Feces collection wastewater treatment device

Abstract

The utility model relates to the technical field of wastewater treatment, and discloses an excrement collection wastewater treatment device, which comprises a box body, and a first reactor, a second reactor, a third reactor, a first separation part and a second separation part which are arranged in the box body, the first separation part and the second separation part are both used for separating liquid and solid in the excrement collection wastewater, the first reactor and the third reactor are both used for performing anaerobic treatment on the excrement collection wastewater, and the second reactor is used for performing aerobic treatment on the excrement collection wastewater; reaction cavities are formed in the first reactor, the second reactor and the third reactor, connecting assemblies are arranged in the reaction cavities, a plurality of hollow reaction balls are arranged on the connecting assemblies in a penetrating mode, inner cavities of the hollow reaction balls are filled with reaction filler, and harmful substances in the excrement collection wastewater can be attached to the reaction filler. According to the excrement collection wastewater treatment device, the number of times of decomposing harmful substances in the excrement collection wastewater is increased, and the content of the harmful substances in the excrement collection wastewater is reduced, so that the emission requirement is met.

Description

Technical Field

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

[0002] To ensure the hygiene of the train environment and the comfort of passengers, the excrement collected on the train must be transported to a specialized wastewater treatment plant for centralized treatment after the train arrives at the station. This process removes harmful substances such as organic matter, nitrogen compounds, and pathogens from the wastewater, ensuring it meets discharge standards. The treatment of excrement wastewater mainly includes three stages: pretreatment, biological treatment, and advanced treatment. The biological treatment stage primarily utilizes a fixed-bed reactor for anaerobic and aerobic treatment of the wastewater. After aerobic treatment, a separator is used to separate the liquid from the sludge in the wastewater, thereby reducing the concentration of organic matter and nitrogen compounds.

[0003] Currently, biological wastewater treatment often involves setting up multiple treatment tanks within the treatment plant, with fixed-bed reactors and separators located separately within these tanks. This results in significant space requirements and increased costs. Furthermore, wastewater that has undergone anaerobic, aerobic, and solid-liquid separation treatments still contains organic matter and nitrogen compounds, preventing it from meeting discharge standards and causing environmental pollution. In addition, existing fixed-bed reactors treat wastewater by filling multiple porous media containing catalytic substances that decompose harmful substances in the wastewater. However, as wastewater flows through the reactor, the impact force causes the porous media to move within the reactor, easily clogging it.

[0004] Therefore, there is an urgent need for a wastewater treatment device to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a wastewater treatment device for fecal wastewater, which increases the number of times harmful substances in the wastewater are decomposed, so that the wastewater can be fully biochemically treated and the content of harmful substances in the wastewater can be reduced to meet the discharge requirements.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A wastewater treatment device for fecal waste is provided, including a tank. The inner cavity of the tank is provided with a first reactor, a second reactor, a third reactor, a first separator, and a second separator. The first separator and the second separator are both used to separate liquids and solids in the wastewater. The first reactor and the third reactor are both used to perform anaerobic treatment on the wastewater, and the second reactor is used to perform aerobic treatment on the wastewater.

[0008] The first, second, and third reactors are all equipped with reaction chambers, and the reaction chambers are equipped with connecting components. Multiple hollow reaction balls are inserted through the connecting components, and the inner cavity of the hollow reaction balls is filled with reaction packing material, so that harmful substances in the wastewater can adhere to the reaction packing material.

[0009] The tank is equipped with a sludge inlet and a liquid outlet. The second separator includes a first sludge outlet and a first liquid outlet. The sludge inlet is connected to the reaction chamber of the first reactor. The first reactor is connected to the second reactor. The second reactor is connected to the first separator. The first separator is connected to both the first reactor and the third reactor. The third reactor is connected to the second separator. The first sludge outlet is connected to the reaction chamber of the third reactor. The first liquid outlet is connected to the liquid outlet.

