A new sewage treatment device

Abstract

The utility model relates to sewage treatment technical field especially relates to a novel sewage treatment device. Including shell, pretreatment component, sedimentation treatment component, disinfection treatment component, first conveying spare and second conveying spare, wherein shell is located in the device most outer layer, protects internal component, pretreatment component is used for filtering the impurity in sewage, sedimentation treatment component links with pretreatment component, makes the sewage after pretreatment flow into the deposit, disinfection treatment component carries out disinfection to the sewage after depositing, the utility model discloses through driving member and driven piece under the action of transmission spare carries out opposite movement, makes driven piece can continue to stop the impurity in sewage, and cleaning spare removes the impurity from driven piece in time, guarantees the stability of filtration efficiency, through dosing mechanism can quantitatively inject reagent in disinfection pool, ensures the accuracy of reagent dosage, and the stirring mechanism then evenly stirs the reagent in disinfection pool, makes disinfection effect more stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a novel wastewater treatment device. Background Technology

[0002] Wastewater treatment is a crucial link in environmental protection, playing a vital role in maintaining ecological balance and safeguarding human health. With rapid industrialization and urbanization, wastewater discharge is constantly increasing, posing higher challenges and requirements to wastewater treatment technologies.

[0003] Patent document CN223351143U discloses an oilfield sulfur-containing wastewater treatment device, relating to the field of wastewater treatment technology. It includes a treatment shell with a closed sidewall on one side and an open side on the other. A scraper is mounted on the side of the closed sidewall facing inwards, and a sliding rod is fixedly connected to each of the four corners of the scraper's side facing away from the closed sidewall. A baffle plate is fixedly connected to the end of each sliding rod facing away from the scraper. This invention, through the arrangement of the scraper and sliding rods, ensures that the scraper fits against the inner wall of the treatment shell during filtration, allowing wastewater to enter through the inlet pipe on the baffle plate. After filtration, the filtered wastewater is discharged through the outlet on the scraper, completing the filtration process. After filtration, the scraper is pulled outwards to scrape off the dirt adhering to the inner wall of the treatment shell, thus cleaning the inner wall of the treatment shell.

[0004] When using the above-mentioned technology, the following technical problems were found in the existing technology: after long-term pretreatment of impurities in sewage, it is easily clogged by larger particles in the sewage, affecting the filtration efficiency. Moreover, the replacement and cleaning of the screen plates are not very convenient, increasing maintenance costs and time. In addition, the disinfection agents are difficult to control, resulting in unstable disinfection effects. Occasionally, incomplete disinfection or excessive disinfection may occur, which not only affects the quality of the treated sewage but may also cause secondary pollution to the environment. Therefore, a new type of sewage treatment device is designed to provide an alternative technical solution to the above-mentioned technical problems. Utility Model Content

[0005] Therefore, it is necessary to provide a new type of wastewater treatment device to address the aforementioned technical problems, such as limited filtration efficiency, inconvenient grid maintenance, and unstable disinfection effect in the existing technology.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A novel wastewater treatment device includes a housing and further includes:

[0008] A pretreatment assembly includes a housing disposed within the outer casing, an active member and a driven member vertically disposed within the housing, a transmission member capable of causing the driven member to move in the opposite direction to the active member, and a cleaning member capable of removing impurities from the driven member, wherein the driven member is used to intercept impurities in wastewater.

[0009] A sedimentation treatment assembly includes a sedimentation tank, a suction unit disposed on the sedimentation tank and capable of discharging sludge from the sedimentation tank into the outer casing; and

[0010] The disinfection treatment assembly includes a disinfection tank, a dosing mechanism for quantitatively injecting a chemical agent into the disinfection tank, and a stirring mechanism for mixing the chemical agent evenly within the disinfection tank.

[0011] As a preferred embodiment of the novel sewage treatment device provided by this utility model, the tank has a first inlet at the top, a first outlet on one side for discharging sewage after impurities have been removed into a sedimentation tank, and a second outlet on the other side for discharging impurities out of the tank and out of the outer shell through the tank.

[0012] The housing also has a partition to prevent sewage from contacting the cleaning components when it enters, and a guide plate to guide the sewage through the driven components to be discharged from the first outlet.

