Environment-friendly sewage treatment system

Abstract

The invention discloses an environment-friendly sewage treatment system and relates to the field of water treatment.The environment-friendly sewage treatment system comprises a collecting tank and a treatment pond which are communicated, the collecting tank is arranged on a matched equipment base, a formed sewage collecting cavity is machined in the collecting tank, a cleaning opening is formed in one end of the top of the sewage collecting cavity, and a submersible sewage pump access hole is formed in the other end of the top of the sewage collecting cavity; a section of hoisting shaft is connected to each of the cleaning opening and the submersible sewage pump access hole in a matched manner; the side part of the sewage collecting cavity is communicated with a corrugated pipe, a grating net is obliquely arranged in the sewage collecting cavity, and a submersible sewage pump is arranged on one side of the grating net; one end of the treatment tank is communicated with a water outlet pipe, and the other end of the treatment tank is communicated with a sewage inlet pipe; the internal space of the treatment pond is divided into five independent treatment cavities by four vertically arranged sealing partition plates, and the adjacent treatment cavities are communicated through a sewage passing pipe. Compared with the prior art, the device has the advantages that efficient collection and impurity interception are achieved; automatic lifting and processing are achieved; the occupied area is miniaturized; and energy saving and environmental protection are realized.

Description

Technical Field

[0001] The present invention relates to the field of water treatment, and specifically refers to an environment-friendly sewage treatment system. Background Art

[0002] Today, with the increasing attention to environmental protection, sewage treatment technology, as an important means to reduce water pollution and protect water resources, its development and improvement are particularly important. Traditional sewage treatment systems mostly adopt the method of centralized collection and unified treatment. This method is highly efficient in treating a large amount of sewage, but when facing decentralized and small-scale sewage discharges, it often appears to be costly and inflexible. In addition, existing small sewage treatment devices often have problems such as low treatment efficiency, difficult maintenance, and large floor area, and it is difficult to meet the requirements of high efficiency, energy conservation, and easy maintenance for sewage treatment systems under the current environmental protection situation.

[0003] Specifically, the patent with the authorization number CN106348479B proposed a small sewage treatment device. Although this device achieved on-site sewage treatment to a certain extent, there is still room for improvement in terms of treatment efficiency, automation level, and maintenance convenience. For example, during the sewage collection and lifting process, this device lacks an effective impurity interception and cleaning mechanism, resulting in easy blockage of the submersible pump, increasing the maintenance cost; at the same time, the internal structure design of its treatment tank is not optimized enough, resulting in poor sewage flow during the treatment process, affecting the treatment effect. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an environment-friendly sewage treatment system. Through the optimized structural design of the collection tank and the treatment tank, this system realizes the efficient collection of sewage, effective impurity interception, automatic lifting, and multi-stage filtration treatment, thereby improving the sewage treatment efficiency, reducing the maintenance cost, and at the same time achieving miniaturization of the floor area.

[0005] Specifically, the technical solution provided by the present invention is as follows: An environment-friendly sewage treatment system includes a collection tank and a treatment tank that are connected and used in combination. The collection tank is arranged on a supporting equipment base. The collection tank is composed of a sewage collection chamber, a corrugated pipe, a cleaning port, a submersible pump maintenance port, a lifting well, a water pump chain anchoring point, a grille, a submersible pump, and a PE pipe. A formed sewage collection chamber is processed in the collection tank. One end of the top of the sewage collection chamber is equipped with a cleaning port, and the other end is equipped with a submersible pump maintenance port. A section of lifting well is connected to both the cleaning port and the submersible pump maintenance port; the side of the sewage collection chamber is connected to a corrugated pipe. An inclined grille is arranged in the sewage collection chamber. A submersible pump is arranged on one side of the grille. The submersible pump is located in the sewage collection chamber. The submersible pump is connected to the water pump chain anchoring point at the top of the lifting well at the submersible pump maintenance port through a chain. The pump port of the submersible pump is connected to the treatment tank through a PE pipe to realize the connection and combined use of the collection tank and the treatment tank;

