Drop reoxygenation multi-stage AAO rural domestic sewage treatment device

Abstract

The utility model discloses a drop reoxygenation multi-stage AAO rural domestic sewage treatment device, and belongs to the technical field of domestic sewage treatment devices, the drop reoxygenation multi-stage AAO rural domestic sewage treatment device comprises a fixed frame, two groups of sewage treatment sections are mounted in the fixed frame, the two groups of sewage treatment sections are distributed up and down, and a drop device is mounted between the two groups of sewage treatment sections; each of the two groups of sewage treatment sections comprises an anaerobic-anoxic section and an aerobic section, the anaerobic-anoxic section and the aerobic section are connected through a pipeline, a water outlet is formed in one side of one group of water outlets, one end of the water drop device is fixedly connected with one side of the aerobic section and is communicated with the water outlet, and the other end of the water drop device is positioned above the other group of anaerobic-anoxic section; a water suction pump II is mounted on one side of the aerobic section below the fixed frame; the sewage treatment device can gradually reduce the concentration of pollutants in sewage and improve the treatment efficiency through a plurality of anaerobic-anoxic-aerobic cycles, also has a multi-stage treatment design, effectively saves the space, and is suitable for the condition that the land gradient of a rural area is limited.

Description

Technical Field

[0001] The present application relates to the technical field of domestic sewage treatment devices, and in particular to a waterfall reoxygenation multi-stage AAO rural domestic sewage treatment device. Background Art

[0002] A waterfall reoxygenation multi-stage AAO rural domestic sewage treatment device is designed to meet the domestic sewage treatment needs in rural areas. It combines waterfall reoxygenation technology with multi-stage AAO process to achieve efficient and low-cost sewage treatment.

[0003] Rural domestic sewage has the characteristics of complex composition, small and dispersed water volume, and intermittent discharge. The existing treatment equipment cannot adapt well to the requirements of sewage treatment, and some equipment is greatly affected by the slope and is difficult to use in some areas with smaller slopes. Utility Model Content

[0004] In response to the shortcomings of the existing technology, this application provides a waterfall reoxygenation multi-stage AAO rural domestic sewage treatment device, which overcomes the shortcomings of the existing technology and aims to solve the problems that the existing treatment devices in the existing technology cannot adapt well to the requirements of sewage treatment, and some devices are greatly affected by the slope and are difficult to use in some areas with smaller slopes.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a waterfall reoxygenation multi-stage AAO rural domestic sewage treatment device, comprising a fixed frame, two groups of sewage treatment sections are installed inside the fixed frame, the two groups of sewage treatment sections are distributed up and down, a waterfall device is installed between the two groups of sewage treatment sections, the two groups of sewage treatment sections include anaerobic and anoxic sections and aerobic sections, the anaerobic and anoxic sections and the aerobic sections are connected by pipes, one side of one group of aerobic sections is provided with a water outlet, one end of the waterfall device is fixedly connected to one side of the aerobic section and is connected to the water outlet, the other end of the waterfall device is located above the other group of anaerobic and anoxic sections, a water pump 2 is installed on one side of the aerobic section below the fixed frame, a drain pipe is provided above the water pump 2, and the other end of the drain pipe is connected to the interior of the anaerobic and anoxic section.

[0006] By adopting the above technical solution and setting up a sewage treatment section, when in use, the sewage that has undergone preliminary impurity removal will enter the interior of the upper sewage treatment section, and then be treated by the anaerobic anoxic section and the aerobic section, and then reach the interior of the two sets of sewage treatment sections below through the waterfall device. Then, the sewage that needs to be treated again will be driven by the second water pump from the drain pipe to the interior of the upper anaerobic anoxic section. This arrangement can gradually reduce the concentration of pollutants in the sewage through multiple anaerobic anoxic aerobic cycles, thereby improving the treatment efficiency. It also has a multi-stage treatment design, which effectively saves space and is suitable for situations where land slopes are limited in rural areas.