[0013] As a preferred embodiment of the novel sewage treatment device provided by this utility model, the active component includes a first rotating shaft rotatably connected to the first inlet, and a blade fixed on the first rotating shaft and equidistantly arranged along the circumference of the first rotating shaft, which can drive the first rotating shaft to rotate when sewage enters from the first inlet.

[0014] The driven component includes a second rotating shaft connected between the first outlet and the second outlet, and a plurality of grid plates fixed on the second rotating shaft and equidistantly arranged along the circumference of the second rotating shaft, wherein the plurality of grid plates have slits in the same direction for sewage to pass through.

[0015] As a preferred embodiment of the novel sewage treatment device provided by this utility model, the transmission component includes a gear set disposed outside the housing and between the gear set and the first rotating shaft, a belt drive assembly disposed between a portion of the gear set and the second rotating shaft, and a baffle fixed outside the housing and covering the gear set and the belt drive assembly. The gear set and the belt drive assembly are combined to drive the grid plate to rotate in the opposite direction to the cleaning component when the blade plate rotates due to the impact force of sewage entering.

[0016] As a preferred embodiment of the novel sewage treatment device provided by this utility model, the transmission component includes a gear set disposed outside the housing and between the gear set and the first rotating shaft, a belt drive assembly disposed between a portion of the gear set and the second rotating shaft, and a baffle fixed outside the housing and covering the gear set and the belt drive assembly. The gear set and the belt drive assembly are combined to drive the grid plate to rotate in the opposite direction to the cleaning component when the blade plate rotates due to the impact force of sewage entering.

[0017] As a preferred embodiment of the novel wastewater treatment device provided by this utility model, the sedimentation tank consists of a sludge hopper that allows sludge to accumulate and a water purification zone that allows wastewater to be clarified.

[0018] The suction unit includes a sludge pump fixed outside the clean water area, a first pipe connected to the inlet of the sludge pump and extending into the sedimentation hopper, and a second pipe connected to the outlet of the sludge pump and extending out of the outer casing.

[0019] As a preferred embodiment of the novel wastewater treatment device provided by this utility model, the sedimentation tank consists of a sludge hopper that allows sludge to accumulate and a water purification zone that allows wastewater to be clarified.

[0020] The suction unit includes a sludge pump fixed outside the clean water area, a first pipe connected to the inlet of the sludge pump and extending into the sedimentation hopper, and a second pipe connected to the outlet of the sludge pump and extending out of the outer casing.

[0021] As a preferred embodiment of the novel wastewater treatment device provided by this utility model, it further includes a first conveying component for discharging clarified water in the water purification zone into the disinfection tank, and a second conveying component for discharging water in the disinfection tank out of the outer shell.

[0022] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0023] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0024] This utility model provides a novel wastewater treatment device that effectively solves the problems of easy clogging and inconvenient replacement and cleaning of the screen plates in traditional devices by setting up a pretreatment component. That is, the driving component and the driven component move in opposite directions under the action of the transmission component, so that the driven component can continuously intercept impurities in the wastewater, while the cleaning component removes the impurities from the driven component in a timely manner, ensuring stable filtration efficiency and reducing maintenance costs and time.

[0025] This utility model provides a novel wastewater treatment device that effectively solves the problem of difficult-to-control disinfectant in traditional devices through the design of its disinfection components. Specifically, the dosing mechanism can quantitatively inject disinfectant into the disinfection tank, ensuring the accuracy of the dosage, while the stirring mechanism evenly disperses the disinfectant within the tank, resulting in a more stable and reliable disinfection effect. This avoids incomplete disinfection or excessive disinfectant levels, thereby ensuring the safety of the treated wastewater and reducing the risk of secondary pollution to the environment. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of a novel wastewater treatment device according to the present invention;

[0028] Figure 2 This is a schematic diagram of the internal structure of the pretreatment component of a novel wastewater treatment device according to this utility model;

[0029] Figure 3 This is a schematic diagram of the transmission component in the pretreatment assembly of a novel wastewater treatment device according to this utility model;

[0030] Figure 4 This is a schematic diagram of the internal structure of the sedimentation and disinfection components of a novel wastewater treatment device according to this utility model;

[0031] Figure 5 This is a schematic diagram of the chemical dosing and stirring mechanism in the disinfection treatment component of a novel wastewater treatment device according to this utility model.

