Integrated household sewage treatment device

Abstract

This utility model discloses an integrated household sewage treatment device, relating to the field of sewage treatment technology. The tank contains a pretreatment tank, an equalization tank, and a biological filter. An inlet pipe is connected to the pretreatment tank, allowing sewage to be treated to flow into it. The upper end of the pretreatment tank connects to the equalization tank, allowing pretreated sewage to be discharged into it. The equalization tank contains a water distribution element that distributes water to the sewage entering it. The biological filter contains filter media elements, and both its upper and lower ends connect to the equalization tank. The filter media elements treat the sewage in the biological filter, allowing treated water to enter the equalization tank. An outlet pipe for discharging treated sewage is located on the corresponding side wall of the tank, near the upper end of the equalization tank. This utility model has a simple structure, is easy to operate, and provides good sewage treatment results.

Description

Technical Field

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

[0002] Currently, the high level of attention and proactive measures taken regarding rural sewage treatment are helping to accelerate its progress. However, rural sewage is characterized by discontinuous, irregular discharges and small volumes, making it impossible to directly utilize the activated sludge process. Furthermore, the activated sludge process requires aeration devices, which are difficult to maintain and costly to operate within small-scale equipment. Therefore, existing technologies for integrated household sewage treatment in rural areas often employ complex structures, incurring high maintenance costs and producing poor effluent quality. Additionally, they suffer from high power consumption and maintenance difficulties.

[0003] Therefore, there is an urgent need to provide an integrated household sewage treatment device that is low in construction cost, easy to operate, and requires little maintenance. Utility Model Content

[0004] The purpose of this utility model is to provide an integrated household sewage treatment device to solve the problems existing in the prior art. It has a simple structure, is easy to operate, and has a good sewage treatment effect.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides an integrated household sewage treatment device, including a tank. The tank contains a pretreatment tank, an equalization tank, and a biological filter. An inlet pipe is connected to the tank at a position corresponding to the pretreatment tank, allowing sewage to be treated to flow into the pretreatment tank. The upper end of the pretreatment tank is connected to the equalization tank, and the pretreatment tank can discharge pretreated sewage into the equalization tank. The equalization tank contains a water distribution element that distributes water into the sewage entering the equalization tank. The biological filter contains filter media elements, and both the upper and lower ends of the biological filter are connected to the equalization tank. The filter media elements treat the sewage in the biological filter, and the treated water from the biological filter can enter the equalization tank. An outlet pipe for discharging treated sewage is located on a corresponding side wall of the tank, near the upper end of the equalization tank.

[0007] Preferably, the pretreatment tank includes a primary pretreatment unit and a secondary pretreatment unit, which are separated by a first partition. The first partition is vertically fixed to the inner bottom surface of the tank, and its upper end is flush with the upper end of the tank. The lower end of the first partition is provided with a water passage hole that can connect the primary pretreatment unit and the secondary pretreatment unit. One end of the water inlet pipe extends into the primary pretreatment unit, and the upper end of the secondary pretreatment unit is connected to the interior of the regulating tank.

[0008] Preferably, the secondary pretreatment unit is provided with a regulating water pipe, and the regulating tank is provided with a distribution water pipe. The upper end of the regulating water pipe is located inside the secondary pretreatment unit, and the upper end of the regulating water pipe is not higher than the upper end of the secondary pretreatment unit. The lower end of the regulating water pipe extends into the regulating tank and is connected to the upper end of the distribution water pipe. The regulating water pipe can pass water from the secondary pretreatment unit into the distribution water pipe.

[0009] Preferably, the water distribution pipe has multiple water distribution holes.

[0010] Preferably, a second partition is also installed inside the tank. The second partition is perpendicular to the first partition and is vertically fixed to the inner bottom surface of the tank. The upper end of the second partition is flush with the upper end of the tank. One side of the second partition is the pretreatment tank, and the other side of the second partition is the equalization tank and the biological filter tank.

[0011] Preferably, a third baffle is also installed inside the tank. The third baffle is parallel to the bottom surface of the tank and perpendicular to the second baffle. The third baffle is located on one side of the second baffle. The biological filter is above the third baffle, and the equalization tank is below the third baffle.

