Unpowered sewage treatment equipment

Abstract

The utility model discloses unpowered sewage treatment equipment, which comprises a facultative tank body and an anaerobic tank body, a facultative culture area and a settling area are arranged in the facultative tank body, the lower end of the facultative culture area is communicated with the lower end of the settling area through a sewage pipe, a plurality of microporous aerators are arranged in the facultative culture area, and the anaerobic tank body is communicated with the settling area through a sewage pipe. The upper end of the facultative culture area is communicated with the upper end of the anaerobic tank body through a water distribution pipe; according to the unpowered sewage treatment equipment, domestic sewage sequentially passes through the settling zone, the facultative culture zone and the inner cavity of the anaerobic tank body through self weight, extra power is not needed to drive water to flow, and the sewage is settled by the settling zone; and the anaerobic metabolism of facultative microorganisms in the facultative culture area decomposes carbohydrates into some low-molecular organic acids, hydrogen and carbon dioxide, and finally the anaerobic microorganisms in the anaerobic tank body degrade part of harmful substances in the sewage again, so that unpowered treatment of the domestic sewage can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural sewage, in particular to a sewage unpowered treatment device. Background Art

[0002] In daily life, washing clothes, cooking, washing, going to the toilet, etc. will generate sewage. These sewage contain a lot of organic matter, ammonia nitrogen, total phosphorus, suspended solids, etc. If they are discharged directly into nature, they will inevitably cause water pollution. In severe cases, it will lead to eutrophication of water bodies and cause large-scale deaths of fish. It will also pollute the soil environment and is not conducive to the growth of crops or plants. In the long run, it will seriously endanger the quality of life and safety of human beings. Therefore, the treatment of domestic sewage is also a problem that humans urgently need to solve.

[0003] However, due to the lack of unified planning and management of sewage treatment in rural my country, backward treatment technology, insufficient capital investment and low public participation, most rural areas in my country do not treat domestic sewage, and also lack corresponding low-cost domestic sewage treatment equipment. This paper aims to propose a non-powered sewage treatment equipment. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that harmful gases produced by aeration tanks will have a certain impact on the surrounding ecological environment, and proposes a sewage unpowered treatment device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sewage unpowered treatment device, comprising:

[0007] A facultative tank body, wherein the facultative tank body is provided with a facultative culture area and a sedimentation area, the lower end of the facultative culture area is connected with the lower end of the sedimentation area through a sewage pipe, and a plurality of microporous aerators are arranged in the facultative culture area;

[0008] The anaerobic tank body is installed on one side of the facultative tank body, and the upper end of the facultative culture area is connected with the upper end of the anaerobic tank body through a water distribution pipe.

[0009] Preferably, an upper cover 1 is fixedly provided on the upper end of the anaerobic tank body, an exhaust pipe 1 is provided on the upper cover 1, an upper cover 2 is installed above the facultative tank body, the upper end of the upper cover 2 is connected to two exhaust pipes 2, and the lower ends of the two exhaust pipes 2 are respectively connected to the inner cavities of the sedimentation area and the facultative culture area.

[0010] Preferably, a Roots blower is installed at the upper end of the facultative tank body, and the air outlet of the Roots blower and the air inlet of the microporous aerator are connected to each other.

[0011] Preferably, the upper end of the sedimentation zone is connected to a water inlet pipe, the upper end of the anaerobic tank body is connected to a water outlet pipe, a plurality of microporous aerators are fixedly arranged on the inner bottom surface of the facultative culture zone, and the sewage pipe is fixedly installed on the lower end of the partition plate body.

[0012] Preferably, a partition plate body is provided between the facultative culture area and the precipitation area, and the partition plate body and the facultative tank body are fixedly connected.

[0013] Preferably, hanging elastic fillers are fixedly installed at the middle ends of the sedimentation area and the facultative culture area.

[0014] Compared with the prior art, the utility model provides a sewage unpowered treatment device, which has the following beneficial effects:

[0015] 1. The unpowered sewage treatment equipment allows domestic sewage to flow through the sedimentation area, facultative culture area and the inner cavity of the anaerobic tank in turn by its own weight. No additional power is needed to drive the water flow, and the sewage is precipitated in the sedimentation area. The anaerobic metabolism of facultative microorganisms in the facultative culture area decomposes carbohydrates into some low-molecular organic acids, hydrogen and carbon dioxide. Finally, the anaerobic microorganisms in the anaerobic tank degrade some harmful substances in the sewage again, which can realize the unpowered treatment of domestic sewage. In addition, the facultative culture area, like the anaerobic tank, does not require additional oxygen input or exogenous energy, which reduces energy and maintenance costs. It can also release energy and produce gases with energy value, which can be actively utilized to generate economic value.