[0032] In the diagram: 1. Pretreatment component; 11. Housing; 12. Driving component; 121. First rotating shaft; 122. Blade; 13. Driven component; 131. Second rotating shaft; 132. Grid plate; 14. Transmission component; 141. Gear set; 142. Transmission assembly; 143. Baffle; 15. Cleaning component; 151. Base; 152. Angled plate; 16. First inlet; 17. First outlet; 18. Second outlet; 2. Sedimentation treatment component; 21. Sedimentation tank; 211 1. Sedimentation hopper; 212. Water purification zone; 22. Suction component; 221. Sludge pump; 222. First pipe; 223. Second pipe; 3. Disinfection treatment component; 31. Disinfection tank; 32. Dosing mechanism; 321. Storage tank; 322. Metering pump; 33. Stirring mechanism; 331. Support frame; 332. Motor; 333. Third rotating shaft; 334. First stirring blade group; 335. Second stirring blade group; 4. Outer shell; 5. First conveying component; 6. Second conveying component. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0035] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] like Figure 1 As shown, this novel wastewater treatment device includes a shell 4, a pretreatment component 1, a sedimentation component 2, a disinfection component 3, a first conveying component 5, and a second conveying component 6; wherein the shell 4 is located on the outermost layer of the device and serves to protect the internal components (such as the pretreatment component 1) and integrate the overall structure.

[0038] The pretreatment component 1 is located inside the housing 4 near the sewage inlet so as to treat the incoming sewage as soon as possible; the sedimentation treatment component 2 is located after the pretreatment component 1 and together with the pretreatment component 1, so that the pretreated sewage can flow smoothly into the sedimentation process.

[0039] The disinfection treatment component 3 is located after the sedimentation treatment component 2 and is used to disinfect the sedimented wastewater; the first conveying component 5 is connected between the sedimentation treatment component 2 and the disinfection treatment component 3 and is used to discharge the sedimented wastewater into the disinfection treatment component 3; the second conveying component 6 is connected between the disinfection treatment component 3 and the wastewater discharge port on the outer shell 4 and is used to discharge the treated wastewater that meets the standards out of the device.

[0040] like Figure 2 As shown, the pretreatment component 1 further includes a housing 11, an active component 12, a driven component 13, a transmission component 14, and a cleaning component 15. The housing 11 has a top first inlet 16, a first outlet 17, and a second outlet 18. Specifically, the active component 12 can be a rotating shaft structure, driven by the impact force generated by the sewage from the first inlet 16 to achieve rotation. The driven component 13 can be a screen structure to effectively intercept various impurities in the sewage. The transmission component 14 is a gear or other transmission structure, through which the driven component 13 moves in the opposite direction to the active component 12.

[0041] The cleaning component 15 can be a scraper structure, which is set on one side of the driven component 13. When the driven component 13 moves, the cleaning component 15 can scrape off the impurities on it and discharge them through the second outlet 18 into the box 11, and then into the outer shell 4. Finally, the wastewater after removing the impurities enters the sedimentation treatment component 2 through the first inlet 16 for subsequent sedimentation treatment.

[0042] It should be noted that the housing 11 also has a partition and a guide plate. Specifically, the partition is located inside the housing 11 and near the first inlet 16. Its function is to prevent the sewage from directly impacting the cleaning component 15 when the sewage flows into the housing 11 from the first inlet 16, thus preventing impurities in the sewage from contacting the cleaning component 15 without being effectively blocked by the driven component 13. This ensures that the cleaning component 15 can better scrape off the impurities on the driven component 13 and improve the impurity cleaning effect.

[0043] The guide plate is inclined and installed at the bottom inside the housing 11, with the highest point facing the cleaning component 15 and the lowest point facing the first outlet 17. It is used to guide the sewage after being filtered by the driven component 13 to the first outlet 17 so that the sewage can enter the subsequent treatment stage.

