Ecological water purification system for resource utilization of village domestic sewage

Abstract

The utility model provides an ecological water purification system for resource utilization of village domestic sewage and belongs to the technical field of sewage treatment. Comprising a black water digestion tank, an adjusting slag separation tank and a biological-ecological combined water purification device which are connected in sequence. The ecological purification system disclosed by the utility model is low in operation technical requirement, simple and convenient to construct and suitable for village domestic sewage treatment.

Description

Technical Field

[0001] The utility model provides an ecological water purification system for resource utilization of village domestic sewage, belonging to the technical field of sewage treatment. Background Art

[0002] Resource utilization of village domestic sewage is a sustainable development method. By treating and utilizing domestic sewage, the impact of sewage on the environment can be greatly reduced, and certain economic and energy benefits can also be obtained. At present, the main domestic sewage treatment processes in villages include traditional biochemical methods, artificial wetlands, rapid infiltration processes, and improved oxidation ponds.

[0003] Based on the above, the inventors found that:

[0004] However, the traditional biochemical method has high power consumption and is difficult to operate normally in villages and towns that lack management capabilities; artificial wetlands, rapid infiltration and improved oxidation pond processes have low operating costs and low operating technical requirements, but they have disadvantages such as large land occupation, poor load impact resistance and low treatment efficiency; artificial wetlands and rapid infiltration processes also have the problem of easy clogging of fillers. In addition, these processes cannot convert sewage into effective resources to feed back to local villagers.

[0005] Therefore, in view of this, the existing structure was studied and improved, and an ecological water purification system for resource utilization of village domestic sewage was proposed to solve the above-mentioned problems. Utility Model Content

[0006] The technical problem to be solved by the utility model is that the traditional operation technology has high requirements and is difficult to construct, and is not suitable for village domestic sewage treatment.

[0007] In order to solve the above problems, the utility model proposes a technical solution: an ecological water purification system for resource utilization of village domestic sewage, including a black water digestion tank, a regulating slag separation tank, and a biological-ecological combined water purification device, wherein the black water digestion tank, the regulating slag separation tank, and the biological-ecological combined water purification device are connected in sequence.

[0008] Furthermore, the black water digester and regulating slag separator are located below the ground level, and one side of the black water digester and the regulating slag separator is connected to a black water inlet pipe and a supernatant water pipe respectively, and a check valve is provided on the black water inlet pipe and the gray water inlet pipe respectively.

[0009] Furthermore, the black water digestion tank and the regulating slag separator tank are interconnected through a supernatant water pipe, and the supernatant water pipe is provided with a second check valve.

[0010] Furthermore, the black water digester is provided with a black water inlet coarse and fine grid and a fertilizer liquid lifting pump, the fertilizer liquid lifting pump is fixedly connected to a fertilizer liquid extraction pipe and the other end of the fertilizer liquid extraction pipe extends to the ground, and the regulating slag tank is provided with an gray water inlet coarse and fine grid, an gray water lifting pump and a float liquid level switch.

[0011] Furthermore, the grey water lifting pump is fixedly connected to a connecting pipe and a basket filter is provided on the connecting pipe, and the other end of the connecting pipe is placed on a biological-ecological combined water purification device.

[0012] Furthermore, a water outlet pipe is provided at the bottom of the biological-ecological combined water purification device.

[0013] Due to the adoption of the above-mentioned technical scheme, the beneficial effects of the utility model of an ecological water purification system for resource utilization of village domestic sewage are as follows: the black water digestion tank, the regulating slag tank, and the biological-ecological combined water purification device can be modularly designed, and have the characteristics of few power consumption points, low energy consumption, strong load impact resistance, land saving, usable sewage, stable effluent quality, simple construction, short construction period, convenient maintenance and management, low operating cost, good environmental landscape effect, and no odor. It is suitable for the field of low-concentration organic sewage purification and treatment, and can be widely promoted in the treatment of village domestic sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a structural schematic diagram of an ecological water purification system for resource utilization of village domestic sewage in the utility model.

[0016] In the figure:

[0017] 1. Black water digester; 2. Adjusting slag tank; 3. Biological-ecological combined water purification device; 4. Black water inlet pipe; 5. Black water inlet coarse and fine screen; 6. Fertilizer liquid lifting pump; 7. Fertilizer liquid taking pipe; 8. Supernatant liquid water pipe; 9. Gray water inlet pipe; 10. Gray water inlet coarse and fine screen; 11. Gray water lifting pump; 12. Float level switch; 13. Basket filter; 14. Outlet pipe; 15. Check valve one; 16. Check valve two. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The present application fully explains the problems of the prior art in the technical background, and there are no superordinate or general problems. The problems to be solved by the present application are described in detail in the following utility model content and specific implementation methods, the technical problems to be solved by the technical scheme are clarified, and it is determined that the technical scheme of the present application has beneficial effects relative to the objective prior art.

[0020] See also Figure 1 As shown: The utility model provides an ecological water purification system for resource utilization of domestic sewage in villages and towns: it includes a black water digestion tank 1, a regulating slag separation tank 2, and a biological-ecological combined water purification device 3, the black water digestion tank 1, the regulating slag separation tank 2, and the biological-ecological combined water purification device 3 are connected in sequence, and a water outlet pipe 14 is provided at the bottom of the biological-ecological combined water purification device 3.

