A sewage treatment device

Abstract

The present invention relates to the technical field of sewage treatment, and discloses a sewage treatment device, which includes: a treatment tank, an air pump, an aeration pipe, an aeration head, and a photovoltaic panel for powering the air pump; the treatment tank has a first reaction chamber, a second reaction chamber, and a third reaction chamber; the treatment tank has a water inlet connected to the first reaction chamber and a water outlet connected to the third reaction chamber; the water inlet and the water outlet are arranged at intervals at both ends of the treatment tank in the horizontal direction; the second reaction chamber is provided with a reaction area, and a plurality of spherical fillers are arranged in the reaction area. The present application utilizes the characteristics that more sewage is discharged at night and less sewage is discharged in the morning in rural areas, and combines with photovoltaic panels so that the sewage treatment device of the present application can have a 24-hour water storage function at the same time, and can realize anaerobic reaction and nitrification reaction of sewage at different time periods, and use the newly-incoming sewage to push the treated sewage to discharge the treated sewage to realize the circulation of the whole set of sewage treatment equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a sewage treatment device. Background Art

[0002] Sewage treatment has always been a very important topic in environmental protection. Now the sewage in the city is transported to the sewage treatment plant, treated by various sewage treatment equipment and then recycled. However, in the vast rural areas, because the residents live in scattered areas and the number of households is relatively small, there is almost no sewage treatment capacity and no such equipment. The existing rural sewage treatment mainly uses sewage treatment equipment with a box structure. By setting up multiple sewage treatment pools in the box structure and adding filter materials, multi-stage sewage treatment is carried out. However, regular manual cleaning is required, and automated sewage treatment cycle cannot be achieved. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the existing rural sewage treatment mainly relies on sewage treatment equipment with a box structure, which performs multi-stage sewage treatment by setting up multiple sewage treatment pools and adding filter materials in the box structure, but requires regular manual cleaning and cannot achieve an automated sewage treatment cycle.

[0004] In order to solve the above technical problems, the present invention provides a sewage treatment device, which includes: a treatment tank, an air pump, an aeration pipe, an aeration head, and a photovoltaic panel for powering the air pump; the treatment tank has a first reaction chamber, a second reaction chamber and a third reaction chamber; the treatment tank has a water inlet connected to the first reaction chamber and a water outlet connected to the third reaction chamber; the water inlet and the water outlet are arranged at intervals at both ends of the treatment tank in the horizontal direction; the second reaction chamber is provided with a reaction area, and a plurality of spherical fillers are arranged in the reaction area; the aeration pipe is arranged in the second reaction chamber; the photovoltaic panel is electrically connected to the air pump, the air pump is connected to the aeration head, and the aeration head is arranged in the aeration pipe.

[0005] Optionally, it also includes: a first partition plate and a second partition plate; the first partition plate is arranged between the first reaction chamber and the second reaction chamber; the second partition plate is arranged between the second reaction chamber and the third reaction chamber; the first partition plate has a first drainage hole, and the first drainage hole connects the first reaction chamber and the second reaction chamber respectively; the second partition plate has a second drainage hole, and the second drainage hole connects the second reaction chamber and the third reaction chamber respectively.

[0006] Optionally, the water inlet and the water outlet are located at the same horizontal position; the horizontal positions of the first drainage hole and the second drainage hole are lower than the horizontal position of the water outlet.

[0007] Optionally, it also includes: a first glass grid plate and a second glass grid plate; the first glass grid plate is arranged above the reaction area; the second glass grid plate is arranged below the reaction area; the spherical filler is arranged between the first glass grid plate and the second glass grid plate.

[0008] Optionally, the aeration pipe extends in a vertical direction; a drainage outlet is provided on the aeration pipe; and a horizontal position of the drainage outlet is lower than a horizontal position of the water outlet.

[0009] Optionally, the spherical filler includes: a first hemispherical shell, a second hemispherical shell and a plurality of polyurethane sponge fillers; the first hemispherical shell and the second hemispherical shell are hinged, and the first hemispherical shell and the second hemispherical shell can enclose to form a accommodating cavity; the plurality of polyurethane sponge fillers are arranged in the accommodating cavity.