[0010] Optionally, the connecting assembly includes a connecting bracket extending in a horizontal direction, the connecting bracket being connected to the cavity wall of the reaction chamber, the connecting bracket being provided with a plurality of connecting shafts arranged at intervals in a horizontal direction, the connecting shafts passing through a plurality of hollow reaction balls in a vertical direction, and any two adjacent hollow reaction balls in the horizontal or vertical direction being fitted with a gap.

[0011] Optionally, the first separation element includes a second sludge outlet and a second liquid outlet. The second sludge outlet is connected to the reaction chamber of the first reactor, and the second liquid outlet is connected to the reaction chamber of the third reactor. Solid sludge in the wastewater can enter the reaction chamber of the first reactor through the second sludge outlet, and liquid water in the wastewater can enter the reaction chamber of the third reactor through the second liquid outlet.

[0012] Optionally, the first separation element is provided with a first separation chamber, the second sludge outlet is provided at the bottom of the first separation chamber, the second liquid outlet is provided at the top of the first separation chamber, and the first centrifugal pump is provided in the first separation chamber. The first centrifugal pump is used to drive the collected wastewater to rotate spirally in the first separation chamber to separate solid sludge and liquid water.

[0013] The second separation unit is provided with a second separation chamber. The first sludge outlet is located at the bottom of the second separation chamber, and the first liquid outlet is located at the top of the second separation chamber. The second centrifugal pump is provided in the second separation chamber. The second centrifugal pump is used to drive the collected wastewater to rotate in a spiral manner in the second separation chamber to separate solid sludge and liquid water.

[0014] Optionally, the first centrifugal pump includes a first rotary drive and a first helical blade, the first helical blade extending vertically, and the output end of the first rotary drive connected to the first helical blade for driving the first helical blade to rotate; the second centrifugal pump includes a second rotary drive and a second helical blade, the second helical blade extending vertically, and the output end of the second rotary drive connected to the second helical blade for driving the second helical blade to rotate.

[0015] Optionally, the wastewater treatment device also includes a filter element installed at the drain outlet. The filter element is detachably connected to the housing and is used to filter impurities in the wastewater after it has been separated by the second separator.

[0016] Alternatively, the wastewater treatment device may also include a filter element installed at the first outlet, which is detachably connected to the second separator and is used to filter impurities in the wastewater after it has been separated by the second separator.

[0017] Optionally, the housing or the second separator is provided with slots into which the filter element is inserted.

[0018] Optionally, the reaction chambers of the first reactor, the second reactor, and the third reactor are each equipped with several aerators. The wastewater treatment device also includes multiple air extraction components installed in the housing. Each aerator is connected to an air extraction component, which is used to draw air to the corresponding aerator. The aerator is configured to deliver air to the corresponding reaction chamber to change the oxygen content in the wastewater.

[0019] Optionally, the wastewater treatment device also includes connecting pipelines, which connect the inlet to the reaction chamber of the first reactor, the first reactor to the second reactor, the second reactor to the first separator, the first separator to the first reactor, the first separator to the third reactor, the third reactor to the second separator, and the second separator to the outlet.