[0021] The black water digester 1 and regulating slag separator 2 are located below the ground level, and one side of the black water digester 1 and regulating slag separator 2 is connected to a black water inlet pipe 4 and a supernatant water pipe 8 respectively, and a check valve 15 is provided on the black water inlet pipe 4 and the gray water inlet pipe 9 respectively.

[0022] The black water digestion tank 1 and the regulating slag separator tank 2 are interconnected through a supernatant liquid water pipe 8 , and the supernatant liquid water pipe 8 is provided with a second check valve 16 .

[0023] The black water digester 1 is provided with a black water inlet coarse and fine grid 5 and a fertilizer liquid lifting pump 6, to which a fertilizer liquid extraction pipe 7 is fixedly connected and the other end of the fertilizer liquid extraction pipe 7 extends to the ground; the regulating slag separation tank 2 is provided with a gray water inlet coarse and fine grid 10, a gray water lifting pump 11 and a float liquid level switch 12.

[0024] The grey water lifting pump 11 is fixedly connected to a connecting pipe 17 and a basket filter 13 is provided on the connecting pipe 17 . The other end of the connecting pipe 17 is placed on the biological-ecological combined water purification device 3 .

[0025] The principle of the ecological water purification system for resource utilization of village domestic sewage in the utility model is:

[0026] Black water enters the black water digester 1 through the black water inlet pipe 4 and the black water inlet coarse and fine grid 5. After the black water inlet coarse and fine grid 5 removes larger solids, it enters the black water digester 1 for digestion and fermentation. The fertilizer liquid produced after digestion and fermentation can be taken out through the fertilizer liquid lifting pump 6 in the fertilizer liquid taking pipe 7 for irrigation. Gray water enters the regulating slag separation tank 2 through the gray water inlet pipe 9 and the gray water inlet coarse and fine grid 10. After the gray water inlet coarse and fine grid 10 removes larger solids, it enters the regulating slag separation tank 2 for precipitation. The supernatant of the black water digester 1 enters the regulating slag separation tank 2 through the supernatant water pipe 8 and then is precipitated by the regulating separation. The grey water in the slag pool 2 is lifted by the lifting pump 11 and filtered through the basket filter 13 to enter the biological-ecological combined water purification device 3, and then further purified by absorption and degradation by various wetlands and terrestrial plants in the biological-ecological combined water purification device 3 and filtration and adsorption by multi-stage fillers. The outlet pipe 14 flows into the farmland irrigation ditch by gravity. The check valve 1 15 and the check valve 2 16 on the black water inlet pipe 4, the grey water inlet pipe 9 and the supernatant water pipe 8 allow the liquid to flow in one direction only. The float liquid level switch is an existing technology mainly used to determine the liquid level and drain water in time.

[0027] The utility model ecological purification system has low technical requirements for operation and is easy to construct, and is suitable for domestic sewage treatment in villages and towns.

[0028] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. An ecological water purification system for resource utilization of village domestic sewage, characterized by: The invention comprises a black water digestion tank (1), an adjusting slag separation tank (2), and a biological-ecological combined water purification device (3), wherein the black water digestion tank (1), the adjusting slag separation tank (2), and the biological-ecological combined water purification device (3) are connected in sequence, wherein the black water digestion tank (1) is provided with a black water inlet coarse and fine grid (5) and a fertilizer liquid lifting pump (6), wherein a fertilizer liquid extraction pipe (7) is fixedly connected to the fertilizer liquid lifting pump (6), and the other end of the fertilizer liquid extraction pipe (7) extends to the ground, and wherein the adjusting slag separation tank (2) is provided with a gray water inlet coarse and fine grid (10), a gray water lifting pump (11), and a float liquid level switch (12).

2. The ecological water purification system for resource utilization of village domestic sewage according to claim 1 is characterized by: The black water digestion tank (1) and the regulating slag separator tank (2) are located below ground level, and one side of the black water digestion tank (1) and the regulating slag separator tank (2) are respectively connected to a black water inlet pipe (4) and a supernatant liquid water pipe (8), and a check valve (15) is respectively provided on the black water inlet pipe (4) and the gray water inlet pipe (9).

3. The ecological water purification system for resource utilization of village domestic sewage according to claim 1 is characterized by: The black water digestion tank (1) and the regulating slag separator tank (2) are interconnected via a supernatant liquid water pipe (8), and the supernatant liquid water pipe (8) is provided with a second check valve (16).

4. The ecological water purification system for resource utilization of village domestic sewage according to claim 1 is characterized by: The grey water lifting pump (11) is fixedly connected to a connecting pipe (17) and a basket filter (13) is provided on the connecting pipe (17); the other end of the connecting pipe (17) is placed on a biological-ecological combined water purification device (3).

5. The ecological water purification system for resource utilization of village domestic sewage according to claim 1 is characterized by: A water outlet pipe (14) is provided at the bottom of the biological-ecological combined water purification device (3).

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