[0007] As an optimal technical solution of the present application, the drop device includes a water outlet pipe and a drop section, one end of the water outlet pipe is interconnected with the water outlet, and the other end of the water outlet pipe is fixedly connected to the drop section, and the drop section is a hollow structure.

[0008] By adopting the above technical solution and setting up a drop device, when in use, the sewage discharged from the interior of the aerobic section above will enter the interior of the outlet pipe, and then combine with the oxygen in the air inside the drop section to produce a strong aeration effect, so that the oxygen in the air dissolves into the water body, thereby increasing the dissolved oxygen concentration in the sewage, and also promoting the sedimentation of particulate matter in the sewage, thereby preliminarily purifying the water quality.

[0009] As a preferred technical solution of the present application, a first sedimentation tank and a second sedimentation tank are installed on one side of the fixed frame, one side of the first sedimentation tank is connected to the aerobic section pipeline, a water pipe is installed between the first sedimentation tank and the second sedimentation tank, and the bottoms of the first sedimentation tank and the second sedimentation tank are both inverted trapezoidal structures.

[0010] By adopting the above technical solution and setting up the first sedimentation tank and the second sedimentation tank, the treated sewage can be sedimented again during use, further removing internal impurities and sediments, and it can also facilitate the staff to carry out the next step of sewage treatment. The trapezoidal design of the bottom can make the sediment more concentrated.

[0011] As a preferred technical solution of the present application, a water pump 1 is installed on one side of the first sedimentation tank, a water pumping pipe is installed at the output end of the water pump 1, and one end of the water pumping pipe is fixedly connected to the anaerobic and anoxic section at the bottom.

[0012] By adopting the above technical solution and setting up a water pump, when in use, the sediment and sewage deposited at the bottom of the first sedimentation tank can be further transported to the sewage treatment process in the front through the water pump for further treatment, thereby improving the practicality of the device.

[0013] As a preferred technical solution of the present application, a three-way valve is provided in the middle of the water pumping pipe, and one end of the three-way valve is fixedly connected to one side of the drainage pipe.

[0014] By adopting the above technical solution and setting a three-way valve, when in use, the staff can change the next process to which the sediment is to go according to the internal impurities of the settled sewage, thereby improving the practicality of the device.

[0015] As a preferred technical solution of the present application, multiple groups of water blocking plates and baffles are installed inside the drop section, and water permeable openings are opened inside the multiple groups of water blocking plates and baffles.

[0016] By adopting the above technical solution and setting up water-blocking plates and baffles, when in use, multiple groups of water-blocking plates and baffles can be used to generate more rapids when the water flows through the interior of the drop section, which can enhance the solubility of oxygen and make the drop effect better.

[0017] As a preferred technical solution of the present application, a blade rod is installed inside one end of the drop section close to the water outlet pipe, and both ends of the blade rod are fixedly connected to both sides of the drop section.

[0018] By adopting the above technical solution and providing the blade rod, when in use, the water flow can produce a segmentation effect after passing through the blade rod, thereby enhancing the solubility of oxygen.

[0019] As a preferred technical solution of the present application, a water outlet plate is installed at one end of the drainage pipe located inside the anaerobic and anoxic section.

[0020] By adopting the above technical solution and setting up a water outlet plate, when in use, the water outlet plate can lift the sewage inside the drain pipe and make it more dispersed when entering the anaerobic and anoxic section, and has a higher solubility with other sewage inside the anaerobic and anoxic section, thereby improving the practicality of the device.

[0021] Beneficial effects of this application:

[0022] 1. By setting up a sewage treatment section, when in use, the sewage that has undergone preliminary impurity removal will enter the interior of the upper sewage treatment section, and then be treated by the anaerobic anoxic section and the aerobic section, and then reach the interior of the two sets of sewage treatment sections below through the drop device. Then, the sewage that needs to be treated again will be driven by the second water pump from the drain pipe to the interior of the upper anaerobic anoxic section. This setting can gradually reduce the concentration of pollutants in the sewage through multiple anaerobic, anoxic and aerobic cycles, thereby improving the treatment efficiency. It also has a multi-stage treatment design, which effectively saves space and is suitable for rural areas with limited land slope.