[0012] Preferably, the equalization tank is equipped with a submersible sewage pump, the outlet of which is connected to a pumping pipe, the upper end of which can pass through the third partition and extend to the top of the biological filter.

[0013] Preferably, the tank body is also provided with a maintenance hole on its side wall, which is closed by a maintenance door, and the maintenance hole is set at the location of the submersible pump.

[0014] Preferably, the regulating tank is further provided with a filter water pipe, the upper end of which is connected to the third partition and can connect to the bottom of the biological filter, the lower end of which is connected to the bottom surface of the tank and connects to the interior of the regulating tank.

[0015] Preferably, a perforated water distribution plate is installed at the upper end of the biological filter. The perforated water distribution plate has multiple perforations, allowing water in the pretreatment tank to enter the perforated water distribution plate above the pretreatment tank and then enter the biological filter through the perforations.

[0016] The present invention achieves the following technical advantages over the prior art:

[0017] This utility model provides an integrated household sewage treatment device, including a tank containing a pretreatment tank, an equalization tank, and a biological filter. An inlet pipe is connected to the tank at the location corresponding to the pretreatment tank, allowing sewage to be treated to be introduced into the pretreatment tank for continuous treatment within the integrated household sewage treatment device. The upper end of the pretreatment tank is connected to the equalization tank, where the sewage undergoes pretreatment and initial sedimentation. The pretreatment tank discharges the pretreated sewage into the equalization tank, which is equipped with a water distribution element to distribute water into the incoming sewage, reducing dead zones and clogging, and improving sewage treatment efficiency. The biological filter contains filter media elements, and both the upper and lower ends of the biological filter can... The system connects to the equalization tank, and the filter media elements can treat the wastewater in the biological filter. After the water is distributed in the equalization tank, it enters the biological filter from the top and makes full contact with the filter media elements, improving the wastewater treatment efficiency. The treated water in the biological filter then enters the equalization tank again from the bottom, achieving multiple cycles of water between the biological filter and the equalization tank, thus improving the wastewater treatment effect. The tank body is equipped with an outlet pipe on the corresponding side wall for discharging the treated wastewater. The outlet pipe is located near the top of the equalization tank, so that the treated water is discharged through the outlet pipe after the water level in the equalization tank reaches the outlet pipe. Through the above design, the overall structure is compact, occupies a small area, has low energy consumption, and is easy to maintain, making it suitable for single-household wastewater treatment in rural areas. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the integrated household sewage treatment device of this utility model;

[0020] In the diagram: 100-Pretreatment tank, 200-Biological filter, 300-Equalization tank, 1-Tank body, 2-First baffle, 3-Equalization water pipe, 4-Second baffle, 5-Perforated water distribution plate, 6-Pump pipe, 7-Outlet pipe, 8-Maintenance hole, 9-Inlet pipe, 10-Third baffle, 11-Filter water pipe, 12-Submersible pump, 13-Water distribution pipe, 14-Filter media element. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] The purpose of this invention is to provide an integrated household sewage treatment device to solve the problems existing in the prior art. It has a simple structure, is easy to operate, and has a good sewage treatment effect.