[0020] Optionally, the wastewater treatment device also includes an electrical control cabinet and a ventilation fan installed in the inner cavity of the tank. The electrical control cabinet is electrically connected to the ventilation fan, the first reactor, the second reactor, the third reactor, the first separator, and the second separator. The ventilation fan is used to accelerate the airflow in the inner cavity of the tank.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] This invention provides a wastewater treatment device for fecal wastewater. The first, second, and third reactors for decomposing harmful substances in the wastewater, as well as the first and second separators for separating liquids and solids in the wastewater, are all integrated into the inner cavity of a housing. The entire housing can be installed within a treatment plant, eliminating the need to dig a treatment tank, thus reducing the space occupied by the wastewater treatment and lowering the cost. The connecting components constrain the position of the multiple perforated reaction balls connected to them, preventing the perforated reaction balls from moving within the reaction chamber under the impact of the wastewater, effectively avoiding blockage of the reaction chamber and ensuring smooth flow of the wastewater within the reaction chamber. In the process of treating sewage wastewater, the sewage wastewater first enters the reaction chamber of the first reactor through the inlet. The harmful substances in the sewage wastewater can adhere to the reaction packing and be decomposed under anaerobic conditions. Then, the sewage wastewater enters the second reactor from the first reactor, where the harmful substances are further oxidized and decomposed under aerobic conditions. When the sewage wastewater enters the first separation unit from the second reactor, the solids and liquids in the sewage wastewater are separated. The separated solids can re-enter the first reactor for further decomposition, while the separated liquids can enter the third reactor for continued anaerobic treatment. The sewage wastewater entering the second separation unit undergoes solid-liquid separation again. The separated solids can enter the third reaction chamber through the first sludge outlet for further decomposition, while the separated liquids can be discharged through the first liquid outlet and the discharge outlet. Compared with existing sewage wastewater treatment devices, the sewage wastewater treatment device provided by this utility model is equipped with an additional third reactor and a second separator, and the separated solids are further decomposed, which significantly increases the number of times harmful substances in the sewage wastewater are decomposed, so that the sewage wastewater can be fully biochemically treated, reducing the content of harmful substances in the sewage wastewater and improving the treatment effect of sewage wastewater, so that the sewage wastewater discharged from the discharge port can meet the discharge requirements. Attached Figure Description

[0023] Figure 1 A plan view of the wastewater treatment device provided by this utility model;

[0024] Figure 2 for Figure 1 AA cross-section view;

[0025] Figure 3 for Figure 1 BB cross-section.

[0026] in:

[0027] 1. Housing; 11. Drainage outlet; 12. Equipment space;

[0028] 21. First reactor; 22. Second reactor; 23. Third reactor; 24. Reaction chamber; 25. Connecting assembly; 251. Connecting bracket; 252. Connecting shaft; 26. Hollowed-out reaction ball; 27. Aerator;

[0029] 3. First separating component; 31. First separating chamber; 32. First centrifugal pump; 321. First rotary drive component; 322. First helical blade;

[0030] 4. Second separating component; 41. First liquid outlet; 42. Second separating chamber; 43. Second centrifugal pump; 431. Second rotary drive component; 432. Second helical blade; 44. Slot;

[0031] 5. Filter components;

[0032] 6. Connect the pipes. Detailed Implementation

[0033] It should be understood that in the description of this utility model, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] It should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] like Figures 1 to 3 As shown, this embodiment provides a wastewater treatment device that increases the number of times harmful substances in the wastewater are decomposed, enabling the wastewater to be fully biochemically treated and reducing the content of harmful substances in the wastewater to meet discharge requirements.

[0037] See Figure 1 and Figure 2The wastewater treatment device includes a housing 1. The inner cavity of the housing 1 houses a first reactor 21, a second reactor 22, a third reactor 23, a first separator 3, and a second separator 4. Both the first separator 3 and the second separator 4 are used to separate liquids and solids in the wastewater. The first reactor 21 and the third reactor 23 are used for anaerobic treatment of the wastewater, while the second reactor 22 is used for aerobic treatment. Each of the first reactor 21, the second reactor 22, and the third reactor 23 has a reaction chamber 24. A connecting assembly 25 is installed within each reaction chamber 24, and multiple perforated reaction balls 26 are threaded through the connecting assembly 25. The hollow reaction ball 26 is filled with reaction packing material, which allows harmful substances in the wastewater to adhere to the reaction packing material. The tank 1 is provided with a sludge inlet and a liquid outlet 11. The second separator 4 includes a first sludge outlet and a first liquid outlet 41. The sludge inlet is connected to the reaction chamber 24 of the first reactor 21. The first reactor 21 is connected to the second reactor 22. The second reactor 22 is connected to the first separator 3. The first separator 3 is connected to the first reactor 21 and the third reactor 23. The third reactor 23 is connected to the second separator 4. The first sludge outlet is connected to the reaction chamber 24 of the third reactor 23. The first liquid outlet 41 is connected to the liquid outlet 11.