[0023] 2. By setting up a drop device, when in use, the sewage discharged from the inside of the aerobic section above will enter the inside of the outlet pipe, and then combine with the oxygen in the air inside the drop section to produce a strong aeration effect, so that the oxygen in the air dissolves into the water body, thereby increasing the dissolved oxygen concentration in the sewage, and also promoting the sedimentation of particulate matter in the sewage, thereby preliminarily purifying the water quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 This is a schematic diagram of the structure of the water drop device of this application;

[0026] Figure 3 This is a schematic diagram of the sewage treatment section structure of this application;

[0027] Figure 4 This is a schematic diagram of the structure of the first sedimentation tank of this application.

[0028] In the figure: 1. Fixed frame; 2. Sewage treatment section; 201. Anaerobic and anoxic section; 202. Aerobic section; 203. Water outlet; 3. Drop device; 301. Water outlet pipe; 302. Drop section; 303. Water blocking plate baffle; 304. Water outlet; 305. Blade rod; 4. First sedimentation tank; 401. Water supply pipe; 5. Second sedimentation tank; 6. Suction pump 1; 601. Suction pipe; 602. Three-way valve; 7. Suction pump 2; 701. Drain pipe; 702. Water outlet plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] Reference Figure 1-3A waterfall reoxygenation multi-stage AAO rural domestic sewage treatment device includes a fixed frame 1, two groups of sewage treatment sections 2 are installed inside the fixed frame 1, the two groups of sewage treatment sections 2 are distributed up and down, a waterfall device 3 is installed between the two groups of sewage treatment sections 2, the two groups of sewage treatment sections 2 include an anaerobic and anoxic section 201 and an aerobic section 202, the anaerobic and anoxic sections 201 and the aerobic sections 202 are connected by pipes, one side of one group of water outlets 203 is provided with a water outlet 203, one end of the waterfall device 3 is fixedly connected to one side of the aerobic section 202 and is connected to the water outlet 203, the other end of the waterfall device 3 is located above the other group of anaerobic and anoxic sections 201, a water pump 27 is installed on one side of the aerobic section 202 below the fixed frame 1, a drain pipe 701 is provided above the water pump 27, and the other end of the drain pipe 701 is connected to the interior of the anaerobic and anoxic section 201. A first sedimentation tank 4 and a second sedimentation tank 5 are installed on one side of the fixed frame 1. One side of the first sedimentation tank 4 is connected to the aerobic section 202 pipeline. A water pipe 401 is installed between the first sedimentation tank 4 and the second sedimentation tank 5. The bottoms of the first sedimentation tank 4 and the second sedimentation tank 5 are both inverted trapezoidal structures.

[0031] By setting up the sewage treatment section 2, when in use, the sewage that has undergone preliminary impurity removal will enter the interior of the upper sewage treatment section 2, and then be treated by the anaerobic anoxic section 201 and the aerobic section 202, and then reach the interior of the two groups of sewage treatment sections 2 below through the water drop device 3. Then, the sewage that needs to be treated again will reach the interior of the upper anaerobic anoxic section 201 from the drain pipe 701 under the drive of the water pump 2 7. This setting can reduce the concentration of pollutants in the sewage step by step through multiple anaerobic anoxic aerobic cycles, improve the treatment efficiency, and also has a multi-stage treatment design, effectively saving space, suitable for the situation where the land slope is limited in rural areas. By setting up the first sedimentation tank 4 and the second sedimentation tank 5, when in use, the treated sewage can be sedimented again, further removing internal impurities and sediments, and it can also facilitate the staff to carry out the next step of sewage treatment, and the trapezoidal design at the bottom can make the sediment more concentrated.