[0010] Optionally, it also includes: a first guide tube; the first end of the first guide tube is connected to the first drainage hole, the second end of the first guide tube extends into the first reaction chamber, and the second end opening of the first guide tube is vertically downward; the horizontal position of the second end of the first guide tube is lower than the horizontal position of the water inlet.

[0011] Optionally, it also includes: a second guide tube; the second guide tube extends in a vertical direction; the middle position of the second guide tube is connected to the second drainage hole through a connecting tube; the horizontal position of the upper end opening of the second guide tube is higher than the horizontal position of the water outlet; the horizontal position of the lower end opening of the second guide tube is lower than the horizontal position of the water outlet.

[0012] Optionally, there are multiple second reaction chambers, and the multiple second reaction chambers are arranged between the first reaction chamber and the third reaction chamber.

[0013] Compared with the prior art, the sewage treatment device according to the embodiment of the present invention has the following beneficial effects:

[0014] The embodiment of the present invention uses a photovoltaic panel to supply power to the aeration head, and the photovoltaic panel is characterized in that it can supply power when there is sunlight in the morning, but cannot supply power when there is no sunlight at night. Therefore, after the sewage enters the treatment tank on the first night, the domestic sewage enters the first reaction chamber, the second reaction chamber and the third reaction chamber from the water inlet, and the first reaction chamber performs sedimentation work on the sewage so that part of the sediment remains in the first reaction chamber, and the sewage undergoes an anaerobic reaction in the treatment tank on the first night. On the second morning, the photovoltaic panel supplies power to the aeration head to make the aeration head work, so that the entire treatment tank enters aerobic decomposition work, and the sewage undergoes nitrification reaction with the spherical filler in the second reaction chamber. Since the amount of sewage in the morning is small, the second reaction chamber can continue to nitrify the sewage on the first night until new sewage enters the treatment tank from the water inlet on the second night. The new sewage pushes the sewage in the second reaction chamber that has undergone a day of nitrification reaction into the third reaction chamber and is discharged from the water outlet. Since the photovoltaic panel does not work at night, the newly entered sewage continues to remain in the treatment tank for anaerobic reaction, thereby circulating the above-mentioned sewage treatment steps. The present application utilizes the fact that more sewage is discharged at night and less sewage is discharged in the morning in rural areas, and combines it with photovoltaic panels so that the sewage treatment device of the present application can have a 24-hour water storage function at the same time, and can also realize anaerobic reaction and nitrification reaction of sewage at different time periods, and use the new sewage to push the treated sewage to discharge the treated sewage, so as to realize the circulation of the whole set of sewage treatment equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the structure of an embodiment of the present invention (showing the direction of water flow);

[0016] Figure 2 is a schematic structural diagram of an embodiment of the present invention;

[0017] Figure 3 Schematic diagram of the structure of the spherical filler in the embodiment of the present invention.

[0018] In the figure, 1. air pump; 2. treatment tank; 21. first reaction chamber; 22. second reaction chamber; 23. third reaction chamber; 24. water inlet; 25. water outlet; 3. aeration pipe; 31. drain outlet; 4. aeration head; 5. photovoltaic panel; 6. spherical filler; 7. first partition; 71. first drain hole; 8. second partition; 81. second drain hole; 9. first glass grid plate; 10. second glass grid plate; 11. first guide pipe; 12. second guide pipe; 13. polyurethane sponge filler. DETAILED DESCRIPTION

[0019] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] First, it should be noted that the top, bottom, upward, downward and other directions mentioned in this article are defined relative to the directions in the respective drawings, and they are relative concepts, and therefore can be changed according to different positions and different practical states. Therefore, these or other directions should not be understood as restrictive terms.

[0021] It should be noted that the term "comprising" does not exclude other elements or steps and "a" or "an" does not exclude a plurality.

[0022] In addition, it should be pointed out that any single technical feature described or implied in the embodiments of this document, or any single technical feature shown or implied in the drawings, can still be combined between these technical features (or their equivalents) to obtain other embodiments of the present application that are not directly mentioned in this document.

[0023] It should also be understood that the terms "first", "second", etc. are used herein to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0024] It should be noted that in different drawings, the same reference numerals denote the same or substantially the same components.