[0038] The wastewater treatment device provided in this embodiment integrates the first reactor 21, the second reactor 22, and the third reactor 23 for decomposing harmful substances in the wastewater, as well as the first separator 3 and the second separator 4 for separating liquids and solids in the wastewater, all within the inner cavity of the housing 1. The housing 1 can be installed within the treatment plant, eliminating the need to dig a treatment tank, thus reducing the space occupied by wastewater treatment and lowering its cost. The connecting component 25 constrains the position of the multiple perforated reaction balls 26 connected to it, preventing the perforated reaction balls 26 from moving within the reaction chamber 24 under the impact of the wastewater, effectively avoiding blockage of the reaction chamber 24 by the perforated reaction balls 26, and ensuring smooth flow of the wastewater within the reaction chamber 24. In the process of treating sewage wastewater, the sewage wastewater first enters the reaction chamber 24 of the first reactor 21 through the inlet. The harmful substances in the sewage wastewater can adhere to the reaction packing and be decomposed under anaerobic conditions. Then, the sewage wastewater enters the second reactor 22 from the first reactor 21, where the harmful substances are further oxidized and decomposed under aerobic conditions. When the sewage wastewater enters the first separator 3 from the second reactor 22, the solids and liquids in the sewage wastewater are separated. The separated solids can re-enter the first reactor 21 for further decomposition, and the separated liquids can enter the third reactor 23 for continued anaerobic treatment. The sewage wastewater entering the second separator 4 undergoes solid-liquid separation again. The separated solids can enter the third reaction chamber 24 through the first sludge outlet for further decomposition, and the separated liquids can be discharged through the first liquid outlet 41 and the discharge outlet 11. Compared with existing sewage wastewater treatment devices, the sewage wastewater treatment device provided by this utility model is equipped with an additional third reactor 23 and a second separator 4, and the separated solids are further decomposed, which significantly increases the number of times harmful substances in the sewage wastewater are decomposed, so that the sewage wastewater can be fully biochemically treated, reducing the content of harmful substances in the sewage wastewater and improving the treatment effect of sewage wastewater, so that the sewage wastewater discharged from the discharge port 11 can meet the discharge requirements.

[0039] Specifically, in the first reactor 21, the oxygen content in the reaction chamber 24 is relatively low, which makes the wastewater anaerobic. The organic matter and nitrogen compounds in the wastewater adhere to the reaction packing and are decomposed by anaerobic bacteria into substances such as organic acids, ketones and ammonia nitrogen, creating favorable conditions for subsequent aerobic treatment. In the second reactor 22, the oxygen content in the reaction chamber 24 is relatively high, placing the wastewater in an aerobic state. Organic acids, ketones, and ammonia nitrogen can adhere to the reaction packing material and be oxidized and decomposed by aerobic bacteria into harmless substances such as carbon dioxide and purified water, thus removing ammonia nitrogen from the wastewater. Simultaneously, by controlling the dissolved oxygen concentration in the reaction chamber 24 of the second reactor 22, some areas of the reaction chamber 24 can be made aerobic, while other areas can be made anoxic. This allows for simultaneous nitrification and denitrification reactions in the second reactor 22, where ammonia nitrogen is oxidized by nitrifying bacteria into nitrite and nitrate. The nitrite and nitrate can then be reduced back to nitrogen gas, which escapes from the wastewater, achieving the removal of both ammonia nitrogen and total nitrogen from the wastewater. The reactions occurring in the third reactor 23 are the same as in the first reactor 21 and will not be described further here.

[0040] Furthermore, the reaction packing material is filled inside the hollow reaction ball 26, which allows harmful substances in the wastewater to be temporarily stored in the reaction chamber 24, so that the harmful substances can be effectively decomposed and the treatment effect of the wastewater can be improved. When the reaction packing material can no longer be attached to harmful substances, the operator can directly replace the corresponding hollow reaction ball 26. The operation is convenient and quick, and it is easy to use in integrated wastewater treatment devices.

