An ECR sewage treatment equipment

Abstract

The present invention relates to the technical field of sewage treatment, and more specifically, it relates to an ECR sewage treatment device, the technical solution of which is as follows: comprising a hollow device housing, a spacer assembly is arranged in the device housing, the spacer assembly divides the inner cavity of the device housing into an aerobic zone, a filler zone and a sludge zone which are interconnected, the aerobic zone is adjacent to the filler zone and is located on the same horizontal plane, the sludge zone is located below the aerobic zone and the filler zone, and the side wall of the device housing is also provided with a door panel which can swing back and forth in the vertical direction, and the device can be inspected and maintained by opening the door panel. The present invention can effectively remove elements such as nitrogen and phosphorus and organic pollutants in sewage, and has the advantages of easy assembly, convenient maintenance and stable water output.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and more particularly to an ECR sewage treatment device. Background Art

[0002] With the rapid development of social economy, farmers' economic income has been continuously improved, and farmers' lifestyles have also undergone tremendous changes. With the popularization of tap water, sanitary ware, washing machines, showers and other facilities have also entered ordinary people's homes, which has increased farmers' per capita domestic water consumption and sewage discharge. At the same time, due to the large-scale application of chemical fertilizers, the use of traditional farmyard manure has been reduced, resulting in the loss of an important digestion pathway for rural domestic sewage. The disorderly discharge of rural domestic sewage, the use of untreated feces and various sewage, has seriously polluted the soil, surface water and groundwater, and has become an important source of pollution in the rural environment. This situation has caused the rural river water to become black and smelly, fish and shrimp to disappear, and mosquitoes to breed. The spread of diseases caused by bacteria and eggs in sewage has greatly threatened the health of the masses. Rural domestic sewage treatment is imminent.

[0003] At present, there are three main ways to treat rural sewage: centralized treatment in the managed area, centralized treatment of village sewage nearby, and decentralized on-site treatment. The centralized treatment method in the managed area is mainly for villages in the suburbs of towns, where farmers' sewage is collected through pipes and transported to urban sewage treatment plants for unified treatment; the centralized treatment method for village sewage nearby is to collect sewage from households in the village through pipes and centralize it to the village sewage treatment station for unified treatment; decentralized on-site treatment is to use small-scale sewage treatment equipment or natural ecological treatment to treat or utilize the sewage of a single household or several households in front of or behind the houses of the residents.

[0004] Dispersed on-site treatment is widely used because of its better economic efficiency and recycling with the surrounding environment. The sewage treatment equipment mainly uses the "traditional activated sludge method + artificial wetland" treatment process, with built-in fillers, filtration systems and other major components, which are buried in various villages. After the sewage passes through the treatment equipment, it can remove nitrogen, phosphorus and other elements and organic pollutants in it, and then be discharged into the river.

[0005] However, existing sewage treatment equipment has defects: the quality of equipment varies, the quality of effluent is unstable, and it is difficult to repair and maintain if a failure occurs after being buried underground. Because it uses traditional activated sludge technology, the amount of sludge discharged by the equipment every day is large, which invisibly increases the implementation cost. Summary of the invention

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an ECR sewage treatment equipment that can effectively remove elements such as nitrogen and phosphorus and organic pollutants in sewage, and has the advantages of easy assembly, convenient maintenance, small amount of sludge and stable effluent.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: an ECR sewage treatment equipment, comprising a hollow equipment housing, wherein a spacer assembly is arranged in the equipment housing, wherein the spacer assembly divides the inner cavity of the equipment housing into an aerobic zone, a filler zone and a sludge zone which are interconnected, wherein the aerobic zone is adjacent to the filler zone and is located on the same horizontal plane, and the sludge zone is located below the aerobic zone and the filler zone;

[0008] The filler area is detachably provided with simulated plant root fillers, and the inlet end of the simulated plant root fillers is connected to the sewage passage of the equipment, and the outlet end of the simulated plant root system is connected to the sludge area. The aerobic area is provided with a membrane module, the inlet end of the membrane module is connected to the aerobic area, and the outlet end of the membrane module is connected to the drainage passage of the equipment;

[0009] The side wall of the equipment housing is also movably connected with a door panel, and the equipment can be inspected and repaired by opening the door panel.

