Precipitating and filtering device for rural domestic sewage treatment

Abstract

The utility model provides a precipitation and filtration device for rural domestic sewage treatment, which relates to the technical field of sewage treatment and comprises a precipitation tank, a first digestion tank, a second digestion tank and a purification tank are arranged in the precipitation tank, stirrers are arranged in the first digestion tank and the second digestion tank, and the first digestion tank and the second digestion tank are connected with the purification tank. Vent holes are formed in the top of the first digestion tank and the top of the second digestion tank, a transfer pipe and a water suction pump are further arranged between the first digestion tank and the second digestion tank, and a filter assembly is arranged between the second digestion tank and the purification tank; the filter assembly comprises a mounting plate and a baffle capable of sliding along the mounting plate, the position close to the top of the mounting plate is hollow, and a filter screen is mounted at the hollow position.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage treatment, and more specifically, to a sedimentation and filtration device for treating rural domestic sewage. Background Technology

[0002] Rural domestic sewage generally consists of sewage generated from rural residents' daily lives and rural public service facilities. Sewage generated from rural residents' daily lives mainly includes kitchen wastewater, domestic washing and bathing wastewater, and toilet wastewater. Inner Mongolia has a variety of landforms, including mountains, hills, high plains, plains, deserts, sandy lands, and plateaus. Due to the diverse landforms, rural households build houses according to the terrain, resulting in houses of varying heights and scattered locations in some areas. Current domestic sewage treatment methods involve the indiscriminate dumping of sewage, which often results in strong odors and poor environmental conditions around the sewage accumulation sites. However, centralized pipe network construction and other sewage treatment methods are difficult to implement and costly. Therefore, it is necessary to establish decentralized sewage treatment facilities. Utility Model Content

[0003] The purpose of this invention is to provide a sedimentation and filtration device for rural domestic sewage treatment, which can treat rural domestic sewage and improve the living environment.

[0004] This utility model is achieved through the following technical solution: it includes a sedimentation tank, in which a first digestion tank, a second digestion tank and a purification tank are provided. A stirrer is provided in both the first digestion tank and the second digestion tank. A venting hole is provided at the top of the first digestion tank and the second digestion tank. A transfer pipe and a water pump are also provided between the first digestion tank and the second digestion tank. A filter assembly is provided between the second digestion tank and the purification tank.

[0005] The filter assembly includes a mounting plate and a baffle that can slide along the mounting plate. The area near the top of the mounting plate is hollow, and a filter screen is installed in the hollow area.

[0006] To better realize this utility model, the filter assembly further includes a vertical rod and a screw. The side of the baffle is provided with a threaded ring and a sliding ring. The threaded ring is sleeved on the outside of the screw, and the sliding ring is sleeved on the outside of the vertical rod. It also includes a drive motor. The output end of the drive motor is provided with an output wheel. The top of the screw is fixedly sleeved with a rotating wheel, and a conveyor belt is provided between the output wheel and the rotating wheel.

[0007] To better realize this utility model, a slider is further provided on the other side of the baffle, and a slide rail is provided on the mounting plate. The slider slides within the slide rail, and the baffle is attached to the surface of the mounting plate.

[0008] To better realize this utility model, a grid plate is further provided near the first digestion tank, and the grid plate and the bottom of the first digestion tank form a sludge accumulation cavity. A discharge port is provided at the bottom of the sedimentation tank, and the discharge port is connected to a discharge pipe.

[0009] To better realize this utility model, furthermore, quartz sand is placed inside the purification tank.

[0010] To better realize this utility model, a dosing pipe is further provided at the top of the first digestive tank, and the other end of the dosing pipe is connected to a medicine storage tank.

[0011] A drug inlet pipe is installed at the top of the second digestion tank, and the other end of the drug inlet pipe is connected to a disinfection box.

[0012] To better realize this utility model, the outer wall of the sedimentation tank is further provided with a heating layer, a heat insulation layer and a protective layer.

[0013] To better realize this utility model, a heating tube is spirally arranged inside the heating layer, a photovoltaic panel is also provided on the top of the sedimentation tank, the photovoltaic panel is electrically connected to a storage device, and the heating tube is electrically connected to the contact device.

[0014] The beneficial effects of this utility model are:

[0015] This invention, through its zoned design within the sedimentation tank, enables wastewater to undergo flocculation, sedimentation, sterilization, and purification. This series of operations ensures that the wastewater is suitable for discharge, reducing environmental pollution and improving the comfort of residents' living environment. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in this utility model will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the sedimentation and filtration device for rural domestic sewage treatment provided by this utility model;

[0018] Figure 2 A partial cross-sectional view of the sedimentation and filtration device for rural domestic sewage treatment provided by this utility model;

[0019] Figure 3 A partial structural schematic diagram of the filter assembly provided by this utility model;

[0020] Figure 4 A side view of the baffle provided by this utility model.