[0044] In some embodiments, as shown in the figure, the active component 12 further includes a first rotating shaft 121 and a plurality of (four are shown in the figure, but not limited to) blades 122; specifically, the first rotating shaft 121 is rotatably connected inside the housing 11 and is made of high-strength metal material, which has good wear resistance and corrosion resistance, and can adapt to the complex working environment in the sewage treatment process to ensure long-term stable operation.

[0045] Multiple blades 122 are fixed on the first rotating shaft 121, and are preferably designed in an arc shape. This shape can increase the contact area between the blades 122 and the sewage. When the sewage enters from the first inlet 16, the impact force of the sewage can be used more effectively to drive the first rotating shaft 121 to rotate.

[0046] The second rotating shaft 131 is rotatably connected inside the housing 11 and is on the same vertical axis as the first rotating shaft 121. Its material is also high-strength metal to ensure that it can withstand the impact of sewage and various complex working conditions during long-term use.

[0047] Multiple grid plates 132 are fixed on the second rotating shaft 131, and metal grid bars are arranged in the same direction and at equal intervals to form gaps that allow sewage to pass through but impurities in the sewage cannot pass through. In this way, larger impurities and floating objects in the sewage are effectively intercepted through the gaps, preventing them from flowing out of the first outlet 17 and avoiding affecting subsequent treatment processes.

[0048] Based on the above, the cleaning component 15 further includes a base 151 and multiple beveled plates 152; specifically, the base 151 serves as the supporting part of the cleaning component 15 and is stably set below the inner side of the second outlet 18, providing a fixed foundation for the entire cleaning component 15.

[0049] Multiple beveled plates 152 are fixed on the base 151. Their beveled design allows them to cross through the gaps in the grid 132. This design not only ensures that the beveled plates 152 can effectively contact the impurities intercepted by the grid 132, but also that the slope formed by the multiple beveled plates 152 on the base 151 can guide the impurities to slide out of the second outlet 18 along the slope, thereby realizing automatic cleaning of intercepted impurities and improving the efficiency and convenience of the sewage treatment device.

[0050] In some embodiments, such as Figure 3 As shown, and refer to Figure 2 The transmission component 14 further includes a gear set 141, a belt drive set 142, and a baffle 143; specifically, the gear set 141 is composed of two gears of the same specification meshing in sequence, one of which rotates with the first rotating shaft 121, while the other gear is rotatably connected to the outside of the housing 11. Through the rotation of the first rotating shaft 121, the two gears in the gear set 141 rotate in opposite directions.

[0051] The belt drive assembly 142 includes a drive pulley coaxially connected to a gear rotatably connected to the outside of the housing 11, a driven pulley coaxially connected to the second rotating shaft 131, and a transmission belt sleeved on the drive pulley and the driven pulley. When the gear assembly 141 rotates, it drives the drive pulley coaxially connected to it to rotate. The drive pulley then drives the driven pulley to rotate through the transmission belt. The driven pulley drives the second rotating shaft 131 to rotate, thereby causing the grid plate 132 on the second rotating shaft 131 to rotate toward the cleaning member 15 so as to receive the cleaning member 15 to remove impurities.

[0052] The baffle 143 serves to protect the gear set 141 and belt drive set 142, preventing damage from sewage and debris. It also prevents personnel from accidentally contacting the transmission components and causing danger, ensuring that the entire transmission component 14 operates in a safe and stable environment. This enables the blade 122 to rotate under the pressure of sewage entry, driving the grid plate 132 to rotate in the opposite direction to the cleaning component 15, thus ensuring the efficient operation of the device.

[0053] like Figure 4 As shown, and refer to Figure 1 The sedimentation treatment component 2 further includes a sedimentation tank 21 and a suction unit 22. Specifically, the sedimentation tank 21 is used to allow sludge in the sewage to settle and accumulate naturally at the bottom of the tank, facilitating subsequent suction treatment. The suction unit 22 uses a high-power suction pump, the suction port of which is connected to a flexible pipe. Preferably, a filter screen is provided at the end of the pipe to prevent large debris from entering the pump body and causing damage. In some embodiments, the discharge port of the suction pump is connected to a sludge collection device outside the outer casing 4 through a pipe to achieve continuous discharge of sludge.