[0010] In one embodiment, the partition assembly includes a first partition, a triangular weir plate and a second partition plate, wherein the first partition plate is vertically arranged between the aerobic zone and the packing zone, the triangular weir plate is slidably arranged on the first partition plate, and the triangular weir plate is used to adjust the passage width between the aerobic zone and the packing zone; the second partition plate is horizontally arranged at the bottom of the aerobic zone, and the second partition plate is used to provide an installation foundation for the membrane assembly.

[0011] In one embodiment, the spacing assembly further includes an inclined plate, a third partition plate and a baffle, the inclined plate being obliquely disposed on the side wall of the sludge zone, the third partition plate being vertically disposed in the sludge zone, and gaps are formed between the third partition plate and the baffle plate and the inclined plate respectively, the baffle plate is connected to the bottom of the first partition plate, and an extension direction of the baffle plate toward the inclined plate is perpendicular to the surface of the inclined plate, the inclined plate, the third partition plate and the baffle plate form a solid-liquid separation zone, and the solid-liquid separation zone is located at the bottom of the aerobic zone.

[0012] In one embodiment, two aerobic zones are provided, and the two aerobic zones are respectively provided on both sides of the filler zone, and two solid-liquid separation zones are also provided corresponding to the aerobic zones, and the two solid-liquid separation zones are respectively located on both sides of the sludge zone.

[0013] In one of the embodiments, a first opening is provided at the top of the device housing, a hanging basket is detachably mounted at the first opening, a steel plate mesh is laid at the bottom of the hanging basket, and expanded clay for planting green plants is placed on the steel plate mesh.

[0014] In one of the embodiments, the outlet end of the equipment sewage passage is arranged at three quarters of the overall height of the simulated plant root filler.

[0015] In one of the embodiments, the side wall of the first partition is connected with an angle steel, and the simulated plant root filler is connected to the angle steel via threaded steel.

[0016] In one of the embodiments, an aeration tube is horizontally arranged in the equipment shell, and the aeration tube has air holes, the air holes form an upward angle of 45° with the horizontal plane, and the air flow direction of the air holes is arranged toward the triangular weir plate.

[0017] In one of the embodiments, a device platform is further provided on the side wall of the device housing, and a closed connection is formed between the device platform and the door panel to the side wall of the device housing. A driving member for driving the door panel to open or close is also provided on the side wall of the device housing.

[0018] The above-mentioned ECR sewage treatment equipment has the following beneficial effects:

[0019] First, the filler area uses imitation plant root fillers, which have the characteristics of long service life, high microbial concentration and not easy to clog, further ensuring the quality of effluent and creating conditions for nitrogen and phosphorus removal;

[0020] Second, when the equipment fails, the staff can directly open the door panel or remove the hanging basket to repair the equipment, saving equipment maintenance time and facilitating the staff's operation;

[0021] Third, it is helpful to reduce the amount of sludge discharged by the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the side structure of the device in this embodiment;

[0023] Figure 2 Schematic diagram of the internal structure of the device housing in this embodiment;

[0024] Figure 3 Schematic diagram of water inlet and outlet of the device in this embodiment;

[0025] Figure 4 Schematic diagram of mud discharge of the equipment in this embodiment;

[0026] Figure 5 It is a structural schematic diagram of the hanging basket in this embodiment;

[0027] Figure 6 It is the principle diagram of nitrification liquid reflux in this embodiment;

[0028] Figure 7Schematic diagram of the side structure of the triangular weir plate in this embodiment.