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1As shown, this embodiment provides an integrated household sewage treatment device, including a tank 1. The tank 1 contains a pretreatment tank 100, an equalization tank 300, and a biological filter 200. An inlet pipe 9 is connected to the tank 1 at a position corresponding to the pretreatment tank 100. The inlet pipe 9 is used to introduce sewage to be treated into the pretreatment tank 100, facilitating continuous sewage treatment within the integrated household sewage treatment device. The upper end of the pretreatment tank 100 is connected to the equalization tank 300. The pretreatment tank 100 pre-treats the sewage, causing initial sedimentation. The pre-treated sewage can be discharged into the equalization tank 300. The equalization tank 300 is equipped with a water distribution element, which distributes water into the sewage entering the equalization tank 300, reducing dead zones and clogging, and improving sewage treatment efficiency. The biological filter 200 contains filter media elements 14. The upper end of the biological filter 200 and the biological filter 200... The lower ends of all tanks can be connected to the equalization tank 300, and the filter media element 14 can treat the sewage in the biological filter 200. After the water is distributed in the equalization tank 300, the water enters the biological filter 200 through the upper end of the biological filter 200 and makes full contact with the filter media element 14 to improve the sewage treatment efficiency. The treated water in the biological filter 200 enters the equalization tank 300 again through the lower end of the biological filter 200 to realize multiple circulation of water between the biological filter 200 and the equalization tank 300, thereby improving the sewage treatment effect. The tank 1 is provided with an outlet pipe 7 for discharging the treated sewage on the corresponding side wall. The outlet pipe 7 is set close to the upper end of the equalization tank 300. After the water level in the equalization tank 300 reaches the position of the outlet pipe 7, the treated water is discharged through the outlet pipe 7. Through the above design, the overall structure is compact, the footprint is small, the energy consumption is low, and the maintenance is simple, making it suitable for rural single-household sewage treatment.

[0025] Specifically, the pretreatment tank 100 includes a primary pretreatment unit and a secondary pretreatment unit, which are separated by a first partition 2. The first partition 2 is vertically fixed to the inner bottom surface of the tank 1, and the upper end of the first partition 2 is flush with the upper end of the tank 1. The lower end of the first partition 2 is provided with a water passage hole, which can connect the primary pretreatment unit and the secondary pretreatment unit. One end of the inlet pipe 9 extends into the primary pretreatment unit, thereby introducing the wastewater to be treated into the primary pretreatment unit. Then, the wastewater enters the secondary pretreatment unit from the lower end through the water passage hole, reducing disturbance to the water in the secondary pretreatment unit and allowing the wastewater to be treated to undergo preliminary sedimentation in the secondary pretreatment unit. The sediment is deposited at the lower end of the secondary pretreatment unit. The upper end of the secondary pretreatment unit is connected to the interior of the equalization tank 300, allowing the settled water to enter the equalization tank 300 through the upper end of the secondary pretreatment unit.

[0026] The secondary pretreatment unit is equipped with a regulating water pipe 3, and the regulating tank 300 is equipped with a distribution pipe 13. The upper end of the regulating water pipe 3 is located inside the secondary pretreatment unit, and the upper end of the regulating water pipe 3 is not higher than the upper end of the secondary pretreatment unit, so as to ensure that the water in the secondary pretreatment unit can enter the regulating water pipe 3. The lower end of the regulating water pipe 3 extends into the regulating tank 300 and is connected to the upper end of the distribution pipe 13. The regulating water pipe 3 can pass the water in the secondary pretreatment unit into the distribution pipe 13 to complete the water distribution in the regulating tank 300.

[0027] The water distribution pipe 13 has multiple water distribution holes, allowing water from the secondary pretreatment unit to flow into the equalization tank 300 through different water distribution holes. This ensures uniform water distribution while also agitating the water in the equalization tank 300, preventing dead zones that could affect wastewater treatment efficiency. In a preferred embodiment, the water distribution holes are evenly arranged along the length of the water distribution pipe.

[0028] A second partition 4 is also installed inside the tank 1. The second partition 4 is perpendicular to the first partition 2 and is fixed vertically to the inner bottom surface of the tank 1. The upper end of the second partition 4 is flush with the upper end of the tank 1, thereby dividing the interior of the tank 1 into two independent spaces. One side of the second partition 4 is the pretreatment tank 100, and the other side of the second partition 4 is the equalization tank 300 and the biological filter 200.

[0029] A third baffle 10 is also installed inside the tank 1. The third baffle 10 is parallel to the bottom surface of the tank 1 and perpendicular to the second baffle 4. The third baffle 10 is located on one side of the second baffle 4. Above the third baffle 10 is the biological filter 200, and below the third baffle 10 is the equalization tank 300. Through the arrangement of the second baffle 4 and the third baffle 10, the pretreatment tank 100, the equalization tank 300 and the biological filter 200 are divided into three independent chambers, which facilitates the graded treatment of sewage. At the same time, in this embodiment, through the arrangement of the first baffle 2, the pretreatment tank 100 is divided into two independent pretreatment chambers, namely, the primary pretreatment unit and the secondary pretreatment unit. The primary pretreatment unit and the secondary pretreatment unit realize the initial sedimentation of sewage to initially filter impurities in sewage and avoid clogging of other components.