[0032] Reference Figure 1The drop device 3 includes a water outlet pipe 301 and a drop section 302, one end of the water outlet pipe 301 is communicated with the water outlet 203, and the other end of the water outlet pipe 301 is fixedly connected to the drop section 302, and the drop section 302 is a hollow structure; a water pump 6 is installed on one side of the first sedimentation tank 4, and a water pump 6 is installed on the output end of the water pump 6, and one end of the water pump 601 is fixedly connected to the anaerobic and anoxic section 201 at the bottom; multiple groups of water blocking plate baffles 303 are installed inside the drop section 302, and the interiors of the multiple groups of water blocking plate baffles 303 are all provided with water permeable openings 304; by setting the drop device 3, when in use, the sewage discharged from the interior of the aerobic section 202 above will enter the interior of the water outlet pipe 301, and then The interior of the drop section 302 combines with the oxygen in the air to produce a strong aeration effect, so that the oxygen in the air dissolves into the water body, thereby increasing the dissolved oxygen concentration in the sewage, and also promoting the sedimentation of particulate matter in the sewage, thereby preliminarily purifying the water quality; by providing a water pump 6, when in use, the sediment and sewage deposited at the bottom of the first sedimentation tank 4 can be further transported to the sewage treatment process in the front through the water pump 6 for further treatment, thereby improving the practicality of the device; by providing a water-blocking plate baffle 303, when in use, multiple groups of water-blocking plates 303 can be used to generate more rapids when the water flows through the interior of the drop section 302, thereby enhancing the solubility of oxygen and making the drop effect better.

[0033] Reference Figure 1 A three-way valve 602 is provided in the middle of the suction pipe 601, one end of which is fixedly connected to one side of the drainage pipe 701. By providing the three-way valve 602, when in use, the staff can change the next process to which the sediment is to be sent according to the internal impurities of the settled sewage, thereby improving the practicality of the device. A blade rod 305 is installed inside the end of the drop section 302 near the outlet pipe 301, and both ends of the blade rod 305 are fixedly connected to the two sides of the drop section 302. By providing the blade rod 305, when in use, the water flow can be divided after passing through the blade rod 305, thereby enhancing the solubility of the water in the anaerobic and anoxic section 201. A water outlet plate 702 is installed at one end of the drainage pipe 701 located inside the anaerobic and anoxic section 201. By providing the water outlet plate 702, when in use, the water in the drainage pipe 701 can be more dispersed when entering the anaerobic and anoxic section 201, thereby improving the solubility of the water in the anaerobic and anoxic section 201, thereby improving the practicality of the device.

[0034] Working principle: by setting up the sewage treatment section 2, when in use, the sewage that has undergone preliminary impurity removal will enter the interior of the upper sewage treatment section 2, and then be treated by the anaerobic anoxic section 201 and the aerobic section 202, and then reach the interior of the two groups of sewage treatment sections 2 below through the drop device 3, and then the sewage that needs to be treated again will be driven by the water pump 27 from the drain pipe 701 to the interior of the upper anaerobic anoxic section 201. This arrangement can use multiple anaerobic anoxic aerobic cycles to gradually reduce the concentration of pollutants in the sewage and improve the treatment efficiency. It also has a multi-stage treatment design, which effectively saves space and is suitable for rural areas with limited land slope. By setting up the drop device 3, when in use, the sewage discharged from the interior of the upper aerobic section 202 will enter the interior of the outlet pipe 301, and then combine with the oxygen in the air in the interior of the drop section 302 to produce a strong aeration effect, so that the oxygen in the air dissolves into the water body, thereby increasing the dissolved oxygen concentration in the sewage, and also promoting the sedimentation of particulate matter in the sewage, and preliminarily purifying the water quality;

[0035] Among them, by setting the first sedimentation tank 4 and the second sedimentation tank 5, when in use, the treated sewage can be sedimented again, further removing the internal impurities and sediments, and it is also convenient for the staff to carry out the next step of sewage treatment, and the trapezoidal design of the bottom can make the sediment more concentrated. By setting the water pump 1 6, when in use, the sediment and sewage deposited at the bottom of the first sedimentation tank 4 can be further transported to the sewage treatment process in the front through the water pump 1 6 for further treatment, thereby improving the practicality of the device;

[0036] At the same time, by providing the three-way valve 602, when in use, the staff can change the next process to which the sediment is to go according to the internal impurities of the settled sewage, thereby improving the practicality of the device;