[0029] In the figure: 1. equipment shell; 2. equipment platform; 3. door panel; 4. driving part; 5. hanging basket; 51. steel plate mesh; 52. handle; 6. aerobic zone; 7. filler zone; 8. sludge zone; 9. solid-liquid separation zone; 10. membrane assembly; 11. second partition; 12. inclined plate; 13. baffle; 14. third partition; 15. plant root-like filler; 16. first partition; 17. equipment sewage passage; 18. equipment drainage passage; 19. equipment sludge passage; 191. three-way valve; 192. pipeline; 193. sludge pump; 20. fourth partition; 21. triangular weir plate; 22. aeration pipe; 23. air hole; 24. bolt; 25. screw hole. DETAILED DESCRIPTION

[0030] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] See also Figure 1 , Figure 2 and Figure 3 An ECR sewage treatment device includes a hollow device shell 1, in which a spacer component is arranged. The spacer component divides the inner cavity of the device shell 1 into an aerobic zone 6, a filler zone 7 and a sludge zone 8 which are interconnected. The aerobic zone 6 is adjacent to the filler zone 7 and is located on the same horizontal plane, and the sludge zone 8 is located below the aerobic zone 6 and the filler zone 7.

[0036] A plant root-simulating filler 15 is detachably provided in the filler area 7, and the inlet end of the plant root-simulating filler 15 is connected to the equipment sewage passage 17, and the outlet end of the plant root-simulating filler 15 is connected to the sludge area 8. A membrane assembly 10 is provided in the aerobic area 6, and the inlet end of the membrane assembly 10 is connected to the aerobic area 6, and the outlet end of the membrane assembly 10 is connected to the equipment drainage passage 18.

[0037] The side wall of the equipment housing 1 is also movably connected with a door panel 3, and an equipment room for setting up a control system is formed between the door panel 3 and the equipment housing 1. By opening the door panel 3, the equipment can be inspected and maintained.

[0038] Specifically, sewage enters the packing area 7 in the equipment through the sewage passage 17 of the equipment. The packing area 7 is an anaerobic environment, which makes the aerobic environment independent and can effectively reduce the functional load of microorganisms. The packing area 7 is provided with a plant root-like packing 15. Due to the special structure and material of the plant root-like packing 15, the amount and speed of microbial biofilm formation can be increased, and efficient anoxic and anaerobic microbial flora can be quickly formed on the surface of the plant root-like packing 15, creating conditions for denitrification and phosphorus removal. At the same time, the structure and material of the plant root-like packing 15 can reduce the difficulty of removing the aged sludge from the biofilm, ensure the smooth flow of the packing area 7, and ensure that the sewage is not easily blocked when passing through.

[0039] The sewage passes through the packing area 7 and the sludge area 8, and finally reaches the aerobic area 6. The aerobic area 6 contains aerobic microorganisms to nitrify the sewage in the aerobic area 6, remove organic matter and ammonia nitrogen in the water, and use the principle of aerobic phosphorus absorption to remove total phosphorus in the water. In this embodiment, the membrane module 10 uses an MBR membrane, and the sewage enters the membrane module 10 through the inlet end, and is discharged to the external environment through the equipment drainage passage 18 after solid-liquid separation.

[0040] Combination Figure 2 , Figure 6 and Figure 7 , the spacing assembly is described in detail. The spacing assembly includes a first partition plate 16, a triangular weir plate 21 and a second partition plate 11. The first partition plate 16 is vertically arranged between the aerobic zone 6 and the packing zone 7. The triangular weir plate 21 is slidably arranged on the first partition plate 16. The triangular weir plate 21 is used to adjust the passage width between the aerobic zone 6 and the packing zone 7; the second partition plate 11 is horizontally arranged at the bottom of the aerobic zone 6, and the second partition plate 11 is used to provide an installation foundation for the membrane assembly 10.

[0041] The first partition 16 is used to separate the aerobic zone 6 from the packing zone 7. A fourth partition 20 is also provided in the equipment housing 1 to form a passage with the first partition 16. A long strip of screw holes 25 are provided on the triangular weir plate 21. The first partition 16 is fixed to the screw holes 25 by bolts 24. The user can use the moving position of the triangular weir plate 21 in the screw holes 25 to specifically determine the size of the passage according to the actual situation, which is convenient for adjustment and makes it more applicable. The membrane assembly 10 can be fixed to the second partition 11 by a threaded connection structure or other structures. In this embodiment, the second partition 11 is made of channel steel, and the staff can fix the membrane assembly 10 to the second partition 11 by snapping or snapping.

[0042] The side wall of the first partition plate 16 is connected with an angle steel (not shown in the figure), and the simulated plant root filler 15 is connected to the angle steel by threaded steel and bolts.