[0006] The treatment tank is set on the supporting equipment base. The treatment tank is composed of an influent pipe, a reinforced concrete composite slab, a concrete foundation slab, an effluent pipe, a biological filter bed, an electric box, a resin manhole cover, an aeration pipe, and a sewage passing pipe. One end of the treatment tank is connected to an effluent pipe, and the other end is connected to an influent pipe. The PE pipe of the submersible sewage pump is connected to the influent pipe. The internal space of the treatment tank is divided into five independent treatment chambers by four vertically arranged sealing partitions. Adjacent treatment chambers are connected by a sewage passing pipe, and the sewage passing pipe is used to connect adjacent treatment chambers and realize the sequential flow of sewage through decontamination treatment. The top of each treatment chamber is rotatably assembled with a resin manhole cover that can be rotated to open and close through a hinge. The treatment tank also includes a supporting electric box. Multiple air pump machines are arranged in the electric box, and each air pump machine is connected to the corresponding treatment chamber through its own aeration pipe to realize air supply to the cavities of all treatment chambers.

[0007] Further, the equipment base is composed of a concrete cushion layer and a rammed native soil layer. The rammed native soil layer is laid at the bottom, and a layer of concrete cushion layer is laid on the rammed native soil layer. The bottoms of the collection tank and the treatment tank are cast and fixed on the concrete cushion layer.

[0008] Further, the top wellhead of the lift well is set at the top of the collection tank, and a manhole cover is assembled in a supporting manner at the top wellhead of the lift well.

[0009] Further, the bottom of the treatment tank is a whole concrete foundation slab. A sealed and connected reinforced concrete composite slab is cast on the concrete foundation slab. The reinforced concrete composite slab is composed of four side plates and one cover plate. The four side plates are hermetically connected to each other and the bottom is hermetically connected to the concrete foundation slab. The cover plate is hermetically assembled on the top of the rectangular frame composed of the four side plates. Multiple openings are provided on the cover plate for assembling resin manhole covers.

[0010] Further, the treatment chamber connected to the collection tank through a PE pipe is set as the first treatment chamber. The treatment chambers behind the first treatment chamber are sequentially set as the second treatment chamber, the third treatment chamber, the fourth treatment chamber, and the fifth treatment chamber from left to right. One end of the first treatment chamber is provided with an influent pipe connected to the PE pipe, and the other end is provided with a sewage passing pipe connected to the second treatment chamber. One end of the second treatment chamber is connected to the sewage passing pipe of the first treatment chamber, and the other end is connected to the third treatment chamber through another sewage passing pipe. One end of the third treatment chamber is connected to the sewage passing pipe of the second treatment chamber, and the other end is connected to the fourth treatment chamber through another sewage passing pipe. One end of the fourth treatment chamber is connected to the sewage passing pipe of the third treatment chamber, and the other end is connected to the fifth treatment chamber through another sewage passing pipe. One end of the fifth treatment chamber is connected to the sewage passing pipe of the fourth treatment chamber, and the other end is connected to an effluent pipe that leaks outside the treatment tank.

[0011] Further, a biological filter bed is provided in the fifth treatment chamber. The biological filter bed is a square plate body, and a plurality of holes are drilled in the plate body, and its specifications are adapted to the specifications of the treatment chamber at the installation position; a biological carrier is placed on the biological filter bed for antibacterial filtration of water.

[0012] Further, one air pump can be selected and connected to a main aeration pipe. An independent valve is installed at the corresponding position of each treatment chamber on the main aeration pipe, and the independent valve is connected to the corresponding treatment chamber through its respective aeration pipe.

[0013] The advantages of the present invention compared with the prior art are as follows: (1) Efficient collection and impurity interception: Through the design of the grid, large impurities in the sewage are effectively intercepted, avoiding the blockage of the submersible pump, and improving the stability and maintenance convenience of the system; (2) Automatic lifting and treatment: The submersible pump is connected to the water pump chain anchoring point at the top of the lifting well through a chain, realizing the automatic lifting of sewage and reducing the manual operation cost; at the same time, the design of multiple treatment chambers enables the sewage to flow through multiple treatment stages in sequence, improving the treatment efficiency; (3) Miniaturization of floor area: Through the optimized structural design of the collection tank and the treatment pool, the floor area is miniaturized, making the system more suitable for decentralized and small-scale sewage discharge scenarios; (4) Energy saving and environmental protection: The air pump in the electrical box supplies air to each treatment chamber through the aeration pipe, increasing the dissolved oxygen content in the sewage, which helps the growth and reproduction of microorganisms, thereby enhancing the biological treatment effect; at the same time, the design of the biological filter bed further improves the water quality purification efficiency and reduces the use of chemical agents, meeting the requirements of energy saving and environmental protection. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present invention.