[0016] 2. The unpowered sewage treatment equipment initially cultivates aerobic microorganisms in the facultative culture area through Roots blowers and microporous aerators, and then gradually reduces the amount of aeration input into the water body in the facultative culture area, so that the aerobic microorganisms cultivated on several hanging elastic fillers in the early stage are gradually in anoxic state, thereby realizing the cultivation of facultative microorganisms on the hanging elastic fillers.

[0017] 3. The microporous aerator in the sewage unpowered treatment equipment is installed on the lower surface of the microporous aerator through a rubber diaphragm. Occasionally, gas is injected into the sewage downward to form small bubbles that diffuse and escape from the outer ring of the circular holes and the annular umbrella cover to cultivate aerobic microorganisms. The annular umbrella cover at the upper end of the rubber diaphragm then blocks the sediment from sinking and blocking the micropores. Compared with the disc aerator in the prior art, it will not be blocked and has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a sewage unpowered treatment device proposed by the utility model;

[0019] Figure 2This is a cross-sectional view of a sewage unpowered treatment device proposed by the utility model;

[0020] Figure 3 This is an exploded view of a microporous aerator in a sewage unpowered treatment device proposed by the utility model.

[0021] In the figure: 1. facultative tank body; 2. anaerobic tank body; 3. water inlet pipe; 4. water outlet pipe; 5. upper cover 1; 6. upper cover 2; 7. exhaust pipe 1; 8. exhaust pipe 2; 9. Roots blower; 10. partition plate body; 11. sewage pipe; 12. hanging elastic filler; 13. microporous aerator; 1301. annular umbrella cover; 1302. round hole; 1303. air guide pipe; 1304. air pipe head; 1305. ring frame; 1306. rubber diaphragm; 14. water distribution pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] Reference Figure 1-3 A sewage unpowered treatment device comprises a facultative tank body 1 and an anaerobic tank body 2, wherein the facultative tank body 1 is used to domesticate facultative microorganisms, and the anaerobic tank body 2 is used to domesticate anaerobic microorganisms, and the facultative microorganisms and anaerobic microorganisms are used to decompose different harmful substances respectively, the facultative tank body 1 is fixedly arranged on the right side of the anaerobic tank body 2, and the facultative tank body 1 and the anaerobic tank body 2 are arranged below the ground, and are used to realize the downward self-flow of domestic sewage above the local area, and the inner cavity in the facultative tank body 1 is divided into a facultative culture area and a sedimentation area distributed on the left and right by a partition body 10, and the partition body 10 is fixedly connected to the facultative tank body 1, and the sedimentation area mainly performs preliminary sedimentation treatment on the domestic sewage, and the facultative culture area is arranged on the left side of the sedimentation area;

[0025] A plurality of microporous aerators 13 are fixedly installed in a matrix on the lower bottom surface of the facultative culture area, and the lower air inlets of the plurality of microporous aerators 13 are fixedly connected through a plurality of conduits. A Roots blower 9 is installed on the upper end of the facultative pool body 1, and the Roots blower 9 is connected to an external power supply through a wire, and the air outlet of the Roots blower 9 is connected to the air inlets of the plurality of microporous aerators 13 through a conduit. The facultative culture area is filled with air into the domestic sewage through the Roots blower 9 and the plurality of microporous aerators 13, and the air is dispersed and escaped as bubbles, thereby accelerating the dissolution of oxygen in the air into the water.

[0026] The microporous aerator 13 in the present application comprises an annular umbrella cover 1301, three air guide tubes 1303, an air pipe head 1304, a ring frame 1305 and a rubber diaphragm 1306. A circular hole 1302 is provided at the central axis of the annular umbrella cover 1301. The annular umbrella cover 1301 is installed upward. The top ends of the three air guide tubes 1303 are installed obliquely on the inner circle of the annular umbrella cover 1301. The lower ends of the three air guide tubes 1303 are fixedly connected to the upper end of the air pipe head 1304. The annular umbrella cover 1301 is provided with a circular hole 1302. The annular umbrella cover 1301 is installed upward. The top ends of the three air guide tubes 1303 are fixedly connected to the upper end of the air pipe head 1304. The frame 1305 is coaxially sealed and fixedly installed at the lower end of the annular umbrella cover 1301, and the rubber diaphragm 1306 is fixedly installed on the lower surface of the ring frame 1305. The ring frame 1305 is mainly used to install and support the rubber diaphragm 1306 downward, and has holes for ventilation. The rubber diaphragm 1306 and the ring frame 1305 are installed downward, and the rubber diaphragm 1306 is provided with a plurality of densely arranged micropores. The air pipe head 1304 is connected to the air outlet of the Roots blower 9 through a conduit.