[0043] The partition assembly also includes an inclined plate 12, a third partition plate 14 and a baffle 13. The inclined plate 12 is obliquely disposed on the side wall of the sludge zone 8. The third partition plate 14 is vertically disposed in the sludge zone 8, and gaps are formed between the third partition plate 14 and the baffle 13 and the inclined plate 12 respectively. The baffle 13 is connected to the bottom of the first partition plate 16, and the extension direction of the baffle 13 toward the inclined plate 12 is perpendicular to the surface of the inclined plate 12. A solid-liquid separation zone 9 is formed between the inclined plate 12, the third partition plate 14 and the baffle 13, and the solid-liquid separation zone 9 is located at the bottom of the aerobic zone 6.

[0044] Please return to Figure 2 and Figure 4The arrangement of the inclined plate 12, the baffle 13 and the third partition 14 is conducive to the sewage entering the sludge zone 8 from the filler zone 7, and then entering the aerobic zone 6 from the sludge zone 8. In the process, the sludge mixed in the sewage can flow from the surface of the inclined plate 12 to the bottom of the sludge zone 8. The baffle 13 is conducive to blocking the sludge from directly entering the aerobic zone 6. The sludge slides onto the inclined plate 12. A device sludge discharge passage 19 is arranged at the bottom of the sludge zone 8. The device sludge discharge passage 19 includes a pipeline 192, a sludge pump and a three-way valve 191. The inlet of the pipeline 192 is arranged at the bottom of the sludge zone 8. The three-way valve 191 is arranged on the pipeline 192. The three-way valve 191 divides the outlet of the pipeline 192 into two, one of which is located at the top of the aerobic zone 6, and the other outlet is directly connected to the external environment. The sludge pump is arranged on the pipeline 192, and the sludge pump transports the sludge in the sludge zone 8 to the two outlets of the pipeline 192 respectively.

[0045] The pipeline 192 transports part of the sludge to the aerobic zone 6, which can supplement the sludge concentration in the aerobic zone 6 and can also be digested as nutrients for new microorganisms.

[0046] In order to improve the sewage treatment capacity of the equipment, two aerobic zones 6 are provided, and the two aerobic zones 6 are respectively provided on both sides of the filler zone 7. Two solid-liquid separation zones 9 are also provided corresponding to the two aerobic zones 6, and the two solid-liquid separation zones 9 are respectively located on both sides of the sludge zone 8.

[0047] See also Figure 2 and Figure 5 Furthermore, a first opening is provided at the top of the equipment housing 1, and a hanging basket 5 is detachably installed at the first opening. A steel plate mesh 51 is laid at the bottom of the hanging basket 5, and ceramsite (not shown in the figure) for planting green plants is placed on the steel plate mesh 51. The green plants used are emergent plants, and the nitrogen and phosphorus pollutants in the sewage are further removed by the principle of nitrogen fixation and phosphorus absorption by their roots. At the same time, the organic pollutants in the sewage can also provide energy for the growth of emergent plants, thereby improving the water quality of the equipment. On the other hand, the microorganisms in the equipment will produce a certain amount of odor, which is absorbed by the emergent plants to improve the local air quality. At the same time, it can also coordinate with the surrounding environment to form a unique landscape effect and achieve the purpose of environmental friendliness. Because there are more root flocs and the roots are relatively tough, they can also serve as a carrier for the growth of microorganisms, increase the biomass in the pool, and can also reduce the discharge of residual sludge to a certain extent, forming a unique pollution removal and purification ecosystem.

[0048] In this embodiment, a handle 52 is provided on the opening edge of the hanging basket 5. When the equipment is found to be abnormal, the hanging basket 5 can be moved to inspect the equipment.

[0049] Please return to Figure 3In order to further ensure that the sewage can fully contact with the simulated plant root system filler 15 and the stability of the installation, the outlet end of the equipment sewage passage 17 is set at three quarters of the overall height of the simulated plant root system filler 15.