[0015] Figure 2 is a schematic connection structure diagram of the electrical box.

[0016] Figure 3 is another schematic connection structure diagram of the electrical box.

[0017] As shown in the figure: 1. Collection tank, 101. Sewage collection chamber, 102. Bellows, 103. Cleaning port, 104. Submersible pump maintenance port, 105. Lifting well, 106. Water pump chain anchoring point, 107. Grid, 108. Submersible pump, 109. PE pipe, 2. Treatment pool, 201. Inlet sewage pipe, 202. Reinforced concrete composite slab, 203. Concrete foundation slab, 204. Outlet water pipe, 205. Biological filter bed, 206. Electrical box, 207. Resin manhole cover, 208. Aeration pipe, 209. Sewage passing pipe, 210. Main aeration pipe, 211. Independent valve, 3. Equipment base, 301. Concrete cushion layer, 302. Rammed plain soil layer. Detailed Implementation Modes

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0019] Embodiment 1

[0020] like Figure 1 , Figure 2 As shown, this embodiment provides an environmentally friendly sewage treatment system, including a collection tank and a treatment tank that are connected and used together. The collection tank is arranged on the base of the matching equipment, and is composed of a sewage collection chamber, a corrugated pipe, a cleaning port, a submersible sewage pump inspection port, a lifting well, a water pump chain anchor point, a grille net, a submersible sewage pump, a PE pipe, etc. A formed cavity is processed in the sewage collection chamber, one end of the cavity top is equipped with a cleaning port, and the other end is equipped with a submersible sewage pump inspection port. A section of the lifting well is matched and connected to the cleaning port and the submersible sewage pump inspection port. The side of the sewage collection chamber is connected with a corrugated pipe, and a grille net is obliquely arranged in the cavity, and a submersible sewage pump is arranged on one side of the grille net. The submersible sewage pump is connected to the water pump chain anchor point at the top of the lifting well at the submersible sewage pump inspection port through a chain, and the pump port of the submersible sewage pump is connected to the treatment tank through a PE pipe, so that the collection tank and the treatment tank are connected and used together. The treatment pool is also set on the supporting equipment base, and is composed of a sewage inlet pipe, a reinforced concrete composite slab, a concrete foundation slab, a water outlet pipe, a biological filter bed, an electrical box, a resin manhole cover, an aeration pipe, a sewage pipe, etc. The internal space of the treatment pool is divided into five independent treatment chambers by four vertically arranged sealing partitions, and adjacent treatment chambers are connected by a sewage pipe. The top of each treatment chamber is equipped with a rotatable resin manhole cover through a hinge. The treatment pool also includes a supporting control electrical box, which is equipped with multiple air pumps. Each air pump is connected to the corresponding treatment chamber through its own aeration pipe to achieve air supply in all treatment chambers.

[0021] Specifically, the core components of this embodiment include:

[0022] (1) Collection tank 1

[0023] The sewage collection chamber 101 is the main part of the collection tank, designed as a cuboid or cylindrical cavity for accommodating the sewage to be treated. Its bottom is designed as a flat bottom or a conical bottom to facilitate sewage sedimentation and discharge. One end of the corrugated pipe 102 is connected to the side wall of the sewage collection chamber, and the other end is connected to the external sewage pipe for introducing external sewage into the sewage collection chamber. The corrugated pipe is designed to have a certain elasticity to adapt to the deformation requirements under different installation conditions. The cleaning port 103 is arranged at one end of the top of the sewage collection chamber for manually cleaning the impurities and sediments in the collection chamber. A sealing cover is equipped on the cleaning port to prevent sewage overflow. The submersible pump maintenance port 104 is arranged at the other end of the top of the sewage collection chamber for the maintenance and repair of the submersible pump. The maintenance port is also equipped with a sealing cover to ensure no water leakage when the submersible pump is working. The lifting well 105 is a section of vertically arranged pipe, the top wellhead of which is arranged at the top of the collection tank, and the bottom is connected to the submersible pump maintenance port or the cleaning port. A chain guide rail is provided in the lifting well for installing and fixing the lifting chain of the submersible pump. The water pump chain anchoring point 106 is arranged at the top wellhead of the lifting well for fixing the lifting chain of the submersible pump to ensure the stability of the submersible pump during the lifting and lowering process. The grille 107 is inclined in the sewage collection chamber for intercepting large impurities in the sewage to prevent them from entering the submersible pump and causing blockage. The grille is designed to be detachable for easy cleaning and replacement. The submersible pump 108 is installed at the bottom of the sewage collection chamber and is connected to the water pump chain anchoring point through a chain. The submersible pump is used to lift the sewage from the collection chamber to the treatment tank. One end of the PE pipe 109 is connected to the pump port of the submersible pump, and the other end is connected to the sewage inlet pipe of the treatment tank for transporting the sewage to the treatment tank.

[0024] (2) Treatment tank 2

[0025] The influent pipe 201 is connected to the first treatment chamber of the treatment tank and is used to receive sewage from the collection tank. The reinforced concrete composite slab 202 is composed of four side plates and one cover plate. The side plates are hermetically connected to each other and the bottom is hermetically connected to the concrete foundation slab. The cover plate is hermetically assembled on the top of the side plates. The reinforced concrete composite slab forms the main structure of the treatment tank and has sufficient strength and durability. The concrete foundation slab 203 is laid at the bottom of the treatment tank to provide a stable support for the reinforced concrete composite slab. The effluent pipe 204 is connected to the last treatment chamber of the treatment tank and is used to discharge the treated clear water. The biological filter bed 205 is arranged in the fifth treatment chamber and is a square plate body with multiple holes drilled on the plate. Biological carriers are placed on the biological filter bed to perform antibacterial filtration on the water and improve the water quality purification efficiency. The electrical box 206 is provided with multiple air pump machines to provide aeration to each treatment chamber. The electrical box is connected to the control system to achieve automatic control. The resin manhole cover 207 is rotationally assembled on the top of each treatment chamber through a hinge to close the treatment chamber and facilitate maintenance and observation. One end of the aeration pipe 208 is connected to the air pump machine, and the other end extends into the corresponding treatment chamber to provide aeration to the chamber. The sewage passing pipe 209 is used to connect adjacent treatment chambers to enable the sewage to flow through the decontamination treatment in sequence. The sewage passing pipe is designed to be detachable for easy cleaning and maintenance.

[0026] The overall working mode of this embodiment is that external sewage enters the sewage collection chamber through the corrugated pipe. After being intercepted by the grid, large impurities are left in the collection chamber to prevent clogging of the submersible pump. The submersible pump starts and lifts the sewage from the bottom of the collection chamber to the influent pipe of the treatment tank through the connection of the chain with the water pump chain anchoring point. The sewage flows through the first to fifth treatment chambers in sequence. In each treatment chamber, through the aeration provided by the aeration pipe, the activity of microorganisms is enhanced, promoting the biodegradation of sewage. At the same time, the biological filter bed further purifies the water quality in the fifth treatment chamber. The clear water after multi-stage treatment is discharged from the effluent pipe to meet the discharge standard. Through the cleaning port and the submersible pump maintenance port, the impurities in the collection tank can be regularly cleaned and the submersible pump can be maintained. Through the resin manhole cover, it is convenient to enter each treatment chamber for maintenance and observation.

[0027] Embodiment 2

[0028] As Figure 1 、 Figure 2 shown, this embodiment provides a specific implementation manner of the working process of an environmental protection type sewage treatment system, which specifically includes:

[0029] I. Sewage collection stage

[0030] External sewage is connected to the sewage collection chamber 101 of the collection tank 1 through a pipeline. During this process, due to its elastic design, the corrugated pipe 102 can adapt to the access requirements under different installation conditions. The sewage flows through the grille 107, and large impurities are effectively intercepted to prevent them from entering the subsequent treatment process and causing equipment blockage.