[0021] icon:

[0022] 100-Sedimentation tank, 101-Agitator, 102-Ventilation hole, 103-Transfer pipe, 104-Heating layer, 105-Insulation layer, 106-Protective layer, 107-Heating pipe, 110-First digestion tank, 111-Grid plate, 112-Discharge pipe, 113-Dosing pipe, 120-Second digestion tank, 121-Dosing pipe, 130-Purification tank, 140-Filter assembly, 141-Mounting plate, 142-Baffle, 143-Filter screen, 144-Upright pole, 145-Screw, 146-Threaded ring, 147-Sliding ring, 148-Drive motor, 149-Output wheel, 150-Rotating wheel, 151-Conveyor belt. Detailed Implementation

[0023] The technical solution of this utility model will now be described with reference to the accompanying drawings.

[0024] It should be noted that similar reference numerals 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. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Please refer to Figures 1-4 This utility model provides a sedimentation and filtration device for rural domestic sewage treatment. In the prior art, domestic sewage in relatively remote rural areas often accumulates year after year without treatment. The organic matter in the domestic sewage is extremely unstable and easily decomposes, producing foul odors and affecting the surrounding environment. To solve the above technical problems, this utility model uses a decentralized sedimentation and filtration device for rural domestic sewage treatment to treat domestic sewage in rural areas, reduce the occurrence of sewage decomposition, and improve the comfort of the living environment. The number of this decentralized sedimentation and filtration device can be increased or decreased according to the number of people living together, making it highly flexible in use.

[0026] As shown in the figure, the sedimentation and filtration device for rural domestic sewage treatment mainly includes a sedimentation tank 100. The sedimentation tank 100 is equipped with a first digestion tank 110, a second digestion tank 120, and a purification tank 130. A stirrer 101 is installed in the first digestion tank 110 and the second digestion tank 120. A vent 102 is provided on the top of both the first digestion tank 110 and the second digestion tank 120 to release gas. The first digestion tank 110 is also equipped with a discharge pipe 112 and a dosing pipe 113. The discharge pipe 112 is used to connect to the rural house to transfer the domestic wastewater generated in the house to the first digestion tank 110 for treatment. The other end of the dosing pipe 113 is connected to a storage tank (not shown in the figure). The storage tank contains a chemical agent for sedimentation and flocculation of domestic sewage, such as the coagulant polyacrylamide. The stirrer 101 makes the chemical agent and domestic sewage fully mixed, causing a biochemical reaction and producing precipitates.

[0027] In order to better separate the sediment, a grid plate 111 is also provided near the bottom of the first digestion tank 110. The grid plate 111 has a certain distance from the bottom of the first digestion tank 110, thereby forming a sludge accumulation cavity. A discharge port is opened at the corresponding position at the bottom of the sedimentation tank 100, so that the sediment can be discharged from the discharge port.

[0028] A transfer pipe 103 and a water pump (not shown in the figure) are installed between the first digestion tank 110 and the second digestion tank 120. The domestic sewage treated by the first digestion tank 110 is pumped to the second digestion tank 120 through the transfer pipe 103 by the water pump. The second digestion tank 120 is equipped with a chemical inlet pipe 121, which is connected to a disinfection tank. The disinfection tank contains disinfectants such as sodium hypochlorite and chlorine dioxide. The sewage and disinfectants are thoroughly mixed again by the stirrer 101 in the second digestion tank 120 to carry out the corresponding disinfection and sterilization operations. The treated sewage is then transferred to the purification tank 130 for purification treatment.

[0029] The diverting purification tank 130 is achieved through a filter assembly 140, which includes a mounting plate 141 and a baffle 142 that can slide along the mounting plate 141. The structure of the mounting plate 141 is shown in the figure; its central part is hollow, and a filter screen 143 is installed in the hollow. A biofilm (existing biofilm that can be purchased directly from the market) can also be installed on the side of the filter screen 143. The baffle 142 can move vertically along the mounting plate 141. Specifically, a threaded ring 146 and a sliding ring 147 are provided on one side of the baffle 142, and a slider is provided on the other side. A slide rail is provided on the mounting plate 141, allowing the slider to slide within the slide rail. Additionally, a vertical rod 144 and a screw 145 are provided, with the threaded ring 146 sleeved on the outside of the screw 145 and the sliding ring 147 sleeved on the outside of the vertical rod 144. A rotating wheel 150 is also provided at the top of the screw 145. A further... A drive motor 148 is provided with an output wheel 149 at its output end. A conveyor belt 151 is also provided between the output wheel 149 and the rotating wheel 150. When the drive motor 148 is started, the output wheel 149 is driven to rotate. The rotating wheel 150 is driven by the conveyor belt 151, which in turn drives the screw 145 to rotate. This further enables the baffle 142 to move up and down along the upright 144. When the baffle 142 moves upward, it can prevent the sewage in the second digestion tank 120 from moving into the purification tank 130. When the baffle 142 moves downward, the sewage in the second digestion tank 120 gradually passes through the filter screen 143 and the biofilm and then into the purification tank 130. The biofilm is a complex biological structure formed by the adhesion and growth of microbial communities (bacteria, fungi, protozoa, etc.) on a solid surface or carrier. The material can be polymer fiber. The biofilm further plays a role in adsorbing bacteria, etc.