[0027] When gas rushes into the space between the annular umbrella cover 1301, the ring frame 1305 and the rubber diaphragm 1306 to form a positive pressure, the compressed gas will open several micropores on the rubber diaphragm 1306 and fill the sewage downward with gas, forming small bubbles that diffuse and escape from the circular hole 1302 and the outer circle of the annular umbrella cover 1301. When the rubber diaphragm 1306 is not inflated, it is closed by elastic deformation of the rubber diaphragm 1306 and fits onto the lower surface of the ring frame 1305, thereby preventing the micropores from being blocked by sediments. The annular umbrella cover 1301 can prevent the sediments from sinking and blocking the micropores. Compared with the disc aerator in the prior art, it will not be blocked and its service life is increased.

[0028] In this embodiment, the upper right end of the sedimentation zone is fixedly connected with an inlet pipe 3, and the upper left end of the anaerobic tank body 2 is fixedly connected with an outlet pipe 4. The horizontal position of the inlet pipe 3 is not lower than the outlet pipe 4, which is used to realize the flow of sewage without additional power through the water level. The middle end of the sedimentation zone and the facultative culture zone is fixedly installed with a hanging elastic filler 12. The inner circle of the hanging elastic filler 12 is a snowflake-shaped plastic branch, which is mainly used as an attachment culture site for facultative microorganisms.

[0029] The lower end of the partition plate body 10 is fixedly connected with a sewage pipe 11, which is much higher than the lower bottom surface of the sedimentation area. The lower end of the sedimentation area is mainly used to precipitate the sedimentation sand in the domestic sewage. The sewage pipe 11 is arranged below the hanging elastic filler 12 to connect the sedimentation area with the facultative culture area. The upper end of the anaerobic tank body 2 is connected to the upper end of the facultative culture area through the water distribution pipe 14.

[0030] In addition, the heights of the water distribution pipe 14, the water inlet pipe 3 and the water outlet pipe 4 are comparable, that is, when the water in the facultative tank body 1 and the anaerobic tank body 2 reaches the heights of the water pipe 3 and the water outlet pipe 4, the domestic sewage entering the water inlet pipe 3 will flow through the sedimentation area, the sewage pipe 11, the facultative culture area, the water distribution pipe 14 and the anaerobic tank body 2 in sequence, and finally be discharged from the water outlet pipe 4. The sewage flows through the sedimentation in the sedimentation area and the filtration of the hanging elastic filler 12, so that the sewage at the upper end of the facultative culture area is relatively clean.

[0031] In this embodiment, an upper cover 26 is fixedly installed above the facultative tank body 1, and the upper end of the upper cover 26 is fixedly connected to two exhaust pipes 28. The upper cover 26 is mainly used to cover the upper end of the inner cavity of the facultative tank body 1, and then the gas in the inner cavity of the facultative tank body 1 is discharged through the two exhaust pipes 28. The lower ends of the two exhaust pipes 28 are respectively connected to the upper ends of the sedimentation area and the facultative culture area. An upper cover 5 is fixedly provided on the upper end of the anaerobic tank body 2. The upper cover 5 is used to cover the upper end of the anaerobic tank body 2 to reduce the contact between oxygen and the water therein, and to create a lack of oxygen. The oxygen environment is used to cultivate anaerobic microorganisms. The metabolic characteristics of anaerobic microorganisms are that they use the reduced organic matter in the sewage as a hydrogen acceptor without providing exogenous energy, and at the same time produce methane gas with energy value. The biogas produced while degrading the organic matter contains gaseous substances such as CH4, CO2, N2, H2, O2, H2S, etc., which can be actively utilized to generate economic value. The upper end of the upper cover 5 is fixedly connected to an exhaust pipe 7, and the exhaust pipe 7 is also used to discharge the gas produced by the reaction in a centralized manner.

[0032] It should be noted that the process of culturing facultative microorganisms in the facultative culture area of ​​the facultative tank body 1 is as follows:

[0033] First, air is continuously injected into the domestic sewage through the Roots blower 9 and a plurality of microporous aerators 13, and bubbles are dispersed and escaped, so as to accelerate the dissolution of oxygen in the air into the water, that is, to increase the oxygen content of the water in the facultative culture area, which is used to cultivate aerobic microorganisms in the facultative culture area. After a sufficient number of facultative microorganisms are cultivated on the several hanging elastic fillers 12 in the facultative culture area, the duration of aeration of the water in the facultative culture area by the Roots blower 9 and a plurality of microporous aerators 13 is gradually intermittently reduced, that is, the amount of aeration input into the water in the facultative culture area by the Roots blower 9 and a plurality of microporous aerators 13 is gradually reduced, so that the oxygen content of the water in the facultative culture area is increased. During this period, aerobic microorganisms cultured on several hanging elastic fillers 12 are gradually in anoxic state, so that the aerobic microorganisms cultured on the hanging elastic fillers 12 are gradually trained to facultative microorganisms. Facultative microorganisms convert organic matter in sewage into stably precipitable substances through anaerobic respiration, while reducing the emission of nitrogen, phosphorus and other components. Facultative microorganisms decompose carbohydrates into some low-molecular organic acids, hydrogen and carbon dioxide through anaerobic metabolism, and release energy in the process. The facultative anaerobic tank can operate in the absence of oxygen, so no additional oxygen is required, reducing energy and maintenance costs.

[0034] In the utility model, the process of treating domestic sewage by the sewage unpowered treatment equipment is as follows:

[0035] First, the domestic sewage is transported downward into the water inlet pipe 3 by its own weight, and flows into the sedimentation area in the facultative tank body 1, until the water level in the sedimentation area is equal to the height of the sewage pipe 11, the sewage in the sedimentation area will enter the facultative culture area through the sewage pipe 11, and with the gradual injection of domestic non-water, when the water level in the sedimentation area and the facultative culture area is equal to the height of the water distribution pipe 14, the water in the facultative culture area will be discharged into the anaerobic tank body 2 through the water distribution pipe 14, and gradually fill up the inner cavity of the anaerobic tank body 2, until the outlet pipe 4 on the anaerobic tank body 2 is equal to the height of the water inlet pipe 3 on the facultative tank body 1, the water at the upper end of the anaerobic tank body 2 will be automatically discharged along the outlet pipe 4, the above process does not require an additional power source to drive the treatment, thereby realizing the unpowered treatment of domestic sewage;

[0036] In the above process, domestic sewage first flows through the sedimentation area for sedimentation treatment, and then the facultative microorganisms in the facultative culture area decompose some harmful substances in the sewage, and the anaerobic microorganisms in the anaerobic tank body 2 decompose some harmful substances in the sewage. Facultative microorganisms decompose carbohydrates into some low-molecular organic acids, hydrogen and carbon dioxide through anaerobic metabolism, and release energy in the process. The facultative anaerobic tank can operate under the condition of no oxygen, so no additional oxygen is required, which reduces energy and maintenance costs. Anaerobic microorganisms use the reduced organic matter in the sewage as a hydrogen acceptor without providing exogenous energy, and produce methane gas with energy value. The biogas produced while degrading organic matter can be actively utilized to generate economic value.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sewage unpowered treatment device, characterized in that: include: A facultative tank body (1), wherein the facultative tank body (1) is provided with a facultative culture area and a sedimentation area, the lower end of the facultative culture area and the lower end of the sedimentation area are connected through a sewage pipe (11), and a plurality of microporous aerators (13) are provided in the facultative culture area; The anaerobic tank body (2) is installed on one side of the facultative tank body (1), and the upper end of the facultative culture area and the upper end of the anaerobic tank body (2) are connected through a water distribution pipe (14); A partition plate body (10) is provided between the facultative culture area and the precipitation area, and the partition plate body (10) and the facultative tank body (1) are fixedly connected.

2. The unpowered sewage treatment equipment according to claim 1, characterized in that: An upper cover (5) is fixedly provided at the upper end of the anaerobic tank body (2), and an exhaust pipe (7) is provided on the upper cover (5). An upper cover (6) is installed above the facultative tank body (1), and the upper end of the upper cover (6) is connected to two exhaust pipes (8), and the lower ends of the two exhaust pipes (8) are respectively connected to the inner cavities of the sedimentation area and the facultative culture area.

3. The unpowered sewage treatment equipment according to claim 1, characterized in that: A Roots blower (9) is installed at the upper end of the facultative tank body (1), and the air outlet of the Roots blower (9) and the air inlet of the microporous aerator (13) are connected to each other.

4. The unpowered sewage treatment equipment according to claim 1, characterized in that: The upper end of the sedimentation zone is connected to a water inlet pipe (3), the upper end of the anaerobic tank body (2) is connected to a water outlet pipe (4), a plurality of microporous aerators (13) are fixedly arranged on the inner bottom surface of the facultative culture zone, and the sewage pipe (11) is fixedly installed on the lower end of the partition plate body (10).

5. The unpowered sewage treatment equipment according to claim 1, characterized in that: A hanging elastic filler (12) is fixedly installed at the middle ends of the sedimentation area and the facultative culture area.

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