[0025] like Figure 1-Figure 3 As shown, a sewage treatment device of a preferred embodiment of the present invention comprises: a treatment tank 2, an air pump 1, an aeration pipe 3, an aeration head 4, and a photovoltaic panel 5 for powering the air pump 1. The treatment tank 2 has a first reaction chamber 21, a second reaction chamber 22, and a third reaction chamber 23. The treatment tank 2 has a water inlet 24 connected to the first reaction chamber 21 and a water outlet 25 connected to the third reaction chamber 23. The water inlet 24 and the water outlet 25 are arranged at intervals at both ends of the treatment tank 2 in the horizontal direction. The second reaction chamber 22 is provided with a reaction area, and a plurality of spherical fillers 6 are arranged in the reaction area. The aeration pipe 3 is arranged in the second reaction chamber 22, the photovoltaic panel 5 is electrically connected to the air pump 1, the air pump 1 is connected to the aeration head 4, and the aeration head 4 is arranged in the aeration pipe 3.

[0026] Based on the above structure, the sewage treatment device of the present application is applied to rural domestic sewage. The characteristics of rural sewage are that the water consumption is less in the morning and more in the evening. Therefore, more sewage is generated at night and less sewage is generated in the morning. The present application supplies power to the aeration head 4 through the photovoltaic panel 5, and the characteristics of the photovoltaic panel 5 are that it can supply power when there is sunlight in the morning, but cannot supply power when there is no sunlight at night. Therefore, after the sewage enters the treatment tank 2 on the first night, the domestic sewage enters the first reaction chamber 21, the second reaction chamber 22 and the third reaction chamber 23 from the water inlet 24, and the first reaction chamber 21 performs sedimentation on the sewage so that part of the sediment remains in the first reaction chamber 21, and the sewage undergoes an anaerobic reaction in the treatment tank 2 on the first night. On the next morning, the photovoltaic panel 5 supplies power to the aeration head 4 to make the aeration head 4 work, so that the entire treatment tank 2 enters aerobic decomposition work, and the sewage undergoes nitrification reaction with the spherical filler 6 in the second reaction chamber 22. Since the amount of sewage in the morning is small, the second reaction chamber 22 can continue to nitrify the sewage of the first night until new sewage enters the treatment tank 2 from the water inlet 24 on the second night. The new sewage pushes the sewage in the second reaction chamber 22 that has undergone a day of nitrification reaction into the third reaction chamber 23 and is discharged from the water outlet 25. Since the photovoltaic panel 5 does not work at night, the newly entered sewage continues to remain in the treatment tank 2 for anaerobic reaction, thereby circulating the above-mentioned sewage treatment steps. This application utilizes the characteristics that more sewage is discharged at night and less sewage is discharged in the morning in rural areas, and combines the photovoltaic panel 5 to enable the sewage treatment device of this application to have a 24-hour water storage function at the same time, and can realize anaerobic reaction and nitrification reaction of sewage at different time periods, and use the newly entered sewage to push the treated sewage to discharge the treated sewage to realize the circulation of the entire set of sewage treatment equipment.

[0027] Furthermore, the present application further includes: a first partition plate 7 and a second partition plate 8. The first partition plate 7 is arranged between the first reaction chamber 21 and the second reaction chamber 22, the second partition plate 8 is arranged between the second reaction chamber 22 and the third reaction chamber 23, the first partition plate 7 has a first drainage hole 71, the first drainage hole 71 is connected to the first reaction chamber 21 and the second reaction chamber 22 respectively, the second partition plate 8 has a second drainage hole 81, the second drainage hole 81 is connected to the second reaction chamber 22 and the third reaction chamber 23 respectively, the sewage in the first reaction chamber 21 can enter the second reaction chamber 22 through the first drainage hole 71, and the sewage in the second reaction chamber 22 can enter the third reaction chamber 23 through the second drainage hole 81.

[0028] Specifically, the first partition plate 7 and the second partition plate 8 extend in the vertical direction, so that the first reaction chamber 21, the second reaction chamber 22 and the third reaction chamber 23 are spaced apart in the horizontal direction.