[0041] Optionally, see Figure 2 and Figure 3The connecting component 25 includes a connecting bracket 251 extending in the horizontal direction. The connecting bracket 251 is connected to the cavity wall of the reaction chamber 24. The connecting bracket 251 is provided with a plurality of connecting shafts 252 arranged at intervals in the horizontal direction. The connecting shafts 252 pass through a plurality of hollow reaction balls 26 in the vertical direction, and any two adjacent hollow reaction balls 26 in the horizontal or vertical direction are fitted with a gap. The connecting bracket 251 provides support for the installation of the connecting shaft 252 in the reaction chamber 24. The connecting shaft 252 can fix the position of the hollow reaction ball 26 connected to it, preventing the hollow reaction ball 26 from moving under the impact of the wastewater. The multiple hollow reaction balls 26 limited by the connecting bracket 251 and the connecting shaft 252 can be arranged in a matrix in the reaction chamber 24, which is more neat. After the reaction packing in the hollow reaction ball 26 is consumed, it is convenient for the staff to quickly replace the hollow reaction ball 26. The gap fit between any two adjacent hollow reaction balls 26 in the horizontal and vertical directions allows the hollow reaction ball 26 to move slightly under the impact of the wastewater, so as to reduce the impact force on the hollow reaction ball 26 and avoid clogging the reaction chamber 24 and damage to the hollow reaction ball 26.

[0042] For example, the connecting bracket 251 includes a steel pipe and an angle iron. The steel pipe is fixed to the cavity wall of the reaction chamber 24 by the angle iron. The connecting shaft 252 is a rope or wire so that the connecting shaft 252 can pass through a small hole in the hollow reaction ball 26.

[0043] Optionally, the first separator 3 includes a second sludge outlet and a second liquid outlet. The second sludge outlet is connected to the reaction chamber 24 of the first reactor 21, and the second liquid outlet is connected to the reaction chamber 24 of the third reactor 23. Solid sludge in the wastewater can enter the reaction chamber 24 of the first reactor 21 through the second sludge outlet, and liquid water in the wastewater can enter the reaction chamber 24 of the third reactor 23 through the second liquid outlet. The residual organic matter and nitrogen compounds in the solid sludge entering the first reactor 21 can be decomposed, improving the treatment effect of the wastewater. Moreover, the organic matter carried in the solid sludge can react with the wastewater in the reaction chamber 24 of the first reactor 21 to remove total nitrogen from the wastewater using the solid sludge, thus reducing the cost of wastewater treatment.

[0044] In this embodiment, see Figure 2 and Figure 3The first separating element 3 has a first separating chamber 31. A second sludge outlet is located at the bottom of the first separating chamber 31, and a second liquid outlet (not shown in the figure) is located at the top of the first separating chamber 31. A first centrifugal pump 32 is installed in the first separating chamber 31. The first centrifugal pump 32 is used to drive the wastewater to rotate spirally in the first separating chamber 31 to separate solid sludge and liquid water. Under the centrifugal force of the first centrifugal pump 32, the wastewater in the first separating chamber 31 can rotate spirally, separating the solid sludge from the liquid water. The solid sludge is located around the liquid water, and the separated solid sludge can fall down the side wall of the first separating chamber 31 to the bottom of the first separating chamber 31 under its own gravity and be discharged from the second sludge outlet. The separated liquid water can flow upward under the centrifugal force and gradually flow to the second liquid outlet for discharge.

[0045] The second separator 4 is provided with a second separation chamber 42. A first sludge outlet is located at the bottom of the second separation chamber 42, and a first liquid outlet 41 is located at the top of the second separation chamber 42. A second centrifugal pump 43 is provided in the second separation chamber 42. The second centrifugal pump 43 is used to drive the wastewater to rotate spirally in the second separation chamber 42 to separate solid sludge and liquid water. The separation process of the wastewater in the second separator 4 is the same as that in the first separator 3, and will not be described again here.