[0030] A submersible sewage pump 12 is installed inside the equalization tank 300. The submersible sewage pump 12 is installed at the bottom of the equalization tank 300. The inlet of the submersible sewage pump 12 is connected to the inside of the equalization tank 200, and the outlet of the submersible sewage pump 12 is connected to a pumping pipe 6. The upper end of the pumping pipe 6 can pass through the third partition 10 and extend to the top of the biological filter 200. Thus, through the arrangement of the submersible sewage pump 12 and the pumping pipe 6, water in the equalization tank 300 can be pumped to the biological filter 200 through the pumping pipe 6 and enter the biological filter 200 from the upper end, so as to facilitate further treatment of sewage. At the same time, since only one submersible sewage pump 12 needs to be installed in this embodiment, there is no need to add other aeration devices. Therefore, only the submersible sewage pump needs to be inspected and maintained, making the overall structure simple, with less maintenance workload, low operating costs, and simple operation.

[0031] A perforated water distribution plate 5 is installed at the upper end of the biological filter 200, and the upper surface of the perforated water distribution plate is lower than the upper end of the biological filter 200 to prevent sewage from overflowing the biological filter 200. The perforated water distribution plate 5 has multiple perforations. After the water in the pretreatment tank 100 enters the top of the biological filter 200 through the pump pipe 6, it can enter the biological filter 200 through the perforations on the perforated water distribution plate 5 to achieve the water distribution function. This allows the water to fully contact the filter media element 14 after entering the biological filter 200, thereby improving the sewage treatment effect.

[0032] The side wall of the tank body 1 is also provided with a maintenance hole 8, which is closed by a maintenance door. The maintenance door can be opened. At the same time, the maintenance hole 8 is set at the position of the submersible pump 12, so as to facilitate the removal of the submersible pump 12 for daily maintenance and repair.

[0033] The equalization tank 300 is also equipped with a filter water pipe 11. The upper end of the filter water pipe 11 is connected to the third partition 10, and the filter water pipe 11 can connect to the bottom of the biological filter 200. The lower end of the filter water pipe 11 is connected to the bottom surface of the tank 1, and the lower end of the filter water pipe 11 connects to the inside of the equalization tank 300. This facilitates the re-entry of the water treated in the biological filter 200 into the equalization tank 300, and then back into the biological filter 200 via the submersible sewage pump 12 and pumping pipe 6 in the equalization tank 300. After multiple cycles of treatment, the sewage treatment effect is improved. At the same time, it is suitable for discontinuous rural sewage discharge, so that it can eventually meet the discharge standards.

[0034] The working principle of this embodiment is as follows:

[0035] First, the wastewater enters the primary pretreatment unit through the inlet pipe 9, and then enters the secondary pretreatment unit through the water passage at the bottom of the first partition 2. The pre-sedimented raw water enters the equalization tank 300 through the equalization water pipe 3, and is evenly distributed through the water distribution pipe 13 inside the equalization tank 300. Then, the submersible sewage pump 12 is connected to the pumping pipe 6 and pumped to the top of the biological filter 200. The water is distributed to the biological filter 200 through the perforated water distribution plate 5 set in the biological filter 200. After being treated by the filter media element 14, the water returns to the equalization tank 300 through the filter water pipe 11. After multiple treatments, the water is pushed out of the outlet pipe 7 when it enters the equalization tank 300. At the same time, the submersible sewage pump 12 can be maintained through the maintenance hole 8 during the application process.

[0036] In this embodiment, during the circulation of water through the equalization tank 300 and the biological filter 200, as water enters the equalization tank 300 from the lower end of the distribution pipe 13, the qualified water in the upper part of the equalization tank 300 is pushed out through the outlet pipe 7. The newly entering water mixes with the qualified water in the equalization tank 300, achieving a dilution effect. Then, it re-enters the biological filter 200 for circulation and filtration. Ultimately, when water enters the equalization tank 300, it is pushed out and discharged when the equalization tank 300 reaches a certain liquid level (i.e., the position of the outlet pipe 7). There is no need for valves or other control components to control the water output. The overall structure is simple and maintenance-free, requiring no frequent repairs. Only the submersible pump 12 needs to be repaired or replaced.