[0029] Furthermore, the water inlet 24 and the water outlet 25 are located at the same horizontal position, and the horizontal positions of the first drain hole 71 and the second drain hole 81 are lower than the horizontal position of the water outlet 25, so that the sewage in the treatment tank 2 can circulate back and forth between the first reaction chamber 21, the second reaction chamber 22 and the third reaction chamber 23 through the first drain hole 71 and the second drain hole 81. At the same time, since the horizontal positions of the first drain hole 71 and the second drain hole 81 are relatively low, when no new sewage enters the treatment tank 2 from the water inlet 24, the sewage in the treatment tank 2 cannot be discharged from the treatment tank 2 from the water outlet 25, thereby realizing the circulation of sewage in the treatment tank 2.

[0030] Furthermore, the present application also includes: a first glass grid plate 9 and a second glass grid plate 10. The first glass grid plate 9 is arranged above the reaction area, the second glass grid plate 10 is arranged below the reaction area, the spherical filler 6 is arranged between the first glass grid plate 9 and the second glass grid plate 10, the first glass grid plate 9 and the second glass grid plate 10 play a role in fixing and limiting the spherical filler 6, and the glass grid plate has very superior corrosion resistance to many gaseous and liquid media such as acid, alkali, organic solvents and salts, so installing it in the second reaction chamber 22 will not cause damage to the first glass grid plate 9 and the second glass grid plate 10 due to the erosion of sewage.

[0031] In a possible embodiment, the aeration pipe 3 extends in a vertical direction, and a drain port 31 is provided on the aeration pipe 3. The horizontal position of the drain port 31 is lower than the horizontal position of the water outlet 25, so that after the sewage of the second reaction chamber 22 enters the aeration pipe 3 from the bottom of the aeration pipe 3, the aeration head 4 aerates the sewage entering the aeration pipe 3, and the aerated sewage is re-discharged into the second reaction chamber 22 from the drain port 31, and then new sewage enters the aeration pipe 3 from the bottom of the aeration pipe 3 to realize the circulation of sewage. In the present application, the horizontal position of the drain port 31 is set to be lower than the horizontal position of the water outlet 25, so that the sewage of the present application will not be discharged from the water outlet 25 during the circulation between the aeration pipe 3 and the second reaction chamber 22.

[0032] In a possible embodiment of the spherical filler 6, the spherical filler 6 includes: a first hemispherical shell, a second hemispherical shell and a plurality of polyurethane sponge fillers 13. The first hemispherical shell and the second hemispherical shell are hinged, and the first hemispherical shell and the second hemispherical shell can enclose a receiving cavity, and a plurality of polyurethane sponge fillers 13 are arranged in the receiving cavity. Under the condition of aeration by the aeration head 4 and different pollutant concentrations inside and outside the polyurethane sponge filler 13, sewage outside the polyurethane sponge filler 13 is replaced with sewage inside the filler, and at the same time, the oxygen content from the outside of the filler to the inner center changes, resulting in changes in the types and quantities of the corresponding attached microorganisms, thereby forming an independent nitrification and denitrification treatment system in each filler.

[0033] Furthermore, the present application also includes: a first guide pipe 11. The first end of the first guide pipe 11 is connected to the first drain hole 71, the second end of the first guide pipe 11 extends into the first reaction chamber 21, and the second end opening of the first guide pipe 11 is vertically downwardly arranged, and the horizontal position of the second end of the first guide pipe 11 is lower than the horizontal position of the water inlet 24. After the sewage enters the first reaction chamber 21 from the water inlet 24, due to the anaerobic reaction overnight, the scum of the sewage in the first reaction chamber 21 will float on the water surface in the first reaction during the anaerobic reaction, and the sewage after the scum separation will enter the first guide pipe 11 from the second end opening of the first guide pipe 11, and enter the second reaction chamber 22 from the first guide pipe 11, thereby realizing the scum separation treatment of the sewage.