[0031] II. Sewage lifting and transportation stage

[0032] When the sewage in the collection tank 1 reaches the preset water level, the control system automatically starts the submersible pump 108. The submersible pump is connected to the chain in the lifting well 105 through the water pump chain anchoring point 106 to achieve stable lifting. The submersible pump lifts the sewage from the bottom of the collection tank 1 to the influent pipe 201 of the treatment tank 2. This process is completed efficiently and without leakage through the PE pipe 109.

[0033] III. Sewage treatment stage

[0034] The sewage flows through the first to fifth treatment chambers in sequence (the chamber numbers are not clearly subdivided, but the working principle applies to the overall treatment tank). In each treatment chamber, aeration is provided through the aeration pipe 208 to enhance the activity of microorganisms and promote the biodegradation of organic pollutants. In the fifth treatment chamber, the biological carrier on the biological filter bed 205 further purifies the water quality, removes residual pollutants, and improves the effluent quality.

[0035] IV. Clean water discharge and monitoring stage

[0036] The treated clean water is discharged from the device through the outlet pipe 204, meeting the environmental protection discharge standards. In the later stage, the control system can be added as needed to monitor the effluent quality in real time to ensure stable effluent compliance. If the water quality does not meet the standards, the treatment parameters will be automatically adjusted or an alarm will be issued to prompt manual intervention.

[0037] V. Maintenance and repair stage

[0038] Regularly clean the impurities in the collection tank 1 through the cleaning port 103, and maintain and repair the submersible pump through the submersible pump maintenance port 104. Open each treatment chamber of the treatment tank through the resin manhole cover 207 for internal maintenance, cleaning, or replacement of the biological filter bed and other maintenance work.

[0039] It can be seen that this highly efficient and automated sewage treatment device realizes the efficient treatment and up-to-standard discharge of sewage through the effective collection of the collection tank 1, the stable lifting of the submersible pump, the multi-stage biological treatment of the treatment tank 2, and the fine filtration of the biological filter bed. At the same time, the intelligent monitoring and maintenance design of the control system ensure the stable operation and long-term benefits of the device.

[0040] Embodiment III

[0041] Such as Figure 2 And Figure 3As shown in the figure, this embodiment provides a basic type of highly efficient automatic sewage treatment device. Its core components include a collection tank 1, a treatment tank 2, and an integrated control system (not clearly labeled but responsible for overall regulation).

[0042] The main body of the collection tank 1 is made of stainless steel, with excellent corrosion resistance and strength. The sewage collection chamber 101 is designed as a rectangle, and its bottom is conical, facilitating the precipitation of solid particles in the sewage. One end of the corrugated pipe 102 is connected to the side wall of the sewage collection chamber 101, and the other end is externally connected to a sewage pipe. Its elastic design ensures flexible access under different installation conditions. The grille 107 is inclined and installed at the entrance of the sewage collection chamber 101, effectively intercepting large impurities and preventing them from entering the subsequent treatment process. The cleaning port 103 is located at the top of the sewage collection chamber 101, facilitating manual cleaning of precipitates and impurities. The submersible pump 108 is installed at the bottom of the collection tank 101 and is connected to the water pump chain anchoring point 106 through a chain. The lifting well 105 provides a vertical lifting space for the submersible pump 108. The PE pipe 109 serves as a sewage delivery pipe, with one end connected to the submersible pump 108 and the other end leading to the sewage inlet pipe 201 of the treatment tank 2.

[0043] The treatment tank 2 is composed of a reinforced concrete composite slab 202 and a concrete foundation slab 203, ensuring the structural stability and durability. The interior of the treatment tank 2 is divided into multiple treatment chambers, and each treatment chamber is equipped with an aeration pipe 208. The aeration volume is adjusted through the control system to promote the growth of microorganisms and the degradation of organic matter. The sewage inlet pipe 201 is connected to the first treatment chamber of the treatment tank to receive sewage from the collection tank 1. The outlet pipe 204 is then connected to the last treatment chamber to discharge the treated clear water. The biological filter bed 205 is arranged in the last treatment chamber to further purify the water quality using the microorganisms on the biological carrier. The resin manhole cover 207 covers the top of each treatment chamber, facilitating maintenance and observation.