[0050] Please return to Figure 6 An aeration pipe 22 is also horizontally arranged in the equipment housing 1, and an air hole 23 is provided on the aeration pipe 22. The air hole 23 forms an upward angle of 45° with the horizontal plane, and the air flow direction of the air hole 23 is arranged toward the triangular weir plate 21. A denitrification liquid self-reflux system is formed between the aeration pipe 22 and the triangular weir plate 21. The driving force generated by strong aeration is used to push the sewage in the aerobic zone 6 into the filler zone 7, complete the denitrification reaction, and achieve the purpose of removing total nitrogen.

[0051] Please return to Figure 1 A device platform 2 is also provided on the side wall of the device housing 1, and a closed connection is formed between the device platform 2 and the door panel 3 to the side wall of the device housing 1. A driving member 4 for driving the door panel 3 to open or close is also provided on the side wall of the device housing 1. The driving member 4 includes but is not limited to a hydraulic cylinder or a pneumatic cylinder. In the present embodiment, the driving member 4 is a hydraulic cylinder, which drives the door panel 3 to open or close through the telescopic movement of the hydraulic cylinder.

[0052] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An ECR sewage treatment equipment, characterized in that; The device comprises a hollow device housing, wherein a spacer assembly is arranged in the device housing, and the spacer assembly divides the inner cavity of the device housing into an aerobic zone, a filler zone and a sludge zone which are interconnected, wherein the aerobic zone is adjacent to the filler zone and is located on the same horizontal plane, and the sludge zone is located below the aerobic zone and the filler zone; The partition assembly comprises a first partition, a triangular weir plate and a second partition plate, wherein the first partition plate is vertically arranged between the aerobic zone and the filler zone, the triangular weir plate is slidably arranged on the first partition plate, and the triangular weir plate is used to adjust the passage width between the aerobic zone and the filler zone; the second partition plate is horizontally arranged at the bottom of the aerobic zone, and the second partition plate is used to provide an installation foundation for the membrane assembly; The spacing assembly further includes an inclined plate, a third partition plate and a baffle plate, wherein the inclined plate is obliquely disposed on the side wall of the sludge zone, the third partition plate is vertically disposed in the sludge zone, and a gap is formed between the third partition plate, the baffle plate and the inclined plate respectively, the baffle plate is connected to the bottom of the first partition plate, and the extension direction of the baffle plate toward the inclined plate is perpendicular to the surface of the inclined plate, the inclined plate, the third partition plate and the baffle plate form a solid-liquid separation zone, and the solid-liquid separation zone is located at the bottom of the aerobic zone; There are two aerobic zones, which are respectively arranged on both sides of the filler zone; there are also two solid-liquid separation zones corresponding to the aerobic zones, which are respectively located on both sides of the sludge zone; The filler area is detachably provided with simulated plant root fillers, and the inlet end of the simulated plant root fillers is connected to the sewage passage of the equipment, and the outlet end of the simulated plant root system is connected to the sludge area. The aerobic area is provided with a membrane module, the inlet end of the membrane module is connected to the aerobic area, and the outlet end of the membrane module is connected to the drainage passage of the equipment; A first opening is provided on the top of the device housing, a hanging basket is detachably mounted on the first opening, a steel plate mesh is laid on the bottom of the hanging basket, and ceramsite for planting green plants is placed on the steel plate mesh; An aeration pipe is also horizontally arranged in the equipment shell, and the aeration pipe has air holes, the air holes form an upward angle of 45° with the horizontal plane, and the air flow direction of the air holes is arranged toward the triangular weir plate; The side wall of the equipment housing is also movably connected with a door panel, and the equipment can be inspected and repaired by opening the door panel.

2. An ECR sewage treatment equipment according to claim 1, characterized in that: The outlet end of the equipment sewage passage is arranged at three quarters of the overall height of the simulated plant root filler.

3. The ECR sewage treatment equipment according to claim 1, characterized in that: The side wall of the first partition is connected with an angle steel, and the simulated plant root filler is connected to the angle steel through threaded steel.

4. The ECR sewage treatment equipment according to claim 1, characterized in that: A device platform is also provided on the side wall of the device housing, and a closed connection is formed between the device platform and the door panel to the side wall of the device housing. A driving member for driving the door panel to open or close is also provided on the side wall of the device housing.

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