[0054] The disinfection treatment component 3 further includes a disinfection pool 31, a dosing mechanism 32, and a dosing mechanism 32; specifically, the disinfection pool 31 is sealed in the outer shell 4, which can effectively prevent the odor generated during the disinfection process from spreading to the surrounding environment, while reducing the waste caused by the volatilization of the agent;

[0055] The dosing mechanism 32 is used to precisely control the injection volume of the disinfectant, ensuring a stable and reliable disinfection effect. The stirring mechanism 33 is used to thoroughly stir the disinfectant in the disinfection tank 31, so that the disinfectant and wastewater are quickly and evenly mixed, improving disinfection efficiency. In some embodiments, the disinfection tank 31 is also equipped with a level sensor and a concentration detector. The level sensor can monitor the liquid level in the disinfection tank 31 in real time, and the concentration detector can accurately detect the concentration of the disinfectant, so as to adjust the dosing volume and stirring time in a timely manner.

[0056] In some embodiments, as shown in the figure, the sedimentation tank 21 is further composed of a sludge hopper 211 and a water purification zone 212. Specifically, the sludge hopper 211 is designed as a conical structure that is wider at the top and narrower at the bottom. This structure is conducive to the sludge naturally gathering to the bottom under the action of gravity, which facilitates subsequent suction treatment. The water purification zone 212 is located above the sludge hopper 211, and its volume is set according to the actual treatment requirements to ensure that the sewage has sufficient retention time for sedimentation and separation.

[0057] The suction unit 22 further includes a sludge pump 221, a first pipe 222, and a second pipe 223. Specifically, the sludge pump 221 is fixed on the outside of the clean water zone 212. When it is started, it can pump out the sludge accumulated in the sedimentation hopper 211 through the first pipe 222 and then discharge the sludge out of the outer shell 4 through the second pipe 223, thereby cleaning the sludge in the sedimentation tank 21.

[0058] like Figure 5 As shown, and refer to Figure 4 The stirring mechanism 33 further includes a support frame 331, a motor 332, a third rotating shaft 333, a first stirring blade assembly 334, and a second stirring blade assembly 335. Specifically, the support frame 331 is made of high-strength metal material and can be firmly fixed to the top of the disinfection tank 31, providing reliable support for the motor 332. The motor 332 is a geared motor 332, which can ensure that the third rotating shaft 333 rotates continuously and stably at low speed.

[0059] The third rotating shaft 333 is preferably made of stainless steel and is used to accurately transmit the power of the motor 332. The first stirring blade group 334 and the second stirring blade group 335 are both made of corrosion-resistant materials. Their shape and size are determined according to the actual application. For example, the figure shows that the first stirring blade group 334 is a straight plate and the second stirring blade group 335 is a "V" shaped plate. The first stirring blade group 334 is located on the upper part of the third rotating shaft 333 and the second stirring blade group 335 is located on the lower part of the third rotating shaft 333. The two work together to form different levels of stirring flow field in the disinfection tank 31, so that the agent and the sewage are fully mixed and the disinfection effect is improved.

[0060] The dosing mechanism 32 further includes two (including but not limited to) storage tanks 321 and a metering pump 322; specifically, the storage tanks 321 are made of high-strength and chemically resistant materials to ensure long-term stable storage of various wastewater treatment agents without leakage or deterioration;

[0061] The design of the medicine storage tank 321 being vertically aligned with the disinfection pool 31 and embedded in the outer shell 4 greatly facilitates the addition and replenishment of medicines while reducing space occupation.

[0062] The metering pump 322 is fixed on the support frame 331 to ensure its operational stability. Through its connection with the chemical storage tank 321, it can accurately control the amount of chemical added, ensuring the precise ratio of chemical to sewage during the sewage treatment process, and further improving the disinfection and treatment effect.

