) is connected to the bottom of the inclined plate sedimentation tank (304), and the sludge outlet of the return sludge pump (203) is connected to the anoxic zone (102). An internal return pump (1021) and a return sludge distribution pipe (1022) are installed inside the anoxic zone (102).

5. A mobile emergency sewage treatment system for rural domestic sewage according to claim 2, characterized in that: The aerobic zone (101) is equipped with an aeration mechanism, which includes an aeration pipe (1011). The aeration pipe (1011) is connected to a blower (205). The aeration pipe (1011) forms a mesh structure, and multiple exhaust ports (1012) are evenly distributed on the aeration pipe (1011).

6. A mobile emergency sewage treatment system for rural domestic sewage according to claim 2, characterized in that: The volumes of the primary mixing zone (301), the secondary mixing zone (302), and the coagulation reaction tank (303) increase sequentially. A stirrer is provided in each of the primary mixing zone (301), the secondary mixing zone (302), and the coagulation reaction tank (303). A sludge storage tank (305) is provided directly below the primary mixing zone (301), the secondary mixing zone (302), and the coagulation reaction tank (303). The sludge discharge end of the residual sludge pump (202) is connected to the sludge storage tank (305).

7. A mobile emergency sewage treatment system for rural domestic sewage according to claim 1, characterized in that: The inclined plate sedimentation tank (304) is provided with a sludge hopper (3041) at the bottom end, and a sludge scraping device is provided at the bottom end of the inclined plate sedimentation tank (304) to scrape the sludge into the sludge hopper (3041).

Images