[0044] Embodiment Four

[0045] As Figure 1 、 Figure 2 and Figure 3 shown in the figure, this embodiment provides an enhanced type of highly efficient automatic sewage treatment device, which has an enhanced design for the collection tank 1 and the treatment tank 2 and adds an intelligent control function.

[0046] A sewage discharge valve (not labeled) is added to the bottom of the sewage collection chamber 101 of the collection tank 1, facilitating the regular discharge of sediment. The cleaning port 103 and the submersible pump maintenance port 104 both adopt a quick disassembly and assembly design, improving the maintenance efficiency. The corrugated pipe 102 is upgraded to a strengthened type, enhancing the pressure resistance and corrosion resistance. The number of treatment chambers inside the treatment tank 2 is increased, improving the treatment capacity. The aeration pipe 208 adopts a new material, improving the aeration efficiency and durability. The biological carriers on the biological filter bed 205 are optimized, enhancing the biodegradation efficiency. Meanwhile, a transparent observation window (not labeled) is added to the top of the treatment tank 2, facilitating the management personnel to directly observe the treatment process.

[0047] The control system adds a remote monitoring module, which can remotely view information such as the operating status of the device and water quality data through a mobile phone APP or a computer. Meanwhile, the control system has an automatic adjustment function, automatically adjusting parameters such as the aeration volume and treatment time according to the water quality monitoring results, realizing intelligent operation. In addition, the control system also has a fault warning and automatic shutdown function. When a fault occurs in the device, it will automatically send an alarm message to the management personnel's mobile phone or computer and automatically shut down to prevent the expansion of the fault.

[0048] Embodiment Five

[0049] As Figure 1 、 Figure 2 and Figure 3 shown, this embodiment provides a high-end efficient automatic sewage treatment device, further improving the intelligent level and treatment capacity of the device and adding an energy-saving and consumption-reducing design.

[0050] An automatic sewage discharge system (not labeled) is added to the bottom of the sewage collection chamber 101 of the collection tank 1, which can automatically discharge sewage according to the accumulation of sediment, reducing manual intervention. Meanwhile, the material of the collection tank 1 is upgraded to titanium alloy, further improving the corrosion resistance and strength. The number of treatment chambers inside the treatment tank 2 is increased again, and the treatment capacity is greatly improved. The aeration pipe 208 adopts an advanced energy-saving aeration technology, reducing energy consumption.

[0051] It can be seen that the high-end efficient automatic sewage treatment device of this embodiment has reached a relatively high level in terms of treatment capacity, intelligent level, and energy-saving and consumption-reducing, and is suitable for occasions with high water quality requirements.

[0052] The above shows and describes 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 by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly sewage treatment system, comprising a collection tank (1) and a treatment tank (2) connected and used together, characterized in that: The collecting tank (1) is arranged on a matching equipment base (3), and the collecting tank (1) is composed of a sewage collecting chamber (101), a water inlet pipe (102), a cleaning port (103), a submersible sewage pump inspection port (104), a lifting well (105), a pump chain anchor point (106), a grille net (107), a submersible sewage pump (108), and a PE pipe (109). A shaped sewage collecting chamber (101) is machined inside the collecting tank (1), and a cleaning port (103) is provided at one end of the chamber top of the sewage collecting chamber (101), and a submersible sewage pump inspection port (104) is provided at the other end. The cleaning port (103) and the submersible sewage pump inspection port (104) are both provided with The sleeve is connected to a section of a lifting well (105); the side of the sewage collection chamber (101) is connected to a water inlet pipe (102); a grille net (107) is obliquely arranged in the sewage collection chamber (101); a submersible sewage pump (108) is arranged on one side of the grille net (107); the submersible sewage pump (108) is located in the sewage collection chamber (101); the submersible sewage pump (108) is connected to a water pump chain anchor point (106) at the top of the lifting well (105) at the submersible sewage pump inspection port (104) through a chain; the pump port of the submersible sewage pump (108) is connected to the treatment tank (2) through a PE pipe (109), so that the collection tank (1) and the treatment tank (2) are connected and used together; The treatment pool (2) is arranged on a supporting equipment base (3). The treatment pool (2) is composed of a sewage inlet pipe (201), a top plate (102), a bottom plate (203), a water outlet pipe (204), a biological filter bed (205), an electrical box (206), a resin well cover (207), an aeration pipe (208), and a sewage pipe (209). One end of the treatment pool (2) is connected to the water outlet pipe (204), and the other end is connected to the sewage inlet pipe (201). The PE pipe (109) of the submersible sewage pump (108) is connected to the sewage inlet pipe (201). The internal space of the treatment pool (2) is composed of four blocks. The vertically arranged sealing partition is divided into five independent treatment chambers. Adjacent treatment chambers are connected by a sewage pipe (209). The sewage pipe (209) is used to connect adjacent treatment chambers and realize sewage to flow through the sewage in sequence for decontamination treatment. The top of each treatment chamber is equipped with a rotatable resin manhole cover (207) through a hinge. The treatment pool (2) also includes a matching control electrical box (206). The electrical box (206) is equipped with a plurality of air pumps. Each air pump is connected to the corresponding treatment chamber through its own aeration pipe (208) to realize air supply to all treatment chambers.