[0034] In a possible embodiment, the present application further includes: a second guide pipe 12. The second guide pipe 12 extends in the vertical direction, the middle position of the second guide pipe 12 is connected to the second drainage hole 81 through a connecting pipe, the horizontal position of the upper end opening of the second guide pipe 12 is higher than the horizontal position of the water outlet 25, and the horizontal position of the lower end opening of the second guide pipe 12 is lower than the horizontal position of the water outlet 25, so that the sewage from the second reaction chamber 22 can only be discharged into the third reaction chamber 23 from the bottom of the second guide pipe 12 after entering the second drainage hole 81, so that the treated water entering from the bottom of the second guide pipe 12 pushes the water originally treated in the third reaction chamber 23 to be discharged from the drainage hole 31.

[0035] Furthermore, there are multiple second reaction chambers 22, and the multiple second reaction chambers 22 are arranged between the first reaction chamber 21 and the third reaction chamber 23. The number of second reaction chambers 22 is set according to the actual amount of sewage treated and is not limited here.

[0036] In summary, the embodiment of the present invention provides a sewage treatment device, which utilizes the characteristics that more sewage is discharged at night and less sewage is discharged in the morning in rural areas, and is combined with a photovoltaic panel 5 so that the sewage treatment device of the present application can have a 24-hour water storage function at the same time, and can realize anaerobic reaction and nitrification reaction of sewage at different time periods respectively, and use the new sewage to push the treated sewage to discharge the treated sewage to realize the circulation of the whole set of sewage treatment equipment.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A sewage treatment device for treating rural domestic sewage, characterized in that: include: A treatment tank, an air pump, an aeration pipe, an aeration head, and a photovoltaic panel for powering the air pump; the treatment tank has a first reaction chamber, a second reaction chamber, and a third reaction chamber; the treatment tank has a water inlet connected to the first reaction chamber and a water outlet connected to the third reaction chamber; the water inlet and the water outlet are arranged at intervals at both ends of the treatment tank in the horizontal direction; the second reaction chamber is provided with a reaction area, and a plurality of spherical fillers are arranged in the reaction area; the aeration pipe is arranged in the second reaction chamber; the photovoltaic panel is electrically connected to the air pump, the air pump is connected to the aeration head, the aeration head is arranged in the aeration pipe, and the aeration head is operated only by power supply from the photovoltaic panel; a first partition and a second partition; the first partition is arranged between the first reaction chamber and the second reaction chamber; the second partition is arranged between the second reaction chamber and the third reaction chamber; the first partition has a first drainage hole, and the first drainage hole is connected to the first reaction chamber and the second reaction chamber respectively; The second partition plate is provided with a second drainage hole, and the second drainage hole is connected to the second reaction chamber and the third reaction chamber respectively; The water inlet and the water outlet are located at the same horizontal position; the horizontal positions of the first drainage hole and the second drainage hole are lower than the horizontal position of the water outlet; The aeration pipe extends in a vertical direction; The aeration pipe is provided with a drain outlet; the horizontal position of the drain outlet is lower than the horizontal position of the water outlet; The spherical filler comprises: a first hemispherical shell, a second hemispherical shell and a plurality of polyurethane sponge fillers; The first hemispherical shell and the second hemispherical shell are hinged, and the first hemispherical shell and the second hemispherical shell can enclose a receiving cavity; a plurality of polyurethane sponge fillers are arranged in the receiving cavity, and an independent nitrification and denitrification treatment system is formed in each filler; It also includes a first guide tube; the first end of the first guide tube is connected to the first drain hole, the second end of the first guide tube extends into the first reaction chamber, and the second end opening of the first guide tube is vertically downwardly arranged; the horizontal position of the second end of the first guide tube is lower than the horizontal position of the water inlet; A second guide tube; the second guide tube extends in a vertical direction; the middle position of the second guide tube is connected to the second drainage hole through a connecting tube; the horizontal position of the upper end opening of the second guide tube is higher than the horizontal position of the water outlet; the horizontal position of the lower end opening of the second guide tube is lower than the horizontal position of the water outlet.

2. The sewage treatment device according to claim 1, characterized in that: Also includes: a first glass grid plate and a second glass grid plate; wherein the first glass grid plate is arranged above the reaction area; The second glass grid plate is arranged below the reaction area; and the spherical filler is arranged between the first glass grid plate and the second glass grid plate.

3. The sewage treatment device according to claim 1, characterized in that: There are multiple second reaction chambers, and the multiple second reaction chambers are arranged between the first reaction chamber and the third reaction chamber.

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