[0037] In addition, by providing the water-blocking plate baffle 303, when in use, multiple groups of water-blocking plate baffles 303 can be used to generate more rapids when the water flows through the interior of the drop section 302, which can enhance the solubility with oxygen and make the drop effect better; by providing the blade rod 305, when in use, the water flow can produce a segmentation effect after passing through the blade rod 305, thereby enhancing the solubility with oxygen; by providing the water outlet plate 702, when in use, the water outlet plate 702 can lift the sewage inside the drain pipe 701 to be more dispersed when entering the anaerobic and anoxic section 201, and the solubility with other sewage inside the anaerobic and anoxic section 201 is higher, thereby improving the practicality of the device.

[0038] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A waterfall reoxygenation multi-stage AAO rural domestic sewage treatment device, comprising a fixed frame (1), characterized in that: Two groups of sewage treatment sections (2) are installed inside the fixed frame (1). The two groups of sewage treatment sections (2) are distributed up and down. A water drop device (3) is installed between the two groups of sewage treatment sections (2). The two groups of sewage treatment sections (2) include an anaerobic and anoxic section (201) and an aerobic section (202). The anaerobic and anoxic sections (201) and the aerobic section (202) are connected by a pipe. One side of the aerobic section (202) of one group is provided with a water outlet (203). The water drop device One end of the water drop device (3) is fixedly connected to one side of the aerobic section (202) and communicated with the water outlet (203), and the other end of the water drop device (3) is located above another group of the anaerobic and anoxic sections (201). A second water pump (7) is installed on one side of the aerobic section (202) below the fixed frame (1), and a drainage pipe (701) is provided above the second water pump (7), and the other end of the drainage pipe (701) is communicated with the interior of the anaerobic and anoxic section (201).

2. A waterfall reoxygenation multi-stage AAO rural domestic sewage treatment device according to claim 1, characterized in that: The water drop device (3) comprises a water outlet pipe (301) and a water drop section (302); one end of the water outlet pipe (301) is in communication with the water outlet (203); the other end of the water outlet pipe (301) is fixedly connected to the water drop section (302); and the water drop section (302) is a hollow structure.

3. A waterfall reoxygenation multi-stage AAO rural domestic sewage treatment device according to claim 1, characterized in that: A first sedimentation tank (4) and a second sedimentation tank (5) are installed on one side of the fixed frame (1); one side of the first sedimentation tank (4) is connected to the aerobic section (202) pipeline; a water pipe (401) is installed between the first sedimentation tank (4) and the second sedimentation tank (5); and the bottoms of the first sedimentation tank (4) and the second sedimentation tank (5) are both inverted trapezoidal structures.

4. A waterfall reoxygenation multi-stage AAO rural domestic sewage treatment device according to claim 3, characterized in that: A water pump (6) is installed on one side of the first sedimentation tank (4), and a water pump (601) is installed at the output end of the water pump (6), and one end of the water pump (601) is fixedly connected to the anaerobic and anoxic section (201) at the bottom.

5. A waterfall reoxygenation multi-stage AAO rural domestic sewage treatment device according to claim 4, characterized in that: A three-way valve (602) is provided in the middle of the water pumping pipe (601), and one end of the three-way valve (602) is fixedly connected to one side of the drainage pipe (701).

6. A waterfall reoxygenation multi-stage AAO rural domestic sewage treatment device according to claim 2, characterized in that: Multiple groups of water blocking plates (303) are installed inside the water drop section (302), and water permeable openings (304) are provided inside the multiple groups of water blocking plates (303).

7. A waterfall reoxygenation multi-stage AAO rural domestic sewage treatment device according to claim 2, characterized in that: A blade rod (305) is installed inside one end of the drop section (302) close to the water outlet pipe (301), and both ends of the blade rod (305) are fixedly connected to both sides of the drop section (302).

8. The waterfall reoxygenation multi-stage AAO rural domestic sewage treatment device according to claim 1 is characterized in that: A water outlet plate (702) is installed at one end of the drainage pipe (701) located inside the anaerobic and anoxic section (201).

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