2. An environmentally friendly sewage treatment system according to claim 1, characterized in that: The equipment base (3) is composed of a concrete cushion layer (301) and a rammed earth layer (302); the rammed earth layer (302) is laid on the bottom, and a layer of concrete cushion layer (301) is laid on the rammed earth layer (302); the bottoms of the collection tank (1) and the treatment tank (2) are cast on the concrete cushion layer (301) and fixed.

3. An environmentally friendly sewage treatment system according to claim 1, characterized in that: The top wellhead of the lifting well (105) is arranged at the top position of the collecting tank (1), and a well cover is matched with the top wellhead of the lifting well (105).

4. An environmentally friendly sewage treatment system according to claim 1, characterized in that: The bottom of the treatment pool (2) is a whole bottom plate (203), on which a sealed top plate (102) is cast, the top plate (102) is composed of four side plates and a cover plate, the four side plates are sealed to each other and the bottom is sealed to the bottom plate (203), the cover plate is sealed to the top of the rectangular frame composed of the four side plates, and a plurality of openings are provided on the cover plate for assembling a resin manhole cover (207).

5. The environmentally friendly sewage treatment system according to claim 1, characterized in that: The treatment chamber connected to the collection tank (1) via the PE tube (109) is set as the No. 1 treatment chamber, and the treatment chambers behind the No. 1 treatment chamber are set as the No. 2 treatment chamber, the No. 3 treatment chamber, the No. 4 treatment chamber, and the No. 5 treatment chamber from left to right; the No. 1 treatment chamber is provided with a sewage inlet pipe (201) connected to the PE tube (109) at one end, and a sewage outlet pipe (209) connected to the No. 2 treatment chamber at the other end; the No. 2 treatment chamber is connected to the sewage outlet pipe (209) of the No. 1 treatment chamber at one end, and is connected to the sewage outlet pipe (209) of the No. 1 treatment chamber at the other end through another sewage outlet pipe (209). The pipe (209) is connected to the No. 3 treatment chamber; one end of the No. 3 treatment chamber is connected to the sewage pipe (209) of the No. 2 treatment chamber, and the other end is connected to the No. 4 treatment chamber through another sewage pipe (209); one end of the No. 4 treatment chamber is connected to the sewage pipe (209) of the No. 3 treatment chamber, and the other end is connected to the No. 5 treatment chamber through another sewage pipe (209); one end of the No. 5 treatment chamber is connected to the sewage pipe (209) of the No. 4 treatment chamber, and the other end is connected to the outlet pipe (204) leaking outside the treatment pool (2).

6. An environmentally friendly sewage treatment system according to claim 5, characterized in that: A biological filter bed (15) is arranged in the No. 5 treatment chamber. The biological filter bed (15) is a plate body with a plurality of holes drilled therein. The specifications of the biological filter bed (15) are adapted to the specifications of the treatment chamber where it is placed. A biological carrier is placed on the biological filter bed (15) for antibacterial filtration of water.

7. An environmentally friendly sewage treatment system according to claim 1, characterized in that: The air pump machine can be selected and connected to an aeration main pipe (20). An independent valve (21) is installed on the aeration main pipe (20) at a corresponding position of each treatment chamber. The independent valve (21) is connected to the corresponding treatment chamber through the respective aeration pipes (18).

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