[0046] Specifically, see Figure 2 and Figure 3 The first centrifugal pump 32 includes a first rotary drive 321 and a first helical blade 322. The first helical blade 322 extends vertically, and the output end of the first rotary drive 321 is connected to the first helical blade 322 to drive the first helical blade 322 to rotate. The first rotary drive 321 drives the first helical blade 322 to rotate, and the first helical blade 322 can drive the collected wastewater to rotate spirally in the first separation chamber 31, and drive the liquid water to flow from bottom to top, so as to realize the separation of solid sludge and liquid water and the discharge of liquid water from the second outlet.

[0047] The second centrifugal pump 43 includes a second rotary drive 431 and a second helical blade 432. The second helical blade 432 extends vertically, and the output end of the second rotary drive 431 is connected to the second helical blade 432 to drive the second helical blade 432 to rotate. The working principle of the second rotary drive 431 and the second helical blade 432 is the same as that of the first rotary drive 321 and the first helical blade 322, and will not be described again here.

[0048] For example, both the first rotary drive 321 and the second rotary drive 431 are motors.

[0049] In an optional embodiment, the wastewater treatment device further includes a filter element 5 disposed at the drain outlet 11. The filter element 5 is detachably connected to the housing 1 and is used to filter impurities, such as tiny suspended solids and particulate matter, in the wastewater after it has been separated by the second separator 4, further improving the clarity of the wastewater. After the filter element 5 has been filtering for a certain period of time, suspended solids and particulate matter will accumulate on the filter element 5, affecting the filtration effect of the filter element 5 and the discharge of liquid water. At this time, the operator can remove the filter element 5 from the housing 1 and install a new filter element 5 at the drain outlet 11. That is, the detachable connection between the filter element 5 and the housing 1 makes it convenient for the operator to replace the filter element 5.

[0050] In this embodiment, the housing 1 is provided with a slot 44, and the filter element 5 is inserted into the slot 44 to achieve a detachable connection between the filter element 5 and the housing 1. When the filter element 5 needs to be replaced, it can be removed from the slot 44, which is convenient and quick.

[0051] In other embodiments, the filter element 5 and the housing 1 can also be detachably connected by bolts or screws.

[0052] For example, filter element 5 is a filter screen.

[0053] In another alternative embodiment, see [link to relevant documentation] Figure 1 and Figure 2 The wastewater treatment device also includes a filter element 5 installed at the first outlet 41. The filter element 5 is detachably connected to the second separator 4 and is used to filter impurities in the wastewater after it has been separated by the second separator 4, so as to improve the clarity of the wastewater.

[0054] In this embodiment, participants Figure 1 and Figure 2 The second separator 4 is provided with a slot 44, and the filter element 5 is inserted into the slot 44 to realize the detachable connection between the filter element 5 and the second separator 4.

[0055] In other embodiments, the filter element 5 and the housing 1 can also be detachably connected by bolts or screws.

[0056] Optionally, see Figure 2 and Figure 3 Each of the reaction chambers 24 of the first reactor 21, the second reactor 22, and the third reactor 23 is equipped with a number of aerators 27. The wastewater treatment device also includes multiple air extraction components installed in the housing 1. Each aerator 27 is connected to an air extraction component, which is used to draw air to the corresponding aerator 27. The aerator 27 is configured to deliver air to the corresponding reaction chamber 24 to change the oxygen content in the wastewater, so that the wastewater entering the reaction chamber 24 can be biologically treated in an aerobic or anaerobic environment.

[0057] Specifically, after air is delivered into aerator 27, a large number of bubbles are formed inside. These bubbles are gradually pushed upwards to the surface of the wastewater by the airflow. During the process of the bubbles rising to the surface, they can fully contact the wastewater, and oxygen molecules can diffuse from the bubbles into the wastewater, thereby increasing the concentration of dissolved oxygen in the wastewater and enabling the wastewater to be treated under aerobic conditions. By adjusting the operating parameters of aerator 27, such as reducing the number of aerators 27 that are turned on, or reducing the aeration pressure or flow rate of aerator 27, the amount of air entering the wastewater can be reduced, thereby lowering the concentration of dissolved oxygen in the wastewater and enabling the wastewater to be treated under anaerobic conditions.