[0063] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. The present utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A novel wastewater treatment device, comprising a casing (4), characterized in that, Also includes: The pretreatment assembly (1) includes a housing (11) disposed within the outer casing (4), an active member (12) and a driven member (13) disposed vertically within the housing (11), a transmission member (14) capable of causing the driven member (13) to move in the opposite direction to the active member (12), and a cleaning member (15) capable of removing impurities from the driven member (13), wherein the driven member (13) is used to block impurities in the sewage; A sedimentation treatment assembly (2) includes a sedimentation tank (21), a suction unit (22) disposed on the sedimentation tank (21) and capable of discharging sludge from the sedimentation tank (21) into the outer casing (4); and The disinfection treatment component (3) includes a disinfection tank (31), a dosing mechanism (32) for quantitatively injecting a drug into the disinfection tank (31), and a stirring mechanism (33) capable of mixing the drug in the disinfection tank (31).

2. The novel wastewater treatment device according to claim 1, characterized in that, The box (11) has a top first inlet (16), a first outlet (17) on one side for discharging wastewater after impurity removal into the sedimentation tank (21), and a second outlet (18) on the other side for discharging impurities out of the box (11) and out of the outer shell (4) through the box (11). The housing (11) also has a partition that prevents sewage from contacting the cleaning member (15) when it enters, and a guide plate that can guide the sewage through the follower (13) to be discharged from the first outlet (17).

3. The novel wastewater treatment device according to claim 2, characterized in that, The active component (12) includes a first rotating shaft (121) rotatably connected to the first inlet (16), and a blade (122) fixed on the first rotating shaft (121) and equidistantly arranged along the circumference of the first rotating shaft (121), which can drive the first rotating shaft (121) to rotate when sewage enters from the first inlet (16). The driven member (13) includes a second rotating shaft (131) connected between the first outlet (17) and the second outlet (18), and a plurality of grid plates (132) fixed on the second rotating shaft (131) and equidistantly arranged along the circumference of the second rotating shaft (131), the plurality of grid plates (132) having slits in the same direction for sewage to pass through.

4. The novel wastewater treatment device according to claim 3, characterized in that, The transmission component (14) includes a gear set (141) disposed outside the housing (11) and between it and the first rotating shaft (121), a belt drive assembly (142) disposed between a portion of the gear set (141) and the second rotating shaft (131), and a cover (143) fixed outside the housing (11) and covering the gear set (141) and the belt drive assembly (142). The gear set (141) and the belt drive assembly (142) are combined to drive the grid plate (132) to rotate in the opposite direction to the cleaning component (15) when the blade plate (122) rotates due to the impact force of sewage entering.

5. The novel wastewater treatment device according to claim 4, characterized in that, The cleaning component (15) includes a base (151) fixedly located below the inner side of the second outlet (18), and a plurality of beveled plates (152) fixed on the base (151), each capable of crossing through the gaps in the grid plate (132), and the plurality of beveled plates (152) together form a slope on the base (151) that allows impurities to slide out of the second outlet (18).

6. The novel wastewater treatment device according to claim 1, characterized in that, The sedimentation tank (21) consists of a sludge hopper (211) that allows sludge to accumulate and a water purification zone (212) that allows wastewater to be clarified. The suction unit (22) includes a sludge pump (221) fixed outside the clean water area (212), a first pipe (222) connected to the inlet of the sludge pump (221) and extending into the sedimentation hopper (211), and a second pipe (223) connected to the outlet of the sludge pump (221) and extending out of the outer casing (4).

7. The novel wastewater treatment device according to claim 1, characterized in that, The stirring mechanism (33) includes a support frame (331) that fixes the top of the disinfection tank (31), a motor (332) fixed in the middle of the support frame (331), a third rotating shaft (333) coaxially connected to the motor (332), and a first stirring blade group (334) and a second stirring blade group (335) fixed on the third rotating shaft (333). The dosing mechanism (32) includes at least two medicine storage tanks (321) that are vertically opposite to the disinfection pool (31) and embedded in the outer shell (4), and a metering pump (322) that is also fixed on the support frame (331) and communicates with the medicine storage tanks (321).

8. The novel wastewater treatment device according to claim 6, characterized in that, It also includes a first conveying member (5) for discharging the clarified water in the water purification zone (212) into the disinfection tank (31), and a second conveying member (6) for discharging the water in the disinfection tank (31) out of the outer casing (4).

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