[0030] The wastewater flowing into the purification tank 130 is further purified, specifically by the quartz sand placed in the purification tank 130 for a second water purification, so that the purified water can be discharged.

[0031] By dividing the sedimentation tank 100 into zones, it can flocculate and settle wastewater, sterilize and disinfect it, and then purify it. After this series of operations, the wastewater can be discharged in a way that reduces environmental pollution and improves the comfort of residents' living environment.

[0032] The workflow of this utility model is as follows:

[0033] Wastewater first flows through the pipe into the first digestion tank 110, where flocculants are added to cause flocculation and sedimentation. The sediment can be discharged at the bottom. The treated wastewater is then pumped to the second digestion tank 120 for further disinfection with a disinfectant. Then, driven by the motor 148, the baffle 142 moves downward, exposing the filter screen 143 and the biofilm. The wastewater then passes through the filter screen 143 and the biofilm and flows into the purification tank 130, where it is purified again before being discharged.

[0034] To better adapt to the regional characteristics, Inner Mongolia, located in the north, experiences a long winter with low temperatures lasting up to 6 months. In areas such as Hulunbuir, Hinggan League, and Xilingol League, the lowest winter temperatures can reach -37.6℃. Due to the relatively low ambient temperature, a heating layer 104, an insulation layer 105, and a protective layer 106 are installed on the outer wall of the sedimentation tank 100. The heating layer 104 contains a spirally arranged heating pipe 107. The top of the sedimentation tank 100 is also equipped with a photovoltaic panel and a power storage device. The photovoltaic panel is electrically connected to the power storage device, allowing the solar energy received by the photovoltaic panel to be converted into electrical energy and stored in the power storage device. The power storage device is also electrically connected to the heating pipe 107, providing power to the heating pipe 107 to heat and insulate the sedimentation tank 100, preventing the internal environment from being affected by the cold weather. The insulation layer 105 is filled with insulation cotton and other filling materials, and the protective layer 106 is a shell structure.

[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A sedimentation and filtration device for rural domestic sewage treatment, characterized in that, The system includes a sedimentation tank (100), which is provided with a first digestion tank (110), a second digestion tank (120), and a purification tank (130). A stirrer (101) is provided in both the first digestion tank (110) and the second digestion tank (120). A venting hole (102) is provided at the top of the first digestion tank (110) and the second digestion tank (120). A transfer pipe (103) and a water pump are also provided between the first digestion tank (110) and the second digestion tank (120). A filter assembly (140) is provided between the second digestion tank (120) and the purification tank (130). The filter assembly (140) includes a mounting plate (141) and a baffle (142) that can slide along the mounting plate (141). The top of the mounting plate (141) is hollow, and a filter screen (143) is installed in the hollow position.

2. The sedimentation and filtration device for rural domestic sewage treatment according to claim 1, characterized in that, The filter assembly (140) also includes a vertical rod (144) and a screw (145). The side of the baffle (142) is provided with a threaded ring (146) and a sliding ring (147). The threaded ring (146) is sleeved on the outside of the screw (145), and the sliding ring (147) is sleeved on the outside of the vertical rod (144). It also includes a drive motor (148). The output end of the drive motor (148) is provided with an output wheel (149). The top of the screw (145) is fixedly sleeved with a rotating wheel (150). A conveyor belt (151) is provided between the output wheel (149) and the rotating wheel (150).

3. The sedimentation and filtration device for rural domestic sewage treatment according to claim 2, characterized in that, A slider is provided on the other side of the baffle (142), and a slide rail is provided on the mounting plate (141). The slider slides within the slide rail, and the baffle (142) is attached to the surface of the mounting plate (141).

4. The sedimentation and filtration device for rural domestic sewage treatment according to claim 1, characterized in that, A grid plate (111) is provided near the first digestion tank (110), and the grid plate (111) and the bottom of the first digestion tank (110) form a sludge accumulation cavity. A discharge port is provided at the bottom of the sedimentation tank (100), and the discharge port is connected to a discharge pipe (112).

5. The sedimentation and filtration device for rural domestic sewage treatment according to claim 1, characterized in that, Quartz sand is placed inside the purification tank (130).

6. The sedimentation and filtration device for rural domestic sewage treatment according to claim 1, characterized in that, A dosing pipe (113) is also provided at the top of the first digestion tank (110), and the other end of the dosing pipe (113) is connected to a medicine storage tank; A drug inlet pipe (121) is provided at the top of the second digestion tank (120), and the other end of the drug inlet pipe (121) is connected to a disinfection box.

7. The sedimentation and filtration device for rural domestic sewage treatment according to claim 1, characterized in that, The outer wall of the sedimentation tank (100) is also provided with a heating layer (104), a heat insulation layer (105) and a protective layer (106).

8. The sedimentation and filtration device for rural domestic sewage treatment according to claim 7, characterized in that, A heating tube (107) is spirally arranged inside the heating layer (104), and a photovoltaic panel is also provided on the top of the sedimentation tank (100). The photovoltaic panel is electrically connected to a storage device, and the heating tube (107) is electrically connected to the storage device.

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