[0058] For example, the air extraction component uses an air pump.

[0059] Optionally, see Figure 1 , Figure 2 and Figure 3 The wastewater treatment device also includes a connecting pipe 6. The inlet is connected to the reaction chamber 24 of the first reactor 21, the first reactor 21 is connected to the second reactor 22, the second reactor 22 is connected to the first separator 3, the first separator 3 is connected to the first reactor 21, the first separator 3 is connected to the third reactor 23, the third reactor 23 is connected to the second separator 4, and the second separator 4 is connected to the outlet 11. This allows the wastewater to flow between the first reactor 21, the second reactor 22, the third reactor 23, the first separator 3, and the second separator 4.

[0060] For example, connecting pipe 6 is a water pipe.

[0061] Optionally, the wastewater treatment device also includes an electrical control cabinet and a ventilation fan installed inside the housing 1. The electrical control cabinet is electrically connected to the ventilation fan, the first reactor 21, the second reactor 22, the third reactor 23, the first separator 3, and the second separator 4. The ventilation fan is used to accelerate the airflow inside the housing 1 to reduce the temperature inside the housing 1 and to expel moisture, heat, and odors from the housing 1, ensuring the safe operation of the wastewater treatment device. The electrical control cabinet provides power for the movement of the aerator 27, the air extraction component, the first rotary drive component 321, and the second rotary drive component 431. It also features a compact structure, complete functions, high reliability, and ease of maintenance, enabling the integration, distribution, and control of electrical energy within the integrated wastewater treatment device.

[0062] Further, see Figure 1 and Figure 2The enclosure 1 has an internal cavity including an equipment space 12, where the current collector cabinet and ventilation fan are located. The enclosure 1 is also equipped with a door, through which personnel can enter the equipment space 12 to perform maintenance on the current collector cabinet and ventilation fan.

[0063] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model fall within the protection and disclosure scope of the present utility model.

Claims

1. A wastewater treatment device, characterized in that, The system includes a housing (1), the inner cavity of which is provided with a first reactor (21), a second reactor (22), a third reactor (23), a first separator (3), and a second separator (4). The first separator (3) and the second separator (4) are both used to separate liquids and solids in the wastewater. The first reactor (21) and the third reactor (23) are both used to anaerobically treat the wastewater. The second reactor (22) is used to aerobically treat the wastewater. The first reactor (21), the second reactor (22) and the third reactor (23) are all provided with a reaction chamber (24). The reaction chamber (24) is provided with a connecting component (25). Multiple hollow reaction balls (26) are inserted through the connecting component (25). The inner cavity of the hollow reaction balls (26) is filled with reaction packing material. The harmful substances in the wastewater can adhere to the reaction packing material. The housing (1) is provided with a sludge inlet and a liquid outlet (11). The second separator (4) includes a first sludge outlet and a first liquid outlet (41). The sludge inlet is connected to the reaction chamber (24) of the first reactor (21). The first reactor (21) is connected to the second reactor (22). The second reactor (22) is connected to the first separator (3). The first separator (3) is connected to the first reactor (21) and the third reactor (23). The third reactor (23) is connected to the second separator (4). The first sludge outlet is connected to the reaction chamber (24) of the third reactor (23). The first liquid outlet (41) is connected to the liquid outlet (11).

2. The wastewater treatment device according to claim 1, characterized in that, The connecting assembly (25) includes a connecting bracket (251) extending in the horizontal direction. The connecting bracket (251) is connected to the cavity wall of the reaction chamber (24). The connecting bracket (251) is provided with a plurality of connecting shafts (252) arranged at intervals in the horizontal direction. The connecting shafts (252) pass through a plurality of hollow reaction balls (26) in the vertical direction, and any two adjacent hollow reaction balls (26) in the horizontal or vertical direction are fitted with a gap.