[0037] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An integrated household sewage treatment device, characterized in that: The device includes a tank containing a pretreatment tank, an equalization tank, and a biological filter. An inlet pipe is connected to the tank at a position corresponding to the pretreatment tank, allowing wastewater to be treated to flow into the pretreatment tank. The upper end of the pretreatment tank is connected to the equalization tank, and the pretreatment tank can discharge pretreated wastewater into the equalization tank. The equalization tank contains a water distribution element that distributes water into the wastewater entering the equalization tank. The biological filter contains filter media elements, and both the upper and lower ends of the biological filter are connected to the equalization tank. The filter media elements treat the wastewater in the biological filter, and the treated water from the biological filter can enter the equalization tank. An outlet pipe for discharging treated wastewater is located on a corresponding side wall of the tank, near the upper end of the equalization tank.

2. The integrated household sewage treatment device according to claim 1, characterized in that: The pretreatment tank includes a primary pretreatment unit and a secondary pretreatment unit, which are separated by a first partition. The first partition is vertically fixed to the inner bottom surface of the tank, and its upper end is flush with the upper end of the tank. The lower end of the first partition has a water passage hole that connects the primary pretreatment unit and the secondary pretreatment unit. One end of the water inlet pipe extends into the primary pretreatment unit, and the upper end of the secondary pretreatment unit is connected to the interior of the regulating tank.

3. The integrated household sewage treatment device according to claim 2, characterized in that: The secondary pretreatment unit is equipped with a regulating water pipe, and the regulating tank is equipped with a distribution water pipe. The upper end of the regulating water pipe is located inside the secondary pretreatment unit, and the upper end of the regulating water pipe is not higher than the upper end of the secondary pretreatment unit. The lower end of the regulating water pipe extends into the regulating tank and is connected to the upper end of the distribution water pipe. The regulating water pipe can pass water from the secondary pretreatment unit into the distribution water pipe.

4. The integrated household sewage treatment device according to claim 3, characterized in that: The water distribution pipe has multiple water distribution holes.

5. The integrated household sewage treatment device according to claim 2, characterized in that: The tank is also equipped with a second baffle, which is perpendicular to the first baffle and is fixed vertically to the inner bottom surface of the tank. The upper end of the second baffle is flush with the upper end of the tank. One side of the second baffle is the pretreatment tank, and the other side of the second baffle is the equalization tank and the biological filter tank.

6. The integrated household sewage treatment device according to claim 5, characterized in that: A third baffle is also installed inside the tank. The third baffle is parallel to the bottom surface of the tank and perpendicular to the second baffle. The third baffle is located on one side of the second baffle. The biological filter is above the third baffle, and the equalization tank is below the third baffle.

7. The integrated household sewage treatment device according to claim 6, characterized in that: The equalization tank is equipped with a submersible sewage pump, the outlet of which is connected to a pumping pipe. The upper end of the pumping pipe can pass through the third partition and extend to the top of the biological filter.

8. The integrated household sewage treatment device according to claim 7, characterized in that: The tank body is also provided with a maintenance hole on its side wall. The maintenance hole is closed by a maintenance door and is located corresponding to the position of the submersible pump.

9. The integrated household sewage treatment device according to claim 6, characterized in that: The regulating tank is also equipped with a filter water pipe. The upper end of the filter water pipe is connected to the third partition and can connect to the bottom of the biological filter. The lower end of the filter water pipe is connected to the bottom surface of the tank and connects to the interior of the regulating tank.

10. The integrated household sewage treatment device according to claim 1, characterized in that: The upper end of the biological filter is equipped with a perforated water distribution plate with multiple perforations. Water in the pretreatment tank can enter the perforated water distribution plate from the upper end of the pretreatment tank and enter the biological filter through the perforations.

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