3. The wastewater treatment device according to claim 1, characterized in that, The first separator (3) includes a second sludge outlet and a second liquid outlet. The second sludge outlet is connected to the reaction chamber (24) of the first reactor (21), and the second liquid outlet is connected to the reaction chamber (24) of the third reactor (23). The solid sludge in the wastewater can enter the reaction chamber (24) of the first reactor (21) through the second sludge outlet, and the liquid water in the wastewater can enter the reaction chamber (24) of the third reactor (23) through the second liquid outlet.

4. The wastewater treatment device according to claim 3, characterized in that, The first separation member (3) is provided with a first separation chamber (31), the second sludge outlet is provided at the bottom of the first separation chamber (31), the second liquid outlet is provided at the top of the first separation chamber (31), and the first centrifugal pump (32) is provided in the first separation chamber (31). The first centrifugal pump (32) is used to drive the wastewater to rotate spirally in the first separation chamber (31) to separate the solid sludge and the liquid water. The second separation component (4) is provided with a second separation chamber (42), the first sludge outlet is provided at the bottom of the second separation chamber (42), the first liquid outlet (41) is provided at the top of the second separation chamber (42), and a second centrifugal pump (43) is provided in the second separation chamber (42). The second centrifugal pump (43) is used to drive the collected wastewater to rotate spirally in the second separation chamber (42) to separate the solid sludge and the liquid water.

5. The wastewater treatment device according to claim 4, characterized in that, The first centrifugal pump (32) includes a first rotary drive (321) and a first helical blade (322). The first helical blade (322) extends in a vertical direction. The output end of the first rotary drive (321) is connected to the first helical blade (322) to drive the first helical blade (322) to rotate. The second centrifugal pump (43) includes a second rotary drive (431) and a second helical blade (432). The second helical blade (432) extends in a vertical direction. The output end of the second rotary drive (431) is connected to the second helical blade (432) to drive the second helical blade (432) to rotate.

6. The wastewater treatment device according to claim 1, characterized in that, The wastewater treatment device also includes a filter element (5) installed at the drain outlet (11). The filter element (5) is detachably connected to the box body (1) and is used to filter impurities in the wastewater after it has been separated by the second separator (4). Alternatively, the wastewater treatment device may further include a filter element (5) disposed at the first outlet (41), the filter element (5) being detachably connected to the second separator (4) for filtering impurities in the wastewater after it has been separated by the second separator (4).

7. The wastewater treatment device according to claim 6, characterized in that, The housing (1) or the second separator (4) is provided with a slot (44), and the filter element (5) is inserted into the slot (44).

8. The wastewater treatment device according to claim 1, characterized in that, The reaction chamber (24) of the first reactor (21), the reaction chamber (24) of the second reactor (22), and the reaction chamber (24) of the third reactor (23) are all equipped with a plurality of aerators (27). The wastewater treatment device also includes a plurality of air extraction components installed in the housing (1). Each aerator (27) is connected to an air extraction component. The air extraction component is used to draw air to the corresponding aerator (27). The aerator (27) is configured to deliver the air to the corresponding reaction chamber (24) to change the oxygen content in the wastewater.

9. The wastewater treatment device according to any one of claims 1-8, characterized in that, The wastewater treatment device further includes a connecting pipe (6), through which the inlet is connected to the reaction chamber (24) of the first reactor (21), the first reactor (21) and the second reactor (22), the second reactor (22) and the first separator (3), the first separator (3) and the first reactor (21), the first separator (3) and the third reactor (23), the third reactor (23) and the second separator (4), and the second separator (4) and the drain (11).

10. The wastewater treatment device according to any one of claims 1-8, characterized in that, The wastewater treatment device also includes a power collection cabinet and a ventilation fan installed in the inner cavity of the box (1). The power collection cabinet is electrically connected to the ventilation fan, the first reactor (21), the second reactor (22), the third reactor (23), the first separator (3), and the second separator (4). The ventilation fan is used to accelerate the airflow in the inner cavity of the box (1).

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